Displacement indicating controller of hydraulic cylinder
A technology of a control device and a hydraulic cylinder, applied in the field of hydraulic cylinders, can solve the problems of wear and failure of the indicating control device, and achieve the effects of simple structure, avoiding running wear and reducing wear and tear.
Inactive Publication Date: 2010-06-09
ZNPL OCEAN DETECTION SYST ENG
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Problems solved by technology
Since the source of wear has not been removed, the indicating control device will still wear out quickly
Method used
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[0011] The present invention adopts the following structures: scale 1, pointer 2, screw 3, spring washers 4, 7, backing ring 5, pressure ring 6, induction switch 8, magnetic ring 9, pull rod screw 10, drag bar 11, shell cover 12. Wherein, the drag rod 11 is fixedly connected with the piston rod of the hydraulic cylinder, and the casing 12 is fixedly connected with the cylinder body. The magnetic ring 9 is fixed on the backing ring 5, the backing ring 5, the pressure ring 6, and the spring washer 7 are screwed together on the drag bar 11 with the pull rod screw 10, and the backing ring 5 is moved and locked in the straight groove of the shell 12 at the same time; Ring 6 compresses spring washer 7 to prevent tie rod screw 10 from loosening, backing ring 5 and tie bar screw 10 have clearance in the radial direction and axial direction, after tie rod screw 10 is tightened, backing ring 5 can still rotate easily. The pointer 2 is pressed in the positioning groove of the backing rin...
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The invention relates to a displacement indicating controller of a hydraulic cylinder, which comprises a shell sleeve, wherein a towing handle is arranged in the shell sleeve and is fixedly connected with a piston rod of the hydraulic cylinder; a magnetic ring is fixed on a backing ring and is matched with an inductive switch arranged on the shell sleeve; the backing ring, a clamping ring and a spring washer are fixed on the towing handle through towing handle bolts; the backing ring is clamped in a straight slot of the shell sleeve; a pointer is pressed in a positioning groove of the backing ring through bolts; and a measuring scale is fastened on the surface of the shell sleeve. In the displacement indicating controller, the backing ring provided with the pointer and the magnetic ring is in movable fit connection with the towing handle, and the backing ring is in movable fit slip connection with the straight slot on the shell sleeve provided with the measuring scale and the inductive switch, so when the hydraulic cylinder is in operation, the backing ring slides along the straight slot on the shell sleeve provided with the measuring scale and the inductive switch, and simultaneously rotates relative to the towing handle so as to indicate and control the stroke position of the hydraulic cylinder. The displacement indicating controller has a simple structure, is simple and convenient to produce and manufacture, effectively avoids the running abrasions of the backing ring and the pointer, and improves the safety of the displacement indicating control.
Description
technical field [0001] The invention relates to a hydraulic cylinder displacement indication control device, which belongs to a mechanical indication control mode and is suitable for the technical field of hydraulic cylinders. Background technique [0002] At present, the mechanical displacement indicating control device of the hydraulic cylinder usually connects the pointer indicating the displacement with the piston rod, or adds a drag rod transition connection between the pointer and the piston rod. Due to the influence of processing methods, there is a helical shape error in the inner hole of the hydraulic cylinder and the outer circle of the piston rod, there is an offset between the inlet and outlet of the hydraulic cylinder and the axis of the cylinder, and the eddy current formed when the hydraulic cylinder starts and stops will cause As the piston rod moves, a certain amount of rotation occurs. [0003] Practice has proved that when the hydraulic cylinder is runnin...
Claims
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IPC IPC(8): F15B15/28
Inventor 杜浩斌向东刘建魁许家勤
Owner ZNPL OCEAN DETECTION SYST ENG