TWM462258U - Roller having waterproof and dustproof functions - Google Patents

Description

Waterproof and dustproof roller

This creation is about a kind of roller, especially a roller with waterproof and dustproof function.

Belt conveyor equipment is widely used in the transportation of sand and ore. It drives a plurality of rollers to drive a conveyor belt to transport materials. Due to the transportation of sandstone, ore and other materials, it is mostly carried out in outdoor open spaces. In this environment, in addition to the large amount of dust generated during the transportation of sand and ore, there is still sand in the external environment. As well as rainwater, etc., if the dust, sand or rainwater enters the inside of the roller, the roller will not run smoothly, and the service life of the roller will be reduced.

In order to make the roller have the function of waterproof and dustproof, the roller currently known is mostly provided with a waterproof and dustproof structure in the bearing device inside the two ends of the roller body of the roller, and the waterproof and dustproof structure mainly adopts a combination of a plurality of opposing members of the barrier member. The plurality of barrier members are arranged relative to each other between the bearing and the outer cover of the bearing seat, so that a labyrinth-like meandering gap is formed between the barrier members, and the outer cover provided on the outer side of the bearing seat is matched, so as to avoid dust or rain, etc. Directly enter the waterproof and dustproof purpose between the bearing and the mandrel.

However, in the structure of the front roller, although it can utilize the plural barrier The members are arranged in a row to form a labyrinth-like meandering gap, which reduces the distance between the direct bearing and the axle of the water or dust outside the roller, and even if the outer cover is provided outside the bearing seat, there is still a small gap between the outer cover and the bearing housing. The meandering small gap between the connecting members, the moisture and fine dust outside the roller will still enter between the bearing and the axle through the small gap between the outer cover and the bearing seat and the meandering gap between the blocking members, causing dust and Water vapor will still accumulate inside the roller, which will affect the smooth running of the roller.

The main purpose of this creation is to provide a waterproof and dustproof roller, and to create a new one to improve the waterproof and dustproof effect of the existing roller.

In order to achieve the pre-existing purpose, the water-proof and dustproof roller provided by the present invention comprises a roller body, a two-bearing device, two waterproof and dust-proof devices, and an axle, and an axially-through shaft hole is formed in the roller body. The bearing devices are respectively disposed at two ends of the shaft hole of the roller body, and the two waterproof and dustproof devices are respectively installed in the two bearing devices, and the wheel shaft is disposed in the roller body, the two bearing device and the two waterproof and dustproof devices; wherein: The two bearing devices each include a bearing seat, a bearing and an outer cover. The bearing housing is fixed in the shaft hole of the roller body. The bearing housing forms a first receiving groove and a second capacity from the inside to the outside. The groove is disposed, the bearing is disposed in the first accommodating groove, and an inner end wall having a middle hole is formed inside the first accommodating groove, and an inner diameter of the second accommodating groove is larger than the first accommodating groove, and the outer cover is formed a shaft is perforated, the axle passes through the outer cover, the bearing and the inner end wall of the bearing seat, and the inner wall surface of the shaft perforation of the outer cover is attached to the outer peripheral surface of the axle; the two waterproof and dustproof devices each comprise a first capillary gasket, First a barrier ring, a second barrier ring and a second capillary spacer, the first capillary gasket is disposed between the bearing and the inner end wall of the bearing housing, and the inner edge of the first capillary spacer contacts the axle, the first A blocking ring and a second blocking ring are disposed in the second receiving groove of the bearing seat, the first blocking ring is assembled on the peripheral wall of the second receiving groove of the bearing seat, and the second blocking ring is assembled on the axle The first barrier ring is not in contact with the second barrier ring, and forms a curved small gap between each other. The second capillary gasket is disposed between the first barrier ring, the outer cover and the bearing seat, and is sealed to the bearing seat. The outer edge of the second receiving groove peripheral wall and the outer peripheral surface of the first blocking ring are joined to the outer edge.

By the above-mentioned waterproof and dustproof roller, the first and second barrier rings are disposed in the bearing device at both ends of the roller body, and the curved small gap is formed by the multi-layer staggered arrangement between the first and second barrier rings. And an outer cover is arranged on the outer side of the bearing seat, and the inner wall surface of the shaft perforation of the outer cover is attached to the axle, and the rainwater or dust outside the roller can be prevented from directly entering between the bearing and the axle inside the roller body, and the feature of the creation is further a first capillary gasket is disposed between the inner end wall of the bearing housing and the bearing, and a second capillary gasket is disposed between the first barrier ring on the inner side of the outer cover and the bearing housing, thereby setting a specific position in the bearing device First, the second wool gasket has high water vapor and dust barrier ability for most of its wool fibers, and can block the moisture and dust intrusion outside the roller to improve the waterproof and dustproof effect of the roller.

1‧‧‧Roller body

10‧‧‧ wheel body

101‧‧ ‧ ribs

11‧‧‧Rigid metal tube

12‧‧‧Axis hole

2‧‧‧ bearing device

20‧‧‧ bearing housing

201‧‧‧First accommodating slot

202‧‧‧Second accommodating slot

203‧‧‧ Cover assembly slot

204‧‧‧ring

205‧‧‧ rib

206‧‧‧ inner end wall

207‧‧‧中孔

21‧‧‧ bearing

210‧‧‧ buckle

22‧‧‧ Cover

221‧‧‧Axis perforation

222‧‧‧limit hook

223‧‧‧ ring convex

3‧‧‧Waterproof and dustproof device

30‧‧‧First wool gasket

31‧‧‧First barrier ring

311‧‧‧ First ring base

312‧‧‧First inner ring wall

313‧‧‧First outer ring wall

314‧‧‧The first intermediary ring wall

32‧‧‧Second barrier ring

321‧‧‧ second ring base

322‧‧‧Second inner ring wall

323‧‧‧Second outer ring wall

324‧‧‧Second intermediary ring wall

33‧‧‧Second wool gasket

34‧‧‧Small gap

4‧‧‧Axle

40‧‧‧ Ring groove

FIG. 1 is a partially exploded perspective view of a preferred embodiment of a roller with water and dust resistance.

Figure 2 is a cross-sectional view showing a preferred embodiment of the roller of Figure 1.

Figure 3 is a partial cross-sectional perspective view of the preferred embodiment of the roller of Figure 1.

Figure 4 is a partial enlarged view of a cross section of a preferred embodiment of the roller of Figure 2;

FIG. 5 is a partial cross-sectional view showing another preferred embodiment of the roller with water and dust resistance.

Figure 6 is an enlarged schematic view showing the combination of the cover and the axle of Figures 4 and 5.

As shown in FIG. 1 , a preferred embodiment of the tire with water and dust resistance is disclosed. The roller comprises a roller body 1 , two bearing devices 2 , two waterproof and dustproof devices 3 , and an axle 4 . A shaft hole 12 is formed in the axial direction. The two bearing devices 2 are respectively disposed at two ends of the shaft hole 12 of the roller body 1. The two waterproof and dustproof devices 3 are respectively installed in the bearing device 2, and the wheel shaft 4 is disposed on the shaft The roller body 1, the two bearing device 2 and the two waterproof and dustproof devices 3 are included.

As shown in FIG. 1 to FIG. 4, the roller body 1 has a circular hollow wheel body 10. The wheel body 10 is distributed on the inner side wall thereof to form a plurality of axially extending ribs 101, and the space inside the wheel body 10 is The shaft hole 12, or the roller body 1 may be provided with a circular rigid metal tube 11 (such as an iron tube or the like) inside the hollow wheel body 10. The outer peripheral surface of the rigid metal tube 11 contacts the wheel body 10. The ribs 101 of the side walls are fixed to the inside of the wheel body 10, and the tube holes inside the rigid metal tube 11 are used as the shaft holes 12.

As shown in FIG. 2 to FIG. 4 , the bearing device 2 includes a bearing housing 20 , a bearing 21 , and an outer cover 22 . The bearing housing 20 is fixed in the shaft hole 12 of the roller body 1 . In a preferred embodiment, the outer circumferential surface of the bearing housing 20 is distributed to form a plurality of ribs 205, and The end of the plurality of ribs 205 abuts against the inner tube wall of the rigid metal tube 11, or, as shown in FIG. 5, when the roller body 1 is not provided with a rigid metal tube, the plurality of ribs 205 are offset from the ribs 101 of the wheel body 10, and are convex. The end of the rib 205 abuts against the inner side wall of the wheel body 10.

In the foregoing bearing device 2, as shown in FIG. 2 to FIG. 4, a first accommodating groove 201 and a second accommodating groove 202 are formed from the inside to the outside of the bearing housing 20, or the bearing housing 20 is further in the second An outer cover fitting groove 203 is formed on the outer side of the accommodating groove 202. The first accommodating groove 201 corresponds to the bearing 21 for providing the bearing 21 to be mounted therein. The bearing shaft 12 is provided therein, and the bearing 21 can be buckled on the axle. The inner ring wall 206 having the middle hole 207 is formed on the inner side of the first receiving groove 201, and the inner diameter of the second receiving groove 202 is larger than the first inner hole 207. The housing groove 201 has an inner diameter larger than the second receiving groove 202, and the outer cover 22 is mounted in the outer cover fitting groove 203 of the bearing housing 20, and the wheel shaft 4 is disposed therein.

As shown in FIG. 2 to FIG. 4, in the preferred embodiment, a shaft through hole 221 is formed in the outer cover 22, and the axle shaft 4 is provided through the shaft through hole 221. As shown in FIG. 6, the outer cover 22 is The inner wall surface of the shaft through hole 221 is adhered to the axle 4, and the moisture or dust outside the outer cover 22 is prevented from entering between the inner wall surface of the shaft through hole 221 and the axle 4; the outer cover 22 can still face the inner side of the bearing housing 20. A plurality of limit hooks 222 are formed on the hole of the shaft hole 221, and a ring groove 40 is formed on the wheel shaft 4. The limit hook 222 of the outer cover 22 extends into the ring groove 40, so that the outer cover 22 is assembled and positioned, and the limit hook 222 is used. The combination of the ring grooves 40 provides a limit function of the outer cover 22, so that the outer cover 22 does not come out of the axle 4, and the limit hook 222 and the ring groove 40 are For the loose fit, it is ensured that the inner wall surface of the shaft hole 221 of the outer cover 22 closely fits the combined state of the axle 4 .

As shown in FIG. 2 to FIG. 4, the outer cover 22 has a slit without contacting the bearing housing 20, and the outer cover 22 forms a ring convex portion 223 toward the outer peripheral edge of one side of the inner side of the bearing housing 20, and the bearing housing 20 is mounted on the outer cover thereof. A ring recess 204 is formed on the inner side of the 203, and the ring recess 204 provides the ring protrusion 223 to project therein.

As shown in FIG. 2 to FIG. 4 , the two waterproof and dustproof devices 3 each include a first capillary spacer 30 , a first barrier ring 31 , a second barrier ring 32 , and a second capillary spacer 33 . The first capillary spacer 30 and the second capillary spacer 33 can be a circular sheet made of a wool sheet such as a wool blanket, and have a good function of blocking moisture and dust by using most of the wool fibers. The first capillary spacer 30 is disposed between the bearing 21 and the inner end wall of the bearing housing 20, and the inner annular edge of the first capillary spacer 30 contacts the axle 4, the first barrier ring 31 and the second The blocking ring 32 is respectively disposed in the second receiving groove 202 of the bearing housing 20, the first blocking ring 31 is fixed to the peripheral wall of the second receiving groove 202 of the bearing housing 20, and the second blocking ring 32 is fixed to the axle 4 The first barrier ring 31 and the second barrier ring 32 are oppositely disposed without contacting each other to form a radially curved fine gap 34 therebetween, and the first barrier ring 31 and the second spacer ring 32 may be further filled with lubricating oil. The second capillary spacer 33 is disposed between the first barrier ring 31, the outer cover 22 and the bearing housing 20, and is blocked on the peripheral wall of the second receiving groove 202 of the bearing housing 20 and the first blocking ring 3 The outer edge of the joint portion between the outer peripheral surfaces makes it impossible for water vapor or dust to pass through the gap between the peripheral wall of the second accommodating groove 202 of the bearing housing 20 and the outer peripheral surface of the first blocking ring 31 from the outside.

As shown in FIG. 2 to FIG. 4, the first barrier ring 31 includes a first ring base 311 and a first inner ring wall 312 and a first extending from the first ring base 311 and the outer periphery in the same direction. The outer ring wall 313, the first ring base 311 is spaced apart from the first outer ring wall 312 and the first outer ring wall 313 to form at least one first intermediate ring wall 314, and the first blocking ring 31 has a first outer ring wall 313 is fixed to the second receiving groove 202 of the bearing housing 20; the second blocking ring 32 includes a second ring base portion 321 and a second inner ring extending from the second ring base portion 321 and the outer peripheral edge in the same direction The wall 322 is separated from the second outer ring wall 323 by a second inner ring wall 322 and the second outer ring wall 323 to form at least one second intermediate ring wall 324. The second blocking ring 32 is The second inner ring wall 322 is fixed to the axle 4, and the second outer ring wall 323, the second intermediate ring wall 324 and the second inner ring wall 322 of the second blocking ring 32 are respectively connected to the first outer ring of the first blocking ring 31. The wall 313, the first intermediate ring wall 314, and the first inner ring wall 312 are misaligned and not in contact with each other to form a radially curved fine gap 34 therebetween.

When the creative roller is used, the roller can be applied to the belt conveying device, and the wheel axle of the roller is connected to the driving mechanism or pivoted on the frame, and the roller body on the outside of the roller is provided with the conveying belt to be wound thereon, so that the roller It can drive the conveyor belt to transport the material. As shown in FIG. 1 , FIG. 3 and FIG. 4 , in the process of using the creative roller, the first blocking ring 31 and the second blocking ring 32 are disposed inside the bearing device 2 at both ends of the roller body 1 , and the first blocking is utilized. The outer gap 22 is arranged in a plurality of layers between the ring 31 and the second barrier ring 32, and the outer cover 22 is disposed outside the bearing housing 20, so that rain or dust outside the roller can be prevented from directly entering the inside of the roller body 1. The bearing 21 and the axle 4 are interposed.

Furthermore, the roller of the present invention further provides a first capillary spacer 30 between the inner end wall 206 of the bearing housing 20 and the bearing 21, and is disposed between the first barrier ring 31 and the bearing housing 20 on the inner side of the outer cover 22. a second capillary spacer 33, whereby the first capillary spacer 30 and the second capillary spacer 33 are disposed at a specific position where the bearing device 2 may invade moisture and dust, and the first capillary spacer 30 and the second capillary spacer 30 are used. Most of the wool fibers in the wool gasket 33 have high water vapor and dust barrier ability, and can effectively block the moisture and dust intrusion outside the roller, and improve the waterproof and dustproof effect of the roller.

1‧‧‧Roller body

10‧‧‧ wheel body

11‧‧‧Rigid metal tube

12‧‧‧Axis hole

2‧‧‧ bearing device

20‧‧‧ bearing housing

205‧‧‧ rib

206‧‧‧ inner end wall

21‧‧‧ bearing

22‧‧‧ Cover

3‧‧‧Waterproof and dustproof device

30‧‧‧First wool gasket

31‧‧‧First barrier ring

32‧‧‧Second barrier ring

33‧‧‧Second wool gasket

34‧‧‧Small gap

4‧‧‧Axle

Claims (9)

The utility model relates to a roller with waterproof and dustproof function, which comprises a roller body, two bearing devices, two waterproof and dustproof devices and an axle. The roller body forms an axial through hole, and the two bearing devices are respectively arranged on the roller body. The two waterproofing and dustproof devices are respectively installed in the two bearing devices, and the axle is disposed in the roller body, the two bearing device and the two waterproof and dustproof devices; wherein: the two bearing devices each comprise a bearing a bearing, a bearing and an outer cover, the bearing seat is fixed in the shaft hole of the roller body, wherein the bearing seat forms a first receiving groove and a second receiving groove from the inside to the outside, and the bearing is installed in the first In the accommodating groove, an inner end wall having a middle hole is formed on the inner side of the first accommodating groove, and an inner diameter of the second accommodating groove is larger than the first accommodating groove, a shaft hole is formed in the outer cover, and the outer sleeve is pierced by the wheel shaft. a bearing and a hole in the inner end wall of the bearing housing, and the inner wall surface of the shaft perforation of the outer cover is attached to the outer peripheral surface of the axle; the two waterproof and dustproof devices each comprise a first capillary gasket, a first barrier ring, and a second Barrier ring and a second wool pad The first capillary gasket is disposed between the bearing and the inner end wall of the bearing housing, and the inner edge of the first capillary gasket contacts the axle, and the first barrier ring and the second barrier ring are opposite to the bearing housing. In the second receiving groove, the first blocking ring is assembled on the peripheral wall of the second receiving groove of the bearing seat, the second blocking ring is assembled on the axle, and the first blocking ring is not in contact with the second blocking ring, and between each other Forming a curved small gap, the second capillary gasket is disposed between the first barrier ring, the outer cover and the bearing seat, and is sealed on the joint portion of the second receiving groove peripheral wall of the bearing seat and the outer peripheral surface of the first blocking ring Outer edge. A waterproof and dustproof roller according to claim 1, wherein The outer cover faces the inner side of the bearing housing to form a plurality of limit hooks on the edge of the shaft through hole, and a ring groove is formed on the axle, and the limit hook of the outer cover protrudes into the ring groove to be hooked and positioned. The water-proof and dustproof roller according to claim 2, wherein the bearing seat forms an outer cover fitting groove on the outer side of the second receiving groove, and the inner cover fitting groove has an inner diameter larger than the second receiving groove, and the outer cover is attached It is disposed in the outer cover fitting groove of the bearing seat, and the shaft perforation hole wall of the outer cover contacts the axle, and the outer cover does not contact the bearing seat and has a slit. The water-proof and dustproof roller according to claim 3, wherein the outer cover forms a ring convex portion toward one outer peripheral edge of the inner side of the bearing seat, and the bearing seat forms a ring concave portion on the inner side of the outer cover fitting groove, and the annular concave portion provides a ring convex portion. The department reached into it. The water-proof and dustproof roller according to any one of claims 1 to 4, wherein the first barrier ring comprises a first ring base and respectively extend in the same direction from the inner and outer circumferences of the first ring base a first inner ring wall and a first outer ring wall, wherein the first ring base is spaced apart from the first outer ring wall and the first outer ring wall to form at least one first intermediate ring wall, and the first blocking ring is first The outer ring wall is fixed to the second receiving groove peripheral wall of the bearing seat; the second blocking ring comprises a second ring base portion and a second inner ring wall and a second axially extending from the inner and outer peripheral edges of the second ring base portion a second outer ring wall, the second ring base is spaced apart from the second inner ring wall and the second outer ring wall to form at least one second intermediate ring wall, and the second blocking ring is fixed to the axle by the second inner ring wall thereof. The second outer ring wall, the second intermediate ring wall and the second inner ring wall of the second blocking ring are respectively arranged offset from the first outer ring wall, the first intermediate ring wall and the first inner ring wall of the first blocking ring. Contact to form a fine gap that is radially curved with respect to each other. The water-proof and dust-proof roller according to any one of claims 1 to 4, wherein the roller body has a circular hollow wheel body, and the wheel body is distributed on the inner side wall thereof to form a plurality of axially extending ribs. The space inside the wheel body is the shaft hole, and the outer circumferential surface of the bearing seat is distributed to form a plurality of ribs, and the plurality of ribs are offset from the ribs of the wheel body, and the end of the rib abuts against the sidewall of the wheel body. The roller with waterproof and dustproof function according to claim 5, wherein the roller body has a circular hollow wheel body, and the wheel body is distributed on the inner side wall thereof to form a plurality of axially extending ribs, and the space inside the wheel body is For the shaft hole, the outer circumferential surface of the bearing seat is distributed to form a plurality of ribs, and the plurality of ribs are offset from the ribs of the wheel body, and the end of the rib abuts against the sidewall of the wheel body. The water-proof and dustproof roller according to any one of claims 1 to 4, wherein the roller body has a circular hollow wheel body, and the sidewalls of the wheel body are distributed to form a plurality of axially extending ribs in the wheel body. The portion is provided with a circular rigid metal tube. The outer peripheral surface of the rigid metal tube contacts the rib of the inner wall of the wheel body and is fixed inside the wheel body. The tube hole inside the rigid metal tube serves as a shaft hole, and the outer peripheral surface of the bearing seat is distributed to form a plurality of a rib, the end of the plurality of ribs abutting the inner wall of the rigid metal tube. The roller of the waterproof and dustproof function of claim 5, wherein the roller body has a circular hollow wheel body, and the sidewalls of the wheel body are distributed to form a plurality of axially extending ribs, and the wheel body is internally provided with a circular shape. a rigid metal tube, the outer peripheral surface of the rigid metal tube is fixed to the inner side of the wheel body by a rib of the inner side wall of the wheel body, and the tube hole inside the rigid metal tube is used as a shaft hole, and the outer peripheral surface of the bearing seat is distributed to form a plurality of ribs, and the plurality of convex ribs The end of the rib abuts against the inner wall of the rigid metal tube.