| 摘要 |
Interfitting connector plates on the base and crawler track frames of a crane or other heavy equipment are notched and apertured near their tops and bottoms to receive at least at one of these locations tapering wedge pins having multiple flat faces to engage complementary faces of the notches and apertures of the interfitting connector plates. The notches and apertures at the second location may receive straight pins or tapering wedge pins to complete the connection. The connection is very secure and tight as well as resistant to wear under the heavy pounding to which it is subjected. Easy and rapid assembly without special tools is enabled.
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