Portable engine camshaft bushing press-fitting mechanism

Abstract

The invention relates to a portable engine camshaft bushing press-fitting mechanism, and belongs to the technical field of engine crankcases. The portable engine camshaft bushing press-fitting mechanism comprises a hydraulic cylinder body used for pressing a camshaft bushing into a seat hole of a crankcase body bushing, and the hydraulic cylinder body comprises a hydraulic cylinder rod; the outerside portion of the hydraulic cylinder body is connected with an outer guide sleeve through a connecting bolt, and the end of the hydraulic cylinder rod is connected with a press-fitting rod through threads; an inner guide sleeve is arranged between the side surface of the press-fitting rod and the outer guide sleeve in a sleeving mode, and the crankcase body bushing is arranged on the inner guidesleeve in a sleeving mode and clamped in a gap between the outer guide sleeve and the inner guide sleeve; the camshaft bushing is arranged on the side surface of the press-fitting rod in a sleeving mode; and the diameter of an outer ring of the inner guide sleeve is equal to the diameter of an outer ring of the camshaft bushing. According to the portable engine camshaft bushing press-fitting mechanism, press-fitting of the camshaft bushing is achieved through a small hydraulic device, the structure is compact, the mechanism is not limited by the number of cylinders of a crankcase body, and press-fitting of multi-cylinder engine bushings can be sequentially achieved; and the press-fitting force is stable and controllable, and press-fitting is convenient.

Description

technical field [0001] The invention relates to a press-fitting mechanism for a portable engine camshaft bushing, and belongs to the technical field of engine crankcases. Background technique [0002] In the process of engine crankcase processing, it is necessary to install the camshaft bushing after the camshaft hole is finished. In the mass production stage, special numerical control or hydraulic equipment is generally equipped to realize the installation of the camshaft bushing. However, in the trial production stage of newly developed products, there is no special press-fitting equipment, and manual installation is often used. First, the bushing is placed at the installation hole of the crankcase bushing with a guide sleeve, and the bushing is pressed into the bushing by manual tapping. [0003] Existing disadvantages: In the trial production stage of newly developed products, if special press-fitting equipment is used, the period is long and the cost is high, and the ne...

AI Technical Summary

Problems solved by technology

[0003] Existing disadvantages: In the trial production stage of newly developed products, if special press-fitting equipment is used, the period is long and the cost is high, and the newly developed products are not finalized. If the design is changed during the development, the special equipment cannot be used, resulting in waste

However, manual press-fitting of camshaft bushings is time-consuming and labor-intensive, and the manual press-fitting force is uneven, which is likely to cause a single point of stress on the bushings and cause hidden damage to the bushings, thereby affecting the performance of the crankcase.

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