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CN-224223185-U - Bearing replacement device

CN224223185UCN 224223185 UCN224223185 UCN 224223185UCN-224223185-U

Abstract

The application provides a bearing replacement device which is used for a heading machine and is used for replacing a bearing on a main drive, the main drive is connected to a cutterhead, the bearing replacement device comprises a driving piece and a supporting piece, the driving piece and the supporting piece are arranged at intervals along the axial direction of the heading machine, the driving piece is located on one side of the supporting piece, which is close to the cutterhead, one end of the driving piece is used for being connected with the main drive, the other end of the driving piece is connected with the supporting piece, the driving piece is configured to pull the main drive along a first direction to form a separation state of the main drive and the cutterhead, the driving piece is further configured to push the main drive along a second direction to form a connection state of the main drive and the cutterhead, and the first direction and the second direction are opposite directions along the axial direction of the heading machine. According to the application, the shield body is not required to be dismantled, and the whole main drive can be pulled out of the shield body, so that the work of detaching and detecting in a hole or replacing the main bearing is realized, the use safety performance of equipment is effectively enhanced, and the service life is prolonged.

Inventors

  • LIU PAI
  • NI YI

Assignees

  • 中国铁建重工集团股份有限公司

Dates

Publication Date
20260512
Application Date
20250526

Claims (10)

  1. 1. A bearing replacement device for a heading machine, the bearing replacement device comprising a drive member and a support member; The driving piece and the supporting piece are arranged at intervals along the axial direction of the heading machine, one end of the driving piece is used for being connected with a main drive on a cutterhead, and the other end of the driving piece is connected with the supporting piece; The driving piece is configured to pull the main driving piece along a first direction to form a separation state of the main driving piece and the cutterhead, and the driving piece is further configured to push the main driving piece along a second direction to form a connection state of the main driving piece and the cutterhead; The first direction and the second direction are opposite directions along the heading machine in an axial direction.
  2. 2. The bearing exchange device of claim 1 wherein there is a displacement zone between the drive member and the support member in an axial direction of the heading machine, the displacement zone configured for reciprocal movement by the primary drive.
  3. 3. The bearing replacement apparatus according to claim 2, further comprising a plurality of stoppers distributed on both sides of the moving area in a radial direction of the heading machine, the stoppers being for restricting the driving member during movement.
  4. 4. The bearing replacement device of claim 1 wherein the drive member comprises a plurality of; the driving pieces are used for being distributed on two sides of the main driving along the radial direction of the heading machine; And/or, along the axial direction of the heading machine, a plurality of driving pieces are sequentially connected.
  5. 5. The bearing exchange device of claim 1 further comprising a slider for positioning at a bottom of the main drive, the main drive reciprocally sliding relative to the slider.
  6. 6. The bearing replacement device of claim 5 wherein the number of slides comprises a plurality; a plurality of sliding pieces are positioned at two sides of the main drive along the radial direction of the heading machine; And/or, along the axial direction of the heading machine, a plurality of sliding parts are sequentially connected.
  7. 7. The bearing replacement device of claim 1, further comprising a buffer member disposed at a junction of the driving member and the supporting member; and/or the two ends of the driving piece are respectively provided with a quick connector, and the driving piece is respectively connected with the main driving piece and the supporting piece through the quick connectors.
  8. 8. The bearing replacement apparatus of claim 1 further comprising a lifting member disposed on the support member, the lifting member configured to lift the pulled-out main drive.
  9. 9. The bearing replacement apparatus according to claim 8, wherein the hoist includes an electric block and a hoist rope, the electric block being configured to supply hoist power, one end of the hoist rope being connected to the electric block, and the other end being connected to the main drive.
  10. 10. The bearing replacement apparatus according to claim 5, wherein the driving member comprises a telescopic cylinder, and/or the supporting member comprises an H-frame, and/or the sliding member comprises a slideway.

Description

Bearing replacement device Technical Field The application relates to the technical field of shield machines, in particular to a bearing replacement device. Background The tunneling machine is a special engineering machine for tunneling, tunneling can be performed underground by accurate control of a computer according to different geological conditions, and a high-quality tunnel can be formed after a segment is spliced at the tail part. The main bearing of the heading machine is used as a key component for connecting a cutterhead system and a power system, and the service life and reliability of the main bearing directly influence the construction safety of the heading machine. In the related art, in construction, aiming at long distance and complex geological conditions, or when in-hole disassembly and inspection of main bearings of key parts of a main drive are required and main bearings are required to be replaced, a shield body and the like are required to be removed to hoist, turn over, disassemble and assemble the main drive, which cannot be realized in a conventional structure. Therefore, on the basis of not disassembling the shield body, research on a device for replacing the main driving bearing is a current problem to be solved. Disclosure of utility model The embodiment of the application provides a bearing replacement device, which can realize that a main drive is integrally pulled out of and separated from a shield body without dismantling the shield body, thereby realizing the work of disassembling and inspecting in a hole or replacing a main bearing, effectively enhancing the use safety performance of equipment and prolonging the service life. In order to achieve the above object, an embodiment of the present application provides a bearing replacement device for a heading machine, which is used for replacing a bearing on a main drive, the main drive being connected to a cutterhead, the bearing replacement device including a driving member and a supporting member; The driving piece and the supporting piece are arranged at intervals along the axial direction of the heading machine, and the driving piece is positioned on one side of the supporting piece, which is close to the cutterhead; One end of the driving piece is used for being connected with the main driving piece, and the other end of the driving piece is connected with the supporting piece; The driving piece is configured to pull the main driving piece along a first direction to form a separation state of the main driving piece and the cutterhead, and the driving piece is further configured to push the main driving piece along a second direction to form a connection state of the main driving piece and the cutterhead; The first direction and the second direction are opposite directions along the heading machine in an axial direction. In one possible implementation, there is a movement zone between the drive member and the support member in the axial direction of the heading machine, the movement zone being configured for reciprocal movement by the main drive. In one possible implementation manner, the device further comprises a plurality of limiting pieces, wherein the limiting pieces are distributed on two sides of the driving piece along the radial direction of the heading machine, and the limiting pieces are used for limiting the driving piece in the moving process. In one possible implementation, the driving members include a plurality of driving members, wherein the driving members are distributed on two sides of the main driving member along a radial direction of the heading machine, and/or the driving members are sequentially connected along an axial direction of the heading machine. In one possible implementation, the device further comprises a sliding member, wherein the sliding member is arranged at the bottom of the main drive, and the main drive slides reciprocally relative to the sliding member. In one possible implementation, the number of the sliding pieces includes a plurality, the sliding pieces are located at two sides of the main drive along the radial direction of the heading machine, and/or the sliding pieces are sequentially connected along the axial direction of the heading machine. In one possible implementation manner, the device further comprises a buffer member, wherein the buffer member is arranged at the connection part of the driving member and the supporting member; And/or the two ends of the driving piece are respectively provided with a quick connector, and the driving piece is connected with the main driving piece and the supporting piece through the quick connectors. In one possible implementation manner, the device further comprises a lifting piece, wherein the lifting piece is arranged on one side of the supporting piece, which is far away from the cutterhead; the lifting member is configured to lift the pulled-out main drive. In one possible implementation manner, the hoisting piece comprises an ele