Lubricating device of roller transmission part

Abstract

The utility model relates to a lubricating device of a roller transmission part, which comprises a transmission shaft and a roller shaft sleeve which are connected with each other, an inner ring rotating along with the transmission shaft is sleeved outside the transmission shaft, an outer ring is rotatably connected outside the inner ring, the outer ring is fixedly connected with a fixed support, and a plurality of sealing grooves are arranged on a contact surface of the inner ring matched with the outer ring. A supporting sealing ring is arranged at the groove bottom of the sealing groove, a wear-resisting sealing ring is arranged on the outer side of the supporting sealing ring, an oil injection connector is arranged on the outer ring in the radial direction, an oil discharging connector is arranged on the side surface of the inner ring, and the interiors of the oil injection connector and the oil discharging connector are communicated through an oil way. The oil discharge connector is connected with the oil inlet end of a grease distributor connected to the transmission shaft through an oil guide pipe, and oil distribution pipes at the oil outlet end of the grease distributor are led to the four knuckle bearings of the transmission shaft and the inner wall of the roller shaft sleeve respectively. Automatic oil supplement lubrication of the roller side transmission shaft and the roller shaft sleeve of the transmission shaft of the rolling mill is achieved. A spindle pump is replaced, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lubricating technical field, and particularly relates to a lubricating device of hot rolling roller transmission part. BACKGROUND

[0002] The hot rolling strip production line transmits the torque and movement of the motor to the roller through the rolling mill transmission shaft, and the working condition of the roller side is relatively poor, and the service life of the roller shaft sleeve and the transmission shaft part of the roller side can be reduced by the effects of cooling water flushing, scale impurities and water vapor erosion, the roller shaft sleeve is matched with the roller flat head, the roller is closest to the roller, the cooling water, the scale and the water vapor directly act on the roller shaft sleeve, and the inner layer of the roller shaft sleeve is quickly worn.

[0003] The lubricating oil or grease can form a protective oil film on the bearing and pressure-bearing part, and the negative effects of cooling water, scale and water vapor can be reduced. The rolling mill cross shaft type transmission shaft can only be lubricated by grease. After repeated pressure on the pressure-bearing part, the grease can be crushed out of the pressure-bearing part, and the protective effect gradually decreases, and continuous replenishment is required. Since the rolling mill transmission shaft is continuously rotating during production, oil replenishment is difficult, and the transmission shaft is usually filled with oil during shutdown maintenance, and the oil is filled once and overflowed, and the next time is filled again, and since the repeated crushing is not replenished, the latter half of the actual production period is in a state of oil shortage. This is the key factor that causes the low service life of the roller side transmission shaft and the roller shaft sleeve. SUMMARY

[0004] The utility model wants to solve the technical problem to provide a lubricating device of hot rolling roller transmission part, realizes the automatic oil replenishment lubrication of the rolling mill transmission shaft roller side transmission shaft and roller shaft sleeve.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of roller transmission part lubricating device, including transmission shaft and roller shaft sleeve connected with each other, transmission shaft outer sleeve is equipped with inner ring rotating with transmission shaft, the outer rotation of inner ring is connected with outer ring, outer ring is fixedly connected with fixed support, and the contact surface of inner ring matched with outer ring is equipped with multiple sealing grooves, the groove bottom of sealing groove is equipped with support sealing ring, the outside of support sealing ring is equipped with wear-resistant sealing ring, oil inlet is radially arranged on outer ring, and oil outlet is arranged on the side surface of inner ring, the inside of oil inlet and oil outlet is communicated by oil channel, oil outlet is connected with the oil inlet end of grease distributor connected on transmission shaft by oil guide pipe, and the oil outlet end of grease distributor is connected with the four joint bearings of transmission shaft and the inner wall of roller shaft sleeve respectively by oil distribution pipe.

[0007] The support sealing ring is an O-shaped sealing ring.

[0008] The wear-resistant sealing ring is a polytetrafluoroethylene sealing ring with a cross section matched with the sealing groove.

[0009] The inner ring comprises two split inner ring halves, and the two inner ring halves are connected through inner ring half fastening devices symmetrically arranged on both sides of the inner ring halves.

[0010] The outer ring comprises two split outer ring halves, and the two outer ring halves are connected through outer ring half fastening devices.

[0011] The fixing support comprises a crossbeam, a hanger rod is fixedly connected with the top of the outer ring through the crossbeam, a spring is sleeved on the hanger rod above the crossbeam, and the top of the hanger rod is connected with an adjusting nut.

[0012] Compared with the prior art, the rolling mill transmission shaft roller side transmission shaft and the roller shaft sleeve are automatically lubricated.

[0013] The rolling mill transmission shaft roller side transmission shaft and the roller shaft sleeve are automatically lubricated. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model.

[0015] Figure 2 It is a connection schematic view of the outer ring, the inner ring and the fixing support 5.

[0016] Figure 3 It is a structural schematic view of the inner ring.

[0017] Figure 4 It is a structural schematic view of the outer ring.

[0018] Figure 5 It is Figure 1 It is an enlarged view of A in the middle.

[0019] In the figure: 1, transmission shaft; 2, roller shaft sleeve; 3, inner ring; 4, outer ring; 5, fixing support; 6, sealing groove; 7, supporting sealing ring; 8, wear-resistant sealing ring; 9, oil injection joint; 10, oil discharge joint; 11, oil guide pipe; 12, grease distributor; 13, oil distribution pipe; 31, inner ring half; 32, inner ring half fastening device; 41, outer ring half; 42, outer ring half fastening device; 51, crossbeam; 52, hanger rod; 53, spring; 54, adjusting nut. DETAILED DESCRIPTION

[0020] In the description of the utility model, it is necessary to understand that the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can be explicitly or implicitly included one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is more than two.

[0021] Unless otherwise expressly provided and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0022] As Figures 1-5 A lubricating device of roll driving part, including driving shaft 1 and roll shaft sleeve 2 connected with each other, the outer sleeve of driving shaft 1 is provided with inner ring 3 rotating with driving shaft, the outer of inner ring 3 is rotatably connected with outer ring 4, outer ring 4 is fixedly connected with fixed support 5, a plurality of sealing grooves 6 are arranged on the contact surface of inner ring 3 matched with outer ring 4, the groove bottom of sealing groove 6 is provided with supporting sealing ring 7, the outer side of supporting sealing ring 7 is provided with wear-resistant sealing ring 8, oil injection joint 9 is radially arranged on outer ring 4, oil discharge joint 10 is arranged on the side surface of inner ring 3, the inside of oil injection joint 9 and oil discharge joint 10 is communicated through oil channel, oil discharge joint 10 is connected with the oil inlet end of grease distributor 12 connected on driving shaft 1 through oil guide pipe 11, the oil distribution pipe 13 of oil outlet end of grease distributor 12 leads to four joint bearings of driving shaft and inner wall of roll shaft sleeve 2 respectively.

[0023] The supporting sealing ring 7 is an O-shaped sealing ring.

[0024] The wear-resistant sealing ring 8 is a polytetrafluoroethylene sealing ring with a cross section matched with the sealing groove 6.

[0025] The fixed support 5 includes a cross beam 51, a suspender 52 is fixedly connected with the top of the outer ring 4 by penetrating through the cross beam 51, a spring 53 is sleeved on the suspender 52 above the cross beam 51, and the top of the suspender 52 is connected with an adjusting nut 54.

[0026] The inner ring 3 includes two split inner ring half rings 31, and the two inner ring half rings 31 are connected through the inner ring half ring fastening devices 32 symmetrically arranged on both sides of the inner ring half ring 31.

[0027] The outer ring 4 includes two split outer ring half rings 41, and the two outer ring half rings 41 are connected through the outer ring half ring fastening devices 42.

[0028] Working process:

[0029] The high-pressure lubricating grease is supplied from the outside and enters through the oil injection joint 9 on the outer ring 4, is pressed into the oil discharge joint 10 of the inner ring 3 through an oil path, enters the grease distributor 12 through the oil guide pipe 11, and the grease distributor 12 quantitatively distributes the high-pressure lubricating grease to the four joint bearings of the transmission shaft and the inner wall of the roll shaft sleeve 2, so as to meet the internal lubrication of the transmission shaft bearing and the roll shaft sleeve.

[0030] In order to make the purpose, technical scheme and technical effect of the utility model more clear, the technical scheme in the embodiment of the utility model is now clearly and completely described. However, the following described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. In combination with the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0031] Embodiment 1

[0032] A lubricating device for a roll transmission part, comprising a transmission shaft 1 and a roll shaft sleeve 2 connected with each other, the transmission shaft 1 is externally sleeved with an inner ring 3 rotating with the transmission shaft, the outer part of the inner ring 3 is rotationally connected with an outer ring 4, the outer ring 4 is fixedly connected with a fixed support 5, the fixed support 5 comprises a cross beam 51, a suspender 52 is fixedly connected with the top of the outer ring 4 by penetrating through the cross beam 51, a spring 53 is sleeved on the suspender 52 above the cross beam 51, and the top of the suspender 52 is connected with an adjusting nut 54.

[0033] A plurality of sealing grooves 6 are arranged on the contact surface of the inner ring 3 matched with the outer ring 4, the groove bottom of the sealing groove 6 is provided with a supporting sealing ring 7, the outer side of the supporting sealing ring 7 is provided with a wear-resistant sealing ring 8, and the supporting sealing ring 7 is an O-shaped sealing ring. The wear-resistant sealing ring 8 is a polytetrafluoroethylene sealing ring with a cross section matched with the sealing groove 6. The polytetrafluoroethylene sealing ring is pressed towards the O-shaped sealing ring, the O-shaped sealing ring is deformed to provide the polytetrafluoroethylene sealing ring with a higher initial contact stress, so as to keep close contact with the outer ring 4, and the good sliding performance of the polytetrafluoroethylene sealing ring can form a sealing effect with the outer ring 4. When the lubricating grease fills the sealing cavity, the polytetrafluoroethylene sealing ring is pushed to the non-pressure side, the lubricating grease enters the area of the O-shaped sealing ring, and the pressure and the initial contact stress jointly act on the bottom of the polytetrafluoroethylene sealing ring, so that the polytetrafluoroethylene sealing ring is closely attached to the outer ring 4, and the sealing effect is guaranteed.

[0034] The outer ring 4 is radially provided with an oil injection joint 9, and the side surface of the inner ring 3 is provided with an oil discharge joint 10, the interiors of the oil injection joint 9 and the oil discharge joint 10 are communicated through an oil path, the oil discharge joint 10 is connected with the oil inlet end of a grease distributor 12 connected on the transmission shaft 1 through an oil guide pipe 11, and the oil outlet end of the grease distributor 12 is connected with the four joint bearings of the transmission shaft and the inner wall of the roll shaft sleeve 2 through a grease distribution pipe 13.

[0035] Embodiment 2:

[0036] A lubricating device of a roll driving part, comprising a driving shaft 1 and a roll shaft sleeve 2 connected with each other, the driving shaft 1 is externally sleeved with an inner ring 3 rotating with the driving shaft, the outer part of the inner ring 3 is rotatably connected with an outer ring 4, the inner ring 3 comprises two split inner ring half rings 31, the two inner ring half rings 31 are connected through inner ring half ring fastening devices 32 symmetrically arranged on both sides of the inner ring half ring 31. The outer ring 4 comprises two split outer ring half rings 41, the two outer ring half rings 41 are connected through outer ring half ring fastening devices 42.

[0037] The outer ring 4 is fixedly connected with a fixed support 5, the fixed support 5 comprises a cross beam 51, a hanger rod 52 is bolted with the top of the outer ring 4 through the cross beam 51, a spring 53 is sleeved on the hanger rod 52 above the cross beam 51, and the top of the hanger rod 52 is connected with an adjusting nut 54.

[0038] A plurality of sealing grooves 6 are arranged on the contact surface of the inner ring 3 matched with the outer ring 4, a support sealing ring 7 is arranged on the groove bottom of the sealing groove 6, a wear-resistant sealing ring 8 is arranged on the outer side of the support sealing ring 7, and the support sealing ring 7 is an O-shaped sealing ring. The wear-resistant sealing ring 8 is a polytetrafluoroethylene sealing ring with a cross section matched with the sealing groove 6.

[0039] An oil injection joint 9 is arranged radially on the outer ring 4, an oil discharge joint 10 is arranged on the side surface of the inner ring 3, the inside of the oil injection joint 9 and the oil discharge joint 10 is communicated through an oil channel, the oil discharge joint 10 is connected with the oil inlet end of a grease distributor 12 connected with the driving shaft 1 through an oil guide pipe 11, and the oil outlet end of the grease distributor 12 is connected with the four joint bearings of the driving shaft and the inner wall of the roll shaft sleeve 2 through a grease distribution pipe 13.

[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and deformations can be made to the embodiments without departing from the principles and basic spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A lubricating device for a roll drive section, characterized in that The rolling mill comprises a transmission shaft and a roller sleeve connected with each other, an inner ring rotatable with the transmission shaft is sleeved outside the transmission shaft, an outer ring is rotatably connected outside the inner ring, the outer ring is fixedly connected with a fixed support, a plurality of sealing grooves are arranged on the contact surface of the inner ring matched with the outer ring, a supporting sealing ring is arranged at the bottom of each sealing groove, a wear-resistant sealing ring is arranged outside the supporting sealing ring, an oil injection joint is radially arranged on the outer ring, an oil discharge joint is arranged on the side surface of the inner ring, the inner part of the oil injection joint and the oil discharge joint is communicated through an oil channel, the oil discharge joint is connected with an oil inlet end of a grease distributor connected with the transmission shaft through an oil guide pipe, and a grease discharge pipe of an oil outlet end of the grease distributor is respectively connected with four joint bearings of the transmission shaft and the inner wall of the roller sleeve.

2. A lubricating device for a roll drive section according to claim 1, characterized in that The supporting sealing ring is an O-shaped sealing ring.

3. A lubricating device for a roll chock according to claim 1, wherein The wear-resistant sealing ring is a polytetrafluoroethylene sealing ring with a cross section matched with the sealing groove.

4. A lubricating device for a roll chock according to claim 1, wherein The inner ring comprises two split inner ring half-rings connected through inner ring half-ring fastening devices symmetrically arranged on both sides of the inner ring half-rings.

5. A lubricating device for a roll chock according to claim 1, wherein The outer ring comprises two split outer ring half-rings connected through outer ring half-ring fastening devices.

6. A lubricating device for a roll drive section according to claim 1, characterized in that The fixed support comprises a cross beam, a hanger rod is fixedly connected with the top of the outer ring by penetrating through the cross beam, a spring is sleeved on the hanger rod above the cross beam, and the top of the hanger rod is connected with an adjusting nut.

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