A Feedback Controller Used in Hydraulic System
A hydraulic system and controller technology, applied in the field of feedback controllers, can solve problems such as useless work, affecting system life, and energy waste, and achieve the effects of compact structure, low cost, and convenient use
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Embodiment 1
[0042] Embodiment 1: as figure 1 As shown, the hydraulic system generally includes a power source 2, a variable pump 1 connected to the power source 2, a system oil circuit 17 connected to the variable pump 1, and an actuator 3 connected to the system oil circuit 17. For the convenience of illustration, the The axial direction is the X direction, the axial direction of the displacement control rod 10 is the Y direction, and the direction perpendicular to the X-Y plane is the Z direction. When those skilled in the art pass this embodiment on the basis of common knowledge, the deformation structure in the X / Y direction also belongs to the scope of protection. In this embodiment, the control mechanism 5 is connected to the main hydraulic system through the feedback oil circuit 18 and the tee 4. It can be connected to the main hydraulic pipeline, such as the oil outlet pipeline of the variable pump 1, or it can be connected to the common or main working oil pipeline, such as the p...
Embodiment 2
[0048] Embodiment 2: as figure 2 As shown, there is no change in the basic structure of the present embodiment compared with the first embodiment, except that α is the angle between the extension line of the first oblique bar 9 and the tie bar 7 .
Embodiment 3
[0049] Embodiment 3: as image 3 , 5 As shown in -7, the basic structure of this embodiment remains the same as that of Embodiment 1. The difference is that a feedback mechanism 27 is provided on the feedback oil circuit 18, and the feedback mechanism 27 includes a first pressure limiter connected in parallel on the feedback oil circuit 18. The valve 28, the second pressure limiting valve 29 and the limit spring 30 arranged on the feedback rod 14, the limit spring 30 is preferably arranged in the rod cavity of the feedback oil cylinder 16, and the limit spring 30 can also be arranged on the feedback rod 14. In other positions, the limiting pressure of the first pressure limiting valve 28 is lower than the limiting pressure of the second pressure limiting valve 29;
[0050] Along the left end of the pull rod 7, there are a second slanting bar 42 and a third slanting bar 43 arranged in sequence, and the third slanting bar 43 is located between the second slanting bar 42 and the...
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