CN209796640U - Sealing device of anti-channeling type polymer bearing roller - Google Patents

Abstract

A sealing device of a channeling-preventing type polymer carrier roller belongs to the field of conveying machinery. The method is characterized in that: the roller bearing comprises a bearing seat (2), a sealing assembly and a clamp spring (8), wherein a bearing seat step (201) is arranged on the outer circumferential surface of the bearing seat (2), the bearing seat step (201) is installed in a matched mode with a roller body clamping groove (101) formed in a roller body (1), the play of the bearing seat (2) is inhibited, a large sealing cover (5) tightly pushes a bearing (10) through a tightly-pushing inner sealing ring (3), the clamp spring (8) tightly pushes a small sealing cover (7), the small sealing cover (7) tightly pushes an outer sealing ring (4), the outer sealing ring (4) tightly pushes the bearing (10), the play of the bearing (10) is inhibited, the inner sealing ring (3) and the outer sealing ring (4) form a labyrinth seal, a sealing circular sealing pipe (503) arranged on the large sealing cover (5), a sealing ring (6) and the small sealing cover (7) form a labyrinth seal.

Description

Sealing device of anti-channeling type polymer bearing roller

Technical Field

A sealing device of a channeling-preventing type polymer carrier roller belongs to the field of conveying machinery.

Background

The carrier roller is an important rotating part of the belt conveyor, bears more than 70% of resistance of the belt conveyor, and has a high quality requirement on the carrier roller. In recent years, as the conveying amount of the belt conveyor is increased, the conveying distance is increased, and the quality of the idler is increased. The bearing sealing and anti-creep properties of the idler have a significant impact on the quality and life of the idler. In the prior art, the improvement of the sealing performance only focuses on the sealing structure, the retainer ring is used for preventing the bearing from moving, if the precision of the retainer ring is insufficient in the processing process, the change of the sealing clearance causes the rotation of the carrier roller or the blockage of the carrier roller when the carrier roller moves in the operation process, the service life of the carrier roller is influenced, and even the safety problem occurs.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the anti-channeling sealing device for the polymer carrier roller is provided, the anti-channeling capacity and the bearing capacity of the carrier roller are enhanced, and the service life of the carrier roller is prolonged.

The utility model provides a technical scheme that its technical problem adopted is: this sealing device of anti-channeling type polymer bearing roller, its characterized in that: comprises a bearing seat, a sealing assembly and a fastener, wherein the outer circumference of the bearing seat is provided with a bearing seat step, the inner surface of the roller body is provided with a roller body clamping groove, the bearing seat and the roller body are clamped with the roller body clamping groove in a matching way through the bearing seat step, the sealing assembly comprises an inner sealing ring, an outer sealing ring, a large sealing cover and a small sealing cover, wherein a bearing is sequentially installed on the bearing seat from inside to outside along the axis of the roller shaft, the inner sealing ring and the large sealing cover are arranged on the bearing seat, the outer ring of the bearing is pressed by the end face of one end of the inner sealing ring, a circumference platform is arranged on the outer side of the other end of the inner sealing ring, the large sealing cover is installed on the inner side of the end part of the bearing seat in an interference fit mode, the circumference platform is pressed by one end of the large sealing cover, the outer sealing ring is installed on the roller shaft and located in the bearing.

Preferably, the bearing seat step is right trapezoid along the axis cross section of the roller shaft, the bevel edge of the bearing seat step is positioned on one side of the roller shaft (9) close to the middle part, a bearing seat positioning hole is further formed in the inner surface of the roller body, the end face of one end of the bearing seat is attached to the bearing seat positioning hole tightly, and the bearing seat is installed on the inner side of the end part of the roller body in an interference fit mode.

Preferably, the axis along the roller has set gradually roller shaft hole, first ladder hole and second ladder hole from inside to outside on the bearing frame, and the aperture of second ladder hole is greater than the aperture of first ladder hole, and the aperture of first ladder hole is greater than the aperture in roller shaft hole, and roller shaft hole aperture is greater than the roller diameter and is less than the bearing inner race diameter.

preferably, the bearing is installed in the first step inner hole in an interference mode, one side end face of the bearing is tightly attached to the first step face, and the first step face is located between the roller shaft hole and the first step inner hole.

Preferably, the inner sealing ring is arranged in the first step inner hole in an interference mode, the inner sealing ring is located on one side, far away from the first step face, of the bearing, the circumferential platform of the inner sealing ring is attached to the second step face, the second step face is located between the first step inner hole and the second step inner hole, and a gap is reserved between the circumferential face of the circumferential platform and the second step inner hole.

Preferably, big sealed lid is installed to second ladder hole interference, the circumference terminal surface of big sealed lid compresses tightly the circumference platform of inner seal circle, be provided with sealed lid step on the circumference surface of big sealed lid, sealed lid step is right trapezoid along the roller axis cross-section, and the hypotenuse of sealed lid step is located the one side that the roller is close to the middle part, second ladder hole draw-in groove has been seted up in the second ladder hole, big sealed lid passes through second ladder hole draw-in groove and sealed lid step cooperation joint with the bearing frame, the end cover off-plate edge of big sealed lid is equipped with the tapered step, second ladder hole is equipped with positioning groove, the tapered step is installed in positioning groove.

Preferably, one side of keeping away from the circumference surface on the end cover face of big sealed lid is provided with sealed pipe, sealed pipe is coaxial with the roller, the pipe diameter of sealed pipe is greater than the external seal circle diameter, sealing assembly still includes the sealing ring, the sealing ring is installed on sealed pipe, little sealed lid is equipped with outer annular body and interior annular body, there is the inner ring groove between little sealed lid installation ring body and the interior annular body, sealed pipe stretches into the inner ring groove and gapped with the inner ring groove, there is the outer annular groove between interior annular body and the outer annular body, the sealing ring stretches into the outer annular groove and gapped with the outer annular groove, sealed pipe, sealing ring and little sealed lid form labyrinth seal.

Preferably, the small sealing cover mounting ring body is in interference fit with the roller shaft, the end face of the small sealing cover is provided with a mounting boss, the inner sealing ring is provided with an inner sealing ring mounting ring body, the inner sealing ring mounting ring body is mounted in the first step inner hole in interference fit, the fastener is a clamp spring, and the clamp spring is mounted on the roller shaft and compresses the mounting boss.

Preferably, the outer sealing ring is in interference fit with the roller shaft, an inner ring body and an inner ring outer ring body are arranged on the inner sealing ring, an inner sealing ring groove is formed between the inner ring body and the inner ring outer ring body, an outer ring inner ring body and an outer ring body are arranged on the outer sealing ring, an outer sealing ring groove is formed between the outer ring inner ring body and the outer ring body, the inner ring body extends into the outer sealing ring groove and is arranged at intervals with the inner wall of the outer sealing ring groove, the outer ring inner ring body extends into the inner sealing ring groove and is arranged at intervals with the inner wall of the inner sealing ring groove.

Preferably, the sealing component is made of ABS material.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

1. The outer periphery of the bearing seat is provided with bearing seat steps which are clamped in the groove of the roller body, so that the stability is good, and the bearing seat play can be effectively inhibited.

2. Be provided with sealed lid step on the big sealed lid circumference surface, sealed lid step is right trapezoid along roller axis direction cross-section, and the hypotenuse of sealed lid step is located one side that the roller is close to the middle part, second ladder hole draw-in groove has been seted up in the second ladder hole, big sealed lid passes through second ladder hole draw-in groove and sealed lid step cooperation joint with the bearing frame, the bearing capacity of bearing roller has been strengthened, big sealed lid compresses tightly the inner seal circle through compressing tightly the circumference platform, can restrain the drunkenness of bearing, the life of extension bearing roller.

3. The inner sealing ring and the outer sealing ring form labyrinth sealing, the large sealing cover, the small sealing cover and the sealing ring form labyrinth sealing, and the sealing effect is good.

4. The end face of the small sealing cover is provided with an installation boss, and the clamp spring is installed on the roller shaft and tightly pressed on the installation boss to tightly press the outer sealing ring, so that the axial movement of the bearing is inhibited, and the axial load capacity of the carrier roller is enhanced.

5. The sealing component is made of ABS material, and is light and environment-friendly.

Drawings

Fig. 1 is an overall schematic view of a carrier roller.

Fig. 2 is a schematic view of a bearing seat.

Fig. 3 is a schematic view of a labyrinth seal formed by an inner seal ring and an outer seal ring.

Fig. 4 is a schematic view of a large sealing cover.

Fig. 5 is a schematic view of a small sealing cap.

FIG. 6 is a schematic view of a labyrinth seal formed by a large seal cover, a small seal cover and a seal ring.

Wherein: 1. the roller comprises a roller body 101, a roller body clamping groove 102, a bearing seat positioning hole 2, a bearing seat 201, a bearing seat step 202, a roller shaft hole 203, a first step surface 204, a first step inner hole 205, a second step surface 206, a second step inner hole 207, a second step inner hole clamping groove 208, a positioning groove 3, an inner sealing ring 301, a circumferential platform 302, an inner ring 303, an inner ring outer ring 304, an inner sealing ring groove 305, an inner sealing ring installation ring body 4, an outer sealing ring 401, an outer ring inner ring 402, an outer ring 403, an outer sealing ring groove 5, a large sealing cover 501, a sealing cover step 502, a tapered step 503, a sealing circular pipe 6, a sealing ring 7, a small sealing cover 701, an installation ring body 702, an inner ring body, an outer ring body 704, an inner ring groove 705, an, A roll shaft 10 and a bearing.

Detailed Description

Fig. 1 ~ 6 shows a preferred embodiment of the present invention, which is further described below with reference to fig. 1 ~ 6.

Referring to fig. 1, the sealing device of the anti-channeling polymer carrier roller comprises a bearing seat 2, a sealing assembly and a clamp spring 8, wherein the bearing seat 2 is in interference fit with a roller body 1, a roller body clamping groove 101 is formed in the inner surface of the roller body, the sealing assembly comprises an inner sealing ring 3, an outer sealing ring 4, a large sealing cover 5 and a small sealing cover 7, a bearing 10, the inner sealing ring 3 and the large sealing cover 5 are sequentially installed in the bearing seat 2 from inside to outside along the axis of a roller shaft 9, the inner sealing ring 3 is in interference fit with the bearing seat 2, the outer sealing ring 4 is in interference fit with the roller shaft 9, the large sealing cover 5 is in interference fit with the bearing seat 2, the outer ring of the bearing 10 is pressed by the end face at one end of the inner sealing ring 3, the other end of the inner sealing ring 3 is contacted with the large sealing cover 5, the other end of the small sealing cover is tightly attached to one end of the small sealing cover 7, the other end of the small sealing cover 7 is tightly attached to the clamp spring 8, the clamp spring 8 is arranged on the roller shaft 9, the bearing seat positioning hole 102 is further formed in the inner surface of the roller body 1, and the end face of one end of the bearing seat 2 is tightly attached to the bearing seat positioning hole 102.

Referring to fig. 2 ~ 4, a bearing seat step 201 is disposed on the outer circumferential surface of a bearing seat 2, the cross section of the bearing seat step 201 along the axis of a roller shaft 9 is a right trapezoid, and the bevel edge is located on one side of the roller shaft 9 close to the middle, the bearing seat step 201 is matched with a roller body clamping groove 101, the bearing seat 2 is sequentially provided with a roller shaft hole 202, a first step inner hole 204 and a second step inner hole 206 from inside to outside along the axis of the roller shaft 9, the aperture of the second step inner hole 206 is larger than that of the first step inner hole 204, the aperture of the first step inner hole 204 is larger than that of the roller shaft hole 202, the aperture of the roller shaft hole 202 is larger than that of the roller shaft 9 and smaller than the diameter of an outer ring of a bearing 10, a first step surface 203 is located between the roller shaft hole 202 and the first step inner hole 204, a second step surface 205 is located between the first step inner hole 204 and the second step inner hole 206, an outer ring 4 is in interference fit with the roller shaft 9, an inner ring 302 and an inner ring 303 are disposed between the inner ring groove and an outer ring 2, an inner ring groove 302 and an outer ring 501 are disposed between the outer ring, a labyrinth ring 401 and an outer ring 501, a labyrinth ring 401 is disposed between the outer ring 401, a seal ring 401 and an outer ring 501, a seal ring 501 is disposed between the outer ring 401, a seal ring 501, a seal ring 3, a seal ring 501 is disposed on the outer ring 401 outer ring 501, a seal ring 401 seal ring 501, a seal ring 401 is disposed on the outer ring 501, a seal ring 401 seal ring 3, a seal ring 501 is disposed on the outer ring 501, a seal ring 3, a seal ring 401 is disposed on the outer ring, a seal ring 501 is disposed on the outer ring 3, a seal ring 401.

Referring to fig. 5 ~ 6, the small seal cover 7 is provided with an outer ring body 703 and an inner ring body 702, an inner ring groove 704 is provided between the small seal cover mounting ring body 701 and the inner ring body 702, a sealing circular tube 503 extends into the inner ring groove 704 and has a clearance with the inner ring groove 704, an outer ring groove 705 is provided between the inner ring body 702 and the outer ring body 703, the sealing ring 6 extends into the outer ring groove 705 and has a clearance with the outer ring groove 705, the sealing circular tube 503, the sealing ring 6 and the small seal cover 7 form a labyrinth seal, the end face of the small seal cover 7 is provided with a mounting boss 706, and the snap spring 8 is mounted on.

An inner ring of a bearing 10 is in interference fit with a roller shaft 9, an outer ring of the bearing 10 is in interference fit with a first step inner hole 204 of a bearing seat 2, one side end face of the bearing 10 is tightly attached to a first step face 203, an outer ring of the bearing 10 at the other side end face is tightly attached to an end face of one end of an inner sealing ring 3, an inner sealing ring mounting ring body 305 is in interference fit with the first step inner hole 204, the inner sealing ring mounting ring body 305 is thickened, a circumferential platform 301 is arranged on the outer side of the other end of the inner sealing ring 3, the circumferential platform 301 is tightly attached to a second step face 205, a gap is reserved between the circumferential surface of the circumferential platform 301 and a second step inner hole 206, a large sealing cover 5 is in interference fit with the second step inner hole 206, a sealing cover step 501 is arranged on the circumferential outer surface of the large sealing cover 5 matched with the second step inner hole, the outer edge of the end cover of the large sealing cover 5 is provided with a tapered step 502, the inner hole 206 of the second step is provided with a positioning groove 208, the positioning groove 208 is matched with the tapered step 502, the large sealing cover 5 presses the bearing 10 through a pressing circumferential platform 301 to inhibit the play of the bearing 10, the inner ring of the bearing 10 is tightly attached to one end of an outer sealing ring 4, the outer sealing ring 4 is in interference fit with the roller shaft 9 and is positioned in the bearing seat 2, one end of the outer sealing ring 4 presses the inner ring of the bearing 10, the inner sealing ring 3 and the outer sealing ring 4 form labyrinth seal, the other end of the outer sealing ring 4 is tightly attached to one end of a small sealing cover 7, the mounting ring body 701 of the small sealing cover is in interference fit with the roller shaft, the mounting ring body 701 of the small sealing cover is thickened, the other end of the small sealing cover 7 is provided with a mounting boss, the play of the bearing 10 is suppressed. The large sealing cover 5 is provided with a sealing circular tube 503, the sealing circular tube 503 is provided with a sealing ring 6, and the sealing ring 6, the sealing circular tube 503 and the small sealing cover 7 form labyrinth sealing, so that the sealing effect is good. The outer circumference of the bearing seat 2 is provided with a bearing seat step 201, the roller body 1 is provided with a roller body clamping groove 101 and a bearing seat positioning hole 102, the roller body clamping groove 101 is matched with the bearing seat step 201, the end face of the bearing seat 2 is tightly attached to the bearing seat positioning hole 102, the installation is convenient, and the shifting of the bearing seat 2 is restrained.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (10)

1. The utility model provides a sealing device of anti-channeling type polymer bearing roller which characterized in that: including bearing frame (2), sealing assembly and fastener, the outer periphery of bearing frame (2) is provided with bearing frame step (201), and roll body draw-in groove (101) have been seted up to roll body (1) internal surface, and bearing frame (2) and roll body (1) are through bearing frame step (201) and roll body draw-in groove (101) cooperation joint, sealing assembly includes inner seal circle (3), outer seal circle (4), big sealed lid (5) and little sealed lid (7), and bearing (10), inner seal circle (3) and big sealed lid (5) are installed from inside to outside along the axis of roller axle (9) in proper order on bearing frame (2), and the terminal surface of inner seal circle (3) one end compresses tightly bearing (10) outer lane, and the inner seal circle (3) other end outside is equipped with circumference platform (301), and big sealed lid (5) interference fit installs at bearing frame (2) tip inboard, and big sealed lid (5), the outer sealing ring (4) is arranged on the roll shaft (9) and positioned in the bearing seat (2), the end face of one end of the outer sealing ring (4) tightly presses the inner ring of the bearing (10), the other end of the outer sealing ring is fixed with one end of the small sealing cover (7), and the other end of the small sealing cover (7) is fixed with the roll shaft (9) through a fastener.

2. The sealing device for the anti-channeling polymer carrier roller according to claim 1, wherein: bearing frame step (201) are right trapezoid along roller (9) axis cross-section, and bearing frame step (201) hypotenuse is located one side that roller (9) are close to the middle part, and bearing frame locating hole (102) have still been seted up to roll body (1) internal surface, and the terminal surface of bearing frame (2) one end is pasted tightly with bearing frame locating hole (102), and the tip inboard at roll body (1) is installed in bearing frame (2) interference fit.

3. The sealing device for the anti-channeling polymer carrier roller according to claim 1, wherein: the bearing seat is characterized in that a roller shaft hole (202), a first stepped inner hole (204) and a second stepped inner hole (206) are sequentially arranged on the bearing seat (2) from inside to outside along the axis of the roller shaft (9), the aperture of the second stepped inner hole (206) is larger than that of the first stepped inner hole (204), the aperture of the first stepped inner hole (204) is larger than that of the roller shaft hole (202), and the aperture of the roller shaft hole (202) is larger than the diameter of the roller shaft (9) and smaller than the diameter of an outer ring of the bearing (10).

4. A sealing device for a run-preventing polymer carrier roller according to claim 3, wherein: the bearing (10) is installed in the first step inner hole (204) in an interference mode, one side end face of the bearing (10) is attached to a first step face (203), and the first step face (203) is located between the roller shaft hole (202) and the first step inner hole (204).

5. The sealing device for the anti-channeling polymer carrier roller according to claim 4, wherein: interior sealing washer (3) interference fit is in first step hole (204), and interior sealing washer (3) are located one side that first step face (203) were kept away from in bearing (10), and second step face (205) are laminated in circumference platform (301) of interior sealing washer (3), and second step face (205) are located between first step hole (204) and second step hole (206), and the periphery of circumference platform (301) is gapped between second step hole (206).

6. The sealing device for the anti-channeling polymer carrier roller according to claim 5, wherein: a large sealing cover (5) is arranged in the second step inner hole (206) in an interference fit manner, the circumferential end surface of the large sealing cover (5) tightly presses a circumferential platform (301) of the inner sealing ring (3), a sealing cover step (501) is arranged on the circumferential outer surface of the large sealing cover (5), the section of the sealing cover step (501) along the axis of the roll shaft (9) is in a right trapezoid shape, and the hypotenuse of sealed lid step (501) is located one side that roller (9) are close to the middle part, second ladder hole draw-in groove (207) have been seted up in second ladder hole (206), big sealed lid (5) and bearing frame (2) are through second ladder hole draw-in groove (207) and sealed lid step (501) cooperation joint, the end cover off-plate edge of big sealed lid (5) is equipped with tapered step (502), second ladder hole (206) are equipped with positioning groove (208), tapered step (502) are installed in positioning groove (208).

7. The sealing device for the anti-channeling polymer carrier roller according to claim 6, wherein: one side of the end cover surface of the large sealing cover (5) far away from the outer surface of the circumference is provided with a sealing circular pipe (503), the sealing circular pipe (503) is coaxial with the roller shaft (9), the pipe diameter of the sealing circular pipe (503) is larger than the diameter of the outer sealing ring (4), the sealing assembly further comprises a sealing ring (6), the sealing ring (6) is arranged on the sealing circular pipe (503), the small sealing cover (7) is provided with an outer ring body (703) and an inner ring body (702), an inner ring groove (704) is arranged between the small sealing cover (7) installation ring body (701) and the inner ring body (702), the sealing circular pipe (503) extends into the inner ring groove (704) and has a clearance with the inner ring groove (704), an outer ring groove (705) is arranged between the inner ring body (702) and the outer ring body (703), the sealing ring (6) extends into the outer ring groove (705, the sealing ring (6) and the small sealing cover (7) form a labyrinth seal.

8. The sealing device for the anti-channeling polymer carrier roller according to claim 7, wherein: little sealed lid installation ring body (701) and roller (9) interference fit, little sealed lid (7) terminal surface are equipped with installation boss (706), are provided with inner seal circle installation ring body (305) on inner seal circle (3), and inner seal circle installation ring body (305) interference fit installs in first step hole (204), and the fastener is jump ring (8), and jump ring (8) are installed on roller (9) and are compressed tightly installation boss (706).

9. The sealing device for the anti-channeling polymer carrier roller according to claim 1, wherein: the outer sealing ring (4) is in interference fit with the roller shaft (9), an inner ring body (302) and an inner ring outer ring body (303) are arranged on the inner sealing ring (3), an inner sealing ring groove (304) is formed between the inner ring body (302) and the inner ring outer ring body (303), an outer ring inner ring body (401) and an outer ring body (402) are arranged on the outer sealing ring (4), an outer sealing ring groove (403) is formed between the outer ring inner ring body (401) and the outer ring body (402), the inner ring body (302) extends into the outer sealing ring groove (403) and is arranged at intervals with the inner wall of the outer sealing ring groove (403), the outer ring inner ring body (401) extends into the inner sealing ring groove (304) and is arranged at intervals with the inner wall of the inner sealing ring groove (304), and the inner sealing ring (3.

10. The sealing device for the anti-channeling polymer carrier roller according to claim 1, wherein: the sealing component is made of ABS materials.