CN205876489U

CN205876489U - Link means of double -crankshaft engine

Info

Publication number: CN205876489U
Application number: CN201620596327.4U
Authority: CN
Inventors: 王蓬波; 王平; 刘银平
Original assignee: Xuzhou Xianbo Engine Mechanical Technology Co Ltd
Current assignee: Xuzhou Xianbo Engine Mechanical Technology Co Ltd
Priority date: 2016-06-16
Filing date: 2016-06-16
Publication date: 2017-01-11
Anticipated expiration: 2026-06-16

Abstract

The utility model discloses a link means of double -crankshaft engine belongs to the engine technology field. The utility model discloses a with the connecting rod slot grafting complex connecting rod main part of piston guide bar, the both ends of connecting rod main part are fixed with the connecting rod bearing shell lid with releasable connection spare, and there is semicircle butt joint hole I at the both ends of connecting rod main part, and there is semicircle butt joint hole II the inboard of the connecting rod bearing shell lid of every end, and the semicircle docks hole I and forms and crank pin articulated crank pin hole with the butt joint of semicircle butt joint hole II. The utility model discloses a being connected of piston guide bar and connecting rod, connecting rod all are detachable structure with being connected of bent axle, and the manufacturability is good, has increased intensity, the assembly of being convenient for, and the connecting rod has wear -resisting design with the connecting portion of piston, has improved the reliability of wear resistance and complete machine.

Description

The linkage of twin crankshaft engine

Technical field

This utility model relates to the connecting rod of a kind of engine piston drive mechanism, belongs to technical field of engines.

Background technology

At present, either gasoline engine or diesel engine, BTHE is more much lower than theoretical thermal efficiency, causes this existing The one of the main reasons of elephant be the parts such as the cylinder sleeve, the piston that directly contact with high-temperature fuel gas be the metal poor by insulation effect Material manufactures, and the metal material persistently cooling system of job demand dependence reliably constantly cools down what it was drawn from airtight combustor Heat energy.Ceramic material is a kind of preferable material of insulation effect, the portion that the parts such as cylinder sleeve, piston directly contact with high-temperature fuel gas If point using a ceramic material manufacture just can improve BTHE, but be because the fragility of ceramic material and cause low reliably Property become its application technology barrier on the engine.

Patent (number of patent application: CN 201410653964.6) that the present inventor has applied for although to a certain extent Solve the problems referred to above, but, its process for machining and manufacturing is more complicated, and the friction surface abrasion of relative motion is more serious, and some are thin Joint problem such as piston rod is to be resolved and perfect with the connectivity problem of double-crank mechanism linkage component.

Summary of the invention

In place of overcoming above-mentioned the deficiencies in the prior art, this utility model provides the connecting rod dress of a kind of twin crankshaft engine Putting, in existing disclosed patent, (such as number of patent application: CN 201410653964.6) proposes a kind of double-crankshaft device composition Cross crank gear, connection and the assembling solving wherein piston rod and double-crank mechanism linkage component of the present utility model is asked Topic.

This utility model is achieved by the following technical solution: the linkage of a kind of twin crankshaft engine, and it includes The link body coordinated with the connecting rod slot grafting of piston guide bar, the two ends of link body are fixed with connecting rod with releasable connection part FE Tiler, there is semicircle butt hole I at the two ends of link body, and there is semicircle butt hole II the inner side of the connecting rod FE Tiler often held, and semicircle docks Hole I and semicircle butt hole II docks and forms hinged with crank-pin crank pin hole.

The upper and lower side of described link body makes wearing layer.

Described wearing layer is wear-resisting tile fragment, and wear-resisting tile fragment is embedded in described link body by pin.

Described releasable connection part is screw, and the upper and lower sides of the two ends semicircle butt hole I of described link body makes to be had and spiral shell The screwed hole that nail is adaptive, described connecting rod bearing shell lid makes and has the connection through hole adaptive with screwed hole.

Having lightening hole in described link body, there is lightening recesses the both sides of link body.

The upper and lower side of described link body and connecting rod slot contact surface are fabricated to arc surface.

Bearing shell is had between described crank pin hole and crank-pin.

Described wearing layer is the wearing layer that the surface of described link body is plated to.

The beneficial effects of the utility model are: piston guide bar of the present utility model and the connection of connecting rod, connecting rod and bent axle Connection be all removable structure, good manufacturability, add intensity, it is simple to assembling, the connecting portion of connecting rod and piston has wear design, Improve the reliability of anti-wear performance and complete machine.

Be linked and packed by of the present utility model, by stress action spot from high temperature, high pressure and piston at a high speed and cylinder sleeve toward The easy regions of lubrication of other low temperature is transferred in the multiple zone of action, and connecting rod of the present utility model and piston guide bar are exactly that low temperature easily lubricates Region, it is achieved exist without other active force in addition to piston ring back pressure between piston and cylinder, it is achieved use ceramic material manufacture Cylinder sleeve, the parts such as piston be solely subjected to the pressure loading of high-temperature fuel gas, it is achieved do not increasing ceramic material toughness and be manufactured into Its reliability and service life is improved on the premise of Ben.

Accompanying drawing explanation

Below according to drawings and Examples, this utility model is further illustrated.

Fig. 1 is this utility model internal structure schematic diagram；

Fig. 2 is this utility model structure chart；

Fig. 3 is the A-A sectional view of Fig. 2；

Fig. 4 is the B-B sectional view of Fig. 2；

Fig. 5 is that this utility model uses state cut-away view；

Fig. 6 is that this utility model uses state stereogram.

In figure, 1, link body, 1-1, lightening hole, 1-2, lightening recesses, 1-3, screwed hole, 2, connecting rod FE Tiler, 2-1, company Connect hole, 3, crank pin hole, 3-1, semicircle butt hole I, 3-2, semicircle butt hole II, 4, wearing layer, 5, wear-resisting tile fragment, 6, pin, 7, bent axle, 7-1, crank-pin, 8, piston guide bar, 8-1, connecting rod slot.

Detailed description of the invention

The linkage of a kind of twin crankshaft engine as shown in figs 1 to 6, it includes that the connecting rod with piston guide bar 8 is inserted The link body 1 that groove 8-1 grafting coordinates, the two ends of link body 1 are fixed with connecting rod FE Tiler 2, link body 1 with releasable connection part Two ends have semicircle butt hole I3-1, there are semicircle butt hole II3-2, semicircle butt hole I3-1 in the inner side of the connecting rod FE Tiler 2 often held Dock with semicircle butt hole II3-2 and form hinged with crank-pin 7-1 crank pin hole 3.

The upper and lower side of described link body 1 makes wearing layer 4.

Described wearing layer 4 is wear-resisting tile fragment 5, and wear-resisting tile fragment 5 is embedded in described link body 1 by pin 6.

Described releasable connection part is screw, and the upper and lower sides of the two ends semicircle butt hole I3-1 of described link body 1 makes to be had The screwed hole 1-3 adaptive with screw, described connecting rod FE Tiler 2 makes and has the connection through hole 2-1 adaptive with screwed hole 1-3.

Lightening hole 1-1, the both sides of link body 1 is had to have lightening recesses 1-2 in described link body 1.

The upper and lower side of described link body 1 and connecting rod slot 8-1 contact surface are fabricated to arc surface.

Bearing shell is had between described crank pin hole 3 and crank-pin 7-1.

Described wearing layer 4 is the wearing layer that the surface of described link body 1 is plated to.

Piston guide bar of the present utility model and the connection of connecting rod, connecting rod are all removable structures with the connection of bent axle, technique Property good, add intensity, it is simple to assembling, the connecting portion of connecting rod and piston has wear design, improves anti-wear performance and complete machine Reliability.

With reference to Fig. 5-Fig. 6, double-crankshaft, connecting rod and piston constitute double-crank mechanism, and the sealed end of piston separates with guide end, It is linked and packed by of the present utility model, by stress action spot by high temperature, high pressure and piston at a high speed and cylinder sleeve reciprocating district The easy regions of lubrication of other low temperature is transferred in territory, and connecting rod of the present utility model and piston guide bar are exactly the easy regions of lubrication of low temperature, real Existing exist without other active force except piston ring back pressure in addition between piston and cylinder, it is achieved use ceramic material manufacture cylinder sleeve, The parts such as piston are solely subjected to the pressure loading of high-temperature fuel gas, it is achieved in the premise not increasing ceramic material toughness and manufacturing cost Lower its reliability of raising and service life.

Claims

1. the linkage of a twin crankshaft engine, it is characterised in that: it includes and the connecting rod slot of piston guide bar (8) (8-1) link body (1) that grafting coordinates, the two ends of link body (1) are fixed with connecting rod FE Tiler (2) with releasable connection part, even There is semicircle butt hole I (3-1) at the two ends of bar main body (1), and there is semicircle butt hole II (3-2) inner side of the connecting rod FE Tiler (2) often held, Semicircle butt hole I (3-1) docks with semicircle butt hole II (3-2) and forms the crank pin hole (3) hinged with crank-pin (7-1).

The linkage of twin crankshaft engine the most according to claim 1, it is characterised in that: described link body (1) Upper and lower side makes wearing layer (4).

The linkage of twin crankshaft engine the most according to claim 2, it is characterised in that: described wearing layer (4) is resistance to Mill tile fragment (5), wear-resisting tile fragment (5) is embedded in described link body (1) by pin (6).

The linkage of twin crankshaft engine the most according to claim 1, it is characterised in that: described releasable connection part is spiral shell Nail, the upper and lower sides of the two ends semicircle butt hole I (3-1) of described link body (1) makes the screwed hole (1-adaptive with screw 3), the upper making of described connecting rod FE Tiler (2) has the connection through hole (2-1) adaptive with screwed hole (1-3).

The linkage of twin crankshaft engine the most according to claim 1, it is characterised in that: described link body (1) On have lightening hole (1-1), the both sides of link body (1) to have lightening recesses (1-2).

The linkage of twin crankshaft engine the most according to claim 1, it is characterised in that: described link body (1) Upper and lower side and connecting rod slot (8-1) contact surface are fabricated to arc surface.

The linkage of twin crankshaft engine the most according to claim 1, it is characterised in that: described crank pin hole (3) And there is bearing shell between crank-pin (7-1).

The linkage of twin crankshaft engine the most according to claim 2, it is characterised in that: described wearing layer (4) is institute State the wearing layer that the surface of link body (1) is plated to.