Compressor rotor balancing weight, compressor rotor assembly and compressor assembly
By designing a compressor rotor counterweight with a gradually varying thickness and a sloping structure, the problems of high wind resistance and high power consumption in existing technologies have been solved, achieving energy saving, cost reduction, and reduced material consumption.
Patent Information
- Application Number
- CN202520020660.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-03
AI Technical Summary
In existing compressor rotor assemblies, the balance block has a uniform thickness structure, which results in high air resistance, high power consumption, and high operating costs.
The compressor rotor counterweight is designed with a gradually increasing thickness, with the thickness of the counterweight body gradually increasing from one side to the other, and set at an acute or obtuse angle with the motor shaft to form a sloping structure, thereby reducing wind resistance.
It reduces wind resistance, power consumption, energy saving and cost reduction, and lowers material and manufacturing costs.
Smart Images
Figure CN223729567U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the compressor field, specifically, relate to a compressor rotor counterweight, compressor rotor subassembly and compressor assembly. BACKGROUND
[0002] The compressor is a driven fluid machine that promotes low-pressure gas to high-pressure gas, is the heart of refrigeration system, it inhales low-temperature low-pressure refrigerant gas from the suction pipe, and after being compressed by the motor operation driving piston, the high-temperature high-pressure refrigerant gas is discharged to the exhaust pipe, and power is provided for refrigeration cycle. The compressor can be applied to various occasions, for example, it can be applied to a vehicle-mounted air conditioning system. The compressor is various, and when the compressor works, the rotor assembly needs to be rotated to drive the moving scroll to rotate, and in order to improve the rotation stability and improve the performance, the balance block is generally arranged on the rotor core of the rotor assembly. The balance block is generally an arc block, and the number of balance blocks is generally two, and the two balance blocks are fixed on the opposite sides of the rotor core.
[0003] The inventor found at least the following shortcomings of the prior art compressor rotor assembly in the research:
[0004] The balance block is an equal-thickness structure, and the upper surface of the balance block is subjected to large wind resistance during the rotation of the rotor assembly, and the power consumption is large. UTILITY MODEL CONTENTS
[0005] The utility model aims to, for example, provide a compressor rotor counterweight, compressor rotor subassembly and compressor assembly, which can reduce wind resistance, thereby reducing power consumption, and can reduce consumables and reduce manufacturing cost.
[0006] The embodiment of the utility model can be realized as follows:
[0007] In the first aspect, the utility model provides a compressor rotor counterweight, comprising:
[0008] The counterweight body has a first side and a second side oppositely arranged in the length direction thereof, and the thickness of the counterweight body gradually increases in the direction from the first side to the second side.
[0009] In the optional implementation, the counterweight body has a first surface and a second surface oppositely arranged in the thickness direction thereof, and the distance between the first surface and the second surface gradually increases in the direction from the first side to the second side.
[0010] Based on the above scheme, the distance between the first surface and the second surface of the counterweight body is the thickness of the counterweight, which facilitates the design of the thickness of the counterweight body and improves the machining precision.
[0011] In an optional embodiment, one of the first surface and the second surface is perpendicular to the thickness direction of the counterweight body, and the other of the first surface and the second surface is arranged at an acute angle or an obtuse angle with the thickness direction.
[0012] Based on the above scheme, the counterweight body is generally installed on the end face of the rotor core, the end face of the rotor core is a plane and is perpendicular to the motor shaft, when the counterweight body cooperates with the rotor core, the surface perpendicular to the thickness direction is directly attached to the end face of the rotor core, and the other surface of the counterweight body is naturally arranged at an acute angle or an obtuse angle with the axis of the motor shaft, so that the positioning of the counterweight body can be quickly realized, the installation is convenient and fast, and the installation position is accurate.
[0013] In an optional embodiment, a fixing hole is arranged on the counterweight body, and the fixing hole penetrates the counterweight body in the thickness direction of the counterweight body.
[0014] Based on the above scheme, a threaded part is arranged in the fixing hole, and the threaded part is screwed with the rotor core, so that the counterweight body can be fixed on the rotor core, the fixing structure is simple, and the operation is convenient and flexible.
[0015] In an optional embodiment, a weight-reducing groove is arranged on the counterweight body.
[0016] Based on the above scheme, the weight-reducing groove can save materials and reduce costs.
[0017] In an optional embodiment, the counterweight body is provided with an arc-shaped groove for cooperating with the motor shaft, and the extending direction of the axis of the cylindrical surface of the arc-shaped groove is consistent with the thickness direction of the counterweight body.
[0018] Based on the above scheme, the arc-shaped groove is attached to the outer circumferential surface of the motor shaft, the positioning of the counterweight body in the radial direction of the rotor core is realized, and the installation is facilitated.
[0019] In a second aspect, the utility model provides a kind of compressor rotor assembly, and the compressor rotor assembly includes:
[0020] Motor shaft, rotor core and the compressor rotor counterweight block of any one of the foregoing embodiments;The rotor core is sleeved on the outer of the motor shaft, the counterweight body is fixed to the rotor core, and the surface of the counterweight body away from the rotor core is arranged at an acute angle or an obtuse angle with the axis of the motor shaft.
[0021] In an optional embodiment, the number of the counterweight body is two, and the two counterweight bodies are respectively installed on the two sides of the rotor core.
[0022] Based on the above scheme, by arranging the counterweight block body on both sides of the rotor core, the performance of the rotor assembly in operation can be improved.
[0023] In an optional embodiment, the counterweight block body is fixedly connected with the rotor core through a screw.
[0024] Based on the above scheme, the connection mode of the counterweight block body and the rotor core is simple and reliable, firm in fixation, and convenient and efficient in disassembly and assembly.
[0025] In a third aspect, the utility model provides a compressor assembly, the compressor assembly includes:
[0026] The compressor rotor assembly according to the foregoing embodiment.
[0027] The beneficial effects of the utility model embodiment include, for example:
[0028] As described above, the compressor rotor counterweight block provided in the embodiment is provided with a gradually increasing thickness of the counterweight block body from the first side to the second side, that is, the thickness of the counterweight block body is gradually changed, compared with the equal-thickness balancing block in the prior art, the weight is reduced, the material consumption is reduced, and the processing and manufacturing costs are reduced. At the same time, after the counterweight balancing block is installed on the rotor core, the surface of the counterweight balancing block away from the rotor core is not perpendicular to the motor shaft, that is, the surface of the counterweight balancing block away from the rotor core is arranged at an acute angle or an obtuse angle with the motor shaft, the surface of the counterweight balancing block away from the rotor core forms a slope structure, when the rotor core drives the counterweight balancing block to rotate, the lower side of the slope structure is the rotating front end, that is, the windward end, so that the resistance of the counterweight balancing block during rotation is small, the wind resistance is reduced, the power consumption is reduced, and the energy is saved. BRIEF DESCRIPTION OF DRAWINGS
[0029] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will briefly introduce the drawings needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.
[0030] Figure 1 It is a schematic view of the compressor rotor counterweight block of the embodiment of the application.
[0031] Figure 2 It is a schematic view of one perspective of the compressor rotor assembly of the embodiment of the application.
[0032] Figure 3 It is a schematic view of another perspective of the compressor rotor assembly of the embodiment of the application.
[0033] Icon:
[0034] 100 - weight block body; 110 - first side; 120 - second side; 130 - first surface; 140 - second surface; 150 - arc-shaped recess; 160 - weight-reducing recess; 170 - fixing hole; 001 - motor shaft; 002 - rotor core; 003 - screw member. DETAILED DESCRIPTION
[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.
[0036] Therefore, the detailed description of the embodiments of the present application provided in the drawings below is not intended to limit the scope of the claimed present application, but only represents selected 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 labor are within the scope of protection of the present application.
[0037] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0038] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0039] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0040] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.
[0041] In the prior art, the balancing block of the compressor rotor assembly is provided in an equal thickness structure, the number of balancing blocks is generally two and is respectively installed on the opposite two end surfaces of the rotor core 002, the thickness direction of the balancing block is consistent with the axis of the motor shaft 001, and the two surfaces of the balancing block are perpendicular to the axis of the motor shaft 001. In this way, when the rotor assembly rotates, the wind resistance received by the balancing block is large, the power consumption is high, and the operation cost is high.
[0042] In view of this, the designer provides a compressor rotor counterweight block, which reduces power consumption by reducing wind resistance and saves energy and reduces cost.
[0043] Please refer to Figure 1 The embodiment provides a compressor rotor counterweight block, which comprises a counterweight block body 100, the counterweight block body 100 has a first side 110 and a second side 120 which are oppositely arranged in the length direction of the counterweight block body 100, and the thickness of the counterweight block body 100 gradually increases in the direction from the first side 110 to the second side 120.
[0044] As described above, the working principle of the compressor rotor counterweight block provided by the embodiment is as follows:
[0045] Please refer to Figure 2 By setting the thickness of the counterweight block body 100 to gradually increase in the direction from the first side 110 to the second side 120, that is, the thickness of the counterweight block body 100 is set to be gradually changed, compared with the equal thickness balancing block in the prior art, the weight is reduced, the material consumption is reduced, and the processing and manufacturing costs are reduced. At the same time, after the counterweight balancing block is installed on the rotor core 002, the surface of the counterweight balancing block away from the rotor core 002 is not perpendicular to the motor shaft 001, that is, the surface of the counterweight balancing block away from the rotor core 002 is arranged at an acute angle or an obtuse angle with the motor shaft 001, the surface of the counterweight balancing block away from the rotor core 002 forms a slope structure, when the rotor core 002 drives the counterweight balancing block to rotate, the lower side of the slope structure is the rotating front end, that is, the windward end, so that the resistance received by the counterweight balancing block when rotating is small, the wind resistance is reduced, the power consumption is reduced, and the energy is saved and the cost is reduced.
[0046] The following embodiments illustrate the details of the compressor rotor counterweight block of the present application in an exemplary manner.
[0047] In the embodiment, optionally, the counterweight body 100 is generally arc-shaped, and the counterweight has an inner arc surface and an outer arc surface. The inner arc surface defines an arc-shaped groove 150, and the inner arc surface is an arc-shaped groove wall of the arc-shaped groove 150. The axis of the cylindrical surface where the arc-shaped groove wall of the arc-shaped groove 150 is located extends in the same direction as the thickness direction of the counterweight body 100. When the counterweight body 100 is installed with the rotor core 002, the arc-shaped groove wall of the arc-shaped groove 150 is attached to the outer peripheral surface of the motor shaft 001, thereby achieving positioning of the counterweight body 100 in the radial direction of the rotor core 002, and facilitating installation.
[0048] Meanwhile, the counterweight body 100 also has a first surface 130 and a second surface 140 arranged opposite in the thickness direction thereof. The distance between the first surface 130 and the second surface 140 gradually increases in the direction from the first side 110 to the second side 120. The distance between the first surface 130 and the second surface 140 of the counterweight body 100 is the thickness of the counterweight, which facilitates the design of the thickness of the counterweight body 100 and improves the machining precision.
[0049] In the embodiment, optionally, one of the first surface 130 and the second surface 140 is perpendicular to the thickness direction of the counterweight body 100, and the other of the first surface 130 and the second surface 140 is arranged at an acute angle or an obtuse angle with the thickness direction. For example, in the embodiment, the first surface 130 is perpendicular to the thickness direction, and when assembled, the first surface 130 of the counterweight body 100 is attached to the end surface of the rotor core 002. The end surface of the rotor core 002 is generally a circular surface and is perpendicular to the axis of the motor shaft 001. In this way, the first surface 130 is perpendicular to the axis of the motor shaft 001.
[0050] It should be understood that the counterweight body 100 is generally installed on the end surface of the rotor core 002, and the end surface of the rotor core 002 is a flat surface and is perpendicular to the motor shaft 001. When the counterweight body 100 is fitted with the rotor core 002, the first surface 130 is directly attached to the end surface of the rotor core 002, and the second surface 140 of the counterweight body 100 is naturally arranged at an acute angle or an obtuse angle with the axis of the motor shaft 001, that is, the second surface 140 is inclined to the first surface 130, forming a slope structure that can reduce wind resistance. By attaching the first surface 130 to the rotor core 002, the positioning of the counterweight body 100 can be quickly achieved, and the installation is convenient and fast, and the installation position is accurate.
[0051] In the embodiment, optionally, the counterweight body 100 is provided with a fixing hole 170 penetrating through the counterweight body 100 in the thickness direction of the counterweight body 100. By threading a screw member 003 in the fixing hole 170 and screwing the screw member 003 with the rotor core 002, the counterweight body 100 is fixed on the rotor core 002, and the fixing structure is simple and convenient to operate.
[0052] It should be understood that the number of fixing holes 170 can be two and arranged at intervals, and each fixing hole 170 can be a cylindrical hole.
[0053] In the embodiment, optionally, the counterweight body 100 is provided with a weight-reducing groove 160. By providing the weight-reducing groove 160, the consumption of materials can be saved, and the cost can be reduced. The weight-reducing groove 160 can be arranged at the connecting position of the outer arc surface and the second surface 140, and the weight-reducing groove 160 can be located at the central position of the connecting line of the outer arc surface and the second surface 140, which is convenient for positioning and processing.
[0054] The compressor rotor counterweight provided in the embodiment is installed on the rotor core 002, and the second surface 140 of the counterweight balance block away from the rotor core 002 is not perpendicular to the motor shaft 001, that is, the second surface 140 of the counterweight balance block away from the rotor core 002 is arranged at an acute angle or an obtuse angle with the motor shaft 001, the surface of the counterweight balance block away from the rotor core 002 forms a slope structure, and when the rotor core 002 drives the counterweight balance block to rotate, the lower side of the slope structure is the rotating front end, that is, the windward end, so that the resistance of the counterweight balance block during rotation is small, the wind resistance is reduced, the power consumption is reduced, and energy is saved.
[0055] Please refer to Figure 2 and Figure 3 , the embodiment also provides a compressor rotor assembly, which comprises a motor shaft 001, a rotor core 002 and the above-mentioned compressor rotor counterweight. The rotor core 002 is sleeved on the motor shaft 001, the counterweight body 100 is fixed on the rotor core 002, and the surface of the counterweight body 100 away from the rotor core 002 is arranged at an acute angle or an obtuse angle with the axis of the motor shaft 001.
[0056] Optionally, the number of counterweight bodies 100 is two, and the two counterweight bodies 100 are respectively installed on the two sides of the rotor core 002. By arranging the counterweight bodies 100 on the two sides of the rotor core 002, the performance of the rotor assembly during operation can be improved.
[0057] It should be understood that the surface of each counterweight body 100 away from the rotor core 002 is arranged at an acute angle or an obtuse angle with respect to the motor shaft 001, and the outer surface of each counterweight body 100 is in an inclined state, thereby reducing the wind resistance.
[0058] In the embodiment, the counterweight body 100 is fixedly connected with the rotor core 002 through the screwing element 003. The connection mode of the counterweight body 100 and the rotor core 002 is simple and reliable, firm in fixation, convenient and efficient in disassembly and assembly. The screwing element 003 can be, but is not limited to, a bolt. The number of the screwing element 003 is equal to the number of the fixing hole 170, one screwing element 003 is arranged in each fixing hole 170, and the multiple screwing elements 003 are cooperated to improve the fixing effect of the counterweight body 100 and the rotor core 002.
[0059] The compressor rotor assembly provided in the embodiment has a small wind resistance and low power consumption due to the inclined surface of the outer side surface of the counterweight body 100.
[0060] The embodiment further provides a compressor assembly, which has at least the advantages of small wind resistance and low power consumption.
[0061] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A compressor rotor balance weight, characterized by, Comprising: a counterweight body (100) having a first side (110) and a second side (120) oppositely arranged in the length direction thereof, the thickness of the counterweight body (100) gradually increasing in the direction from the first side (110) to the second side (120).
2. The compressor rotor counterweight of claim 1, wherein: the counterweight body (100) has a first surface (130) and a second surface (140) oppositely arranged in the thickness direction thereof, the distance between the first surface (130) and the second surface (140) gradually increasing in the direction from the first side (110) to the second side (120).
3. The compressor rotor counterweight of claim 2, wherein: one of the first surface (130) and the second surface (140) is perpendicular to the thickness direction of the counterweight body (100), and the other of the first surface (130) and the second surface (140) is arranged at an acute angle or an obtuse angle with the thickness direction.
4. The compressor rotor counterweight of claim 1, wherein: a fixing hole (170) is arranged on the counterweight body (100), and the fixing hole (170) penetrates the counterweight body (100) in the thickness direction of the counterweight body (100).
5. The compressor rotor counterweight of claim 1, wherein: a weight-reducing groove (160) is arranged on the counterweight body (100).
6. The compressor rotor counterweight of claim 1, wherein: the counterweight body (100) is provided with an arc-shaped groove (150) for cooperating with a motor shaft (001), and the axis of the cylindrical surface on which the arc-shaped groove wall of the arc-shaped groove (150) extends is consistent with the thickness direction of the counterweight body (100).
7. A compressor rotor assembly characterized by, The compressor rotor assembly comprises: a motor shaft (001), a rotor core (002), and the compressor rotor counterweight of any one of claims 1-6; the rotor core (002) is sleeved on the outside of the motor shaft (001), the counterweight body (100) is fixed to the rotor core (002), and the surface of the counterweight body (100) away from the rotor core (002) is arranged at an acute angle or an obtuse angle with the axis of the motor shaft (001).
8. The compressor rotor assembly of claim 7, wherein: the number of the counterweight bodies (100) is two, and the two counterweight bodies (100) are respectively installed on the two sides of the rotor core (002).
9. The compressor rotor assembly of claim 8, wherein: the counterweight body (100) and the rotor core (002) are fixedly connected through a screw element (003).
10. A compressor assembly characterized by, The compressor assembly comprises: the compressor rotor assembly of claim 7.