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Tightening limiting structure of filter and tightening process

A technology of limiting structure and filter, which is applied in the direction of machine/engine, engine components, liquid fuel feeder, etc., can solve the problem that the soft sealing ring is difficult to play a sealing role, reduce the yield of tightening operations, and a single torque control method or angle control method, etc.

Active Publication Date: 2018-07-10
苏州斯雷克机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the filter assembly process in the prior art, the accuracy of the tightening operation between the upper cover and the lower housing directly determines the airtightness of the filter cavity. In order to improve the sealing accuracy, the threaded section at the lower end of the upper cover The upper smooth section is provided with a sealing ring, and the soft sealing ring is twisted and deformed during the tightening process, and it is difficult to play a sealing role; secondly, in the traditional tightening process, a single torque control method or angle control method is often adopted, which cannot be adjusted according to the actual situation of the sealing ring. Take corresponding measures in time under the stress situation, greatly reducing the yield of tightening operations

Method used

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  • Tightening limiting structure of filter and tightening process
  • Tightening limiting structure of filter and tightening process
  • Tightening limiting structure of filter and tightening process

Examples

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Effect test

specific Embodiment example 1

[0037] A tightening limit structure for a filter includes: an upper cover 1, a lower housing 2, and a base of the lower housing 2 with a combined sensor 3; the upper cover 1 includes a pressing handle 11, a hand The pump cover 12, the diaphragm 13, the support plate 14, the spring 15, the upper cover body 16, the support plate 14 with the spring 15 fixed on the lower end surface is placed in the upper convex card cavity of the diaphragm 13, and the diaphragm 13 is installed on the upper cover In the annular groove at the upper end of the body 16, the lower end of the pressing handle 11 is inlaid and fixed in the central hole of the hand pump cover 12, and the upper end of the pressing handle 11 extends a certain length outside the central hole of the hand pump cover 12. The spring 15 is compressed After a certain distance, the hand pump cover 12 is tightly attached to the upper cover body 16 and screwed in the circumferential direction. The circumferential side of the upper cove...

specific Embodiment example 2

[0051] A tightening limit structure for a filter includes: an upper cover 1, a lower housing 2, and a base of the lower housing 2 with a combined sensor 3; the upper cover 1 includes a pressing handle 11, a hand The pump cover 12, the diaphragm 13, the support plate 14, the spring 15, the upper cover body 16, the support plate 14 with the spring 15 fixed on the lower end surface is placed in the upper convex card cavity of the diaphragm 13, and the diaphragm 13 is installed on the upper cover In the annular groove at the upper end of the body 16, the lower end of the pressing handle 11 is inlaid and fixed in the central hole of the hand pump cover 12, and the upper end of the pressing handle 11 extends a certain length outside the central hole of the hand pump cover 12. The spring 15 is compressed After a certain distance, the hand pump cover 12 is tightly attached to the upper cover body 16 and screwed in the circumferential direction. The circumferential side of the upper cove...

specific Embodiment example 3

[0065] A tightening limit structure for a filter includes: an upper cover 1, a lower housing 2, and a base of the lower housing 2 with a combined sensor 3; the upper cover 1 includes a pressing handle 11, a hand The pump cover 12, the diaphragm 13, the support plate 14, the spring 15, the upper cover body 16, the support plate 14 with the spring 15 fixed on the lower end surface is placed in the upper convex card cavity of the diaphragm 13, and the diaphragm 13 is installed on the upper cover In the ring groove at the upper end of the body 16, the lower end of the pressing handle 11 is inlaid and fixed in the central hole of the hand pump cover 12, and the upper end of the pressing handle 11 extends a certain length outside the central hole of the hand pump cover 12. The spring 15 is compressed After a certain distance, the hand pump cover 12 is tightly attached to the upper cover body 16 and screwed in the circumferential direction. The circumferential side of the upper cover b...

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Abstract

The invention discloses a tightening limiting structure of a filter. An upper cover body and a lower shell are provided with a buckle positioning module with a rotating angle of 0.8-1.5 degrees; the buckle positioning module comprises an L-shaped buckle plate on the cover plate edge of the upper cover body, and a buckle groove on the upper end surface of the upper shell; and through a buckling effect between the L-shaped buckle plate and the buckle groove, reduction of the internal tightness of a filter cavity due to reversal in the reverse torque suffering process is prevented when the anglepositioning precision in a tightening process is improved. The tightening process with the filter with the tightening limiting structure comprises the steps of tool clamping fixation, initial positiondetection, tightening and tightening limiting; and in the tightening and tightening limiting steps, part reversal operation is related, and can be controlled by a control system according to data transmitted by a torque sensor or according to a friction torque value and an angle rotation lap number, so that the integrity of a sealing ring in the tightening procedure is further guaranteed, and thetightness of the filter and the yield in the tightening procedure are improved.

Description

Technical field [0001] The invention relates to the field of filter mechanical equipment technology and assembly technology for filtering and separating oil, and specifically to a tightening limit structure and tightening process of a filter. Background technique [0002] The function of the gasoline filter is to filter out the moisture and impurities in the gasoline. When the engine is working, the fuel passes through the oil inlet pipe and enters the sedimentation cup of the filter under the action of the gasoline pump. As the volume becomes larger and the flow rate becomes smaller at this time, the water and impurity particles heavier than the oil settle at the bottom of the cup. The light impurity flows to the filter element with the fuel, and the clean fuel penetrates into the inside of the filter element from the pores of the filter element. It flows out through the oil pipe to prevent impurities in the oil from clogging the pipe, avoiding damage to the fuel injector, fuel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M37/22
CPCF02M37/22
Inventor 蒋庆松
Owner 苏州斯雷克机电科技有限公司