Electric lifting table with screw rod torsion-resistant protection design
A technology of protection design and lifting platform, applied in the direction of lifting frame, lifting device, lifting equipment safety device, etc., can solve the problems of accelerating the damage and fracture of the screw rod, affecting the service life of the electric lifting platform, etc., and achieve the effect of reducing maintenance costs.
Active Publication Date: 2014-11-26
MIRACLE AUTOMATION ENG CO LTD
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Problems solved by technology
In the previous screw drive mechanism, since the screw is completely fixed relative to the middle box, once it is subjected to a non-axial force, the screw will be slightly bent, and the screw will be greatly accelerated under this working condition. The damage or even fracture will affect the service life of the entire electric lifting platform
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Embodiment Construction
[0013] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0014] Such as Figure 1~Figure 3 As shown, the electric lifting platform of the present invention is mainly composed of a base 1, an upper table 6, a scissors mechanism, a screw drive mechanism and a supporting electric control system; the scissors mechanism has two groups, and the two groups of scissors mechanisms Symmetrically arranged on both sides of the electric lifting platform; each set of scissors mechanism is composed of an inner scissors arm 2 and an outer scissors arm 5, and the inner scissors arm 2 and the outer scissors arm 5 are mutually connected by a pin 7 in the middle. Hinged: the lower end of the inner scissor arm 2 is hinged with the base 1, the upper end of the inner scissor arm 2 is supported on the upper table 6 by supporting wheels, and the upper cam plate 8 is installed above the hinge of the inner scissor arm 2; the outer scissor arm ...
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The invention relates to an electric lifting table with a screw rod torsion-resistant protection design. The electric lifting table comprises a base, an upper table surface, scissor fork mechanisms, a screw rod transmission mechanism and a matched electronic control system, wherein the screw rod transmission mechanism is arranged between two groups of scissor fork mechanisms and comprises a motor, a gearbox, a middle box, a pull box, a screw rod, a stroke guide rod and a braking hydraulic cylinder. The electric lifting table is characterized in that the middle box is provided with a rotatable back rotary seat, the motor and the gearbox are connected and installed on the back rotary seat, a rotatable front rotary seat is installed in the middle of the pull box, and a nut seat is installed on the front rotary seat. According to the electric lifting table, the back rotary seat is installed on the middle box of the screw rod transmission mechanism, the front rotary seat is installed in the middle of the pull box, so that non-axial force on the screw rod can be eliminated, torsion-resistant protection for the screw rod transmission mechanism can be achieved, and the screw rod transmission mechanism can be effectively protected when abnormal conditions happen to devices during manufacturing and using processes.
Description
technical field [0001] The invention relates to an improvement of an electric lifting platform, in particular to an electric lifting platform with a screw rod anti-torsion protection design. Background technique [0002] In the automobile assembly conveyor line, lifting equipment is often used to lift the car body or the slide carrier to realize the switching of workpieces at different heights. Electric lift table (also called electric scissor lift table, cam type electric lift table) is a commonly used lifting equipment. However, due to the unavoidable assembly errors and manufacturing errors in the actual manufacturing of the electric lifting table, these errors will cause the screw to be in the working condition of non-axial force (force deviating from the direction of the central axis of the screw). In addition, because the lifting of the lifting platform needs to cooperate with the electronic control system, the lifting platform may also fall during the debugging state...
Claims
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IPC IPC(8): B66F7/28B66F17/00
Inventor 吴雯龙郭大宏黄建峡
Owner MIRACLE AUTOMATION ENG CO LTD