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CN-224211131-U - Pull rod type four-column hydraulic combined trailer bogie

CN224211131UCN 224211131 UCN224211131 UCN 224211131UCN-224211131-U

Abstract

The utility model discloses a pull rod type four-column hydraulic combined trailer bogie, which belongs to the technical field of trailer bogies and comprises a traction beam, an upper steering support and a lower steering support, wherein the upper steering support and the lower steering support are hinged to the traction beam, a transverse lock pin structure is arranged on the lower steering support and is used for transversely connecting and locking the upper steering support and the lower steering support, vertical positioning pins are vertically inserted and fixed on the upper steering support and the lower steering support, the vertical positioning pins are used for vertically connecting and locking the upper steering support and the lower steering support, and the transverse and vertical connection locking is respectively carried out between the upper steering support and the lower steering support through the transverse lock pin structure and the vertical positioning pins, so that the connection is more stable.

Inventors

  • HUANG QINWEN
  • WEN AO
  • XIE QINGLONG

Assignees

  • 湖南电力物流服务有限责任公司

Dates

Publication Date
20260508
Application Date
20250630

Claims (7)

  1. 1. A pull rod type four-column hydraulic combined trailer bogie is characterized by comprising a traction beam (1), an upper steering support (2) and a lower steering support (3) which are hinged to the traction beam (1), wherein a transverse lock pin structure (4) is arranged on the lower steering support (3), the transverse lock pin structure (4) is used for transversely connecting and locking the upper steering support (2) and the lower steering support (3), vertical positioning pins (5) are vertically inserted and fixed on the upper steering support (2) and the lower steering support (3), and the vertical positioning pins (5) are used for vertically connecting and locking the upper steering support (2) and the lower steering support (3).
  2. 2. A pull rod type four-column hydraulic combined trailer bogie as claimed in claim 1, wherein the transverse lock pin structure (4) comprises a taper pin sleeve (41) fixed on the lower steering support (3), a taper pin (42) is arranged in the taper pin sleeve (41) in a sliding mode, a bolt column (43) is arranged in the taper pin sleeve (41), one end of the bolt column (43) is matched with a shaft hole of the taper pin sleeve (41), and the other end of the bolt column is matched with the taper pin (42) in a threaded mode.
  3. 3. A pull rod type four-column hydraulic combined trailer bogie as claimed in claim 2, wherein a limit screw (411) is arranged on the taper pin sleeve (41), a limit groove (421) is formed on the taper pin (42), and the bottom end of the limit screw (411) extends into the limit groove (421) and is used for limiting the rotation of the taper pin (42).
  4. 4. A pull-rod type four-column hydraulic combination trailer bogie as claimed in claim 3, wherein one end of the bolt column (43) matched with the shaft hole of the taper pin sleeve (41) extends out of the taper pin sleeve (41), and a knob nut (44) is arranged on the end in a threaded fit manner.
  5. 5. A pull rod type four-column hydraulic combined trailer bogie as claimed in claim 4, characterized in that a stop plate (45) is arranged on the lower steering support (3), a through hole which is matched with the outline of the knob nut (44) is formed at the upper end of the stop plate (45), and the lower end of the stop plate is sleeved on a pin (46) fixed on the lower steering support (3).
  6. 6. A pull rod type four-column hydraulic combined trailer bogie as set forth in claim 1, wherein a column through hole (21) is formed in the upper steering support (2), a cone through hole (31) is formed in the lower steering support (3), the vertical positioning pin (5) comprises a column portion (51) which is matched with the column through hole (21) and a cone portion (52) which is matched with the cone through hole (31), the column portion (51) is arranged in the column through hole (21) in a penetrating mode, and the cone portion (52) is arranged in the cone through hole (31) in a penetrating mode.
  7. 7. A pull rod type four-column hydraulic combined trailer bogie as claimed in claim 6, wherein the bottom of the vertical locating pin (5) is provided with a threaded portion (53), and the threaded portion (53) is threaded with a lock nut (54) after penetrating out of the conical through hole (31).

Description

Pull rod type four-column hydraulic combined trailer bogie Technical Field The utility model belongs to the technical field of trailer bogies, and particularly relates to a pull rod type four-column hydraulic combined trailer bogie. Background The hydraulic full trailer is a special vehicle for transporting undetachable large cargoes such as a large transformer and the like, is generally matched with a full-trailer traction vehicle for use, the traction vehicle pulls the hydraulic full trailer through a traction rod, the traction force of the traction vehicle is transmitted to the hydraulic full trailer through the traction rod, and when the hydraulic full trailer runs on a straight road, the hydraulic full trailer, the traction rod and the hydraulic full trailer are in line, and other additional operations are not needed except for the traction vehicle. When turning or driving on a curve, the steering of the hydraulic full trailer is realized only by opening the hydraulic power station and operating the steering cylinder of the hydraulic full trailer. Therefore, the applicant applied for a steering locking device (patent number ZL 202321601534.0) of a hydraulic full trailer, the device can be detachably connected with an upper steering support through arranging a fixed taper shaft to penetrate through a seat body, when the device passes through a curve, a tractor corner is transmitted to a lower steering support through a traction rod, the lower steering support drives the upper steering support to synchronously steer through the fixed taper shaft, and the upper steering support drives a steering support of a steering cylinder of the hydraulic full trailer to rotate through a steering front pull rod, so that the hydraulic full trailer can steer along with the tractor. However, in the using process of the device, the upper steering support and the lower steering support are connected and locked only through the fixed taper shaft, the fixed taper shaft is installed in the seat body of the lower steering support in a threaded mode, the fixed taper shaft and the seat body are loosened due to the fact that the fixed taper shaft and the upper steering support are in clearance with each other due to the fact that tolerance exists between the fixed taper shaft and the screw thread, and when the traction rod drives the lower steering support to rotate due to the fact that the shaft hole clearance exists between the fixed taper shaft and the upper steering support and the lower steering support, the upper steering support cannot steer synchronously, and the reaction speed is not sensitive enough. Disclosure of utility model In view of the above, the utility model aims to overcome the defects in the prior art, and provides a pull rod type four-column hydraulic combined trailer bogie, which comprises the following technical scheme: The steering device comprises a traction beam, an upper steering support and a lower steering support, wherein the upper steering support and the lower steering support are hinged to the traction beam, a transverse lock pin structure is arranged on the lower steering support and used for transversely connecting and locking the upper steering support and the lower steering support, vertical positioning pins are vertically inserted and fixed on the upper steering support and the lower steering support, and the vertical positioning pins are used for vertically connecting and locking the upper steering support and the lower steering support. The transverse lock pin structure comprises a taper pin sleeve fixed on the lower steering support, a taper pin is slidably arranged in the taper pin sleeve, a bolt column is arranged in the taper pin sleeve, one end of the bolt column is matched with a shaft hole of the taper pin sleeve, and the other end of the bolt column is in threaded fit with the taper pin. The taper pin sleeve is provided with a limit screw, the taper pin is provided with a limit groove, and the bottom end of the limit screw extends into the limit groove and is used for limiting the taper pin to rotate. One end of the bolt column, which is matched with the shaft hole of the taper pin sleeve, extends out of the taper pin sleeve, and a knob nut is arranged on the end in a threaded fit manner. The lower steering support is provided with a stop plate, the upper end of the stop plate is provided with a through hole which is matched with the outline of the knob nut, and the lower end of the stop plate is sleeved on a stud fixed on the lower steering support. The upper steering support is provided with a column through hole, the lower steering support is provided with a cone through hole, the vertical positioning pin comprises a column part matched with the column through hole and a cone part matched with the cone through hole, the column part is arranged in the column through hole in a penetrating mode, and the cone part is arranged in the cone through hole in a penetrating mode. The botto