A bearing lubrication and flow guide device for a vibratory roller

Abstract

The utility model provides a kind of road roller vibrating steel wheel bearing lubrication flow guide device, belong to road roller vibrating steel wheel bearing lubrication field, including vibrating wheel inner tube, lubrication vertical plate, lubrication deflector, bearing seat and eccentric shaft assembly;The lubrication vertical plate is multiple, and it is evenly distributed along the inner wall circumference of vibrating wheel inner tube;The lubrication deflector is fixedly connected with the lubrication vertical plate, and located in vibrating wheel inner tube, the two sides of the lubrication deflector are respectively equipped with the flanging that is bent upwards;The eccentric shaft assembly is installed in vibrating wheel inner tube by vibrating bearing and bearing seat.The utility model structure is simple, low in cost, can effectively solve the lubrication problem when vibrating road roller vibrating wheel bearing runs.

Description

Technical Field

[0001] This utility model relates to the field of lubrication of vibratory steel wheel bearings for road rollers, and in particular to a lubrication guiding device for vibratory steel wheel bearings for road rollers. Background Technology

[0002] As a core component of vibratory rollers, the vibratory roller bearing must withstand high-speed (typically above 1600 rpm, and even up to 3600 rpm) and high-load impact loads during operation. Reliable lubrication is crucial for the stable and long-term operation of this high-speed, heavy-duty bearing. Effective lubrication forms a sufficiently strong oil film between the rolling elements and raceways, separating the contact surfaces and preventing direct metal-to-metal contact, thus significantly reducing friction and wear. Simultaneously, the flow of lubricating oil carries away the frictional heat generated during high-speed operation, reducing the risk of bearing failure due to overheating.

[0003] Publication No. CN203948480U discloses a bearing lubrication device for use on the rollers of a road roller. The bearing lubrication device includes a guide mechanism and a second bearing housing. A guide port is formed on the circumference of the second bearing housing, and an oil passage is formed on the guide port. The guide mechanism is fixedly mounted on the guide port and guides the oil to the oil passage. With this bearing lubrication device, lubricating oil can enter the guide port from both ends of the guide mechanism, flow along the guide plate through the oil passage, and finally flow to the bearing, thus lubricating the bearing and extending its service life. On the other hand, this utility model also proposes a road roller including a roller with an inner ring. A bearing lubrication device is provided within the inner ring, and the bearing lubrication device is as described above.

[0004] Traditional vibratory rollers typically employ a combination of lubrication methods: circulating oil (via an oil pump or by machining several oil reservoirs in the bearing housing), splash lubrication, or a combination of circulating oil and splash lubrication. While forced circulation via an oil pump can effectively solve lubrication problems in general bearing operation, this approach requires an additional oil pump system (usually including a power unit, oil pump, filter, and piping), significantly increasing the equipment's manufacturing cost. Furthermore, the reliable operation of the lubrication pump system under high-frequency vibration presents a new risk. Machining oil reservoirs in the bearing housing and using the rolling of the steel wheel to carry the lubricating oil to a higher level before gravity falls can also solve the lubrication problem for vibratory bearings. However, the biggest drawback of this approach is cost control; it typically requires increasing the outer diameter of the bearing housing and reserving sufficient space for the oil reservoirs, significantly increasing the equipment's manufacturing cost. The biggest drawback of splash lubrication is the resulting oil mixing loss and the high requirement for oil level control; even slight deviations in the oil level can lead to increased heat generation or poor lubrication.

[0005] When a vibratory roller is in operation, the eccentric shaft assembly inside its vibratory drum rotates at high speed (typically >1600 rpm), causing the steel drum to vibrate at high frequency. The rolling bearings supporting this assembly bear extremely large alternating loads, requiring extremely high lubrication reliability.

[0006] Therefore, there is an urgent need for a self-circulating lubrication device that is simple in structure, low in cost, requires no external power, and can effectively avoid the heating caused by oil mixing. Utility Model Content

[0007] To overcome the problems of redundant structure, poor heat dissipation and difficult maintenance in existing systems, this utility model provides a lubrication guide device for the bearing of a vibratory steel wheel of a road roller. This utility model has a simple structure, low cost, requires no external power, and can effectively prevent oil mixing and heat generation, thus effectively solving the lubrication problem of the bearing of the vibratory wheel of a vibratory road roller during operation.

[0008] The technical solution adopted in this utility model is as follows: A lubrication and flow guiding device for a vibratory steel wheel bearing of a road roller includes an inner cylinder of the vibratory wheel, a lubrication vertical plate, a lubrication guide plate, a bearing seat, and an eccentric shaft assembly. Multiple lubrication vertical plates are evenly distributed along the circumferential direction of the inner wall of the vibratory wheel. The lubrication guide plate is fixedly connected to the lubrication vertical plate and located inside the inner cylinder of the vibratory wheel. The two sides of the lubrication guide plate are respectively provided with upwardly bent edges. The eccentric shaft assembly is installed inside the inner cylinder of the vibratory wheel via a vibratory bearing and a bearing seat.

[0009] The angle between the folded edge and the horizontal plane is 25°-30°.

[0010] The free end of the folded edge is provided with a V-shaped groove, the opening width of the V-shaped groove is no more than 21.5mm, and the bottom of the V-shaped groove is inclined at 15°-20° towards the bearing seat.

[0011] The bearing housing has multiple oblique holes and oblique guide grooves on its outer circumferential surface.

[0012] The oblique holes and oblique guide grooves are alternately distributed along the circumference of the bearing seat, and all are inclined in the same direction.

[0013] The diameter of the oblique hole is 8mm-10mm, and the radius of the oblique guide groove is 8mm-10mm.

[0014] Both the lubrication vertical plate and the lubrication guide plate are made of carbon steel plate.

[0015] The lubrication plate is welded and fixed to the inner wall of the vibrating wheel inner cylinder.

[0016] The vibration bearing is mounted on a bearing housing, and the bearing housing and the vibration bearing are used to support and fix the eccentric shaft assembly.

[0017] The beneficial effects of this utility model are: This utility model has a compact structure, with all components integrated inside the vibrating steel wheel, without the addition of external accessories.

[0018] In this utility model, the lubrication upright plate and the lubrication guide plate are welded from standard carbon steel plates, which is a mature process and easy to manufacture.

[0019] In this invention, the V-groove is located at the end of the folded edge, forming a concentrated oil outlet with clear guidance.

[0020] The flow channel of this invention is controllable, and the inclined holes and inclined guide grooves are set at an angle. The inclined holes and inclined guide grooves serve as flow channels for lubricating oil, providing a definite flow path for the lubricating oil.

[0021] This invention has strong compatibility and can be implemented without changing the basic external dimensions of the bearing housing. Attached Figure Description

[0022] Figure 1 This is the front view of the device.

[0023] Figure 2 for Figure 1 AA section view in the image.

[0024] Figure 3 This is a schematic diagram of the lubrication guide plate structure.

[0025] Figure 4 This is a schematic diagram of the bearing housing structure.

[0026] In the figure, the attached reference numerals are: 1. Vibratory wheel inner cylinder; 2. Lubrication vertical plate; 3. Lubrication guide plate; 4. Bearing housing; 5. Eccentric shaft assembly; 6. Vibratory bearing; 7. Steel wheel body; 31. V-groove; 32. Folded edge; 41. Inclined hole; 42. Inclined guide groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] The accompanying drawings show various structural schematic diagrams according to embodiments of the present invention. These drawings are not to scale, and some details have been enlarged and may have been omitted for clarity. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0029] Example 1: To overcome the problems of redundant structures, poor heat dissipation, and difficult maintenance in existing systems, this utility model provides the following... Figures 1-4 The present invention relates to a lubrication and diversion device for the bearing of a vibratory steel wheel of a road roller. This utility model has a simple structure, low cost, requires no external power, and can effectively prevent the oil from heating up, thus effectively solving the lubrication problem of the bearing of the vibratory wheel of a road roller during operation.

[0030] A lubrication and flow guiding device for a vibratory steel wheel bearing of a road roller includes a vibratory wheel inner cylinder 1, a lubrication vertical plate 2, a lubrication guide plate 3, a bearing seat 4, and an eccentric shaft assembly 5. Multiple lubrication vertical plates 2 are evenly distributed along the circumferential direction of the inner wall of the vibratory wheel inner cylinder 1. The lubrication guide plate 3 is fixedly connected to the lubrication vertical plate 2 and located inside the vibratory wheel inner cylinder 1. The lubrication guide plate 3 has upwardly bent flanges 32 on both sides. The eccentric shaft assembly 5 is installed inside the vibratory wheel inner cylinder 1 via a vibratory bearing 6 and a bearing seat 4.

[0031] like Figure 1 , Figure 2 and Figure 4 As shown, during the operation of the vibratory roller, the eccentric shaft assembly 5 drives the steel wheel body 7 to vibrate at high speed in the circumferential direction through the centrifugal force generated by the high-speed rotation. The vibratory bearing 6 and bearing seat 4 provide support for the eccentric shaft assembly 5. The rotation of the steel wheel body 7 drives the lubrication vertical plate 2 and lubrication guide plate 3 in the inner cylinder 1 of the vibratory roller to rotate together.

[0032] The inner wall of the vibrating wheel inner cylinder 1 has several lubrication plates 2 and lubrication guide plates 3 made of carbon steel plate, which are welded to the inner vibrating wheel inner cylinder 1 to form a whole. When the vibrating steel wheel moves forward or backward, as the steel wheel body 7 of the vibrating steel wheel rolls, the lubrication plates 2 and lubrication guide plates 3 in the vibrating wheel inner cylinder 1 carry the lubricating oil to a high position, and then it falls freely under gravity, dripping onto the bearing seat 4. The bearing seat 4 has several Φ8mm oblique holes 41 and R8mm oblique guide grooves 42 distributed along its circumference. The lubricating oil is guided into the bearing seat 4 through the oblique holes 41 and oblique guide grooves 42, which serves to lubricate the vibrating bearing 6. The eccentric shaft assembly 5 rotates in the same direction as the vibrating steel wheel, which is clockwise.

[0033] This utility model provides a lubrication guide device for the bearing of a vibratory steel wheel of a road roller. Through the structural cooperation between the lubrication guide plate 3 with folded edge 32 and V-groove 31 and the bearing seat 4 with perforated groove, the device achieves directional guidance and reasonable distribution of lubricating oil without adding an oil pump or enlarging the bearing seat.

[0034] Example 2: Based on Embodiment 1, in this embodiment, preferably, the angle between the folded edge 32 and the horizontal plane is 25°-30°.

[0035] Preferably, the free end of the folded edge 32 is provided with a V-groove 31, the opening width of the V-groove 31 is not greater than 21.5mm, and the bottom of the V-groove 31 is inclined at 15°-20° toward the bearing seat 4.

[0036] like Figure 3 As shown, the lubrication guide plate 3 has 30° bends on both sides to form folded edges 32, and a V-groove 31 with a maximum width of 21.5mm and an angle of 15°-20° is opened at the outer end (free end) of the folded edge 32. The purpose of bending the two sides of the lubrication guide plate 3 is to ensure that the lubricating oil carried up by the vibrating steel wheel during operation flows into the bearing chamber through the V-groove 31 on both sides, and then through the inclined hole 41 and inclined guide groove 42 of the bearing seat 4 to lubricate the vibrating bearing 6. This prevents the oil in the length direction of the lubrication guide plate 3 (excluding the V-groove 31 on the surface of the lubrication guide plate 3 in the length direction) from flowing to the high-speed rotating eccentric shaft assembly 5, causing oil mixing loss and heat generation. Figure 3 In the diagram, (a) is the front view and (b) is the side view. In this utility model, when the lubrication guide plate 3 is installed and fixed, the folded edge 32 of the lubrication guide plate 3 is opposite to the inner wall of the inner cylinder 1 of the vibrating wheel. This ensures that only the lubricating oil that flows through the V-groove 31 can flow out. The remaining oil flowing along the surface of the lubrication guide plate 3 is blocked by the folded edge 32, preventing it from dripping directly onto the high-speed rotating eccentric shaft assembly 5 and causing oil mixing and heating.

[0037] Preferably, the bearing housing 4 has multiple oblique holes 41 and oblique guide grooves 42 on its outer circumferential surface.

[0038] Preferably, the oblique holes 41 and oblique guide grooves 42 are alternately distributed along the circumference of the bearing seat 4, and both are inclined in the same direction.

[0039] Preferably, the diameter of the oblique hole 41 is 8mm-10mm, and the radius of the oblique guide groove 42 is 8mm-10mm.

[0040] In this invention, multiple Φ8mm oblique holes 41 and R8mm oblique guide grooves 42 are machined on the outer circumference of the bearing housing 4.

[0041] The dimensions of the oblique hole 41 and the oblique hole 42 are matched, and can be preferably: oblique hole 41Φ8mm, oblique guide groove 42R8mm; oblique hole 41Φ9mm, oblique guide groove 42R9mm; oblique hole 41Φ10mm, oblique guide groove 42R10mm.

[0042] After the lubricating oil is poured in from above, it is guided into the upper part of the bearing chamber through the inclined hole 41 or the inclined guide groove 42 to lubricate the vibrating bearing 6 and the raceway; the high-temperature oil is discharged from the lower channel to form a self-circulating cooling system.

[0043] Preferably, both the lubrication upright plate 2 and the lubrication guide plate 3 are made of carbon steel.

[0044] Preferably, the lubrication plate 2 is welded and fixed to the inner wall of the vibrating wheel inner cylinder 1.

[0045] In this utility model, the lubrication plate 2 is made of multiple carbon steel plates, which are welded to the inner wall of the inner cylinder 1 of the vibrating wheel. The middle part of the lubrication guide plate 3 is welded and fixed to the end of the lubrication plate 2. When the lubrication plate 2 rotates with the vibrating steel wheel, it carries the bottom lubricating oil upward.

[0046] Preferably, the vibration bearing 6 is mounted on the bearing housing 4, and the bearing housing 4 and the vibration bearing 6 are used to support and fix the eccentric shaft assembly 5.

[0047] like Figure 3 As shown, in this utility model, the groove opening of the V-groove 31 is located at the outermost end of the folded edge 32, which is used to guide the lubricating oil to flow out in a concentrated manner and spray it onto the upper surface area of ​​the bearing seat 4.

[0048] The inclined angles of the inclined hole 41 and the inclined guide groove 42 with the same horizontal plane are 15°–30°, which allows the lubricating oil flowing in from above to flow along the inner wall of the hole and groove to the raceway of the vibrating bearing 6, and allows the heated lubricating oil to be discharged from the lower part of the bearing chamber.

[0049] The vibrating wheel inner cylinder 1, the lubrication vertical plate 2, and the lubrication guide plate 3 constitute a self-circulating lubrication structure without an external power source.

[0050] Both the lubrication guide plate 3 and the lubrication vertical plate 2 are preferably made of carbon steel plates with a thickness of 5-10mm, and rotate synchronously with the inner cylinder 1 of the vibrating wheel.

[0051] This device has a compact structure, with all components integrated inside the vibrating steel wheel, without the addition of any external accessories.

[0052] The lubrication vertical plate 2 and the lubrication guide plate 3 are welded from standard carbon steel plates, which is a mature process and easy to manufacture.

[0053] In this invention, the V-groove 31 is located at the end of the folded edge 32, forming a concentrated oil outlet with clear guidance.

[0054] In this invention, the flow channel is controllable, and the inclined hole 41 and the inclined guide groove 42 are inclinedly arranged. The inclined hole 41 and the inclined guide groove 42 serve as the flow channel for lubricating oil, providing a definite flow path for the lubricating oil.

[0055] This utility model has strong compatibility and can be implemented without changing the basic external dimensions of the bearing housing 4.

[0056] like Figures 1-4 As shown, the inner cylinder 1 of the vibrating wheel serves as the rotating main body, and a closed lubrication cavity is formed inside; Eight sets of lubrication vertical plates 2 and lubrication guide plates 3 are uniformly welded circumferentially to the inner wall of the inner cylinder 1 of the vibrating wheel. The lubrication guide plates 3 are made of Q235 carbon steel plate with a thickness of 6mm. The two side folded edges 32 are bent upward at a 30° angle. A V-shaped groove 31 is machined at the outermost end of the folded edge with a groove width of 21.5mm and the bottom of the groove is inclined at 20° towards the bearing seat 4.

[0057] like Figure 4 As shown, Figure 4 In the middle, (a) is Figure 1 (a) is a sectional view of the BB bearing housing, and (b) is a side view of the bearing housing.

[0058] Twelve Φ8mm oblique holes 41 and twelve R8mm oblique guide grooves 42 are machined on the outer circumferential surface of the bearing housing 4, arranged alternately, and the whole structure is inclined at 25° clockwise. The main function of the Φ8mm oblique holes 41 and twelve R8mm oblique guide grooves 42 on the bearing housing 4 is to introduce low-temperature lubricating oil from the top and to discharge high-temperature lubricating oil from the bottom, thus carrying away the heat of the bearing.

[0059] During assembly, the V-groove 31 of the lubrication guide plate 3 is aligned with the upper surface area of ​​the bearing seat 4 to ensure that the lubricating oil flowing out of the V-groove 31 falls directly into the inclined hole 41 and the inlet of the inclined guide groove 42.

[0060] This device has a simple structure, low cost, and is easy to implement; it does not require high oil level control of the vibrating steel wheel during operation; and it can effectively avoid the problem of oil mixing and heat generation caused by the high-speed rotation of the eccentric shaft assembly 5 of the vibrating steel wheel striking the lubricating oil. At the same time, it has a significant cost advantage compared to traditional chamber or oil pump forced lubrication.

[0061] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical signal connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0062] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0063] The examples above are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are identical or similar to this utility model fall within the scope of protection of this utility model. Device structures and steps not described in detail in this utility model are prior art and will not be further described in this utility model.

Claims

1. A lubrication and diversion device for the bearing of a vibratory steel wheel of a road roller, characterized in that: It includes the inner cylinder of the vibrating wheel (1), the lubrication vertical plate (2), the lubrication guide plate (3), the bearing seat (4), and the eccentric shaft assembly (5); The lubrication plates (2) are multiple and are evenly distributed along the inner wall of the inner cylinder (1) of the vibrating wheel; the lubrication guide plate (3) is fixedly connected to the lubrication plates (2) and is located inside the inner cylinder (1) of the vibrating wheel, and the two sides of the lubrication guide plate (3) are respectively provided with upward bent edges (32); the eccentric shaft assembly (5) is installed inside the inner cylinder (1) of the vibrating wheel through the vibrating bearing (6) and the bearing seat (4).

2. The lubrication and diversion device for the bearing of a vibratory steel wheel of a road roller according to claim 1, characterized in that: The angle between the folded edge (32) and the horizontal plane is 25°-30°.

3. The lubrication and diversion device for the bearing of a vibratory steel wheel of a road roller according to claim 2, characterized in that: The free end of the folded edge (32) is provided with a V-groove (31), the opening width of the V-groove (31) is no more than 21.5mm, and the bottom of the V-groove (31) is inclined at 15°-20° toward the bearing seat (4).

4. The lubrication and diversion device for the bearing of a vibratory steel wheel of a road roller according to claim 1, characterized in that: The bearing housing (4) has multiple oblique holes (41) and oblique guide grooves (42) on its outer circumferential surface.

5. The lubrication and diversion device for the bearing of a vibratory steel wheel of a road roller according to claim 4, characterized in that: The oblique holes (41) and oblique guide grooves (42) are alternately distributed along the circumference of the bearing seat (4) and are all inclined in the same direction.

6. The lubrication and diversion device for the bearing of a vibratory steel wheel of a road roller according to claim 5, characterized in that: The diameter of the oblique hole (41) is 8mm-10mm, and the radius of the oblique guide groove (42) is 8mm-10mm.

7. The lubrication and diversion device for the bearing of a vibratory steel wheel of a road roller according to claim 1, characterized in that: Both the lubrication vertical plate (2) and the lubrication guide plate (3) are made of carbon steel.

8. The lubrication and diversion device for the bearing of a vibratory steel wheel of a road roller according to claim 1, characterized in that: The lubrication plate (2) is welded and fixed to the inner wall of the vibrating wheel inner cylinder (1).

9. The lubrication and diversion device for the bearing of a vibratory steel wheel of a road roller according to claim 1, characterized in that: The vibration bearing (6) is mounted on the bearing housing (4), and the bearing housing (4) and the vibration bearing (6) are used to support the fixed eccentric shaft assembly (5).

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