Large-air gap mixed magnetic bearing performance testing device

1. A large air gap apparatus for testing performance of hybrid magnetic suspension bearing, which is characterized in that in turn is connected to the driving system of the mechanical way, gap hybrid magnetic suspension bearing system, measuring system, the loading system, wherein: the drive system comprises an electric motor (1), coupling (2), hybrid magnetic suspension bearing system includes large air gap gap hybrid magnetic suspension bearing (3), a base (4), measuring system includes a rotary main shaft (5), the displacement sensor (6), the loading system includes a dynamic balancing disc (7), the weight loading device (8); self-left to right, the motor (1), the base (4) and a loading support (16) in turn is fixed on the base platform by a bolt (9) is.

2. Gap hybrid magnetic suspension bearing performance testing device according to Claim 1, characterized in that the mixed magnetic levitation bearing system of the large air gap gap hybrid magnetic suspension bearing the front end cover (11), a hybrid magnetic suspension bearing of the large air gap (12), a rear end cover hybrid magnetic suspension bearing of the large air gap (13) and located in this 3 surrounding the upper part of the space of the large air gap in the hybrid magnetic suspension bearing (3) form.

3. Gap hybrid magnetic suspension bearing performance testing device according to Claim 2, characterized in that said gap hybrid magnetic suspension bearing (3) is composed of a stator lamination assembly and rotor lamination assembly, wherein the stator iron-on four magnetic poles as electromagnetic poles around the coil, the iron of the stator of the permanent magnet is a position corresponding to the permanent magnet magnetic pole, and the electromagnetic magnetic pole angle is 45 °, and then the permanent magnet pole the boots stick in the end part of the permanent magnet, the magnetic sheet is adhered on the stator iron and the permanent magnet, and the hexagonal bolt in the stator of the permanent-magnet pole piece is fixedly connected with the magnetic insulation.

4. Gap hybrid magnetic suspension bearing performance testing device according to Claim 1, characterized in that the rotating spindle (5) at two ends of the mixed large air gap the magnetic suspension bearing (3) to realize under the support of suspended, by a sensor measuring the rotating spindle (5) radial displacement, the weight loading device (8) to the rotary main shaft (5) for loading, changing various parameters of the loading system, so as to measure the gap hybrid magnetic suspension bearing system as a whole, including rigidity, load, various performance support the characteristic; or, the rotating spindle (5) the one end of the mechanical bearing (10) supporting, the other end of the magnetic suspension bearing of the mixed large air gap (3) supporting, test single-gap hybrid magnetic suspension bearing, including rigidity, load, various performance support the characteristic.

5. Gap hybrid magnetic suspension bearing performance testing device according to Claim 1, characterized in that the rotating spindle (5), one end of the coupling (2) is connected, the other end thereof is used for mounting the loading bearing (14); displacement sensor (6) and through a sensor support gap hybrid magnetic suspension bearing (3) of the rear end cover (13) is connected.

6. Gap hybrid magnetic suspension bearing performance testing device according to Claim 5, characterized in that the rotating spindle (5) consists of a magnetic conductive material, the measuring section directly used as the displacement sensor (6) of the measuring shaft.

7. Gap hybrid magnetic suspension bearing performance testing device according to Claim 1, characterized in that the dynamic balance of the disk (7), on one end of the rotating spindle (5) of the positioning of the shaft, at the same time the role of protecting the bearing location; on the other end of the rotating spindle (5) tighten the nut on the fixing; weight loading device is installed at the tail end (8); a plurality of threaded holes are evenly distributed along the circumferential direction, which is used to install the screw as a loading mass block, complete dynamic balance test.

8. Gap hybrid magnetic suspension bearing performance testing device according to Claim 7, characterized in that the weight loading device (8) by a loading bearing (14), bed (15) and a loading support (16); ; said bed (15) of the fulcrum and the loading bracket (16) is connected, the pivot of the weight to the bearing support, and the hanging hole is at the distance of 1:10, its front end with the loading bearing (14) is connected, in a hanging for the rear end of the loading weight or through the exciter to the rotating spindle (5) load canada changes.

9. Gap hybrid magnetic suspension bearing performance testing device according to Claim 1, characterized in that the drive system, the mixed large air gap and the magnetic levitation bearing system is mounted in the measuring system to, rely on the mixed magnetic suspension bearing with the large air gap the outer diameter of the stator inner diameter to the larger installation such as debugging, in the base (4) fixed on a hybrid magnetic suspension bearing of the large air gap of the position of the mounting stick out after, the large air gap and the inner diameter of the bearing stator mixed magnetic suspension bracket is provided with the bearing air gap, so as to avoid mounting and rotating the main shaft and the large air gap of the bearing rotor of the mixed magnetic suspension, gap hybrid magnetic suspension bearing stator damage.

10. Claim 1 to 9 in a large air gap the hybrid magnetic suspension bearing performance test the use of the device, which is characterized in that the device is used for wind-driven generator, or the magnetic levitation artware artificial borrow mixed in the performance test of the magnetic suspension bearing.