Mobile counterweight mechanism for engineering machine
A construction machinery, mobile technology, applied in cranes and other directions, can solve the problems of large force on the hinge point of the counterweight support, affecting the life of the oil cylinder, and easy fatigue damage to the welding seam.
Active Publication Date: 2014-03-19
SANY AUTOMOBILE HOISTING MACHINERY
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Problems solved by technology
[0004] 1) When the counterweight swings before and after the hoisting and turning, the whole vehicle shakes a lot, and the stability of the whole vehicle is low;
[0005] 2) When the counterweight swings back and forth, the horizontal thrust cylinder is stressed, which affects the life of the cylinder;
[0006] 3) The hinge point on the counterweight support is stressed, and the weld is prone to fatigue damage
Method used
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[0027] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0028] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, therefore, the present invention is not limited to the specific embodiments disclosed below limit.
[0029] Combine below Figure 1 to Figure 4 A mobile counterweight mechanism for construction machinery according to an embodiment of the present invention will be described in detail.
[0030] As shown in the figure, the construction machinery includes a counterweight 4, a turntable base 9 and a hoist box 10 fixedly connected to the turntable base 9. The mobile counterweight mechanism includes: a for...
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The invention provides a mobile counterweight mechanism for an engineering machine. The engineering machine comprises a counterweight block, a rotary table base body and a winding housing fixedly connected to the rotary table base body; the mobile counterweight mechanism comprises a force transferring part, a position-changing oil cylinder and locking devices, wherein two ends of the force transferring part are respectively connected with the winding housing and the counterweight block; one end of the position-changing oil cylinder is connected with the rotary table base body and / or the winding housing, and the other end of the position-changing oil cylinder is connected with the counterweight block; and after the counterweight block moves to a target position along with the force transferring part and the position-changing oil cylinder, the locking devices can be connected with connecting plates arranged on the counterweight block so as to lock the counterweight block. Through the technical scheme of the invention, the mobile counterweight mechanism can be fixed before and after the counterweight block is moved so that the stability of the mobile counterweight mechanism is improved, and the service life of a finished automobile is prolonged.
Description
technical field [0001] The invention relates to the technical field of construction machinery, in particular to a mobile counterweight mechanism for construction machinery. Background technique [0002] Truck cranes are increasingly used in construction machinery. Truck cranes mainly improve the lifting performance of the vehicle by changing the weight center of the vehicle. At present, the lifting performance of the vehicle is mainly improved by adding fixed counterweight and counterweight movement. prevent overturning. [0003] But there are following disadvantages in the swing mechanism in the currently existing counterweight mobile mechanism: [0004] 1) When the counterweight swings before and after the hoisting and turning, the whole vehicle shakes a lot, and the stability of the whole vehicle is low; [0005] 2) When the counterweight swings back and forth, the horizontal thrust cylinder is stressed, which affects the life of the cylinder; [0006] 3) The hinge poi...
Claims
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IPC IPC(8): B66C23/76
Inventor 吴果强方强吕宏松
Owner SANY AUTOMOBILE HOISTING MACHINERY