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CN-121977057-A - Hydraulic-conical disc roller-gear composite multi-mode transmission device

CN121977057ACN 121977057 ACN121977057 ACN 121977057ACN-121977057-A

Abstract

The invention provides a hydraulic-conical disc roller-gear compound multi-mode transmission device which comprises an input member, a front planetary gear mechanism, a hydraulic transmission mechanism, a middle planetary gear mechanism, a rear planetary gear mechanism, an output shaft, an intermediate shaft and a full-ring conical disc roller transmission mechanism. The invention can provide any one or any two or three combination transmission modes of hydraulic transmission, cone disc roller transmission and gear transmission between the input mechanism and the output shaft by controlling the displacement ratio of the hydraulic transmission mechanism, the transmission ratio of the full-ring cone disc roller transmission mechanism and selectively controlling the engagement of the clutch and the brake.

Inventors

  • ZHU ZHEN
  • WANG DENGFENG
  • MENG ZIHAO

Assignees

  • 吉林大学

Dates

Publication Date
20260505
Application Date
20260331

Claims (10)

  1. 1. The hydraulic-conical disc roller-gear compound multi-mode transmission device is characterized by comprising an input member, a front planetary gear mechanism, a hydraulic transmission mechanism, a middle planetary gear mechanism, a rear planetary gear mechanism, an output shaft, an intermediate shaft and a full-ring conical disc roller transmission mechanism; The output end of the hydraulic transmission mechanism is respectively connected with the middle planetary gear mechanism and the rear planetary gear mechanism, the output end of the full-ring cone disc roller type transmission mechanism is respectively connected with the middle planetary gear mechanism and the rear planetary gear mechanism, the middle shaft is connected with the front planetary gear mechanism and the middle planetary gear mechanism, the output shaft is connected with the rear planetary gear mechanism, and the middle shaft is selectively connected with the output shaft; by controlling the displacement ratio of the hydraulic transmission mechanism, the transmission ratio of the full-ring conical disc roller transmission mechanism and selectively controlling the engagement of the clutch and the brake, the transmission mode of any one or any two or three of the combination of the hydraulic transmission, the conical disc roller transmission and the gear transmission between the input mechanism and the output shaft is provided.
  2. 2. The hydraulic-cone pulley-gear compound multi-mode transmission of claim 1, wherein the input member comprises an input shaft, a clutch C 0 and an input shaft gear, the input shaft is connected with the input shaft gear, the input shaft gear is connected with the input ends of the hydraulic transmission mechanism and the full-ring cone pulley transmission mechanism respectively, and the clutch C 0 selectively connects the input shaft with the front planetary gear mechanism; The hydraulic transmission mechanism comprises a hydraulic transmission input gear, a hydraulic transmission first output gear, a hydraulic transmission input shaft, a clutch C 1 , a variable pump, a hydraulic pipeline, a quantitative motor, a clutch C 2 , a hydraulic transmission output shaft, a clutch C 3 , a hydraulic transmission second output gear and a hydraulic transmission third output gear, wherein the hydraulic transmission input gear is connected with the input shaft gear, the clutch C 1 selectively connects the hydraulic transmission input gear with the hydraulic transmission input shaft, the hydraulic transmission input shaft is connected with the variable pump, the variable pump is connected with the quantitative motor through the hydraulic pipeline, the quantitative motor is connected with the hydraulic transmission output shaft, the clutch C 2 selectively connects the hydraulic transmission output shaft with the hydraulic transmission first output gear, the hydraulic transmission first output gear is connected with the hydraulic transmission third output gear, the hydraulic transmission third output gear is connected with the middle planetary gear mechanism, the clutch C 3 selectively connects the hydraulic transmission second output gear with the hydraulic transmission output shaft, and the hydraulic transmission second output shaft is connected with the rear planetary gear mechanism; The full-ring type cone disc roller type transmission mechanism comprises a full-ring type cone disc roller type transmission input gear, a clutch C 4 , a full-ring type cone disc roller type transmission input shaft, a full-ring type cone disc roller type speed changing device, a full-ring type cone disc roller type transmission output shaft, a full-ring type cone disc roller type transmission first output gear, a clutch C 5 , a full-ring type cone disc roller type transmission second output gear, a clutch C 6 and a full-ring type cone disc roller type transmission third output gear; the clutch C 4 selectively connects the full-ring type cone disc roller type transmission input shaft with the full-ring type cone disc roller type transmission input gear, the full-ring type cone disc roller type transmission input shaft is connected with the input end of the full-ring type cone disc roller type speed changing device, the full-ring type cone disc roller type transmission output shaft is connected with the output end of the full-ring type cone disc roller type speed changing device, the clutch C 5 selectively connects the full-ring type cone disc roller type transmission output shaft with the full-ring type cone disc roller type transmission first output gear, the full-ring type cone disc roller type transmission first output gear is connected with the full-ring type cone disc roller type transmission third output gear, the full-ring type cone disc roller type transmission third output gear is connected with the middle planetary gear mechanism, and the clutch C 6 selectively connects the full-ring type cone disc roller type transmission output shaft with the full-ring type cone disc roller type transmission second output gear, and the full-ring type cone disc roller type transmission second output gear is connected with the planetary gear; The front planetary gear mechanism comprises a front sun gear, a front planet carrier and a front gear ring, wherein the front gear ring is selectively connected with an input shaft through a clutch C 0 , the front planet carrier is connected with an intermediate shaft, and the front sun gear, the front planet carrier and the front gear ring form a front planetary gear train; The middle planetary gear mechanism comprises a middle gear ring, a middle planet carrier, a middle sun gear and a clutch C 7 , wherein the middle gear ring is connected with the front sun gear in series and then is connected with a third output gear of hydraulic transmission, the middle planet carrier is connected with an intermediate shaft, the clutch C 7 selectively connects the middle sun gear with the middle gear ring, the middle sun gear is connected with the third output gear of full-ring cone disc roller transmission, and the middle gear ring, the middle planet carrier and the middle sun gear form a middle planetary gear train; The rear planetary gear mechanism comprises a brake B 1 , a rear sun gear, a rear gear ring, a rear planet carrier, a clutch C 8 and a brake B 2 , wherein the rear sun gear is connected with the middle sun gear in series, the brake B 1 selectively brakes the rear sun gear, the rear planet carrier is connected with an output shaft, the clutch C 8 selectively connects the output shaft with an intermediate shaft, the rear gear ring is respectively connected with a hydraulic transmission second output gear and a full-ring cone disc roller type transmission second output gear, the brake B 2 selectively brakes the rear gear ring, and the rear sun gear, the rear gear ring and the rear planet carrier form a rear planetary gear train.
  3. 3. The hydraulic-cone roller-gear compound multi-mode transmission of claim 2 wherein hydraulic transmission between said input and output shafts is provided by displacement ratio of said hydraulic transmission mechanism and selectively controlling engagement of said clutch C 1 , clutch C 3 and brake B 1 , with the hydraulic transmission output-input speed relationship being: 。
  4. 4. The hydraulic-cone pulley-gear compound multi-mode transmission of claim 2 wherein the cone pulley transmission between the input shaft and the output shaft is provided by controlling the ratio of the full ring cone pulley transmission and selectively controlling the engagement of the clutches C 4 , C 6 and B 1 , with the cone pulley transmission output-input speed relationship: 。
  5. 5. The hydraulic-cone roller-gear compound multi-mode transmission of claim 2 wherein by selectively controlling the engagement of said clutch C 0 , clutch C 7 and brake B 2 , a gear drive between said input and output shafts is provided, wherein the gear drive output-input speed relationship is: 。
  6. 6. The hydraulic-cone roller-gear compound multi-mode transmission of claim 2 wherein the hydraulic-gear compound transmission between the input shaft and output shaft is provided by displacement ratio of the hydraulic transmission mechanism and selectively controlling engagement of the clutches C 0 , C 1 , C 2 and C 8 , with the hydraulic-gear compound transmission output-input rotational speed relationship being: 。
  7. 7. The hydraulic-cone pulley-gear compound multi-mode transmission of claim 2 wherein a cone pulley-gear compound transmission between the input shaft and the output shaft is provided by controlling the ratio of the full ring cone pulley transmission and selectively controlling the engagement of the clutches C 0 , C 4 , C 6 and C 7 , with the cone pulley-gear compound transmission output-input speed relationship being: 。
  8. 8. The hydraulic-cone pulley-gear compound multi-mode transmission of claim 2 wherein engagement of said clutches C 1 , C 2 , C 4 , C 6 and C 7 , through the displacement ratio of said hydraulic transmission, the transmission ratio of a full-ring cone pulley transmission, and selectively control, provides a hydraulic-gear-cone pulley compound type 1 transmission between said input and output shafts, when the hydraulic-gear-cone pulley compound type 1 transmission output-input speed relationship is: 。
  9. 9. The hydraulic-cone pulley-gear compound multi-mode transmission of claim 2 wherein the engagement of said clutches C 1 , C 3 , C 4 and C 5 , through the displacement ratio of said hydraulic transmission, the transmission ratio of a full-ring cone pulley transmission, and selectively control, provides a hydraulic-gear-cone pulley compound type 2 transmission between said input and output shafts, wherein the hydraulic-gear-cone pulley compound type 2 transmission output-input speed relationship is: 。
  10. 10. The hydraulic-cone pulley-gear compound multi-mode transmission of claim 2 wherein single flow transmission to compound transmission and unpowered discontinuous switching between compound transmissions is provided by controlling the displacement ratio of the hydraulic transmission, the gear ratio of the full ring cone pulley transmission, and selectively controlling clutch to brake engagement: When meeting the requirements When the hydraulic transmission is switched to the hydraulic-gear compound transmission, the unpowered interruption is provided; When meeting the requirements When in use, the hydraulic transmission is provided for the unpowered interruption switching of the conical disc roller-gear composite transmission; When meeting the requirements When the conical disc roller is in a power-free interruption switching state, the conical disc roller is driven to the hydraulic-gear compound drive; When meeting the requirements When the hydraulic-gear compound transmission is used, unpowered interruption switching from the hydraulic-gear-conical disc roller compound type 1 transmission is provided; When meeting the requirements When the hydraulic power is in use, unpowered interrupt switching from cone disc roller-gear composite transmission to hydraulic-gear-cone disc roller composite 1-type transmission is provided; When meeting the requirements When the hydraulic-gear compound transmission is used, unpowered interruption switching from the hydraulic-gear-conical disc roller compound transmission to the hydraulic-gear-conical disc roller compound transmission is provided; When meeting the requirements When in use, the unpowered interruption switching from the cone disc roller-gear composite transmission to the hydraulic-gear-cone disc roller composite 2-type transmission is provided; When meeting the requirements When the hydraulic-gear-conical disc roller composite type 1 transmission is provided, the unpowered interruption switching from the hydraulic-gear-conical disc roller composite type 2 transmission is provided.

Description

Hydraulic-conical disc roller-gear composite multi-mode transmission device Technical Field The invention relates to the technical field of transmission control, in particular to a hydraulic-conical disc roller-gear compound multi-mode transmission device. Background The operation working conditions of engineering machinery, mining machinery, agricultural machinery and new energy special operation vehicles are complex and severe in the operation process, and extreme working conditions of sudden load increase and sudden load decrease, heavy load start and stop and frequent speed change and reversing are often faced. The low-power unit always needs to sacrifice the working efficiency to overcome the heavy-load working condition, and simultaneously has the problems of high energy consumption and insufficient working stability, the high-power unit has the defects of high whole machine cost and large volume weight, and has the serious problem of excessive power under the light-load stable working condition, and the dynamic property and the economical efficiency under the full working condition cannot be considered. The transmission modes currently applied to heavy-duty operation equipment comprise gear uniflow transmission, hydraulic uniflow transmission, conical disc roller uniflow transmission and composite transmission of coupling of the two types of transmission. The gear transmission has the core advantages of high transmission efficiency, strong bearing capacity and high working reliability, but the transmission ratio is fixed, frequent gear shifting is needed in the operation process, gear shifting impact is easy to generate, the stepless speed change function is difficult to realize, and the gear transmission cannot adapt to the operation scene of frequent fluctuation of load and rotating speed; the hydraulic transmission can conveniently realize stepless speed regulation, has strong low-speed large-torque transmission capability and excellent overload resistance, can stably realize starting and reversing under heavy-load working conditions, but has obviously reduced transmission efficiency under medium-high-speed light-load working conditions, large energy consumption and loss of a system, and easy occurrence of heating and efficiency attenuation problems during long-term high-speed operation. The combined transmission of the two types of transmission coupling can take partial advantages of the two transmission forms into account, the working condition adaptation range is widened to a certain extent, but the comprehensive advantages of high efficiency and high bearing of gear transmission, strong overload and low speed and large torque of hydraulic transmission and high precision stepless speed regulation of cone disc roller transmission cannot be simultaneously exerted, the operation requirements of full scenes and full working conditions such as heavy load starting, stable speed regulation, high-efficiency and high-speed running, accurate operation and the like of equipment are difficult to be simultaneously met, and flexible switching of transmission modes and optimal efficiency matching of full speed ratio intervals cannot be realized. Disclosure of Invention The invention aims to provide a hydraulic-conical disc roller-gear compound multi-mode transmission device 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: A hydraulic-conical disc roller-gear compound multi-mode transmission device comprises an input member, a front planetary gear mechanism, a hydraulic transmission mechanism, a middle planetary gear mechanism, a rear planetary gear mechanism, an output shaft, an intermediate shaft and a full-ring conical disc roller transmission mechanism, wherein the output end of the input member is respectively connected with the input ends of the front planetary gear mechanism, the hydraulic transmission mechanism and the full-ring conical disc roller transmission mechanism, the front planetary gear mechanism, the hydraulic transmission mechanism and the full-ring conical disc roller transmission mechanism are connected in parallel, the front planetary gear mechanism, the middle planetary gear mechanism and the rear planetary gear mechanism are sequentially connected in series, the output end of the hydraulic transmission mechanism is respectively connected with the middle planetary gear mechanism and the rear planetary gear mechanism, the intermediate shaft is respectively connected with the front planetary gear mechanism and the middle planetary gear mechanism, the output shaft is selectively connected with the rear planetary gear mechanism, and a transmission ratio of the full-ring conical disc roller transmission mechanism and a selective controller are controlled to be engaged with any one or combination of the transmission modes of the hydraulic transmission mechanism, the transmission mechanism and