An immersed sealing roller

Abstract

The present invention discloses an immersed sealing roller, comprising: a cylinder, a roller shaft, a bearing, an oil seal seat, an oil seal and an oil seal cover plate. Bearings are fixed to the inner sides of both ends of the cylinder respectively. An oil seal groove is provided on one side of the oil seal seat, and an oil seal through-hole for the roller shaft to pass through is provided on the other side. The oil seal is arranged in the oil seal groove. The oil seal cover plate is fixedly connected to the oil seal seat. An oil seal through-hole for the roller shaft to pass through is provided on the oil seal cover plate. The oil seal seat is detachably connected to the cylinder. The roller shaft passes through the cylinder and is fixedly connected to the bearing and is in sealing contact with the oil seal. With the above technical solution, the oil seal seat and the gear are detachably connected, which is convenient for regular replacement of the oil seal, so that the roller maintains the best sealing performance. The oil seal and the bearing are designed to be separated to prevent the high temperature generated by the long-term rotation of the bearing from being transferred to the oil seal, and to prevent the oil seal from being in a high-temperature environment. This can not only ensure the sealing performance of the oil seal, but also extend the service life of the oil seal, and ensure that the roller can operate for a long time in a harsh environment.

Description

Technical Field

[0001] The present invention relates to the technical field related to sealing rollers, and in particular to an immersed sealing roller. Background Art

[0002] Rollers, also known as drums, are widely used in various transmission and conveying systems and sorting and conveying equipment, such as rotary screen printing machines, digital printers, mining conveying equipment, papermaking and packaging machinery. Rollers must have sufficient rigidity to ensure that bending deformation under heavy loads does not exceed the allowable value. The roller surface should have sufficient hardness, generally requiring HRC 50 or above, and strong corrosion resistance.

[0003] The conveying device for conveying materials mainly consists of a driving roller, a driven roller, a conveyor belt mounted on the driving roller and the driven roller, and a drive motor. At present, most rollers are only suitable for conveying under normal conditions. However, for harsh environments, such as gravel environments, corrosive liquid environments, etc., the sealing performance of conventional rollers is poor. Corrosive liquids and fine sand particles can easily enter the sealed bearings, causing corrosion or even damage to the bearing balls and roller shafts, making it difficult for the rollers to work normally for a long time. The bearings and oil seals of existing sealed rollers are arranged in the same bearing seat. When the roller runs for a long time, the high temperature generated by the bearings is easily transmitted to the oil seal, causing the oil seal to be in a high temperature state for a long time, which can easily cause its sealing performance to decline and reduce its service life. How to produce a roller that can operate normally for a long time in a gravel and corrosive liquid environment has become an urgent problem to be solved. Summary of the Invention

[0004] The object of the present invention is to provide an immersed sealing roller to solve the above technical problems.

[0005] The technical solutions adopted by the present invention to solve the technical problems are as follows:

[0006] According to one aspect of the present invention, an immersed sealing roller is designed, comprising: a cylinder, a roller shaft, a bearing, an oil seal seat, an oil seal and an oil seal cover plate, wherein bearings are fixedly provided on the inner sides of both ends of the cylinder, an oil seal groove is provided on one side of the oil seal seat, and an oil seal through-hole for the roller shaft to pass through is provided on the other side, the oil seal is arranged in the oil seal groove, the oil seal cover plate is fixedly connected to the oil seal seat, an oil seal cover through-hole for the roller shaft to pass through is provided on the oil seal cover plate, the oil seal seat is detachably connected to the cylinder, the roller shaft passes through the cylinder, the oil seal cover plate and the oil seal seat, and is fixedly connected to the bearing and in sealing contact with the oil seal.

[0007] By adopting the above technical solution, the oil seal seat and the gear are detachably connected, which makes it easy to remove the oil seal seat and replace the oil seal regularly, so that the roller maintains the best sealing performance; the oil seal and the bearing are designed to be separated, that is, they are respectively arranged in different components, which can prevent the high temperature generated by the long-term rotation of the bearing from being transmitted to the oil seal, and avoid the oil seal from being in a high-temperature environment. It can not only ensure the sealing performance of the oil seal, but also extend the service life of the oil seal, thereby ensuring that the roller can operate for a long time in harsh environments.

[0008] In order to better solve the above technical defects, the present invention also has a better technical solution:

[0009] In some embodiments, gears are further included, two of the gears are respectively fixed to the two ends of the cylinder, a gear through hole is provided on the gear for the right end of the oil seal seat to extend into, and the oil seal seat is detachably connected to the cylinder cover.

[0010] Therefore, the immersed sealing roller can be used in conjunction with not only an ordinary conveyor belt but also a chain conveyor belt, and is highly practical.

[0011] In some embodiments, bearing seats are fixedly provided on the inner sides of both ends of the cylinder, and the bearing seats are provided with a bearing seat through hole for the roller shaft to pass through, and a bearing step portion is also provided, and the bearing is installed on the bearing step portion.

[0012] By arranging the bearing seat and the bearing step portion, it can be ensured that the bearing and the cylinder are accurately fitted and installed.

[0013] In some embodiments, an oil seal cover plate protrusion is provided on one side where the oil seal cover plate is connected to the oil seal seat. When the oil seal cover plate is fixed to the oil seal seat, the oil seal cover plate protrusion penetrates into the oil seal groove and contacts the oil seal.

[0014] In this way, a better sealing effect can be ensured.

[0015] In some embodiments, a cylinder step portion is provided on the inner sides of both ends of the cylinder, and the bearing seat is installed on the cylinder step portion.

[0016] In this way, the bearing seat and the cylinder can be installed with precise matching.

[0017] In some embodiments, a gear step portion is provided on the gear, and the end portion of the cylinder is mounted on and fixedly connected to the cover plate step portion.

[0018] In this way, the gear and the cylinder can be installed with precise matching.

[0019] In some embodiments, a sealing gasket is provided at the connection between the oil seal seat and the gear.

[0020] This can achieve a better sealing effect.

[0021] In some embodiments, the axis lines of the cylinder, the bearing, and the oil seal groove are coaxially arranged.

[0022] In some embodiments, one or more oil seals are provided, and the outer sidewalls of the oil seals are in contact with the sidewalls of the oil seal groove.

[0023] This ensures a better sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of an immersed sealing roller according to one embodiment of the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the enlarged structure;

[0026] Figure 3 This is a schematic diagram of the exploded structure of the oil seal seat, oil seal and oil seal cover of the immersed sealing roller;

[0027] Figure 4 This is the front view of the oil seal seat of the immersed sealing roller;

[0028] Figure 5 Front view of the gear of the immersed sealing roller. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present invention more clear and explicit, the present invention is further described in detail below with reference to the accompanying drawings.

[0030] like Figures 1 to 5 As shown, the present invention provides an immersed sealing roller, which includes: a cylinder 1, a roller shaft 2, a bearing 3, an oil seal seat 4, an oil seal 5, an oil seal cover plate 6 and a gear 7.

[0031] The cylinder 1 is hollow inside and open at both ends, which can reduce weight. Cylinder steps are provided on the inner sides of both ends of the cylinder 1, and a bearing seat 11 is fixed on the cylinder step. The bearing seat 11 is provided with a bearing seat through hole 110 for the roller shaft 2 to pass through. The bearing seat 11 is also provided with a bearing step, and the bearing 3 is installed on the bearing step.

[0032] A gear through hole 71 is provided in the middle of the gear 7, into which the right end of the oil supply seal seat 4 extends. A gear step is provided on the side of the gear 7 corresponding to the cylinder 1. The end of the cylinder 1 is placed on the gear step and fixedly connected to it. Teeth 72 are provided on the outer periphery of the gear 7. Gears 7 are fixed at both ends of the cylinder 1.

[0033] The oil seal seat 4 is detachably connected to the gear 7 via bolts. An oil seal groove 420 is provided on the right side of the oil seal seat 4, and an oil seal through-hole 410 is provided on the left side, through which the roller shaft 2 passes. Specifically, the oil seal seat 4 includes an oil seal seat base plate 41 and an oil seal seat protrusion 42. The oil seal seat base plate 41 and the oil seal seat protrusion 42 are arranged on the same axis. The oil seal seat protrusion 42 has an oil seal groove 420 provided within it, and an oil seal through-hole 410 is provided on the oil seal seat base plate 41, through which the roller shaft 2 passes. The diameter of the oil seal groove 420 is larger than that of the oil seal through-hole 410, and the two are connected and arranged on the same axis.

[0034] The oil seal 5 is arranged in the oil seal groove 420, and the outer wall of the oil seal is in contact with the side wall of the oil seal groove 420. There is one oil seal 5 or multiple oil seals 5 in the oil seal groove 420. In this embodiment, three oil seals 5 are preferably arranged in the oil seal groove 420.

[0035] The oil seal cover plate 6 is fixedly connected to the oil seal seat 4. A sealing gasket 73 is provided at the connection between the oil seal seat bottom plate 41 and the gear 7.

[0036] The oil seal cover plate 6 is provided with an oil seal cover plate through hole 60 for the roller shaft 2 to pass through.

[0037] An oil seal cover plate protrusion 61 is provided on one side where the oil seal cover plate 6 is connected to the oil seal seat protrusion 42 . When the oil seal cover plate 6 is fixed to the oil seal seat protrusion 42 , the oil seal cover plate protrusion 61 penetrates into the oil seal groove 420 and contacts the oil seal 5 .

[0038] The roller shaft 2 passes through the cylinder 1 , the oil seal cover plate 6 and the oil seal seat 4 , is fixedly connected to the inner sleeve of the bearing 3 , and is in sealing contact with the oil seal 5 .

[0039] The roller shaft 2 is in movable contact with the oil seal through hole 410 and the oil seal cover plate through hole 60 .

[0040] By adopting the above technical solution, the oil seal seat and the gear are detachably connected, which makes it easy to remove the oil seal seat and replace the oil seal regularly, so that the roller maintains the best sealing performance; the oil seal and the bearing are designed to be separated, that is, they are respectively arranged in different components, which can prevent the high temperature generated by the long-term rotation of the bearing from being transmitted to the oil seal, and avoid the oil seal from being in a high-temperature environment. It can not only ensure the sealing performance of the oil seal, but also extend the service life of the oil seal, thereby ensuring that the roller can operate for a long time in harsh environments.

[0041] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. An immersed sealing roller, characterized in that: include: A cylinder, a roller shaft, a bearing, an oil seal seat, an oil seal and an oil seal cover plate, wherein bearings are fixedly provided on the inner sides of both ends of the cylinder, and bearing seats are fixedly provided on the inner sides of both ends of the cylinder, a bearing seat through hole is provided on the bearing seat for the roller shaft to pass through, and a bearing step portion is also provided, the bearing is mounted on the bearing step portion, an oil seal groove is provided on one side of the oil seal seat, and an oil seal through hole is provided on the other side for the roller shaft to pass through, the oil seal is arranged in the oil seal groove, the oil seal cover plate is fixedly connected to the oil seal seat, an oil seal cover through hole is provided on the oil seal cover plate for the roller shaft to pass through, the oil seal seat is detachably connected to the cylinder, the roller shaft passes through the cylinder, the oil seal cover plate and the oil seal seat, and is fixedly connected to the bearing and in sealing contact with the oil seal; It also includes gears, two of which are fixedly connected to both ends of the cylinder, each of which is provided with a gear through-hole for the right end of the oil seal seat to extend into, and the oil seal seat is detachably connected to the cylinder cover plate; A gap between the bearing seat and the oil seal seat; The oil seal cover plate is provided with an oil seal cover plate protrusion on one side where the oil seal cover plate is connected to the oil seal seat. When the oil seal cover plate is fixed to the oil seal seat, the oil seal cover plate protrusion penetrates into the oil seal groove and contacts the oil seal. The inner sides of both ends of the cylinder are provided with cylinder step portions, and the bearing seat is installed on the cylinder step portions; The gear is provided with a gear step portion, and the end portion of the cylinder is provided on the cover plate step portion and fixed thereto; A sealing gasket is provided at the connection between the oil seal seat and the gear; The axis lines of the cylinder, bearing and oil seal groove are coaxially arranged; One or more oil seals are provided, and the outer side walls thereof are in contact with the side walls of the oil seal groove.

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