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CN-224214496-U - Steering cylinder with stepless stroke adjustment, steering system and vehicle

CN224214496UCN 224214496 UCN224214496 UCN 224214496UCN-224214496-U

Abstract

The utility model belongs to the technical field of steering cylinders, and particularly relates to a steering cylinder with stepless stroke adjustment, a steering system and a vehicle, wherein the steering cylinder with stepless stroke adjustment comprises a cylinder body, a piston rod is movably arranged in the cylinder body, two ends of the piston rod extend out of the cylinder body, and two ends of the piston rod are respectively provided with an adjusting mechanism for adjusting the length of the two ends of the piston rod extending out of the cylinder body through the adjusting mechanisms, wherein the adjusting mechanism comprises a mounting block sleeved at the end part of the piston rod, an adjusting ring is connected to the outer wall of the mounting block in a threaded manner, the adjusting ring moves axially along the piston rod on the mounting block, and is adjusted to extend out of the mounting block and close to the cylinder body, so that the length of the end part of the piston rod extending out of the cylinder body is adjusted, and further the rotation of the rotating stroke is converted into the linear stroke by using threads, and the length of the two ends of the piston rod extending out of the cylinder body is adjusted, so that the steering stroke of a tractor can be limited.

Inventors

  • HU GUOXIANG
  • YU ZHIYUAN
  • YANG ZHIQIANG
  • DUAN XIANYAN
  • TANG CHENGJIAN
  • 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. The utility model provides a steering cylinder of stepless regulation of stroke which characterized in that includes: a cylinder (1) in which a piston rod (2) is disposed; The two ends of the piston rod (2) extend out of the cylinder body (1), and the two ends of the piston rod (2) are provided with adjusting mechanisms (3) so as to adjust the length of the two ends of the piston rod (2) extending out of the cylinder body (1) through the adjusting mechanisms (3), wherein An adjustment mechanism (3) comprising: The mounting block (31) is sleeved at the end part of the piston rod (2), and an adjusting ring (32) is connected to the outer wall of the mounting block (31) in a threaded manner; Wherein the adjusting ring (32) is configured to move axially along the piston rod (2) on the mounting block (31), the adjusting ring (32) being adjusted to extend out of the mounting block (31) and close to the cylinder (1) to adjust the length of the end of the piston rod (2) extending out of the cylinder (1).
  2. 2. The stroke infinitely adjustable steering cylinder of claim 1, wherein: The adjusting mechanism (3) further comprises a limiting ring (34) and a locking ring; The limiting rings (33) are sleeved on the corresponding mounting blocks (31), the locking rings (34) are sleeved on the mounting blocks (31), and the locking rings (34) are in threaded connection with the mounting blocks (31); The locking ring (34) is arranged between the limiting ring (33) and the adjusting ring (32); the locking ring (34) abuts the adjustment ring (32).
  3. 3. The stroke infinitely adjustable steering cylinder of claim 1, wherein: a dust cover (4) is sleeved on the part of the piston rod (2) extending out of the cylinder body (1); One end of the dust cover (4) is connected with the cylinder body (1), the other end of the dust cover (4) is connected with a limiting ring (33) in the adjusting mechanism (3), and the dust cover (4) stretches along with the piston rod (2) when the piston rod moves.
  4. 4. The stroke infinitely adjustable steering cylinder of claim 1, wherein: Guide sleeves (11) are arranged on two end faces of the cylinder body (1), and the end parts of the piston rods (2) penetrate through the corresponding guide sleeves (11) and then extend out of the cylinder body (1).
  5. 5. The utility model provides a steering cylinder of stepless regulation of stroke which characterized in that includes: the piston rod (2), the two ends of the piston rod (2) are provided with mounting blocks (31), the mounting blocks (31) are connected with an adjusting ring (32) and a locking ring (34) in a threaded manner, wherein The adjusting ring (32) is closer to the center of the piston rod (2) than the locking ring (34), the adjusting ring (32) is adjusted to extend out of the mounting block (31) and close to the cylinder body (1) so as to adjust the strokes of the two ends of the piston rod (2), and the locking ring (34) is propped against the adjusting ring (32) after the adjusting ring (32) moves.
  6. 6. The stroke infinitely adjustable steering cylinder of claim 5, wherein: the mounting block (31) is provided with a limiting ring (33), and the locking ring (34) is positioned between the adjusting ring (32) and the limiting ring (33).
  7. 7. The stroke infinitely adjustable steering cylinder of claim 5, wherein: The piston rod (2) is arranged in the cylinder body (1) and moves in the cylinder body (1), two ends of the piston rod (2) extend out of the cylinder body (1), and the mounting block (31) is positioned outside the cylinder body (1); Guide sleeves (11) are arranged on two end faces of the cylinder body (1), and the end parts of the piston rods (2) penetrate through the corresponding guide sleeves (11) and then extend out of the cylinder body (1).
  8. 8. The stroke infinitely adjustable steering cylinder of claim 7, wherein: A dust cover (4) is sleeved on the part of the piston rod (2) extending out of the cylinder body (1); One end of the dust cover (4) is connected with the cylinder body (1), the other end of the dust cover (4) is connected with a limiting ring (33) in the adjusting mechanism (3), and the dust cover (4) stretches along with the piston rod (2) when the piston rod moves.
  9. 9. A steering system, comprising: the steering cylinder according to any one of claims 1 to 8.
  10. 10. A vehicle, characterized by comprising: the steering cylinder according to any one of claims 1 to 8.

Description

Steering cylinder with stepless stroke adjustment, steering system and vehicle Technical Field The utility model belongs to the technical field of steering cylinders, and particularly relates to a steering cylinder with stepless stroke adjustment, a steering system and a vehicle. Background At present, when a tractor is used for farmland tillage, the tractor is generally manually driven to work, if the number of farmland acres is particularly large, a large number of drivers need to be hired for tillage, if a computer automatically recognizes that the tractor is driven for tillage, the tractor is generally controlled by the computer when steering is needed, at this time, the angle needs to be controlled by a sensor and an electric signal, the sensor and the electric signal are quite accurate, if the tractor is required to be manually driven in advance for debugging under different scenes, parameters are set, and the steering angle cannot be well mastered, and the accuracy cannot be realized. The current approach is to use shim stacks of different thickness for tractor steering angle control. According to the method, gasket schemes with different thicknesses are needed, the thicknesses of the gaskets under different angles are obtained through analog calculation manually in the early stage, so that the energy of a designer is wasted, the steering angle of the tractor is limited by installing the gaskets in the steering cylinder of the tractor, and the steering angle of the tractor is controlled according to the thicknesses and the number of the different gaskets. In actual use, the pad of the tractor needs to be continuously disassembled and assembled, and meanwhile, a spare part library is also needed to meet the requirements of using and storing the pad. And a large amount of pollutants exist in farmland environment, so that corrosion of gaskets is unavoidable. This affects the thickness and thus the steering angle less precisely. Therefore, since the steering angle of the tractor needs a plurality of gaskets with different thicknesses and numbers when the steering angle of the tractor is adjusted, the technical problem that the steering angle of the tractor cannot be accurately adjusted when the gaskets are corroded and the like is caused, and the steering cylinder, the steering system and the vehicle with stepless stroke adjustment are required to be designed. 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 steering cylinder with stepless stroke adjustment, a steering system and a vehicle, so as to solve the technical problem that the steering angle of a tractor cannot be accurately adjusted when a gasket is corroded and other anomalies occur. In a first aspect, an embodiment of the present disclosure provides a steering cylinder with stepless adjustment of stroke, including: A cylinder body, the inside of which is movably provided with a piston rod; the two ends of the piston rod extend out of the cylinder body, and the two ends of the piston rod are provided with adjusting mechanisms so as to adjust the length of the two ends of the piston rod extending out of the cylinder body through the adjusting mechanisms, wherein the adjusting mechanisms are used for adjusting the length of the two ends of the piston rod extending out of the cylinder body An adjustment mechanism, comprising: The sleeve is arranged on the mounting block at the end part of the piston rod, the outer wall of the mounting block is connected with an adjusting ring in a threaded manner, the adjusting ring axially moves on the mounting block along the piston rod, and the adjusting ring is adjusted to extend out of the mounting block and close to the cylinder body so as to adjust the length of the end part of the piston rod extending out of the cylinder body. In an alternative embodiment, the adjusting mechanism further comprises a limiting ring and a locking ring; The limiting rings are sleeved on the corresponding mounting blocks, the locking rings are sleeved on the mounting blocks, and the locking rings are in threaded connection with the mounting blocks; the locking ring is arranged between the limiting ring and the adjusting ring; The locking ring abuts against the adjusting ring. In an alternative embodiment, the part of the piston rod extending out of the cylinder body is sleeved with a dust cover, one end of the dust cover is connected with the cylinder body, the other end of the dust cover is connected with a limiting ring in the adjusting mechanism, and the dust cover stretches along with the piston rod when the piston rod moves. In an alternative embodiment, guide sleeves are arranged on two end faces of the cylinder body, and the end parts of the pist