Dynamic balance screw plug mounting device for gas turbine rotor

Abstract

The utility model provides a dynamic balance screw plug mounting device for a gas turbine rotor, and relates to the technical field of gas turbines. A dynamic balance screw plug mounting device for a gas turbine rotor comprises a connecting rod and an operating rod, and one end of the connecting rod is provided with an assembly part used for being connected with a dynamic balance screw plug; the operating rod penetrates through the side wall of the end, away from the assembly part, of the connecting rod. The assembly part is provided with a limiting assembly, an assembly groove matched with the assembly part is formed in the top of the dynamic balance screw plug, and a limiting groove matched with the limiting assembly is formed in the side wall of the assembly groove. The device can effectively solve the problems that a dynamic balance screw plug is difficult to install, time-consuming, labor-consuming and complex to operate, is simple in structure and convenient and fast to use, can effectively improve the working efficiency, and has extremely high popularization and application values.

Description

Technical Field

[0001] The present application relates to the technical field of gas turbines, and in particular to a dynamic balancing screw installation device for a gas turbine rotor. Background Art

[0002] Gas turbines are key equipment in the military, chemical and electric power industries, and the rotor is the core component. During the operation of the unit, the unstable center of gravity of the rotor will cause abnormal vibration, which will lead to rotor damage and affect the safety of the unit.

[0003] In order to avoid abnormal vibration of the rotor, it is usually necessary to conduct an off-table or online dynamic balancing test on the rotor. By measuring the rotor's speed, phase and amplitude, the weight and angle of the required additional counterweight can be calculated, so that the rotor can reach a relatively ideal balanced state and ensure that no abnormal vibration occurs.

[0004] When the rotor is dynamically balanced online, it is often necessary to wait for the unit to cool down before installing the dynamic balancing screws on the rotor through the manhole or corresponding window; the conventional installation method is time-consuming and labor-intensive, consuming manpower, and seriously affecting work efficiency. Utility Model Content

[0005] The purpose of the present application is to provide a dynamic balancing screw installation device for a gas turbine rotor, which can effectively solve the problems of difficult, time-consuming, labor-intensive and complicated operation of dynamic balancing screw installation. It has a simple structure, is convenient and quick to use, can effectively improve work efficiency, and has extremely high promotion and application value.

[0006] The technical solution of this application is as follows:

[0007] The embodiment of the present application provides a dynamic balancing screw plug installation device for a gas turbine rotor, which includes a connecting rod and an operating rod, one end of the connecting rod is provided with an assembly part for connecting the dynamic balancing screw plug; the operating rod penetrates the side wall of one end of the connecting rod away from the assembly part;

[0008] The assembly part is provided with a limit assembly, the top of the dynamic balancing screw plug is provided with an assembly groove matched with the assembly part, and the side wall of the assembly groove is provided with a limit groove matched with the limit assembly.

[0009] Further, in some embodiments of the present application, the above-mentioned limiting assembly includes a plug, an elastic member and a limiting bead, and two ends of the above-mentioned elastic member are respectively connected to the above-mentioned plug and the above-mentioned limiting bead;

[0010] The assembly part is provided with an installation slot, the plug is embedded in one end of the installation slot and the outer wall is flush with or lower than the side wall of the assembly part, the elastic part is passed through the installation slot, and the limit bead is embedded in the other end of the installation slot and partially protrudes from the side wall of the assembly part;

[0011] The above-mentioned limiting groove is matched with the above-mentioned limiting bead.

[0012] Furthermore, in some embodiments of the present application, the inner diameter of the opening of one end of the above-mentioned installation groove close to the above-mentioned limiting bead is slightly smaller than the outer diameter of the above-mentioned limiting bead, so that the above-mentioned limiting bead can partially protrude to the outside of the above-mentioned installation groove port without falling off.

[0013] Furthermore, in some embodiments of the present application, the elastic member is a spring, and the limiting bead is a steel ball.

[0014] Furthermore, in some embodiments of the present application, the inner wall of the installation through groove is provided with an internal thread, and the outer wall of the plug is provided with an external thread matching the internal thread.

[0015] Further, in some embodiments of the present application, the number of the above-mentioned installation grooves, the above-mentioned limiting components and the above-mentioned limiting grooves is multiple, and the multiple above-mentioned limiting components are respectively arranged in the above-mentioned corresponding installation grooves; and the multiple above-mentioned limiting components are respectively adapted to the above-mentioned corresponding limiting grooves.

[0016] Furthermore, in some embodiments of the present application, the above-mentioned assembly part is in a prism shape, and the above-mentioned assembly groove is adapted to the above-mentioned prism-shaped assembly part.

[0017] Furthermore, in some embodiments of the present application, the axial direction of the connecting rod is perpendicular to the axial direction of the operating rod.

[0018] Further, in some embodiments of the present application, the connecting rod is provided with a plurality of through hole groups, any one of the through hole groups includes two through holes arranged opposite to each other, and any one of the through holes is arranged on the end side wall of the connecting rod away from the assembly; the operating rod passes through the connecting rod through any one of the through hole groups.

[0019] Further, in some embodiments of the present application, the number of the above-mentioned through hole groups is 2, there are 4 above-mentioned through holes in total, and the axial angle between any two adjacent above-mentioned through holes is 90°.

[0020] Furthermore, in some embodiments of the present application, the connecting rod is a hollow structure.

[0021] Furthermore, in some embodiments of the present application, the connecting rod is provided with a hollow portion and a solid portion, the solid portion is close to the assembly part and connected to the assembly part, and the hollow portion is located above the solid portion.

[0022] Compared with the prior art, the embodiments of the present application have at least the following advantages or beneficial effects:

[0023] In response to the above aspects, an embodiment of the present application provides a dynamic balancing screw installation device for a gas turbine rotor. When the dynamic balancing screw needs to be installed, the connecting rod is held to insert the assembly part into the assembly groove of the dynamic balancing screw. The dynamic balancing screw is limited and fixed by using the limit assembly on the assembly part in cooperation with the limit groove in the assembly groove. The dynamic balancing screw is installed on the installation device, and then the operating rod is inserted through the rear end of the operating rod, and the operating rod is used to apply force to install the dynamic balancing screw. After the installation is completed, the entire installation device can be pulled out.

[0024] The entire installation device has a simple structure and is quick and convenient to operate, which can effectively improve work efficiency, save time and labor, and is conducive to large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of a dynamic balancing screw plug installation device for a gas turbine rotor provided in an embodiment of the present application;

[0027] Figure 2 This is a schematic diagram of the structure of the dynamic balancing screw plug in the embodiment of the present application;

[0028] Figure 3 A cross-sectional view of the installation device in the embodiment of the present application;

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0030] Figure numerals: 1-connecting rod, 11-hollow part, 12-solid part, 2-operating rod, 3-assembly part, 4-limiting assembly, 41-plug, 42-elastic part, 43-limiting bead, 5-through hole, 6-dynamic balancing screw plug, 61-assembly groove, 62-limiting groove. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the embodiments of the present application, it should be noted that if the terms "inside", "outside", etc. appear to indicate an orientation or position relationship, it is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In the description of the embodiments of the present application, "plurality" means at least 2.

[0036] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "connection", etc. 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0038] The features and performance of the present application are further described in detail below in conjunction with the embodiments.

[0039] Example 1

[0040] See also Figure 1 to Figure 4 The embodiment of the present application provides a dynamic balancing screw plug installation device for a gas turbine rotor, which includes a connecting rod 1 and an operating rod 2. One end of the connecting rod 1 is provided with an assembly part 3 for connecting the dynamic balancing screw plug 6; the operating rod 2 penetrates the side wall of one end of the connecting rod 1 away from the assembly part 3;

[0041] The assembly part 3 is provided with a limit assembly 4 , the top of the dynamic balancing screw plug 6 is provided with an assembly groove 61 matched with the assembly part 3 , and the side wall of the assembly groove 61 is provided with a limit groove 62 matched with the limit assembly 4 .

[0042] Furthermore, the above-mentioned limiting assembly 4 includes a plug 41, an elastic member 42 and a limiting bead 43, and two ends of the above-mentioned elastic member 42 are respectively connected to the above-mentioned plug 41 and the above-mentioned limiting bead 43;

[0043] The assembly part 3 is provided with an installation slot, the plug 41 is embedded in one end of the installation slot and the outer wall is flush with or lower than the side wall of the assembly part 3, the elastic member 42 is passed through the installation slot, and the limiting bead 43 is embedded in the other end of the installation slot and partially protrudes from the side wall of the assembly part 3;

[0044] Furthermore, the limiting groove 62 is matched with the limiting bead 43 .

[0045] Furthermore, the inner diameter of the opening of one end of the installation slot close to the limiting bead 43 is slightly smaller than the outer diameter of the limiting bead 43, so that the limiting bead 43 can partially protrude to the outside of the installation slot port without falling out.

[0046] Furthermore, the elastic member 42 is a spring, and the limiting bead 43 is a steel ball.

[0047] Furthermore, the assembly part 3 is in a prism shape, and the assembly groove 61 is adapted to the prism-shaped assembly part 3 .

[0048] Furthermore, the axial direction of the connecting rod 1 is perpendicular to the axial direction of the operating rod 2 .

[0049] Furthermore, the connecting rod 1 is a hollow structure.

[0050] When in use, the assembly part 3 is inserted into the assembly groove 61. During the insertion process, the limit bead 43 is compressed and blocked in the installation groove. When reaching the position of the limit groove 62, the limit bead 43 pops out and fits into the limit groove 62 to achieve the limit fixation of the dynamic balancing screw plug 6, and connect the dynamic balancing screw plug 6 and the entire installation device together to prevent it from falling off. Then, the operating rod 2 is inserted through the tail end of the connecting rod 1, and the operating rod 2 is used to apply force to complete the installation of the dynamic balancing screw plug 6. After the installation work is completed, the entire installation device can be pulled out axially. Among them, the hollow structure of the connecting rod 1 can reduce the weight of the device and facilitate use.

[0051] Example 2

[0052] See also Figure 1 to Figure 4This embodiment provides a dynamic balancing screw installation device for a gas turbine rotor, which is based on Embodiment 1 and differs from Embodiment 1 in that:

[0053] The inner wall of the installation slot is provided with an internal thread, and the outer wall of the plug 41 is provided with an external thread matching the internal thread.

[0054] In this embodiment, when installing the above-mentioned limit component 4 in the above-mentioned assembly part 3, the above-mentioned limit bead 43 and the elastic member 42 are first installed into the above-mentioned installation groove, and finally the above-mentioned plug 41 is screwed into the above-mentioned installation groove by using a thread to complete the installation and fixation of the above-mentioned limit component 4.

[0055] Example 3

[0056] See also Figure 1 to Figure 4 This embodiment provides a dynamic balancing screw installation device for a gas turbine rotor, which is based on Embodiment 1 and differs from Embodiment 1 in that:

[0057] The connecting rod 1 is provided with two through hole groups, any one of the through hole groups includes two through holes 5 arranged opposite to each other, there are four through holes 5 in total, the axial angle between any two adjacent through holes 5 is 90°, and any one of the through holes 5 is arranged on the end side wall of the connecting rod 1 away from the assembly part 3; the operating rod 2 passes through the connecting rod 1 through any one of the through hole groups.

[0058] In this embodiment, when the operating space is limited, an appropriate through hole group can be arbitrarily selected to insert the operating rod 2 through the connecting rod 1 for easy operation.

[0059] Example 4

[0060] See also Figure 1 to Figure 4 This embodiment provides a dynamic balancing screw installation device for a gas turbine rotor, which is based on Embodiment 1 and differs from Embodiment 1 in that:

[0061] The connecting rod 1 is provided with a hollow portion 11 and a solid portion 12 . The solid portion 12 is close to and connected to the assembly part 3 , and the hollow portion 11 is located above the solid portion 12 .

[0062] In this embodiment, the hollow portion 11 and the solid portion 12 are provided to achieve a weight reduction effect while improving the stability of the device during use.

[0063] In summary, the embodiment of the present application provides a dynamic balancing screw installation device for a gas turbine rotor. When in use, the above-mentioned assembly part 3 is inserted into the above-mentioned assembly groove 61. During the insertion process, the above-mentioned limiting bead 43 is compressed and blocked in the above-mentioned installation through groove. When reaching the position of the above-mentioned limiting groove 62, the above-mentioned limiting bead 43 pops out and engages with the above-mentioned limiting groove 62 to achieve the limiting fixation of the above-mentioned dynamic balancing screw 6, and connects the above-mentioned dynamic balancing screw 6 and the entire installation device together to prevent falling off; then the above-mentioned operating rod 2 is inserted through the tail end of the above-mentioned connecting rod 1, and the operating rod 2 is used to apply force to complete the installation of the above-mentioned dynamic balancing screw 6; after the installation work is completed, the entire installation device can be pulled out axially.

[0064] The utility model can effectively solve the problems of difficult installation, time-consuming and labor-intensive, and complicated operation of the dynamic balancing screw plug; the utility model has a simple structure, is convenient and quick to use, can effectively improve work efficiency, and has extremely high promotion and application value.

[0065] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. A dynamic balancing screw plug installation device for a gas turbine rotor, characterized in that: It comprises a connecting rod and an operating rod, one end of the connecting rod is provided with an assembly part for connecting a dynamic balancing screw plug; the operating rod penetrates the side wall of one end of the connecting rod away from the assembly part; The assembly part is provided with a limit assembly, the top of the dynamic balancing screw plug is provided with an assembly groove matched with the assembly part, and the side wall of the assembly groove is provided with a limit groove matched with the limit assembly.

2. A dynamic balancing screw plug installation device for a gas turbine rotor according to claim 1, characterized in that: The limiting assembly includes a plug, an elastic member and a limiting bead, and two ends of the elastic member are respectively connected to the plug and the limiting bead; The assembly part is provided with an installation slot, the plug is embedded in one end of the installation slot and the outer wall is flush with or lower than the side wall of the assembly part, the elastic part is passed through the installation slot, and the limiting bead is embedded in the other end of the installation slot and partially protrudes from the side wall of the assembly part; The limiting groove is matched with the limiting bead.

3. A dynamic balancing screw plug installation device for a gas turbine rotor according to claim 2, characterized in that: The elastic member is a spring, and the limiting bead is a steel ball.

4. A dynamic balancing screw plug installation device for a gas turbine rotor according to claim 2, characterized in that: The inner wall of the installation slot is provided with an internal thread, and the outer wall of the plug is provided with an external thread matching the internal thread.

5. The dynamic balancing screw plug installation device for a gas turbine rotor according to claim 1, characterized in that: The assembly part is in the shape of a prism, and the assembly groove is adapted to the assembly part in the shape of a prism.

6. A dynamic balancing screw plug installation device for a gas turbine rotor according to claim 1, characterized in that: The axial direction of the connecting rod is perpendicular to the axial direction of the operating rod.

7. A dynamic balancing screw plug installation device for a gas turbine rotor according to claim 1, characterized in that: The connecting rod is provided with a plurality of through hole groups, any one of the through hole groups includes two through holes arranged opposite to each other, and any one of the through holes is arranged on the end side wall of the connecting rod away from the assembly part; the operating rod passes through the connecting rod through any one of the through hole groups.

8. A dynamic balancing screw plug installation device for a gas turbine rotor according to claim 7, characterized in that: The number of the through hole groups is 2, with a total of 4 through holes, and the axial angle between any two adjacent through holes is 90°.

9. The dynamic balancing screw plug installation device for a gas turbine rotor according to claim 1, characterized in that: The connecting rod is a hollow structure.

10. The dynamic balancing screw plug installation device for a gas turbine rotor according to claim 1, characterized in that: The connecting rod is provided with a hollow part and a solid part, the solid part is close to the assembly part and connected to the assembly part, and the hollow part is located above the solid part.

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