Bearing structure of scroll compressor

Abstract

The utility model provides a bearing structure of a scroll compressor, and relates to the technical field of bearings. The bearing inner ring is arranged in the bearing outer ring, a first groove and a second groove are formed in the bearing outer ring and the bearing inner ring respectively, a rolling body rolls between the first groove and the second groove, two sets of retainers are installed on the rolling body, the rolling body is located between the two sets of retainers, and a taking and placing hole is formed in the bearing outer ring. A clamping groove and an insertion hole are formed in the inner wall of the pick-and-place hole; when the rolling body is oiled and lubricated, an oiler is inserted into the barrel rod and applies pressure to the barrel rod, so that the oil outlet hole is ejected out of the barrel cover, lubricating oil can flow out of the oil outlet hole to the rolling body, the rotating handle is pinched and the baffle is shaken to rotate, and the lubricating oil on the rolling body can be uniformly smeared through the smearing roller. The problem of uneven distribution of lubricating oil is solved.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a bearing structure for a scroll compressor. Background Technology

[0002] Scroll compressors are widely used in refrigeration, air conditioning, and heat pump industries due to their high efficiency, small size, light weight, and stable operation. Currently, scroll compressors are developing rapidly in my country and are gaining popularity due to their advantages such as high volumetric efficiency, high energy efficiency ratio, low vibration, fewer parts, and high speed. Specifically, the main structure of a scroll compressor includes a scroll assembly that compresses the refrigerant and a motor that drives the compression mechanism. The motor drives the moving scroll component in the scroll assembly to rotate relative to the stationary scroll component via a rotating shaft, thereby compressing the refrigerant gas. To enable the rotating shaft to rotate within the scroll compressor, upper and lower bearings are typically installed on both sides of the shaft. These bearings are aligned to ensure the rotational accuracy of the moving scroll component and prevent leakage or excessive wear. This invention relates to a bearing structure for a scroll compressor.

[0003] According to the published patent CN202321965761.1, "A Compressor Bearing," the compressor bearing includes an outer ring and an inner ring. The outer surface of the outer ring has a ball-removing hole. A cylindrical block is movably installed inside the ball-removing hole. The cylindrical block has two retaining cavities inside, and two retaining blocks are movably installed on the inner walls of the retaining cavities. The outer ring has two retaining grooves inside, and the inner walls of the retaining grooves are in contact with the outer surfaces of the retaining blocks. This invention uses retaining blocks to engage with the grooves, securing the cylindrical block within the ball-removing hole, thus enabling rapid installation of the bearing. A metal block quickly removes the cylindrical block from the ball-removing hole, allowing the balls to be quickly removed through the hole, facilitating easy removal of the balls from the bearing and simplifying installation and disassembly.

[0004] However, this utility model has the following problems in actual use: it is not convenient to lubricate the rolling elements between the outer ring and the inner ring of the bearing, the lubricating oil injection is troublesome, and the lubricating oil is unevenly distributed. Utility Model Content

[0005] This disclosure relates to a bearing structure for a scroll compressor to solve the problems of troublesome lubrication of rolling elements and uneven distribution of lubricating oil.

[0006] In a first aspect, this disclosure provides a bearing structure for a scroll compressor, specifically including: a bearing outer ring;

[0007] The bearing outer ring is internally provided with an inner ring. The outer and inner rings are respectively provided with a first groove and a second groove. A rolling element rolls between the first and second grooves, and two sets of cages are mounted on the rolling element. The rolling element is located between the two sets of cages. The bearing outer ring is provided with a pick-and-place hole, the inner wall of which is provided with a slot and an insertion hole. A plunger is installed in the pick-and-place hole, and a protrusion is fixed on the plunger, sliding within the slot. Four sets of sliding grooves are provided at the upper end of the plunger, within which insertion rods slide and are inserted into insertion holes. A top cover is fixed at the upper end of the plunger, and a rotating plate rotates between the top cover and the plunger. Spring steel is connected between the rotating plate and the four sets of insertion rods. A rotating rod is fixed on the rotating plate, and the upper end of the rotating rod is provided with an internal hexagonal groove. A through hole is provided on the top cover.

[0008] In at least some embodiments,

[0009] The bearing outer ring is provided with two sets of mounting grooves, and a baffle is installed in the mounting groove, with the baffle located between the bearing outer ring and the bearing inner ring.

[0010] In at least some embodiments,

[0011] A fixed seat is fixed to the baffle, and a rotating handle is rotatably mounted on the fixed seat.

[0012] In at least some embodiments,

[0013] A cylinder is fixed to the baffle, and a hollow rod moves inside the cylinder.

[0014] In at least some embodiments,

[0015] A stop block is fixed on the cylinder rod, and a conical spring is movably sleeved on the cylinder rod.

[0016] In at least some embodiments,

[0017] The cylinder rod is provided with an oil outlet hole, and a cylinder cover is fixed on the cylinder body. The cylinder cover is provided with a through hole, and the cylinder rod slides in the through hole on the cylinder cover.

[0018] In at least some embodiments,

[0019] A welding seat is fixed on the baffle, a buffer plate is installed on the welding seat, four sets of guide rods are set between the buffer plate and the welding seat, and springs are sleeved on the guide rods. Side plates are installed at the upper and lower ends of the buffer plate by bolts, and an applicator roller is installed between the two sets of side plates by bearings.

[0020] This utility model provides a bearing structure for a scroll compressor, which has the following beneficial effects:

[0021] In this invention, a cylindrical body is fixed to a baffle plate, and a cylindrical rod is movable inside the cylindrical body. A stop block is fixed to the cylindrical rod, and a conical spring is movably sleeved on the cylindrical rod. An oil outlet hole is provided on the cylindrical rod, and a cylindrical cover is fixed to the cylindrical body. A through hole is provided on the cylindrical cover, and the cylindrical rod slides in the through hole on the cylindrical cover. When lubricating the rolling element, the oil injector is inserted into the cylindrical rod and pressure is applied to the cylindrical rod, causing the oil outlet hole to be pushed out from the cylindrical cover. At this time, the lubricating oil can flow out from the oil outlet hole onto the rolling element. A welding seat is fixed to the baffle plate, and a buffer plate is installed on the welding seat. Four sets of guide rods are provided between the buffer plate and the welding seat, and springs are sleeved on the guide rods. Side plates are bolted to the upper and lower ends of the buffer plate. A spreading roller is installed between the two sets of side plates through a bearing. By pinching the rotating handle and shaking the baffle plate to make it rotate, the lubricating oil on the rolling element can be spread evenly by the spreading roller, solving the problem of uneven lubricating oil distribution.

[0022] In addition, the outer ring of the bearing in this utility model is provided with a pick-up and drop hole. The inner wall of the pick-up and drop hole is provided with a groove and a insertion hole. A plunger is installed in the pick-up and drop hole, and a protrusion is fixed on the plunger. The protrusion slides in the groove. The upper end of the plunger is provided with four sets of sliding grooves, and a rod slides in the sliding grooves. When it is necessary to replace the rolling element, the rotating rod is rotated by using an Allen wrench to rotate the rotating plate and drive the four sets of rods to be pulled out from the insertion hole. The plunger can be removed from the pick-up and drop hole, which facilitates the pick-up and drop of the rolling element. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0024] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0025] In the attached diagram:

[0026] Figure 1 A schematic diagram of the overall structure of the bearing structure of a scroll compressor according to this application is shown;

[0027] Figure 2 A disassembled structural diagram of the bearing structure of a scroll compressor according to this application is shown;

[0028] Figure 3 A schematic diagram of the bearing outer ring of a scroll compressor bearing structure according to this application is shown;

[0029] Figure 4 This application illustrates a bearing structure for a scroll compressor. Figure 3 A magnified structural diagram of part A in the middle;

[0030] Figure 5 This application illustrates a bearing structure for a scroll compressor. Figure 2A magnified structural diagram of part B in the middle section;

[0031] Figure 6 A schematic diagram of the cylinder of a scroll compressor bearing structure according to this application is shown;

[0032] Figure 7 A schematic diagram of the welding seat of the bearing structure of a scroll compressor according to this application is shown;

[0033] Figure 8 This application illustrates a bearing structure for a scroll compressor. Figure 7 A magnified structural diagram of section C;

[0034] Figure 9 A schematic diagram of the plunger structure of a scroll compressor bearing structure according to this application is shown.

[0035] List of reference numerals

[0036] 1. Bearing outer ring; 11. Groove No. 1; 12. Mounting groove; 13. Pick-up and drop hole; 131. Insertion hole; 132. Slot; 14. Plunger; 141. Protrusion; 142. Insert rod; 143. Rotating plate; 1431. Spring steel; 1432. Rotating rod; 144. Top cover;

[0037] 2. Bearing inner ring; 21. No. 2 groove; 22. Rolling element; 23. Cage;

[0038] 3. Baffle; 31. Fixed seat; 311. Rotating handle; 32. Cylinder body; 321. Cylinder cover; 322. Cylinder rod; 3221. Stop block; 3222. Oil outlet hole; 3223. Conical spring; 33. Welding seat; 331. Buffer plate; 332. Guide rod; 333. Coating roller; 334. Side plate. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0040] Example 1: Please refer to Figures 1 to 9 :

[0041] This utility model proposes a bearing structure for a scroll compressor, including: a bearing outer ring 1;

[0042] An inner ring 2 is disposed inside the outer ring 1 of the bearing. A first groove 11 and a second groove 21 are respectively provided on the outer ring 1 and the inner ring 2. A rolling element 22 rolls between the first groove 11 and the second groove 21, and two sets of cages 23 are mounted on the rolling element 22. The rolling element 22 is located between the two sets of cages 23. A pick-and-place hole 13 is provided on the outer ring 1. A slot 132 and an insertion hole 131 are provided on the inner wall of the pick-and-place hole 13. A plunger 14 is installed in the pick-and-place hole 13, and a protrusion 141 is fixed on the plunger 14. Block 141 slides in slot 132. The upper end of plunger 14 is provided with four sets of sliding grooves. Insert rod 142 slides in the sliding grooves and is inserted into insertion hole 131. A top cover 144 is fixed to the upper end of plunger 14. A rotating plate 143 rotates between top cover 144 and plunger 14. Spring steel 1431 is connected between rotating plate 143 and the four sets of insert rods 142. A rotating rod 1432 is fixed on rotating plate 143. The upper end of rotating rod 1432 is provided with an internal hexagonal groove. A through hole is provided on top cover 144.

[0043] In this embodiment of the disclosure,

[0044] Two sets of mounting grooves 12 are provided on the outer ring 1 of the bearing. A baffle 3 is installed in the mounting groove 12. The baffle 3 is located between the outer ring 1 and the inner ring 2 of the bearing. A fixing seat 31 is fixed on the baffle 3. A rotating handle 311 is rotatably mounted on the fixing seat 31. Its function is to prevent dust.

[0045] Example 2, based on Example 1,

[0046] A cylinder 32 is fixed on the baffle 3. Inside the cylinder 32, a cylinder rod 322 is movable. The cylinder rod 322 is a hollow structure. A stop block 3221 is fixed on the cylinder rod 322. A conical spring 3223 is movably sleeved on the cylinder rod 322. An oil outlet hole 3222 is provided on the cylinder rod 322. A cylinder cover 321 is fixed on the cylinder 32. A through hole is provided on the cylinder cover 321. The cylinder rod 322 slides in the through hole on the cylinder cover 321. Its function is: when lubricating the rolling element 22, the oil injector is inserted into the cylinder rod 322 and pressure is applied to the cylinder rod 322, so that the oil outlet hole 3222 is pushed out from the cylinder cover 321. At this time, the lubricating oil can flow out from the oil outlet hole 3222 onto the rolling element 22.

[0047] Example 3, based on Examples 1 and 2,

[0048] A welding seat 33 is fixed on the baffle 3, and a buffer plate 331 is installed on the welding seat 33. Four sets of guide rods 332 are arranged between the buffer plate 331 and the welding seat 33. Springs are sleeved on the guide rods 332. Side plates 334 are bolted to the upper and lower ends of the buffer plate 331. A coating roller 333 is installed between the two sets of side plates 334 through a bearing. Its function is to squeeze the rotating handle 311 and shake the baffle 3 to make it rotate, so that the lubricating oil on the rolling body 22 can be evenly spread through the coating roller 333.

[0049] The working principle of this embodiment is as follows: When lubricating the rolling element 22, the oil injector is inserted into the cylinder rod 322 and pressure is applied to the cylinder rod 322, so that the oil outlet 3222 is pushed out from the cylinder cover 321. At this time, the lubricating oil can flow out from the oil outlet 3222 onto the rolling element 22. The rotating handle 311 is pinched and the baffle 3 is shaken to make it rotate. The lubricating oil on the rolling element 22 can be spread evenly by the spreading roller 333. When the rolling element 22 needs to be replaced, the rotating rod 1432 is rotated by the Allen wrench, so that the rotating plate 143 rotates and drives the four sets of insert rods 142 to be pulled out from the insert hole 131. The plunger 14 can be taken out from the pick-up and drop hole 13, which facilitates the pick-up and drop of the rolling element 22.

[0050] The following points should be noted in this article:

[0051] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0052] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0053] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A bearing structure for a scroll compressor, comprising: The bearing outer ring (1) is characterized in that, The bearing outer ring (1) is provided with a bearing inner ring (2). The bearing outer ring (1) and the bearing inner ring (2) are respectively provided with a first groove (11) and a second groove (21). A rolling element (22) rolls between the first groove (11) and the second groove (21), and two sets of cages (23) are installed on the rolling element (22). The rolling element (22) is located between the two sets of cages (23). The bearing outer ring (1) is provided with a pick-and-place hole (13). The inner wall of the pick-and-place hole (13) is provided with a slot (132) and a insertion hole (131). A plunger (14) is installed in the pick-and-place hole (13). A protrusion (1) is fixed on the plunger (14). 41) The protrusion (141) slides in the slot (132). The upper end of the plunger (14) is provided with four sets of sliding grooves. The insertion rod (142) slides in the sliding grooves. The insertion rod (142) is inserted into the insertion hole (131). The upper end of the plunger (14) is fixed with a top cover (144). A rotating plate (143) rotates between the top cover (144) and the plunger (14). Spring steel (1431) is connected between the rotating plate (143) and the four sets of insertion rods (142). A rotating rod (1432) is fixed on the rotating plate (143). The upper end of the rotating rod (1432) is provided with an internal hexagonal groove. The top cover (144) is provided with a through hole.

2. The bearing structure of a scroll compressor according to claim 1, characterized in that, The outer ring (1) of the bearing is provided with two sets of mounting grooves (12), and a baffle (3) is installed in the mounting groove (12). The baffle (3) is located between the outer ring (1) and the inner ring (2) of the bearing.

3. The bearing structure of a scroll compressor according to claim 2, characterized in that, A fixed seat (31) is fixed on the baffle (3), and a rotating handle (311) is rotatably mounted on the fixed seat (31).

4. The bearing structure of a scroll compressor according to claim 3, characterized in that, A cylinder (32) is fixed on the baffle (3), and a cylinder rod (322) moves inside the cylinder (32). The cylinder rod (322) is a hollow structure.

5. The bearing structure of a scroll compressor according to claim 4, characterized in that, A stop block (3221) is fixed on the cylinder (322), and a conical spring (3223) is movably sleeved on the cylinder (322).

6. The bearing structure of a scroll compressor according to claim 5, characterized in that, The cylinder rod (322) is provided with an oil outlet hole (3222), and the cylinder body (32) is fixed with a cylinder cover (321). The cylinder cover (321) is provided with a through hole, and the cylinder rod (322) slides in the through hole on the cylinder cover (321).

7. The bearing structure of a scroll compressor according to claim 4, characterized in that, A welding seat (33) is fixed on the baffle (3), a buffer plate (331) is installed on the welding seat (33), four sets of guide rods (332) are arranged between the buffer plate (331) and the welding seat (33), and springs are sleeved on the guide rods (332). Side plates (334) are bolted to the upper and lower ends of the buffer plate (331), and an applicator roller (333) is installed between the two sets of side plates (334) through a bearing.

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