Rolling needle lead screw
A lead screw and needle roller technology, applied in belts/chains/gears, mechanical equipment, transmission devices, etc., can solve the problems of poor monitoring accuracy of lead screw movement and poor bearing capacity of ball screws, and achieve convenient replacement and improvement. Radial bearing capacity, good smoothness effect
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[0027] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0028] Such as figure 1 and figure 2 As shown, the present invention is a needle screw, which mainly includes a screw 2 and a sliding sleeve 1 sleeved on the screw 2;
[0029] Wherein the sliding sleeve 1 includes a sliding hole for passing through the lead screw 2, and two sets of stroke roller mechanisms and two sets of supporting rod mechanisms are arranged in the sliding sleeve 1;
[0030] Wherein the supporting roller mechanism includes a plurality of rotating grooves 3 arranged in an array along the inner wall of the sliding hole, the array radian of the rotating grooves 3 is greater than or equal to 180°, and a roller A4 is arranged in the rotating g...
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