Assembly bearing and manufacturing process thereof

Abstract

The invention relates to the field of rolling bearing manufacturing, in particular to an assembly bearing and a manufacturing process thereof. An assembly bearing comprises an outer ring, an inner ring is arranged on the inner side of the outer ring, annular grooves are formed in the inner periphery of the outer ring and the outer periphery of the inner ring, a plurality of rolling beads are arranged between the outer ring and the inner ring and arranged in the annular grooves in the outer ring and the inner ring, retainers are arranged on the upper sides and the lower sides of the rolling beads, and the retainers are arranged in the annular grooves in the outer ring and the inner ring. A plurality of arc-shaped grooves corresponding to the rolling beads are formed in the retainer, and the rolling beads are inserted into the corresponding arc-shaped grooves. A manufacturing process of the assembly bearing manufacturing device for manufacturing the bearing comprises the following steps that S1, an outer ring is clamped between the two arc plates; s2, the inner ring is placed on the upper side of the tray, and at the moment, the inner ring is located on the inner side of the outer ring; and S3, the inner ring is placed at the eccentric position of the outer ring, the gap between one side of the inner ring and one side of the outer ring is enlarged at the moment, and the multiple rolling balls are placed between the inner ring and the outer ring at the moment.

Description

Technical Field

[0001] The invention relates to the field of rolling bearing manufacturing, and more particularly to an assembled bearing and a manufacturing process thereof. Background Art

[0002] In the field of modern mechanical manufacturing, bearings, as key components, are widely used in various types of mechanical equipment. Their performance directly affects the operating stability and service life of the equipment. Rolling bearings have become the first choice for many mechanical equipment due to their advantages such as low friction resistance, sensitive start-up, high efficiency, and good precision retention. At present, in the manufacturing process of rolling bearings, it has always been a difficult problem that plagues the industry to accurately and conveniently place multiple rolling balls between the outer ring and the inner ring. Traditional processes usually use manual assembly. During manual assembly, workers need to place the rolling balls one by one between the raceways of the inner and outer rings. This process is not only cumbersome to operate, but also requires high technical proficiency and patience of workers. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides an assembled bearing and a manufacturing process thereof, which has the beneficial effect of facilitating the placement of multiple rolling balls between an outer ring and an inner ring through the manufacturing process of the bearing.

[0004] An assembled bearing comprises an outer ring, an inner ring is arranged on the inner side of the outer ring, annular grooves are arranged on the inner circumference of the outer ring and the outer circumference of the inner ring, a plurality of rolling balls are arranged between the outer ring and the inner ring, the plurality of rolling balls are arranged in the annular grooves on the outer ring and the inner ring, retaining frames are arranged on the upper and lower sides of the plurality of rolling balls, a plurality of arc-shaped grooves corresponding to the rolling balls are arranged on the retaining frames, and the rolling balls are inserted into the corresponding arc-shaped grooves.

[0005] A manufacturing process for manufacturing a bearing using an assembled bearing manufacturing device comprises the following steps: S1: Clamp the outer ring between two arc plates; S2: Place the inner ring on the upper side of the tray, so that the inner ring is located inside the outer ring; S3: The inner ring is placed at an eccentric position of the outer ring. At this time, the gap on one side of the inner ring and the outer ring becomes larger. At this time, multiple rolling balls are placed between the inner ring and the outer ring. S4: Use two elastic strips on the tray to clamp the inner circumference of the inner ring, drive the tray to rotate and drive the inner ring to rotate, so that multiple rolling balls are evenly distributed between the outer ring and the inner ring; S5: Two retaining frames are installed on the upper and lower sides of the plurality of rolling balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0007] Figure 1Schematic diagram of a structure for assembling a bearing Figure 1 ; Figure 2 Schematic diagram of a structure for assembling a bearing Figure 2 ; Figure 3 Schematic diagram of a structure for assembling a bearing Figure 3 ; Figure 4 Schematic diagram of a manufacturing device for assembling a bearing and a structure for assembling a bearing; Figure 5 Schematic diagram of a structure of a manufacturing device for assembling a bearing Figure 1 ; Figure 6 Schematic diagram of a structure of a manufacturing device for assembling a bearing Figure 2 ; Figure 7 Schematic diagram of a structure of a manufacturing device for assembling a bearing Figure 3 ; Figure 8 Schematic diagram of the structure of a cross bar and a round seat Figure 1 ; Figure 9 Schematic diagram of the structure of a cross bar and a round seat Figure 2 ; Figure 10 Schematic diagram of the structure of a tray Figure 1 ; Figure 11 Schematic diagram of the structure of a tray Figure 2 ; In the figure: cross bar 101; lifting bar 102; side column 103; arc plate 104; support leg 105; circular ring 106; convex plate 107; round seat 201; limit fork 202; motor 203; motor bracket 204; spring 205; tray 301; spacer bar 302; elastic bar 303; middle seat 304; bottom ring 305; vertical rod 306; side ear 307; rubber cylinder 308; outer ring 401; inner ring 402; cage 403; threaded cylinder 404; rolling ball 405. Detailed implementation method

[0008] As Figures 1-3 shown; Since the assembled bearing includes an outer ring 401, an inner ring 402 is arranged on the inner side of the outer ring 401. Annular grooves are arranged on both the inner circumference of the outer ring 401 and the outer circumference of the inner ring 402. A plurality of rolling beads 405 are arranged between the outer ring 401 and the inner ring 402. The plurality of rolling beads 405 are arranged in the annular grooves on the outer ring 401 and the inner ring 402. Cage 403 is arranged on both the upper side and the lower side of the plurality of rolling beads 405. A plurality of arc-shaped grooves corresponding to the rolling beads 405 are arranged on the cage 403, and the rolling beads 405 are inserted into the corresponding arc-shaped grooves; The rolling beads 405 located in the annular grooves on the inner circumference of the outer ring 401 and the outer circumference of the inner ring 402 play a key role in reducing friction. When the inner ring 402 and the outer ring 401 start to move relative to each other, the rolling beads 405 will roll between the two rings. Compared with sliding friction, this rolling motion is highly efficient in reducing friction.

[0009] Cages 403 are arranged on both the upper and lower sides of the rolling beads 405. Each cage 403 has a plurality of arc-shaped grooves corresponding to the rolling beads 405, and the rolling beads 405 are embedded in these arc-shaped grooves. The cage 403 can prevent the rolling beads 405 from randomly colliding with each other and ensure their uniform distribution in the space between the inner ring 402 and the outer ring 401. This uniform distribution makes the load distribution on the bearing more uniform, thereby enhancing its load-bearing capacity and running stability. Through the combined action of the inner ring 402, the outer ring 401, the rolling beads 405 and the cage 403, the bearing can achieve smooth relative rotation between two connected components, reduce energy loss caused by friction, and ensure the normal operation of mechanical equipment. As Figures 1-3 shown; Since a plurality of threaded cylinders 404 are fixed on the opposite surfaces of the two cages 403, the opposite two threaded cylinders 404 are connected by bolts.

[0010] On the opposite surfaces of the two cages 403, a plurality of threaded cylinders 404 are fixed, and the opposite two threaded cylinders 404 are connected by bolts. This structure further stabilizes the relative positions of the cages 403. During the operation of the bearing, even under complex and variable external forces, through the tight connection of the bolts and the threaded cylinders 404, it can effectively prevent the two cages 403 from being misaligned or displaced, so that the cage 403 always stably confines the rolling beads 405 in the proper position, continuously ensuring the uniform distribution of the rolling beads 405, and further enabling the bearing to maintain good load-bearing capacity and running stability under various working conditions, ensuring the normal operation of mechanical equipment.

[0011] As Figures 8-9 shown; Since an assembly bearing manufacturing device includes two arc plates 104 which are arranged opposite to each other left and right, side columns 103 are welded to the outer sides of the two arc plates 104. The two side columns 103 are respectively connected to the upper parts of the two lifting bars 102 in a horizontal sliding manner, and the side columns 103 are driven to slide by hydraulic cylinders. The two side columns 103 can slide left and right on the upper parts of the two lifting bars 102 respectively, thereby driving the two arc plates 104 to approach or move away from each other. When the two arc plates 104 approach each other, the outer ring 401 can be clamped and fixed, and after the outer ring 401 is fixed, it is convenient to install the inner ring 402 and multiple rolling beads 405 into the outer ring 401 in the next step.

[0012] As Figures 8-9 shown; Since the two lifting bars 102 are respectively connected to the left and right ends of the cross bar 101 in a vertical sliding manner, the two lifting bars 102 are both driven to lift by hydraulic cylinders. The two lifting bars 102 can lift and slide on the cross bar 101, thereby driving the two side columns 103 and the two arc plates 104 to lift, and then driving the outer ring 401 between the two arc plates 104 to lift, which is convenient for adjusting the height of the outer ring 401 and installing the inner ring 402 and multiple rolling beads 405 into the outer ring 401. As Figures 8-9 shown; Since legs 105 are connected to the left and right ends of the cross bar 101 by bolts. The two legs 105 support the cross bar 101, forming a space under the cross bar 101, which is convenient for the two lifting bars 102 to lift and slide on the cross bar 101.

[0013] As Figures 8-11 shown; Since a tray 301 is arranged in the middle of the upper side of the cross bar 101, a middle seat 304 is connected to the middle of the tray 301 by bolts, hydraulic cylinders are connected to the left and right sides of the middle seat 304 by flanges, two elastic strips 303 are connected to the upper side of the tray 301 by bolts, and the end parts of the two hydraulic cylinders are respectively fixed to the upper parts of the two elastic strips 303. The inner ring 402 can be placed on the upper side of the tray 301. At this time, the tray 301 can be located inside the outer ring 401. When the two hydraulic cylinders start to work and extend, they will respectively exert an outward force on the elastic strips 303 connected to them. Since the elastic strips 303 themselves have good elastic deformation ability, under the thrust of the hydraulic cylinders, the two elastic strips 303 will gradually deform outward. As the deformation continues, the elastic strips 303 continuously approach the left and right sides of the inner circumference of the inner ring 402 until they tightly clamp on the inner circumferential wall of the inner ring 402. In this way, the inner ring 402 is firmly fixed on the upper side of the tray 301. In the subsequent working process, once the tray 301 moves or rotates, since the inner ring 402 has been firmly clamped by the elastic strip 303, it will closely follow the tray 301 to move or rotate together. This facilitates the adjustment of the relative positions of the inner ring 402 and the outer ring 401.

[0014] As Figures 8-11 shown; Since a circular ring 106 is provided in the middle of the cross bar 101, a circular seat 201 is provided at the center of the circular ring 106, and a plurality of limiting forks 202 are fixed on the circular seat 201. The plurality of limiting forks 202 are all inserted on the circular ring 106. A motor bracket 204 is fixed on the lower side of the circular seat 201, and a motor 203 is fixed on the motor bracket 204. The output shaft of the motor 203 passes through the circular seat 201 and is fixed at the center of the lower side of the tray 301. The plurality of limiting forks 202 on the circular seat 201 can ensure that the circular seat 201 can move horizontally relative to the circular ring 106, and at the same time, the circular seat 201 will not displace vertically relative to the circular ring 106. At this time, it can be ensured that the tray 301 can move horizontally following the circular seat 201, and the tray 301 will not displace vertically relative to the circular ring 106. When a plurality of rolling beads 405 are added between the outer ring 401 and the inner ring 402, the tray 301 is moved horizontally so that the inner ring 402 is placed at an eccentric position of the outer ring 401. At this time, the gap on one side between the inner ring 402 and the outer ring 401 becomes larger. At this time, the plurality of rolling beads 405 can be placed between the inner ring 402 and the outer ring 401. Then, the motor 203 is driven to rotate to drive the tray 301 to rotate around the output shaft of the motor 203, thereby driving the inner ring 402 to rotate around the output shaft of the motor 203. With the relative rotation of the inner ring 402 and the outer ring 401, the plurality of rolling beads 405 are evenly dispersed between the outer ring 401 and the inner ring 402. At this time, the outer ring 401 and the inner ring 402 become coaxially arranged, and the assembly of the plurality of rolling beads 405 between the outer ring 401 and the inner ring 402 is completed.

[0015] As Figures 8-9 shown; Convex plates 107 are fixed at both the left and right ends of the lower side of the cross bar 101. One end of a spring 205 is fixed on each convex plate 107, and the other end of the spring 205 is fixed on the motor bracket 204. The two springs 205 apply a pulling force to the motor bracket 204, so that the motor bracket 204, the motor 203 and the circular seat 201 return to the center position of the circular ring 106 through the elastic force, thereby facilitating the tray 301 and the inner ring 402 to return to the center position of the circular ring 106. When the motor 203 rotates to drive the tray 301 to rotate around the output shaft of the motor 203, it is convenient to quickly make the outer ring 401 and the inner ring 402 become coaxially arranged through the elastic force of the two springs 205.

[0016] As Figures 10-11 shown; Since a bottom ring 305 is fixed to the lower side of the tray 301, a plurality of spacer bars 302 are annularly fixed to the upper side of the bottom ring 305. The plurality of spacer bars 302 are all vertically slidably connected to the tray 301. Side ears 307 are fixed to both the left and right ends of the bottom ring 305. Vertical rods 306 are fixed to both the left and right ends of the lower side of the tray 301. The two side ears 307 are respectively vertically slidably connected to the two vertical rods 306. Rubber cylinders 308 are arranged at the sliding connection positions of the side ears 307 and the vertical rods 306. The two side ears 307 can respectively vertically slide on the two vertical rods 306, thereby facilitating driving the bottom ring 305 and the plurality of spacer bars 302 to lift and lower simultaneously. The plurality of spacer bars 302 are usually located on the lower side of the tray 301. After the plurality of rolling beads 405 are evenly dispersed between the outer ring 401 and the inner ring 402, the plurality of spacer bars 302 are driven to be inserted between the plurality of rolling beads 405, so that there is a spacer bar 302 between every two adjacent rolling beads 405. At this time, the plurality of rolling beads 405 can be evenly spaced between the outer ring 401 and the inner ring 402. The rubber cylinders 308 between the side ears 307 and the vertical rods 306 increase the friction force, so that the side ears 307, the bottom ring 305 and the plurality of spacer bars 302 can be fixed at any height when they move; after the plurality of rolling beads 405 are evenly spaced between the outer ring 401 and the inner ring 402, the plurality of spacer bars 302 are moved downward so that the plurality of spacer bars 302 leave the plurality of rolling beads 405, and then the two lifting bars 102 and the two arc plates 104 are driven to rise to lift the bearing. At this time, a cage 403 is placed on the tray 301, and then the bearing is lowered so that the plurality of evenly distributed rolling beads 405 on the bearing respectively fall into the plurality of arc-shaped grooves on the cage 403. Then another cage 403 is placed on the upper side of the plurality of evenly distributed rolling beads 405. At this time, the plurality of threaded cylinders 404 on the two cages 403 are butted against each other. At this time, the upper and lower two threaded cylinders 404 in multiple groups are connected by bolts, and the two cages 403 can be installed on the upper and lower sides of the plurality of rolling beads 405 to complete the assembly of the bearing.

[0017] A manufacturing process of an assembly bearing manufacturing device for manufacturing bearings includes the following steps: S1: Clamp the outer ring 401 between the two arc plates 104; S2: Place the inner ring 402 on the upper side of the tray 301. At this time, the inner ring 402 is located inside the outer ring 401; S3: Make the inner ring 402 placed at an eccentric position of the outer ring 401. At this time, the gap on one side between the inner ring 402 and the outer ring 401 becomes larger. At this time, place the plurality of rolling beads 405 between the inner ring 402 and the outer ring 401; S4: Clamp the inner circumference of the inner ring 402 with two elastic strips 303 on the tray 301, drive the rotation of the tray 301 to drive the rotation of the inner ring 402, so that a plurality of rolling beads 405 are evenly dispersed between the outer ring 401 and the inner ring 402; S5: Install two cages 403 on the upper and lower sides of a plurality of rolling beads 405.

Claims

1. An assembled bearing includes an outer ring (401), characterized in that: An inner ring (402) is provided inside the outer ring (401). Ring grooves are provided on the inner circumference of the outer ring (401) and the outer circumference of the inner ring (402). A plurality of rolling beads (405) are provided between the outer ring (401) and the inner ring (402). The plurality of rolling beads (405) are arranged in the ring grooves on the outer ring (401) and the inner ring (402). Upper and lower sides of the plurality of rolling beads (405) are both provided with cages (403). The cage (403) is provided with a plurality of arc-shaped grooves corresponding to the rolling beads (405), and the rolling beads (405) are inserted into the corresponding arc-shaped grooves.

2. An assembled bearing according to claim 1, characterized in that: A plurality of threaded cylinders (404) are fixed on opposite surfaces of the two cages (403). The two opposite threaded cylinders (404) are connected by bolts.

3. An assembly bearing manufacturing device, comprising two arc plates (104), characterized in that: The two arc plates (104) are arranged opposite to each other left and right. Side columns (103) are fixed on the outer sides of the two arc plates (104). The two side columns (103) are respectively connected to the upper parts of the two lifting bars (102) in a horizontal sliding manner, and the side columns (103) are driven to slide by hydraulic cylinders.

4. An assembly bearing manufacturing device according to claim 3, characterized in that: The two lifting bars (102) are respectively connected to the left and right ends of the cross bar (101) in a vertical sliding manner, and the two lifting bars (102) are both driven to lift by hydraulic cylinders.

5. The manufacturing device for an assembled bearing according to claim 4, characterized in that: Legs (105) are fixed at the left and right ends of the cross bar (101).

6. The manufacturing device for an assembled bearing according to claim 5, characterized in that: A tray (301) is provided in the middle of the upper side of the cross bar (101). A middle seat (304) is fixed in the middle of the tray (301). Hydraulic cylinders are fixed on both the left and right sides of the middle seat (304). Two elastic strips (303) are fixed on the upper side of the tray (301). The ends of the two hydraulic cylinders are respectively fixed on the upper parts of the two elastic strips (303).

7. An assembly bearing manufacturing device according to claim 6, characterized in that: A ring (106) is provided in the middle of the cross bar (101). A circular seat (201) is provided at the center of the ring (106). A plurality of limiting forks (202) are fixed on the circular seat (201). The plurality of limiting forks (202) are all inserted into the ring (106). A motor bracket (204) is fixed on the lower side of the circular seat (201). A motor (203) is fixed on the motor bracket (204). The output shaft of the motor (203) passes through the circular seat (201) and is fixed at the center of the lower side of the tray (301).

8. An assembly bearing manufacturing device according to claim 7, characterized in that: Convex plates (107) are fixed at the left and right ends of the lower side of the cross bar (101). One end of a spring (205) is fixed on each convex plate (107), and the other end of the spring (205) is fixed on the motor bracket (204).

9. The assembling bearing manufacturing device according to claim 8, characterized in that: A bottom ring (305) is fixed on the lower side of the tray (301). A plurality of spacer bars (302) are fixed on the upper side of the bottom ring (305) in a ring shape. The plurality of spacer bars (302) are all connected to the tray (301) in a vertical sliding manner. Side ears (307) are fixed at the left and right ends of the bottom ring (305). Vertical rods (306) are fixed at the left and right ends of the lower side of the tray (301). The two side ears (307) are respectively connected to the two vertical rods (306) in a vertical sliding manner, and a rubber cylinder (308) is provided at the sliding connection position of the side ear (307) and the vertical rod (306).

10. A manufacturing process for manufacturing a bearing using the bearing assembly manufacturing device according to claim 9, characterized in that, Including the following steps: S1: Clamp the outer ring (401) between two arc plates (104); S2: Place the inner ring (402) on the upper side of the tray (301), at this time the inner ring (402) is located inside the outer ring (401); S3: Make the inner ring (402) placed at an eccentric position of the outer ring (401), at this time the gap on one side between the inner ring (402) and the outer ring (401) becomes larger, and then place a plurality of rolling beads (405) between the inner ring (402) and the outer ring (401); S4: Use two elastic strips (303) on the tray (301) to clamp the inner circumference of the inner ring (402), drive the tray (301) to rotate to drive the inner ring (402) to rotate, so that a plurality of rolling beads (405) are evenly dispersed between the outer ring (401) and the inner ring (402); S5: Install two cages (403) on the upper side and the lower side of a plurality of rolling beads (405).

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