A kind of reverse package plunger closing process
A technology of plunger and wrapped column, which is applied in the field of closed plunger closing technology, which can solve the problems of high technical requirements for closing, difficulty in mass production, easy locking of products, etc., to achieve flexible rotation, consistent size and good clearance Effect
Active Publication Date: 2017-11-03
JIANGSU YUANYE HYDRAULIC MACHINERY
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- Abstract
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Problems solved by technology
[0003] The turn-up plunger has been well used in the high-pressure plunger pump industry due to its high pull-off force, but its closing technology requires high technology. The traditional closing method adopts the process of forming a closing die (half ring type) and adding a press machine. However, this method has the disadvantages of low efficiency and easy locking of the product, so it is difficult to carry out mass production
Method used
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Embodiment Construction
[0014] The following examples can enable those skilled in the art to understand the present invention more comprehensively, but the present invention is not limited to the scope of the described examples.
[0015] The turn-up plunger closing process of the present invention is realized through the following steps:
[0016] The first step, positioning: First, take a pair of sliding shoes and turn-up plungers to be processed, such as image 3 As shown, the length of the plunger 3 is 72±0.05mm, the diameter of the plunger 3 is 23.2mm, the caliber of the oil chamber 5 in the plunger 3 is 14mm, and there is a cavity at one end of the plunger 3 into which a sliding shoe can be embedded. 6. The cavity 6 is in the shape of a truncated sphere, and the diameter of the circle formed by the cavity 6 is 17mm, and the depth of the cavity 6 is 13.5mm, such as figure 2 As shown, the slider 2 has a ball head 4 embedded in the cavity 3 of the plunger 2, the ball head 4 is in the shape of a tr...
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Abstract
The invention relates to a nosing process for an inversely packed plunger. A pair of a to-be-machined piston shoe and the inversely packed plunger is taken at first, an oil cavity of the inner wall of the plunger is aligned to a vertically arranged stand column and then is inserted and positioned, and a ball head of the piston shoe is embedded into a cavity of the inversely packed plunger; and a machining mechanism is used for conducting nosing machining on the plunger and comprises three turning wheels which are evenly distributed around the plunger, after the plunger is positioned, the three turning wheels are driven by driving cylinders to synchronously extrude forwards, the plunger is deformed to wrap the piston shoe in 8-10 s, then the turning wheels retract to reset under the action of the driving cylinders, a plunger-piston-shoe assembly is taken out, and nosing is completed. The nosing process has the advantages that when the nosing process is adopted for conducting nosing operation on the inversely packed plunger in the specification, a positioning column is used for positioning, then the three turning wheels simultaneously conduct the nosing operation on the plunger, and meanwhile the stroke, bevels and rotation speed of the turning wheels are reasonably designed, so that the phenomenon of locking of the piston shoe and the plunger after nosing of the plunger is effectively avoided.
Description
technical field [0001] The invention relates to a plunger pump manufacturing process, in particular to a turn-up plunger closing process. Background technique [0002] A hydraulic pump is a hydraulic component that provides pressurized liquid for hydraulic transmission and is a type of pump. Its function is to convert the mechanical energy of the power machine (such as electric motor and internal combustion engine, etc.) into the pressure energy of the liquid. There are many factors that affect the service life of hydraulic pumps. In addition to the design and manufacturing factors of the pump itself, it is also related to the selection of some components related to the use of the pump (such as couplings, oil filters, etc.), and the operation during the test run. The working principle of a hydraulic pump is that movement brings about a change in the volume of the pump chamber, thereby compressing the fluid so that the fluid has pressure energy. [0003] The turn-up plunger...
Claims
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IPC IPC(8): B21D39/00B21D43/00
CPCB21D39/00B21D43/003
Inventor 马维维
Owner JIANGSU YUANYE HYDRAULIC MACHINERY