Adjustable rotor limiting device

Abstract

The utility model relates to the technical field of rotor limiting, in particular to an adjustable rotor limiting device which comprises a supporting assembly, a connecting piece, an installation piece connected with the top of the connecting piece, a fixing rod connected with the top of the installation piece, and a rolling assembly arranged on the top of the fixing rod. Comprising a connecting piece and a rotating piece arranged at the top of the connecting piece. The two rotating parts are arranged on the two sides of the supporting assembly, hard contact can be converted into rolling contact through the two rotating parts during rotation, the rotor can be pressed, and therefore the rotor cannot move in the axial direction during rotation, a worker can conveniently read a meter for measurement, and meanwhile the situation that the position of the rotor is damaged due to the fact that the rotor moves at will is avoided.

Description

Technical Field

[0001] This utility model relates to the field of rotor limiting technology, and in particular to an adjustable rotor limiting device. Background Technology

[0002] During routine turbine unit maintenance, it is necessary to measure and adjust the rotor's center. During rotor rotation, axial displacement can easily occur, causing gauge needle fluctuations and increasing data reading errors. This necessitates frequent data retesting, disrupting the workflow and potentially delaying the maintenance schedule. Furthermore, rotor rotation can lead to axial movement of the rotor, causing wear on the turbine thrust bearings and even rubbing between moving and stationary turbine components, posing significant safety hazards to the equipment.

[0003] Currently, during turbine unit maintenance, temporary top shaft limiting devices are usually made of steel plates. These temporary top shaft limiting fixtures need to be measured, cut, and processed according to the actual dimensions on site. Due to the specificity of the dimensional data, they cannot be reused on other bearing positions or other units. At the same time, it must be considered that during the rotor rotation process, the contact position between the rotor and the steel plate top shaft is a hard contact, which is prone to rotor rotation not being smooth, or even damage to the rotor contact position, resulting in poor performance. Utility Model Content

[0004] In view of the problem that the rotor contact position is damaged in the existing technology, resulting in poor performance, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an adjustable rotor limiting device, comprising,

[0006] The support assembly includes a connecting piece, a mounting piece connected to the top of the connecting piece, and a fixing rod connected to the top of the mounting piece; and,

[0007] A rolling assembly, which is disposed on the top of the fixed rod, includes a connector and a rotating component disposed on the top of the connector.

[0008] In a preferred embodiment of the adjustable rotor limiting device of this utility model, the connecting piece is perpendicular to the mounting piece, and the fixing rod is perpendicular to the mounting piece.

[0009] As a preferred embodiment of the adjustable rotor limiting device of this utility model, the connecting plate has a through hole on one side, the fixing rod has a connecting hole on one side, and a nut is installed on one side of the fixing rod.

[0010] In a preferred embodiment of the adjustable rotor limiting device of this utility model, the connecting member includes a threaded rod, a connector connected to one side of the threaded rod, and a rotating shaft connected to the top of the connector.

[0011] In a preferred embodiment of the adjustable rotor limiting device of this utility model, the outer wall of the threaded rod is threadedly connected to the inner wall of the nut, and the outer wall of the threaded rod is in contact with the inner wall of the connecting hole.

[0012] As a preferred embodiment of the adjustable rotor limiting device of this utility model, the rotating component includes a connecting ring, a rotating wheel connected to the top of the connecting ring, and a placement groove opened on the top of the rotating wheel.

[0013] In a preferred embodiment of the adjustable rotor limiting device of this utility model, the inner wall of the connecting ring is rotatably connected to the outer wall of the rotating shaft, and the inner wall of the rotating wheel is rotatably connected to the top outer wall of the rotating shaft.

[0014] As a preferred embodiment of the adjustable rotor limiting device of this utility model, a bearing is provided at the top of the rotating shaft, and the bearing is engaged with the inner wall of the placement groove.

[0015] In a preferred embodiment of the adjustable rotor limiting device of this utility model, the rotating shaft and the threaded rod are perpendicular to each other.

[0016] In a preferred embodiment of the adjustable rotor limiting device of this utility model, the diameter of the rotor is larger than the diameter of the connecting ring.

[0017] The beneficial effects of this utility model are as follows: By setting two rotating parts on both sides of the support assembly, the two rotating parts can change the hard contact to rolling contact during rotation and press the rotor down, so that the rotor will not move axially when rotating, which makes it easier for workers to read and measure the meter, and at the same time avoids the situation of positional damage caused by the rotor moving randomly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the load-bearing component structure in this utility model.

[0021] Figure 3 This is a schematic diagram of the color developing box structure in this utility model.

[0022] Figure 4 This is a schematic diagram of the maintenance component structure in this utility model. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0026] Example 1

[0027] Reference Figures 1-3 This is the first embodiment of the present invention, which provides an adjustable rotor limiting device.

[0028] Specifically, the support assembly 100 includes a connecting piece 101, a mounting piece 102 connected to the top of the connecting piece 101, and a fixing rod 103 connected to the top of the mounting piece 102. The rolling assembly 200 is disposed on the top of the fixing rod 103 and includes a connector 201 and a rotating member 202 disposed on the top of the connector 201. There are two rolling assemblies 200, which are respectively disposed on both sides of the fixing rod 103.

[0029] When using the limiting device, the mounting plate 102 needs to be installed on the adjacent bearing of any pair of wheels. The distance between the two rotating parts 202 is adjusted according to the distance between the bosses on both sides of the rotor journal, so that the two rotating parts 202 contact both sides of the rotor pair. The angle of the rotating parts 202 is then adjusted. When the rotor rotates, the rotating parts 202 rotate with it, thereby limiting the axial position of the rotor and preventing the rotor from deviating. This avoids the dial indicator needle from jumping and reading inaccurate values ​​due to displacement between the dial indicator needle and the rotor pair, improves the accuracy of the dial indicator data reading, greatly improves the efficiency of measuring and adjusting the center of the rotor pair, and avoids equipment damage.

[0030] Example 2

[0031] Reference Figures 1-3 This is the second embodiment of the present invention, which is based on the previous embodiment but differs in that...

[0032] The connecting piece 101 and the mounting piece 102 are perpendicular to each other, and the fixing rod 103 is perpendicular to the mounting piece 102. The connecting piece 101, the mounting piece 102 and the fixing rod 103 are integrated and made of steel. When installing the limiting device, the connecting piece 101 needs to be fixed to the rotating wheel.

[0033] A through hole 104 is provided on one side of the connecting piece 101, and a connecting hole 105 is provided on one side of the fixing rod 103. A nut 106 is installed on one side of the fixing rod 103. The connecting member 201 includes a threaded rod 201a, a connecting head 201b connected to one side of the threaded rod 201a, and a rotating shaft 201c connected to the top of the connecting head 201b. The outer wall of the threaded rod 201a is threadedly connected to the inner wall of the nut 106, and the outer wall of the threaded rod 201a contacts the inner wall of the connecting hole 105. The rotating member 202 includes a connecting ring 202a, a circular ring 202b connected to the top of the connecting ring 202a, and a placement groove 202c opened on the top of the circular ring 202b. The inner wall of the connecting ring 202a is rotatably connected to the outer wall of the rotating shaft 201c. The inner wall of 2b is rotatably connected to the top outer wall of the rotating shaft 201c. The top of the rotating shaft 201c is provided with a bearing 203, which is snapped into the inner wall of the placement groove 202c. The rotating shaft 201c and the threaded rod 201a are perpendicular to each other. The diameter of the ring 202b is larger than the diameter of the connecting ring 202a. The distance between the ring 202b and the fixed rod 103 can be adjusted by rotating the threaded rod 201a. When limiting the position, the top of the rotor pair needs to be pressed down by the ring 202b, and the connecting ring 202a needs to be pressed against one side of the rotor pair to limit the movement space of the rotor pair. In this way, under the restriction of the two rotating parts 202, the rotor pair can be completely fixed in the designated position, while the rotor pair can still rotate.

[0034] Example 3

[0035] Reference Figures 1-4 This is the third embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that the replaceable connector 201 can be adapted to the rotor pair under different conditions.

[0036] Specifically, the connector 201 includes a threaded rod 201a, a connector 201b connected to one side of the threaded rod 201a, and a rotating shaft 201c connected to the top of the connector 201b. Since the heights of different rotor pairs are different, the rotating shaft 201c can be replaced with a connector rod that is threaded only at the bottom. The bottom thread of this connector rod is threaded to the connector 201b. In this way, when dealing with rotor pairs of different heights, the rotating component 202 can be raised or lowered by rotating the connector rod, thereby pressing down the rotor pairs of different heights.

[0037] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0038] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to the implementation of the present invention) may be omitted.

[0039] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An adjustable rotor limiting device, characterized in that: include, The support assembly (100) includes a connecting piece (101), a mounting piece (102) connected to the top of the connecting piece (101), and a fixing rod (103) connected to the top of the mounting piece (102); and, A rolling assembly (200) is disposed on the top of the fixed rod (103) and includes a connector (201) and a rotating member (202) disposed on the top of the connector (201).

2. The adjustable rotor limiting device as described in claim 1, characterized in that: The connecting piece (101) is perpendicular to the mounting piece (102), and the fixing rod (103) is perpendicular to the mounting piece (102).

3. The adjustable rotor limiting device as described in claim 2, characterized in that: The connecting piece (101) has a through hole (104) on one side, the fixing rod (103) has a connecting hole (105) on one side, and a nut (106) is installed on one side of the fixing rod (103).

4. The adjustable rotor limiting device as described in claim 3, characterized in that: The connector (201) includes a threaded rod (201a), a connector (201b) connected to one side of the threaded rod (201a), and a rotating shaft (201c) connected to the top of the connector (201b).

5. The adjustable rotor limiting device as described in claim 4, characterized in that: The outer wall of the threaded rod (201a) is threadedly connected to the inner wall of the nut (106), and the outer wall of the threaded rod (201a) is in contact with the inner wall of the connecting hole (105).

6. The adjustable rotor limiting device as described in claim 5, characterized in that: The rotating component (202) includes a connecting ring (202a), a rotating wheel (202b) connected to the top of the connecting ring (202a), and a placement groove (202c) opened on the top of the rotating wheel (202b).

7. The adjustable rotor limiting device as described in claim 6, characterized in that: The inner wall of the connecting ring (202a) is rotatably connected to the outer wall of the rotating shaft (201c), and the inner wall of the rotating wheel (202b) is rotatably connected to the top outer wall of the rotating shaft (201c).

8. The adjustable rotor limiting device as described in claim 7, characterized in that: The top of the rotating shaft (201c) is provided with a bearing (203), which is engaged with the inner wall of the placement groove (202c).

9. The adjustable rotor limiting device as described in claim 8, characterized in that: The rotating shaft (201c) is perpendicular to the threaded rod (201a).

10. The adjustable rotor limiting device as described in claim 9, characterized in that: The diameter of the rotating wheel (202b) is larger than the diameter of the connecting ring (202a).

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