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CN-224209994-U - Cantilever crane steering limiting mechanism, cantilever crane and swift current mine pull throughs

CN224209994UCN 224209994 UCN224209994 UCN 224209994UCN-224209994-U

Abstract

The utility model discloses a boom steering limiting mechanism, a boom and a mine dredging device in the technical field of mining apparatuses, wherein the limiting mechanism comprises a rotary supporting part which is used for connecting a front boom and providing steering, the non-rotating end of the rotary supporting part is provided with a pair of limit switches, the front arm support is provided with a limit switch triggering piece, and the two limit switches are respectively positioned at two ends of a moving path of the limit switch triggering piece. The limit switch trigger piece is arranged on the front arm support, and the pair of limit switches are arranged on the rotation path of the limit switch, so that the angle of the front arm support is not deviated too much compared with the angle of the rear arm support in the rotation process of the front arm support relative to the rear arm support, the stability is facilitated, the rotation of the rotation support part is controlled to stop through the contact of the limit switches, the impact force is reduced, and the stable operation of the rotation support part is ensured.

Inventors

  • SUN SHENGXI
  • SUN CHENGFANG
  • WANG RONGHUI
  • LI JINYI
  • Shi Jiebao

Assignees

  • 安徽佳乐建设机械有限公司

Dates

Publication Date
20260508
Application Date
20260206

Claims (7)

  1. 1. The utility model provides a cantilever crane turns to stop gear, its characterized in that, including being used for connecting preceding cantilever crane (1) and providing gyration supporting part (4) that turn to, the non-rotating end of gyration supporting part (4) is provided with a pair of limit switch (9), be provided with limit switch trigger piece (3) on preceding cantilever crane (1), two limit switch (9) are located the travel path both ends of limit switch trigger piece (3) respectively.
  2. 2. The boom steering limiting mechanism according to claim 1, wherein the rotating end of the rotary supporting portion (4) is further provided with a boom mounting seat (2) for connecting the front boom (1), and the axial direction of the rotary supporting portion (4) is perpendicular to the length direction of the front boom (1).
  3. 3. The boom steering limiting mechanism according to claim 1, wherein the non-rotating end of the slewing bearing (4) is further provided with a slewing bearing mounting seat (5).
  4. 4. A boom steering limit mechanism according to claim 3, wherein a swing cylinder (6) is arranged at the bottom of the slewing support mounting seat (5) and is connected with a rotating end of the swing cylinder (6), and a connecting piece (7) for being mounted with a rear boom is arranged on a non-rotating end of the swing cylinder (6).
  5. 5. A boom steering limit mechanism according to claim 3, characterized in that the swivel support mounting base (5) is provided with a mounting plate (8) for connecting a limit switch (9).
  6. 6. The arm support is characterized by comprising a rear arm support and a front arm support (1), wherein the rear arm support and the front arm support (1) are connected through the arm support steering limiting mechanism in any one of claims 1-5.
  7. 7. The dredging device for the mine shaft is characterized by comprising a transport vehicle, wherein the arm support of claim 6 is arranged on the transport vehicle, the transport vehicle is connected with the rear arm support, and a gripper is arranged on the front arm support (1) and used for grabbing a bamboo pole to throw in explosive.

Description

Cantilever crane steering limiting mechanism, cantilever crane and swift current mine pull throughs Technical Field The utility model relates to the field of mining apparatuses, in particular to an arm support steering limiting mechanism, an arm support and a mine dredging device. Background The mine is a roadway in which ores are slid downwards by a natural fall, and the ores are often blocked due to the shape of the ores. At present, common methods for treating the blockage of the mine include a mechanical prying method, a drilling blasting method, a bamboo pole cantilever explosive blasting method, a hydrogen balloon hanging explosive blasting method, a mine rocket projectile and the like. The bamboo rod cantilever explosive charge blasting method is high in efficiency, as disclosed in application number 202510866337.9, the bamboo rod with explosive is extended to a blasting point for blasting by adopting a transport vehicle with a mechanical arm, the mechanical arm is required to be bent and extended due to complex environment of a mine, the mechanical arm has the capability of bypassing obstacles, the mechanical arm is designed into two sections, the mechanical arm comprises a front arm support and a rear arm support, rollover is easily caused when the rotation angle of the front arm support is large, a rotation angle limiting structure is arranged, the common limiting structure is directly stressed, and the problems of abrasion, motor burnout and the like are easily caused due to direct stress blocking under the condition of large rotation force. Disclosure of Invention The utility model aims to provide a boom steering limiting mechanism, a boom and a mine dredging device, which solve the problem that the existing rotary limiting structure is high in stress. The utility model realizes the above purpose through the following technical scheme: The utility model provides a cantilever crane turns to stop gear, includes the gyration supporting part that is used for connecting the cantilever crane and provides to turn to, the non-rotating end of gyration supporting part is provided with a pair of limit switch, be provided with limit switch trigger piece on the cantilever crane, two limit switch are located the travel path both ends of limit switch trigger piece respectively. As a preferable scheme of the utility model, the rotating end of the rotary support part is also provided with the cantilever crane mounting seat for connecting the front cantilever crane, and the axial direction of the rotary support part is vertical to the length direction of the front cantilever crane. As a preferable scheme of the utility model, the non-rotating end of the rotary support part is also provided with a rotary support mounting seat, and the scheme is convenient to mount with the rear arm support through the rotary support mounting seat. As a preferable scheme of the utility model, the swing cylinder is arranged at the bottom of the rotary support mounting seat and is connected with the rotating end of the swing cylinder, and the connecting piece for being mounted with the rear arm support is arranged on the non-rotating end of the swing cylinder. As a preferable scheme of the utility model, the rotary support mounting seat is provided with the mounting plate for connecting the limit switch, and the scheme enables the limit switch to extend to the path of the limit switch trigger piece through the mounting plate. In order to apply the boom steering limiting mechanism, the utility model also provides a boom which comprises a rear boom and a front boom, wherein the rear boom and the front boom are connected through the boom steering limiting mechanism. In order to apply the arm support, the utility model also provides a dredging device for the mine, which comprises a transport vehicle, wherein the arm support is arranged on the transport vehicle, the transport vehicle is connected with the rear arm support, and a gripper is arranged on the front arm support and used for grabbing a bamboo pole to throw in explosive. The utility model has the beneficial effects that the limit switch trigger piece is arranged on the front arm support, and the pair of limit switches are arranged on the rotation path of the limit switch, so that the angle of the front arm support is not excessively deviated from the angle of the rear arm support in the rotation process of the front arm support relative to the rear arm support, the stability is facilitated, and the rotation of the rotation support part is controlled to stop through the contact of the limit switches, the impact force is reduced, and the stable operation of the rotation support part is ensured. Drawings FIG. 1 is a left side isometric view of the present utility model; FIG. 2 is a right side isometric view of the present utility model; FIG. 3 is a front view of the present utility model; FIG. 4 is a side view of the present utility model; The device comprises a front arm support,