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Forge press reducing thread connecting device and its design method

A variable-diameter thread and forging press technology, which is applied to forging/pressing/hammer devices, connecting components, mechanical equipment, etc., to achieve the effects of low cost, simple structure, and high mechanical connection strength

Inactive Publication Date: 2007-02-28
沈阳工业学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems existing in the thread pair connection of the existing pull-down forging press, and to provide a warp-changing thread pair connection device with simple structure, low processing cost, high connection strength and good locking performance and its design method

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  • Forge press reducing thread connecting device and its design method
  • Forge press reducing thread connecting device and its design method
  • Forge press reducing thread connecting device and its design method

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Embodiment Construction

[0027] As shown in the figure, the structural technical solution and design method of the present invention are further described in conjunction with examples.

[0028] As shown in Figure 1, the connecting device and design method of the variable-diameter threaded pair of the 3000T pull-down forging press includes the middle column 5, the upper beam 3, the variable-diameter nut 2, the base 7, the connecting stud 1, and the upper hammer head 4. On the upper beam 3, the lower hammer head 6 is fixed on the base 7, and the middle column 5 is arranged between the upper beam 3 and the base 7, and is fixedly connected by the connecting stud 1 and the reducing nut 2 respectively. As shown in Figures 2 and 3, the internal thread of the variable diameter thread pair is a variable diameter nut with a heightened dedendum and a circular arc tapered root diameter. Roll hardened finish. When the 3000T forging press is working, the connecting stud and the reducing nut of the variable-diamete...

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Abstract

A diameter-varying screw pair set as the connection unt of die forging press is composed of central vertical column, top transverse beam, base, diameter-varying nut and connecting screw bolt. Said central vertical column is connected between top transverse beam and base by said nuts and screw bolts. Its design method includes such steps as calculating the axial deformation of tooth for diameter-varying spiral thread, check the deformation value of each tooth, setting up the allowable tolerance of spiral thread for each tooth, calculating the tooth rooth height and radius of diameter-varying spiral thread, calculating the arc structure of tooth root for external spiral thread, and hardening the tooth surface.

Description

technical field [0001] The invention belongs to the connection mechanism technology of forging presses, and in particular relates to a variable-diameter screw pair device for connecting and fixing an upper beam of a pull-down forging press and a design method thereof. Background technique [0002] At present, the thread pair is usually used as the mechanical connection part, but this kind of thread connection structure, due to the cumulative error during processing, makes the effective screwing length in the axial direction short, and the force of each tooth is uneven, which reduces the strength of the mechanical connection. And the locking performance is poor, and it is easy to loosen. If high-strength alloy materials are used to process the thread pair with high precision, it will not only increase the cost of work, but also some mechanical connections cannot meet the requirements. For example, the middle column of the new forging machine 3000T pull-down forging press bea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J7/02F16B39/14B21J7/10
Inventor 巴鹏闫明印丛培田
Owner 沈阳工业学院
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