Mechanical drive road-roller multi-gear speed control system
A technology of mechanical drive and road roller, which is applied in the field of construction vehicle transmission system, which can solve the problems of uneven start, vibration, high failure rate of clutch master cylinder and booster cylinder of road roller, etc.
Active Publication Date: 2013-05-08
XCMG CONSTR MACHINERY
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Problems solved by technology
[0004] 1. In the process of starting or shifting gears, the gear device in the transmission mechanism is subjected to load impact, which reduces its life and durability;
[0005] 2. The start of the roller is not stable, and there is a phenomenon of shaking, especially when starting downhill, the clutch is often broken;
[0006] 3. Due to the large impact of starting, the air pressure and hydraulic oil pressure of the clutch control system fluctuate greatly, resulting in a high failure rate of the clutch master cylinder and booster cylinder
Method used
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Embodiment Construction
[0017] The present invention will be further described below in conjunction with accompanying drawing.
[0018] Such as figure 2 and image 3 As shown, the multi-gear speed change system of the mechanically driven road roller of the present invention includes a miniature fuel tank 1, a clutch pedal 2, a clutch master cylinder 3, a clutch booster cylinder 4, a clutch 5, a speed change mechanism 6, a gear lever 7, an air storage cylinder 8 and an air compressor 9. Miniature fuel tank 1 supplies oil to clutch master cylinder 3, clutch pedal 2 drives clutch master cylinder 3, clutch master cylinder 3 transmits hydraulic pressure to clutch booster cylinder 4, clutch booster cylinder 4 drives clutch 5 through a strut, clutch 5 makes The engine power and the transmission mechanism 6 are combined or disengaged, and the clutch booster cylinder 4 resets the clutch booster cylinder 4 through the air pressure supplied by the air storage tank 8, and the air pressure supplied by the air s...
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The invention discloses a mechanical drive road-roller multi-gear speed control system which comprises a hydraulic control device (10), a controller (11), a clutch pedal position sensor (2-1), a gear shift lever position sensor (7-1) and a clutch route sensor (5-1). The signal output ends of the clutch pedal position sensor, the clutch route sensor and the gear shift lever position sensor are all connected with the controller, the hydraulic control device comprises a flow control valve (10-1) and a one-way valve (10-2), the flow control valve and the one-way valve are installed between a clutch main cylinder (3) and a clutch auxiliary cylinder (4), and the flow control valve is connected with the one-way valve in parallel. The mechanical drive road-roller multi-gear speed control system prevents a gear wheel device in a speed change mechanism from bearing jumpy impact of load, prolongs service life and durability of the gear wheel device, reduces abrasion of a clutch, and improves comfort of an operator.
Description
technical field [0001] The invention relates to a transmission system of an engineering vehicle, in particular to a multi-gear transmission system of a mechanically driven road roller. Background technique [0002] At present, the multi-gear transmission system of mechanically driven road rollers is mainly manual transmission, and most of them use the clutch control system of oil top gas and manual operation of the transmission lever for transmission. The principle is as follows figure 1 As shown, when working, the operator steps on the clutch pedal 2 installed in the cab of the road roller, the clutch pedal 2 drives the clutch master cylinder 3, the clutch master cylinder 3 transmits the hydraulic pressure to the clutch booster cylinder 4, and the clutch booster cylinder 4 passes through the strut Drive the clutch 5 to disconnect the clutch 5, the clutch 5 disengages the engine power from the transmission mechanism 6, and then manually operates the transmission lever 7, so ...
Claims
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Login to View More IPC IPC(8): F16H47/00E01C19/23
Inventor 周保刚张帅张俊娴亢涛崔玉艳
Owner XCMG CONSTR MACHINERY