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CN-121976999-A - Hydraulic oil cooling device in hydraulic station

CN121976999ACN 121976999 ACN121976999 ACN 121976999ACN-121976999-A

Abstract

The invention provides a hydraulic oil cooling device in a hydraulic station, and belongs to the technical field of hydraulic systems. The device comprises an oil pipe, a fin assembly and a toothed ring which is rotatably arranged. The oil pipe is an annular hollow pipe body, a penetrating heat dissipation channel for air flow to pass through is formed in the axis of the oil pipe, a plurality of independent cooling cavities are formed in the oil pipe, the cooling cavities are uniformly distributed along the circumferential direction of the oil pipe, and a communication channel is formed between every two adjacent cooling cavities. The fin assembly is movably connected with the oil passing pipe, the included angle between the fin assembly and the side wall of the oil passing pipe is adjustable, two groups of fin assemblies are respectively an outer fin assembly and an inner fin assembly, the outer fin assembly and the inner fin assembly are respectively connected with a first gear and a second gear, and the first gear and the second gear are meshed with the toothed ring for transmission. The invention particularly provides a hydraulic oil cooling device in a hydraulic station, which meets the requirement of cooling intensity adjustment through two groups of fin assemblies with adjustable angles.

Inventors

  • ZHAO JIYANG
  • WU XING
  • SUN LEI

Assignees

  • 江苏海迪威液压有限公司

Dates

Publication Date
20260505
Application Date
20260324

Claims (10)

  1. 1. A hydraulic oil cooling device in a hydraulic station, comprising: The cooling device comprises an oil pipe (1), a plurality of independent cooling cavities (3) and a communication channel (4) arranged between two adjacent cooling cavities (3), wherein a penetrating heat dissipation channel (2) for air flow to pass through is formed in the oil pipe (1); The two groups of fin assemblies are respectively an outer fin assembly (5) and an inner fin assembly (6), the outer fin assembly (5) and the inner fin assembly (6) are respectively and movably connected with the outer wall and the inner wall of the oil passing pipe (1), the included angles between the two groups of fin assemblies and the side wall of the oil passing pipe (1) are adjustable, and when the fin assemblies are attached to the side wall of the oil passing pipe (1), the fin assemblies are combined with cooling liquid to carry out intensified cooling on hydraulic oil in the oil passing pipe (1); The gear ring (7) that rotates and set up, outer fin subassembly (5) and interior fin subassembly (6) are connected with first gear (8) and second gear (9) respectively, first gear (8) and second gear (9) all with gear ring (7) meshing transmission, just the rotation opposite direction of first gear (8) and second gear (9) to drive outer fin subassembly (5) and interior fin subassembly (6) are close to simultaneously or keep away from oil pipe (1) lateral wall with opposite direction.
  2. 2. The hydraulic oil cooling device in a hydraulic station according to claim 1, wherein the fin assembly comprises a rotating shaft (10), a heat conducting plate (11) and fins (12), the rotating shaft (10) is rotationally arranged on the oil passing pipe (1), the heat conducting plate (11) is fixedly arranged on the rotating shaft (10), one side, close to the oil passing pipe (1), of the heat conducting plate (11) is an arc-shaped surface matched with the side wall of the oil passing pipe (1), the fins (12) are vertically provided with a plurality of groups on the heat conducting plate (11), and the heat radiating fins (12) of the plurality of groups are uniformly distributed along the length direction of the heat conducting plate (11).
  3. 3. The hydraulic oil cooling device in a hydraulic station according to claim 2, wherein the outer fin assembly (5) is circumferentially provided with a plurality of groups on the outer side of the oil passing pipe (1), the inner fin assembly (6) is circumferentially provided with a plurality of groups on the inner side of the oil passing pipe (1), the first gear (8) is fixedly arranged on a rotating shaft (10) of the outer fin assembly (5), the first gear (8) is externally meshed with the toothed ring (7), the oil passing pipe (1) is rotationally provided with a transmission shaft (13), the second gear (9) is fixedly arranged on the transmission shaft (13), the second gear (9) is internally meshed with the toothed ring (7), the transmission shaft (13) is correspondingly provided with a belt pulley on the rotating shaft (10) of the inner fin assembly (6), and the corresponding belt pulleys are connected through a belt (14).
  4. 4. A hydraulic oil cooling device in a hydraulic station according to claim 3, further comprising a bracket (27), wherein the toothed ring (7) is rotatably arranged on the bracket (27), a driving motor (15) is arranged on the bracket (27), a driving gear (16) is arranged on an output shaft of the driving motor (15), and the driving gear (16) is meshed with the toothed ring (7).
  5. 5. The hydraulic oil cooling device in the hydraulic station according to claim 1, wherein two closed oil passing cavities are formed in the oil passing pipe (1) at two radial sides of the cooling cavity (3), the oil passing cavity positioned at the outer side of the cooling cavity (3) is an outer oil passing cavity (17), the oil passing cavity positioned at the inner side of the cooling cavity (3) is an inner oil passing cavity (18), the two oil passing cavities are communicated through a communication channel (4), and the hydraulic oil inlet pipe (19) and the hydraulic oil outlet pipe (20) are connected with two ends of the oil passing cavity.
  6. 6. The hydraulic oil cooling device in a hydraulic station according to claim 5, wherein one of the hydraulic oil inlet pipe (19) and the hydraulic oil outlet pipe (20) is in sealing connection with the outer oil passing cavity (17), the other one of the hydraulic oil inlet pipe and the hydraulic oil outlet pipe is in sealing connection with the inner oil passing cavity (18), and two ends of the cooling cavity (3) are respectively in sealing connection with a cooling liquid inlet pipe (23) and a cooling liquid outlet pipe (24).
  7. 7. The hydraulic oil cooling device in a hydraulic station according to claim 6, wherein a temperature sensor (21) is arranged on the hydraulic oil outlet pipe (20) and is used for monitoring the oil temperature of the cooled hydraulic oil, and the temperature sensor (21) is electrically connected with the driving motor (15) through a controller.
  8. 8. The hydraulic oil cooling device in a hydraulic station according to claim 5, wherein a spiral oil guiding groove (22) is arranged on the side wall of the oil passing cavity.
  9. 9. The hydraulic oil cooling device in a hydraulic station according to claim 1, wherein a fan (25) is arranged on one group of the brackets (27), a heat dissipation groove (26) is arranged on the other group of the brackets (27), and an air outlet of the fan (25) and the heat dissipation groove (26) are corresponding to the heat dissipation channel (2).
  10. 10. The hydraulic oil cooling device in a hydraulic station according to claim 6, wherein the hydraulic oil inlet pipe (19), the hydraulic oil outlet pipe (20), the cooling liquid inlet pipe (23) and the cooling liquid outlet pipe (24) penetrate through the corresponding brackets (27) respectively and penetrate through the inside of the toothed ring (7).

Description

Hydraulic oil cooling device in hydraulic station Technical Field The invention belongs to the technical field of hydraulic systems, and particularly relates to a hydraulic oil cooling device in a hydraulic station. Background The hydraulic oil is used as a core medium for realizing power transmission, mechanism lubrication and sealing protection of the hydraulic station, and the working temperature directly determines the operation stability, transmission efficiency and service life of core components of the hydraulic system, so that the hydraulic oil is a key index for guaranteeing the reliable operation of the hydraulic station. Industry practice and technical research show that the optimal working temperature interval of the hydraulic oil is 30-55 ℃, and the hydraulic oil in the interval can simultaneously achieve proper viscosity and chemical stability, so that the problems of pump valve abrasion, energy consumption increase and the like caused by insufficient viscosity can be reduced, meanwhile, the problems of oxidative deterioration of oil liquid at high temperature, additive failure or risks of oil liquid condensation, starting resistance sudden rise and the like can be effectively inhibited, and the hydraulic oil working temperature is not lower, better and more precisely controlled in a specific interval. In order to maintain the temperature of hydraulic oil in a reasonable range, the existing hydraulic station is generally provided with a hydraulic oil cooling device, and main stream types comprise air-cooled type, water-cooled type, compound cooling type and the like, wherein the water-cooled type is widely applied due to stable heat dissipation efficiency and wide adaptation scene. However, the existing water-cooled cooling device and other cooling devices have the core technical defects that the cooling mode and the heat dissipation intensity are in an immobilization design, a dynamic linkage adjustment mechanism for real-time temperature of hydraulic oil is lacked, the heat dissipation capacity cannot be adaptively adjusted according to the change of the oil temperature, the control precision of the temperature of the hydraulic oil is insufficient, and the problem that the temperature is too high or too low frequently occurs. Disclosure of Invention In view of the foregoing, it is an object of the present invention to provide a cooling device for hydraulic oil in a hydraulic station, which at least partially solves the problems set forth in the background art. The technical scheme adopted by the invention is as follows, the hydraulic oil cooling device in the hydraulic station provided by the invention comprises: The cooling device comprises an oil pipe, a plurality of independent cooling cavities, a plurality of cooling pipes and a plurality of cooling pipes, wherein the oil pipe is an annular hollow pipe body, and a penetrating heat dissipation channel for air flow to pass through is arranged at the axis; The fin assembly is movably connected with the oil passing pipe, and an included angle between the fin assembly and the side wall of the oil passing pipe is adjustable; when the fin component is attached to the side wall of the oil passing pipe, the cooling liquid in the combined cooling cavity is used for carrying out intensified cooling on the hydraulic oil in the oil passing pipe through heat conduction between the fin component and the side wall of the oil passing pipe; when the fin assembly is far away from the side wall of the oil passing pipe, the hydraulic oil in the oil passing pipe is cooled conventionally only by the cooling liquid in the cooling cavity, wherein the fin assembly is provided with two groups of outer fin assemblies and inner fin assemblies, the outer fin assemblies are movably connected with the outer wall of the oil passing pipe, and the inner fin assemblies are movably connected with the inner wall of the oil passing pipe; the gear ring that rotates the setting, outer fin subassembly and interior fin subassembly are connected with first gear and second gear respectively, first gear and second gear all with the gear ring meshing transmission, just the rotation opposite direction of first gear and second gear to drive outer fin subassembly and interior fin subassembly are close to simultaneously or keep away from the oil pipe lateral wall with opposite direction. Further, the included angle between the fin component and the side wall of the oil passing pipe is adjusted to be 0-90 degrees. Further, the fin assembly comprises a rotating shaft, a heat conducting plate and fins, the rotating shaft is rotationally arranged on the oil passing pipe, the heat conducting plate is fixedly arranged on the rotating shaft, one side, close to the oil passing pipe, of the heat conducting plate is an arc-shaped surface matched with the side wall of the oil passing pipe, the fins are vertically provided with a plurality of groups on the heat conducting plate, and the heat radiati