CN201358819Y - Reducing camshaft - Google Patents

Abstract

The utility model relates to a reducing camshaft, which is characterized in that the diameters of an end bearing retainer, supporting bearing retainers and a tail bearing retainer are reduced sequentially along a length direction. When being assembled, the reducing camshaft can be easily inserted into an engine from one side of an engine case, and the corresponding bearing retainers can be sleeved in bearing sleeves by slight force. In the process of disassembly and maintenance, the corresponding bearing retainers can be separated from the bearing sleeves by slight force, and the reducing camshaft can be easily taken out from one side of the case. When the utility model is applied to a multi-cylinder camshaft, more time and labor can be saved in the process of assembly and disassembly.

Description

The reducing camshaft

Technical field

The utility model belongs to the mechanical technique territory, particularly a kind of reducing camshaft.

Background technique

Camshaft is an important spare part in the engine air distribution system, is responsible for driving valve opening and closing on time, can regularly suck fresh air when cooperating engine operation, and in time waste gas after burning be discharged.

Camshaft is made of bearing guard, intake and exhaust cam, a bearing guard, axle journal etc. usually, and multicylinder engine has at least one bearing guard.

The assembling of camshaft typically has a diameter from each bearing guard, a bearing guard diameter, and gets isometrical usually.During assembling, earlier at each bearing guard brushing lubricant oil of camshaft, run through from engine shell one side then, one grade of bearing housing of every mistake, a bearing housing all need exert oneself even beat, repeatedly firmly even beat and could pack camshaft in the motor into.Multicylinder engine camshaft Assembly And Disassembly is more wasted time and energy.

Summary of the invention

The purpose of this utility model is assembled, is dismantled and waste time and energy and put forward at present conjugate yoke radial cam axle.

The reducing camshaft that the utility model is related, major character are for along its length, and step bearing shelves, a bearing guard, tail bearing shelves diameter reduce successively.

The reducing camshaft that the utility model is related is easy to during assembling penetrate motor from engine housing one side, only overlaps at corresponding bearing guard and bearing housing fashionablely to get final product with a little power slightly.During the dismounting maintenance, also only when corresponding bearing guard and bearing housing disengagement, use some power, just can be easy to take out camshaft from casing one side.

The utility model can make the camshaft Assembly And Disassembly time saving and energy saving.

Description of drawings

Fig. 1 is this practical new profile schematic representation

Fig. 2 is the utility model assembling schematic representation

Among the figure: 1-gear shaft, 2-step bearing shelves, 3-intake cam, 4-exhaust cam, 5-prop up bearing guard I, the 6-axle journal, 7-props up bearing guard II, and 8-props up bearing guard VI, 9-tail bearing shelves, 10-step bearing cover, 11-props up bearing housing I, and 12-props up bearing housing II, and 13-props up bearing housing VI, 14-tailing axle bearing sleeve, the 15-engine shell

Embodiment

The utility model relates to a kind of reducing camshaft, major character is for along its length, the step bearing shelves 2 of camshaft 1, a bearing guard 5, a bearing guard 7 ... the diameter of bearing guard 8, tail bearing shelves 9 reduces successively, promptly Φ 1＞Φ 2＞Φ 3＞...＞Φ 6＞Φ 7 (Fig. 1).Corresponding step bearing cover 10, a bearing housing 11, a bearing housing 12 ... bearing housing 13, tailing axle bearing sleeve diameter of bore also reduce (Fig. 2) successively.

The reducing camshaft that the utility model is related is easy to during assembling penetrate motor from a side of engine shell 15, only overlaps fashionable a little power of using slightly at corresponding bearing guard and bearing housing

Get final product.During the dismounting maintenance, also only when corresponding bearing guard and bearing housing disengagement, use some power, take out camshaft from casing one side and also be easy to.

The utility model is used for the multi-cylinder camshaft, and Assembly And Disassembly is more time saving and energy saving.

Claims (1)

1, a kind of reducing camshaft, major character are for along its length, and step bearing shelves, a bearing guard, tail bearing shelves diameter reduce successively.

Images