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CN-224228999-U - Telescopic connecting device of full-face heading machine

CN224228999UCN 224228999 UCN224228999 UCN 224228999UCN-224228999-U

Abstract

The utility model relates to the technical field of heading machines, and discloses a telescopic connecting device of a full-face heading machine, which comprises a fixed baffle, a detachable baffle, a wedge block, a rocking seat baffle and a base, wherein the fixed baffle is welded on a telescopic shield, the detachable baffle and the fixed baffle are fixed through bolts, a dovetail-shaped inclined plane is arranged on one side of a contact surface of the detachable baffle and the wedge block, the wedge block is of a wedge-shaped structure, the dovetail-shaped inclined plane is arranged on one side of the detachable baffle to prevent the wedge block from falling off, one end of the wedge block slides on the surface of the fixed baffle, the other end of the wedge block slides relatively with the rocking seat, the bottom end of the wedge block is connected with the oil cylinder through a pin shaft, one end of the rocking seat is a cylindrical surface, one end of the rocking seat rotates relatively with the base through the rocking seat baffle and the plane, and the wedge block slides relatively, and the rocking seat is internally provided with a lubricating oil path.

Inventors

  • HE YANJUAN
  • LI ZHIQIANG

Assignees

  • 凯盛重工有限公司

Dates

Publication Date
20260512
Application Date
20250513

Claims (8)

  1. 1. The utility model provides a but full face entry driving machine telescopic connection device, its characterized in that, including fixed stop (1), the one end of fixed stop (1) is through bolted connection has removable baffle (2), the one end of removable baffle (2) is provided with voussoir (3), the one end of voussoir (3) is through the round pin hub connection having hydro-cylinder (7), the one end of voussoir (3) is provided with cradle (4), the both sides end of cradle (4) is through bolted connection having cradle baffle (5), the one end of cradle (4) is connected with base (6) through round pin axle and cradle baffle (5).
  2. 2. A telescopic connection for a full face heading machine according to claim 1, characterized in that the fixed baffle (1) is welded to the telescopic shield of the full face heading machine, the fixed baffle (1) being used for limiting the wedge (3).
  3. 3. A telescopic connection device for a full face heading machine according to claim 1, characterized in that the contact end of the detachable baffle (2) with the wedge (3) is provided with a dovetail-shaped inclined plane for preventing the wedge (3) from falling out.
  4. 4. The telescopic connecting device of the full face heading machine according to claim 1, wherein the wedge block (3) is of a wedge structure, an inclined surface matched with a dovetail inclined surface of the detachable baffle plate (2) is arranged at the contact end of the wedge block (3) and the detachable baffle plate (2), and a lubricating oil way is arranged in the wedge block (3).
  5. 5. A telescopic connection device for a full face heading machine according to claim 1, characterized in that the inclined surface of the wedge (3) is placed at the lower end of the dovetail inclined surface of the detachable baffle (2).
  6. 6. The telescopic connecting device of the full-face heading machine according to claim 1, wherein one end of the rocking seat (4) is a cylindrical surface, the other end of the rocking seat is a plane, the plane end and the wedge block (3) slide relatively, the rocking seat baffle (5) is used as an axis to rotate, and a lubricating oil way is arranged in the rocking seat (4).
  7. 7. A telescopic connection device for a full face heading machine according to claim 1, characterized in that the cradle baffle (5) is of a cylindrical structure with holes and rotates in the pin holes of the base (6).
  8. 8. The telescopic connecting device of the full-face heading machine according to claim 1, wherein the base (6) is provided with pin holes, cylindrical surfaces are arranged between the pin holes, and the base (6) is connected with a main drive through bolts.

Description

Telescopic connecting device of full-face heading machine Technical Field The utility model relates to the technical field of heading machines, in particular to a telescopic connecting device of a full-face heading machine. Background In recent years, full face heading machines are increasingly used in the field of tunnel excavation and heading. In view of different geological conditions and different requirements on equipment performance, an adaptive full-face heading machine is required to be selected according to actual conditions in engineering practice. When encountering complex geological environments such as broken bands, the shield with the telescopic function is particularly important. In the extending state, the shield can be used as a temporary supporting structure, thereby creating favorable conditions for the subsequent permanent supporting operation. At present, the telescopic shield mainly realizes telescopic action through oil cylinder connection, but the existing heading machine is driven by the oil cylinder only, and frequent high-strength work can lead the oil cylinder to bear excessive pressure and abrasion, so that the service life of the telescopic shield is seriously influenced, the equipment maintenance cost is increased, and the construction period can be even delayed due to the failure of the oil cylinder. Therefore, in order to ensure the stable operation of the full-face heading machine under the complex working condition, development of an innovative auxiliary device is needed, and the stress load of the oil cylinder is effectively reduced by optimizing a stress distribution mechanism, so that the aims of prolonging the service life of the oil cylinder and improving the overall reliability of equipment are fulfilled. Disclosure of utility model The utility model aims to provide a telescopic connecting device of a full-face tunneling machine, which solves the technical problems that at present, a telescopic shield mainly realizes telescopic action through oil cylinder connection, but the existing tunneling machine is driven by an oil cylinder only, and frequent high-strength work can cause the oil cylinder to bear excessive pressure and abrasion, so that the service life of the oil cylinder is seriously influenced, the maintenance cost of equipment is increased, and even the construction period is possibly delayed due to the failure of the oil cylinder. The telescopic connecting device of the full-face heading machine comprises a fixed baffle, wherein one end of the fixed baffle is connected with a detachable baffle through a bolt, one end of the detachable baffle is provided with a wedge block, one end of the wedge block is connected with an oil cylinder through a pin shaft, one end of the wedge block is provided with a rocking seat, two side ends of the rocking seat are connected with rocking seat baffles through bolts, and one end of the rocking seat is connected with a base through a pin shaft and the rocking seat baffles. As a further scheme of the utility model, the fixed baffle is welded on the telescopic shield of the full-face heading machine and is used for limiting the wedge blocks. As a further scheme of the utility model, the contact end of the detachable baffle plate and the wedge block is provided with a dovetail-shaped inclined plane for preventing the wedge block from falling off. As a further scheme of the utility model, the wedge block is of a wedge structure, the contact end of the wedge block and the detachable baffle is provided with an inclined plane matched with the dovetail inclined plane of the detachable baffle, and a lubricating oil way is arranged in the wedge block. As a further proposal of the utility model, the inclined plane of the wedge block is arranged at the lower end of the dovetail inclined plane of the detachable baffle. As a further scheme of the utility model, one end of the rocking seat is a cylindrical surface, the other end of the rocking seat is a plane, the plane end and the wedge block relatively slide, the rocking seat baffle is used as an axis to rotate, and a lubricating oil way is arranged in the rocking seat. As a further scheme of the utility model, the rocking seat baffle is of a cylindrical structure with holes and rotates in the pin shaft holes of the base. As a further scheme of the utility model, the base is provided with pin shaft holes, cylindrical surfaces are arranged between the pin shaft holes, and the base is connected with a main drive through bolts. The utility model has the beneficial effects that: (1) According to the utility model, the oil cylinder and the wedge block are retracted, the shield is retracted, the cradle rotates reversely, the shield telescoping function is effectively achieved, the wedge block slides and the cradle rotates, the telescoping and buffering functions are achieved, the tunnel tunneling requirements under complex geological conditions are met, the impact force born by the oil cylinder