Lifting-following rotary-type self-balancing tower crane
A self-balancing tower and rotating technology, applied in the direction of load hanging components, cranes, transportation and packaging, etc., can solve problems such as prone to overturning, difficult to remedy, hidden dangers, etc., to increase load capacity, reduce personnel, and reduce construction costs cost effect
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Embodiment 1
[0026] See the accompanying drawings: in the figure, a self-balancing rotary tower crane with lifting, including a tower 1, a luffing trolley 5, a counterweight 6 and a slewing mechanism 3, also includes a pitching cantilever 2, and a tower protection structure 7; The tower protection structure 7 includes a base plate 9 , a cover plate 8 and steel balls I10 ; the upper surface of the base plate 9 has a groove 15 , and the cover plate 8 has a through hole I18 .
[0027] In this embodiment, both the bottom plate 9 and the cover plate 8 are steel plates with a certain thickness, and the upper and lower ends thereof are horizontal surfaces. Described groove 15 promptly is the groove body that processes on the upper end surface of base plate 9, and upper opening, lower end are closed. The through hole I18 runs through the upper and lower end surfaces of the cover plate 8 .
[0028] The lower end of the steel ball I10 is placed in the groove 15, the cover plate 8 covers the upper e...
Embodiment 2
[0036] The basic structure of this embodiment is the same as that of Embodiment 1, except that improvements are made on the basis of Embodiment 1.
[0037] see Figure 5 or Image 6 , The two sides of the groove 15 on the bottom plate 9 are symmetrically provided with an arc-shaped groove I14 and an arc-shaped groove II16. The center of the arc groove I14 and the arc groove II16 is the center of the steel ball I10, that is, as Figure 5 As shown in , the shown groove 15 is a concave spherical groove, and its upper end surface is a circle, and the upper end surfaces of the shown arc-shaped groove I14 and arc-shaped groove II16 are both arcs, and the arc-shaped groove I14 and arc The upper end face of shape groove II16 is concentric with groove 15 upper end faces.
[0038] The two sides of the through hole I18 on the cover plate 8 are symmetrically provided with an arc-shaped through-hole I17 and an arc-shaped through-hole II19, and the lower end of the arc-shaped through-hole ...
Embodiment 3
[0046] The basic structure of this embodiment is the same as that of embodiment 1 or embodiment 2, but improvements are made on the basis of embodiment 1 or embodiment 2.
[0047] see figure 1 , the counterweight 6 is installed on the guide rail at the upper end of the pitch boom 2 through a pulley, and the position of the counterweight 6 on the pitch boom 2 is controlled by a hoist. That is, in the present embodiment, the structure of the counterweight 6 is the same as that of the luffing trolley, and can be changed like the luffing trolley. The design of this tower crane is called inclination (sensor) type self-balancing tower crane.
[0048] Self-balancing tower cranes have already appeared in the prior art with tension and pressure sensor technology for self-balancing. According to the principle of leverage, the moments of the balance arm and the boom are equal. However, in this solution, it is not ideal to control the amplitude of the counterweight 6 through the winch. ...
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