Compressor rotor dynamic balance connecting disc
The dynamic balancing connection disk for compressors stabilizes the semi-coupling with the rotor shaft and balancing machine, preventing dislodging and reducing maintenance costs by ensuring secure attachment and alignment, thus maintaining operational integrity.
Patent Information
- Application Number
- CN202421817466.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-07-30
AI Technical Summary
During the dynamic balance process of existing compressor rotors, the semi-coupling is easily thrown out, resulting in damage to the rotor and damage to the dynamic balancer, increasing maintenance costs and cycles.
A compressor rotor dynamic balance connecting plate is designed, which is connected to the rotor shaft head through the first projection, is fixed with the semi-coupling in combination with the connecting bolt, and is stably connected with the connecting plate by a universal joint to ensure the position of the semi-coupling in the dynamic balance process.
It enhances the safety of the dynamic balance detection and adjustment process, avoids the throwing of the semi-couple, reduces the maintenance cost, and ensures the compliance of the dynamic balance technical indicators.
Smart Images
Figure CN223104891U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of compressor manufacturing, and particularly to a dynamic balance connecting disk for a compressor rotor. Background Art
[0002] In a compressor, the rotor, as a high-speed rotating component, is a key component for outputting power externally and ensuring the normal operation of the compressor. It mainly consists of a main shaft, blades, impellers, sealing sheets, and a half coupling, etc. Among them, the half coupling is installed on the conical surface part of the rotor shaft head through a hydraulic tooling, and both ends of the rotor are supported by radial bearings and are installed and fixed within the compressor stator.
[0003] After the manufacturing or maintenance of the compressor rotor is completed, in order to meet the requirements of vibration indicators, dynamic balance detection and adjustment must be carried out. During this process, it is necessary to connect the rotor to the universal joint interface of the dynamic balancing machine through a connecting disk, and the dynamic balancing machine drives the rotor to rotate to complete the adjustment.
[0004] In the prior art, the dynamic balancing machine is usually connected to the connecting disk through the rotor half coupling. However, since the connecting disk is only connected to the bolt holes and positioning stop mouths on the half coupling, during the driving balance process, the half coupling is prone to being accidentally thrown out, resulting in serious consequences such as damage to the rotor and damage to the dynamic balancing machine, greatly increasing the maintenance cost and maintenance cycle of the rotor and the balancing machine. Utility Model Content
[0005] In view of the above problems, this application provides a dynamic balance connecting disk for a compressor rotor, which can avoid the half coupling being thrown out during the dynamic balance process and enhances the safety of the dynamic balance detection and adjustment process.
[0006] To achieve the purpose of this application, the following technical solutions are provided in this application:
[0007] This application provides a dynamic balance connecting disk for a compressor rotor, including: a connecting disk body, a first protrusion;
[0008] The first protrusion is located on the side of the connecting disk body connected to the compressor rotor and is used to connect to the rotor shaft head.
[0009] In a possible implementation, the first protrusion has a first external thread; the rotor shaft head has a first groove that mates with the first protrusion, and the inner wall of the first groove has a first internal thread; the first external thread meshes with the first internal thread.
[0010] In a possible implementation, the connecting disk body has a first through hole; the first through hole corresponds to the bolt holes on the end face of the half coupling.
[0011] In a possible implementation, there are multiple first through-holes, and the central axes are collinear with the central axes of the bolt holes on the end face of the half coupling.
[0012] In a possible implementation, the connection disk body further has connection bolts, and the connection bolts are inserted into the first through-holes and the bolt holes on the end face of the half coupling for fixedly connecting the connection disk body and the half coupling.
[0013] In a possible implementation, when the connection bolts are inserted into the first through-holes and the bolt holes on the end face of the half coupling, the tops of the connection bolts do not extend beyond the end face of the connection disk body.
[0014] In a possible implementation, the connection disk body further has second through-holes; the second through-holes correspond to the universal joints of the dynamic balancing device.
[0015] In a possible implementation, there are multiple second through-holes, which are arrayed in the inner circle of the connection disk body, and each second through-hole corresponds to a universal joint.
[0016] In a possible implementation, the central axes of the second through-holes are collinear with the central axes of the universal joints.
[0017] In a possible implementation, on the side where the connection disk body is connected to the half coupling, there is also a second groove; at the front end of the half coupling, there is a second protrusion; the second groove and the second protrusion are in mating connection.
[0018] Advantageous effects:
[0019] Through a dynamic balancing connection disk for a compressor rotor provided by the present application, during dynamic balancing, the first protrusion of the connection disk can be connected to the rotor shaft head, then the connection disk and the half coupling can be connected through connection bolts, and finally the universal joint of the balancing machine and the connection disk can be connected through bolts, realizing a reliable connection between the rotor and the dynamic balancing machine and fixing the relative positions of the half coupling and the rotor. Thus, it can avoid the situation that the half coupling is thrown out during dynamic balancing, damaging the rotor and the dynamic balancing machine, enhancing the safety of the dynamic balancing detection and adjustment process, reducing costs, ensuring that the technical indicators of dynamic balancing meet the requirements, and having significant economic benefits. Description of the Drawings
[0020] The drawings are used to provide a further understanding of the present application, and form a part of the specification. They are used together with the embodiments of the present application to explain the present application, and do not constitute a limitation to the present application;
[0021] Figure 1 It is a schematic structural diagram of a dynamic balancing connection disk for a compressor rotor provided by an embodiment of the present application;
[0022] Figure 2 This is a schematic end face structure diagram of a dynamic balance connecting disk for a compressor rotor provided by an embodiment of the present application;
[0023] Figure 3 This is a schematic side structure diagram of a dynamic balance connecting disk for a compressor rotor provided by an embodiment of the present application.
[0024] Reference numerals:
[0025] 1 - Connecting disk main body; 2 - Connecting bolt; 3 - Rotor shaft head; 4 - Half coupling; 5 - First through hole; 6 - Second through hole; 7 - First protrusion. Detailed implementation manners
[0026] To make the objectives, technical solutions, and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the accompanying drawings in the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.
[0027] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features; in the description of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.
[0028] Embodiment 1
[0029] Figures 1-3 A dynamic balance connecting disk for a compressor rotor provided by an embodiment of the present application includes: a connecting disk main body 1 and a first protrusion 7;
[0030] The first protrusion 7 is located on the side of the connecting disk main body 1 connected to the compressor rotor and is used to connect to the rotor shaft head 3.
[0031] Optionally, the first protrusion 7 and the rotor shaft head can be connected by fixed connection methods such as threaded connection and interference connection.
[0032] In a possible implementation manner, the first protrusion 7 has a first external thread; the rotor shaft head 3 has a first groove that mates with the first protrusion 7, and the inner wall of the first groove has a first internal thread; the first external thread meshes with the first internal thread.
[0033] In a possible implementation, the connection plate body 1 has a first through hole 5; the first through hole 5 corresponds to the bolt holes on the end face of the half coupling 4.
[0034] Optionally, the first through hole 5 is a countersunk through hole, and its inner wall has internal threads for mating with bolts.
[0035] In a possible implementation, there are multiple first through holes 5, and the central axes of the first through holes 5 are collinear with the central axes of the bolt holes on the end face of the half coupling 4.
[0036] Optionally, the number of the first through holes 5 is four, and the four first through holes 5 form a square and are all aligned with the bolt holes on the end face of the half coupling 4, and the central axes of the first through holes 5 are collinear with the central axes of the bolt holes on the end face of the half coupling 4.
[0037] In a possible implementation, the connection plate body 1 also has a connection bolt 2. The connection bolt 2 passes through the first through hole 5 and the bolt holes on the end face of the half coupling 4, and is used to fixedly connect the connection plate body 1 and the half coupling 4.
[0038] Optionally, the inner wall of the first through hole 5 has internal threads.
[0039] In a possible implementation, when the connection bolt 2 passes through the first through hole 5 and the bolt holes on the end face of the half coupling 4, the top of the connection bolt 2 does not protrude beyond the end face of the connection plate body 1. Adopting this implementation can enhance the connection stability and reduce the interference of protrusions.
[0040] In a possible implementation, the connection plate body 1 also has a second through hole 6; the second through hole 6 corresponds to the universal joint of the dynamic balancing device.
[0041] Optionally, the inner wall of the second through hole 6 has internal threads and is connected to the universal joint of the dynamic balancing device through bolts.
[0042] In a possible implementation, there are multiple second through holes 6, which are arrayed in the inner circle of the connection plate body 1, and each second through hole 6 corresponds to the universal joint. Adopting this implementation can strengthen the connection stability between the dynamic balancing device and the connection plate.
[0043] Optionally, the second through holes 6 are evenly distributed along the circumferential direction on the connection plate body 1.
[0044] In a possible implementation, the central axis of the second through hole 6 is collinear with the central axis of the universal joint. Adopting this implementation can enhance the connection stability after the bolt passes through the through hole.
[0045] In a possible implementation, the side of the connecting disk body 1 connected to the half coupling 4 further has a second groove, and the front end of the half coupling 4 has a second protrusion; the second groove and the second protrusion are connected in a matching manner.
[0046] Optionally, the second groove is a circular concave platform, the second protrusion is a circular convex platform, the diameter of the second groove is slightly larger than the diameter of the second protrusion, and the inner wall of the second groove is in close contact with the outer wall of the second protrusion during connection.
[0047] Working principle:
[0048] During installation, first screw the first protrusion 7 of the connecting disk body 1 into the first groove of the rotor shaft head 3 until the bottom surface of the second groove on the connecting disk body 1 is in close contact with the end face of the second protrusion of the half coupling 4, and the center line of the first through hole 5 coincides with the center line of the internal threaded hole on the half coupling 4. Each first through hole 5 is aligned with the bolt hole on the end face of the half coupling 4, and then screw the connecting bolt 2 into the bolt hole on the end face of the half coupling 4 through the first through hole 5 on the connecting disk 1. The universal joint of the dynamic balancing device is connected to the second through hole by bolts.
[0049] After installation, use the dynamic balancing device to drive the rotor to transmit torque for dynamic balancing detection and adjustment, which can ensure the safe and stable connection of the half coupling, the connecting disk, the rotor shaft head and the dynamic balancing device, prevent the half coupling from being thrown out during the dynamic balancing process and damaging the rotor and the dynamic balancing machine, enhance the safety of the dynamic balancing detection and adjustment process, reduce costs, and ensure that the technical indicators of the dynamic balancing meet the requirements.
[0050] In several embodiments provided in the present application, it should be understood that the disclosed system, modules and methods can be implemented in other ways. For example, the module embodiments described above are only illustrative. For example, the division of units is only a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the displayed or discussed mutual coupling or direct coupling or communication connection can be through some interfaces, indirect coupling or communication connection of modules or units, and can be in electrical, mechanical or other forms.
[0051] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting it. The present application is not limited to the exact structures described above and illustrated in the drawings. It cannot be determined that the specific implementation of the present application is only limited to these descriptions. For those of ordinary skill in the technical field to which the present application belongs, without departing from the concept of the present application, various changes and deformations made should be regarded as belonging to the protection scope of the present application.
Claims
1. A dynamic balance connecting disk for a compressor rotor, characterized in that, Including: A connecting disk body (1) and a first protrusion (7); The first protrusion (7) is located on the side of the connecting disk body (1) connected to the compressor rotor and is used for connecting with the rotor shaft head (3).
2. The dynamic balance connecting disc of the compressor rotor according to claim 1, characterized in that, The first protrusion (7) has a first external thread; the rotor shaft head (3) has a first groove that mates with the first protrusion (7), and the inner wall of the first groove has a first internal thread; the first external thread meshes with the first internal thread.
3. The compressor rotor dynamic balance connecting disc according to claim 1, characterized in that, The connecting disk body (1) has a first through hole (5); the first through hole (5) corresponds to the bolt holes on the end face of the half coupling (4).
4. The dynamic balance connecting disc of the compressor rotor according to claim 3, characterized in that, There are multiple first through holes (5), and the central axis is on the same straight line as the central axis of the bolt holes on the end face of the half coupling (4).
5. The dynamic balance connecting disc of the compressor rotor according to claim 3, wherein The connecting disk body (1) also has connecting bolts (2), and the connecting bolts (2) pass through the first through holes (5) and the bolt holes on the end face of the half coupling (4) to fixedly connect the connecting disk body (1) and the half coupling (4).
6. The dynamic balance connecting disc of the compressor rotor according to claim 5, wherein, When the connecting bolts (2) pass through the first through holes (5) and the bolt holes on the end face of the half coupling (4), the tops of the connecting bolts (2) do not exceed the end face of the connecting disk body (1).
7. The dynamic balance connecting disc of the compressor rotor according to claim 1, characterized in that, The connecting disk body (1) also has a second through hole (6); the second through hole (6) corresponds to the universal joint of the dynamic balancing device.
8. The dynamic balance connecting disk of the compressor rotor according to claim 7, characterized in that, There are multiple second through holes (6), which are arranged in an array in the inner circle of the connecting disk body (1), and each second through hole (6) corresponds to the universal joint.
9. The dynamic balance connecting disc of the compressor rotor according to claim 7, wherein, The central axis of the second through hole (6) is on the same straight line as the central axis of the universal joint.
10. The dynamic balance connecting disc of the compressor rotor according to claim 1, wherein On the side of the connecting disk body (1) connected to the half coupling (4), there is also a second groove, and the front end of the half coupling (4) has a second protrusion; the second groove and the second protrusion are connected in a matching manner.