Conversion valve

A technology for steering valves and valve bodies, which is applied to valve details, multi-way valves, valve devices, etc. It can solve the problems of unmanufacturable assembly accuracy, rusting, fracture and damage of steering valves, etc., and achieve simple and reliable structure, stable operation, and easy to use Effect of life improvement

Active Publication Date: 2010-09-22
无锡书谱尔精密机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the disadvantages of the above-mentioned existing metal bearing steering valves that are prone to rust and breakage, while ceramic bearing steering valves require too high assembly accuracy and cannot be manufactured and used in production

Method used

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Embodiment Construction

[0015] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0016] Such as figure 1 , image 3 As shown, the hollow inner wall of the valve body 8 of the steering valve of the present invention is interference-fitted with a ceramic valve sleeve 4, and the ceramic valve core 5 is interference-fitted on the outer peripheral surface of the stainless steel central shaft, and the top of the stainless steel central shaft is driven by the motor 1. Block 2 is limited; such as figure 2 As shown, the peripheral surface of the ceramic valve core 5 is provided with a ring-shaped recessed water collection tank 6; the small gap between the ceramic valve core 5 and the ceramic valve sleeve 4 is matched, and the unilateral gap is 3-6 μm, preferably 4 μm; the valve sleeve 4 and the valve core 5 are axially positioned through the support of the upper valve cover 3 and the lower positioning tile 10, and the bottom...

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Abstract

The invention relates to a conversion valve. A hollow inner wall of a valve body is in interference fit with a ceramic valve sleeve; a ceramic valve core is driven by a top motor; a shifting block is used for limiting; the middle part of the valve body is provided with a water inlet, a water outlet, an upper drain pipe and a lower drain pipe; the periphery of the valve core is provided with a ring-shaped concave water collecting tank; the valve core is in integrated clearance fit with the valve sleeve; the position of the upper drain pipe corresponds to the water collecting tank; and the position of the lower drain pipe corresponds to a lower water collecting cavity. The integrated ceramic valve core of the invention has the advantages of reasonable structure, convenient assembly, high installing efficiency and low manufacturing cost, and capability of greatly improving the reliability of the conversion valve and prolonging the service life of the conversion valve.

Description

technical field [0001] The invention relates to the field of textile machinery accessories, in particular to a steering valve for a water jet loom. Background technique [0002] The water-jet loom uses a steering valve to realize the steering of the weaving shuttle. In the actual use process, the weaving shuttle performs high-speed and frequent reciprocating motions, so the steering valve needs to be switched quickly, usually 600 to 800 times per minute. . At present, the commonly used steering valve adopts the single-arm type single-bearing support method. Although the sealing ring is used for sealing, due to frequent rotation, the sealing ring will fail after long-term use (usually about one year), and water will easily seep at this time. Leakage to the metal bearing part will cause the bearing to rust. Once rust occurs, the rotating shaft will deviate, causing the single arm to generate a huge torque, causing the main shaft to twist or the motor load to increase and dama...

Claims

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Application Information

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IPC IPC(8): F16K11/085F16K31/04F16K25/02
Inventor 袁书清
Owner 无锡书谱尔精密机械科技有限公司
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