Screw press

A technology for screw presses and fuselages, applied in the field of presses, which can solve problems such as insufficient lubrication, wear, and shortened service life of thread pairs, and achieve the effects of improving lubrication conditions, prolonging service life, and increasing forming force

Inactive Publication Date: 2003-10-01
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the lubricating oil has been extruded from the pressure-bearing surface of the threaded pair when the slider presses the workpiece, and when the slider returns, the thrust of the hydraulic cylinder still acts on the same pressure-bearing surface of the threaded pair, so the threaded pair may lubricate Insufficient, causing wear and shortening service life

Method used

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Examples

Experimental program
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Embodiment Construction

[0015] like figure 1 , figure 2 , image 3 As shown: four guide rails 2 are installed on the fuselage 1 of the screw press, and the main slider 3 and the auxiliary slider 20 can make reciprocating linear motion along the guide rails 2 . The main nut 4 is connected with the main slide block 3 as a whole through the main round pin 5, the main flange 6 and the main bolt 7, and the thread of the screw rod 16 is matched with the main nut 4. The auxiliary nut 21 is connected as a whole with the auxiliary slider 20 through the auxiliary round pin 19, the auxiliary flange 18 and the auxiliary bolt 17, and the thread of the screw rod 16 is matched with the auxiliary nut 21. The end of the piston rod 8 is hingedly connected with the auxiliary slider 20 , and the hydraulic cylinder 9 is installed on the fuselage 1 through the support pin 10 . The screw rod 16 is integrally connected with the inertia wheel 11 through the round pin 12 and the flat nut 13 , and is installed on the fusel...

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PUM

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Abstract

A screw press features that a spiral thread of primary nut is stressed only when the workpiece is pressed by slide block, and is composed of a central screw bolt, an inertial wheel linked to top end of screw bolt, a primary nut engaged with lower segment of screw bolt and connected to primary slide block via primary flange, a secondary nut engaged with middle segment of screw bolt and connected to secondary slide block via secondary flange, the symmetric guide tracks for both slide blocks, the hydraulic cylinder, and piston whose rod is hinged to secondary slide block. Its advantages are goodlubricating condition between nut and screw bolt and long service life.

Description

technical field [0001] The invention belongs to the field of presses, in particular to a press with screw transmission for mechanical conversion of linear motion and rotary motion. Background technique [0002] The NPS high-energy screw press described in the 1981 sample of Siempelkamp Company of Germany includes a fuselage, a screw, a nut, a slider, an inertia wheel and a hydraulic cylinder. The upper end is connected with the inertia wheel as a whole, the screw and the nut are threaded, the nut is connected with the slider through the flange, the guide rail is installed symmetrically with the central axis in the fuselage, the slider slides and connects along the guide rail, and the hydraulic cylinder is connected with the center of the fuselage Axisymmetrically installed on the machine body, the piston end of the hydraulic cylinder is hingedly connected with the slider. The press uses the hydraulic cylinder to directly push the slider and the main nut back, and through the...

Claims

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Application Information

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IPC IPC(8): B30B1/23
Inventor 黄树槐卢怀亮
Owner HUAZHONG UNIV OF SCI & TECH
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