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CN-224213154-U - Hanging basket walking device for continuous beam

CN224213154UCN 224213154 UCN224213154 UCN 224213154UCN-224213154-U

Abstract

The utility model relates to the technical field of continuous beam basket hanging construction, in particular to a basket hanging travelling device for a continuous beam, which comprises a hydraulic pushing device, wherein the hydraulic pushing device consists of two groups of hydraulic pushing mechanisms, each hydraulic pushing mechanism consists of a front supporting point, a pushing mechanism and a main hydraulic cylinder, the front supporting point and the pushing mechanism are in sliding fit with the bottom end of a bottom chord of a truss mechanism, the main hydraulic cylinders are connected between the front supporting point and the pushing mechanism, each main hydraulic cylinder is connected to a hydraulic oil pump in parallel through a high-pressure oil pipe, a hydraulic top stroke sensor is arranged on the side edge of each main hydraulic cylinder, a laser displacement sensor is arranged between two bottom chords of the truss mechanism, and the laser displacement sensor, the hydraulic top stroke sensor and the hydraulic oil pump are electrically connected with a controller. According to the utility model, the travel of the main hydraulic cylinder is monitored in real time through the hydraulic top travel sensor, the displacement between two bottom chords of the truss mechanism is monitored through the laser displacement sensor, and the action of each hydraulic pushing mechanism is regulated in a mode of controlling and regulating oil supply quantity, so that the travelling synchronism of the hanging basket can be remarkably improved.

Inventors

  • ZHANG YOUPING
  • ZHAO LUXIN
  • LI PENGFEI
  • ZHANG LIANG

Assignees

  • 四川省交通建设集团有限责任公司

Dates

Publication Date
20260508
Application Date
20250609

Claims (10)

  1. 1. The hanging basket traveling device for the continuous beam comprises a truss mechanism (100), wherein the truss mechanism (100) consists of two trusses which are symmetrically distributed left and right, and is characterized in that the hanging basket traveling device comprises a hydraulic pushing device (200), the hydraulic pushing device (200) consists of two groups of hydraulic pushing mechanisms, and the two groups of hydraulic pushing mechanisms are respectively arranged in the middle of a bottom chord (110) of the truss mechanism (100) and at the tail of the bottom chord (110); The hydraulic pushing mechanism consists of a front supporting point (210), a pushing mechanism (220) and a main hydraulic cylinder (230), wherein the front supporting point (210) and the pushing mechanism (220) are in sliding fit with the bottom end of a bottom chord (110) of the truss mechanism (100), the fixed end of the main hydraulic cylinder (230) is connected with the pushing mechanism (220), the output end of the main hydraulic cylinder (230) is connected with the front supporting point (210), each main hydraulic cylinder (230) is connected with a hydraulic oil pump (300) in parallel through a high-pressure oil pipe, and a hydraulic top stroke sensor (250) is arranged on the side edge of the main hydraulic cylinder (230); And a laser displacement sensor is arranged between the two bottom chords (110) of the truss mechanism (100), and the laser displacement sensor, the hydraulic top stroke sensor (250) and the hydraulic oil pump (300) are electrically connected with a controller.
  2. 2. The basket walking device for continuous beams as claimed in claim 1, wherein the hydraulic pushing mechanism further comprises a set of auxiliary hydraulic cylinders (240) provided at the side of the main hydraulic cylinder (230), the set of auxiliary hydraulic cylinders (240) being composed of a plurality of auxiliary hydraulic cylinders (240) and being connected between the front fulcrum (210) and the pushing mechanism.
  3. 3. The hanging basket running gear for a continuous beam according to claim 2, wherein the sub hydraulic cylinder (240) group is connected to a hydraulic oil pump (300) of a hydraulic oil pump (300) through independent oil passages, and a proportional valve is provided on each of the independent oil passages.
  4. 4. The basket walker for a continuous beam as claimed in claim 2, wherein said set of secondary hydraulic cylinders (240) is comprised of two secondary hydraulic cylinders (240), said two secondary hydraulic cylinders (240) being provided on either side of the primary hydraulic cylinder (230).
  5. 5. The hanging basket walking device for the continuous beam according to claim 2, wherein the front supporting point (210) comprises a bottom plate (211) and a plurality of front supporting point (210) wallboards which are arranged on the bottom plate (211) at intervals along the longitudinal direction, a first installation gap is formed between the front supporting point (210) wallboards, the front ends of the main hydraulic cylinder (230) and the auxiliary hydraulic cylinder (240) are arranged in the first installation gap, a first connecting pin shaft (213) is transversely arranged at the front end of the first installation gap, and the front ends of the main hydraulic cylinder (230) and the auxiliary hydraulic cylinder (240) are connected with the first connecting pin shaft (213); The propelling mechanism (220) comprises a plurality of propelling mechanism wallboards (221) which are longitudinally arranged at intervals, a plurality of second installation gaps are formed between the propelling mechanism wallboards (221), the rear ends of the main hydraulic cylinder (230) and the auxiliary hydraulic cylinder (240) are arranged in the second installation gaps, the front ends of the second installation gaps are transversely provided with second connecting pin shafts (222), and the rear ends of the main hydraulic cylinder (230) and the auxiliary hydraulic cylinder (240) are connected with the second connecting pin shafts (222).
  6. 6. The hanging basket traveling device for the continuous beam according to claim 5, wherein a plurality of stiffening plates in front supporting points (210) are arranged in the first installation gap at intervals in the longitudinal direction, and the stiffening plates in the front supporting points (210) are sleeved outside the front ends of the main hydraulic cylinder (230) and the auxiliary hydraulic cylinder (240).
  7. 7. The hanging basket running gear for continuous beams as claimed in claim 5, wherein a plurality of front supporting point (210) external stiffening plates arranged at intervals along the longitudinal direction are arranged on the lateral outside of the front supporting point (210) wallboard; And a plurality of pushing mechanism stiffening plates (223) which are arranged at intervals along the longitudinal direction are arranged on the transverse outer side of the pushing mechanism wallboard (221).
  8. 8. The hanging basket walking device for continuous beams as claimed in claim 5, wherein the front pivot (210) further comprises a plurality of cushion beams (216) disposed under the bottom plate (211), and the plurality of cushion beams (216) are fixedly connected with the bottom plate (211).
  9. 9. The hanging basket walking device for the continuous beam according to claim 5, wherein the first installation gap is transversely provided with a third connecting pin shaft, a first pawl (217) is arranged on the third connecting pin shaft, the second installation gap is transversely provided with a fourth connecting pin shaft, and a second pawl (224) is arranged on the fourth connecting pin shaft; The lower end of the bottom chord (110) of the truss mechanism (100) is longitudinally provided with a plurality of clamping grooves which are matched with the first pawl (217) and the second pawl (224) at intervals.
  10. 10. The hanging basket running gear for the continuous beam according to claim 7, wherein the front supporting point (210) further comprises a front supporting point (210) horizontal plate arranged above the outer stiffening plate of the front supporting point (210), and a first limiting mechanism (219) matched with the lower end of the bottom chord (110) of the truss mechanism (100) is arranged on the front supporting point (210) horizontal plate; The pushing mechanism further comprises a pushing mechanism connecting plate (225) arranged above the pushing mechanism stiffening plate (223), and a second limiting mechanism (226) matched with the lower end of the bottom string (110) of the truss mechanism (100) is arranged on the pushing mechanism connecting plate (225).

Description

Hanging basket walking device for continuous beam Technical Field The utility model relates to the technical field of continuous beam basket hanging construction, in particular to a basket hanging travelling device for a continuous beam. Background In bridge cantilever pouring construction, the synchronism and stability of cradle walking directly influence the construction efficiency and the structural safety. The traditional hanging basket adopts a single high-power hydraulic ram driving or mechanical chain synchronization scheme, and has the technical bottlenecks of insufficient synchronization precision, poor fault tolerance, single control strategy and the like. The hydraulic system is influenced by oil pressure fluctuation, pipeline delay and mechanical abrasion, and displacement deviation is easy to generate when the multi-hydraulic jack cooperates to cause the phenomena of basket deviation and even rail clamping, so that the basket overturning accident is easy to be caused. The problems seriously threaten construction safety, often cause construction progress delay and maintenance cost increase, and are difficult to meet the severe requirements of modern bridge engineering on efficient, safe and accurate construction. Based on the above, how to realize the synchronization of the multi-hydraulic jack of the hanging basket traveling device is a technical problem to be solved in the prior art. Disclosure of utility model The utility model aims to provide a hanging basket travelling device for a continuous beam, which is characterized in that the travel of a main hydraulic cylinder is monitored in real time through a hydraulic top travel sensor, the displacement between two bottom chords of a truss mechanism is monitored through a laser displacement sensor, closed-loop control is formed by combining a controller, the action of each hydraulic pushing mechanism is accurately regulated, and the hanging basket travelling synchronism can be remarkably improved, so that the technical problem of insufficient synchronous precision in the traditional scheme is solved. The utility model is realized by the following technical scheme that the hanging basket travelling device for the continuous beam comprises a truss mechanism, wherein the truss mechanism consists of two trusses which are symmetrically distributed left and right, the hanging basket travelling device comprises a hydraulic pushing device, the hydraulic pushing device consists of two groups of hydraulic pushing mechanisms, and the two groups of hydraulic pushing mechanisms are respectively arranged at the middle part and the tail part of a bottom chord of the truss mechanism; The hydraulic pushing mechanism consists of a front supporting point, a pushing mechanism and main hydraulic cylinders, wherein the front supporting point and the pushing mechanism are in sliding fit with the bottom end of a bottom chord of the truss mechanism, the fixed end of each main hydraulic cylinder is connected with the pushing mechanism, the output end of each main hydraulic cylinder is connected with the front supporting point, each main hydraulic cylinder is connected to a hydraulic oil pump in parallel through a high-pressure oil pipe, and a hydraulic top stroke sensor is arranged on the side edge of each main hydraulic cylinder; And a laser displacement sensor is arranged between the two bottom chords of the truss mechanism, and the laser displacement sensor, the hydraulic top stroke sensor and the hydraulic oil pump are electrically connected with the controller. According to a preferred embodiment, the hydraulic pushing mechanism further comprises a secondary hydraulic cylinder group arranged on the side edge of the primary hydraulic cylinder, wherein the secondary hydraulic cylinder group consists of a plurality of secondary hydraulic cylinders and is connected between the front pivot and the pushing mechanism. According to a preferred embodiment, the auxiliary hydraulic cylinder group is connected to the hydraulic oil pump through independent oil passages, and each independent oil passage is provided with a proportional valve. According to a preferred embodiment, the auxiliary hydraulic cylinder group consists of two auxiliary hydraulic cylinders, and the two auxiliary hydraulic cylinders are respectively arranged at two sides of the main hydraulic cylinder. According to a preferred embodiment, the front fulcrum comprises a bottom plate and a plurality of front fulcrum wallboards which are arranged on the bottom plate at intervals along the longitudinal direction, a first installation gap is formed among the plurality of front fulcrum wallboards, the front ends of the main hydraulic cylinder and the auxiliary hydraulic cylinder are arranged in the first installation gap, a first connecting pin shaft is transversely arranged at the front end of the first installation gap, and the front ends of the main hydraulic cylinder and the auxiliary hydraulic cylinder are conn