CN203648587U - Roller bearing type eccentric bushing mechanism - Google Patents
Roller bearing type eccentric bushing mechanism Download PDFInfo
- Publication number
- CN203648587U CN203648587U CN201320816080.9U CN201320816080U CN203648587U CN 203648587 U CN203648587 U CN 203648587U CN 201320816080 U CN201320816080 U CN 201320816080U CN 203648587 U CN203648587 U CN 203648587U
- Authority
- CN
- China
- Prior art keywords
- roller bearing
- eccentric bushing
- eccentric
- inner ring
- copper
- 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.)
- Expired - Lifetime
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 23
- 229910052802 copper Inorganic materials 0.000 claims abstract description 29
- 239000010949 copper Substances 0.000 claims abstract description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 10
- 230000000712 assembly Effects 0.000 claims abstract description 7
- 238000000429 assembly Methods 0.000 claims abstract description 7
- 239000000428 dust Substances 0.000 claims description 19
- 229920006361 Polyflon Polymers 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a roller bearing type eccentric bushing mechanism. The roller bearing type eccentric bushing mechanism comprises a center sleeve, an eccentric bushing, a copper eccentric bushing and a movable tapered main shaft, wherein the eccentric bushing is arranged in the center sleeve, the lower end of the center sleeve is provided with a toothed wheel, the copper eccentric bushing is arranged in the eccentric bushing, the movable tapered main shaft is arranged in the copper eccentric bushing, a first spherical roller bearing is arranged between the movable tapered main shaft and the copper eccentric bushing, a spherical bearing pack is arranged at the lower end of the movable tapered main shaft, a tapered roller bearing is arranged between the center sleeve and the eccentric bushing, the tapered roller bearing comprises an outer ring and a plurality of inner ring assemblies, a plurality of tapered rollers are arranged in the inner ring assemblies, a self-lubricating material layer is coated on the tapered roller, and a dustproof cover board is arranged between the outer ring and the inner ring assembly. The roller bearing type eccentric bushing mechanism can bear radically and axially and can effectively balance upper floating force from the toothed wheel, so as to ensure the precision of the toothed wheel and the service life of the bearing.
Description
[technical field]
The utility model relates to the technical field of eccentric sleeve mechanism, particularly the technical field of roller bearing formula eccentric sleeve mechanism.
[background technology]
Eccentric sleeve mechanism is one of gyratory crusher key component, and its Main Function is to drive movable cone rotary oscillation, and movable cone is played a supportive role.At present, domestic eccentric sleeve mechanism generally all adopts the version of eccentric copper sheathing, and eccentric bushing and mantle main shaft and frame central inner room are the forms of motion sliding; Secondly be, to adopt roller type eccentric sleeve mechanism.
Prior art is the version that adopts copper eccentric bushing.Copper eccentric bushing and mantle main shaft and frame central inner room are slip forms.Therefore, the rotational speed between the cylindrical central sleeve in eccentric copper sheathing and frame and mantle main shaft is restricted, and rotating speed is difficult to improve, and has reduced gyratory crusher operating efficiency and production capacity; The coefficient of friction of sliding friction is much larger than the coefficient of friction of rolling friction, thereby wearing and tearing between cylindrical central sleeve and eccentric copper sheathing and mantle main shaft in copper eccentric bushing and frame are large, in the service life of having reduced machine, increased the use cost of machine.Secondly, existing roller type eccentric sleeve mechanism, eccentric bushing and cylindrical central sleeve adopt spheric roller bearing, because the ability to bear of spheric roller bearing axial force is low, the bevel gear of equipment gear and its pairing has the trend of floating in the time of High Rotation Speed, cause the gear pair field of conjugate action too small, cause the wearing and tearing of gear process; The gear wheel set of High Rotation Speed makes gear produce floating on the other hand, causes spheric roller bearing axially bearing larger load and come the trend of this floating of balance, the service life that certainly will reduce spheric roller bearing.
[utility model content]
The purpose of this utility model solves the problems of the prior art exactly, a kind of roller bearing formula eccentric sleeve mechanism is proposed, can radially carry and can axial carrying, can active balance from the buoyancy of gear, thereby guaranteed the precision of gear and the service life of bearing.
For achieving the above object, the utility model proposes a kind of roller bearing formula eccentric sleeve mechanism, comprise cylindrical central sleeve, eccentric bushing, copper eccentric bush and mantle main shaft, described eccentric bushing is installed in cylindrical central sleeve, the lower end of cylindrical central sleeve is provided with gear, copper eccentric bush is installed in eccentric bushing, described mantle main shaft is installed in copper eccentric bush, between described mantle main shaft and copper eccentric bush, the first spheric roller bearing is installed, the lower end of mantle main shaft is provided with spherical bearing group, between described cylindrical central sleeve and eccentric bushing, taper roll bearing is installed, described taper roll bearing comprises outer ring and some inner ring assemblies, some conical rollers are installed in described inner ring assembly, on described conical roller, be coated with self-lubricating material layer, between outer ring and inner ring assembly, dust cover is installed.
As preferably, the upper end between described cylindrical central sleeve and eccentric bushing is provided with taper roll bearing, and the lower end between cylindrical central sleeve and eccentric bushing is provided with the second spheric roller bearing.
As preferably, the quantity of described inner ring assembly is two, and two inner ring assembly symmetries are installed in outer ring, and the inner surface of described outer ring is provided with pyramidal projections structure, and inner ring assembly comprises shaped as frame retainer and inner ring, and described shaped as frame retainer is set on inner ring.
As preferably, described conical roller is rotatably installed on shaped as frame retainer, and the upper surface of conical roller contacts with the inner surface of outer ring, and the lower surface of conical roller contacts with the outer surface of inner ring, and described self-lubricating material layer is polyflon layer.
As preferably, described dust cover comprises installing plate and dust excluding plate, described installing plate is between outer ring and shaped as frame retainer, and dust excluding plate lid is located at the surface of shaped as frame retainer and inner ring, and described dust excluding plate adopts fixed head and the first nut to be fixedly installed in inner peripheral surface.
As preferably, the inner surface of described taper roll bearing and the second spheric roller bearing and eccentric bushing adopt interference fit, copper eccentric bush and eccentric bushing are adopted and are screwed, the first spheric roller bearing outer surface and copper eccentric bush adopt interference fit, and the lower surface of cylindrical central sleeve adopts the second nut to be installed with end ring.
As preferably, the both sides of described cylindrical central sleeve are equipped with mounting ear, and mounting ear has installing hole.
The beneficial effects of the utility model: the utility model is by adopting taper roll bearing to substitute the spheric roller bearing outside original eccentric bushing, thereby the installation accuracy that has ensured gear is within bearing clearance, avoid gear clearance too small and the danger of interlock may occur, by two inner ring assemblies of symmetrical installation in outer ring, make taper roll bearing can bear larger radial load, and there is higher limit speed, by apply self-lubricating material layer on conical roller, make bearing appoint so to hold in the situation that not adding lubricant and there is lower coefficient of friction, ensure the reliability of bearing in the time running up, because taper roll bearing can bear axial force, energy active balance is from the buoyancy of gear, thereby also extend service life of bearing, and avoid the too early wearing and tearing of gear.
Feature of the present utility model and advantage will be elaborated by reference to the accompanying drawings by embodiment.
[brief description of the drawings]
Fig. 1 is the main pseudosection of a kind of roller bearing formula of the utility model eccentric sleeve mechanism;
Fig. 2 is the main TV structure schematic diagram of taper roll bearing in the utility model;
Fig. 3 is the left TV structure schematic diagram of taper roll bearing in the utility model;
Fig. 4 is the main pseudosection of conical roller in the utility model.
In figure: 1-cylindrical central sleeve, 2-eccentric bushing, 3-copper eccentric bushing, 4-mantle main shaft, 6-end ring, 7-gear, 8-taper roll bearing, 9-spherical bearing group, 51-the first spheric roller bearing, 52-the second spheric roller bearing, 61-the second nut, 81-outer ring, 82-shaped as frame retainer, 83-inner ring, 84-conical roller, 85-dust cover, 811-pyramidal projections structure, 841-self-lubricating material layer, 851-installing plate, 852-dust excluding plate, 861-fixed head, 862-the first nut.
[detailed description of the invention]
Consult Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of roller bearing formula of the utility model eccentric sleeve mechanism, comprise cylindrical central sleeve 1, eccentric bushing 2, copper eccentric bush 3 and mantle main shaft 4, described eccentric bushing 2 is installed in cylindrical central sleeve 1, the lower end of cylindrical central sleeve 1 is provided with gear 7, copper eccentric bush 3 is installed in eccentric bushing 2, described mantle main shaft 4 is installed in copper eccentric bush 3, the first spheric roller bearing 51 is installed between described mantle main shaft 4 and copper eccentric bush 3, the lower end of mantle main shaft 4 is provided with spherical bearing group 9, between described cylindrical central sleeve 1 and eccentric bushing 2, taper roll bearing 8 is installed, described taper roll bearing 8 comprises outer ring 81 and some inner ring assemblies, some conical rollers 84 are installed in described inner ring assembly, on described conical roller 84, be coated with self-lubricating material layer 841, dust cover 85 is installed between outer ring 81 and inner ring assembly, upper end between described cylindrical central sleeve 1 and eccentric bushing 2 is provided with taper roll bearing 8, lower end between cylindrical central sleeve 1 and eccentric bushing 2 is provided with the second spheric roller bearing 52, the quantity of described inner ring assembly is two, two inner ring assembly symmetries are installed in outer ring 81, the inner surface of described outer ring 81 is provided with pyramidal projections structure 811, inner ring assembly comprises shaped as frame retainer 82 and inner ring 83, described shaped as frame retainer 82 is set on inner ring 83, described conical roller 84 is rotatably installed on shaped as frame retainer 82, the upper surface of conical roller 84 contacts with the inner surface of outer ring 81, the lower surface of conical roller 84 contacts with the outer surface of inner ring 83, described self-lubricating material layer 841 is polyflon layer, described dust cover 85 comprises installing plate 851 and dust excluding plate 852, described installing plate 851 is between outer ring 81 and shaped as frame retainer 82, dust excluding plate 852 lids are located at the surface of shaped as frame retainer 82 and inner ring 83, described dust excluding plate 852 adopts fixed head 861 and the first nut 862 to be fixedly installed in inner ring 83 surfaces, inner surface and the eccentric bushing 2 of described taper roll bearing 8 and the second spheric roller bearing 52 adopt interference fit, copper eccentric bush 3 is adopted and is screwed with eccentric bushing 2, the first spheric roller bearing 51 outer surfaces and copper eccentric bush 3 adopt interference fit, the lower surface of cylindrical central sleeve 1 adopts the second nut 61 to be installed with end ring 6, the both sides of described cylindrical central sleeve 1 are equipped with mounting ear 11, mounting ear has installing hole 12.
The utility model course of work:
A kind of roller bearing formula of the utility model eccentric sleeve mechanism in the course of the work, by the spheric roller bearing that adopts taper roll bearing 8 to substitute outside original eccentric bushing 2, thereby the installation accuracy that has ensured gear 7 is within bearing clearance, avoid gear 7 gaps too small and the danger of interlock may occur, by interior symmetrical two inner ring assemblies of installing in outer ring 81, taper roller axle 8 is held and can bear larger radial load, and there is higher limit speed, by apply self-lubricating material layer 841 on conical roller 84, make bearing appoint so to hold in the situation that not adding lubricant and there is lower coefficient of friction, ensure the reliability of bearing in the time running up, dust cover 85 can effectively stop dust, impurity enters in the inner ring assembly of bearing, extend the service life of equipment, because taper roll bearing 8 can bear axial force, energy active balance is from the buoyancy of gear 7, thereby also extend service life of bearing, and avoid the too early wearing and tearing of gear.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, any scheme after the utility model simple transformation is all belonged to protection domain of the present utility model.
Claims (7)
1. a roller bearing formula eccentric sleeve mechanism, it is characterized in that: comprise cylindrical central sleeve (1), eccentric bushing (2), copper eccentric bush (3) and mantle main shaft (4), described eccentric bushing (2) is installed in cylindrical central sleeve (1), the lower end of cylindrical central sleeve (1) is provided with gear (7), copper eccentric bush (3) is installed in eccentric bushing (2), described mantle main shaft (4) is installed in copper eccentric bush (3), between described mantle main shaft (4) and copper eccentric bush (3), the first spheric roller bearing (51) is installed, the lower end of mantle main shaft (4) is provided with spherical bearing group (9), between described cylindrical central sleeve (1) and eccentric bushing (2), taper roll bearing (8) is installed, described taper roll bearing (8) comprises outer ring (81) and some inner ring assemblies, some conical rollers (84) are installed in described inner ring assembly, on described conical roller (84), be coated with self-lubricating material layer (841), dust cover (85) is installed between outer ring (81) and inner ring assembly.
2. a kind of roller bearing formula eccentric sleeve mechanism as claimed in claim 1, it is characterized in that: the upper end between described cylindrical central sleeve (1) and eccentric bushing (2) is provided with taper roll bearing (8), the lower end between cylindrical central sleeve (1) and eccentric bushing (2) is provided with the second spheric roller bearing (52).
3. a kind of roller bearing formula eccentric sleeve mechanism as claimed in claim 1, it is characterized in that: the quantity of described inner ring assembly is two, two inner ring assembly symmetries are installed in outer ring (81), the inner surface of described outer ring (81) is provided with pyramidal projections structure (811), inner ring assembly comprises shaped as frame retainer (82) and inner ring (83), and described shaped as frame retainer (82) is set on inner ring (83).
4. a kind of roller bearing formula eccentric sleeve mechanism as claimed in claim 1, it is characterized in that: described conical roller (84) is rotatably installed on shaped as frame retainer (82), the upper surface of conical roller (84) contacts with the inner surface of outer ring (81), the lower surface of conical roller (84) contacts with the outer surface of inner ring (83), and described self-lubricating material layer (841) is polyflon layer.
5. a kind of roller bearing formula eccentric sleeve mechanism as claimed in claim 1, it is characterized in that: described dust cover (85) comprises installing plate (851) and dust excluding plate (852), described installing plate (851) is positioned between outer ring (81) and shaped as frame retainer (82), dust excluding plate (852) lid is located at the surface of shaped as frame retainer (82) and inner ring (83), and described dust excluding plate (852) adopts fixed head (861) and the first nut (862) to be fixedly installed in inner ring (83) surface.
6. a kind of roller bearing formula eccentric sleeve mechanism as claimed in claim 1, it is characterized in that: the inner surface of described taper roll bearing (8) and the second spheric roller bearing (52) and eccentric bushing (2) adopt interference fit, copper eccentric bush (3) is adopted and is screwed with eccentric bushing (2), the first spheric roller bearing (51) outer surface and copper eccentric bush (3) adopt interference fit, and the lower surface of cylindrical central sleeve (1) adopts the second nut (61) to be installed with end ring (6).
7. a kind of roller bearing formula eccentric sleeve mechanism as described in any one in claim 1 to 6, is characterized in that: the both sides of described cylindrical central sleeve (1) are equipped with mounting ear (11), and mounting ear has installing hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320816080.9U CN203648587U (en) | 2013-12-11 | 2013-12-11 | Roller bearing type eccentric bushing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320816080.9U CN203648587U (en) | 2013-12-11 | 2013-12-11 | Roller bearing type eccentric bushing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203648587U true CN203648587U (en) | 2014-06-18 |
Family
ID=50915030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320816080.9U Expired - Lifetime CN203648587U (en) | 2013-12-11 | 2013-12-11 | Roller bearing type eccentric bushing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203648587U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103657773B (en) * | 2013-12-11 | 2015-10-21 | 浙江浙矿重工股份有限公司 | A kind of roller bearing formula eccentric sleeve mechanism |
-
2013
- 2013-12-11 CN CN201320816080.9U patent/CN203648587U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103657773B (en) * | 2013-12-11 | 2015-10-21 | 浙江浙矿重工股份有限公司 | A kind of roller bearing formula eccentric sleeve mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313100 Industrial Park, Heping Town, Changxing County, Huzhou, Zhejiang Patentee after: Zhejiang mining heavy industry Co.,Ltd. Address before: 313100 Industrial Park, Heping Town, Changxing County, Huzhou, Zhejiang Patentee before: ZHEJIANG ZHEKUANG HEAVY INDUSTRY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
|
| CX01 | Expiry of patent term |