Oil hydraulic pump of combination booster

Abstract

The invention discloses an oil hydraulic pump of a combination booster. The front end of an oil storage cylinder is fixedly connected with a seat through a first thread pair, and the tail of the oil storage cylinder is hermetically welded with a fixing plate by means of welding a solid ring. A tail bearing block is embedded in and fixedly connected with a matching groove of the fixing plate, and thus the whole tail bearing block can be subjected to rotational connection with the matching groove. A recessed conical mold cavity is formed on the upper portion of the oil storage cylinder, a matching hole is formed at the bottom of the mold cavity, an external thread of a screw plug component can penetrate the matching hole from bottom to top, and a tightening nut is tightened and sealed with the screw plug component through a second thread pair. An unthreaded section, an internal thread and a sealed unthreaded section are sequentially arranged in the middle of a screw plug of the screw plug component from bottom to top. An oil pointer bolt component is fixedly connected and sealed with the internal thread of the screw plug of the screw plug component through a third thread pair, and the lower section of the oil pointer bolt component is a meshed oil-level observation section. The oil hydraulic pump has the advantages of good manufacturability, high adaptability, low cost and capability of eliminating oil leakage hazard.

Description

technical field [0001] The invention relates to an oil pressure pump, in particular to an oil pressure pump used for a combined booster. Background technique [0002] According to Pascal's principle, the pressure of the oil in the airtight connector can be transmitted in all directions unchanged, and in the process of transmitting the oil pressure, people change the effective area and function of the pump core of the power input pump or lift The size of the effective pressure-bearing area of ​​the piston of the working oil cylinder of the load achieves the purpose of amplifying the effective force for lifting the load. In actual work and life or disaster relief activities, a combined booster is a good application of the hydraulic principle, and the oil pressure is timely and properly connected to the hydraulic cylinder, hydraulic expander, various The hydraulic components and other related connecting parts of the lifting platform can correctly play various expected combinat...

AI Technical Summary

Problems solved by technology

So what is the effect of this commonly used oil pressure pump in actual use? After a lot of physical research, the author realizes that the above-mentioned oil pressure pumps that are actually separated are generally in good use, but some oil pressure pumps are still in use. In some uneven sites or in earthquake relief or traffic accident rescue, the oil volume and air volume in the oil storage tank of the hydraulic pump are not ideal, either there is too much oil, and the air is too small to make the oil absorption not smooth, or the oil If there is less, the working cylinder with a larger piston stroke and more oil will not be able to achieve the desired lift effect

After analysis and research, it is believed that although this type of hydraulic pump that is commonly produced and used now has serialized varieties with various load capacities, its tail-type refueling, tail-type support seat and tail-inserted oil level are all in the structural design and There are many factors such as high cost and difficult processing in the manufacturing process, and when the ground is uneven in use, the tail support seat deflects and deforms during the self-positioning adjustment, resulting in loosening of the threaded pairs of the tail coupling and the oil storage tank. And the sealing failure oil leakage occurs; even if it is tightened again after the thread pair is loose, there will be at least the oil-less phenomenon of the oil pressure pump, and the consequences will be very serious, and the oil pump will be erected artificially when refueling after assembly. , it is very inconvenient and inaccurate to control the amount of refueling, and it is not easy to make the oil pressure pump lie flat to disassemble the oil mark at the tail to observe the oil storage amount of the oil pressure pump during use

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