Waterproof and dustproof roller

Abstract

To provide a roller with waterproof and dustproof functions, which not only achieves waterproof and dustproof but also effectively improves the overall heat dissipation and fire resistance by selecting metal materials. [Solution] The waterproof and dustproof roller is provided with bearings 20 and metallic barrier devices 40 in bearing seats 12 at both ends of a roller body 10, a shaft 30 is inserted into the roller body via the bearings, and the barrier devices include a wheel portion outer end barrier member 41, a shaft portion inner end barrier member 42, a wheel portion inner end barrier member 43, and an end cover 44, which can be combined with each other. By forming a barrier chamber 16 of the bearing seat into a winding maze structure, it is possible to significantly extend the intrusion path of rainwater and dust, effectively preventing rainwater and dust from the external environment from invading the internal bearings.

Description

[Technical field]

[0001] This invention relates to a waterproof and dustproof roller, and more particularly to a roller that supports the movement of a conveyor belt used in a conveying device. [Background technology]

[0002] Currently, raw materials such as gravel and ore are transported by a conveying apparatus that includes a number of rollers spaced along a transport path and a conveyor belt surrounding the rollers, and the conveying apparatus transports the raw materials via the conveyor belt to a destination for further processing.

[0003] However, since the rollers of the conveying device are generally installed in an outdoor environment and are arranged in a line at a distance from the raw material collection site, they are not only affected by rainwater due to outdoor weather, but also by dust contained in the raw materials generated during the conveying operation of conveying raw materials such as gravel and ore by the conveying device. As a result, the rainwater and dust easily penetrate into the inside of the rollers while they are operating, causing the lubricating oil inside the rollers to emulsify and the bearings to wear out, preventing the rollers from rotating smoothly and shortening the rollers' service life.

[0004] In order to overcome the problem of rainwater and dust penetrating into the roller bearing, the roller of the current conveyor belt device is provided with a barrier device between the wheel and the shaft at the outer end of the bearing, and a stopper cover is provided at the outer end of the barrier device. Through the labyrinth-like winding gap structure of the barrier device and the shielding by the stopper cover, the path through which rainwater and dust can penetrate into the inside of the roller can be greatly extended, making it difficult for rainwater and dust to penetrate into the roller bearing, and increasing the service life of the roller.

[0005] Although current barrier devices make it difficult for rainwater and dust to penetrate into the bearings inside the roller, the structure of the barrier members is complicated to create a winding gap by combining multiple barrier members, so they are often made using plastic materials. However, since plastic materials are inferior in fire resistance and heat dissipation, there is a problem that the fire prevention of the current roller barrier devices is insufficient. Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention aims to provide a roller with waterproof and dustproof functions in order to solve the problem of the current barrier device inside the roller having insufficient fire resistance and heat dissipation. [Means for solving the problem]

[0007] To achieve the above object, the present invention provides the following waterproof and dustproof roller. A waterproof and dustproof roller including a roller body, two bearings, a shaft, and two barrier devices, the roller body including a hollow wheel and two bearing seats respectively installed at both ends of the wheel, each of the bearing seats including a bearing mounting part having a bearing mounting space and an outer end mounting part located at an outer end of the bearing mounting part and forming a barrier chamber extending outward from the bearing mounting space, the two bearings are respectively mounted on the bearing mounting parts of the two bearing seats, the shaft is disposed between the roller body and the bearing seat, and the roller body includes a hollow wheel and two bearing seats respectively installed at both ends of the wheel, each of the bearing seats includes a bearing mounting part having a bearing mounting space and an outer end mounting part forming a barrier chamber extending outward from the bearing mounting space, the two bearings are respectively mounted on the bearing mounting parts of the two bearing seats, the shaft is disposed between the roller body and the bearing seat, and the roller body includes a hollow wheel and two bearing seats respectively installed at both ends of the wheel. The barrier device is inserted into the main body and connects the two bearings via the two bearing seats, and the two barrier devices are respectively attached to the two bearing seats and located in the barrier chamber of the outer end mounting part, and include a ring portion outer end barrier member, a shaft portion inner end barrier member, a ring portion inner end barrier member, and an end cap, each of which is made of metal, and the ring portion outer end barrier member includes a positioning ring portion fixed to and in contact with the inner wall surface of the barrier chamber of the bearing seat, a radial bent portion formed on the outer end edge of the positioning ring portion and extending inward along the radial direction, and an inner wall of the radial bent portion. The shaft inner end barrier member has a positioning sleeve that is fitted onto the shaft and fixed thereto, a radial barrier portion that extends radially outward from the outer end edge of the positioning sleeve, and an axial end plate portion, and a communication passage is formed between the radial barrier portion and a radial bent portion of the annulus outer end barrier member, and the axial end plate portion extends from the outer edge of the radial barrier portion toward the inner end of the barrier chamber, and the annulus inner end barrier member is a positioning ring portion of the annulus outer end barrier member. and a curved extension portion, an outer passage communicating with the communication passage is formed between the fixed ring portion and an axial end plate portion of the shank inner end barrier member, the curved extension portion is formed on an inner end edge portion of the fixed ring portion and curvedly extends to a connection portion between a positioning sleeve of the shank inner end barrier member and the radial barrier portion, an inner passage is formed between the curved extension portion and the annulus inner end barrier member, and an annular barrier space is formed surrounding the annulus inner end barrier member and the shank inner end barrier member, the barrier space being:a roller with waterproof and dustproof functions, the roller communicating the outer passage with the inner passage, the end cap having a fixed sleeve fitted onto the shaft and positioned at the outer end of the shaft inner end barrier member, and a stopper extending radially from the outer end edge of the fixed sleeve and shielding the barrier chamber, an outer end passage is formed between the stopper and the wheel outer end barrier member, an annular isolation space is formed surrounding the end cap, the wheel outer end barrier member and the shaft inner end barrier member, and the isolation space communicates the outer end passage with the communication passage.

[0008] The waterproof and dustproof roller of the present invention is applied to a conveying device, and assists the belt of the conveying device in conveying work. The barrier member at the inner end of the shaft and the end cap of the barrier device are fixed to the shaft, the barrier member at the outer end of the ring and the barrier member at the inner end of the ring are fixed to the inner wall surface of the bearing seat, and the barrier member at the outer end of the ring, the barrier member at the inner end of the shaft, the barrier member at the inner end of the ring and the end cap are combined to form a winding path whereby the barrier space and the isolation space are connected to each other, effectively preventing rainwater and dust from the external environment from entering the internal bearing, thereby achieving the purpose of waterproofing and dustproofing.

[0009] Furthermore, the waterproof and dustproof roller of the present invention utilizes a metal barrier device and takes advantage of the characteristics of metal materials to provide excellent thermal conductivity, which not only effectively assists in heat dissipation but also greatly improves fire resistance. [Brief description of the drawings]

[0010] [Figure 1] 1 is a schematic cross-sectional view of a preferred embodiment of a waterproof and dustproof roller according to the present invention; FIG. [Diagram 2] 1 is a partial cross-sectional view of a preferred embodiment of a waterproof and dustproof roller according to the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] 1 and 2 show a preferred embodiment of the waterproof and dustproof roller according to the present invention. The roller includes a roller body 10, two bearings 20, a shaft 30, and two barrier devices 40.

[0012] As shown in Figures 1 and 2, the roller body 10 includes a hollow wheel 11 and two bearing seats 12 installed on both ends of the wheel 11, and each of the bearing seats 12 includes a bearing mounting portion 13 having a bearing mounting space 14, and an outer end mounting portion 15 located at the outer end of the bearing mounting portion 13 and forming a barrier chamber 16 extending outward from the bearing mounting space 14.

[0013] As shown in FIG. 1, two bearings 20 are mounted on the bearing mounting portions of the two bearing seats 12, respectively.

[0014] As shown in FIG. 1, a shaft 30 is inserted into the roller body 10 and connects the two bearings 20 via the two bearing seats 12 .

[0015] As shown in Figures 1 and 2, the two barrier devices 40 are respectively attached to the two bearing seats 12 and positioned within the barrier chamber 16 of the outer end mounting portion 15, and include a ring portion outer end barrier member 41, a shaft portion inner end barrier member 42, a ring portion inner end barrier member 43, and an end cap 44, each of which is made of metal.

[0016] As shown in Figure 2, the ring portion outer end barrier member 41 has a positioning ring portion 411 that is fixed to and abuts against the inner wall surface of the barrier chamber 16 of the bearing seat 12, a radial bent portion 412 that is formed on the outer end edge of the positioning ring portion 411 and extends inwardly along the radial direction, and an axial extension portion 413 that is formed on the inner edge of the radial bent portion 412 and extends toward the outer end of the barrier chamber 16.

[0017] As shown in Figure 2, the shaft inner end barrier member 42 has a positioning sleeve 421 that is fitted and fixed to the shaft 30, a radial barrier portion 422 that extends radially outward from the outer end edge of the positioning sleeve 421, and an axial end plate portion 423, and a communicating passage 161 is formed between the radial barrier portion 422 and the radial bend portion 412 of the annulus outer end barrier member 41, and the axial end plate portion 423 extends from the outer edge of the radial barrier portion 422 toward the inner end of the barrier chamber 16.

[0018] 2, the annular portion inner end barrier member 43 has a fixed ring portion 431 fixed to and in contact with the inside of the positioning ring portion 411 of the annular portion outer end barrier member 41, and a curved extension portion 432. An outer passage 162 communicating with the communication passage 161 is formed between the fixed ring portion 431 and the axial end plate portion 423 of the shank portion inner end barrier member 42, and the curved extension portion 432 is formed on the inner end edge portion of the fixed ring portion 431. The curved extension portion 432 also curves and extends to a connection portion between the positioning sleeve 421 of the shank portion inner end barrier member 42 and the radial barrier portion 422, and an inner passage 163 is formed between the curved extension portion 432 and the annular portion inner end barrier member 43, and an annular barrier space 164 is formed surrounding the annular portion inner end barrier member 43 and the shank portion inner end barrier member 42, and the barrier space 164 communicates between the outer passage 162 and the inner passage 163.

[0019] As shown in Figure 2, the end cap 44 has a fixed sleeve 441 that fits over the shaft 30 and is located at the outer end of the shank inner end barrier member 42, and a stopper portion 442 that extends radially from the outer end edge of the fixed sleeve 441 and shields the barrier chamber 16. An outer end passage 165 is formed between the stopper portion 442 and the annulus outer end barrier member 41, and an annular isolation space 166 is formed surrounding the end cap 44, the annulus outer end barrier member 41, and the shank inner end barrier member 42, and the isolation space 166 communicates between the outer end passage 165 and the communication passage 161.

[0020] As shown in FIG. 2, an annular outer ring space 167 is formed between the end cap 44, the ring portion outer end barrier member 41, and the bearing seat 12, and an external passage 168 is formed between the stop portion 442 of the end cap 44 and the bearing seat 12, and the outer ring space 167 communicates with the external passage 168 and the outer end passage 165.

[0021] As shown in Fig. 2, when the waterproof and dustproof roller according to the present invention is applied to a conveying device and conveying work is performed by assisting the conveyor belt of the conveying device, the roller shaft 30 connects the bearing seat 12 of the roller body 10 via the roller body 10 and two bearings 20. The roller body 10 rotates relative to the shaft 30. The shaft inner end barrier member 42 and the end cap 44 of the barrier device 40 are fixed to the shaft 30. The wheel outer end barrier member 41 and the wheel inner end barrier member 43 are fixed to the inner wall surface of the bearing seat 12. Therefore, when the roller body 10 rotates, the wheel outer end barrier member 41 and the wheel inner end barrier member 43 of the barrier device 40 can rotate relative to the shaft inner end barrier member 42 and the end cap 44.

[0022] 2, the ring portion outer end barrier member 41 and the ring portion inner end barrier member 43, in accordance with the shaft portion inner end barrier member 42 and the end cover 44, partition and form an inner passage 163, a barrier space 164, an outer passage 162, a communication passage 161, an isolation space 166, an outer end passage 165, an outer ring space 167, and an outer passage 168, which are connected in this order from the inside to the outside. As a result, the inside of the barrier device 40 is partitioned and formed into a winding maze structure, which significantly extends the intrusion path of rainwater and dust, thereby preventing rainwater and dust from the external environment from entering the bearing 20 and effectively achieving the purpose of waterproofing and dustproofing.

[0023] In addition, the outer end barrier member 41 of the barrier device 40, the inner end barrier member 42 of the shaft, the inner end barrier member 43 of the shaft, and the end cap 44 of the barrier device 40 are made of metal material, and by utilizing the characteristics of the metal material, it is possible to effectively improve the heat dissipation effect and provide good fire resistance. In addition, in a preferred embodiment of the waterproof and dustproof roller according to the present invention, the outer end barrier member 41 of the shaft, the inner end barrier member 42 of the shaft, the inner end barrier member 43 of the shaft, and the end cap 44 may be made of stainless steel material. This gives the barrier device 40 rust-resistant properties, and therefore the overall service life of the waterproof and dustproof roller can be increased. [Explanation of symbols]

[0024] 10 Roller body 11 Wheels 12 Bearing seat 13 Bearing mounting part 14 Bearing installation space 15 Outer end attachment part 16 Barrier Room 161 Communication passage 162 Outside passage 163 Inner passage 164 Barrier Space 165 Outer end passage 166 Isolated space 167 Outer Ring Space 168 Exterior Passage 20 Bearings 30 Shaft 40 Barrier Device 41 outer limbus barrier member 411 Positioning ring part 412 Radial bend 413 Axial extension part 42 Shaft inner end barrier member 421 Positioning sleeve 422 Radial Barrier Section 423 Axial end plate section 43 Inner end barrier member of limbus 431 Fixing ring part 432 Curved extension 44 End cover 441 Fixed sleeve 442 Stopper

Claims

1. A waterproof and dustproof roller including a roller body, two bearings, a shaft, and two barrier devices, The roller body includes a hollow wheel and two bearing seats respectively installed at both ends of the wheel, each of the bearing seats including a bearing mounting portion having a bearing mounting space and an outer end mounting portion located at an outer end of the bearing mounting portion and forming a barrier chamber extending outward from the bearing mounting space, the two bearings are mounted on the bearing mounting portions of the two bearing seats, respectively; The shaft is inserted into the roller body and connects the two bearings via the two bearing seats; The two barrier devices are attached to the two bearing seats, and are located in the barrier chambers of the outer end mounting parts, and each of the barrier devices includes a ring outer end barrier member, a shaft inner end barrier member, a ring inner end barrier member, and an end cap, each of which is made of metal; The ring portion outer end barrier member has a positioning ring portion fixed to and in contact with an inner wall surface of a barrier chamber of the bearing seat, a radially bent portion formed on an outer end edge of the positioning ring portion and extending inward along a radial direction, and an axially extending portion formed on an inner edge of the radially bent portion and extending toward the outer end of the barrier chamber, The shaft inner end barrier member has a positioning sleeve that is fitted onto and fixed to the shaft, a radial barrier portion that extends radially outward from an outer end edge of the positioning sleeve, and an axial end plate portion, and a communication passage is formed between the radial barrier portion and a radial bent portion of the ring outer end barrier member, and the axial end plate portion extends from an outer edge of the radial barrier portion toward the inner end of the barrier chamber, the annulus inner end barrier member has a fixed ring portion fixedly provided on and in contact with the inside of the positioning ring portion of the annulus outer end barrier member, and a curved extension portion, an outer passage communicating with the communication passage is formed between the fixed ring portion and the axial end plate portion of the shank inner end barrier member, the curved extension portion is formed on the inner end edge portion of the fixed ring portion and curvedly extends to a connection portion between the positioning sleeve of the shank inner end barrier member and the radial barrier portion, an inner passage is formed between the curved extension portion and the annulus inner end barrier member, an annular barrier space is formed surrounding the annulus inner end barrier member and the shank inner end barrier member, and the barrier space communicates between the outer passage and the inner passage, the end cap has a fixed sleeve fitted onto the shaft and positioned at the outer end of the shank inner end barrier member, and a stopper extending radially from the outer end edge of the fixed sleeve and shielding the barrier chamber, an outer end passage is formed between the stopper and the annulus outer end barrier member, an annular isolation space is formed surrounding the end cap, the annulus outer end barrier member and the shank inner end barrier member, and the isolation space communicates between the outer end passage and the communication passage. Waterproof and dustproof roller.

2. 2. The roller with waterproof and dustproof functions as described in claim 1, characterized in that an annular outer ring space is formed between the end cap, the wheel outer end barrier member and the bearing seat, and an external passage is formed between the stopper portion of the end cap and the bearing seat, and the outer ring space communicates with the external passage and the outer end passage.

Images