Rotary compressor and supporting structure mounting tool

Abstract

The utility model discloses a rotary compressor and a supporting structure mounting tool, and relates to the technical field of compressors, and the rotary compressor comprises a shell, a crankshaft, a first supporting structure and a second supporting structure; the second supporting structure comprises an assembling support, a bearing device and an adjusting device. The assembling support is provided with a first adjusting hole and an assembling hole. A second adjusting hole is formed in the bearing device, and the bearing device is installed in the assembling hole and used for supporting the second end of the crankshaft; the adjusting device is installed in the first adjusting hole and the second adjusting hole and used for adjusting the position of the bearing device relative to the crankshaft and fixing the bearing device in the assembling support. According to the rotary compressor, the deformation resistance of the crankshaft is enhanced through the double-supporting structure, meanwhile, the position of the bearing device is adjusted through the adjusting device so as to adapt to the torque requirement of the crankshaft, and the overall performance and reliability are further improved.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and in particular to a rotary compressor and a supporting structure installation tool. Background Art

[0002] A compressor is a mechanical device that raises low-pressure gas to high-pressure gas. A rotary compressor is a type of compressor. The working principle of a rotary compressor is to use a motor to drive the crankshaft to rotate, thereby driving the piston in the pump body to move, thereby achieving gas compression.

[0003] In the structure of the rotary compressor, the crankshaft is supported on the pump body by bearings. In practice, the inventors found that the prior art has the following defects: because the crankshaft adopts a single-constrained cantilever structure, when the operating frequency of the compressor is increased, the rotational inertia of the rotor in the motor will increase, which will cause the crankshaft deflection to increase, and then easily cause problems such as excessive crankshaft deformation and bearing wear. Utility Model Content

[0004] The purpose of the present application is to provide a rotary compressor, which enhances the anti-deformation capability of the crankshaft through a double support structure, and uses an adjustment device to adjust the position of the bearing device to adapt to the crankshaft torque requirement, thereby further improving the overall performance and reliability. Another purpose of the present application is to provide a support structure installation tool.

[0005] To achieve the above object, the present application provides a rotary compressor, comprising a housing, a crankshaft and a first supporting structure located in the housing, wherein a first end of the crankshaft is supported by the first supporting structure, and the rotary compressor further comprises a second supporting structure, wherein the second supporting structure is installed in the housing, and a second end of the crankshaft is supported by the second supporting structure; the second supporting structure comprises:

[0006] An assembly bracket, wherein the assembly bracket is provided with a first adjustment hole and an assembly hole;

[0007] A bearing device, wherein the bearing device is provided with a second adjustment hole, the bearing device is mounted in the assembly hole, and the bearing device is used to support the second end of the crankshaft;

[0008] An adjusting device is installed in the first adjusting hole and the second adjusting hole, and is used to adjust the position of the bearing device relative to the crankshaft and fix the bearing device in the assembly bracket.

[0009] In some embodiments, the outer periphery of the assembly bracket is fixed to the inner wall of the housing; wherein:

[0010] The assembly bracket is interference fit with the housing; and / or,

[0011] The assembly bracket is fixed to the shell by welding.

[0012] In some embodiments, the bearing device includes a rolling bearing seat and a rolling bearing, the rolling bearing is installed on the rolling bearing seat, the rolling bearing seat is provided with the second adjustment hole, and the rolling bearing seat is installed on the assembly hole.

[0013] In some embodiments, the bearing device includes a sliding bearing seat and a sliding bearing, the sliding bearing is installed on the sliding bearing seat, the sliding bearing seat is provided with the second adjustment hole, and the sliding bearing seat is installed on the assembly hole.

[0014] In some embodiments, the bearing device includes a bearing body and a support platform connected to the outer periphery of the bearing body, the bearing body is installed in the assembly hole, the support platform is provided with the second adjustment hole, and the support platform is used to limit the one-way assembly of the bearing device and the assembly bracket.

[0015] In some embodiments, the assembly bracket is further provided with a positioning hole, and the positioning hole is used for positioning with the support structure installation tool; and / or,

[0016] The assembly bracket is also provided with a vent hole.

[0017] The present application also provides a support structure installation tool, which is used to press the second support structure into the shell to obtain the above-mentioned rotary compressor, and the support structure installation tool includes:

[0018] A connecting device, the connecting device is used to connect the pushing device;

[0019] A positioning device, wherein a first side of the positioning device is positioned and assembled with the connecting device, and a second side of the positioning device is positioned and assembled with an assembly bracket of the second supporting structure, so as to press the assembly bracket into the shell under the pressure of a pushing device.

[0020] In some embodiments, the positioning device has a positioning end surface and a positioning peripheral surface, the positioning end surface is used to position with the end wall of the shell, and the positioning peripheral surface is used to position with the inner wall of the shell.

[0021] In some embodiments, the connecting device includes a press interface and a pressing plate, wherein the press interface is used to connect the pushing device, the pressing plate is fixed to the press interface, and the pressing plate is used to position and assemble with the positioning device and apply pressure to the positioning device; and / or,

[0022] The positioning device includes a first positioning plate and a second positioning plate, the first positioning plate is positioned and assembled with the connecting device, the first positioning plate has a positioning end surface for positioning with the end wall of the shell, the second positioning plate is assembled on the first positioning plate, the second positioning plate has a positioning circumferential surface for positioning with the inner wall of the shell, and the second positioning plate is used to position and assemble with the assembly bracket and apply pressure to the assembly bracket.

[0023] In some embodiments, the positioning device is provided with a positioning pin, and the positioning pin is used to position with the assembly bracket; and / or,

[0024] The positioning device is provided with a magnetic member, and the magnetic member is used to make the assembly bracket adsorbed on the positioning device.

[0025] Compared with the above-mentioned background technology, the rotary compressor provided in the present application mainly includes a shell, a crankshaft and a first supporting structure located in the shell, the first end of the crankshaft is supported on the first supporting structure, and the rotary compressor also includes a second supporting structure, the second supporting structure is installed in the shell, and the second end of the crankshaft is supported on the second supporting structure; the second supporting structure includes an assembly bracket, a bearing device and an adjusting device, the assembly bracket is provided with a first adjusting hole and an assembly hole; the bearing device is provided with a second adjusting hole, the bearing device is installed in the assembly hole, and the bearing device is used to support the second end of the crankshaft; the adjusting device is installed in the first adjusting hole and the second adjusting hole, and the adjusting device is used to adjust the position of the bearing device relative to the crankshaft and fix the bearing device in the assembly bracket.

[0026] During the assembly process of the rotary compressor, the shell, the first supporting structure and the crankshaft are first assembled into one. Specifically, the first supporting structure is fixed in the shell, and the first end of the crankshaft is supported by the first supporting structure; then the second supporting structure is installed in the shell, and the second supporting structure is assembled into one with the shell, the first supporting structure and the crankshaft. Specifically, the bearing device is first pre-tightened on the assembly bracket using the adjusting device. Please note that the adjusting device at this time does not completely lock the bearing device on the assembly bracket. Then the assembly bracket is pressed into the shell, so that the assembly bracket and the shell are assembled in place, and the bearing device in the assembly bracket is assembled in place with the second end of the crankshaft. At this time, the second end of the crankshaft is supported by the bearing device; the upper mounting of the second supporting structure is completed After the above-mentioned preliminary installation process, the adjustment device installed in the first adjustment hole of the assembly bracket and the second adjustment hole of the bearing device can be adjusted as needed, and then the position of the bearing device relative to the crankshaft can be debugged. After the bearing device is properly debugged, the bearing device is fixed in the assembly bracket; for example, after completing the above-mentioned preliminary installation process of the second support structure, the crankshaft is rotated and the torque of the crankshaft is measured using a test tool, and the adjustment device is adjusted according to the torque measurement result of the crankshaft, and then the position of the bearing device relative to the crankshaft is debugged, which is equivalent to changing the supported position of the second end of the crankshaft. By repeatedly debugging the second support structure until the torque measurement result of the crankshaft meets the requirements, the adjustment device can be used to completely lock the bearing device on the assembly bracket.

[0027] Combined with the above structure and process description, it can be seen that the rotary compressor has at least the following beneficial effects: the rotary compressor enhances the anti-deformation ability of the crankshaft through the double support structure, and at the same time uses the adjustment device to adjust the position of the bearing device to adapt to the crankshaft torque requirements, thereby further improving the overall performance and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0029] Figure 1 A schematic diagram of the structure of a rotary compressor provided in an embodiment of the present application;

[0030] Figure 2 A supporting effect diagram of a crankshaft provided in an embodiment of the present application;

[0031] Figure 3 A schematic diagram of the structure of a second supporting structure provided in an embodiment of the present application;

[0032] Figure 4 A schematic diagram of a disassembled second support structure provided in an embodiment of the present application;

[0033] Figure 5 A schematic diagram of the structure of the assembly bracket provided in the embodiment of the present application;

[0034] Figure 6 A schematic diagram of the structure of a bearing device provided in an embodiment of the present application;

[0035] Figure 7 A schematic structural diagram of a second supporting structure provided in another embodiment of the present application;

[0036] Figure 8 A schematic diagram of a disassembled second support structure provided in another embodiment of the present application;

[0037] Fig. 9 A schematic diagram of the structure of the support structure installation tool provided in the embodiment of the present application;

[0038] Fig.10 A schematic structural diagram of the support structure installation tooling and the second support structure provided in an embodiment of the present application.

[0039] in:

[0040] Rotary compressor 100,

[0041] Shell 1, inner wall 11, end wall 12,

[0042] Crankshaft 2,

[0043] The first supporting structure 3,

[0044] Second support structure 4,

[0045] Assembly bracket 41, first adjustment hole 4101, assembly hole 4102, positioning hole 4103, ventilation hole 4104,

[0046] bearing device 42, second adjustment hole 4201, bearing body 421, rolling bearing seat 42111, rolling bearing 42112, sliding bearing seat 42121, sliding bearing 42122, support platform 422,

[0047] Adjustment device 43,

[0048] Pump body 5,

[0049] Support structure installation tooling 200,

[0050] Connecting device 6, press interface 61, pressing plate 62,

[0051] Positioning device 7 , positioning end surface 701 , positioning peripheral surface 702 , first positioning plate 71 , second positioning plate 72 , positioning pin 73 , magnetic member 74 , stepped guide column 75 , guide sleeve 76 , spring 77 . DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. 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 this application.

[0053] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0054] First of all, it is necessary to explain the composition and function of the vane compressor. The main components of the vane compressor include the body (cylinder), rotor, vane, crank-connecting rod mechanism, drive device, etc., and each component has its specific function. The body (cylinder) is the main part of the compressor, usually made of cast iron or steel. It provides a closed space so that the gas can be compressed. The rotor is eccentrically arranged in the cylinder, and a number of longitudinal grooves are opened on it. These grooves are equipped with vanes that can slide freely in the radial direction. Due to the eccentric configuration of the rotor, a crescent-shaped space is formed between the inner wall of the cylinder and the outer surface of the rotor. The vane is the core component of the vane compressor, and its function is to reciprocate on the crankshaft to compress the gas. The vane is usually made of high-quality alloy materials with high hardness and wear resistance. The crank-connecting rod mechanism converts the rotational motion into reciprocating motion and drives the vane to compress the gas. The crankshaft connects the vane through a connecting rod to form a motion transmission chain. This mechanism is reasonably designed and can effectively convert rotational motion into reciprocating motion. The driving device includes an electric motor, which provides power to rotate the rotor in the cylinder, thereby driving the sliding vane to compress the gas.

[0055] During the working process of the vane compressor, as the rotor rotates continuously, the volume of the unit cell changes repeatedly according to a certain rule. When the volume of the unit cell gradually increases, gas begins to be sucked in; when the volume of the unit cell begins to decrease, the gas is compressed inside it; when the volume of the unit cell is connected to the exhaust port, the compression process ends and exhaust begins.

[0056] In general, the vane compressor has the characteristics of simple structure, high reliability and easy maintenance. Its reasonable structural design and the selection of high-quality materials ensure the working efficiency and service life of the compressor. This compressor is widely used in air conditioning, refrigeration equipment, automobile manufacturing and other fields, providing the necessary gas compression and circulation for our life and industrial production.

[0057] Please refer to Figure 1 and Figure 2 ,in, Figure 1 This is a schematic diagram of the structure of a rotary compressor provided in an embodiment of the present application. Figure 2 A diagram showing the support effect of the crankshaft provided in an embodiment of the present application.

[0058] In a first specific embodiment, Figure 1 and Figure 2 As shown, the rotary compressor 100 provided in the embodiment of the present application mainly includes a shell 1 and a crankshaft 2 and a first support structure 3 located in the shell 1, and the first end of the crankshaft 2 is supported on the first support structure 3. The rotary compressor 100 also includes a second support structure 4, which is installed in the shell 1, and the second end of the crankshaft 2 is supported on the second support structure 4.

[0059] In this embodiment, the core feature of the rotary compressor 100 of the present technical solution is that it adopts a double support structure to enhance the stability of the crankshaft 2.

[0060] Specifically, the first end of the crankshaft 2 is supported by the first support structure 3, and the second end is supported by the second support structure 4, and both support structures are installed inside the housing 1. Through this double support design, the compressor 100 can effectively reduce the deflection and deformation of the crankshaft 2 caused by the increase in rotational inertia under high-frequency operation conditions, thereby improving the operating efficiency and reliability of the compressor. In addition, the double support structure also helps to disperse the force generated by gas compression, protect the crankshaft and the support structure from damage, and extend the service life of the compressor.

[0061] In addition to the above description of this embodiment, the main mechanism of the rotary compressor 100 includes a motor and a pump body built into the housing 1. The motor includes a stator and a rotor, and the rotor is located at the periphery of the crankshaft 2, and the crankshaft 2 is driven to rotate by the motor. The pump body includes a cylinder and a vane. The crankshaft 2 is a key component connecting the motor and the pump body, and is responsible for transmitting the rotational power of the motor to the pump body, driving the piston or the vane to compress the gas.

[0062] In some cases, the first support structure 3 is disposed on the pump body. Optionally, the first support structure 3 is a bearing group disposed on the pump body, and the bearing group includes but is not limited to a main bearing and / or a secondary bearing.

[0063] In this embodiment, the second support structure 4 is separated from the first support structure 3, the first support structure 3 is located near the pump body, and the second support structure 4 is located far away from the pump body. On this basis, the motor is located between the first support structure 3 and the second support structure 4.

[0064] In the design of the rotary compressor 100, the layout of placing the motor between the first support structure 3 and the second support structure 4 achieves two main advantages: First, compared with the original form in which the motor is located at the end of the crankshaft 2, this solution extends the crankshaft 2 and allows the design position of the motor to be moved toward the center of the crankshaft 2. This centralized motor layout helps to reduce the deformation and vibration of the crankshaft caused by the rotational inertia of the motor, thereby improving the operating accuracy and reliability of the compressor. Secondly, the spatial layout of the motor has been optimized. This layout not only improves the compactness of the structure, but also improves the balance of weight and torque, making the overall design of the compressor more efficient and stable. Through this innovative motor position and spatial layout design, the overall performance of the compressor 100 has been significantly improved.

[0065] Please continue to refer to Figure 1 and Figure 2 , and refer to Figure 3 and Figure 4 , Figure 3 A schematic diagram of the structure of the second support structure provided in an embodiment of the present application, Figure 4 A schematic diagram of the disassembly of the second support structure provided in an embodiment of the present application.

[0066] like Figure 3 As shown, the second supporting structure 4 mainly includes an assembly bracket 41, a bearing device 42 and an adjusting device 43. The assembly bracket 41 is provided with a first adjusting hole 4101 and an assembly hole 4102; the bearing device 42 is provided with a second adjusting hole 4201, the bearing device 42 is installed in the assembly hole 4102, and the bearing device 42 is used to support the second end of the crankshaft 2; the adjusting device 43 is installed in the first adjusting hole 4101 and the second adjusting hole 4201, and the adjusting device 43 is used to adjust the position of the bearing device 42 relative to the crankshaft 2 and to fix the bearing device 42 in the assembly bracket 41.

[0067] It should be noted that the second support structure 4 of the rotary compressor 100 is specially designed in this embodiment so that it can provide basic support for the second end of the crankshaft 2 and also has the function of precise adjustment and performance optimization.

[0068] In the construction of the second support structure 4, the assembly bracket 41 is designed with a dedicated first adjustment hole 4101 and an assembly hole 4102 for accurately positioning and fixing the bearing device 42. The bearing device 42, which has a second adjustment hole 4201 and is installed in the assembly hole 4102, is directly responsible for supporting the second end of the crankshaft 2. In addition, the adjustment device 43 is installed between the first adjustment hole 4101 and the second adjustment hole 4201. It can not only adjust the position of the bearing device 42 relative to the crankshaft 2 to adapt to different torque requirements, but also fix the bearing device 42 in the assembly bracket 41 to the optimal position, ensuring the stability of the entire support structure and the efficient operation of the compressor. This design significantly improves the assembly flexibility and operational reliability of the rotary compressor.

[0069] During the assembly process of the rotary compressor 100, the shell 1, the first supporting structure 3 and the crankshaft 2 are first assembled into one. Specifically, the first supporting structure 3 is fixed in the shell 1, and the first end of the crankshaft 2 is supported on the first supporting structure 3; then the second supporting structure 4 is installed into the shell 1, and the second supporting structure 4 is assembled into one with the shell 1, the first supporting structure 3 and the crankshaft 2. Specifically, the bearing device 42 is pre-tightened on the assembly bracket 41 using the adjusting device 43. Please note that the adjusting device 43 at this time does not completely lock the bearing device 42 on the assembly bracket 41. Then the assembly bracket 41 is pressed into the shell 1, so that the assembly bracket 41 and the shell 1 are assembled in place, and the bearing device 42 in the assembly bracket 41 is assembled in place with the second end of the crankshaft 2. At this time, the second end of the crankshaft 2 is supported by the bearing device 42; the second supporting structure 4 is completed. After the above-mentioned preliminary installation process, the adjustment device 43 installed in the first adjustment hole 4101 of the assembly bracket 41 and the second adjustment hole 4201 of the bearing device 42 can be adjusted as needed, and then the position of the bearing device 42 relative to the crankshaft 2 can be debugged. After the bearing device 42 is properly debugged, the bearing device 42 is fixed in the assembly bracket 41; for example, after completing the above-mentioned preliminary installation process of the second support structure 4, a test tool is used to rotate the crankshaft 2 and the torque of the crankshaft 2 is measured. The adjustment device 43 is adjusted according to the torque measurement result of the crankshaft 2, and then the position of the bearing device 42 relative to the crankshaft 2 is debugged, which is equivalent to changing the supported position of the second end of the crankshaft 2. By repeatedly debugging the second support structure 4 until the torque measurement result of the crankshaft 2 meets the requirements, the adjustment device 43 can be used to completely lock the bearing device 42 on the assembly bracket 41.

[0070] Combined with the above structure and process description, it can be seen that the rotary compressor 100 has at least the following beneficial effects: the rotary compressor 100 enhances the anti-deformation ability of the crankshaft 2 through the double support structure, and at the same time uses the adjustment device 43 to adjust the position of the bearing device 42 to adapt to the torque requirements of the crankshaft 2, thereby further improving the overall performance and reliability.

[0071] The present application relates to the field of compressors, in some cases, particularly rotary compressors, and air conditioning, refrigeration and other systems using the compressors.

[0072] In recent years, with the continuous improvement of DC variable frequency rotary compressor technology, rotary compressors have gradually entered the fields of refrigeration and freezing, automotive air conditioning, etc. from the fields of household air conditioners and dehumidifiers, and have been technically compared with existing compressors, putting forward higher requirements for the miniaturization and lightweight of compressors. At present, the refrigeration field mostly uses high-frequency compressors with higher refrigeration capacity.

[0073] The core problem of the existing rotary compressor frequency increase is as follows: after the compressor operating frequency is increased, the rotor rotational inertia increases, resulting in an increase in crankshaft deflection, which can easily cause excessive deformation of the crankshaft, resulting in deterioration of the oil film of the main and auxiliary bearings and the eccentric part of the crankshaft and causing wear. To address this problem, this application adopts a double support structure and also improves the process manufacturability to provide a new structure and process that is more suitable for assembly and meets the needs of the production line.

[0074] In some cases, the housing 1 has a motor cavity and a pump body cavity inside, the motor cavity is installed with a motor, the pump body 5 is installed in the pump body cavity, the first end of the crankshaft 2 is located in the pump body cavity and supported by the first support structure 3, and the second end of the crankshaft 2 is located in the motor cavity and supported by the second support structure 4.

[0075] In this embodiment, the second supporting structure 4 is far away from the first supporting structure 3 . If the pump body 5 is taken as a reference object, the first supporting structure 3 is located close to the pump body 5 , and the second supporting structure 4 is located far away from the pump body 5 .

[0076] On this basis, the motor is located between the first supporting structure 3 and the second supporting structure 4 .

[0077] In the design of the compressor 100, the layout of placing the motor between the first support structure 3 and the second support structure 4 achieves two main advantages: First, compared with the original form in which the motor is located at the end of the crankshaft 2, this solution extends the crankshaft 2 and allows the design position of the motor to be moved closer to the center of the crankshaft 2. This centralized motor layout helps to reduce the deformation and vibration of the crankshaft caused by the rotational inertia of the motor, thereby improving the operating accuracy and reliability of the compressor. Secondly, the spatial layout of the motor has been optimized. This layout not only improves the compactness of the structure, but also improves the balance of weight and torque, making the overall design of the compressor more efficient and stable. Through this innovative motor position and spatial layout design, the overall performance of the compressor 100 has been significantly improved.

[0078] As an option, for the process selection of the second support structure 4, on the one hand, a split form of the assembly bracket 41 and the bearing device 42 and an adjustable fixed form of connecting the assembly bracket 41 and the bearing device 42 with an adjustment device 43 are selected; on the other hand, sheet metal parts are used as much as possible for the second support structure 4. The advantage of this is that the structure is simpler and the sheet metal forming cost is low. On the other hand, the assembly bracket 41 and the bearing device 42 can be assembled and fixed off-line in advance through the adjustment device 43, thereby improving production efficiency.

[0079] In some embodiments, the outer periphery of the assembly bracket 41 is fixed to the inner wall of the shell 1, wherein: the fixing method of the assembly bracket 41 and the shell 1 includes but is not limited to interference fit and / or welding fixation, and the welding method can be laser welding, three-spot welding, etc.

[0080] Please continue to refer to Figure 3 In some embodiments, the bearing device 42 includes a bearing body 421 and a support platform 422 connected to the outer periphery of the bearing body 421. The bearing body 421 is installed in the assembly hole 4102. The support platform 422 is provided with a second adjustment hole 4201. The support platform 422 is used to limit the one-way assembly of the bearing device 42 and the assembly bracket 41.

[0081] In this embodiment, the bearing body 421 is installed in the assembly hole 4102 of the assembly bracket 41, and directly bears the task of supporting the second end of the crankshaft 2. The support platform 422 is provided with a second adjustment hole 4201, which is used in conjunction with the adjustment device 43 to accurately adjust the position of the bearing device 42 relative to the crankshaft 2 to ensure the best assembly and operating conditions. In addition, the design of the support platform 422 also cleverly realizes the one-way assembly restriction between the bearing device 42 and the assembly bracket 41, which not only avoids the wrong assembly direction, but also enhances the stability and reliability of the overall structure. Figure 3 For example, compare Figure 4 It can be seen that the bearing device 42 is assembled unidirectionally from left to right from the left side of the assembly bracket 41. Through this design, the second support structure 4 not only provides a stable support function, but also can make necessary adjustments according to the actual situation during operation, thereby optimizing the performance of the compressor.

[0082] Please continue to refer to Figure 3 and Figure 4 , and refer to Figure 5 and Figure 6 , Figure 5 A schematic diagram of the structure of the assembly bracket provided in the embodiment of the present application, Figure 6 A schematic structural diagram of a bearing device provided in an embodiment of the present application.

[0083] In some embodiments, the assembly bracket 41 is further provided with a positioning hole 4103 , and the positioning hole 4103 is used for positioning with the support structure installation tool 200 .

[0084] In this embodiment, in addition to the assembly hole 4102 and the first adjustment hole 4101, the assembly bracket 41 is also specially designed with a positioning hole 4103. The main function of the positioning hole 4103 is to accurately position the support structure installation tool 200. The positioning hole 4103 can ensure the accurate position of the assembly bracket 41 during the installation process, thereby providing an accurate reference benchmark for the installation of the bearing device 42. This design allows the assembly bracket 41 to be quickly and accurately positioned using the support structure installation tool 200 during the assembly process, thereby improving assembly efficiency and reducing human errors. The use of the positioning hole 4103 enhances the installation accuracy and reliability of the entire second support structure 4, helps to ensure that the bearing device 42 can be correctly installed in the desired position, thereby improving the performance and life of the entire compressor 100.

[0085] In some embodiments, the assembly bracket 41 is further provided with a vent hole 4104 .

[0086] In this embodiment, in addition to the hole design for assembly, adjustment and positioning, the assembly bracket 41 is also specially provided with a vent hole 4104. The vent hole 4104 not only helps to balance the pressure and reduce the load caused by the internal pressure difference, but also promotes heat dissipation and prevents performance problems caused by temperature increase. In addition, the vent hole 4104 can also allow the terminal to pass through. Such a design improves the space utilization, simplifies the internal wiring, and makes the connection between the motor and the external circuit more convenient and direct.

[0087] In some cases, such as Figure 5 As shown, the cross-section of the assembly bracket 41 is circular, the assembly hole 4102 is located at the center, the first adjustment hole 4101, the positioning hole 4103 and the vent hole 4104 are all distributed in the circumferential direction of the assembly hole 4102, and the distance between the first adjustment hole 4101 and the assembly hole 4102 is smaller than the distance between the positioning hole 4103 and the assembly hole 4102. Optionally, the first adjustment hole 4101, the positioning hole 4103 and the vent hole 4104 are all arranged in a three-point manner.

[0088] It should be noted that the present embodiment does not limit the structural form of the second support structure 4. The second support structure 4 can adopt different structural forms to meet the needs of rotary compressors 100 of different types and specifications. For example, various forms of bearings, such as rolling bearings, sliding bearings, magnetic bearings, air bearings, hydraulic bearings, and hybrid bearings. The type of second support structure 4 to be selected depends on factors such as the specific application, operating conditions, performance requirements, and cost-effectiveness of the compressor. Each type of bearing has its own unique advantages and limitations, so these factors need to be considered comprehensively when designing a rotary compressor.

[0089] Please continue to refer to Figure 3 and Figure 4 , and refer to Figure 7 and Figure 8 , Figure 7 A schematic diagram of the structure of a second support structure provided in another embodiment of the present application, Figure 8 A schematic diagram of the disassembly of a second supporting structure provided in another embodiment of the present application.

[0090] In the first structural form of the second support structure, Figure 3 and Figure 4 As shown, the bearing device 42 is in the form of a rolling bearing. The bearing body 421 of the bearing device 42 includes a rolling bearing seat 42111 and a rolling bearing 42112. The rolling bearing 42112 is installed on the rolling bearing seat 42111. The rolling bearing seat 42111 is provided with a second adjustment hole 4201. The rolling bearing seat 42111 is installed on the assembly hole 4102.

[0091] In this embodiment, the bearing device 42 adopts the rolling bearing form, which has many significant advantages: its low friction characteristics help improve energy efficiency and performance; high load capacity makes it adaptable to the mechanical stress requirements of the compressor; long life reduces maintenance costs and downtime; high-precision positioning ensures the stability and reliability of the compressor; smooth operation reduces vibration and noise; easy installation and adjustment design simplifies maintenance work; at the same time, it is highly adaptable and can cope with various operating conditions. These characteristics comprehensively reflect the important value of rolling bearings in improving the performance of rotary compressors and extending their service life.

[0092] In the second structural form of the second support structure, Figure 7 and Figure 8 As shown, the bearing device 42 is in the form of a sliding bearing. The bearing body 421 of the bearing device 42 includes a sliding bearing seat 42121 and a sliding bearing 42122. The sliding bearing 42122 is installed on the sliding bearing seat 42121. The sliding bearing seat 42121 is provided with a second adjustment hole 4201. The sliding bearing seat 42121 is installed in the assembly hole 4102.

[0093] In this embodiment, the bearing device 42 is in the form of a sliding bearing, which is characterized by a simple structure and easy maintenance. They perform well in low-speed operation and applications requiring good damping characteristics, and are generally low in cost. Sliding bearings are still a reliable choice under certain specific conditions, such as occasions where starting and stopping are frequent, or in environments where it is difficult to achieve the precise control required for rolling elements. Therefore, the choice of rolling bearings or sliding bearings depends on the specific application requirements of the compressor, cost-effectiveness analysis, and convenience of maintenance.

[0094] In a specific embodiment, the adjusting device 43 uses a screw as its adjusting element, providing a simple and reliable adjustment method. This design allows the position of the bearing device 42 relative to the crankshaft 2 to be accurately adjusted by tightening or loosening the screw to adapt to different loads and operating conditions. The reliability of the screw is reflected in that once the positioning is completed, the bearing device 42 can be firmly fixed by locking the screw to avoid displacement during the operation of the compressor. In addition, the easy maintenance of the screw ensures that when subsequent maintenance or adjustment is required, the relevant work can be completed in a quick and cost-effective manner.

[0095] Please refer to Fig. 9 and Fig.10 ,in, Fig. 9 A schematic diagram of the structure of the support structure installation tool provided in the embodiment of the present application, Fig.10 A schematic structural diagram of the support structure installation tooling and the second support structure provided in an embodiment of the present application.

[0096] In a specific embodiment, the present application also provides a support structure installation tool 200 for pressing the second support structure 4 into the shell 1 to obtain the above-mentioned rotary compressor 100. The support structure installation tool 200 includes a connecting device 6 and a positioning device 7.

[0097] In this embodiment, the connecting device 6 is used to connect the pushing device. The first side of the positioning device 7 is positioned and assembled with the connecting device 6, and the second side of the positioning device 7 is positioned and assembled with the assembly bracket 41 of the second supporting structure 4, so that the assembly bracket 41 is pressed into the housing 1 under the pressure of the pushing device.

[0098] In the improvement of process manufacturability in the present application, a new structure and process that is more suitable for assembly is provided, and the support structure installation tool 200 plays a key role. The connecting device 6 is responsible for connecting to the pushing device to ensure that the pushing force can be transmitted. The positioning device 7 has two functional sides, the first side is precisely positioned and assembled with the connecting device 6, and the second side is positioned and assembled with the assembly bracket 41 of the second support structure 4. Through this configuration, the positioning device 7 not only ensures the correct position of the second support structure 4 when it is pushed into the shell 1, but also allows the assembly bracket 41 to be accurately pressed into the shell 1 under the pressure of the pushing device, thereby completing the assembly of the second support structure 4 in the rotary compressor 100. This process utilizes the precise positioning and connection functions of the support structure installation tool 200 to achieve efficient and reliable assembly operations.

[0099] Please continue to refer to Figure 2 and Fig.10 In some embodiments, the positioning device 7 has a positioning end surface 701 and a positioning peripheral surface 702 , the positioning end surface 701 is used to position with the end wall 12 of the shell 1 , and the positioning peripheral surface 702 is used to position with the inner wall 11 of the shell 1 .

[0100] In this embodiment, the end wall 12 of the shell 1 is used as the first tool positioning surface, and the verticality of the support structure installation tool 200 is ensured by positioning the positioning end surface 701 and the end wall 12; the inner wall 11 of the shell 1 is used as the inner diameter reference surface, and the concentricity of the support structure installation tool 200 is ensured by positioning the positioning circumferential surface 702 and the inner wall 11. This design enables the positioning device 7 to provide a stable positioning reference for the second support structure 4 in two directions, so that under the pressure of the pushing device, the assembly bracket 41 can be accurately pressed in, and the verticality and concentricity of the installation of the second support structure 4 can be guaranteed. Through the coordinated work of the positioning end surface 701 and the positioning circumferential surface 702, the installation tool 200 ensures the accuracy and repeatability of the entire assembly process, improves the assembly efficiency and the quality of the final product.

[0101] Please continue to refer to Fig. 9 and Fig.10 In some embodiments, the connecting device 6 includes a press interface 61 and a pressing plate 62. The press interface 61 is used to connect the pushing device. The pressing plate 62 is fixed to the press interface 61. The pressing plate 62 is used to position and assemble with the positioning device 7 and apply pressure to the positioning device 7.

[0102] In some embodiments, the positioning device 7 includes a first positioning plate 71 and a second positioning plate 72. The first positioning plate 71 is positioned and assembled with the connecting device 6. The first positioning plate 71 has a positioning end surface 701 for positioning with the end wall 12 of the shell 1. The second positioning plate 72 is assembled on the first positioning plate 71. The second positioning plate 72 has a positioning peripheral surface 702 for positioning with the inner wall 11 of the shell 1. The second positioning plate 72 is used to position and assemble with the assembly bracket 41 and apply pressure to the assembly bracket 41.

[0103] In some embodiments, the positioning device 7 is provided with a positioning pin 73 , and the positioning pin 73 is used for positioning with the assembly bracket 41 .

[0104] In some embodiments, the positioning device 7 is provided with a magnetic member 74 , and the magnetic member 74 is used to adsorb the assembly bracket 41 onto the positioning device 7 .

[0105] In a specific embodiment, Fig. 9 As shown, the press interface 61 of the connecting device 6 is inserted into the middle position of the pressing plate 62, and the press interface 61 is fixedly connected to the pressing plate 62, and the pressing plate 62 applies pressure to the positioning device 7, thereby applying pressure to the assembly bracket 41 and pressing the second supporting structure 4 into the shell 1; after the installation of the second supporting structure 4 is completed, when the positioning device 7 needs to be taken out, the connecting device 6 is fixedly connected to the positioning device 7, for example, the press interface 61 is passed through the end of the pressing plate 62 and welded to the positioning device 7, and the press interface 61 applies a pulling force to the positioning device 7, thereby realizing the removal of the positioning device 7.

[0106] The first positioning plate 71 of the positioning device 7 is provided with a limiting column on the first side and a spring is mounted on the limiting column. The pressure plate 62 of the connecting device 6 is provided with an opening and cooperates with the limiting column, so that the first positioning plate 71 and the connecting device 6 are positioned and assembled. The first positioning plate 71 and the second positioning plate 72 are provided with a stepped guide column 75, a guide sleeve 76 and a spring 77. When the pressure plate 62 starts to apply pressure to the first positioning plate 71, the pressure plate 62 first pushes the stepped guide column 75, so that the stepped guide column 75 drives the positioning pin 73 to extend, and the positioning pin 73 is inserted into the positioning hole 4103 of the assembly bracket 41 to achieve positioning. The assembly bracket 41 is fixed on the second positioning plate 72 under the adsorption of the magnetic member 74. When the pressure plate 62 is further pressed, the pressure plate 62 pushes the first positioning plate 71, so that the positioning device 7 applies pressure to the assembly bracket 41 and presses the second support structure 4 into the housing 1.

[0107] Optionally, the magnetic member 74 is a permanent magnet. The pushing device is a hydraulic press.

[0108] In a specific installation process, the second support structure 4 is pre-installed. Taking the bearing device 42 as a rolling bearing, the rolling bearing 42112 is first pressed into the rolling bearing seat 42111 in the direction of Figure 4 As shown, from right to left, the rolling bearing seat 42111 and the assembly bracket 41 are pre-tightened by the adjustment device 43, i.e., the screws. The installation direction is Figure 4 As shown from left to right. Then, the second support structure 4 is installed with the housing 1, and the second support structure 4 is installed on the support structure installation tool 200, and is positioned by the positioning pin 73, and is adsorbed by the magnetic part 74, i.e., the permanent magnet. Under the action of the hydraulic press, the support structure installation tool 200 presses the second support structure 4 into the housing 1, so that the rolling bearing 42112 is pressed into the tail of the crankshaft 2, and the inner diameter of the rolling bearing 42112 is fixed to the crankshaft 2 by a compression spring or a retaining spring. Because the free clearance of the rolling bearing 42112 is large, it is easy to assemble; after fixing the assembly bracket 41 with the housing 1, the hydraulic press and the support structure installation tool 200 are withdrawn, and the crankshaft 2 is rotated using a test tool such as a torque wrench. If the torque exceeds the standard, loosen the pre-locking screw, and tighten the screw after adjusting the core again. If the torque meets the requirements, directly tighten the screw to complete the assembly.

[0109] It should be noted that many of the components mentioned in this application are universal standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or through conventional experimental methods.

[0110] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0111] The rotary compressor and support structure installation tooling provided by the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A rotary compressor, comprising a housing, a crankshaft and a first support structure located in the housing, wherein a first end of the crankshaft is supported by the first support structure, characterized in that: The rotary compressor further comprises a second supporting structure, the second supporting structure being installed in the housing, and the second end of the crankshaft being supported by the second supporting structure; The second supporting structure comprises: An assembly bracket, wherein the assembly bracket is provided with a first adjustment hole and an assembly hole; A bearing device, wherein the bearing device is provided with a second adjustment hole, the bearing device is mounted in the assembly hole, and the bearing device is used to support the second end of the crankshaft; An adjusting device is installed in the first adjusting hole and the second adjusting hole, and is used to adjust the position of the bearing device relative to the crankshaft and fix the bearing device in the assembly bracket.

2. The rotary compressor according to claim 1, characterized in that: The outer periphery of the assembly bracket is fixed to the inner wall of the shell; wherein: The assembly bracket is interference fit with the housing; and / or, The assembly bracket is fixed to the shell by welding.

3. The rotary compressor according to claim 1, characterized in that: The bearing device comprises a rolling bearing seat and a rolling bearing, wherein the rolling bearing is mounted on the rolling bearing seat, the rolling bearing seat is provided with the second adjustment hole, and the rolling bearing seat is mounted on the assembly hole.

4. The rotary compressor according to claim 1, characterized in that: The bearing device comprises a sliding bearing seat and a sliding bearing, wherein the sliding bearing is mounted on the sliding bearing seat, the sliding bearing seat is provided with the second adjustment hole, and the sliding bearing seat is mounted on the assembly hole.

5. The rotary compressor according to claim 1, characterized in that: The bearing device includes a bearing body and a support platform connected to the outer periphery of the bearing body, the bearing body is installed in the assembly hole, the support platform is provided with the second adjustment hole, and the support platform is used to limit the one-way assembly of the bearing device and the assembly bracket.

6. The rotary compressor according to claim 1, characterized in that: The assembly bracket is also provided with a positioning hole, and the positioning hole is used for positioning with the support structure installation tool; and / or, The assembly bracket is also provided with a vent hole.

7. A support structure installation tool, characterized in that: Used to press the second support structure into the housing to obtain the rotary compressor according to any one of claims 1 to 6, the support structure installation tool comprising: A connecting device, the connecting device is used to connect the pushing device; A positioning device, wherein a first side of the positioning device is positioned and assembled with the connecting device, and a second side of the positioning device is positioned and assembled with an assembly bracket of the second supporting structure, so as to press the assembly bracket into the shell under the pressure of a pushing device.

8. The support structure installation tool according to claim 7, characterized in that: The positioning device comprises a positioning end surface and a positioning peripheral surface, wherein the positioning end surface is used for positioning with the end wall of the shell, and the positioning peripheral surface is used for positioning with the inner wall of the shell.

9. The support structure installation tool according to claim 7, characterized in that: The connecting device comprises a press interface and a pressing plate, wherein the press interface is used to connect the pushing device, the pressing plate is fixed to the press interface, and the pressing plate is used to position and assemble with the positioning device and apply pressure to the positioning device; and / or, The positioning device includes a first positioning plate and a second positioning plate, the first positioning plate is positioned and assembled with the connecting device, the first positioning plate has a positioning end surface for positioning with the end wall of the shell, the second positioning plate is assembled on the first positioning plate, the second positioning plate has a positioning circumferential surface for positioning with the inner wall of the shell, and the second positioning plate is used to position and assemble with the assembly bracket and apply pressure to the assembly bracket.

10. The support structure installation tool according to claim 7, characterized in that: The positioning device is provided with a positioning pin, and the positioning pin is used for positioning with the assembly bracket; and / or, The positioning device is provided with a magnetic member, and the magnetic member is used to make the assembly bracket adsorbed on the positioning device.

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