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CN-224212316-U - Vehicle-mounted lifting arm for low and narrow space of coal mine

CN224212316UCN 224212316 UCN224212316 UCN 224212316UCN-224212316-U

Abstract

The utility model relates to the technical field of mining machinery, in particular to a vehicle lifting boom for a low and narrow space of a coal mine, which comprises a mounting seat assembly, a rotary seat, a pitching driving piece, a first boom, a second boom, a third boom and a lifting piece, wherein the rotary seat is mounted on the mounting seat assembly in a transferring manner, a pitching arm is arranged on the rotary seat, the first boom is connected to the pitching arm, the pitching driving piece is connected between the rotary seat and the first boom, the second boom is inserted into the first boom in a sliding manner, the third boom is inserted into the second boom in a sliding manner, and the lifting piece is connected to the tail end of the third boom. The utility model can fully compress the height of the suspension arm, realize the purpose of reducing the size and the volume of the suspension arm, further reduce the length of the suspension arm in the retraction state, and solve the technical problem that the suspension arm equipped on the transportation vehicle under the coal mine in the prior art cannot be suitable for a low narrow roadway.

Inventors

  • DENG BIN
  • OUYANG XINCHI
  • BAI YU
  • HUANG ZHUAN
  • CHEN LI
  • CHEN XIAOWEN

Assignees

  • 中国铁建重工集团股份有限公司

Dates

Publication Date
20260508
Application Date
20250507

Claims (8)

  1. 1. The vehicle-mounted lifting arm for the low and narrow space of the coal mine is characterized by comprising a mounting seat assembly (1), a rotary seat (3), a pitching driving piece (4), a first arm support (5), a second arm support (6), a third arm support (7) and a lifting piece (8), wherein the rotary seat (3) is mounted on the mounting seat assembly (1) in a transshipment mode, a pitching arm is arranged on the rotary seat (3), the first arm support (5) is connected to the pitching arm, the pitching driving piece (4) is connected between the rotary seat (3) and the first arm support (5), the second arm support (6) is slidably inserted into the first arm support (5), the third arm support (7) is slidably inserted into the second arm support (6), and the lifting piece (8) is connected to the tail end of the third arm support (7).
  2. 2. The vehicle-mounted lifting arm for the low and narrow space of the coal mine according to claim 1, wherein the second arm support (6) comprises a second arm support body (2.8) and two arm support driving members (2.7), the rear end of the second arm support body (2.8) is arranged inside the first arm support (5) in a penetrating mode, and the two arm support driving members (2.7) are connected between the side face of the first arm support (5) and the side face of the front end of the second arm support body (2.8).
  3. 3. The vehicle-mounted lifting arm for the low and narrow space of the coal mine according to claim 2, wherein the third arm support (7) comprises a third arm support body (2.10) and a three arm support driving piece (2.9), the rear end of the third arm support body (2.10) is arranged in the second arm support body (2.8) in a penetrating mode, and the three arm support driving piece (2.9) is connected between the second arm support body (2.8) and the inner portion of the third arm support body (2.10).
  4. 4. The vehicle-mounted lifting arm for the low and narrow space of the coal mine according to claim 1, wherein the first arm support (5) comprises a first frame body (2.3), an opening is formed in the top of the first frame body (2.3), and a protective cover (2.4) is installed on the opening.
  5. 5. The vehicle-mounted lifting arm for the low and narrow space of the coal mine according to claim 4, wherein the front end bottom of the first frame body (2.3) is provided with a lighting assembly.
  6. 6. The vehicle-mounted lifting arm for the low and narrow space of the coal mine according to claim 1, wherein a rotary speed reducer (2) for driving the rotary seat (3) to rotate is connected between the rotary seat (3) and the mounting seat assembly (1).
  7. 7. The vehicle-mounted lifting arm for the low and narrow space of the coal mine according to claim 6, wherein the rotary speed reducer (2) is internally provided with a self-locking cycloid motor (2.2) for locking the rotary seat (3).
  8. 8. A vehicular lifting arm for a low and narrow space in a coal mine as claimed in claim 1, wherein the mount assembly (1) comprises a swing limiting device (2.1) for limiting the swing angle of the swing base (3).

Description

Vehicle-mounted lifting arm for low and narrow space of coal mine Technical Field The utility model relates to the technical field of mining machinery, in particular to a vehicle-mounted lifting arm for a low and narrow space of a coal mine. Background The net section size (width multiplied by height) of the traditional coal mine tunnel with the thin coal seam and the medium-thick coal seam is generally less than 4m multiplied by 3m, and the traditional coal mine tunnel belongs to a narrow and low tunnel, so that the underground coal mine transportation and construction equipment has the characteristics of compact structure, small volume and the like. The lifting arm for the coal mine truck is mainly carried on various transport vehicles or operation vehicles under the coal mine and is used for lifting, carrying, loading and unloading various materials, apparatuses, tools and the like, and has the outstanding advantages of flexible operation, high construction efficiency, low labor intensity and the like. Most of the existing underground various transport vehicles or operation vehicles of the coal mine are not provided with vehicle-mounted lifting arms, the conventional hoist or monorail crane is adopted for operation, the flexibility is poor, the construction efficiency is low, the labor intensity is high, and the lifting arms provided by part of the vehicles can only be used for large-scale tunnel construction due to large size and volume and cannot be suitable for low and narrow tunnels. Disclosure of utility model The utility model aims to provide a vehicle-mounted lifting arm for a low and narrow space of a coal mine, which solves the technical problem that the lifting arm equipped with a transport vehicle under the coal mine cannot be suitable for a low and narrow roadway in the prior art, and has the following specific technical scheme that: The utility model provides a vehicle lifting arm for a low and narrow space of a coal mine, which comprises a mounting seat assembly, a rotary seat, a pitching driving part, a first arm support, a second arm support, a third arm support and a lifting part, wherein the rotary seat is mounted on the mounting seat assembly in a transferring manner, a backward tilting arm is arranged on the rotary seat, the first arm support is connected to the backward tilting arm, the pitching driving part is connected between the rotary seat and the first arm support, the second arm support is slidably inserted into the first arm support, the third arm support is slidably inserted into the second arm support, and the lifting part is connected to the tail end of the third arm support. The utility model relates to a further improvement of a vehicle-mounted lifting arm for a low and narrow space of a coal mine, which is characterized in that the second arm frame comprises a second arm frame body and two arm frame driving parts, the rear end of the second arm frame body is arranged in the first arm frame in a penetrating way, and the two arm frame driving parts are connected between the side face of the first arm frame and the side face of the front end of the second arm frame body. The utility model relates to a further improvement of a vehicle-mounted lifting arm for a low and narrow space of a coal mine, which is characterized in that a third arm support comprises a third arm support body and a three arm support driving piece, wherein the rear end of the third arm support body is arranged in the second arm support body in a penetrating manner, and the three arm support driving piece is connected between the second arm support body and the inner part of the third arm support body. The utility model relates to a further improvement of a vehicle-mounted lifting arm for a low and narrow space of a coal mine. The utility model further improves the vehicle-mounted lifting arm for the low and narrow space of the coal mine, and the bottom of the front end of the first frame body is provided with a lighting component. The utility model further improves the vehicle-mounted lifting arm for the low and narrow space of the coal mine, and a rotary speed reducer for driving the rotary seat to rotate is connected between the rotary seat and the mounting seat assembly. The utility model further improves the vehicle-mounted lifting arm for the low and narrow space of the coal mine, and the self-locking cycloid motor for locking the rotary seat is arranged in the rotary speed reducer. The utility model further improves the vehicle lifting boom for the low and narrow space of the coal mine, and the mounting seat assembly comprises a rotation limiting device for limiting the rotation angle of the rotation seat. The technical scheme of the utility model has the following beneficial effects: According to the vehicle-mounted lifting arm for the low and narrow space of the coal mine, the height of the lifting arm can be fully compressed through the arrangement of the back-lying frame, the purpose of reduci