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CN-121993582-A - Circulating oil lubricating device of cycloid differential and using method thereof

CN121993582ACN 121993582 ACN121993582 ACN 121993582ACN-121993582-A

Abstract

The invention relates to the technical field of differential lubrication, in particular to a circulating oil lubrication device of a cycloid differential and a use method thereof, comprising the cycloid differential and a mounting bracket, wherein a gas-liquid atomizer is fixed at the upper end of the mounting bracket, the input ends of the gas-liquid atomizer are fixedly connected with an air compressor and a micro oil pump, and a gas-liquid mixing structure is fixed at the inner side of the gas-liquid atomizer; the gas-liquid mixing structure comprises a cavity, wherein an arc-shaped cavity and a shrinkage cavity are respectively fixed at two ends of the cavity, a connecting pipeline is fixed at one end of the shrinkage cavity, a limiting pipe is fixed at the lower end of the connecting pipeline, a nozzle is fixed at the lower end of the limiting pipe, a buffer device is fixed at the outer side of the nozzle, and the outer side of the buffer device is fixedly connected with the inner side wall of the cycloid differential.

Inventors

  • YE QUAN
  • ZHANG JIAOFENG

Assignees

  • 章臣重工(苏州)有限公司

Dates

Publication Date
20260508
Application Date
20260305

Claims (10)

  1. 1. The circulating oil lubricating device of the cycloid differential comprises a cycloid differential (1) and a mounting bracket (4) and is characterized in that a gas-liquid atomizer (5) is fixed at the upper end of the mounting bracket (4), the input ends of the gas-liquid atomizer (5) are fixedly connected with an air compressor (2) and a micro oil pump (3), and a gas-liquid mixing structure (6) is fixed at the inner side of the gas-liquid atomizer (5); the gas-liquid mixing structure (6) comprises a cavity (61), an arc-shaped cavity (62) and a shrinkage cavity (63) are respectively fixed at two ends of the cavity (61), a connecting pipeline (64) is fixed at one end of the shrinkage cavity (63), a limiting pipe (65) is fixed at the lower end of the connecting pipeline (64), a nozzle (66) is fixed at the lower end of the limiting pipe (65), a buffer device (67) is fixed at the outer side of the nozzle (66), and the outer side of the buffer device (67) is fixedly connected with the inner side wall of the cycloid differential mechanism (1); The stirring device is characterized in that the cavity (61) comprises a stirring cavity (611), fixing plates (612) which are diagonally arranged are fixed at two ends of the inner side of the stirring cavity (611), a mixing device (613) is rotated at the right-angle end of the fixing plates (612), a guide block (614) is fixed at one end, close to the arc cavity (62), of the mixing device (613) through the outer side of the fixing plates (612), and a guide structure (615) is rotated at one end, close to the arc cavity (62), of the stirring cavity (611) through a bearing.
  2. 2. The circulating oil lubrication apparatus of cycloidal differential according to claim 1, wherein the contracting chamber (63) has a tapered shape, a diameter of an end near the chamber (61) is identical to a diameter of the stirring chamber (611), a diameter of an end far from the chamber (61) is identical to a diameter of the connecting pipe (64), and a side wall of the contracting chamber (63) is inclined in an inclined direction toward a central axis of the connecting pipe (64).
  3. 3. The circulating oil lubrication device of the cycloidal differential mechanism according to claim 1, wherein the lower end of the nozzle (66) penetrates through the shell of the cycloidal differential mechanism (1), an oil gas recovery channel (7) is fixed at the bottom of the inner side of the cycloidal differential mechanism (1), and one end of the oil gas recovery channel (7) is fixedly connected with the micro oil pump (3).
  4. 4. The circulating oil lubrication device of the cycloidal differential mechanism according to claim 1, wherein the outer side of the limiting pipe (65) is embedded into the shell of the cycloidal differential mechanism (1), and the outer side of the limiting pipe (65) is movably connected with the shell of the cycloidal differential mechanism (1).
  5. 5. The circulating oil lubrication device of the cycloidal differential mechanism according to claim 1, wherein the buffer device (67) comprises an elastic bin (671), a hydraulic cavity (672) is formed in the inner side of the elastic bin (671), a buffer rod (673) is slidably connected to the inner side of the hydraulic cavity (672), and one end of a straight rod of the buffer rod (673) is fixedly connected with the outer side of the nozzle (66).
  6. 6. The circulating oil lubrication device of the cycloidal differential mechanism according to claim 1, wherein the mixing device (613) comprises a rotating shaft (6131), a spiral blade (6132) is fixed on the outer side of the rotating shaft (6131), and a through hole (6133) is formed in the inner side of the spiral blade (6132).
  7. 7. The circulating oil lubrication device of the cycloidal differential mechanism according to claim 1, wherein the guiding structure (615) comprises a connecting shaft (6151), a rotating plate (6152) is fixed on the inner side of the connecting shaft (6151), a notch (6153) is formed in the outer side of the rotating plate (6152), and the rotating plate (6152) located at the lower end of the notch (6153) is in contact with the guiding block (614).
  8. 8. The circulating oil lubrication device of the cycloidal differential mechanism according to claim 7, wherein the number of the rotating plates (6152) is two, the two rotating plates (6152) are symmetrically distributed with the connecting shaft (6151) as a center, the shape of the rotating plates (6152) is arc-shaped, and the radian of the rotating plates (6152) is matched with the radian of the inner wall of the arc-shaped cavity (62).
  9. 9. The circulating oil lubrication apparatus of cycloidal differential according to claim 5, wherein one end of the straight rod of the buffer rod (673) is vertically fixed to the outer sidewall of the nozzle (66), and the other end of the buffer rod (673) is slidably inserted into the inner side of the hydraulic chamber (672) in a sliding direction perpendicular to the central axis of the nozzle (66).
  10. 10. A method of using a circulating oil lubrication apparatus based on a cycloidal differential according to any one of claims 1-9, characterized by: Firstly, starting a gas-liquid atomizer (5) on a mounting bracket (4) through an external lead, synchronously starting an air compressor (2) and a micro oil pump (3), inputting gas into an arc-shaped cavity (62) of a gas-liquid mixing structure (6) by the air compressor (2), inputting lubricating oil into the gas-liquid mixing structure (6) by the micro oil pump (3), and converging the gas-liquid atomizer and the micro oil pump together in the arc-shaped cavity (62); S2, oil gas impacts one side of a rotating plate (6152) from one end of an arc-shaped cavity (62), the gas impacts to enable the rotating plate (6152) to drive a connecting shaft (6151) to continuously rotate along a bearing, when the rotating plate (6152) rotates, a notch (6153) on the outer side of the rotating plate synchronously drives a guide block (614) contacted with the rotating plate (6152), and further a rotating shaft (6131) of a mixing device (613) is driven to rotate along with the right-angle end of the fixed plate (612), and the rotating plate (6152) is in intermittent contact with the guide block (614), so that the rotation of a guide structure (615) drives the mixing device (613) to repeatedly rotate in a small amplitude; S3, when a rotating shaft (6131) of the mixing device (613) rotates, a spiral blade (6132) at the outer side of the mixing device synchronously rotates along with the rotating shaft, gas-liquid mixture flowing into the stirring cavity (611) from the arc-shaped cavity (62) is stirred in a spiral mode, meanwhile, part of gas-liquid mixture can pass through a perforation (6133) at the inner side of the spiral blade (6132), the layering state of the gas-liquid is broken, and preliminary uniform mixing is carried out; s31, two fixing plates (612) which are diagonally distributed on the inner side of the stirring cavity (611) guide the flowing direction of the gas-liquid mixture, so that the mixture intensively flows through the spiral blade area of the mixing device (613), and then the gas-liquid mixture flows along the contraction cavity (63) to finish uniform mixing in the gas-liquid mixing structure (6); S4, enabling the uniformly mixed gas-liquid mixture to enter a connecting pipeline (64) through a contraction cavity (63), then conveying the gas-liquid mixture to a nozzle (66) through the guiding action of a limiting pipe (65), and finally spraying the gas-liquid mixture to a friction pair area of the cycloid differential mechanism (1) after atomizing the gas-liquid mixture by the nozzle (66); s5, oil mist which is not adsorbed by the friction pair can gather at the inner side of the cycloid differential mechanism (1), then flows into the input end of the micro oil pump (3) along the oil gas recovery channel (7) at the bottom of the inner side, and in the process, the gas-liquid mixing structure (6), the mixing device (613) and the guide structure (615) keep continuous linkage to realize the circulation supply of lubricating medium.

Description

Circulating oil lubricating device of cycloid differential and using method thereof Technical Field The invention relates to the technical field of differential lubrication, in particular to a circulating oil lubrication device of a cycloidal differential and a use method thereof. Background The circulating oil lubricating device of the cycloidal differential is a differential mechanism which is a cycloidal pin gear differential and adopts cycloidal pin gear meshing and planetary transmission principles, and a special system for forced lubricating oil circulation is provided, so that the problems of lubrication and cooling of the cycloidal differential under severe working conditions such as high load, high rotating speed, continuous working and the like are mainly solved; The cycloidal differential is specially developed for a horizontal spiral discharging filter centrifuge, the maximum output torque of the cycloidal differential used in the centrifuge industry at present is 9000 nm, and along with the development of the industry, partial users put forward higher demands on the maximum output torque of the differential, the maximum output torque of the cycloidal differential is required to reach 14000 nm, the outer diameter of the machine is controlled within 550mm, the maximum output torque reaches 14000, the single-stage transmission speed ratio is 43 or 59, and the whole machine rotates about 600 rpm, so that the dynamic balance parameter requirement is met; In the traditional gas-liquid lubrication system, a simple convergence structure with straight channel butt joint is generally adopted in a gas-liquid mixing link, as the physical characteristics of gas and lubricating oil such as density, viscosity and the like are obviously different, the gas density is small, the mobility is strong, the lubricating oil is easy to flow through a convergence region rapidly, the density of the lubricating oil is high, the viscosity is high, the flow rate is relatively slow, the layering trend caused by the density difference is difficult to overcome in the simple convergence process, the obvious gas-liquid layering phenomenon of gas and lubricating oil is easy to occur, when a gas-liquid two-phase flow in the layering state enters a subsequent atomization unit, dry atomization occurs in a gas enrichment section of the layering region, and when uneven oil mist is sprayed to friction pairs of cycloid differential and other equipment, the abrasion of part of meshing surfaces is aggravated; therefore, a circulating oil lubrication device of a cycloidal differential and a using method thereof are provided for solving the problems. Disclosure of Invention The invention aims to provide a circulating oil lubrication device of a cycloidal differential and a use method thereof, so as to solve the problems in the prior art. In order to achieve the above purpose, the present invention provides the following technical solutions: The circulating oil lubricating device of the cycloid differential comprises the cycloid differential and a mounting bracket, wherein the upper end of the mounting bracket is fixedly provided with a gas-liquid atomizer, the input end of the gas-liquid atomizer is fixedly connected with an air compressor and a micro oil pump, the inner side of the gas-liquid atomizer is fixedly provided with a gas-liquid mixing structure, the gas-liquid mixing structure comprises a cavity, two ends of the cavity are respectively fixedly provided with an arc-shaped cavity and a shrinkage cavity, one end of the shrinkage cavity is fixedly provided with a connecting pipeline, the lower end of the connecting pipeline is fixedly provided with a limiting pipe, the lower end of the limiting pipe is fixedly provided with a nozzle, the outer side of the nozzle is fixedly provided with a buffer device, the outer side of the buffer device is fixedly connected with the inner side wall of the cycloid differential, the cavity comprises a stirring cavity, two ends of the inner side of the stirring cavity are fixedly provided with diagonally arranged fixing plates, the right-angled ends of the fixing plates are rotated to be provided with mixing devices, one end of the mixing devices, which is close to the arc-shaped cavity, passes through the outer side of the fixing plates to be fixedly provided with guide blocks, and one end, which is close to the arc-shaped cavity is rotated by a bearing. As a further optimized content of the invention, the shape of the shrinkage cavity is conical, the diameter of one end of the shrinkage cavity close to the cavity is consistent with the diameter of the stirring cavity, the diameter of one end of the shrinkage cavity far away from the cavity is consistent with the diameter of the connecting pipeline, and the side wall of the shrinkage cavity is in an inclined state, and the inclined direction of the shrinkage cavity faces the central axis of the connecting pipeline. As a further optimized content of