Vertical hydro-generator simulation installation adjusting device

Abstract

A vertical hydro-generator simulation installation adjusting device comprises a rack, an upper guide shaft and a thrust shaft are arranged in the rack, the upper guide shaft and the thrust shaft are connected with each other, the outer side of the upper guide shaft is sleeved with an upper guide bearing, the upper guide bearing is provided with an upper guide bearing bush, the bottom end of the upper guide bearing bush is provided with an upper guide tray, the upper side of the upper guide tray is provided with an upper guide bearing radial wedge seat, and the upper guide bearing radial wedge seat is provided with a lower guide bearing radial wedge seat. A thrust pad is arranged below the thrust shaft, a supporting column bolt is arranged on the lower side of the thrust pad, a lower guide bearing pad is arranged on the outer side of the thrust shaft, a wedge plate type gap adjusting device is arranged on the side wall of the lower guide bearing pad, a lower guide pad tray and a lower guide pad support are arranged on the lower side of the gap adjusting device, and an upper guide supporting plate is connected with the lower guide support through a rib plate. And a thrust bearing seat is arranged on the lower side of the lower guide shoe tray. The device is simple in structure, convenient to operate and suitable for popularization and use in training teaching, and turning can be carried out through single-person operation.

Description

Technical Field

[0001] The utility model belongs to the field of vertical hydro-generator simulation installation and adjustment devices, in particular to a vertical hydro-generator simulation installation and adjustment device. Background Art

[0002] Axis analysis and adjustment, as well as guide shoe clearance adjustment, are core components of turbine installation and maintenance, a crucial indicator of maintenance quality and a key factor in ensuring safe and stable turbine operation. Therefore, mastering these skills is crucial for hydropower personnel. To enhance the professional skills of hydropower maintenance personnel, a device with appropriate dimensions, simple structure, easy operation, and high machining precision is required for professional teaching and training.

[0003] Based on this, a vertical hydro-generator simulation installation and adjustment device was designed and manufactured, which can simulate the measurement and adjustment of the level, axis, center and guide shoe gap of the vertical hydro-generator set. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a simulated installation and adjustment device for a vertical hydro-turbine generator that simulates the actual conditions of a real machine to the greatest extent possible, and is used for routine training and instruction of maintenance personnel. The device is a composite device that measures and adjusts swing, center, and level, among other functions. Furthermore, the device is simple to install and adjust, and convenient for personnel to operate.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A simulated installation and adjustment device for a vertical hydro-turbine generator includes a frame, and is characterized in that: an upper guide shaft and a thrust shaft are provided inside the frame, the upper guide shaft and the thrust shaft are connected to each other, an upper guide bearing is sleeved on the outside of the upper guide shaft, the upper guide bearing is provided with an upper guide bushing, and an upper guide tray is provided at the bottom end of the upper guide bushing, an upper guide bushing radial wedge seat is provided on the upper side of the upper guide tray, a thrust bushing is provided below the thrust shaft, a support bolt is provided on the lower side of the thrust bushing, a lower guide bearing bushing is provided on the outside of the thrust shaft, a wedge plate type gap adjustment device is provided on the side wall of the lower guide bearing bushing, a lower guide bushing tray and a lower guide bushing support are provided on the lower side of the gap adjustment device, the upper guide support plate and the lower guide support are connected through ribs, and a thrust bearing seat is provided on the lower side of the lower guide bushing tray.

[0007] Preferably, the axis centers of the upper guide shaft, the thrust shaft, and the guide bearing are located on the same straight line.

[0008] Preferably, there are four thrust pads, and the thrust pads are symmetrically distributed.

[0009] Preferably, there are four upper guide bearings, and the upper guide bearings are symmetrically distributed.

[0010] Preferably, there are four lower guide bearings, and the lower guide bearings are symmetrically distributed.

[0011] Preferably, the wedge plate thickness is greater than the shoe gap of the thrust shoe.

[0012] Preferably, the thrust shaft is a cylindrical structure, and the thrust shaft is a combination of a thrust head and a mirror plate, and the bottom surface roughness Ra is 0.3 μm.

[0013] The utility model can achieve the following beneficial effects:

[0014] (1) The beneficial effect of the present invention is that the present invention can simulate a real machine to perform turning, and perform axis, center, level adjustment and guide shoe clearance adjustment operations, and the structure is stable and the measurement data is highly accurate, which is suitable for practical operation and teaching.

[0015] (2) The upper and lower parts of the overall structure of the utility model can be disassembled, which is convenient for installation, adjustment, inspection and maintenance of the device. The diameter of the device is 1mm, and the operating height of the upper guide bearing is 1.3m. It is exquisite and compact, and can be operated by one person. There is a large operating space for personnel, which has good economic and social benefits and is suitable for teaching and promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a structural diagram of the utility model.

[0018] In the figure: 1-upper guide shaft; 2-upper guide shoe adjustment device; 3-upper guide shoe adjustment base; 4-upper guide support plate; 5-upper guide support vertical rib plate 1; 6-upper guide support vertical rib plate 2; 7-lower guide shoe adjustment base; 8-lower guide support upper flange; 9-lower guide support lower flange; 10-lower guide shoe tray; 11-thrust bearing seat; 12-thrust bearing support plate; 13-support base; 14-heavy-duty adjustment foot cup; 15-upper guide shaft connecting bolt; 16-upper guide shoe; 17-upper guide shoe radial wedge seat; 18-upper guide tray; 19-radial adjustment seat; 20-lower guide shoe; 21-lower guide shoe wedge plate; 22-lower guide shoe tray; 23-thrust shoe; 24-thrust bearing support bolt. DETAILED DESCRIPTION

[0019] The preferred solution is Figure 1As shown, a simulated installation and adjustment device for a vertical hydro-turbine generator includes a frame, characterized in that an upper guide shaft 1 is provided inside the frame, a bolt fastener 15 is passed between the upper guide shaft 1 and the thrust shaft, an upper guide support plate 4 is provided on the outside of the upper guide bearing, and the upper guide bearing is provided with an upper guide bearing shell 16, and an upper guide shell adjustment device 2 and an upper guide shell adjustment base 3 are provided on the outside of the upper guide shell, and an upper guide tray 18 is provided at the bottom end of the upper guide bearing shell, and an upper guide shell radial wedge seat 17 is provided on the upper side of the upper guide tray, a thrust shell 23 is provided below the thrust shaft, a support bolt 24 is provided on the lower side of the thrust shell, a lower guide bearing shell 20 is provided on the outer side of the thrust shaft, a wedge plate type gap adjustment device 21 is provided on the side wall of the lower guide bearing shell, and a lower guide shell tray 22 and lower guide shell supports 8 and 9 are provided on the lower side of the gap adjustment device, the upper guide support plates 5 and 6 are welded to the lower guide supports 8 and 9 through ribs, and a thrust bearing seat 11 is provided on the lower side of the lower guide shell tray.

[0020] As a preferred embodiment 1, the radial adjustment seat 19 can facilitate the installation and adjustment of the upper guide shaft clearance.

[0021] As a preferred embodiment 2, the heavy-duty adjusting foot cup 14 facilitates the installation and removal of the support base 13 and the adjustment device level.

[0022] As a preferred embodiment 3, the upper guide shoe gap adjustment device 2 forms a fixed fit with the upper guide bearing shoe 16 , the upper guide shoe adjustment base 3 , and the upper guide tray 18 .

[0023] As a preferred embodiment 4, the lower guide shoe 20 is fixedly matched with the lower guide shoe wedge plate 21, the lower guide shoe tray, and the lower guide shoe adjustment base 7. When in use, the gap between the wedge plate 21 and the lower guide shoe 20 is changed by adjusting the screw to form an axis adjustment.

[0024] The above structural details demonstrate that this composite device demonstrates exceptional integration and adjustment flexibility in both structural design and functionality, making it ideally suited for both training and practical mechanical adjustments. When in use, the unit axis adjustment device has an overall height of approximately 1610 mm and a maximum outer diameter of approximately 1000 mm. The installation, connection, and adjustment methods of each component are modeled after those of a real vertical Francis turbine generator set. The upper motor shaft and intermediate thrust shaft are welded from stainless steel and precision-machined to meet precision requirements for coaxiality, flange parallelism, and perpendicularity. The mating areas for the bearings are ground to ensure the required roughness. Both the upper and lower guide bearings are designed as wedge plates, and the clearance between the segmented bearings is adjusted via an adjusting screw. The bearings are made of forged steel and cast in Babbitt alloy. The thrust bearing supports utilize a strut-bolt structure to support the weight of the model thrust head mirror plate and main shaft. The thrust bearing consists of four plastic thrust bearings.

[0025] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. Equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A vertical hydro-generator simulated installation and adjustment device, comprising a frame, characterized in that: An upper guide shaft and a thrust shaft are provided inside the frame, and the upper guide shaft and the thrust shaft are connected to each other. An upper guide bearing is provided on the outside of the upper guide shaft, and the upper guide bearing is provided with an upper guide bushing, and an upper guide tray is provided at the bottom end of the upper guide bushing, and an upper guide bushing radial wedge seat is provided on the upper side of the upper guide tray, a thrust bushing is provided under the thrust shaft, and a support bolt is provided on the lower side of the thrust bushing, a lower guide bearing bushing is provided on the outside of the thrust shaft, and a wedge plate type gap adjustment device is provided on the side wall of the lower guide bearing bushing, a lower guide bushing tray and a lower guide bushing support are provided on the lower side of the gap adjustment device, the upper guide support plate and the lower guide support are connected through ribs, and a thrust bearing seat is provided on the lower side of the lower guide bushing tray.

2. A vertical hydro-generator simulated installation and adjustment device according to claim 1, characterized in that: The axis lines of the upper guide shaft, thrust shaft and guide bearing are located on the same straight line.

3. The vertical hydro-generator simulated installation and adjustment device according to claim 1, characterized in that: There are four thrust pads, and the thrust pads are symmetrically distributed.

4. The vertical hydro-generator simulated installation and adjustment device according to claim 1, characterized in that: There are four upper guide bearings, and they are symmetrically distributed.

5. The vertical hydro-generator simulated installation and adjustment device according to claim 1, characterized in that: There are four lower guide bearings, and they are symmetrically distributed.

6. The vertical hydro-generator simulated installation and adjustment device according to claim 1, characterized in that: The thickness of the wedge plate is greater than the pad gap of the thrust pad.

7. The vertical hydro-generator simulated installation and adjustment device according to claim 1, characterized in that: The thrust shaft is a cylindrical structure, and the thrust shaft is a combination of a thrust head and a mirror plate, and the bottom surface roughness is Ra0.3μm.

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