CN201138282Y

CN201138282Y - Novel detection device for loading of two-way cylinder

Info

Publication number: CN201138282Y
Application number: CNU2007201319363U
Authority: CN
Inventors: 周焕民
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-26
Filing date: 2007-12-26
Publication date: 2008-10-22
Anticipated expiration: 2017-12-26

Abstract

The utility model discloses a new double-action detector of cylinder loading, comprising a double-action cylinder and a hydraulic circuit. The detector has two double-action cylinders, one of which is the loading cylinder (8) and the other of which is a cylinder under test (9). The both ends of the loading cylinder (8) and the cylinder under test (9) are connected with the hydraulic circuit respectively. The swinging arm (10) with offset A is arranged on a fixed support (11) by a hinge. The cylinder body of the loading cylinder (8) is arranged on the fixed support (12) by the hinge. A cylinder rod is arranged on one end of the swinging arm (10) by the hinge. The cylinder body of the cylinder under test (9) is arranged on the other end of the swinging arm (10) by the hinge. The cylinder rod is arranged on the fixed support (13) by the hinge. With the structure adopted, the manufacturing cost of the new double-action detector of cylinder loading is reduced. In addition, the loading detection technology of the double-action cylinder becomes easier and work efficiency is improved.

Description

Novel two-way cylinder loads pick-up unit

Technical field

The utility model relates to a kind of pick-up unit, especially relates to a kind of novel two-way cylinder and loads pick-up unit.

Background technology

At present, loading to two-way cylinder in the industry detects the standard GB/T15622-1995 hydraulic cylinder test methods (" engineering machinery important spare part standard compilation " edited and publish at national project mechanical quality supervision and inspection center) that adopt more, this standard discloses the loading pick-up unit of two-way cylinder, but this loading pick-up unit is owing to adopted two hydraulic circuits, complex structure, and manufacturing cost height.

Summary of the invention

The technical problems to be solved in the utility model provides the technology that a kind of simple and effective novel two-way cylinder loads pick-up unit.

Technical problem to be solved in the utility model is achieved by the following technical solution: it comprises two-way cylinder, hydraulic circuit, this device has two two-way cylinders, one is load cylinder, another is tested oil cylinder, the two ends of load cylinder and tested oil cylinder are connected fluid pressure line respectively, and swing arm is installed on the fixed support by hinge, swing arm off-centre, the cylinder body of load cylinder is installed on the fixed support by hinge, and piston rod is installed in swing arm one end by hinge; The cylinder body of tested oil cylinder is installed in the swing arm other end by hinge, and piston rod is installed on the fixed support by hinge.

Hydraulic circuit described in the utility model is made up of oil filter, hydraulic pump, surplus valve, retaining valve, solenoid directional control valve and pipeline, and two output terminals of solenoid directional control valve are connected to load cylinder and tested oil cylinder by two pipelines respectively.

The utility model is equipped with tensimeter on the pipeline that connects solenoid directional control valve and two-way cylinder.

The said structure that the utility model adopts has reduced the manufacturing cost that two-way cylinder loads pick-up unit, and it is more easy to make that two-way cylinder loads detection technique, and has improved work efficiency.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further:

Accompanying drawing is depicted as the structure principle chart that the utility model two-way cylinder loads pick-up unit

Embodiment

By accompanying drawing as can be known, this device has two two-way cylinders, one is load cylinder 8, another is tested oil cylinder 9, the two ends of load cylinder 8 and tested oil cylinder 9 are connected fluid pressure line respectively, and swing arm 10 is installed on the fixed support 11 by hinge, the eccentric A of swing arm, the cylinder body of load cylinder 8 is installed on the fixed support 12 by hinge, and piston rod is installed in swing arm 10 1 ends by hinge; The cylinder body of tested oil cylinder 9 is installed in swing arm 10 other ends by hinge, and piston rod is installed on the fixed support 13 by hinge.When solenoid valve is in right-hand member, imported the hydraulic oil of uniform pressure at rodless cavity one end of load cylinder 8 and tested oil cylinder 9, the acting force that two oil cylinders act on swing arm 10 two ends is identical, because the eccentric A of swing arm, make the arm of force of measured oil cylinder end greater than the arm of force of load cylinder end, thereby the moment of measured oil cylinder end is greater than the moment of load cylinder end, and swing arm 10 clockwise rotates, and the piston rod of the cylinder body of tested oil cylinder 9 and load cylinder 8 is done rightabout motion; When the solenoid valve commutation is in left end, imported the hydraulic oil of uniform pressure at rod chamber one end of load cylinder 8 and tested oil cylinder 9, because swing arm 10 eccentric A, the moment of measured oil cylinder end is greater than the moment of load cylinder end, swing arm 10 rotates counterclockwise, and the piston rod of the cylinder body of tested oil cylinder 9 and load cylinder 8 is done rightabout motion.By the commutation of control electromagnetic valve, make the cylinder body of tested oil cylinder 9 do the to-and-fro movement go round and begin again, realize the loading of two-way cylinder is detected.The hydraulic circuit that the utility model adopted can be made up of oil filter 1, hydraulic pump 2, surplus valve 3, retaining valve 4, solenoid directional control valve 5 and pipeline, and two output terminals of solenoid directional control valve 5 are connected to load cylinder 8 and tested oil cylinder 9 by two pipelines respectively.In addition, the utility model can be equipped with

tensimeter

6,7 connecting on the pipeline of solenoid directional control valve 5 and two-way cylinder, and the numerical value change from the tensimeter can reflect the test parameters of two-way cylinder.

Claims

1, a kind of novel two-way cylinder loads pick-up unit, comprise two-way cylinder, hydraulic circuit, it is characterized in that this device has two two-way cylinders, one is load cylinder, and another is tested oil cylinder, and the two ends of load cylinder and tested oil cylinder are connected fluid pressure line respectively, swing arm is installed on the fixed support by hinge, swing arm off-centre, the cylinder body of load cylinder is installed on the fixed support by hinge, and piston rod is installed in swing arm one end by hinge; The cylinder body of tested oil cylinder is installed in the swing arm other end by hinge, and piston rod is installed on the fixed support by hinge.

2, a kind of novel two-way cylinder according to claim 1 loads pick-up unit, it is characterized in that described hydraulic circuit is made up of oil filter, hydraulic pump, surplus valve, retaining valve, solenoid directional control valve and pipeline, two output terminals of solenoid directional control valve are connected to load cylinder and tested oil cylinder by two pipelines respectively.

3, a kind of novel two-way cylinder according to claim 2 loads pick-up unit, it is characterized in that on the pipeline that connects solenoid directional control valve and two-way cylinder tensimeter being installed.