Open type shaft sleeve mounting device for guide vane sleeve of water-turbine generator set

Abstract

The utility model discloses a water-turbine generator set guide vane sleeve open type shaft sleeve installation device in the technical field of water turbines, which comprises an auxiliary installation mechanism, the auxiliary installation mechanism comprises a first connecting assembly, one end of the first connecting assembly is provided with a second connecting assembly, and the first connecting assembly comprises a guide vane cylinder and a first sleeve of the guide vane cylinder. According to the scheme, the installation steps are simplified, and tedious links such as adjustment of a hydraulic jack and a threaded column are omitted, so that the structure of the device is simpler, installation operation is more convenient and faster, the installation efficiency is improved, and the service life of the device is prolonged. In addition, the steel and copper structures of the banding ring, the copper ring and the pile barrel pressing plate ensure the durability and stability of the device, so that the whole installation process is more efficient and safer, in a word, a more efficient, simpler, more convenient and more reliable technical scheme is provided for installation of the open type shaft sleeve, and the open type shaft sleeve installation device has high practicability and popularization value.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbines, in particular to a guide vane sleeve opening type shaft sleeve installation device for a water turbine generator set. Background Art

[0002] In small vertical hydro-turbine generator sets, the guide vane bearing consists of two bearings, upper and lower, corresponding to the upper and lower sleeves. During unit overhaul, the inner diameter of the sleeve and the outer diameter of the guide vane collar must be measured. Data comparison and analysis are then performed to determine whether the sleeve needs to be replaced or if damaged sleeves should be replaced. Some vertical hydro-turbine generator sets place the center sleeve within the guide vane sleeve of the outer top cover, creating an interference fit of approximately 0.30mm between the center sleeve and the guide vane sleeve. Some units have cylindrical sleeves that can be installed smoothly using liquid nitrogen cooling. However, using liquid nitrogen cooling for open sleeves is not feasible, as cooling can deform the sleeve, making it impossible to install. Forced installation can damage the sleeve, and the inner diameter of a forced sleeve will not meet the design range after installation due to deformation.

[0003] In previous technologies, the guide vane sleeve had to be beveled before being inserted into the sleeve. After the bevel was evenly inserted, an installation tool consisting of a hydraulic jack threaded column and a pressure plate was used to press the sleeve into the sleeve. However, due to the limited capacity of the hydraulic jack, the sleeve could not be pressed into place in one go. It was often necessary to relieve the pressure from the jack, adjust the height of the threaded column nut, and repeatedly press the sleeve into place. This installation method was time-consuming and labor-intensive. Based on this, we propose an installation device for the guide vane sleeve of a hydro-turbine generator set with an open-type sleeve. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the present invention to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] Therefore, the purpose of the present invention is to provide a hydraulic generator set guide vane sleeve open type sleeve installation device, which can solve the problem in the current technology that the sleeve installation process is time-consuming and labor-intensive and the sleeve cannot be pressed into place at one time.

[0006] To solve the above technical problems, the present invention provides a guide vane sleeve opening type shaft sleeve installation device for a hydro-turbine generator set, which adopts the following technical solution: comprising an auxiliary installation mechanism, the auxiliary installation mechanism comprising a first connecting assembly, one end of which is provided with a second connecting assembly, the first connecting assembly comprising a guide vane cylinder, a first sleeve of the guide vane cylinder, and an end of the guide vane cylinder away from the first sleeve further provided with a second sleeve;

[0007] The second connecting component includes a first connecting component, which is arranged inside the second sleeve. The bottom of the first connecting component is further connected to the second connecting component.

[0008] By adopting the above technical solution, the utility model of the turbine guide vane sleeve open-type shaft sleeve installation device aims to break through the technical limitations of the traditional turbine generator set guide vane sleeve installation, especially to provide an innovative solution for the installation problem of the open-type shaft sleeve. Based on the goal of simplifying the installation process and improving the installation efficiency, the device is mainly composed of three parts: a clamping ring, a pile barrel pressure plate and a copper ring. The clamping ring is designed to stably fix the open-type shaft sleeve to prevent the opening part of the shaft sleeve from being dislocated during the installation process. The pile barrel pressure plate is used in conjunction with the copper ring. The copper ring therebetween not only serves as a buffer medium to avoid deformation or damage of the shaft sleeve during the hammering process, but also effectively transmits the hammering force, so that the shaft sleeve is smoothly and evenly pressed into the guide vane sleeve. This whole set of installation methods eliminates the previous complicated procedures of relying on threaded columns for guidance and using hydraulic jacks to generate pressure, and instead adopts a direct hammering method to achieve the installation of the shaft sleeve through physical direct force.

[0009] Optionally, the first connecting component includes a connecting sleeve, and the outer sleeve of the connecting sleeve is connected to a clamping ring.

[0010] By adopting the above technical solution, this solution arranges a connecting clamping ring on the outside of the connecting sleeve. During the installation process, the clamping ring can prevent the connecting sleeve from being displaced or expanding due to uneven force, thereby avoiding dislocation and deformation of the connecting sleeve.

[0011] Optionally, the outer diameter of the clamping ring matches the inner diameter of the second sleeve.

[0012] By adopting the above technical solution, the outer diameter of the clamping ring in this solution matches the inner diameter of the second sleeve, which helps to evenly distribute the force to the connecting sleeve during the installation process, ensuring that the connecting sleeve will not be deformed or damaged due to uneven impact force, thereby ensuring the installation quality.

[0013] Optionally, the second connecting component includes a pile barrel pressure plate, and a connecting pile barrel is installed on the top of the pile barrel pressure plate.

[0014] By adopting the above technical solution, the pile barrel pressure plate in this solution serves as the main force-bearing component, which is used to receive and transmit pressure during the installation process. It can evenly transmit external force to the connecting sleeve, so that the connecting sleeve can be evenly pressurized into the predetermined position.

[0015] Optionally, the outer diameter of the connecting pile barrel matches the inner diameter structure of the connecting sleeve.

[0016] By adopting the above technical solution, the present solution achieves precise centering during the installation process by ensuring that the outer diameter of the connecting pile barrel and the inner diameter of the connecting sleeve are accurately matched, which is particularly important for ensuring assembly quality because any slight deviation may lead to improper installation of the connecting sleeve, which may further lead to mechanical failure or reduced efficiency.

[0017] Optionally, the second connecting component further comprises a metal ring, and the metal ring is sleeved and connected to the outside of the connecting pile.

[0018] By adopting the above technical solution, this solution can play a buffering role when force is applied, such as during hammering operation, by adding a metal ring to the outside of the connecting pile barrel, and disperse the force to a wider range, thereby reducing local damage to the connecting pile barrel or the connecting sleeve and preventing cracks or deformation.

[0019] Optionally, the clamping ring and the pile barrel pressure plate are both made of steel.

[0020] By adopting the above technical solution, the clamping ring and pile barrel pressure plate in this solution are both used as pressure-bearing components and are both made of steel. Since steel is a material with high strength and good durability, it can ensure that the pressure-bearing components will not easily deform or break during the installation process and long-term use.

[0021] Optionally, the metal ring is made of copper material, and the metal ring is located between the pile barrel pressure plate and the end surface of the connecting sleeve.

[0022] By adopting the above technical solution, the metal ring in this solution is made of copper material. Metal copper is softer than steel and has a certain plasticity. When the pile barrel pressure plate applies pressure to the connecting sleeve, the copper metal ring can play a certain buffering and shock-absorbing role, reducing the instantaneous impact caused by the contact of hard materials.

[0023] In summary, the present invention includes at least one of the following beneficial effects: Compared with the traditional sleeve installation technology, the turbine guide vane sleeve open sleeve installation device of the present invention shows significant advantages in improving installation efficiency, simplifying installation process, etc. First, with the help of the design of the clamping ring to firmly hold the sleeve, the risk of sleeve dislocation during installation is greatly reduced, and the installation accuracy is ensured. Secondly, the use of the pile barrel pressure plate and the copper ring to apply a uniform hammering force to the sleeve avoids the problem of sleeve deformation or damage that is easy to occur when using a hydraulic jack, and greatly shortens the installation time. In addition, by simplifying the steps and eliminating the tedious links such as the hydraulic jack and the threaded column adjustment, not only the device structure is simpler, but also the installation operation is more convenient. The steel and copper structure of the clamping ring, the copper ring and the pile barrel pressure plate also ensure the durability and stability of the device, making the entire installation process more efficient and safe. In short, the present invention provides a more efficient, simple and reliable technical solution for the installation of open sleeves, which has strong practicality and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is a schematic structural diagram of the first connecting component of the present utility model;

[0027] Figure 3 This is a schematic structural diagram of the second connecting component of the present invention;

[0028] Figure 4 This is a schematic structural diagram of the first connecting component of the present utility model;

[0029] Figure 5 This is a schematic structural diagram of the second connecting component of the present utility model.

[0030] Explanation of the reference numerals: 100, auxiliary installation mechanism; 101, first connecting assembly; 101a, guide vane cylinder; 101b, first sleeve; 101c, second sleeve; 102, second connecting assembly; 102a, first connecting component; 102a-1, connecting sleeve; 102a-2, tightening ring; 102b, second connecting component; 102b-1, pile barrel pressure plate; 102b-2, connecting pile barrel; 102b-3, metal ring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-5 The utility model is described in further detail.

[0032] Example 1, refer to Figure 1-4 The utility model discloses a guide vane sleeve opening type shaft sleeve installation device for a hydro-generator set.

[0033] The auxiliary installation mechanism 100 includes a first connecting assembly 101, a second connecting assembly 102 is provided at one end of the first connecting assembly 101, the first connecting assembly 101 includes a guide vane cylinder 101a, a first sleeve 101b of the guide vane cylinder 101a, and a second sleeve 101c is further provided at one end of the guide vane cylinder 101a away from the first sleeve 101b;

[0034] The second connecting assembly 102 includes a first connecting component 102a. The first connecting component 102a is disposed inside the second sleeve 101c. The bottom of the first connecting component 102a is further connected to the second connecting component 102b.

[0035] The first connecting component 102a includes a connecting sleeve 102a-1, and the external sleeve of the connecting sleeve 102a-1 is connected to a clamping ring 102a-2. By sleeve-connecting the clamping ring 102a-2 on the external side of the connecting sleeve 102a-1, the clamping ring 102a-2 can prevent the connecting sleeve 102a-1 from being displaced or expanding due to uneven force during installation, thereby avoiding dislocation and deformation of the connecting sleeve 102a-1.

[0036] Example 2, refer to Figure 2-5 In this embodiment, in order to solve the problem in the current technology that the shaft sleeve installation process is time-consuming and labor-intensive and the shaft sleeve cannot be pressed into place in one go, based on the same concept as the above-mentioned embodiment 1, the guide vane sleeve opening type shaft sleeve installation device of the hydro-generator set further includes:

[0037] The outer diameter of the clamping ring 102a-2 matches the inner diameter of the second sleeve 101c. The outer diameter of the clamping ring 102a-2 in this solution matches the inner diameter of the second sleeve 101c, which helps to evenly distribute the force to the connecting sleeve 102a-1 during the installation process, ensuring that the connecting sleeve 102a-1 will not be deformed or damaged due to uneven impact force, thereby ensuring the installation quality.

[0038] The second connecting component 102b includes a pile barrel pressure plate 102b-1, and a connecting pile barrel 102b-2 is installed on the top of the pile barrel pressure plate 102b-1. The pile barrel pressure plate 102b-1 in this solution serves as the main force-bearing component, and is used to receive and transmit pressure during the installation process. It can evenly transmit external force to the connecting sleeve 102a-1, so that the connecting sleeve 102a-1 can be evenly pressurized into a predetermined position.

[0039] The outer diameter of the connecting pile 102b-2 is structurally matched with the inner diameter of the connecting sleeve 102a-1. By ensuring that the outer diameter of the connecting pile 102b-2 and the inner diameter of the connecting sleeve 102a-1 are precisely matched, precise alignment is achieved during the installation process, which is particularly important for ensuring assembly quality, because any slight deviation may cause improper installation of the connecting sleeve 102a-1, which may further cause mechanical failure or reduced efficiency.

[0040] Example 3, refer to Figure 4-5 In this embodiment, in order to solve the problem in the current technology that the shaft sleeve installation process is time-consuming and labor-intensive and the shaft sleeve cannot be pressed into place in one go, based on the same concept as the above-mentioned embodiment 1, the guide vane sleeve opening type shaft sleeve installation device of the hydro-generator set further includes:

[0041] The second connecting component 102b also includes a metal ring 102b-3, which is sleeved and connected to the outside of the connecting pile tube 102b-2. The metal ring 102b-3 installed on the outside of the connecting pile tube 102b-2 can play a buffering role when force is applied, such as during a hammering operation, and disperse the force to a wider range, thereby reducing local damage to the connecting pile tube 102b-2 or the connecting shaft sleeve 102a-1 and preventing cracks or deformation.

[0042] The clamping ring 102a-2 and the pile barrel pressure plate 102b-1 are both made of steel, and the metal ring 102b-3 is made of copper. The clamping ring 102a-2 and the pile barrel pressure plate 102b-1 in this solution are both pressure-bearing components and are both made of steel. Since steel is a material with high strength and good durability, it can ensure that the pressure-bearing components will not easily deform or break during the installation process and long-term use.

[0043] The metal ring 102b-3 is located between the pile barrel pressure plate 102b-1 and the end face of the connecting sleeve 102a-1. The metal ring 102b-3 in this solution is made of copper material. Metal copper is softer than steel and has a certain plasticity. When the pile barrel pressure plate 102b-1 applies pressure to the connecting sleeve 102a-1, the copper metal ring can play a certain buffering and shock-absorbing role, reducing the instantaneous impact caused by the contact of hard materials.

[0044] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A guide vane sleeve opening type shaft sleeve installation device for a hydro-generator set, comprising an auxiliary installation mechanism (100), characterized in that: The auxiliary installation mechanism (100) comprises a first connecting assembly (101), one end of the first connecting assembly (101) is provided with a second connecting assembly (102), the first connecting assembly (101) comprises a guide vane cylinder (101a), a first sleeve (101b) of the guide vane cylinder (101a), and one end of the guide vane cylinder (101a) away from the first sleeve (101b) is further provided with a second sleeve (101c); The second connecting component (102) comprises a first connecting component (102a), the first connecting component (102a) is arranged inside the second sleeve (101c), and the bottom of the first connecting component (102a) is further connected to the second connecting component (102b).

2. The hydraulic generator guide vane sleeve opening type shaft sleeve installation device according to claim 1, characterized in that: The first connecting component (102a) comprises a connecting sleeve (102a-1), and the outer portion of the connecting sleeve (102a-1) is sleeved and connected with a tightening ring (102a-2).

3. The hydraulic turbine generator set guide vane sleeve opening type shaft sleeve installation device according to claim 2, characterized in that: The outer diameter of the clamping ring (102a-2) matches the inner diameter of the second sleeve (101c).

4. The hydraulic generator guide vane sleeve opening type shaft sleeve installation device according to claim 3, characterized in that: The second connecting component (102b) comprises a pile barrel pressure plate (102b-1), and a connecting pile barrel (102b-2) is installed on the top of the pile barrel pressure plate (102b-1).

5. The hydraulic generator guide vane sleeve opening type shaft sleeve installation device according to claim 4, characterized in that: The outer diameter of the connecting pile cylinder (102b-2) matches the inner diameter structure of the connecting shaft sleeve (102a-1).

6. The hydraulic generator guide vane sleeve opening type shaft sleeve installation device according to claim 5, characterized in that: The second connecting component (102b) further comprises a metal ring (102b-3), and the metal ring (102b-3) is sleeved and connected to the outside of the connecting pile tube (102b-2).

7. The hydraulic generator guide vane sleeve opening type shaft sleeve installation device according to claim 6, characterized in that: The clamping ring (102a-2) and the pile tube pressing plate (102b-1) are both made of steel.

8. The hydraulic generator guide vane sleeve opening type shaft sleeve installation device according to claim 7, characterized in that: The metal ring (102b-3) is made of copper material, and the metal ring (102b-3) is located between the pile cylinder pressure plate (102b-1) and the end surface of the connecting shaft sleeve (102a-1).

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