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CN-121993219-A - Assembled excavation bench and intelligent control and self-adaptation positioning system

CN121993219ACN 121993219 ACN121993219 ACN 121993219ACN-121993219-A

Abstract

The invention discloses an assembled excavation bench and an intelligent control and self-adaptive positioning system, and relates to the technical field of tunnel construction, wherein the assembled excavation bench comprises a first support frame, a second support frame, a support platform and an operation platform, and the first support frame and the second support frame are oppositely arranged; the support platform is arranged at the position between the first support frame and the second support frame, the support platform is connected with the second support frame through the first support frame, the support platform moves up and down on the first support frame and the second support frame, the operation platform is arranged on the support platform, and the operation platform moves horizontally on the support platform, so that the problems that the degree of freedom of the excavation bench is single, and the requirements of different bench excavation operation positions of tunnels cannot be flexibly met in the prior art can be solved.

Inventors

  • WANG QINGQUAN
  • CAO JUNXIU
  • ZHANG YUANZE
  • ZHANG JING
  • LIU ZIYANG

Assignees

  • 中铁四局集团第五建设有限公司
  • 中铁四局集团有限公司
  • 中铁四局集团第五工程有限公司

Dates

Publication Date
20260508
Application Date
20260305

Claims (10)

  1. 1. An assembled excavation bench, characterized by comprising: The device comprises a first supporting frame (100) and a second supporting frame (200), wherein the first supporting frame (100) and the second supporting frame (200) are oppositely arranged; The support platform (300) is arranged at the top position between the first support frame (100) and the second support frame (200), the support platform (300) is connected with the second support frame (200) through the first support frame (100), and the support platform (300) moves up and down through the first support frame (100) and the second support frame (200); And the operation platform (400) is arranged on the supporting platform (300), and the operation platform (400) horizontally moves on the supporting platform (300).
  2. 2. The fabricated excavation bench according to claim 1, wherein lifting rails (500) are vertically disposed on the first support frame (100) and the second support frame (200), lifting driving devices are disposed on the support platforms (300) corresponding to the lifting rails (500), and the lifting driving devices drive the support platforms (300) to lift along the lifting rails (500).
  3. 3. A fabricated excavation bench as claimed in claim 2, characterized in that the first support frame (100) and the second support frame (200) are each composed of a base support (600) and a sliding support (700); Wherein the sliding support (700) is located on the base support (600), the sliding support (700) horizontally moving on the base support (600); The sliding support (700) and the base support (600) are both provided with the lifting rail (500), and the horizontal cooperation of the sliding support (700) and the base support (600) enables the lifting rail (500) on the sliding support (700) and the lifting rail (500) on the base support (600) to be in butt joint.
  4. 4. A fabricated excavation bench as claimed in claim 3, characterized in that a horizontal driving means is provided between the base support (600) and the sliding support (700), the horizontal driving means driving the sliding support (700) to move horizontally with respect to the base support (600).
  5. 5. The assembly type excavation bench according to claim 1, wherein a horizontal guide rail (320) is provided on the supporting platform (300), and the operating platform (400) is provided with a slider (410) and a platform driving device corresponding to the horizontal guide rail (320), and the platform driving device drives the operating platform (400) to horizontally move along the horizontal guide rail (320).
  6. 6. An intelligent control and self-adaptive positioning system, which is characterized by comprising: the distance measuring device is arranged on the operation platform (400) and is used for detecting the distance between the operation platform (400) and the excavation surface; the storage module is used for pre-storing standard parameter sets of various excavation construction methods, wherein the standard parameter sets comprise standard step heights, maximum safe extension lengths of platforms and minimum safe operation distances under the construction methods; The central controller is used for controlling a driving device of the excavation rack according to the selected construction method and the real-time ranging data, so that the operation platform (400) is adaptively positioned to a target operation position; The central controller is configured to call a corresponding standard parameter set according to a selected excavation construction method, and generate a control instruction to drive a corresponding device by combining real-time detection data of the distance measuring device, so that the operation platform (400) is adaptively positioned to a target operation position matched with the current excavation step.
  7. 7. The intelligent control and adaptive positioning system according to claim 6, wherein the control logic of the central controller comprises safety interlock logic, wherein the central controller automatically limits or stops the platform driving device to prevent the operation platform (400) from being excessively extended when the real-time distance detected by the distance measuring device is smaller than the minimum safe working distance corresponding to the current working method.
  8. 8. The intelligent control and adaptive positioning system of claim 7, wherein the central controller is configured with at least two control modes: the independent mode is that the lifting movement of the supporting platform (300), the horizontal movement of the operating platform (400) and the horizontal movement of the sliding supporting piece (700) can be controlled independently; and in the linkage mode, the central controller controls the lifting driving device to act cooperatively with the platform driving device, so that the horizontal position of the operating platform (400) can be compensated and adjusted according to a preset rule or real-time ranging data when the operating platform vertically lifts.
  9. 9. The intelligent control and adaptive positioning system of claim 6, wherein the ranging device is one or more of a laser ranging sensor, an ultrasonic sensor, or an infrared ranging sensor.
  10. 10. The intelligent control and adaptive positioning system according to any one of claims 6-9, further comprising a status monitoring module for monitoring the operating status of the lift drive, the platform drive, and the horizontal drive in real time.

Description

Assembled excavation bench and intelligent control and self-adaptation positioning system Technical Field The invention relates to the technical field of tunnel construction, in particular to an assembled excavation bench and an intelligent control and self-adaptive positioning system. Background In tunnel engineering construction, the assembled excavation bench is the key equipment that is used for supporting the excavation working face, provides operating space for constructor and equipment. Along with the development of the construction process, a plurality of construction methods such as a three-step method, a micro-step method, a high-step method and the like are derived to adapt to different geological conditions and engineering requirements. These methods have different specific requirements on the height, depth and position of the working platform of the digging step. Currently, the assembly type excavation bench commonly used in the market generally has a basic mechanical adjusting function, for example, lifting of a supporting platform and horizontal extension and retraction of an operating platform are realized through a hydraulic cylinder or motor drive. Such a gantry improves the flexibility and adaptability of the device to a certain extent. However, in practical applications, particularly in complex tunnel construction scenarios coping with switching of various step construction methods, the prior art has the following significant drawbacks: (1) The lifting and the retraction of the stand are controlled by an operator singly or manually. When the excavation steps or the construction method are converted each time, workers are required to repeatedly adjust the height of the supporting platform and the extension length of the operating platform according to visual inspection or simple measurement so as to find a proper operation position. The process is time-consuming and labor-consuming, the adjustment precision is difficult to ensure, the efficiency and quality of the excavation operation are directly affected, the existing bench is only a general movable machine, a control system of the existing bench does not have a function of storing standard parameters of a specific construction method, and the existing bench cannot automatically calculate and drive the platform to reach a target position according to the selected construction method. The device can not be quickly and accurately adapted to standard chemical methods with strict size requirements such as three steps, micro steps and the like, the standardization and standardization level of construction is restricted, and (3) the horizontal extension length of the operation platform lacks accurate real-time monitoring and feedback. Under the complex environment in the tunnel, only by means of manual judgment, the risk that the platform stretches out too much to collide with the excavation working face is easily generated, or the normal construction is influenced by too short stretching out. Existing devices often lack automatic safety interlocking mechanisms based on real-time distance detection, and have large potential safety hazards. The motion cooperativity of the mechanisms is insufficient, namely, the lifting of the supporting platform, the expansion and contraction of the operating platform and the adjustment of the width of the supporting frame are often independent operations, and the multi-axis linkage cooperativity is difficult to realize. For example, the horizontal position of the platform cannot be automatically fine-tuned in the lifting process of the platform so as to maintain the optimal relative posture with the excavated surface, and the platform is complex in operation and difficult to reach the optimal working state. Disclosure of Invention The invention provides an assembled excavation bench and an intelligent control and self-adaptive positioning system, which can solve the problems that in the prior art, the degree of freedom of the excavation bench is single, and the requirements of different bench excavation operation positions of tunnels cannot be flexibly met. In order to solve the above problems, the present invention provides an assembled excavation bench, comprising: the first support frame and the second support frame are oppositely arranged; the support platform is arranged between the first support frame and the second support frame, is connected with the second support frame through the first support frame and moves up and down on the first support frame and the second support frame; the operation platform is arranged on the supporting platform and horizontally moves on the supporting platform. Compared with the prior art, the assembled excavation bench provided by the invention has the following beneficial effects: Through with supporting platform swing joint and realize reciprocating between relative first and the second support frame that sets up, make operation platform set up on supporting platform a