CN105387132B - Side roller and chain with side roller - Google Patents
Side roller and chain with side roller Download PDFInfo
- Publication number
- CN105387132B CN105387132B CN201510530638.0A CN201510530638A CN105387132B CN 105387132 B CN105387132 B CN 105387132B CN 201510530638 A CN201510530638 A CN 201510530638A CN 105387132 B CN105387132 B CN 105387132B
- Authority
- CN
- China
- Prior art keywords
- seal
- roller
- chain
- shaft member
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000314 lubricant Substances 0.000 claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 239000004519 grease Substances 0.000 claims description 9
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 description 11
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 210000003027 ear inner Anatomy 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000021189 garnishes Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/30—Details; Auxiliary devices
- B65G17/38—Chains or like traction elements; Connections between traction elements and load-carriers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7886—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted outside the gap between the inner and outer races, e.g. sealing rings mounted to an end face or outer surface of a race
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7896—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members with two or more discrete sealings arranged in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
- F16G13/06—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/71—Chains
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
Abstract
A side roller is provided with a roller member. The roller member is rotatably supported via a ball bearing by a shaft member protruding from a side portion of the chain, and rolls with the movement of the chain. A seal chamber is formed between the roller member and the shaft member at a position closer to the chain than the ball bearings. In the seal chamber, 2 oil seals are disposed adjacently in the axial direction of the shaft member, and the 2 oil seals seal between the roller member and the shaft member by an elastic force. The sealed chamber is filled with a lubricant.
Description
Technical Field
The present invention relates to a side roller (side roller) which is attached to a side portion of an article such as a chain and moves the article by rotating, and a chain having the side roller which is provided at a side portion of the chain.
Background
Conventionally, such a chain having side rollers has a structure in which the side rollers are rotatably mounted on roller shafts covered with bushings via bearings (see, for example, japanese patent application laid-open No. 2014-12596). The roller shaft is formed integrally with a connecting pin of the chain and protrudes outward of the outer link. The side roller has a cylindrical shape with a closed tip side. In such a chain having the side rollers, the base end surfaces of the side rollers slide against the outer side surfaces of the outer links. In order to prevent foreign matter such as dust, dirt, and rainwater from entering the bearing in the side roller through the gap between the side roller and the outer link, a seal structure is provided between the inner circumferential surface of the side roller and the outer circumferential surface of the bushing.
The sealing structure is provided with: 2 non-contact labyrinth seals (labyrinths seals) disposed so as to be spaced apart in the axial direction of the roller shaft; and a grease seal portion provided between the 2 labyrinth seals. The grease seal portion is composed of a grease seal layer and a felt seal layer which are alternately arranged in the axial direction. The labyrinth seal complicatedly bends an entry path of foreign matter to increase a distance of the entry path, thereby making it difficult for the foreign matter to enter.
Disclosure of Invention
Problems to be solved by the invention
However, in the above-described seal structure, the labyrinth seal cannot be used to block foreign matter. Further, since the felt seal layer of the grease seal portion slides on the outer peripheral surface of the bushing when the chain having the side roller is used, a gap is easily formed between the felt seal layer and the bushing. Therefore, there is still room for improvement in the bearing that prevents foreign matter from entering the side roller.
The present invention has been made in view of the problems occurring in the prior art as described above. The purpose of the present invention is to provide a side roller capable of effectively preventing foreign matter from entering a rolling bearing, and a chain having the side roller.
Means for solving the problems
Means and effects for solving the above problems will be described below.
The side roller includes a roller member rotatably supported via a rolling bearing on a shaft member provided to protrude from a side portion of a movable body and rolling with movement of the movable body, wherein a seal chamber is formed between the roller member and the shaft member at a position closer to the movable body than the rolling bearing, a plurality of 1 st seal members are arranged in the seal chamber adjacent to each other in an axial direction of the shaft member, the 1 st seal members seal between the roller member and the shaft member by an elastic force, and the seal chamber is filled with 1 st lubricant.
According to this configuration, the plurality of 1 st seal members are disposed in the seal chamber formed between the roller member and the shaft member at a position closer to the movable body than the rolling bearing. Therefore, the gap between the roller member and the shaft member is sealed by the elastic force of the plurality of first seal members 1, and it is possible to effectively prevent foreign matter from entering the rolling bearing from the moving body side.
Drawings
Fig. 1 is a plan view showing a chain having side rollers according to an embodiment, with a part partially cut.
Fig. 2 is a cross-sectional view showing a key portion of fig. 1 in an enlarged manner.
Fig. 3 is an enlarged cross-sectional view of a main portion of a chain having side rollers according to a modification.
Detailed Description
Hereinafter, an embodiment of a chain having side rollers will be described with reference to the drawings.
As shown in fig. 1, a chain 11 having side rollers includes a chain 12 as a moving body and side rollers 14. The side roller 14 is rotatably provided on a shaft member 13 protruding from a side portion of the chain 12, and moves while rotating on a not-shown rail in accordance with the movement of the chain 12.
The chain 12 is provided with a plurality of inner links 16 and a plurality of outer links 18. Each inner link 16 has a pair of inner link plates 15, and the pair of inner link plates 15 are arranged so as to face each other in the width direction Y and be spaced apart from each other. Each outer link 18 has a pair of outer link plates 17, and the pair of outer link plates 17 are arranged so as to sandwich the pair of inner link plates 15 from the outer side in the width direction Y. The inner link plates 15 and the outer link plates 17 are formed in a substantially rectangular plate shape extending in the longitudinal direction X orthogonal to the width direction Y. The longitudinal direction X coincides with a moving direction when one end of the chain 12 is pulled and the chain 12 is moved.
The inner link plates 15 and the outer link plates 17 facing each other in the width direction Y are arranged in parallel to each other. In other words, in the chain 12, the inner links 16 are configured such that the intervals between the pair of inner link plates 15 are equal at one end and the other end of the inner links 16 in the longitudinal direction X. The outer link 18 is configured such that the distance between the pair of outer link plates 17 is equal at one end and the other end of the outer link 18 in the longitudinal direction X. That is, the chain 12 is a flat plate type chain.
At both ends of the inner link plate 15 in the longitudinal direction X, circular bushing insertion holes 15a are formed, respectively, and the bushing insertion holes 15a penetrate the inner link plate 15 in the width direction Y. The width direction Y of the chain 12 corresponds to the thickness direction of the inner link plates 15. On the inner link 16, 2 cylindrical bushings 19 are mounted between a pair of opposed inner link plates 15 so as to maintain the distance between the pair of inner link plates 15. Both end portions of the bushing 19 are fitted into the bushing insertion holes 15a of the pair of inner link plates 15, respectively. The bush 19 is inserted into a cylindrical roller 20, thereby rotatably supporting the roller 20. That is, the bush 19 is movably fitted in the roller 20.
At both ends of the outer link plate 17 in the longitudinal direction X, circular pin insertion holes 17a are formed, respectively, and the pin insertion holes 17a penetrate the outer link plate 17 in the width direction Y. A cylindrical pin 21 is inserted into the pin insertion hole 17a, and the pin 21 has an outer diameter slightly smaller than the inner diameter of the bush 19. The width direction Y of the chain 12 corresponds to the thickness direction of the outer link plates 17. The pair of outer link plates 17 of the outer link 18 are rotatably connected to the pair of inner link plates 15 of the inner link 16 from the outer side of the inner link 16 via a pin 21.
In this case, the intermediate portion of the pin 21 is inserted into the bushing 19 that is installed between the pair of inner link plates 15 of the inner link 16. Both end portions of the pin 21 are fitted into the pin insertion holes 17a of the pair of outer link plates 17 of the outer link 18. Therefore, both end portions of the pin 21 penetrate the pair of outer link plates 17, and the end portions of the pair of inner link plates 15 and the end portions of the pair of outer link plates 17 adjacent to each other in the longitudinal direction X are rotatably connected via the pin 21 and the bushing 19. The chain 12 of the present embodiment is made of a steel material.
As shown in fig. 1 and 2, the pin 21 has pin protruding portions 21a on both sides in the width direction Y. The pin protruding portion 21a is provided so as to protrude outward in the width direction Y from the outer side surface 17b of each outer link plate 17 constituting the side portion of the chain 12. The width direction Y of the chain 12 corresponds to the axial direction of the pins 21. A cylindrical shaft member 13 made of a steel material is fixed to the pin protruding portion 21a, and the shaft member 13 is fixed in a state of being externally fitted to the pin protruding portion 21a so as to cover substantially the entire pin protruding portion 21 a. The shaft member 13 is formed in a stepped shape, and the diameter of the base end (the end on the chain 12 side) thereof is larger than that of the tip end.
The side roller 14 is rotatably supported on the shaft member 13 via a ball bearing 31 as a rolling bearing. The side roller 14 has a cylindrical roller member 32, and the roller member 32 rolls along with the movement of the chain 12 in the longitudinal direction X. In the present embodiment, two ball bearings 31 are provided so as to be adjacent to each other in the width direction Y. The width direction Y of the chain 12 corresponds to the axial direction of the ball bearing 31.
The ball bearing 31 includes: an annular inner ring 33 (inner garnish) and an outer ring 34 (outer garnish); and a plurality of balls 35 disposed between the inner wheel 33 and the outer wheel 34. The inner ring 33 is fixed to the outer peripheral surface 13a of the shaft member 13, and the outer ring 34 is fixed to the inner peripheral surface 32a of the roller member 32. The plurality of balls 35 are held by a not-shown retainer in a state of being arranged in a row at predetermined intervals in the circumferential direction.
In one (left side in fig. 2) of the 2 ball bearings 31, the inner race 33 abuts against the step portion 13b of the shaft member 13, and the outer race 34 abuts against a corner portion of the inner peripheral surface 32a of the roller member 32 in the ball bearing 31. In the other (right side in fig. 2) of the two ball bearings 31, the outer ring 34 is restricted by the annular 1 st restricting plate 36 to prevent the outer ring from falling off, and the 1 st restricting plate 36 is locked to the inner peripheral surface 32a of the roller member 32. The 1 st restriction plate 36 is constituted by a C-shaped snap ring.
The inner ring 33 of the ball bearing 31 (on the right side in fig. 2) whose outer ring 34 is regulated by the 1 st regulating plate 36 to prevent the outer ring from falling off is regulated by the 2 nd regulating plate 37 to prevent the outer ring from falling off. The 2 nd limiting plate 37 is formed of an annular gasket having a substantially D-shaped hole 37 a. The hole 37a is inserted with the tip end of the pin projection 21a, and the cross section of the tip end is substantially D-shaped. A bolt 38 is fastened to an end surface of the pin projection 21a, and an annular bottom plate 39 formed of a flat washer is provided between the bolt 38 and the end surface of the pin projection 21 a. The 2 nd regulating plate 37 is prevented from coming off by the bolt 38 abutting against the bottom plate 39. As the lubricant inside the ball bearing 31, a lubricant in which a synthetic resin, grease, or the like is mixed is used.
A disk-shaped cover 40 is fitted to the inner peripheral side end of the roller member 32, and the cover 40 is fitted to the end with its outer peripheral surface sealed by an O-ring 41. The cap 40 is restricted from falling off the roller member 32 by the annular 3 rd restricting plate 42, and the 3 rd restricting plate 42 is locked to the inner peripheral surface 32a of the roller member 32. The 3 rd restriction plate 42 is constituted by a snap ring.
An annular seal chamber 43 is formed between the roller member 32 and the shaft member 13 at a position adjacent to the ball bearing 31 on the chain 12 side, that is, at a position closer to the chain 12 than the ball bearing 31. The seal chamber 43 is defined by the roller member 32, the shaft member 13, and the ball bearing 31. A plurality of annular oil seals 44 as the 1 st seal member are disposed adjacently in the width direction Y, i.e., in the axial direction of the shaft member 13, in the seal chamber 43. In the present embodiment, 2 oil seals 44 are arranged.
A minute gap of about 1mm, for example, is formed between 2 oil seals 44 in the width direction Y. Each oil seal 44 presses the roller member 32 and the shaft member 13 in the radial direction thereof by elastic force. That is, the respective oil seals 44 seal between the roller member 32 and the shaft member 13 by the elastic force. The sealed chamber 43 is filled with a lubricant such as grease. The lubricant lubricates each oil seal 44.
An annular O-ring 45 as a 2 nd seal member is disposed between the roller member 32 and the shaft member 13 at a position closer to the chain 12 than the seal chamber 43, and the O-ring 45 seals between the roller member 32 and the shaft member 13 by an elastic force. The O-ring 45 is disposed in a 1 st recessed portion 46, and the 1 st recessed portion is formed on the inner peripheral surface 32a of the roller member 32.
Further, the roller member 32 has a surface facing the outer surface 17b of the outer link plate 17 constituting the side portion of the chain 12 as a facing surface 32 b. An annular V-ring 47 as a 3 rd seal member is disposed on a radially outer portion of the shaft member 13 between the outer side surface 17b of the outer link plate 17 and the opposed surface 32b of the roller member 32, and the V-ring 47 seals between the outer side surface 17b and the opposed surface 32b by an elastic force. The V-shaped ring 47 is disposed in the 2 nd recessed portion 48, and the 2 nd recessed portion 48 is formed on the opposed surface 32b of the roller member 32.
Next, an operation when the chain 11 having the side roller is used in an environment where foreign matter such as dust (for example, coal or cement) is large will be described.
The chain 11 having the side rollers is used so that the side rollers 14 move while rolling on a not-shown rail in accordance with the movement of the chain 12. At this time, foreign matter such as dust enters the outermost portion in the radial direction of the shaft member 13 in the gap between the outer side surface 17b of the outer link plate 17 and the facing surface 32b of the roller member 32 as an inlet. Foreign matter entering from the inlet is blocked by the V-ring 47 located near the inlet. However, since the V-shaped ring 47 slides with respect to the outer side surface 17b, foreign matter is pushed little by little through the V-shaped ring 47 into the side roller 14 from between the V-shaped ring 47 and the outer side surface 17b of the outer link plate 17.
Foreign matter that has pushed through the V-ring 47 into the side roller 14 is blocked by the O-ring 45. However, since the O-ring 45 slides with respect to the shaft member 13, foreign matter is pushed little by little through the O-ring 45 from between the O-ring 45 and the outer peripheral surface 13a of the shaft member 13 and advances toward the inside of the side roller 14. Foreign matter pushed through the O-ring 45 and advanced toward the inside of the side roller 14 enters the seal chamber 43.
The foreign matter entering into the seal chamber 43 is blocked by the 2 oil seals 44. In this case, since 2 oil seals 44 are adjacently arranged in the width direction Y in the seal chamber 43 filled with the lubricant, the foreign matter entering into the seal chamber 43 is blocked in 2 stages. That is, even if the foreign matter entering the seal chamber 43 pushes through one of the 2 oil seals 44 (the left side in fig. 2), the foreign matter is blocked by the other oil seal 44 (the right side in fig. 2).
In this case, in 2 oil seals 44, foreign matter enters into the seal chamber 43, so that the sealing function of the oil seal 44 located at a position distant from the ball bearing 31 (left side in fig. 2) among the 2 oil seals 44 against foreign matter starts to be lowered earlier than the sealing function of the oil seal 44 located at a position close to the ball bearing 31. However, even in a state where the sealing function of the oil seal 44 (left side in fig. 2) located at a position distant from the ball bearing 31 is lowered, the amount of foreign matter toward the oil seal 44 (right side in fig. 2) located at a position close to the ball bearing 31 can be suppressed. That is, each oil seal 44 can suppress the foreign matter from advancing to the downstream side of the foreign matter entry path even in a state where its sealing function is lowered by the foreign matter. Therefore, foreign matter entering the seal chamber 43 can be effectively suppressed from entering the ball bearing 31.
In this way, V-rings 47, O-rings 45, and 2 oil seals 44, which are contact seal members utilizing elastic force, are arranged in this order on the entry path of the foreign matter from the outside of the side roller 14 to the ball bearing 31 inside the side roller 14. In addition, these contact seal members utilizing elastic force have particularly high sealing performance as compared with conventional non-contact labyrinth seals and felt seals. Therefore, foreign matter can be effectively suppressed from entering the ball bearing 31.
According to the above-described embodiment, the following effects can be exhibited.
(1) The 1 st lubricant is filled in the seal chamber 43, and 2 oil seals 44 (1 st seal member) are disposed, and the oil seals 44 seal between the roller member 32 and the shaft member 13 by elastic force. These 2 oil seals 44 are adjacently arranged in the width direction Y. Therefore, foreign matter entering into the seal chamber 43 is blocked by 2 oil seals 44 in 2 stages. Therefore, foreign matter from the outside can be effectively prevented from entering the ball bearing 31 from the chain 12 side.
(2) Gaps are formed between the 2 oil seals 44 in the seal chamber 43. Therefore, the 1 st lubricant filled in the seal chamber 43 is also filled in the gap between the 2 oil seals 44, so that the 2 oil seals 44 can be lubricated efficiently. Therefore, since the sliding resistance of each oil seal 44 with respect to the outer peripheral surface 13a of the shaft member 13 can be reduced, it is possible to contribute to an extension of the wear life of 2 oil seals 44. Further, by forming a gap between the 2 oil seals 44, it is possible to suppress the 2 oil seals 44 from interfering with each other.
(3) An O-ring 45 as a 2 nd seal member is disposed between the roller member 32 and the shaft member 13 at a position closer to the chain 12 than the seal chamber 43. Therefore, the sealing performance against foreign matter that is intended to enter the ball bearing 31 can be improved.
(4) A V-ring 47 as a 3 rd seal member is disposed on a radially outer portion of the shaft member 13 between the outer side surface 17b of the outer link plate 17 and the facing surface 32b of the roller member 32. That is, since the V-shaped ring 47 is disposed near the entrance of the foreign matter that is to enter the side roller 14, the entry of the foreign matter can be effectively suppressed at an early stage.
(5) As the 2 nd lubricant used for the ball bearing 31, a lubricant in which a synthetic resin and a grease are mixed may be used. Therefore, the wear resistance of the ball bearing 31 can be improved.
(modification example)
The above embodiment may be modified as follows.
As shown in fig. 3, 3 oil seals 50 may be disposed in the seal chamber 43. In this case, each oil seal 50 is disposed so as to form a slight gap with the other adjacent oil seal 50. Further, in this case, at least 1 of the 3 oil seals 50 may also be provided as an O-ring.
In the seal chamber 43, 4 or more seal members may be arranged. In this case, at least 1 of the 4 or more sealing members may be constituted by an O-ring, or at least 1 of these sealing members may be constituted by an oil seal. The O-ring may constitute a part of the 4 or more seal members, or the oil seal may constitute the remaining seal member.
At least one of the 2 oil seals 44 disposed in the seal chamber 43 may be modified to an O-ring.
The V-shaped ring 47 may also be omitted.
The O-ring 45 may be omitted.
It is not necessary to form a gap between the 2 oil seals 44 in the seal chamber 43. That is, it is also possible to bring 2 oil seals 44 into contact with each other.
The lubricant for the ball bearing 31 is not necessarily a mixture of a synthetic resin and a grease.
Any one of the 2 ball bearings 31 may be omitted.
Instead of the ball bearing 31, a ball bearing may be used as the rolling bearing.
The moving body may be a tray, a casing, or the like for conveyance.
The chain 12 may be an offset chain configured such that the width of the pair of link plates is different at both ends in the longitudinal direction.
The chain 12 may be made of a synthetic resin.
Claims (3)
1. A side roller including a roller member rotatably supported via a rolling bearing on a shaft member provided to protrude to a side portion of a movable body and rolling with movement of the movable body, the side roller being characterized in that,
a seal chamber is formed between the roller member and the shaft member at a position closer to the movable body than the rolling bearing,
a plurality of 1 st seal members are disposed in the seal chamber so as to be adjacent to each other in an axial direction of the shaft member, the 1 st seal members sealing between the roller member and the shaft member by an elastic force,
the first lubricant is filled in the sealing chamber 1,
a gap is formed between the 1 st seal members adjacent to each other in the axial direction,
the gap is filled with a 1 st lubricant,
further comprising a 2 nd seal member disposed between the roller member and the shaft member at a position closer to the movable body than the seal chamber, the 2 nd seal member sealing between the roller member and the shaft member by an elastic force, the 2 nd seal member being an O-ring,
the present invention further provides a 3 rd seal member, the 3 rd seal member being disposed at an outer portion in a radial direction of the shaft member between the side portion of the moving body and the roller member, and sealing between the side portion of the moving body and the roller member by an elastic force, wherein the 3 rd seal member is a V-shaped ring.
2. The side roller as recited in claim 1,
the rolling bearing uses a 2 nd lubricant, and the 2 nd lubricant is a lubricant obtained by mixing a synthetic resin and a grease.
3. A chain with side rollers is characterized in that,
the moving body is a chain, and the chain is arranged on the moving body,
the side roller of claim 1 or 2 is provided on the chain.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-173974 | 2014-08-28 | ||
| JP2014173974A JP6392031B2 (en) | 2014-08-28 | 2014-08-28 | Side roller and chain with side roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105387132A CN105387132A (en) | 2016-03-09 |
| CN105387132B true CN105387132B (en) | 2019-12-31 |
Family
ID=55312368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510530638.0A Active CN105387132B (en) | 2014-08-28 | 2015-08-26 | Side roller and chain with side roller |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6392031B2 (en) |
| CN (1) | CN105387132B (en) |
| AU (1) | AU2015215959B2 (en) |
| DE (1) | DE102015114189A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6770011B2 (en) | 2018-02-09 | 2020-10-14 | ファナック株式会社 | Staggered conveyor chain |
| CN111121685B (en) * | 2019-12-26 | 2021-08-24 | 温州盈和创新科技有限公司 | Hole site detection device for oil storage cylinder support assembly |
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| JPH05305596A (en) * | 1992-05-01 | 1993-11-19 | Shin Meiwa Ind Co Ltd | Robot device for vacuum chamber |
| JPH1037678A (en) * | 1996-07-26 | 1998-02-10 | Nok Corp | Sealing device |
| JP4208169B2 (en) * | 2000-03-15 | 2009-01-14 | ナブテスコ株式会社 | Reducer and robot joint device |
| JP4282887B2 (en) * | 2000-09-22 | 2009-06-24 | Ｎｔｎ株式会社 | Roller bearing cage |
| DE202004013712U1 (en) * | 2004-09-02 | 2004-12-09 | Lok- Und Wagen-Bedarf Schoenawa Gmbh | Conveyor roller with knockout spindle is sealed against ingress of coal or cement dust by special double housing and lamella disc sealing forming double cavity for filling with grease |
| DE102006057461B4 (en) * | 2006-12-06 | 2009-02-26 | Ab Skf | Chain, in particular a chain conveyor |
| JP4823191B2 (en) * | 2007-09-27 | 2011-11-24 | 日立機材株式会社 | Chen |
| JP2009167803A (en) * | 2008-01-10 | 2009-07-30 | Jtekt Corp | Supercharger |
| JP4361117B2 (en) * | 2008-01-25 | 2009-11-11 | 株式会社椿本チエイン | Conveyor chain with side rollers |
| JP5197142B2 (en) * | 2008-05-12 | 2013-05-15 | 住友重機械工業株式会社 | Seal structure |
| CN201201045Y (en) * | 2008-05-14 | 2009-03-04 | 刘近军 | Revolving joint for long service life continuous casting machine |
| DE102011011165A1 (en) * | 2011-02-04 | 2012-08-09 | Imo Holding Gmbh | Sealing device i.e. oil seal, for sealing gap between inner ring and nose ring of three-row roller bearing utilized in wind power plant, has stabilization or fastening components whose location within material recess is adjustable |
| CN102644755B (en) * | 2012-04-25 | 2015-10-21 | 蓝星沈阳轻工机械设计研究所 | A kind of sealing configuration of powder feeder running shaft |
| JP5468111B2 (en) * | 2012-07-05 | 2014-04-09 | 株式会社椿本チエイン | Conveyor chain with traveling roller |
| CN203189735U (en) * | 2012-12-26 | 2013-09-11 | 杭州自强链传动有限公司 | Chain used for high-temperature and dust environment and metal sealing ring |
| CN103438308A (en) * | 2013-07-09 | 2013-12-11 | 中国人民解放军空军油料研究所 | Bidirectional fully-sealed rotary joint for fluid conveying |
-
2014
- 2014-08-28 JP JP2014173974A patent/JP6392031B2/en active Active
-
2015
- 2015-08-21 AU AU2015215959A patent/AU2015215959B2/en active Active
- 2015-08-26 CN CN201510530638.0A patent/CN105387132B/en active Active
- 2015-08-26 DE DE102015114189.2A patent/DE102015114189A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AU2015215959A1 (en) | 2016-03-17 |
| DE102015114189A1 (en) | 2016-03-03 |
| JP6392031B2 (en) | 2018-09-19 |
| CN105387132A (en) | 2016-03-09 |
| AU2015215959B2 (en) | 2018-07-19 |
| JP2016048105A (en) | 2016-04-07 |
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