Wedge plate type supporting structure of upper guide bearing bush

Abstract

The utility model provides a wedge plate type supporting structure of an upper guide bearing bush, which comprises a wedge plate and a fixing mechanism of the wedge plate, one side of the wedge plate is attached to the side wall of the upper guide bearing bush, the upper end of the wedge plate is connected with the upper guide bearing bush through a locking plate, and the fixing mechanism is arranged on the wall of an oil groove. The fixing mechanism is tightly attached to the contact end of the wedge plate. According to the utility model, the structure is simple, the supporting structure of the wedge plate is optimized, the locking plate of the wedge plate is fixed on the upper guide bearing bush, the height of the wedge plate can be measured on two sides, and the maintenance, the disassembly and the assembly are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbine generators, in particular to a wedge plate type supporting structure of an upper guide bearing bush. Background Art

[0002] The original upper guide bearing adopts the anti-weight bolt limiting method, and the upper guide bearing clearance directly affects the safe and stable operation of the unit. The upper guide bearing has a support seat, chrome steel pad, groove insulation, etc. on the back. When the unit is running for a long time, the anti-weight bolts may loosen or the groove insulation and support seat may deform, which may cause the upper guide bearing clearance to increase and the upper guide bearing swing to increase. Therefore, the anti-weight bolt limiting method is gradually transformed into a wedge plate limiting method. Referring to the unit water guide bearing bearing limiting method, the upper guide bearing support type is modified. After the modification, the overall operation of the upper guide bearing is good, but there are problems such as inconvenient bearing removal during maintenance and inspection, no fixed and reliable measuring point when adjusting the bearing bearing clearance to measure the lifting amount of the wedge plate, the oil tank cover installation height is increased, and the upper guide swing sensor is inconvenient to align.

[0003] Therefore, there is an urgent need to propose a wedge plate support structure for an upper guide bearing bushing to solve the above problems. Summary of the invention

[0004] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a wedge plate type support structure of an upper guide bearing bushing to solve the problems raised in the background technology.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solution: a wedge plate type support structure of an upper guide bearing shell, comprising a wedge plate and a fixing mechanism thereof, wherein one side of the wedge plate is fitted on the side wall of the upper guide bearing shell, the upper end of the wedge plate is connected to the upper guide bearing shell by a locking plate, the fixing mechanism is arranged on the oil groove wall, and the fixing mechanism is tightly fitted on the contact end of the wedge plate.

[0006] Preferably, a screw rod is fixedly provided on the upper end of the wedge plate, and the screw rod is connected to the locking plate through a lifting nut.

[0007] Preferably, one end of the support screw in the fixing mechanism is fastened to the oil groove wall through a nut, and the other end of the support screw is provided with a spherical support.

[0008] Preferably, a buffer gasket is provided at the contact end between the support screw and the spherical support post.

[0009] Preferably, the contact surface between the spherical support and the wedge plate is a spherical surface.

[0010] The utility model has the following beneficial effects:

[0011] 1. The wedge plate type upper guide bearing support structure is optimized to facilitate maintenance without affecting the safety and reliability of the upper guide bearing;

[0012] 2. No other accessories are needed to keep the oil tank cover installed at an inconvenient height, ensuring that the sensor can accurately measure the swing of the rotating part. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] See also Figure 1 A wedge plate type support structure for an upper guide bearing pad includes a wedge plate 1 and a fixing mechanism 2. One side of the wedge plate 1 is attached to the side wall of the upper guide bearing pad 3. The upper end of the wedge plate 1 is connected to the upper guide bearing pad 3 via a locking plate 5. The fixing mechanism 2 is arranged on the oil groove wall 4. The fixing mechanism 2 is tightly attached to the contact end of the wedge plate 1. This design optimizes the support structure of the wedge plate 1, fixes the locking plate 5 of the wedge plate 1 to the upper guide bearing pad 3, and the height of the wedge plate 1 can be measured on both sides, which is convenient for maintenance and disassembly.

[0016] Preferably, a screw rod 1.1 is fixedly arranged on the upper end of the wedge plate 1, and the screw rod 1.1 is connected to the lock plate 5 through a lifting nut 1.2. This design facilitates timely adjustment of the height position of the wedge plate.

[0017] Preferably, one end of the support screw 2.1 in the fixing mechanism 2 is fastened to the oil tank wall by a nut, and the other end of the support screw 2.1 is provided with a spherical support 2.2. This design can timely adjust the support strength of the wedge plate.

[0018] Preferably, a buffer pad 2.3 is provided at the contact end between the support screw 2.1 and the spherical support post 2.2. This design can reduce the wear of the contact end.

[0019] Preferably, the contact surface between the spherical support 2.2 and the wedge plate 1 is a spherical surface. This design increases the contact area between the wedge plate and the fixing mechanism and improves the support strength.

[0020] The working principle of this embodiment is as follows:

[0021] When adjusting the clearance of the upper guide bearing bushing, after determining the center position of the rotating part, tap the screw 1.1 to make the upper guide bearing bushing 3, wedge plate 1, spherical support 2.2 and support screw 2.1 fit tightly together. Taking the locking plate 5 as a reference, measure the height of the wedge plate 1. Calculate the height of the wedge plate 1 that needs to be lifted according to the maintenance standard requirements for the inspection of the upper guide bearing bushing 3 and the slope of the wedge plate 1. Tighten the lifting nut 1.2, lift the wedge plate 1 to the calculated height, and lock the lifting nut 1.2.

[0022] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A wedge plate type support structure for an upper guide bearing pad, comprising a wedge plate (1) and a fixing mechanism (2) thereof, characterized in that: One side of the wedge plate (1) is fitted to the side wall of the upper guide bearing bush (3), the upper end of the wedge plate (1) is connected to the upper guide bearing bush (3) via a locking plate (5), the fixing mechanism (2) is arranged on the oil groove wall (4), and the fixing mechanism (2) is tightly fitted to the contact end of the wedge plate (1).

2. A wedge plate type support structure for an upper guide bearing pad according to claim 1, characterized in that: A screw rod (1.1) is fixedly provided on the upper end of the wedge plate (1), and the screw rod (1.1) is connected to the locking plate (5) via a lifting nut (1.2).

3. The wedge plate type support structure of the upper guide bearing pad according to claim 1, characterized in that: One end of the support screw (2.1) in the fixing mechanism (2) is fastened to the oil groove wall via a nut, and the other end of the support screw (2.1) is provided with a spherical support pillar (2.2).

4. A wedge plate type support structure for an upper guide bearing pad according to claim 3, characterized in that: A buffer gasket (2.3) is provided at the contact end between the support screw (2.1) and the spherical support pillar (2.2).

5. The wedge plate type support structure of the upper guide bearing pad according to claim 3, characterized in that: The contact surface between the spherical support (2.2) and the wedge plate (1) is a spherical surface.

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