CN2915955Y

CN2915955Y - Improved structure for lifting-tilting synchronous system of loader

Info

Publication number: CN2915955Y
Application number: CN 200620100732
Authority: CN
Inventors: 余关金
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-25
Filing date: 2006-01-25
Publication date: 2007-06-27
Anticipated expiration: 2016-01-25

Abstract

An improved structure for lifting-tilting synchronous system of loader relating to a loader is provided. The main technical features are that: the multi-channel valve of a loader is designed into be a three-way valve additionally; a diverter valve and a reflux valve are arranged between the additional new valve, a tilting cylinder and a lifting -cylinder; Choosing a hole of the additional new valve at random to be connected with the diverter valve by a high-pressure oil tube, the two exits of the diverter valve are connected with the reflux valve, wherein, one reflux valve is connected with the lifting -cylinder by means of the high-pressure oil tube, then the other reflux valve is connected with the tilting cylinder by the high-pressure oil tube. When in use, the utility model can choose various functions according to different work sites, and thus not only reserve the original function, but also carry through lifting and tilting synchronously in poor conditions; the utility model can help the bucket to arrive at the best effect when the loader shovel materials with a synchronous operation of lifting and titling, and thus improve greatly the function of loader and reduce the production cost.

Description

A kind of improvement structure of lifting upset synchro system of loader

Technical field:

The utility model relates to the architecture advances that loader promotes the upset synchro system.

Background technology:

Loader uses lifting, overturn system all to adopt independent reversing arrangement (as Fig. 1) at present, it can not overturn when scraper bowl promotes when advancing work, can not promote again during upset, two continuous swings of control stick during operation, operating technology is difficult to hold, the loader working efficiency is poor, and energy consumption is big.

Summary of the invention:

The purpose of this utility model be to overcome above deficiency and provide a kind of promote the upset synchronous working loader.

The utility model is achieved by the following technical solution: the improvement structure of the lifting upset synchro system of this loader, comprise fuel tank, oil pump, multiple directional control valve, flow divider, return valve, hoist cylinder, overturning oil cylinder, it is three the tunnel that the multiple directional control valve that its major technique feature is a loader is set up, and is provided with flow divider, return valve between a way reversing valve of newly establishing and overturning oil cylinder, the hoist cylinder;

Arbitrary hole of a described way reversing valve of setting up connects flow divider with high-pressure oil pipe, and two outlets of flow divider connect return valve, and one of them return valve connects hoist cylinder with high-pressure oil pipe, and wherein another return valve connects overturning oil cylinder with high-pressure oil pipe.

The utility model changes original two way reversing valves into three the tunnel, and when the operation multiple directional control valve, because three road binders pipes communicate, return valve is disposed in the flow divider outlet, and return valve has played self-locking action under the pressure of oil pump, can not influence original function.Loader can be selected various functions according to different places when work, both kept original function, can under rugged environment, promote again, the simultaneously operating of overturning, its limit when advancing the shovel material promotes, the limit upset, impel scraper bowl to reach optimum efficiency, improve the function of loader greatly, reduced cost of production.

Description of drawings:

Fig. 1 is the structural representation of the lifting overturn system of original loader;

Fig. 2 is a structural representation of the present utility model.

The specific embodiment:

As Fig. 1, shown in Figure 2, this loader connects oil pump 2 with fuel tank 1 usefulness oil pipe 8, oil pump connects multiple directional control valve 3 with oil pipe, by the lifting reversal valve 2 of multiple directional control valve ' the hole connect hoist cylinder 6 with oil pipe, its another road upset reversal valve 3 ' the hole connect overturning oil cylinder 7 with oil pipe, the lifting of multiple directional control valve upset synchronous communicating valve 4 ' a hole connect flow divider 4 with oil pipe, return valve 5 is disposed in flow divider two outlets respectively, two return valves connect hoist cylinder and overturning oil cylinder with oil pipe respectively, wherein three way reversing valves 2 ', 3 ', 4 ' another hole communicate by oil pipe.Fuel feed hole 1 ' connection oil pump, oil outlet 5 ' connection fuel tank.

Claims

1, the improvement structure of a kind of lifting of loader upset synchro system, comprise fuel tank (1), oil pump (2), multiple directional control valve (3), flow divider (4), return valve (5), hoist cylinder (6), overturning oil cylinder (7), oil pipe (8), it is three the tunnel that the multiple directional control valve that it is characterized in that loader is set up, and is provided with flow divider, return valve between a way reversing valve of newly establishing and overturning oil cylinder, the hoist cylinder.

2, the improvement structure of the lifting of a kind of loader as claimed in claim 1 upset synchro system, the arbitrary hole that it is characterized in that a described way reversing valve of setting up connects flow divider with high-pressure oil pipe, two outlets of flow divider connect return valve, one of them return valve connects hoist cylinder with high-pressure oil pipe, and wherein another return valve connects overturning oil cylinder with high-pressure oil pipe.