Rotor structure and compressor
By designing a detachable rotor structure and using connecting parts of different lengths to connect them to the groove parts, the problem of high production cost of compressor rotors in the prior art is solved, and the versatility of the rotor structure and the saving of production costs are achieved.
Patent Information
- Application Number
- CN202421800023.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The production cost of existing compressor rotors is high, and the rotors of semi-closed and open compressors need to be processed separately, resulting in unnecessary waste in production and processing and assembly.
A detachable rotor structure is designed, including a cogging member and a connecting member, and is configured to form a rotor structure of different models to adapt to semi-closed and open compressors by machining the second rotor shaft on the connecting member of different lengths and connecting it with the cogging member.
It improves the versatility of the rotor structure, saves production costs, solves the problem of high production costs of compressor rotors, and simplifies the adaptability to different types of compressors.
Smart Images
Figure CN222924608U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of compressors, and particularly relates to a rotor structure and a compressor. Background Art
[0002] At present, most compressors on the market adopt an integrated rotor, and the rotor tooth groove section 1-1 and the output shaft 1-2 are integrally processed. Refer to Figure 1 .
[0003] However, for semi-hermetic compressors and open compressors with the same displacement, the only difference is the motor section 2-1 and the rotor output shaft 3-1. Refer to Figure 2 、 Figure 3 , and the rotors of semi-hermetic and open compressors need to be processed separately, resulting in some unnecessary waste in production and processing and assembly.
[0004] Therefore, the existing technology needs to be further developed. Content of the Utility Model
[0005] The purpose of the utility model is to overcome the above technical deficiencies and provide a rotor structure and a compressor to solve the technical problem of high production cost of the rotor of the compressor in the related technology.
[0006] To achieve the above technical purpose, the utility model adopts the following technical solutions: A rotor structure is provided, including: a tooth groove component, which includes a tooth groove part and a first rotating shaft connected to the tooth groove part; a connecting component, which includes a connecting part and a second rotating shaft connected to the connecting part; the connecting part is detachably connected to the tooth groove part; when the tooth groove part is connected to the connecting part, the second rotating shaft is located on the side of the tooth groove part away from the second rotating shaft.
[0007] Further, a first cutting surface is provided on the tooth groove part, and a first connecting hole recessed from the first cutting surface is provided on the first cutting surface; a second connecting hole penetrating through the connecting part is provided on the connecting part, so that the connecting part is connected to the tooth groove part by inserting fasteners into the first connecting hole and the second connecting hole.
[0008] Further, internal threads are provided in the first connecting hole, and external threads are provided on the fasteners, which are matched with the internal threads.
[0009] Further, there are multiple first connecting holes; the multiple first connecting holes are arranged at intervals, there are multiple second connecting holes, and the multiple second connecting holes are arranged in one-to-one correspondence with the multiple first connecting holes.
[0010] Further, a positioning groove recessed from the first cutting surface is provided on the first cutting surface; a second cutting surface for fitting with the first cutting surface is provided on the connecting part, and a positioning boss protruding from the second cutting surface is provided on the second cutting surface. When the connecting part is connected to the tooth groove part, the positioning boss is inserted into the positioning groove.
[0011] Further, there are a plurality of first connection holes, and the plurality of first connection holes are arranged around the positioning groove.
[0012] Further, a first pin hole recessed from the first section plane is provided on the first section plane, and a second pin hole penetrating through the connecting portion is provided on the connecting portion; the rotor structure further includes a positioning pin, and the positioning pin is inserted into the first pin hole and the second pin hole.
[0013] Further, the inner diameter of the first pin hole is greater than the inner diameter of the first connection hole; the inner diameter of the second pin hole is greater than the inner diameter of the second connection hole; and / or, the first pin hole is provided between two adjacent first connection holes, and the second pin hole is provided between two adjacent second connection holes.
[0014] Further, the connecting member is of a cylindrical structure, and the diameter of the connecting member is greater than the diameter of the second rotating shaft.
[0015] A compressor includes: a housing, in which a bearing is provided; the rotor structure as described above, and the first rotating shaft of the rotor structure is inserted into the bearing; a machine cover, which is covered on the housing, and the machine cover is detachably connected to the housing.
[0016] Beneficial effects:
[0017] The rotor structure of the present utility model includes a tooth groove component, and the tooth groove component includes a tooth groove portion and a first rotating shaft connected to the tooth groove portion; a connecting component, and the connecting component includes a connecting portion and a second rotating shaft connected to the connecting portion; the connecting portion is detachably connected to the tooth groove portion; when the tooth groove portion is connected to the connecting portion, the second rotating shaft is located on the side of the tooth groove portion away from the second rotating shaft. The rotor structure of the present utility model can form rotor structures of different models by processing the second rotating shafts on connecting components of different lengths and then connecting the connecting components of different lengths to the tooth groove component, so as to adapt to semi-hermetic compressors and open compressors, improve the versatility of the rotor structure, save production costs, and solve the technical problem of high production costs of the rotors of compressors in the related art. Description of the drawings
[0018] Figure 1 is a schematic structural diagram of a rotor structure of the prior art adopted in an embodiment of the present utility model;
[0019] Figure 2 is a schematic structural diagram of a semi-hermetic compressor of the prior art adopted in an embodiment of the present utility model;
[0020] Figure 3 is a schematic structural diagram of an open compressor of the prior art adopted in an embodiment of the present utility model;
[0021] Figure 4It is a schematic structural diagram of the tooth groove component of the rotor structure adopted in the embodiment of the present utility model;
[0022] Figure 5 It is the front view of the tooth groove component of the rotor structure adopted in the embodiment of the present utility model;
[0023] Figure 6 It is the side view of the tooth groove component of the rotor structure adopted in the embodiment of the present utility model;
[0024] Figure 7 It is a schematic structural diagram of the connecting component of the rotor structure adopted in the embodiment of the present utility model;
[0025] Figure 8 It is the front view of the connecting component of the rotor structure adopted in the embodiment of the present utility model;
[0026] Figure 9 It is the side view of the connecting component of the rotor structure adopted in the embodiment of the present utility model;
[0027] Figure 10 It is a schematic structural diagram of the compressor adopted in the embodiment of the present utility model.
[0028] Among them, the above-mentioned drawings include the following reference numerals:
[0029] 1. Tooth groove component; 11. Tooth groove part; 111. First section plane; 112. First connection hole; 113. Positioning groove; 114. First pin hole; 12. First rotating shaft; 2. Connecting component; 21. Connecting part; 211. Second connection hole; 212. Second section plane; 213. Positioning boss; 214. Second pin hole; 22. Second rotating shaft; 10. Machine shell; 20. Machine cover. Detailed implementation manners
[0030] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.
[0031] See Figures 1 to 10, according to an embodiment of the present utility model, a rotor structure is provided, including: a tooth groove component 1, the tooth groove component 1 includes a tooth groove part 11 and a first rotating shaft 12 connected to the tooth groove part 11; a connecting component 2, the connecting component 2 includes a connecting part 21 and a second rotating shaft 22 connected to the connecting part 21; the connecting part 21 is detachably connected to the tooth groove part 11; when the tooth groove part 11 is connected to the connecting part 21, the second rotating shaft 22 is located on the side of the tooth groove part 11 away from the second rotating shaft 22. With the above arrangement, the tooth groove component 1 and the connecting component 2 are detachably connected. By processing the second rotating shaft 22 on the connecting component 2 with different lengths and then connecting the connecting components 2 with different lengths to the tooth groove component 1, different models of rotor structures can be formed, so as to adapt to semi-hermetic compressors and open compressors, improve the versatility of the rotor structure, save production costs, and solve the technical problem of high production costs of the rotor of the compressor in the related art.
[0032] See Figures 4 to 9 , in the rotor structure of this embodiment, a first cutting surface 111 is provided on the tooth groove part 11, and a first connecting hole 112 recessed from the first cutting surface 111 is provided on the first cutting surface 111; a second connecting hole 211 penetrating through the connecting part 21 is provided on the connecting part 21, so as to connect the connecting part 21 to the tooth groove part 11 by passing a fastener through the first connecting hole 112 and the second connecting hole 211. In this way, the tooth groove component 1 and the connecting component 2 can be connected into one body by passing the fastener, so as to ensure the normal use of the rotor structure. When it is necessary to adapt to different types of compressors, the fastener is removed and a connecting component 2 with a different length is replaced.
[0033] In the rotor structure of this embodiment, internal threads are provided in the first connecting hole 112, and external threads matching the internal threads are provided on the fastener. In this way, the fastener is connected by threads, making the fastener easy to disassemble and not damaging the structures of each component.
[0034] In the rotor structure of this embodiment, see Figure 6 , Figure 9 , the first connecting holes 112 are multiple; the multiple first connecting holes 112 are arranged at intervals, the second connecting holes 211 are multiple, and the multiple second connecting holes 211 are arranged in one-to-one correspondence with the multiple first connecting holes 112. In this way, by providing multiple fasteners, the tooth groove component 1 and the connecting component 2 are connected more firmly, thus ensuring the normal operation of the rotor structure.
[0035] See Figures 4 to 9, in the rotor structure of this embodiment, a positioning groove 113 recessed from the first cutting surface 111 is provided on the first cutting surface 111; a second cutting surface 212 for fitting with the first cutting surface 111 is provided on the connecting portion 21, and a positioning boss 213 protruding from the second cutting surface 212 is provided on the second cutting surface 212. When the connecting portion 21 is connected to the tooth groove portion 11, the positioning boss 213 is inserted into the positioning groove 113. With the above arrangement, when installing the tooth groove component 1 and the connecting component 2, first insert the positioning boss 213 into the positioning groove 113, and then relatively rotate the tooth groove component 1 and the connecting component 2, so as to conveniently find the connection holes and achieve rapid assembly.
[0036] See Figure 6 , Figure 9 , in the rotor structure of this embodiment, there are multiple first connection holes 112, and the multiple first connection holes 112 are arranged around the positioning groove 113. In this way, during the use of the tooth groove component 1 and the connecting component 2, the force is applied to each position, thus ensuring the normal operation of the rotor structure.
[0037] In the rotor structure of this embodiment, see Figure 6 , Figure 9 , a first pin hole 114 recessed from the first cutting surface 111 is provided on the first cutting surface 111, and a second pin hole 214 penetrating the connecting portion 21 is provided on the connecting portion 21; the rotor structure further includes a positioning pin, and the positioning pin is inserted into the first pin hole 114 and the second pin hole 214. In this way, before inserting the fastener, first fix the relative positions of the tooth groove component 1 and the connecting component 2 by inserting the positioning pin, so that when installing the fastener, the phenomenon of misalignment or damage to the structure caused by excessive force will not occur.
[0038] See Figure 6 , Figure 9 , in the rotor structure of this embodiment, the inner diameter of the first pin hole 114 is larger than the inner diameter of the first connection hole 112; the inner diameter of the second pin hole 214 is larger than the inner diameter of the second connection hole 211; in this way, the connection between the tooth groove component 1 and the connecting component 2 is more stable, so that when installing the fastener, the phenomenon of the positioning pin breaking due to excessive force will not occur.
[0039] See Figure 6 , Figure 9 , the first pin hole 114 is arranged between two adjacent first connection holes 112, and the second pin hole 214 is arranged between two adjacent second connection holes 211. In this way, the number of positioning pins can be reduced, the installation space can be saved, and the connection between the tooth groove component 1 and the connecting component 2 can be ensured to be tight.
[0040] Preferably, there are two first pin holes 114 and two second pin holes 214 in this embodiment, and correspondingly, there are also two positioning pins.
[0041] In the rotor structure of this embodiment, the connecting component 2 is of a cylindrical structure, and the diameter of the connecting component 2 is larger than that of the second rotating shaft 22. In this way, there is enough space on the connecting component 2 to set up connection structures such as connection holes, so that the tooth groove component 1 and the connecting component 2 are tightly connected.
[0042] The compressor of this embodiment includes: a housing 10, with bearings provided inside the housing 10; the rotor structure as described above, and the first rotating shaft 12 of the rotor structure is arranged inside the bearings; a machine cover 20, covering the housing 10, and the machine cover 20 is detachably connected to the housing 10.
[0043] Specifically, the difference between an open compressor and a semi-hermetic compressor lies in the installation position of the motor. For compressors with the same displacement, except for the motor section and the rotor output shaft part which are different, the remaining components can be universal. Figure 3 Shown is a schematic diagram of the internal structure of a current open compressor. The output shaft of the male rotor 2-2 passes through the mechanical seal and is connected to the output shaft of the external motor through a coupling to transmit torque. Figure 2 Shown is a schematic diagram of the internal structure of a current semi-hermetic compressor. The motor is directly installed on the rotor output shaft to directly transmit torque.
[0044] Currently, the schematic diagram of the rotor structure in the market is as Figure 1 shown. The rotor is composed of an output shaft, a tooth groove section, and a first rotating shaft 12, and is integrally processed. The detachable rotor structure of this embodiment is as Figures 4 to 10 shown. The rotor of the existing solution is split into two parts: a tooth groove component 1 and a connecting component 2. The connecting component 2 includes a tooth groove part 11 and a first rotating shaft 12. The tooth groove component 1 and the connecting component 2 are processed separately. A positioning groove 113, a first pin hole 114, and a first connecting hole 112 are machined on the end face of the tooth groove component 1, and a positioning boss 213, a second pin hole 214, and a second connecting hole 211 are machined on the end face of the connecting part 21. The tooth groove component 1 and the connecting component 2 are fastened by the positioning boss 213, the positioning groove 113, pins, and screws. Using the detachable rotor structure of this embodiment, modular installation and quick switching for open and semi-hermetic compressors can be achieved. When used as a semi-hermetic compressor, only the long-axis tooth groove component 1 needs to be installed for motor installation. When used as an open compressor, only the shorter tooth groove component 1 needs to be installed, and a coupling is installed after passing through the mechanical seal. When the compressor type needs to be switched, only the compressor motor section and the tooth groove component 1 need to be replaced, without disassembling the compressor and replacing the entire rotor structure. This brings great convenience to production and assembly. At the same time, for the rotor structures of compressors with the same displacement, there is no need to open multiple molds, and only tooth groove components 1 with different lengths need to be processed for replacement, saving a large amount of production and processing costs.
[0045] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of the present application are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0046] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and will not be elaborated here.
[0047] The serial numbers of the above embodiments of the present application are only for description and do not represent the advantages or disadvantages of the embodiments.
[0048] In the above embodiments of the present application, the descriptions of the respective embodiments have their own emphases. For the parts not elaborated in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.
[0049] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.
Claims
1. A rotor structure, characterized in that: include: A tooth groove component (1), the tooth groove component (1) comprising a tooth groove portion (11) and a first rotating shaft (12) connected to the tooth groove portion (11); A connecting component (2), the connecting component (2) comprising a connecting portion (21) and a second rotating shaft (22) connected to the connecting portion (21); the connecting portion (21) is detachably connected to the tooth groove portion (11); when the tooth groove portion (11) is connected to the connecting portion (21), the second rotating shaft (22) is located on a side of the tooth groove portion (11) away from the second rotating shaft (22).
2. The rotor structure according to claim 1, characterized in that: The tooth groove portion (11) is provided with a first cut surface (111), and the first cut surface (111) is provided with a first connecting hole (112) recessed in the first cut surface (111); the connecting portion (21) is provided with a second connecting hole (211) penetrating the connecting portion (21), so that the connecting portion (21) is connected to the tooth groove portion (11) by inserting a fastener into the first connecting hole (112) and the second connecting hole (211).
3. The rotor structure according to claim 2, characterized in that: The first connecting hole (112) is provided with an internal thread, and the fastener is provided with an external thread matching the internal thread.
4. The rotor structure according to claim 2, characterized in that: There are a plurality of first connection holes (112); the plurality of first connection holes (112) are arranged at intervals; there are a plurality of second connection holes (211), and the plurality of second connection holes (211) are arranged in a one-to-one correspondence with the plurality of first connection holes (112).
5. The rotor structure according to claim 2, characterized in that: The first cut surface (111) is provided with a positioning groove (113) recessed in the first cut surface (111); the connecting portion (21) is provided with a second cut surface (212) for being fitted with the first cut surface (111); the second cut surface (212) is provided with a positioning boss (213) protruding from the second cut surface (212); when the connecting portion (21) is connected to the tooth groove portion (11), the positioning boss (213) is inserted into the positioning groove (113).
6. The rotor structure according to claim 5, characterized in that: There are a plurality of the first connection holes (112), and the plurality of the first connection holes (112) are arranged around the positioning groove (113).
7. The rotor structure according to claim 2, characterized in that: The first section (111) is provided with a first pin hole (114) recessed in the first section (111), and the connecting portion (21) is provided with a second pin hole (214) penetrating the connecting portion (21); the rotor structure also includes a positioning pin, which is inserted into the first pin hole (114) and the second pin hole (214).
8. The rotor structure according to claim 7, characterized in that: The inner diameter of the first pin hole (114) is larger than the inner diameter of the first connecting hole (112); the inner diameter of the second pin hole (214) is larger than the inner diameter of the second connecting hole (211); and / or, The first pin hole (114) is arranged between two adjacent first connection holes (112), and the second pin hole (214) is arranged between two adjacent second connection holes (211).
9. The rotor structure according to claim 1, characterized in that: The connecting component (2) is a cylindrical structure, and the diameter of the connecting component (2) is greater than the diameter of the second rotating shaft (22).
10. A compressor, characterized in that: include: A housing (10), wherein a bearing is arranged in the housing (10); The rotor structure according to any one of claims 1 to 9, wherein the first rotating shaft (12) of the rotor structure is arranged inside the bearing; A machine cover (20) is arranged on the machine casing (10), and the machine cover (20) is detachably connected to the machine casing (10).