On-line monitoring device for thrust bearing load of vertical water-turbine generator set

Abstract

A thrust bearing load on-line monitoring device of a vertical water-turbine generator set comprises a thrust bearing system, the thrust bearing system is characterized in that a thrust bearing seat is arranged on a load-bearing rack, a supporting tile is arranged on the thrust bearing seat, a thrust tile is arranged on the supporting tile, a runner plate is arranged on the thrust tile, a thrust head is arranged on the runner plate, and the thrust head is arranged on the thrust bearing seat. The device is characterized in that an anti-weight mechanism is arranged between the thrust bearing seat and the supporting tile, a pressure sensor is arranged between the anti-weight mechanism and the thrust bearing seat, and the pressure sensor is connected with a display. According to the utility model, under the condition that the overall layout and the structural safety of the thrust bearing of the unit are not changed, the real-time monitoring of the load of the thrust bearing and the thrust pad of the thrust bearing of the small and medium-sized vertical water-turbine generator set is realized, and the quality and the efficiency of installation and maintenance of the unit are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water conservancy and hydropower, and specifically relates to an online monitoring device for thrust bearing load of a vertical water turbine generator set. Background Art

[0002] During the installation and commissioning of small and medium-sized vertical hydro-turbine generator sets based on thrust bearings, a dial indicator is usually used to measure the deformation of the support bearing to determine the force condition of the thrust bearing. This method is not intuitive, the measured thrust bearing has a large acceptance error, and the thrust bearing force cannot be monitored in real time during daily operation of the unit. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide an online monitoring device for the thrust bearing load of a vertical hydro-turbine generator set with accurate measurement.

[0004] The technical solution adopted to solve the above technical problems is: an online monitoring device for the thrust bearing load of a vertical hydro-turbine generator set, including a thrust bearing system, wherein the thrust bearing system is provided with a thrust bearing seat on a load-bearing frame, a supporting shoe is provided on the thrust bearing seat, a thrust shoe is provided on the supporting shoe, a mirror plate is provided on the thrust shoe, a thrust head is provided on the mirror plate, an anti-weight mechanism is provided between the thrust bearing seat and the supporting shoe, a pressure sensor is provided between the anti-weight mechanism and the thrust bearing seat, and the pressure sensor is connected to a display.

[0005] As a preferred technical solution, the anti-weight mechanism includes an anti-weight nut and an anti-weight bolt. A nut mounting groove is processed in the middle part of the thrust bearing seat. The anti-weight nut is arranged in the nut mounting groove. The anti-weight bolt is threadedly connected with the anti-weight nut, and the top of the anti-weight bolt rests against the bottom of the support bearing.

[0006] As a preferred technical solution, an anti-weight nut locating pin is axially arranged on the upper end surface of the thrust bearing seat and at the connection with the anti-weight nut.

[0007] As a preferred technical solution, an anti-weight bolt positioning plate is provided on the upper end surface of the thrust bearing seat.

[0008] The beneficial effects of the utility model are as follows:

[0009] The utility model has an anti-weight mechanism between the thrust bearing seat and the support shoe, a pressure sensor is arranged between the anti-weight mechanism and the thrust bearing seat, the pressure sensor is connected to a display, and pressure data is displayed in real time through the display. The utility model realizes real-time monitoring of the thrust shoe load of the thrust bearing of small and medium-sized vertical hydro-turbine generator sets without changing the overall layout and structural safety of the thrust bearing of the set, thereby improving the quality and efficiency of the installation and maintenance of the set. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Among them: load-bearing frame 1, thrust bearing seat 2, wire 3, anti-weight nut 4, anti-weight bolt positioning plate 5, support bearing 6, thrust bearing 7, mirror plate 8, thrust head 9, anti-weight nut positioning pin 10, anti-weight bolt 11, pressure sensor 12, display 13. DETAILED DESCRIPTION

[0012] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to the following embodiments.

[0013] exist Figure 1 In the embodiment, the thrust bearing load online monitoring device of the vertical turbine generator set includes a thrust bearing system, wherein the thrust bearing system is a thrust bearing seat 2 installed on a load-bearing frame 1, a support shoe 6 installed on the thrust bearing seat, a thrust shoe 7 installed on the support shoe 6, a mirror plate 8 installed on the thrust shoe 7, a thrust head 9 installed on the mirror plate 8, an anti-weight mechanism installed between the thrust bearing seat 2 and the support shoe 6, the anti-weight mechanism including an anti-weight nut 4 and an anti-weight bolt 11, a nut installation groove is processed in the middle of the thrust bearing seat, a pressure sensor 12 is installed at the bottom of the nut installation groove, the anti-weight nut 4 is installed in the nut installation groove and pressed against the pressure sensor 12, the anti-weight bolt 11 is threadedly connected to the anti-weight nut 4, and the top of the anti-weight bolt 11 is against the bottom of the support shoe 6. An anti-weight nut locating pin 10 is axially installed on the upper end surface of the thrust bearing seat and at the connection with the anti-weight nut 4, which is used for axial positioning and fixing of the anti-weight nut 4. An anti-weight bolt positioning plate 5 is installed on the upper end surface of the thrust bearing seat to prevent the anti-weight bolt 11 from radial deviation.

[0014] The pressure sensor 12 is connected to the display 13 through the wire 3. The pressure sensor 12 is a plate-type pressure sensor sold on the market by Bengbu Chengying Sensor Co., Ltd., with model number HZC-01. The display 13 is a high-precision intelligent display controller sold on the market by Bengbu Chengying Sensor Co., Ltd., with model number CY-GJD. The pressure signal collected in real time by the pressure sensor 12 is displayed through the display 13, which can accurately display the load condition of the thrust washer 7. In the process of adjusting the vertical hydro-turbine generator set, the force value of the thrust washer 7 can be easily adjusted to a very small deviation, which greatly improves the work efficiency.

Claims

1. An online monitoring device for thrust bearing load of a vertical turbine generator set, comprising a thrust bearing system, wherein a thrust bearing seat is arranged on a load-bearing frame, a support shoe is arranged on the thrust bearing seat, a thrust shoe is arranged on the support shoe, a mirror plate is arranged on the thrust shoe, and a thrust head is arranged on the mirror plate, characterized in that: An anti-weight mechanism is arranged between the thrust bearing seat and the support shoe, a pressure sensor is arranged between the anti-weight mechanism and the thrust bearing seat, and the pressure sensor is connected to the display.

2. According to claim 1, the online monitoring device for thrust bearing load of a vertical hydro-turbine generator set is characterized in that: The anti-weight mechanism includes an anti-weight nut and an anti-weight bolt. A nut mounting groove is processed in the middle of the thrust bearing seat. The anti-weight nut is arranged in the nut mounting groove. The anti-weight bolt is threadedly connected with the anti-weight nut, and the top of the anti-weight bolt rests on the bottom of the support bearing.

3. The online monitoring device for thrust bearing load of a vertical hydro-turbine generator set according to claim 2 is characterized in that: An anti-weight nut locating pin is axially arranged on the upper end surface of the thrust bearing seat and at the connection point with the anti-weight nut.

4. The online monitoring device for thrust bearing load of a vertical hydro-turbine generator set according to claim 2 is characterized in that: An anti-weight bolt positioning plate is arranged on the upper end surface of the thrust bearing seat.

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