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CN-121993218-A - Multifunctional tunnel surrounding rock surface pretreatment and concrete injection integrated trolley

CN121993218ACN 121993218 ACN121993218 ACN 121993218ACN-121993218-A

Abstract

The invention relates to the technical field of tunnel surrounding rock treatment trolleys, in particular to a multifunctional tunnel surrounding rock surface pretreatment and concrete injection integrated trolley which comprises a trolley body, wherein a guniting device and a vibrating part are arranged on the trolley body, the vibrating part comprises a working box, the vibrating part further comprises a control arm, the working box is arranged on the control arm, a driving motor is arranged on the working box, a limiting assembly is arranged on the top of the working box in a sliding manner, a vibrating roller is arranged on the limiting assembly, a driving shaft connected with an output shaft of the driving motor is rotationally arranged on the working box, a crankshaft assembly for driving the vibrating roller to vibrate is arranged on the driving shaft, and the integrated framework of high-frequency multipoint driving, elastic resetting and double buffering is adopted to realize the efficient, fine and low-damage pretreatment of the tunnel surrounding rock surface, effectively overcomes the defects of the existing guniting trolley in pretreatment capacity, and solves the problems of poor spray layer adhesion, construction reworking and the like caused by insufficient surface treatment.

Inventors

  • ZHONG ZULIANG
  • LI LAIYANG
  • ZHU KAIXIN
  • XIONG JUN
  • LI YIHANG
  • Liao jiaxin
  • DING YIFAN

Assignees

  • 重庆大学

Dates

Publication Date
20260508
Application Date
20260407

Claims (10)

  1. 1. The multifunctional tunnel surrounding rock surface pretreatment and concrete injection integrated trolley comprises a vibration part and is characterized in that the vibration part comprises a working box (4), a driving motor (5) is arranged on the working box (4), a limiting assembly (7) is arranged at the inner top of the working box (4) in a sliding manner, a vibration roller (8) is arranged on the limiting assembly (7), a driving shaft (9) connected with the output shaft of the driving motor (5) is rotationally arranged in the working box (4), and a crankshaft assembly (10) for driving the vibration roller (8) to vibrate is arranged on the driving shaft (9); the limiting assembly (7) comprises a U-shaped supporting plate (71) arranged in the working box (4), supporting arms (74) are elastically arranged in two ends of the U-shaped supporting plate (71) in a telescopic manner, and the vibrating roller (8) is rotatably arranged between the two supporting arms (74); The crankshaft assembly (10) comprises a plurality of groups of reciprocating members arranged on the driving shaft (9), the included angles formed between the adjacent reciprocating members are equal, and the sum of the included angles formed between the adjacent reciprocating members is 360 degrees.
  2. 2. The multifunctional tunnel surrounding rock surface pretreatment and concrete spraying integrated trolley according to claim 1 is characterized by further comprising a trolley body (1), wherein a spraying device (2) is arranged on the trolley body (1), the vibration part further comprises a control arm (3), and the working box (4) is arranged on the control arm (3).
  3. 3. The multifunctional tunnel surrounding rock surface pretreatment and concrete spraying integrated trolley according to claim 1 is characterized in that a movable groove (6) is formed in the center of the top of the working box (4).
  4. 4. The multifunctional tunnel surrounding rock surface pretreatment and concrete spraying integrated trolley according to claim 3, wherein sliding grooves (72) are formed in two ends of the U-shaped supporting plate (71), and return springs (73) are arranged in the sliding grooves (72). The supporting arms (74) are slidably connected in the sliding groove (72) through the return springs (73), and a bottom plate (75) is fixedly connected between the two supporting arms (74).
  5. 5. The multifunctional tunnel surrounding rock surface pretreatment and concrete spraying integrated trolley according to claim 4, wherein the bottom plate (75) is slidingly connected in the movable groove (6) through a supporting arm (74).
  6. 6. The multifunctional tunnel surrounding rock surface pretreatment and concrete injection integrated trolley according to claim 5, wherein the driving shaft (9) is uniformly divided into a plurality of sections, an avoidance port (12) is formed between each section, and the reciprocating member is arranged in the corresponding avoidance port (12).
  7. 7. The multifunctional tunnel surrounding rock surface pretreatment and concrete injection integrated trolley according to claim 6, wherein the reciprocating piece comprises a connecting shaft (103) fixedly connected in the avoidance port (12), the connecting shaft (103) is located at the eccentric position of the driving shaft (9), a driving arm (102) is rotationally connected to the connecting shaft (103), a push rod (101) is rotationally connected to the other end of the driving arm (102), the push rod (101) is slidingly connected to the U-shaped supporting plate (71), and one end of the push rod (101) away from the driving arm (102) is connected with the bottom plate (75).
  8. 8. The multifunctional tunnel surrounding rock surface pretreatment and concrete spraying integrated trolley according to claim 7, wherein a buffer spring (11) is arranged on the ejector rod (101), and the ejector rod (101) is connected with a bottom plate (75) through the buffer spring (11).
  9. 9. The multifunctional tunnel surrounding rock surface pretreatment and concrete spraying integrated trolley according to claim 8, wherein the included angles formed among the connecting shafts (103) are equal, and the sum of the included angles formed among the connecting shafts (103) is 360 degrees.
  10. 10. The multifunctional tunnel surrounding rock surface pretreatment and concrete spraying integrated trolley according to claim 9, characterized in that the elastic force of the return spring (73) is far greater than that of the buffer spring (11), and when the ejector rod (101) reaches the lowest point of the stroke, the bottom plate (75) reaches the top end of the U-shaped supporting plate (71); When the ejector rod (101) reaches the highest stroke point, the buffer spring (11) is in a compressed state; When the ejector rod (101) reaches the lowest stroke point, the buffer spring (11) is in a stretching state.

Description

Multifunctional tunnel surrounding rock surface pretreatment and concrete injection integrated trolley Technical Field The invention relates to the technical field of tunnel surrounding rock treatment trolleys, in particular to a multifunctional tunnel surrounding rock surface pretreatment and concrete injection integrated trolley. Background Through retrieving, according to the multifunctional trolley for tunnel construction and the construction method disclosed by publication number CN113898365A, the multifunctional trolley comprises a trolley body, wherein a plurality of telescopic mechanical arms are arranged on the trolley body, the mechanical arms can pitch, the mechanical arms can slide relative to the trolley body, a rock drilling device, a crushing device, a gripper device and a guniting device are arranged on the trolley body, and the rock drilling device, the crushing device, the gripper device and the guniting device are respectively or combined on the mechanical arms. The method aims at simultaneously meeting the requirements of various working procedures in tunnel construction by arranging the rock drilling device, the crushing device, the gripper device and the guniting device on one engineering trolley, saving the time occupied by the engineering trolley for entering and exiting the tunnel and shortening the construction process. The above-mentioned patent still has the shortcoming when in actual use, and current platform truck is usually only used to carry out concrete guniting operation to tunnel country rock, and the country rock surface need go through necessary preliminary treatment before the guniting. The pretreatment mainly comprises the trimming of the flatness of surrounding rock and the removal or crushing of rock masses with local protrusions or larger particle sizes so as to ensure good bonding performance and coverage uniformity between a guniting layer and the surrounding rock. Although some trolleys are integrated with pretreatment devices, most of the trolleys adopt a single mechanical knocking or low-frequency vibration mode, so that the effect is limited, the vibration frequency is insufficient, and the fine treatment of the surrounding rock surface is difficult to be efficiently and uniformly finished, so that the follow-up guniting quality and the construction efficiency are affected. Based on the above, the invention discloses a multifunctional tunnel surrounding rock surface pretreatment and concrete injection integrated trolley. Disclosure of Invention In order to solve the problems that the trolley proposed in the background art is mainly used for shotcrete of surrounding rocks of a tunnel, but the pretreatment of the surrounding rocks is needed before the shotcrete, including trimming flatness and clearing large protruding rocks to ensure the bonding quality of a shotcrete, and even if a part of the trolley is equipped with a pretreatment device, a single knocking or low-frequency vibration mode is adopted, and high-efficiency and uniform surface treatment is difficult to realize, the invention provides a multifunctional trolley integrating the pretreatment of the surface of the surrounding rocks of the tunnel and the shotcrete, which comprises a trolley body, wherein the trolley body is provided with a shotcrete device and a vibration part, the vibration part comprises a working box, the vibration part also comprises a control arm, the working box is arranged on the control arm, a driving motor is arranged on the working box, a limiting component is arranged at the top part in the working box in a sliding way, a vibration roller is arranged on the limiting component, a driving shaft connected with an output shaft of the driving motor, and a crankshaft component for driving the vibration roller is arranged on the driving shaft; The vibration roller is required to reset during vibration, so that the surrounding rock wall is convenient to continuously impact next time, the traditional vibration roller is directly driven by the crankshaft to perform extrusion vibration, the service life of the crankshaft is seriously influenced, and the vibration roller is equivalent to indirect hard contact during impact of the vibration roller and the rock wall and drives the larger vibration roller to swing back and forth when being hard connected with the vibration roller through the crankshaft, so that the load of the crankshaft is seriously increased; As a further improvement of the technical scheme, the movable groove is formed in the center of the top of the working box, the limiting assembly comprises a U-shaped supporting plate arranged in the working box, supporting arms are elastically arranged in two ends of the U-shaped supporting plate in a telescopic manner, the vibrating roller is rotatably arranged between the two supporting arms, sliding grooves are formed in two ends of the U-shaped supporting plate, and reset springs are arranged in the sliding grooves. The support