Crane and its engineering machinery counterweight piercing device
A technology of construction machinery and pin threading, which is applied to cranes and other directions, and can solve the problems of only axial disassembly, inconvenient disassembly work, and large axial disassembly space.
Active Publication Date: 2018-02-09
HEFEI SMARTER TECH GROUP CORP
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Problems solved by technology
Since it cannot be disassembled perpendicular to the ground, it can only be disassembled axially, which requires a large axial disassembly space, which brings inconvenience to the disassembly work
Method used
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Embodiment Construction
[0021] The invention provides a counterweight pin-threading device of construction machinery, which realizes the provision of a counterweight pin-threading device of construction machinery that requires less axial disassembly space. The present invention also provides a crane comprising the above-mentioned counterweight pin-threading device for engineering machinery.
[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0023] figure 1 It is a structural diagram of the installation state of the construction ma...
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The construction machinery counterweight pin-through device provided by the present invention includes: a turntable plate; a connecting plate; a pin-through pin shaft; a pin-through oil cylinder; The pin head is provided with a first clamping groove along its radial direction, and the end of the cylinder rod of the pin-penetrating cylinder is provided with a clamping joint matched with the first clamping groove; the connecting plate is provided with a first clamping groove. In the second clamping groove with the same clamping direction, the second end of the installation shaft is clamped into the second clamping groove, and a locking part is arranged. After the installation shaft is clamped and locked by the locking member, the position limit of the oil cylinder rod is realized, the freedom degree of the up and down direction is limited, and the purpose of fastening and installation is achieved. Due to the adoption of the above structure, the construction machinery counterweight pinning device can be disassembled in the radial direction during disassembly, thereby achieving the purpose of providing a construction machinery counterweight pinning device that requires less space for axial disassembly. The present invention also provides a crane.
Description
technical field [0001] The invention relates to the technical field of engineering machinery, more specifically, to a counterweight pin-threading device of an engineering machinery. The invention also relates to a crane. Background technique [0002] With the development of my country's economic construction, my country's use of hoisting machinery is becoming more and more extensive. [0003] At present, the counterweight pinning device of crawler cranes can be disassembled freely, and the disassembly form of the counterweight pinning device of crawler cranes is mostly: there is a counterweight pinning device on the inside of the counterweight, which is installed with the turntable through a threaded shaft to achieve fixation. . Since it cannot be disassembled perpendicular to the ground, it can only be disassembled axially, which requires a large axial disassembly space, which brings inconvenience to the disassembly work. [0004] Therefore, how to provide a construction...
Claims
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IPC IPC(8): B66C23/72
Inventor 郑恒姜忠宝夏汉晖
Owner HEFEI SMARTER TECH GROUP CORP