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CN-224214474-U - Erection hydraulic cylinder and adapter mechanism

CN224214474UCN 224214474 UCN224214474 UCN 224214474UCN-224214474-U

Abstract

The utility model belongs to the technical field of fluid pressure actuating mechanisms, and in particular relates to a lifting hydraulic cylinder and an adapter mechanism, wherein the lifting hydraulic cylinder comprises a cylinder body, a piston rod is inserted at one end of the cylinder body, and a lifting lug is arranged at the other end of the cylinder body and used for penetrating a shaft pin; the adapter mechanism is arranged on the lifting lug and comprises an oil pipe, wherein a first rotating shaft is arranged at one end of the oil pipe, a second rotating shaft is arranged at the other end of the oil pipe, the first rotating shaft is connected with the side wall of the lifting lug, the second rotating shaft is connected with the end face of the shaft pin, first channels communicated with the oil pipe are formed in the first rotating shaft and the second rotating shaft, and the two ends of the oil pipe are respectively connected with the lifting lug and the shaft pin in a rotating mode through the first rotating shaft and the second rotating shaft by the lifting hydraulic cylinder, so that the oil pipe can have two rotation degrees of freedom and two translation degrees of freedom when the oil pipe acts along with the lifting hydraulic cylinder, and the influence on use caused by bending of stress is avoided.

Inventors

  • HU GUOXIANG
  • WANG HAIXUAN
  • MAO SONG
  • TAN BO
  • ZHANG YI
  • XU JIAN
  • YE JING

Assignees

  • 江苏恒立液压股份有限公司

Dates

Publication Date
20260508
Application Date
20250515

Claims (10)

  1. 1. An erection hydraulic cylinder, comprising: A piston rod (11) is inserted into one end of the cylinder body (1), a lifting lug (12) is arranged at the other end of the cylinder body, and the lifting lug (12) is used for penetrating a shaft pin (13); The adapter mechanism (2) is arranged on the lifting lug (12) and comprises an oil pipe (21), wherein one end of the oil pipe (21) is provided with a first rotating shaft (22), and the other end of the oil pipe is provided with a second rotating shaft (23); The first rotating shaft (22) is connected with the side wall of the lifting lug (12), and the second rotating shaft (23) is connected with the end face of the shaft pin (13); A first channel (221) communicated with the oil pipe (21) is formed in each of the first rotating shaft (22) and the second rotating shaft (23); Wherein, during erection of the cylinder (1), the oil pipe (21) is adapted to rotate around the shaft pin (13) following the lifting lug (12), while the oil pipe (21) is adapted to rotate around the second rotation axis (23).
  2. 2. The erection hydraulic cylinder of claim 1, wherein, Both ends of the oil pipe (21) are provided with rotating inner holes (211), wherein The first rotating shaft (22) and the second rotating shaft (23) are respectively matched with a rotating inner hole (211) of the oil pipe (21) through sealing elements.
  3. 3. The erection hydraulic cylinder of claim 2, One end of the first rotating shaft (22) and one end of the second rotating shaft (23) are respectively provided with a protruding portion (222), and the other end of the first rotating shaft is respectively provided with a check ring (223).
  4. 4. The erection hydraulic cylinder of claim 3, Oil holes (224) are formed in the side walls of the first rotating shaft (22) and the second rotating shaft (23); Wherein the oil passing hole (224) is suitable for communicating the first channel (221) and the oil pipe (21).
  5. 5. The erection hydraulic cylinder of claim 1, wherein, The first channel (221) of the first rotation shaft (22) is linear.
  6. 6. The erection hydraulic cylinder of claim 1, wherein, The first channel (221) of the second rotation shaft (23) is in a right angle shape.
  7. 7. The erection hydraulic cylinder of claim 3, The distance between the protruding part (222) and the check ring (223) is L, the length of the rotating inner hole (211) is H, and L is larger than H.
  8. 8. An adapter mechanism, comprising: An oil pipe (21); A first rotary shaft (22) which is matched with one end of the oil pipe (21) through a sealing piece; A second rotary shaft (23) which is matched with the other end of the oil pipe (21) through a sealing piece; The first rotating shaft (22) is connected with the side wall of the lifting lug (12), and the second rotating shaft (23) is connected with the end face of the shaft pin (13); A first channel (221) communicated with the oil pipe (21) is formed in each of the first rotating shaft (22) and the second rotating shaft (23) so as to form an oil duct (24); Wherein, during erection of the cylinder (1), the oil pipe (21) is adapted to rotate around the shaft pin (13) following the lifting lug (12), while the oil pipe (21) is adapted to rotate around the second rotation axis (23).
  9. 9. The adapter mechanism of claim 8, wherein, Both ends of the oil pipe (21) are provided with rotating inner holes (211), wherein The first rotating shaft (22) and the second rotating shaft (23) are respectively matched with a rotating inner hole (211) of the oil pipe (21) through sealing elements so as to realize free rotation.
  10. 10. The adapter mechanism of claim 9, wherein, One end of the first rotating shaft (22) and one end of the second rotating shaft (23) are respectively provided with a bulge (222), and the other end of the first rotating shaft is respectively provided with a check ring (223); the distance between the bulge (222) and the check ring (223) is L, and the length of the rotating inner hole (211) is H; Wherein L is greater than H.

Description

Erection hydraulic cylinder and adapter mechanism Technical Field The utility model belongs to the technical field of fluid pressure actuating mechanisms, and particularly relates to an erection hydraulic cylinder and an adapter mechanism. Background In the process of the erection action of the erection hydraulic cylinder, the hydraulic pipeline on the lifting lug rotates around the shaft pin along with the action of the hydraulic cylinder, so that the hydraulic pipeline is bent. In the above scenario, if the hydraulic pipeline is rigidly connected by using a steel oil pipe, the oil pipe is broken, and if a hose is adopted, the hose is bent and fails. Therefore, how to solve the technical problem of bending failure in the process of lifting the hydraulic cylinder of the hydraulic pipeline on the lifting lug of the hydraulic cylinder is needed to be solved by the person skilled in the art. It should be noted that the above information disclosed in this background section is only for understanding the background of the inventive concept and therefore the above description is not to be construed as constituting prior art information. Disclosure of utility model The embodiment of the disclosure at least provides a lifting hydraulic cylinder and an adapter mechanism. According to the first aspect, the embodiment of the disclosure provides a lifting hydraulic cylinder, which comprises a cylinder body, wherein a piston rod is inserted into one end of the cylinder body, a lifting lug is arranged at the other end of the cylinder body, the lifting lug is used for penetrating a shaft pin, an adapter mechanism is arranged on the lifting lug, the adapter mechanism comprises an oil pipe, a first rotating shaft is arranged at one end of the oil pipe, a second rotating shaft is arranged at the other end of the oil pipe, the first rotating shaft is connected with the side wall of the lifting lug, the second rotating shaft is connected with the end face of the shaft pin, first channels communicated with the oil pipe are formed in the first rotating shaft and the second rotating shaft, the oil pipe is suitable for rotating around the shaft pin along with the lifting lug in the lifting process of the cylinder body, and meanwhile the oil pipe is suitable for rotating around the second rotating shaft. In an alternative embodiment, both ends of the oil pipe are provided with rotating inner holes, wherein the first rotating shaft and the second rotating shaft are respectively matched with the rotating inner holes of the oil pipe through sealing elements. In an alternative embodiment, one end of the first rotating shaft and one end of the second rotating shaft are respectively provided with a protruding portion, and the other end of the first rotating shaft and the other end of the second rotating shaft are respectively provided with a check ring. In an alternative embodiment, the side walls of the first rotating shaft and the second rotating shaft are respectively provided with an oil passing hole, wherein the oil passing holes are suitable for communicating the first channel and the oil pipe. In an alternative embodiment, the first channel of the first rotation shaft is linear. In an alternative embodiment, the first channel of the second rotation shaft is of a right angle type. In an alternative embodiment, the distance between the boss and the retainer ring is L, and the length of the rotating inner bore is H, where L is greater than H. The second aspect of the invention further provides an adapter mechanism, which comprises an oil pipe, a first rotating shaft matched with one end of the oil pipe through a sealing element, a second rotating shaft matched with the other end of the oil pipe through a sealing element, wherein the first rotating shaft is connected with the side wall of a lifting lug, the second rotating shaft is connected with the end face of a shaft pin, first channels communicated with the oil pipe are formed in the first rotating shaft and the second rotating shaft to form an oil channel, and the oil pipe is suitable for rotating around the shaft pin along with the lifting lug in the process of erecting a cylinder body and is suitable for rotating around the second rotating shaft. In an alternative embodiment, both ends of the oil pipe are provided with rotating inner holes, wherein the first rotating shaft and the second rotating shaft are respectively matched with the rotating inner holes of the oil pipe through sealing elements so as to realize free rotation. In an alternative embodiment, one end of the first rotating shaft and one end of the second rotating shaft are respectively provided with a protruding portion, the other end of the first rotating shaft and the other end of the second rotating shaft are respectively provided with a retaining ring, the distance between the protruding portion and each retaining ring is L, the length of the rotating inner hole is H, and L is larger than H. The lifting hydrau