CN206002313U - A kind of shaft experiment device bearing torque device - Google Patents

Abstract

The utility model discloses a kind of shaft experiment device bearing torque device, belongs to aero-engine main shaft test field；Including：Carry column, multiple bearing torque pressurized struts, bearing torque plate, displacement transducer；Bearing torque plate is the circular steel plate for being provided with annular mounting groove, and multiple bearing torque pressurized struts cinctures are distributed on bearing torque plate one week；Bearing torque pressurized strut one end is hinged with carrying column, and the other end is hinged with bearing torque plate；Displacement transducer is in any one bearing torque pressurized strut, bearing torque pressurized strut constitutes closed-loop control system with displacement transducer, employ the carrying that moment of torsion is realized with the bearing torque pressurized strut of displacement closed-loop control, multiple bearing torque pressurized struts are controlled by displacement transducer using same displacement passage and feed back, the piston of multiple pressurized struts is all the time at the middle part of pressurized strut, ensure that uniform load steadily, can under long-time, big load state continuous and steady operation；While this apparatus structure is simple, highly versatile, easy for installation.

Description

A kind of shaft experiment device bearing torque device

Technical field

The utility model belongs to aero-engine main shaft experimental technique field, and in particular to a kind of shaft experiment device bearing torque dress Put.

Background technology

The test load of main shaft typically has four kinds：Axial force, moment of torsion, vibration moment of torsion and rotation moment of flexure.Axle examination in decades The bearing structure of moment of torsion in device is tested as main shaft exerciser is after the multiple replacement and improvement.Hydraulic pressure is carried to from rigid rod moment of torsion Formula moment of torsion is carried.But the subject matter for running into is all moment of torsion cannot realize stable carrying：In initial shaft experiment device, moment of torsion is used Rigid rod is carried, but is as a result rigid rod under the compound action of moment of torsion and vibration moment of torsion as rigid rod is apart from constant, small Displacement will result in huge load deflections, it is impossible to uniform carry, rigid rod also fatigue rupture quickly, test cannot continue into OK.Later using opened loop control hydraulic actuator carry by the way of also because pressurized strut secundly quickly, cause and rigidity The same result of connecting rod.It is thus desirable to a kind of reliable and stable shaft experiment device bearing torque structure of design, allows shaft experiment when long Between, continuous and steady operation under big load state.

Utility model content

The purpose of this utility model：For solving the above problems, a kind of shaft experiment device bearing torque device is provided, using displacement closed loop The ACTUATOR of control and it is controlled and feeds back using a displacement passage, overcoming existing exerciser, to carry out engine spindle tired The load problem of non-uniform of rigid rod or opened loop control hydraulic actuator bearing torque structure when labor is tested.

The technical solution of the utility model：A kind of shaft experiment device bearing torque device, including：Carry column, multiple bearing torque starts Cylinder, bearing torque plate, displacement transducer；

The bearing torque plate is the circular steel plate for being provided with annular mounting groove, and multiple bearing torque pressurized struts cinctures are distributed on bearing torque plate One week；Described bearing torque pressurized strut one end is hinged with carrying column, and the other end is hinged with bearing torque plate；Displacement transducer is installed in arbitrarily In one bearing torque pressurized strut, the bearing torque pressurized strut and institute's displacement sensors constitute closed-loop control system, by the displacement Sensor is passed to each described bearing torque pressurized strut work of displacement signal Synchronization Control of each bearing torque pressurized strut.

Preferably, described bearing torque pressurized strut one end is connected with column is carried by the first ball pivot, and the other end passes through second Ball pivot is connected with bearing torque plate.

Preferably, the piston of the bearing torque pressurized strut is always positioned at the middle part of bearing torque pressurized strut.

Preferably, the bearing torque pressurized strut installation direction is vertical with bearing torque torque.

The beneficial effects of the utility model：Employ the carrying that moment of torsion is realized with the bearing torque pressurized strut of displacement closed-loop control, Multiple bearing torque pressurized struts use same displacement passage, are controlled by displacement transducer and feed back, the work of multiple pressurized struts Plug is all the time at the middle part of pressurized strut, it is ensured that uniform load steadily, can be transported continuous-stable under long-time, big load state OK；While this apparatus structure is simple, highly versatile, easy for installation.

Description of the drawings

Fig. 1 is a kind of front view of the structure of a preferred embodiment of shaft experiment device bearing torque device of the utility model；

Fig. 2 is a kind of top view of the structure of a preferred embodiment of shaft experiment device bearing torque device of the utility model；

Wherein, 1- carries column, the first ball pivot of 2-, and 3- carries pressurized strut, and the second ball pivot of 4-, 5- bearing torque plate, 6- displacement are passed Sensor.

Specific embodiment

For making purpose, technical scheme and advantage that the utility model is implemented clearer, below in conjunction with the utility model Accompanying drawing in embodiment, is further described in more detail to the technical scheme in the utility model embodiment.In the accompanying drawings, ad initio Represent same or similar element or the element with same or like function to same or similar label eventually.Described reality It is a part of embodiment of the utility model to apply example, rather than whole embodiments.Embodiment below with reference to Description of Drawings It is exemplary, it is intended to for explaining the utility model, and it is not intended that to restriction of the present utility model.New based on this practicality Embodiment in type, the every other enforcement obtained under the premise of creative work is not made by those of ordinary skill in the art Example, belongs to the scope of the utility model protection.Below in conjunction with the accompanying drawings embodiment of the present utility model is described in detail.

Of the present utility model description in, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", "front", "rear", The orientation of instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward " or position relationship be based on accompanying drawing institute The orientation for showing or position relationship, are for only for ease of description the utility model and simplify description, rather than indicate or hint indication Device or element must be with specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality The restriction of novel protected scope.

Below in conjunction with the accompanying drawings embodiment of the present utility model is described in detail, refers to Fig. 1 to Fig. 2；

A kind of shaft experiment device bearing torque device, including：Carry column 1, multiple bearing torque pressurized struts 3, bearing torque plate 5, displacement sensing Device 6；

Bearing torque plate 5 is to be provided with the circular steel plate of annular mounting groove, and multiple bearing torque pressurized struts 3 are around being distributed on bearing torque plate 5 One week；3 one end of bearing torque pressurized strut is hinged with carrying column 1 compared with 2 by the first ball, and the other end is by the second ball pivot 4 and bearing torque plate 5 Hinged, and the installation direction of bearing torque pressurized strut 3 is vertical with bearing torque torque, it is ensured that bearing torque pressurized strut 3 by axial force without Other additional loads.

Displacement transducer 6 in any one bearing torque pressurized strut 3, the bearing torque pressurized strut 3 and 6 groups of displacement transducer Become closed-loop control system, multiple bearing torque pressurized struts 3 are using oil circuit control in parallel, it is ensured that 3 action one of multiple bearing torque pressurized struts Cause property；The displacement signal for being passed to any one bearing torque pressurized strut 3 by displacement transducer 6 can other bearing torques of Synchronization Control Pressurized strut 3 works, and multiple bearing torque pressurized struts 3 are controlled using same displacement passage and feed back, displacement close-loop control mode The piston of multiple pressurized struts 3 be ensure that all the time at the middle part of pressurized strut, torque load is born by hydraulic pressure all the time, it is ensured that load is equal Even steady, can stable operation under long-time, big load state.

A kind of shaft experiment device bearing torque device of the utility model, overcoming existing exerciser carries out engine spindle fatigue test When rigid rod or opened loop control hydraulic actuator bearing torque structure load problem of non-uniform.While this apparatus structure is simple, general Property is strong, easy for installation.

Last it is to be noted that：Above example is only in order to illustrating the technical solution of the utility model, rather than which is limited System.Although being described in detail to the utility model with reference to the foregoing embodiments, one of ordinary skill in the art should manage Solution：Which still can be modified to the technical scheme described in foregoing embodiments, or which part technical characteristic is entered Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from each embodiment of the utility model The spirit and scope of technical scheme.

Claims (4)

1. a kind of shaft experiment device bearing torque device, it is characterised in that include：Carry column (1), multiple bearing torque pressurized struts (3), bearing torque Plate (5), displacement transducer (6)；

Bearing torque plate (5) are the circular steel plate for being provided with annular mounting groove, and multiple bearing torque pressurized strut (3) cincture is distributed on bearing torque Plate (5) one weeks；Bearing torque pressurized strut (3) one end is hinged with carrying column (1), and the other end is hinged with bearing torque plate (5)；Displacement is passed In any one bearing torque pressurized strut (3), bearing torque pressurized strut (3) are constituted sensor (6) with institute's displacement sensors (6) Closed-loop control system, is passed to the displacement signal synchronization of each bearing torque pressurized strut (3) by institute's displacement sensors (6) Each described bearing torque pressurized strut (3) is controlled to work.

2. a kind of shaft experiment device bearing torque device according to claim 1, it is characterised in that：Described bearing torque pressurized strut (3) One end is connected with column is carried by the first ball pivot (2), and the other end is connected with bearing torque plate (5) by the second ball pivot (4).

3. a kind of shaft experiment device bearing torque device according to claim 1, it is characterised in that：Bearing torque pressurized strut (3) Piston is always positioned in the middle part of pressurized strut.

4. a kind of shaft experiment device bearing torque device according to claim 1, it is characterised in that：Bearing torque pressurized strut (3) Installation direction is vertical with bearing torque torque.