Hydraulic actuating synchronizer executing mechanism

• Main Authors: ZOU MIANYI, WANG YUMING, WANG ZHISONG, YIN XIAOLONG, ZHANG KUANKUAN, WANG ZHENSUO, YANG QING, LI SHUYING
• Format: Patent
• Language: English
• Published: 09.12.2015
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention discloses a hydraulic actuating synchronizer executing mechanism. The hydraulic actuating synchronizer executing mechanism comprises a first electromagnetic valve, a second electromagnetic valve, a fourth mechanical valve, a fifth mechanical valve, a sixth mechanical valve and a seventh mechanical valve. An outlet of the first electromagnetic valve is connected with a left inlet of the fifth mechanical valve. An outlet of the second electromagnetic valve is connected with a right inlet of the fourth mechanical valve. An outlet of the seventh mechanical valve is connected with a right inlet of the fifth mechanical valve, and a right inlet of the seventh mechanical valve is connected with an outlet of the fourth mechanical valve. An outlet of the sixth mechanical valve is connected with a left inlet of the fourth mechanical valve, and a right inlet of the sixth mechanical valve is connected with an outlet of the fifth mechanical valve. An outlet of the fourth mechanical valve is connected to the right side of a shift fork actuating oil cavity. An outlet of the fifth mechanical valve is connected to the left side of the shift fork actuating oil cavity. The oil pressure at the left inlet and the oil pressure of the right inlet of the fourth mechanical valve are compared, the inlet with the higher oil pressure is selected to be communicated to the outlet of the fourth mechanical valve, the oil pressure of the left inlet and the oil pressure of the right inlet of the fifth mechanical valve are compared, and the inlet with the large pressure is selected to be communicated with the outlet of the fifth mechanical valve. According to the hydraulic actuating synchronizer executing mechanism, impacting and offside caused by inappropriate control over the oil pressure on the two sides of a piston in the shift fork actuating oil cavity can be avoided in the gear shifting and downshift process of a synchronizer.