Adjusting device and hydraulic generator

Abstract

The utility model provides an adjusting device and a hydro-generator, the adjusting device is used for adjusting a gap between a guide bearing bush and a sliding rotor in the hydro-generator, and the adjusting device comprises a supporting mechanism which is configured to be arranged opposite to one surface, deviating from the sliding rotor, of the guide bearing bush and form a gap; the wedge plate is provided with a first plane and a second plane which are opposite to each other, an included angle is formed between the first plane and the second plane, the wedge plate comprises a first end and a second end which are opposite to each other, the thickness of the wedge plate is gradually increased from the first end to the second end, the first end is arranged in the gap, and the second end is arranged in the gap. The first plane is configured to abut against the face, away from the sliding rotor, of the guide bearing bush, and the second plane abuts against the supporting mechanism. And the driving mechanism is connected with the second end and is used for driving the wedge plate to move so as to adjust the gap. The adjusting device can adjust the gap between the guide bearing bush and the sliding rotor, and is convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbine generators, in particular to a regulating device and a water turbine generator. Background Art

[0002] The guide bearing of the hydro-turbine generator is an important component of the hydro-turbine generator bearing. It is composed of main components such as guide bearing bushing, support bolts, sleeve, seat ring, sliding rotor and oil cooler. It mainly bears the mechanical unbalance force of the rotor and the unilateral magnetic pull caused by the eccentricity of the rotor. Its main function is to prevent the shaft from swinging.

[0003] In the prior art, the gap between the guide bearing shell and the sliding rotor needs to be manually adjusted each time the guide bearing is installed. If the temperature of the guide bearing shell is too high or too low after operation, the gap cannot be adjusted during operation. The machine must be shut down and the guide bearing cover must be removed before manual adjustment. The adjustment is time-consuming and inconvenient. Utility Model Content

[0004] The embodiments of the utility model provide an adjusting device and a hydro-turbine generator, which can improve the technical problem of inconvenient clearance adjustment between the guide bearing bush and the sliding rotor of the existing hydro-turbine generator.

[0005] In a first aspect, an embodiment of the utility model provides an adjusting device for adjusting the gap between the inner guide bearing bush and the sliding rotor of a hydro-turbine generator, comprising:

[0006] A support mechanism is configured to be disposed opposite to a side of the guide bearing bush facing away from the sliding rotor and to form a gap;

[0007] A wedge plate having a first plane and a second plane opposite to each other, an angle being formed between the first plane and the second plane, the wedge plate comprising a first end and a second end opposite to each other, a thickness of the wedge plate gradually increasing from the first end to the second end, the first end being disposed in the gap, the first plane being configured to abut against a surface of the guide bearing bushing facing away from the sliding rotor, and the second plane abutting against the supporting mechanism;

[0008] A driving mechanism is connected to the second end and is used for driving the wedge plate to move so as to adjust the gap.

[0009] In an embodiment of the utility model, by arranging the end of the wedge plate with a smaller thickness between the guide bearing bushing and the support mechanism, and driving the wedge plate to move by a driving mechanism, the thickness of the wedge plate between the guide bearing bushing and the support mechanism changes, thereby making the guide bearing bushing approach or move away from the sliding rotor. The adjustment device of the present application can adjust the gap between the guide bearing bushing and the sliding rotor during the installation and operation of the guide bearing bushing without stopping the machine and removing the cover plate, thereby making maintenance and installation more convenient and making the operation of the hydro-turbine generator set safer and more reliable.

[0010] In one embodiment, the first plane is arranged to be parallel to a side of the guide bearing pad facing away from the sliding rotor; and / or

[0011] The first plane is perpendicular to an end surface of the first end.

[0012] In the embodiment of the utility model, by making the first plane of the wedge plate parallel to the side of the guide bearing pad facing away from the sliding rotor, the contact between the wedge plate and the guide bearing pad can be made into surface contact, thereby facilitating the movement of the wedge plate and making the wedge plate better support the guide bearing pad. By making the first plane perpendicular to the end surface of the first end, the processing and installation of the wedge plate can be facilitated.

[0013] In one embodiment, a first through groove is provided on a side of the guide bearing bushing facing away from the sliding rotor, the wedge plate is configured to be disposed in the first through groove, and the first plane abuts against the bottom of the first through groove, and moves along the first through groove under the drive of the driving mechanism.

[0014] In an embodiment of the utility model, by arranging the wedge plate in the first through groove, the connection between the wedge plate and the guide bearing bushing can be made more stable, and the support for the guide bearing bushing can be better. At the same time, the movement direction of the wedge plate can be limited so that its movement direction will not be offset.

[0015] In one embodiment, the slopes of the contact surfaces of the second plane and the support mechanism are both 1:(45-55).

[0016] In the embodiment of the utility model, by controlling the inclination of the second plane and the contact surface of the support mechanism, the speed of the width change of the wedge plate between the support mechanism and the guide bearing bush can be adjusted.

[0017] In one embodiment, the support mechanism includes a first support member, a second support member and a fixing member abutting against each other in sequence, a side of the first support member facing away from the second support member abuts against the second plane, and a side of the second support member facing away from the fixing member is a spherical surface.

[0018] In the embodiment of the utility model, the fixing member can provide a supporting force to the entire adjusting device, so that the wedge plate is always in contact with the first supporting member and the guide bearing bush on both sides thereof during the movement. By setting the side of the second supporting member facing away from the fixing member as a spherical surface, the first supporting member can rotate along the spherical surface of the second supporting member during the movement of the wedge plate, so that the wedge plate is easier to move between the supporting mechanism and the guide bearing bush.

[0019] In one embodiment, a second through groove is provided on a side of the first support member facing away from the second support member, the wedge plate is arranged in the second through groove, and the second plane abuts against the bottom of the second through groove; and / or

[0020] The second supporting member is partially embedded in the fixing member.

[0021] In the embodiment of the utility model, by arranging the wedge plate in the second through groove, the connection between the wedge plate and the first support member can be made more stable, the first support member can better support the wedge plate, and the moving direction of the wedge plate can be limited so that the moving direction will not deviate. By partially embedding the second support member in the fixing member, the second support member can be kept fixed, and the direct contact between the first support member and the fixing member can be avoided, thereby ensuring that the first support member can rotate along the spherical surface of the second support member to a certain extent.

[0022] In one embodiment, the diameter of the sphere corresponding to the spherical surface is 550-650 mm.

[0023] In an embodiment of the utility model, by limiting the diameter of the sphere corresponding to the spherical surface, the arc range of the first support member rotating along the spherical surface of the second support member can be limited, thereby facilitating the movement of the wedge plate while preventing the first support member from rotating too much, causing the moving direction of the wedge plate to change.

[0024] In one embodiment, the driving mechanism includes a motor and an adjusting screw, one end of the adjusting screw is connected to the motor via a coupling, the second end is provided with a groove, the other end of the adjusting screw is disposed in the groove and is threadedly connected to the groove.

[0025] In an embodiment of the utility model, the connection between the adjusting screw and the wedge plate can be achieved by arranging the adjusting screw in the groove of the second end of the wedge plate. At the same time, the two are connected by a thread, so that the adjusting screw can be rotated under the drive of the motor to drive the wedge plate to move linearly.

[0026] In one embodiment, the motor is configured to be fixed on the guide bearing pad.

[0027] In a second aspect, an embodiment of the utility model provides a hydro-generator, comprising the above-mentioned regulating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a structural schematic diagram of an adjusting device provided in an embodiment of the utility model;

[0030] Figure 2 The adjustment device provided by the embodiment of the utility model is along Figure 1 Sectional view in the AA direction;

[0031] Figure 3 is a front view of a wedge plate provided in an embodiment of the utility model;

[0032] Figure 4 is a top view of a wedge plate provided in an embodiment of the utility model;

[0033] Figure 5 The wedge plate provided by the embodiment of the utility model is Figure 3 Cross-sectional view along the BB direction.

[0034] Description of the drawings: wedge plate-1; first plane-11; second plane-12; groove-13; support mechanism-2; first support member-21; second support member-22; spherical surface-221; fixing member-23; driving mechanism-3; motor-31; adjusting screw-32; coupling-33; guide bearing bush-4; sliding rotor-5. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model. In the utility model, unless otherwise stated, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0036] First, see Figures 1 to 5 The embodiment of the utility model provides a regulating device for adjusting the gap between the guide bearing bush 4 and the sliding rotor 5 in the hydro-generator 31, comprising:

[0037] The support mechanism 2 is configured to be disposed opposite to a side of the guide bearing bush 4 facing away from the sliding rotor 5 and to form a gap;

[0038] A wedge plate 1 having a first plane 11 and a second plane 12 opposite to each other, wherein an angle is formed between the first plane 11 and the second plane 12, wherein the wedge plate 1 comprises a first end and a second end opposite to each other, wherein the thickness of the wedge plate 1 gradually increases from the first end to the second end, wherein the first end is disposed in the gap, wherein the first plane 11 is configured to abut against a surface of the guide bearing bush 4 facing away from the sliding rotor 5, and wherein the second plane 12 abuts against the support mechanism 2;

[0039] The driving mechanism 3 is connected to the second end and is used for driving the wedge plate 1 to move so as to adjust the gap.

[0040] It can be understood that the length of the wedge plate 1 (i.e., the length of the first surface and the second surface) and the width in the gap (i.e., the width of the first surface and the second surface) can be set as needed. The width of the wedge plate 1 in the gap should not be too small, otherwise the contact surface between the guide bearing bushes 4 and the support mechanism 2 at both ends will be too small, which is not conducive to its support for the guide bearing bushes 4 and the adjustment of the gap. The moving direction of the wedge plate 1 can be parallel to the side of the guide bearing bushes 4 away from the sliding rotor 5, and can have an angle with the side of the guide bearing bushes 4 away from the sliding rotor 5. It is only necessary to change the thickness between the guide bearing bushes 4 and the support mechanism 2. The moving direction of the wedge plate 1 is parallel to the side of the guide bearing bushes 4 away from the sliding rotor 5, which can facilitate its movement. The thickness of the wedge plate 1 gradually increases from the first end to the second end. The thickness of a partial area of ​​the wedge plate 1 can gradually increase from the first end to the second end, or the thickness of a partial area of ​​the wedge plate 1 can gradually increase from the first end to the second end. As long as the thickness of the wedge plate 1 arranged between the guide bearing bushing 4 and the sliding rotor 5 gradually increases from the first end to the second end, it is sufficient that the wedge plate 1 can adjust the gap between the guide bearing bushing 4 and the sliding rotor 5.

[0041] In one embodiment, the first plane 11 is configured to be parallel to a side of the guide bearing bush 4 facing away from the sliding rotor 5; and / or

[0042] The first plane 11 is perpendicular to the end surface of the first end.

[0043] It can be understood that the first plane 11 is perpendicular to the end face of the first end, so that the second plane 12 can be processed with the first plane 11 as a reference plane, so as to facilitate controlling the inclination of the second plane 12.

[0044] In one embodiment, a first through groove is provided on a side of the guide bearing bush 4 facing away from the sliding rotor 5, the wedge plate 1 is configured to be disposed in the first through groove, and the first plane 11 abuts against the bottom of the first through groove, and moves along the first through groove under the drive of the driving mechanism 3.

[0045] It can be understood that the depth of the first through groove can be set as required, and it is only necessary to ensure that the side of the wedge plate 1 that abuts against the guide bearing bush 4 is stably connected to the guide bearing bush 4. The two side surfaces of the first through groove can abut against the wedge plate 1, or there can be a certain gap between the wedge plate 1 and the wedge plate 1, and it is only necessary to facilitate the movement of the wedge plate 1 while limiting the moving direction of the wedge plate 1.

[0046] In one embodiment, the slopes of the contact surfaces of the second plane 12 and the support mechanism 2 are both 1:(45-55).

[0047] It can be understood that the contact surface between the second plane 12 and the support mechanism 2 is in surface contact, which is beneficial for the support mechanism 2 to provide sufficient supporting force for the wedge plate 1 and is also beneficial for controlling the moving direction of the wedge plate 1 .

[0048] In one embodiment, the support mechanism 2 includes a first support member 21, a second support member 22 and a fixing member 23 that are abutted in sequence, the side of the first support member 21 facing away from the second support member 22 abuts against the second plane 12, and the side of the second support member 22 facing away from the fixing member 23 is a spherical surface 221.

[0049] It can be understood that the second support member 22 and the fixing member 23 can be provided as a whole or independently. The second support member 22 and the fixing member 23 are provided separately, which can facilitate the replacement of the spherical surface 221 of the second support member 22 when it is seriously worn. The shape and size of the fixing member 23 can be set as needed, as long as it can provide sufficient support for the entire adjustment device. The shape and size of the first support member 21 can be set as needed, as long as the side of the first support member 21 away from the second support member 22 can abut against the second plane 12 and provide sufficient support for the wedge plate 1. The shape and size of the second support member 22 can be set as needed, as long as the spherical surface 221 of the second support member 22 is in full contact with the first support member 21 and provides sufficient support for the first support member 21.

[0050] In one embodiment, a second through groove is provided on a side of the first support member 21 facing away from the second support member 22, the wedge plate 1 is disposed in the second through groove, and the second plane 12 abuts against the bottom of the second through groove; and / or

[0051] The second supporting member 22 is partially embedded in the fixing member 23 .

[0052] It can be understood that the depth of the second through groove can be set as needed, as long as the side of the first support member 21 that abuts against the wedge plate 1 is stably connected to the wedge plate 1. The two side surfaces of the first through groove can abut against the wedge plate 1, or there can be a certain gap between them, as long as the movement direction of the wedge plate 1 is restricted while facilitating the movement of the wedge plate 1. The depth of the second support member 22 embedded in the fixing member 23 can be set as needed, as long as the second support member 22 is fully fixed in the fixing member 23 and the first support member 21 is convenient to rotate around the spherical surface 221 of the second support member 22.

[0053] In one embodiment, the diameter of the sphere corresponding to the spherical surface 221 is 550-650 mm.

[0054] In one embodiment, the driving mechanism 3 includes a motor 31 and an adjusting screw 32, one end of the adjusting screw 32 is connected to the motor 31 through a coupling 33, the second end is provided with a groove 13, the other end of the adjusting screw 32 is provided in the groove 13, and is connected to the groove 13 through a thread.

[0055] It can be understood that the second end of the wedge plate 1 is provided with a groove 13, and one end of the adjusting screw 32 is provided in the groove 13, and the size of the groove 13 matches the size of the adjusting screw 32. If the thickness of the second end of the wedge plate 1 (i.e., the distance between the first surface and the second surface of the second end) can meet the size requirement of the groove 13, the groove 13 can be directly provided at the second end of the wedge plate 1. If the thickness of the second end of the wedge plate 1 is smaller than the size requirement of the groove 13, the thickness of the second end of the wedge plate 1 can be adjusted to increase the thickness of the second end. The depth of the groove 13 can be set as required, as long as it can be stably connected with the adjusting screw 32, and the distance that the adjusting screw 32 can move the wedge plate 1 meets the gap adjustment requirement between the guide bearing bush 4 and the sliding rotor 5.

[0056] In one embodiment, the motor 31 is configured to be fixed on the guide bearing bush 4 .

[0057] In a second aspect, an embodiment of the utility model provides a hydro-generator 31, comprising the above-mentioned regulating device.

[0058] The above is a detailed introduction to the embodiments of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for technicians in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An adjusting device for adjusting the gap between the guide bearing bush and the sliding rotor of a hydro-turbine generator, characterized in that: include: A support mechanism is configured to be disposed opposite to a side of the guide bearing bush facing away from the sliding rotor and to form a gap; A wedge plate having a first plane and a second plane opposite to each other, an angle being formed between the first plane and the second plane, the wedge plate comprising a first end and a second end opposite to each other, a thickness of the wedge plate gradually increasing from the first end to the second end, the first end being disposed in the gap, the first plane being configured to abut against a surface of the guide bearing bushing facing away from the sliding rotor, and the second plane abutting against the supporting mechanism; a driving mechanism connected to the second end, for driving the wedge plate to move so as to adjust the gap; The support mechanism comprises a first support member, a second support member and a fixing member which are abutted in sequence, a side of the first support member facing away from the second support member abuts against the second plane, and a side of the second support member facing away from the fixing member is a spherical surface.

2. The adjusting device according to claim 1, characterized in that: The first plane is arranged to be parallel to a side of the guide bearing pad facing away from the sliding rotor; and / or The first plane is perpendicular to an end surface of the first end.

3. The adjusting device according to claim 1, characterized in that: A first through groove is provided on a side of the guide bearing bush facing away from the sliding rotor, and the wedge plate is configured to be disposed in the first through groove, and the first plane abuts against the bottom of the first through groove, and moves along the first through groove under the drive of the driving mechanism.

4. The adjusting device according to claim 1, characterized in that: The slopes of the contact surfaces of the second plane and the support mechanism are both 1:(45-55).

5. The adjusting device according to claim 1, characterized in that: A second through slot is disposed on a side of the first support member facing away from the second support member, the wedge plate is disposed in the second through slot, and the second plane abuts against a bottom of the second through slot; and / or The second supporting member is partially embedded in the fixing member.

6. The adjusting device according to claim 1, characterized in that: The diameter of the sphere corresponding to the spherical surface is 550-650mm.

7. The adjusting device according to claim 1, characterized in that: The driving mechanism includes a motor and an adjusting screw, one end of the adjusting screw is connected to the motor through a coupling, the second end is provided with a groove, the other end of the adjusting screw is arranged in the groove and connected to the groove through a thread.

8. The adjustment device according to claim 1, characterized in that: The motor is configured to be fixed on the guide bearing shoe.

9. A hydro-generator, characterized in that: Comprising an adjusting device as described in any one of claims 1-8.

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