A double row tapered roller bearing
By setting up protective devices on the outer ring of the double-row tapered roller bearing, including oil injection holes, cavity, oil outlet holes and cover plates, the problem that the oil injection holes are easily blocked by dust is solved, and the convenience of adding lubricant oil and the extension of the bearing service life is achieved.
Patent Information
- Application Number
- CN202421107601.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-05-21
AI Technical Summary
After long-term use of existing double-row tapered roller bearings, the oil injection hole is easily blocked by dust, resulting in inconvenient addition of lubricating oil and reduced bearing service life.
A double-row tapered roller bearing is designed, and a protective device is provided on the arc surface of the outer ring of the bearing, including an oil injection hole, a cavity, an oil outlet hole and a cover plate. The cover plate is slidly connected through the slide chute, which makes it easier for workers to open the oil filling hole to add lubricating oil when needed, and cover the cover plate when not in use to prevent dust from entering.
The protective device effectively prevents dust from blocking the oil injection hole, making it convenient for staff to add lubricating oil and extends the service life of the bearing.
Smart Images
Figure CN222731932U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearings, in particular to a double-row tapered roller bearing. Background Art
[0002] Tapered roller bearings are separable bearings, and both the inner and outer rings of the bearings have tapered raceways. This type of bearing is divided into single-row, double-row and four-row tapered roller bearings according to the number of rows of rollers installed. Single-row tapered roller bearings can withstand radial loads and axial loads in a single direction. Double-row new double-row tapered roller bearings can withstand large combined axial and radial loads and have strong rigidity.
[0003] In order to ensure the flexibility of the roller rotation inside the bearing in the prior art, lubricating oil is generally injected into the bearing through the oil filling hole. However, after long-term use, dust in the air can easily block the oil filling hole, which brings inconvenience to the staff in injecting lubricating oil and reduces the service life of the bearing. Utility Model Content
[0004] The utility model provides a double-row tapered roller bearing to solve the shortcomings in the prior art.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a double-row tapered roller bearing, comprising a bearing outer ring, a bearing inner ring is arranged inside the bearing outer ring, a plurality of roller bodies are evenly arranged between the bearing outer ring and the bearing inner ring, a protective device is provided on the arc surface of the bearing outer ring, the protective device comprises an oil filling hole, the oil filling hole is arranged on the arc surface of the bearing outer ring, a cavity is arranged inside the bearing outer ring, a plurality of oil outlet holes are evenly arranged on the bearing outer ring with the aid of the cavity, the oil filling hole is connected with the cavity, a slide groove is arranged on the bearing outer ring corresponding to the oil filling hole, the bearing outer ring is slidably connected with a cover plate with the aid of the slide groove, and the size of the cover plate is larger than the size of the oil filling hole.
[0006] The effect achieved by the above-mentioned components is: when it is necessary to inject lubricating oil into the cavity inside the outer ring of the bearing through the oil filling hole, first move the cover plate, the cover plate enters the slide groove, and the oil filling hole under the cover plate is exposed. At this time, the staff pours the lubricating oil from the oil filling hole into the cavity of the outer ring of the bearing. After pouring the lubricating oil, move the cover plate again, and the cover plate covers the oil filling hole, thereby achieving the effect of protecting the oil filling hole. The lubricating oil drips onto the roller body through the oil outlet hole, thereby achieving the effect of lubricating the roller body. The protective device achieves the effect of protecting the oil filling hole, preventing dust from clogging the oil filling hole, which makes it inconvenient for the staff to add lubricating oil and reduces the service life of the bearing.
[0007] Preferably, a pull plate is fixedly connected to the upper surface of the cover plate, and the surface of the pull plate is provided with anti-slip grooves.
[0008] The effect achieved by the above components is: by setting the pull plate, it is convenient for the staff to move the cover plate, which brings convenience to the staff.
[0009] Preferably, two mutually symmetrical springs are fixedly connected to one side of the cover plate, and one end of the spring is fixedly connected to the inner wall of the slide groove.
[0010] The effect achieved by the above components is: when the cover moves into the slide groove, the spring contracts, and after the lubricating oil is injected, the cover is released, and under the action of the spring return force, the cover blocks the oil injection hole again, bringing convenience to the staff.
[0011] Preferably, a sealing ring is fixedly connected to the bottom of the cover plate, and the sealing ring is a rubber ring.
[0012] The effect achieved by the above components is: by setting the sealing ring, the gap between the cover plate and the outer ring of the bearing is sealed, thereby improving the sealing effect of the cover plate.
[0013] Preferably, auxiliary devices are provided on both sides of the outer ring of the bearing, and the auxiliary devices include two protective plates, which are respectively arranged on both sides of the outer ring of the bearing. Two symmetrical positioning rods are fixedly connected to one side of the protective plate close to the outer ring of the bearing. Positioning grooves are provided on the outer ring of the bearing corresponding to the positioning rods, and the size of the positioning rods is matched with the size of the positioning grooves.
[0014] The effect achieved by the above-mentioned components is: when the protective plate needs to be installed, the protective plate is moved first, and the protective plate with the positioning rod is inserted into the positioning groove of the outer ring of the bearing, thereby achieving the effect of fixing the protective plate. The protective plate set by the auxiliary device achieves the effect of protecting the gap between the outer ring of the bearing and the inner ring of the bearing, thereby preventing impurities from entering between the outer ring of the bearing and the inner ring of the bearing, thereby affecting the normal rotation of the roller body.
[0015] Preferably, a pointed protrusion is fixedly connected to one end of the positioning rod away from the protective plate, and the tip of the pointed protrusion is away from the positioning rod.
[0016] The effect achieved by the above-mentioned components is that the sharp protrusion makes it convenient for the staff to insert the positioning rod into the positioning groove of the outer ring of the bearing, which brings convenience to the staff.
[0017] Preferably, two mutually symmetrical grooves are formed on a side of the protective plate away from the outer ring of the bearing, and the protective plate is fixedly connected to the rectangular plate by means of the grooves.
[0018] The effect achieved by the above components is: the rectangular plate in the groove makes it easy for the staff to move the protective plate, bringing convenience to the staff.
[0019] Preferably, a rubber ring is fixedly connected to the arc surface of the positioning rod, and a groove is provided on the outer ring of the bearing corresponding to the rubber ring, and the size of the groove is matched with the size of the rubber ring.
[0020] The effect achieved by the above-mentioned components is: when the positioning rod enters the positioning groove, the inner wall of the positioning groove squeezes the rubber ring on the positioning rod, and the rubber ring is deformed. When the rubber ring moves to the position of the slot, the rubber ring returns to its original shape and enters the slot, thereby achieving the effect of fixing the positioning rod and preventing the positioning rod from detaching from the positioning groove.
[0021] In summary, the beneficial effects of the utility model are:
[0022] When it is necessary to inject lubricating oil into the cavity inside the outer ring of the bearing through the oil filling hole, first move the cover plate, the cover plate enters the slide groove, and the oil filling hole under the cover plate is exposed. At this time, the staff pours the lubricating oil from the oil filling hole into the cavity of the outer ring of the bearing. After pouring the lubricating oil, move the cover plate again, the cover plate covers the oil filling hole, thereby achieving the effect of protecting the oil filling hole. The lubricating oil drips onto the roller body through the oil outlet hole, thereby achieving the effect of lubricating the roller body. The protective device achieves the effect of protecting the oil filling hole to prevent dust from clogging the oil filling hole, which makes it inconvenient for the staff to add lubricating oil and reduces the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0024] Figure 2 For this utility model Figure 1 Exploded diagram of
[0025] Figure 3 It is a vertical cross-sectional view of the outer ring of the bearing of the utility model;
[0026] Figure 4 For this utility model Figure 3 A magnified image of point A;
[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the cover plate of the utility model;
[0028] Figure 6 It is a transverse cross-sectional view of the outer ring of the bearing of the utility model;
[0029] Figure 7 It is a three-dimensional structural schematic diagram of the protective plate of the utility model;
[0030] Figure 8 For this utility model Figure 7 A schematic diagram of the three-dimensional structure on the other side;
[0031] Fig. 9 For this utility model Figure 8 Enlarged view of point B.
[0032] Legend: 1. Bearing outer ring; 2. Bearing inner ring; 3. Roller body; 4. Protective device; 41. Oil filling hole; 42. Cavity; 43. Oil outlet hole; 44. Slide groove; 45. Cover plate; 46. Pull plate; 47. Spring; 48. Sealing ring; 5. Auxiliary device; 51. Protective plate; 52. Positioning rod; 53. Positioning groove; 54. Groove; 55. Rectangular plate; 56. Protrusion; 57. Rubber ring; 58. Slot. DETAILED DESCRIPTION
[0033] Reference Figure 1-9 As shown, this embodiment discloses a double-row tapered roller bearing, including a bearing outer ring 1, a bearing inner ring 2 is arranged inside the bearing outer ring 1, a plurality of roller bodies 3 are evenly arranged between the bearing outer ring 1 and the bearing inner ring 2, a protective device 4 is provided on the arc surface of the bearing outer ring 1, and auxiliary devices 5 are provided on both sides of the bearing outer ring 1.
[0034] Reference Figure 1-9 As shown, the protective device 4 includes an oil filling hole 41, which is opened on the arc surface of the bearing outer ring 1. A cavity 42 is opened inside the bearing outer ring 1. The bearing outer ring 1 is evenly opened with a plurality of oil outlet holes 43 by means of the cavity 42. The oil filling hole 41 is connected with the cavity 42. A slide groove 44 is opened at the bearing outer ring 1 corresponding to the oil filling hole 41. The bearing outer ring 1 is slidably connected with a cover plate 45 by means of the slide groove 44. The size of the cover plate 45 is larger than the size of the oil filling hole 41. When it is necessary to inject lubricating oil into the cavity 42 inside the bearing outer ring 1 through the oil filling hole 41, the cover plate 45 is first moved, and the cover plate 45 enters the slide groove 44, and the oil filling hole 41 below the cover plate 45 is exposed. At this time, the staff pours the lubricating oil from the oil filling hole 41 into the cavity 42 of the bearing outer ring 1. After pouring the lubricating oil, the cover plate 45 is moved again, and the cover plate 45 covers the oil filling hole 41, thereby achieving the effect of protecting the oil filling hole 41. The lubricating oil drips onto the roller body 3 through the oil outlet hole 43, thereby achieving the effect of lubricating the roller body 3. The protective device 4 achieves the effect of protecting the oil filling hole 41 to prevent dust from blocking the oil filling hole 41, which makes it inconvenient for the staff to add lubricating oil and reduces the service life of the bearing.
[0035] Reference Figure 1-9As shown, the upper surface of the cover plate 45 is fixedly connected with a pull plate 46, and the surface of the pull plate 46 is provided with anti-slip grooves. By setting the pull plate 46, the effect of facilitating the staff to move the cover plate 45 is achieved, which brings convenience to the staff. Two mutually symmetrical springs 47 are fixedly connected to one side of the cover plate 45, and one end of the spring 47 is fixedly connected to the inner wall of the slide groove 44. When the cover plate 45 moves into the slide groove 44, the spring 47 contracts. After the lubricating oil is filled, the cover plate 45 is released. Under the action of the resetting elastic force of the spring 47, the cover plate 45 blocks the oil filling hole 41 again, which brings convenience to the staff. The bottom of the cover plate 45 is fixedly connected with a sealing ring 48, and the sealing ring 48 is a rubber ring 57. By setting the sealing ring 48, the effect of sealing the gap between the cover plate 45 and the outer ring 1 of the bearing is achieved, thereby improving the sealing effect of the cover plate 45.
[0036] Reference Figure 1-9 As shown, the auxiliary device 5 includes two protective plates 51, which are respectively arranged on both sides of the bearing outer ring 1. Two mutually symmetrical positioning rods 52 are fixedly connected to the side of the protective plate 51 close to the bearing outer ring 1. Positioning grooves 53 are provided at the positions of the bearing outer ring 1 corresponding to the positioning rods 52, and the size of the positioning rods 52 matches the size of the positioning grooves 53. When the protective plate 51 needs to be installed, the protective plate 51 is first moved, and the protective plate 51 is inserted into the positioning groove 53 of the bearing outer ring 1 with the positioning rods 52, so as to achieve the effect of fixing the protective plate 51. The protective plate 51 arranged by the auxiliary device 5 achieves the effect of protecting the gap between the bearing outer ring 1 and the bearing inner ring 2, so as to prevent impurities from entering between the bearing outer ring 1 and the bearing inner ring 2, thereby affecting the normal rotation of the roller body 3.
[0037] Reference Figure 1-9 As shown, the end of the positioning rod 52 away from the protective plate 51 is fixedly connected with a sharp protrusion 56, and the tip of the sharp protrusion 56 is away from the positioning rod 52. The provision of the sharp protrusion 56 facilitates the staff to insert the positioning rod 52 into the positioning groove 53 of the bearing outer ring 1, which brings convenience to the staff. Two mutually symmetrical grooves 54 are provided on the side of the protective plate 51 away from the bearing outer ring 1, and the protective plate 51 is fixedly connected with a rectangular plate 55 by means of the grooves 54. The rectangular plate 55 in the groove 54 achieves the effect of facilitating the staff to move the protective plate 51, which brings convenience to the staff. The arc surface of the positioning rod 52 is fixedly connected with a rubber ring 57, and a slot 58 is provided at the outer ring 1 of the bearing corresponding to the rubber ring 57, and the size of the slot 58 is adapted to the size of the rubber ring 57. When the positioning rod 52 enters the positioning groove 53, the inner wall of the positioning groove 53 squeezes the rubber ring 57 on the positioning rod 52, and the rubber ring 57 is deformed. When the rubber ring 57 moves to the position of the card slot 58, the rubber ring 57 returns to its original shape and enters the card slot 58, thereby achieving the effect of fixing the positioning rod 52 and preventing the positioning rod 52 from escaping from the positioning groove 53.
[0038] Working principle: when it is necessary to inject lubricating oil into the cavity 42 inside the bearing outer ring 1 through the oil filling hole 41, first move the cover plate 45 through the pull plate 46, the cover plate 45 enters the slide groove 44, the spring 47 contracts, and the oil filling hole 41 under the cover plate 45 is exposed. At this time, the staff pours the lubricating oil from the oil filling hole 41 into the cavity 42 of the bearing outer ring 1. After pouring the lubricating oil, release the pull plate 46. Under the action of the restoring force of the spring 47, the cover plate 45 covers the oil filling hole 41, thereby achieving the effect of protecting the oil filling hole 41. The lubricating oil drips onto the roller body 3 through the oil outlet 43, thereby achieving the effect of lubricating the roller body 3. The protective device 4 achieves the effect of protecting the oil filling hole 41 to prevent dust from blocking the oil filling hole 41, which makes it inconvenient for the staff to add lubricating oil and reduces the service life of the bearing.
[0039] When it is necessary to install the protective plate 51, first move the protective plate 51 through the rectangular plate 55 in the groove 54, and insert the protective plate 51 with the positioning rod 52 into the positioning groove 53 of the bearing outer ring 1 with the help of the pointed protrusion 56. At this time, the inner wall of the positioning groove 53 squeezes the rubber ring 57 on the positioning rod 52, and the rubber ring 57 is deformed. When the rubber ring 57 moves to the position of the card groove 58, the rubber ring 57 returns to its original shape and enters the card groove 58, thereby achieving the effect of fixing the positioning rod 52 and preventing the positioning rod 52 from escaping from the positioning groove 53. The protective plate 51 set by the auxiliary device 5 achieves the effect of protecting the gap between the bearing outer ring 1 and the bearing inner ring 2, preventing impurities from entering between the bearing outer ring 1 and the bearing inner ring 2, thereby affecting the normal rotation of the roller body 3.
Claims
1. A double-row tapered roller bearing, comprising a bearing outer ring (1), characterized in that: A bearing inner ring (2) is arranged inside the bearing outer ring (1), and a plurality of roller bodies (3) are evenly arranged between the bearing outer ring (1) and the bearing inner ring (2). A protective device (4) is arranged on the arc surface of the bearing outer ring (1), and the protective device (4) comprises an oil filling hole (41). The oil filling hole (41) is arranged on the arc surface of the bearing outer ring (1). A cavity (42) is arranged inside the bearing outer ring (1), and a plurality of oil outlet holes (43) are evenly arranged on the bearing outer ring (1) by means of the cavity (42). The oil filling hole (41) is connected to the cavity (42). A sliding groove (44) is arranged on the bearing outer ring (1) corresponding to the oil filling hole (41). The bearing outer ring (1) is slidably connected to a cover plate (45) by means of the sliding groove (44), and the size of the cover plate (45) is larger than the size of the oil filling hole (41).
2. A double row tapered roller bearing according to claim 1, characterized in that: A pull plate (46) is fixedly connected to the upper surface of the cover plate (45), and the surface of the pull plate (46) is provided with anti-slip grooves.
3. A double row tapered roller bearing according to claim 1, characterized in that: Two mutually symmetrical springs (47) are fixedly connected to one side of the cover plate (45), and one end of the spring (47) is fixedly connected to the inner wall of the slide groove (44).
4. A double row tapered roller bearing according to claim 1, characterized in that: A sealing ring (48) is fixedly connected to the bottom of the cover plate (45), and the sealing ring (48) is a rubber ring (57).
5. A double row tapered roller bearing according to claim 1, characterized in that: Auxiliary devices (5) are provided on both sides of the bearing outer ring (1), and the auxiliary devices (5) include two protective plates (51). The two protective plates (51) are respectively arranged on both sides of the bearing outer ring (1), and two mutually symmetrical positioning rods (52) are fixedly connected to one side of the protective plate (51) close to the bearing outer ring (1). Positioning grooves (53) are provided on the bearing outer ring (1) corresponding to the positioning rods (52), and the size of the positioning rods (52) is adapted to the size of the positioning grooves (53).
6. A double row tapered roller bearing according to claim 5, characterized in that: One end of the positioning rod (52) away from the protection plate (51) is fixedly connected with a pointed protrusion (56), and the tip of the pointed protrusion (56) is away from the positioning rod (52).
7. A double row tapered roller bearing according to claim 5, characterized in that: Two mutually symmetrical grooves (54) are provided on a side of the protection plate (51) away from the bearing outer ring (1), and the protection plate (51) is fixedly connected to a rectangular plate (55) by means of the grooves (54).
8. A double row tapered roller bearing according to claim 5, characterized in that: The arc surface of the positioning rod (52) is fixedly connected to a rubber ring (57), and a slot (58) is provided on the outer ring of the bearing (1) corresponding to the rubber ring (57), and the size of the slot (58) is matched with the size of the rubber ring (57).