Refrigerating machine rotor structure

Abstract

The utility model discloses a refrigerator rotor structure, which comprises a rotor core body, a rotor split body, a circular truncated cone rib part, a taper strip rib, a carbon fiber filling strip and a carbon fiber filling plate, the circular truncated cone rib part is arranged outside a block body, close to an outer ring body of the rotor core body, of the rotor core body in a protruding manner, and the rotor core body and the circular truncated cone rib part are clamped in a fixed slot formed in the surface of the rotor split body in an interference manner; an integrated rotor in an existing patent is split into a rotor core body and a rotor split body, meanwhile, an original patent technical structure is reserved at the rotor core body, an arc reducing groove is formed in the rotor split body for weight reduction, and then carbon fiber filling plates are used for supplementing and filling. The taper strip ribs at the rotor core body are provided with strip reducing grooves for weight reduction, carbon fiber filling strips are arranged for supplementary filling, the rotor core body is knocked into the rotor split body in an interference mode and locked through hexagon socket screws, the rotor core body can be normally used for the rotor, and the rotor split body and the rotor core body are provided with weight reduction structures so that the rotational inertia of the rotor can be reduced, and the service life of the rotor can be prolonged. The compressor energy efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration technology, and in particular to a refrigeration rotor structure. Background Technology

[0002] During the operation of a rotary Stirling refrigerator, the drive electronically controlled rotor assembly rotates. The rotor assembly is fixedly connected to the central drive shaft (i.e., the rotating shaft). The rotational motion is converted into the reciprocating motion of the piston through the eccentric mechanism on the rotating shaft, thus creating a refrigeration effect.

[0003] A refrigeration rotor structure and a refrigeration machine are disclosed in CN217469579U. The rotor structure includes: a rotor with a conical hole coaxially arranged thereon; a rotating shaft disposed inside the rotor with a conical shaft cooperating with the conical hole; and a fixing cap disposed at one end of the rotor, the fixing cap being connected to the small end of the conical shaft to tighten the conical shaft within the conical hole.

[0004] In existing patented technologies, the rotor structure of a refrigeration machine includes a rotor, a shaft, and a fixed cap. The rotor in this type of rotor structure is usually an integrated metal structure, which has a large weight when rotating, resulting in a large inertial force during operation, thus affecting the rotor's response speed and the compressor's energy efficiency. Therefore, we propose a rotor structure for a refrigeration machine. Utility Model Content

[0005] The main objective of this invention is to provide a refrigeration compressor rotor structure. By disassembling the existing integrated rotor into a rotor core and a rotor body, the original patented technology structure is retained in the rotor core. The rotor body is equipped with arc-shaped grooves to reduce weight, which are then filled with carbon fiber filler plates. Similarly, the rotor core is equipped with tapered ribs to reduce weight, which are then filled with carbon fiber filler strips. After the rotor core is interference-fitted into the rotor body and locked with hexagonal bolts, it can be used normally as a rotor. The weight-reducing structures in the rotor body and rotor core reduce the rotor's moment of inertia, improve the rotor's response speed, and enhance the compressor's energy efficiency, effectively solving the problems in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A refrigeration rotor structure includes a rotor core, a rotor body, a frustum rib, a tapered rib, a carbon fiber filler strip, and a carbon fiber filler plate. The rotor core has a frustum rib protruding from its outer ring near its outer surface. The rotor core and the frustum rib are interference-fitted into a fixed slot on the surface of the rotor body. The inner wall of the fixed slot has a tapered groove for mounting the tapered rib. The tapered rib is integrally formed on the outer side of the rotor core and the frustum rib. A carbon fiber filler strip is fitted and bonded into the tapered rib. A carbon fiber filler plate is fitted into the rotor body outside the fixed slot. An internal hex bolt is screwed between the rotor core and the rotor body.

[0008] Furthermore, the tapered rib has a strip reduction groove on its end face, and a carbon fiber filler strip is fitted and bonded into the strip reduction groove;

[0009] By adopting the above technical solution, after the carbon fiber filler strip is clamped and bonded in the tapered rib groove, it can reduce the weight at the tapered rib while providing compensatory support.

[0010] Furthermore, the rotor split end face outside the fixed slot is provided with three sets of arc-reduction grooves, and carbon fiber filler plates are installed and bonded in the arc-reduction grooves.

[0011] By adopting the above technical solution, after the carbon fiber filler plate is clamped and bonded at the three sets of arc reduction grooves of the rotor body, it can reduce the weight of the rotor body while providing compensatory support.

[0012] Furthermore, a side-rotating hole is provided between a set of plates of the carbon fiber filler plate and the rotor body and the rotor core, and an internal hexagon bolt is screwed into the side-rotating hole. An enlarged hole is provided on the block of the rotor body near the side-rotating hole, and the head of the internal hexagon bolt is screwed into the enlarged hole.

[0013] By adopting the above technical solution, the internal hex bolts can be screwed and locked in the side screw holes of the rotor body, carbon fiber filler plate and rotor core, and the head of the internal hex bolts can be hidden in the enlarged hole of the rotor body.

[0014] Furthermore, the tapered grooves are provided in three sets at three points on the inner wall of the slot cavity, and tapered ribs are interference-fitted into the three sets of grooves.

[0015] By adopting the above technical solution, after the rotor split is opened with three sets of tapered grooves at the fixed slot to reduce the weight, the three sets of tapered ribs can be connected by interference fit into the tapered grooves.

[0016] Furthermore, the tapered rib has a rib edge protruding outward at the thick cone near the frustum rib part, and the rib plate of the tapered rib is interference-fitted into the large groove of the tapered rib groove;

[0017] By adopting the above technical solution, the edge of the tapered rib can be hammered into the large groove of the tapered rib for secure installation.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This utility model separates the integrated rotor of the existing patent into a rotor core and a rotor body. At the same time, the original patent technology structure is retained in the rotor core. The rotor body is equipped with an arc-shaped groove to reduce weight and then filled with carbon fiber filler plates. The rotor core is equipped with a strip-shaped groove to reduce weight and then filled with carbon fiber filler strips. After the rotor core is interference-fitted into the rotor body and locked with hexagonal bolts, it can be used normally as a rotor. The weight-reducing structure in the rotor body and rotor core can reduce the rotor's rotational inertia, improve the rotor's response speed, and improve the compressor's energy efficiency.

[0020] Furthermore, after the rotor assembly, which consists of a rotor split and a rotor core, wears down, the internal hex bolts can be removed, and then a pulling tool can be used to pull the rotor split and rotor core apart for disassembly. This allows the rotor split to be replaced and reinstalled, eliminating the need to scrap the entire rotor after the outer surface of the rotor wears down, thus reducing maintenance costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a refrigeration rotor structure according to the present invention.

[0022] Figure 2 This is an exploded view of a refrigeration rotor structure according to the present invention.

[0023] In the diagram: 1. Rotor core; 2. Rotor body; 3. Fixed slot; 4. Frustum rib; 5. Tapered groove; 6. Tapered rib; 7. Strip reduction groove; 8. Carbon fiber filler strip; 9. Arc reduction groove; 10. Carbon fiber filler plate; 11. Side rotation hole; 12. Socket head bolt. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1-2As shown, a refrigeration rotor structure includes a rotor core 1, a rotor body 2, a frustum rib 4, a tapered rib 6, a carbon fiber filler 8, and a carbon fiber filler plate 10. The rotor core 1 has a frustum rib 4 protruding from its outer block near its outer ring. The rotor core 1 and the frustum rib 4 are interference-fitted into a fixed slot 3 on the surface of the rotor body 2. The inner wall of the fixed slot 3 has a tapered groove 5 for mounting the tapered rib 6. The tapered rib 6 is integrally formed on the outside of the rotor core 1 and the frustum rib 4. A carbon fiber filler 8 is fitted and bonded into the tapered rib 6. A carbon fiber filler plate 10 is fitted into the rotor body 2 outside the fixed slot 3. An internal hex bolt 12 is screwed between the rotor core 1 and the rotor body 2.

[0026] The tapered rib 6 has a strip reduction groove 7 on its end face, and a carbon fiber filler strip 8 is fitted and bonded inside the strip reduction groove 7.

[0027] By adopting the above technical solution, after the carbon fiber filler strip 8 is clamped and bonded in the strip reduction groove 7 of the tapered rib 6, it can reduce the weight at the tapered rib 6 while providing compensatory support.

[0028] Among them, the rotor split 2 on the outer side of the fixed slot 3 is provided with three sets of arc reduction grooves 9, and carbon fiber filler plate 10 is installed and bonded in the arc reduction grooves 9.

[0029] By adopting the above technical solution, after the carbon fiber filler plate 10 is clamped and bonded at the three sets of arc reduction grooves 9 of the rotor split 2, it can reduce the weight of the rotor split 2 while providing compensatory support.

[0030] Among them, a set of plates of the carbon fiber filler plate 10 are provided with a side rotation hole 11 between the rotor body 2 and the rotor core 1, and an internal hexagon bolt 12 is screwed into the side rotation hole 11. An enlarged hole is provided at the block of the rotor body 2 near the side rotation hole 11, and the head of the internal hexagon bolt 12 is screwed into the enlarged hole.

[0031] By adopting the above technical solution, the hexagon socket bolt 12 can be screwed and locked in the side screw hole 11 of the rotor body 2, the carbon fiber filler plate 10 and the rotor core 1, while the head of the hexagon socket bolt 12 can be hidden in the enlarged hole of the rotor body 2.

[0032] Among them, the tapered groove 5 is provided with three sets at three points on the inner wall of the slot cavity of the fixed slot 3, and the tapered ribs 6 are interference-fitted at the three sets of grooves of the tapered groove 5.

[0033] By adopting the above technical solution, after three sets of tapered grooves 5 are opened at the fixed slot 3 of the rotor body 2 to reduce weight, the three sets of tapered ribs 6 can be interference-fitted into the tapered grooves 5 for connection.

[0034] Among them, the tapered rib 6 has a rib edge protruding outward at the thick cone part near the frustum rib part 4, and the rib plate of the tapered rib 6 is interference-fitted into the large groove of the tapered rib groove 5.

[0035] By adopting the above technical solution, the edge of the tapered rib 6 can be hammered and pressed into the large groove of the tapered rib groove 5 for secure installation.

[0036] It should be noted that this utility model is a refrigeration machine rotor structure. It separates the refrigeration machine rotor in the existing patent technology into a rotor core 1 and a rotor body 2. The internal structure of the rotor core 1 remains unchanged from the patent technology, while the rotor body 2 is an externally detachable structure. The rotor body 2 has a fixed slot 3 and a tapered groove 5 inside, while the rotor core 1 has a frustum rib 4 and a tapered rib 6 on its outer side, which can be interference-fitted into the fixed slot 3 and tapered groove 5 of the rotor body 2 for connection. The rotor core 1 can be interference-fitted into the rotor body 2 under mechanical impact. Then, the hexagonal socket head cap screws 12 can be screwed into the rotor body 2, the carbon fiber filler plate 10, and the side rotation holes 11 of the rotor core 1. After tightening, the head of the hexagon socket bolt 12 can be hidden in the enlarged hole of the rotor body 2. At this time, after the carbon fiber filler strip 8 is clamped and bonded in the strip reduction groove 7 of the tapered rib 6, it can reduce the weight at the tapered rib 6 while providing compensating support. After the carbon fiber filler plate 10 is clamped and bonded in the three sets of arc reduction grooves 9 of the rotor body 2, it can reduce the weight at the rotor body 2 while providing compensating support. After the rotor core 1 and rotor body 2 are assembled into a rotor structure, they can be normally connected to the shaft in the existing patent. If the rotor core 1 and rotor body 2 need to ensure the running accuracy when assembled into a rotor structure, dynamic balancing can be performed by a professional dynamic balancing technician using dynamic balancing equipment.

[0037] It should be noted that this utility model is a rotor structure for a refrigeration machine. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A refrigeration rotor structure, characterized in that: The rotor assembly includes a rotor core (1), a rotor body (2), a frustum rib (4), a tapered rib (6), a carbon fiber filler (8), and a carbon fiber filler plate (10). The rotor core (1) has a frustum rib (4) protruding from its outer ring. The rotor core (1) and the frustum rib (4) are press-fitted into a fixed slot (3) on the surface of the rotor body (2). The inner wall of the fixed slot (3) has a tapered groove (5) for mounting the tapered rib (6). The tapered rib (6) is integrally formed on the outside of the rotor core (1) and the frustum rib (4). The tapered rib (8) is mounted and bonded inside the tapered rib (6). The carbon fiber filler plate (10) is mounted inside the rotor body (2) outside the fixed slot (3). The rotor core (1) and the rotor body (2) are screwed together with an internal hexagon bolt (12).

2. The refrigeration rotor structure according to claim 1, characterized in that: The tapered rib (6) has a strip reduction groove (7) on its end face, and a carbon fiber filler strip (8) is fitted and bonded inside the strip reduction groove (7).

3. The refrigeration rotor structure according to claim 1, characterized in that: The rotor body (2) outside the fixed slot (3) has three sets of arc reduction grooves (9) on its end face, and a carbon fiber filler plate (10) is installed and bonded inside the arc reduction groove (9).

4. A refrigeration rotor structure according to claim 1, characterized in that: A side-rotating hole (11) is provided between a set of plates of the carbon fiber filler plate (10) and the rotor body (2) and the rotor core (1), and an internal hexagon bolt (12) is screwed into the side-rotating hole (11). An enlarged hole is provided on the block of the rotor body (2) near the side-rotating hole (11), and the head of the internal hexagon bolt (12) is screwed into the enlarged hole.

5. A refrigeration rotor structure according to claim 1, characterized in that: The tapered groove (5) has three sets of openings at three points on the inner wall of the slot cavity of the fixed slot (3), and tapered ribs (6) are interference-fitted into the three sets of slots of the tapered groove (5).

6. A refrigeration rotor structure according to claim 1, characterized in that: The tapered rib (6) has a rib edge protruding outward at the thick cone part near the frustum rib (4), and the rib plate of the tapered rib (6) is inserted into the large groove of the tapered rib groove (5) with interference fit.

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