Fuel injection pump idler wheel body assembly
A technology of roller bodies and fuel injection pumps, which is applied to fuel injection pumps, engine components, fuel injection devices, etc., and can solve the problems of fuel injection pump plunger stuck and wandering, etc., to achieve reduced plunger stuck, accurate positioning, and good The effect of contact
Inactive Publication Date: 2013-10-09
吴玲媛
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Problems solved by technology
As one of the main parts of the fuel injection pump, the roller assembly is mainly used to convert the rotary motion of the camshaft into the reciprocating motion of the plunger. The fuel injection pump plunger is stuck, and the phenomenon such as traveling
Method used
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[0010] The present invention is described below in conjunction with accompanying drawing.
[0011] attached figure 1 It is a fuel injection pump roller body assembly according to the present invention, which is mainly composed of a roller body 1, a roller 2, and a roller pin 3. The roller 2 is connected under the roller body 1 through the roller pin 3, and the roller 2 and the roller pin 3 is provided with a roller ferrule 4, the roller pin 3 is provided with a cutting groove 5; the cutting groove 5 is clamped with a limit steel wire retaining ring 6; one end face of the limit steel wire retaining ring 6 is close to The end face 7 of the roller ferrule is next to the end face 8 of the inner body of the roller.
[0012] The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present invention. Substantial equivalent changes or modifications shall fall within the protection scope of the present invention.
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The invention discloses a fuel injection pump idler wheel body assembly. The fuel injection pump idler wheel body assembly is mainly composed of an idler wheel body, an idler wheel and an idler wheel pin, wherein the idler wheel is connected below the idler wheel body through the idler wheel pin, an idler wheel sleeve ring is arranged between the idler wheel and the idler wheel pin, and a cutting groove is formed in the idler wheel pin; a limiting steel wire check ring is connected to the cutting groove in a clamped mode; one end face of the limiting steel wire check ring is in close proximity to one end face of the idler wheel sleeve ring, and the other end face of the limiting steel wire check ring is in close proximity to the inner end face of the idler wheel body. According to the scheme of the fuel injection pump idler wheel body assembly, due to the fact that the limiting steel wire check ring is installed on the idler wheel pin, rotating of the idler wheel body is limited, good contact between a cam and the idler wheel is ensured, the fuel injection pump idler wheel body assembly is accurate and reliable in positioning, and the phenomena of jamming, traveling blocking and the like of a plunger of a fuel injection pump are reduced.
Description
technical field [0001] The invention relates to a roller body, in particular to a fuel injection pump roller body assembly, which belongs to the technical field of engines. Background technique [0002] The fuel injection pump is the heart of the engine. Whether the engine can work normally depends on the working condition of the fuel injection pump. The performance of the fuel injection pump is not only closely related to the plunger and the oil outlet valve, but also the working condition of the roller assembly is also decisive for it. Impact. As one of the main parts of the fuel injection pump, the roller body assembly is mainly used to convert the rotary motion of the camshaft into the reciprocating motion of the plunger. The plunger of the fuel injection pump is stuck, and there are phenomena such as traveling. Contents of the invention [0003] In view of the above-mentioned technical problems, the purpose of the present invention is to provide a fuel injection pum...
Claims
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IPC IPC(8): F02M59/10
Inventor 吴玲媛
Owner 吴玲媛