Ball screw capable of achieving rapid separation and reunion

Abstract

The invention discloses a ball screw capable of achieving rapid separation and reunion. The ball screw is connected with a clutch and comprises a screw shaft and a sliding component capable of doing rectilinear back and forth movement on the screw shaft. The outer ring of the screw shaft is sleeved with the sliding component. The outer circumference of the screw shaft is of a thread structure. The sliding component comprises a contact part, a nut, a cylinder and a fixing part, wherein the outer ring of the screw shaft is sleeved with the contact part, the outer ring of the contact part is sleeved with the nut, the outer ring of the nut is sleeved with the cylinder, and the end of the nut is sleeved with the fixing part. The end, close to the fixing part, of the contact part is of a convex structure and connected with the fixing part through a reset spring. The outer ring of the other end of the contact part is provided with a groove a, a supporting part is clamped to the groove a, the outer ring of the contact part is provided with multiple rows of ball hole sets, each ball hole set is composed of multiple ball holes, balls are arranged in the ball holes, the cylinder is arranged between the supporting part and the fixing part, and the fixing part is limited and clamped to one end of the nut. The ball screw has the advantages that the rotation transmission way of the screw shaft and the nut is changed, and rapid separation and reunion and rapid retreating can be achieved.

Description

[0001] Technical field: [0002] The invention relates to a lead screw, in particular to a fast clutch ball screw used in conjunction with a clutch. [0003] Background technique: [0004] Lead screws are ideal products for converting rotary motion into linear motion, or converting linear motion into rotary motion. Lead screw is the most commonly used transmission element in tool machinery and precision machinery. Its main function is to convert rotary motion into linear motion, or convert torque into axial repeated force, and at the same time, it has high precision, reversibility and high efficiency. specialty. Due to its small frictional resistance, lead screws are widely used in various industrial equipment and precision instruments. [0005] A traditional lead screw consists of a shaft with trapezoidal threads and a nut that reciprocates on the shaft. Due to this design, about 70% of the power is wasted due to heat generated by the sliding contact surfaces, so it is often...

AI Technical Summary

Problems solved by technology

The former effectively limits the load-carrying capacity of the ball screw mechanism within a certain range. For a given diameter, the load-carrying capacity increases, while the latter has excellent cooling efficiency and can suppress the leakage of cooling medium during disassembly, assembly and maintenance, but both exist One thing in common: the motor drives the screw shaft or the nut to rotate, and the screw shaft rotates relative to the nut to realize the axial reciprocating movement of the nut. The clutch retraction must be achieved by rotation, and the effect of fast clutch and fast retraction cannot be achieved.

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