Water-turbine generator set pin dismantling tool
By designing a waterwheel generator set pin removal tool including full-tooth screw, nut, sleeve and washer, the problem of pin jamming and difficult to remove is solved, and a fast and safe maintenance operation is achieved, and maintenance efficiency is improved.
Patent Information
- Application Number
- CN202421112273.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The pins in the hydrowheel generator set are prone to being stuck and difficult to remove due to the small matching gap or the unit operation, resulting in difficulty in maintenance work.
A waterwheel generator set pin removal tool is designed, including a full-tooth screw, nut, sleeve and washer. It is fixedly connected to the pin through a full-tooth screw, and the nut is threaded to the screw. The sleeve and washer are used to enhance the tightening force to achieve Quick removal of pins.
This tool can remove pins safely, conveniently and quickly in a limited space, improving the efficiency of maintenance work of the hydropower generator set.
Smart Images
Figure CN222430638U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of hydropower engineering construction, and in particular relates to a tool for removing pins of a hydro-generator set. Background Art
[0002] At present, large and medium-sized hydropower stations in China adopt vertical shaft semi-umbrella structure, pumped storage power stations and small hydropower stations adopt vertical shaft suspended impact structure, and the components of hydro-turbine generator units are all connected by pin positioning, with the pin range of φ30~48mm. The pin matching clearance of hydro-turbine generator unit equipment is too small or due to reasons such as unit operation, it is difficult to remove the pins. How to remove the pins safely, conveniently and quickly in a limited space has become an urgent problem to be solved in the maintenance of hydro-turbine generator units. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a tool which has a simple structure, is easy to use and can quickly remove the pins of a hydro-generator set.
[0004] The technical solution of the utility model is: a pin removal tool for a hydro-turbine generator set, comprising: a full-thread screw, a nut, a sleeve, and a washer, one end of the full-thread screw is fixedly connected to the pin, the nut is threadedly connected to the other end of the full-thread screw, the sleeve is sleeved on the rod body of the full-thread screw and is located below the nut, the top of the sleeve is connected to the bottom of the nut, and the washer is located between the inner wall of the sleeve and the rod body of the full-thread screw and is respectively connected to the inner wall of the sleeve and the rod body of the full-thread screw.
[0005] Furthermore, the length of the full-thread screw is 300-350 mm, the length of the sleeve is 250-300 mm, and the thickness of the gasket is 10-16 mm.
[0006] The beneficial effects of the utility model are as follows: the pin removal tool of the hydro-turbine generator set of the utility model is installed by installing a full-thread screw on the pin and tightening it, and then installing a sleeve, a washer and a nut in sequence. Only the nut needs to be tightened clockwise, and the full-thread screw will drive the pin to move upward, thereby removing the pin. The whole operation process is convenient and fast, thereby improving the maintenance efficiency of the hydro-turbine generator set. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0008] Figure 1 The utility model is a structural schematic diagram of a pin removal tool for a hydro-generator set.
[0009] In the figure: 1-full-thread screw, 2-nut, 3-sleeve, 4-washer, 5-pin. DETAILED DESCRIPTION
[0010] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0011] like Figure 1 As shown, a pin removal tool for a hydro-turbine generator set comprises: a full-thread screw 1 (M20mm), a nut 2 (standard M20 nut, strength grade 8.8), a sleeve 3 (DN50x5mm thick arm tube), and a washer 4 (inner diameter DN22mm, outer diameter φ56mm, made of Q245 steel plate). One end of the full-thread screw 1 is fixedly connected to the pin 5, and the nut 2 is threadedly connected to the other end of the full-thread screw 1. The sleeve 3 is sleeved on the rod body of the full-thread screw 1 and is located below the nut 2. The top of the sleeve 3 is connected to the bottom of the nut 2. The washer 4 is located between the inner wall of the sleeve 3 and the rod body of the full-thread screw 1 and is respectively connected to the inner wall of the sleeve 3 and the rod body of the full-thread screw 1.
[0012] Preferably, further, the full-thread screw 1 is 300-350 mm long, the sleeve 3 is 250-300 mm long, and the washer 4 is 10-16 mm thick.
[0013] When in use, install the full-thread screw 1 on the pin 5 and tighten it, then install the sleeve 3, the washer 4 and the nut 2 in order, and then tighten the nut 2 clockwise, and the full-thread screw 1 will drive the pin 5 to move upward, so that the pin 5 can be taken out.
[0014] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments and various changes can be made thereto within the knowledge scope of those skilled in the art.
Claims
1. A tool for removing pins of a hydro-generator set, characterized in that: include: A full-thread screw (1), a nut (2), a sleeve (3), and a washer (4), wherein one end of the full-thread screw (1) is fixedly connected to a pin (5), the nut (2) is threadedly connected to the other end of the full-thread screw (1), the sleeve (3) is sleeved on the rod body of the full-thread screw (1) and is located below the nut (2), the top of the sleeve (3) is connected to the bottom of the nut (2), and the washer (4) is located between the inner wall of the sleeve (3) and the rod body of the full-thread screw (1) and is respectively connected to the inner wall of the sleeve (3) and the rod body of the full-thread screw (1).
2. A hydro-generator pin removal tool according to claim 1, characterized in that: The full-thread screw (1) has a length of 300-350 mm, the sleeve (3) has a length of 250-300 mm, and the washer (4) has a thickness of 10-16 mm.