Bearing lubricating device for grab bucket pulley block of slag grabbing crane of iron-making blast furnace

Abstract

The utility model relates to an ironmaking blast furnace slag grabbing crane grab bucket pulley block bearing lubricating device which comprises an oil passing main shaft, a hollow shaft is arranged on the oil passing main shaft, a plurality of bearings are arranged on the hollow shaft, and pulleys are arranged on the bearings. A plurality of oil filling holes are formed in the two sides of the oil passing main shaft, the oil filling holes are connected with oil ways, oil passing holes communicated with the bearings and the oil ways are formed in the hollow shaft, sealing rings are further arranged between the oil passing main shaft and the hollow shaft, and the sealing rings are arranged at the two ends of the oil passing main shaft. The utility model has the beneficial effects that each oil filling hole corresponds to one group of bearings, each group of bearings can be ensured to be filled with oil for lubrication, oil shortage and oil leakage caused by loss of lubricating oil are prevented, the service life of the bearings is prolonged, and meanwhile, the maintenance and replacement frequency of equipment is reduced because the service life of the bearings is prolonged; therefore, the operation and maintenance cost is reduced, and the equipment operation and maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pulley block technical field especially a kind of iron-making blast furnace slag grabbing crane grab bucket pulley block bearing lubricating device. BACKGROUND

[0002] Blast furnace slag grabbing crane grab bucket has two groups of pulley blocks, and each group has four pulleys, and the bearing used is single-sided sealed bearing, and bearing lubrication is generally filled and injected when bearing and pulley piece are assembled, and there is injection out of place during operation, causing individual bearing to be damaged prematurely due to oil loss, and the main reason is that pulley block is composed of solid and hollow shaft, and oil injection hole can only be machined on solid shaft due to pulley block installation, and there is a certain gap between solid and hollow shaft, and oil leaks during each oil injection, and cannot be injected into pulley block bearing cavity, resulting in bearing oil loss, and bearing contact medium is high-temperature water and water slag, which is highly corrosive, and once the oil film protection is lost, the bearing damage frequency increases, and the equipment failure rate increases, resulting in high maintenance equipment cost. SUMMARY

[0003] In order to overcome the above-mentioned problems, the utility model provides an iron-making blast furnace slag grabbing crane grab bucket pulley block bearing lubricating device, which can effectively lubricate the bearing and prevent oil loss.

[0004] The utility model discloses a kind of iron-making blast furnace slag grabbing crane grab bucket pulley block bearing lubricating devices, and the technical scheme adopted to solve its technical problem is: a kind of iron-making blast furnace slag grabbing crane grab bucket pulley block bearing lubricating device, including oil passage main shaft, the oil passage main shaft is provided with hollow shaft, the hollow shaft is provided with multiple bearings, and the bearing is provided with pulley;Multiple oil injection holes are arranged on the two sides of the oil passage main shaft, the number of oil injection holes corresponds to the number of bearings, and the oil injection hole is connected with oil channel, the oil channel is arranged in the oil passage main shaft, the hollow shaft is provided with oil passage hole that is connected with the oil channel, and the sealing ring is further provided between the oil passage main shaft and the hollow shaft, and the sealing ring is arranged at the two ends of the oil passage main shaft.

[0005] Preferably, the hollow shaft is provided with locking nut at both ends, and the surface of the hollow shaft is further provided with shaft sleeve.

[0006] Preferably, the oil passage hole is arranged at the position corresponding to the center of the bearing.

[0007] The utility model has the advantages that each oil injection hole corresponds to a group of bearings, so that each group of bearings can be lubricated, and oil loss caused by lubricating oil loss is prevented, the service life of the bearing is prolonged, the maintenance and replacement frequency of the equipment are reduced, and the operation and maintenance cost of the equipment is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0008] The utility model is further illustrated below in combination with the drawings and embodiments.

[0009] Figure 1 It is the structural schematic diagram of the utility model.

[0010] In the figure, 1, oil through main shaft;2, hollow shaft;21, locking nut;22, shaft sleeve;3, bearing;4, pulley;5, oil hole;51, oil circuit;6, oil hole;7, sealing ring. Specific implementation

[0011] All features disclosed in this specification, or the steps in all methods or processes disclosed, can be combined in any manner, except where mutually exclusive.

[0012] Any feature disclosed in this specification, including any accompanying claims, abstract and drawings, can be replaced by alternative features that are equivalent in terms of function or have a similar purpose, unless specifically stated otherwise. That is, each feature is only one example of a range of equivalent or similar features, unless specifically stated otherwise.

[0013] According to Figure 1 As shown in the figure, a kind of high furnace slag grabbing crane grab pulley block bearing lubricating device of iron-making blast furnace, including oil through main shaft 1, the hollow shaft 2 is arranged on the oil through main shaft 1, four bearings 3 are arranged on the hollow shaft 2, the bearing 3 is provided with pulley 4;

[0014] Four oil holes 5 are arranged on the two sides of the oil through main shaft 1, and each bearing 3 is correspondingly arranged in each oil hole 5, which can ensure reliable lubrication of each group of bearings 3, prevent oil loss, and improve bearing life;The oil hole 5 is connected with an oil circuit 51, the oil circuit 51 is arranged in the oil through main shaft 1, the hollow shaft 2 is provided with an oil hole 6 communicating with the bearing 3 and the oil circuit 5, the oil hole 6 can make the lubricating oil directly flow into the rolling body cavity of the bearing 3, which can more efficiently lubricate the key components of the bearing and improve the lubrication efficiency;The oil through main shaft 1 and the hollow shaft 2 are further provided with a sealing ring 7, the sealing ring 7 is arranged at the two ends of the oil through main shaft 1, which can prevent oil leakage from the two sides of the hollow shaft 2, so that the oil can fill the gap between the oil through main shaft 1 and the hollow shaft 2, reduce the wear during equipment operation, and improve the reliability of the equipment.

[0015] Locking nuts 21 are arranged at the two ends of the hollow shaft 2;The surface of the hollow shaft 2 is further provided with a shaft sleeve 22;The main function of the shaft sleeve 22 is to protect the hollow shaft 2 from damage due to external impact or wear.

[0016] The oil hole 6 is arranged at the center of the corresponding bearing 3.

[0017] The design scheme is ingenious, a group of bearings are corresponded to each oil filling hole, lubricating oil can accurately flow to each bearing, so that the bearing rolling body is fully lubricated, thereby reducing wear and prolonging the service life of the bearing, and the maintenance and replacement frequency of the equipment is reduced, thereby reducing the operation and maintenance cost of the equipment.

[0018] The utility model is not limited to the foregoing specific embodiments. The utility model extends to any new feature disclosed in this specification or any new combination, as well as any new method or process step disclosed or any new combination.

Claims

1. A slag grabbing trolley block pulley bearing lubricating device for an iron making blast furnace, characterized in that: The utility model provides an oil supply main shaft (1) is provided with hollow shaft (2) on it, and a plurality of bearings (3) are provided on the hollow shaft (2), and pulley (4) is provided on the bearing (3), a plurality of oil supply holes (5) are provided on both sides of the oil supply main shaft (1), the number of oil supply hole (5) corresponds with the number of bearing (3), and oil supply hole (5) is connected with oil channel (51), and oil channel (51) is arranged in oil supply main shaft (1), and oil supply hole (6) that communicates bearing (3) with oil channel (51) is arranged on the hollow shaft (2), and sealing ring (7) is further arranged between oil supply main shaft (1) and hollow shaft (2), and sealing ring (7) is arranged at both ends of oil supply main shaft (1).

2. A slag grabbing trolley grab block bearing lubrication device for an iron making blast furnace according to claim 1, characterized in that: Locking nut (21) is arranged at both ends of the hollow shaft (2), and the surface of the hollow shaft (2) is further provided with a shaft sleeve (22).

3. A slag grabbing trolley grab block bearing lubrication device for an iron making blast furnace according to claim 1, characterized in that: The oil supply hole (6) is arranged at the position corresponding to the center of the bearing (3).

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