Internal spiral face processing equipment and its processing technology

A surface processing and internal helical technology, applied in the field of internal helical surface processing equipment and its processing technology, can solve the problems of reducing drilling tool power, poor sealing, uneven thickness, etc., to improve work efficiency, improve mechanical properties, increase additional Focus on the effect

Inactive Publication Date: 2008-03-26
WEIFANG LUTAI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The screw drilling tool is the most widely used drilling tool in oil drilling at home and abroad, and the motor part in the drilling tool is one of the keys. It is directly related to the service life and working efficiency of the entire drilling rig, but it is troubled by the product quality. The key problem that has not been solved so far is the uneven thickness of the rubber lining in the stator shell of the screw drilling tool. As shown in Figure 1, the cavity in the stator shell is a cylindrical surface, and the cross section of the rotor is a helical surface. There is a rubber layer between the body and the rotor, resulting in uneven thickness of the rubber layer. Due to the uneven thickness of the rubber layer, the following defects will be caused: 1. Because the thermal expansion coefficient of the rubber is too large, the spiral shape after injection and the mold The helical shape changes, resulting in poor sealing; 2. In order to obtain the helical shape required by the technology, it is necessary to use rubber inste...

Method used

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  • Internal spiral face processing equipment and its processing technology
  • Internal spiral face processing equipment and its processing technology
  • Internal spiral face processing equipment and its processing technology

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Embodiment Construction

[0037]Embodiment, as shown in Figure 3, the internal helical surface processing equipment includes a milling device and a broaching device, and the milling device includes a bed body 1, and the bed body 1 is provided with a cutter bar 15 and a cutter bar support frame with a cutter 17. The knife bar support frame 17 is provided with a knife bar clamp tile 24, the knife bar 15 is supported and fixed by the knife bar clamp tile 24 installed on the bed body 1, and a transmission shaft 16 is arranged inside the knife bar 15, and the end of the transmission shaft 16 It is connected with the tool, and the other end is connected with the motor 18. The bed body 1 is provided with a carriage 3 and a floating surface guide rail 19. Both sides of the carriage 3 have protective plates 4 perpendicular to the plane of the carriage 3. The carriage 3 is installed on the floating surface. On the guide rail 19, the carriage 3 is provided with a turbine 14 and a turbine bracket 13, the turbine 14...

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PUM

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Abstract

The present invention discloses one kind of inner helical surface machining apparatus and process. The machining apparatus includes one milling machine and one broaching machine. The milling machine for rough machining includes one machine body, one cutter bar with cutter and driving shaft connected to the cutter, one first driving mechanism connected to the driving shaft, one turbine with one through hole for the workpiece to penetrate through coaxially with the cutter bar and one second driving mechanism connected to the turbine. The broaching machine is for the finish machining of the inner helical surface. The present invention has high inner helical surface machining precision, and high machining efficiency.

Description

technical field [0001] The invention designs a processing device and a processing technology for a screw drilling tool stator shell, and specifically relates to a processing device and a processing technology for an inner helical surface. Background technique [0002] The screw drilling tool is the most widely used drilling tool in oil drilling at home and abroad, and the motor part in the drilling tool is one of the keys. It is directly related to the service life and working efficiency of the entire drilling rig, but it is troubled by the product quality. The key problem that has not been solved so far is the uneven thickness of the rubber lining in the stator shell of the screw drilling tool. As shown in Figure 1, the cavity in the stator shell is a cylindrical surface, and the cross section of the rotor is a helical surface. There is a rubber layer between the body and the rotor, resulting in uneven thickness of the rubber layer. Due to the uneven thickness of the rubber...

Claims

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Application Information

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IPC IPC(8): B23C3/32B23D37/16
CPCB23C3/32B23D37/16
Inventor 郭太利张春山
Owner WEIFANG LUTAI MACHINERY
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