Unlock instant, AI-driven research and patent intelligence for your innovation.

Manufacturing method of floating side plates with novel unloading grooves

A technology of floating side plate and manufacturing method, which is applied in the direction of machines/engines, liquid fuel engines, rotary piston type/oscillating piston type pump components, etc., can solve problems affecting the working performance and service life of gear pumps, and achieve noise prevention and the effect of cavitation

Active Publication Date: 2017-05-31
XUZHOU KEYUAN HYDRAULIC
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Trapped oil phenomenon is the main cause of gear pump noise, and also affects the performance and service life of gear pumps

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manufacturing method of floating side plates with novel unloading grooves
  • Manufacturing method of floating side plates with novel unloading grooves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be further described through specific embodiments below in conjunction with the accompanying drawings.

[0020] Such as figure 1 As shown, when the closed volume V changes from small to large, the unloading groove communicates V with the oil suction chamber; when the closed volume V changes from large to small, the unloading groove communicates V with the pressure oil chamber, but this design is based on the The side clearance is large, and the premise that V1 and V2 are completely unblocked is not completely consistent with the actual situation. The larger the backlash, the higher the outlet pressure, the lower the volumetric efficiency, and the lighter the oil trapping phenomenon. However, as the operating conditions of the main engine become more and more complex, higher requirements are put forward for the working pressure of the gear pump. Therefore, the requirement for the tooth side clearance of the high-pressure gear pump is getting s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a manufacturing method of floating side plates with novel unloading grooves. The method includes the following steps that a two-dimensional engagement graph of gears is made through engineering drawing software and is rotated to the position where engagement points are symmetrical about a pitch point, an S-shaped oil seal area can be formed at the moment, and the shapes of the unloading grooves are formed on the gear side plates along the S shape. The unloading grooves of the special shape are formed in the floating side plates, and therefore gear pump noise and cavitation phenomena are more effectively prevented.

Description

technical field [0001] The invention relates to an unloading groove, in particular to a method for manufacturing a floating side plate with a new unloading groove. Background technique [0002] In the design process of the external meshing gear pump, in order to make the transmission of the gears coherent, the overlap coefficient of the gears must be greater than 1. A closed volume is formed between them. With the rotation of the gear, the closed volume V will change from large to small and from small to large. When the closed volume V changes from large to small, the trapped oil will be squeezed and the pressure will increase. The sharp rise causes the gear and bearing to be subjected to a large additional load, and at the same time, a part of the oil is forced out from the gap of the joint surface, resulting in strong vibration and loud noise; when the closed volume increases, the pressure drops sharply, forming The partial vacuum separates the gas dissolved in the oil, r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F04C15/00F04C2/18
CPCF04C2/18F04C15/00F04C2240/80
Inventor 郁静韩永进韩华袁世维姜虎郭帅
Owner XUZHOU KEYUAN HYDRAULIC