CN201284676Y

CN201284676Y - Vertical axis general petrol engine crankcase cover with engine oil pump

Info

Publication number: CN201284676Y
Application number: CNU200820100288XU
Authority: CN
Inventors: 罗伟; 刘海
Original assignee: Chongqing Zongshen General Power Machine Co Ltd
Current assignee: Chongqing Zongshen General Power Machine Co Ltd
Priority date: 2008-10-21
Filing date: 2008-10-21
Publication date: 2009-08-05
Anticipated expiration: 2018-10-21

Abstract

The utility model discloses a vertical shaft common gasoline machine crankcase cover with a machine oil pump, which comprises a case inner face and a side face, wherein, a position of the case inner face is provided with a machine oil pump casing corresponding to a balancing shaft; the side face is provided with an oil inlet pipe joint and an oil outlet pipe joint; and an oil inlet and an oil outlet of the machine oil pump casing are respectively communicated with the oil inlet pipe joint and the oil outlet pipe joint. The utility model has the advantages as follows: because the simple machine oil pump casing structure is arranged on the crankcase cover, the crankcase cover can be used as the pump casing of a machine oil pump, parts of elements can be omitted; and the power problem of the machine oil pump is solved by utilizing the balancing shaft, the space installing the machine oil pump is omitted, the structure of the entire engine is simple, and the cost needs of the common gasoline engine are satisfied.

Description

The vertical shaft general gasoline engines crankcase cover of band oil pump

Technical field

The utility model relates to engine crankcase, especially has the vertical shaft general-purpose petrol engine crankshaft case of trunnion shaft to cover the structure of placement machine oil pump.

Background technique

Crankcase is one of general gasoline engines critical piece, in establish bent axle, connecting rod, what have also is provided with trunnion shaft, motion component such as speed regulation gear, crankcase cover is formed crankcase with crankcase body, crankcase cover is to form through fine finishing after casting according to the contour shape of crankcase body, shape is as dish, the branch mailbox inner face, case outside and side, the main feature of general-purpose petrol engine is simple in structure, with low cost, general vertical shaft general-purpose petrol engine all will be provided with oil pump, be bent axle, motion component such as gas distribution system provide lubricant oil, general oil pump mainly is made up of pump case and rotor two-part, pump case is the die cavity by compressor oil, the tube head of turnover machine oil, key elements such as the erecting device of rotor are formed an aggregate, rotor mainly is gear or blade, the pump type component of plunger and so on, when the motivational drive rotor, gear makes oil suction chamber form low pressure, produce suction, go out oil pocket and form high pressure, produce the pressure of output machine oil, in a word, motor fitting machine oil pump need provide pump case, rotor, power source etc., complex structure cost height can not satisfy the needs of general-purpose petrol engine.

The model utility content

The purpose of this utility model is: a kind of vertical shaft general gasoline engines crankcase cover with oil pump is provided, the pump case of oil pump simply is set on the crankcase cover, reduce the cost of petrol engine integral body.

The vertical shaft general gasoline engines crankcase cover of band oil pump of the present utility model, comprise case inner face and side, corresponding trunnion shaft position is provided with the oil pump pump case on the described case inner face, the side is provided with inlet connector and flowline connection to subsea, and the filler opening of oil pump pump case and oil outlet are communicated with inlet connector and flowline connection to subsea respectively.

During the crankcase cover assembling, the rotor of oil pump is installed in the oil pump pump case of above-mentioned setting, form complete oil pump, the common machine oil pump of its working principle and mode and prior art is just the same, crankcase cover integral body is taken into account the pump case as oil pump, the power source that wherein drives rotor rotation can rely on the trunnion shaft in the crankcase to finish, the other junctor oil hydraulic-pump rotor of the axle head of trunnion shaft axle is got final product, structural type can adopt any Connecting format of prior art, inlet connector and flowline connection to subsea are arranged on that to leave the oil pump pump case nearest, the side of most convenient processing, and take over the road in addition, to other structures not influence fully of crankcase.

The utlity model has following advantage: owing to simple oil pump pump shell structure on crankcase cover, crankcase cover is taken into account the pump case as oil pump, can omit the part of oil pump, utilize trunnion shaft to solve the oil pump dynamical problem, also omit the space of fitting machine oil pump, make whole engine structure simple, satisfy the cost requirement of general-purpose petrol engine.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the structural representation sketch of the vertical shaft general gasoline engines crankcase cover of band oil pump of the present utility model;

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the B-B sectional view of Fig. 1.

Embodiment

Referring to accompanying drawing 1, Fig. 2, Fig. 3, it is mode of execution of vertical shaft general gasoline engines crankcase cover of band oil pump of the present utility model, crankcase cover according to the casting of crankcase body contour shape, shape such as dish type, generally be divided into case inner face 2, case outside and side 1, case inner face 2 is exactly the one side that is positioned at crankcase inside when assembling, case outside is exactly to be positioned at the outer one side of crankcase when assembling, side 1 be exactly around a week, the crankcase that the utility model is used is provided with the trunnion shaft (not shown), trunnion shaft is by the bent axle gear driven, reverse sync is rotated, be used for the balance crankshaft rotation inertia force, the rotation inertia force that piston converts etc., corresponding trunnion shaft position is provided with an oil pump pump case 3 on the case inner face 2, the right lower side of position crankcase cover as shown in Figure 1, the structural type of oil pump pump case 3 is the same with the pump case of prior art, after the fitting machine oil hydraulic-pump rotor (not shown), the axle of rotor of engine oil pump just can be connected with trunnion shaft, rotate synchronously, solve the oil pump dynamical problem, side 1 is provided with inlet connector 11 and flowline connection to subsea 12, the filler opening 31 of oil pump pump case 3 and oil outlet 32 are communicated with inlet connector 11 and flowline connection to subsea 12 respectively, inlet connector 11 and flowline connection to subsea 12 external oil inlet pipe and pressure oil pipes, crankcase cover is taken into account the effect as the pump case of oil pump.

Claims

1. vertical shaft general gasoline engines crankcase cover with oil pump, comprise case inner face and side, it is characterized in that: described case inner face (2) is gone up corresponding trunnion shaft position and is provided with oil pump pump case (3), side (1) is provided with inlet connector (11) and flowline connection to subsea (12), and the filler opening (31) of oil pump pump case (3) and oil outlet (32) are communicated with inlet connector (11) and flowline connection to subsea (12) respectively.