CN204082951U - The linkage structure of roller and eccentric shaft in building hoist - Google Patents
The linkage structure of roller and eccentric shaft in building hoist Download PDFInfo
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- CN204082951U CN204082951U CN201420499049.1U CN201420499049U CN204082951U CN 204082951 U CN204082951 U CN 204082951U CN 201420499049 U CN201420499049 U CN 201420499049U CN 204082951 U CN204082951 U CN 204082951U
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- roller
- eccentric shaft
- connecting cylinder
- wheel body
- eccentric
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Abstract
The utility model provides the linkage structure of roller and eccentric shaft in a kind of building hoist, belongs to field of mechanical technique.It solve the problem that in existing lift, service life of roller is short.The linkage structure of roller and eccentric shaft in this building hoist, the inner of eccentric shaft is used for being connected on a mounting board, the outer end of eccentric shaft has the eccentric segment of eccentric setting, wheel body cylindrically, this structure also comprises a connecting cylinder cylindrically, above-mentioned connecting cylinder is enclosed within eccentric segment, above-mentioned wheel body to be enclosed within connecting cylinder and to have bearing between wheel body and connecting cylinder, there is between described eccentric segment and connecting cylinder the link one that both axially can be connected, there is between described wheel body and bearing the link two that both axially can be connected.In this building hoist, the linkage structure of roller and eccentric shaft can improve the working life of roller.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to the linkage structure of roller and eccentric shaft in a kind of building hoist, particularly building hoist.
Background technique
Building hoist is a kind of vertical lifting machinery being widely used in construction, is mainly used in manned and cargo.Building hoist roller is one of most important component on building hoist, working level is high, load is large, its inside is provided with rolling bearing, because the usage requirement rolling bearing inner ring of roller will slide on roller shaft, but the usage requirement of general rolling bearing is the relative axle transfixion of bearing inner race, which results in roller inner bearing not high for working life.
The roller used in existing building hoist, require when roller uses that the inner ring of bearing wants to slide axially on roller eccentric shaft 5 ~ 6mm, which results in bearing inner race be Spielpassung with the tolerance fit of roller eccentric shaft and transition fit or slight interference can not be used to coordinate, finally result in bearing and reduce working life.
Its publication number of Chinese patent CN203638923U provides " a kind of roller type guiding device for lift ", it is made up of roller, action roller bearing, fixed idler whell bearing, Compress Spring, screw rod and nut, action roller bearing and fixed idler whell bearing parallel interval are arranged, be somebody's turn to do the two corresponding one end by screw rod and the adjustable connection of nut, Compress Spring is connected between action roller bearing and fixed idler whell bearing; Roller connects bearing pin respectively by roller and is installed in action roller bearing and fixed idler whell bearing, and fixed idler whell bearing is fixedly connected with frame; Action roller bearing connects bearing pin by it and is flexibly connected with lift frame; By regulating the pressure of Compress Spring between action roller bearing and fixed idler whell bearing, action roller bearing is made to connect the relative housing slide of bearing pin by it, the roller track that the roller of action roller bearing and fixed idler whell bearing is corresponding with it keeps fitting tightly motion, lift is run more steadily reliable, stuck or derailment accident can not occur.
But, how to improve the life-span of roller, technological scheme not clear and definite in above-mentioned patent.That is, above-mentioned patent still also exists shorter problem in roller working life.
Summary of the invention
The purpose of this utility model is the problems referred to above existed for prior art, provides a kind of linkage structure that can improve roller and eccentric shaft in the high building hoist with improving roller working life of roller and eccentric shaft connective stability.
The purpose of this utility model realizes by following technical proposal: the linkage structure of roller and eccentric shaft in a kind of building hoist, the inner of eccentric shaft is used for being connected on a mounting board, the outer end of eccentric shaft has the eccentric segment of eccentric setting, wheel body cylindrically, it is characterized in that, this structure also comprises a connecting cylinder cylindrically, above-mentioned connecting cylinder is enclosed within eccentric segment, above-mentioned wheel body to be enclosed within connecting cylinder and to have bearing between wheel body and connecting cylinder, there is between described eccentric segment and connecting cylinder the link one that both axially can be connected, there is between described wheel body and bearing the link two that both axially can be connected.
In the effect lower whorl physical efficiency of bearing relative to the smooth and easy rotation of eccentric shaft.Firmly axially be connected on eccentric shaft by wheel body by above-mentioned link one and link two, meanwhile, wheel physical efficiency is relative to eccentric shaft turns.
Wearing and tearing maximum in using process is connecting cylinder, can change separately, thus improve the working life of whole roller after connecting cylinder wearing and tearing to it.And connecting cylinder is straight-tube shape, it can easily load and unload the eccentric segment place at eccentric shaft.
In above-mentioned building hoist roller and eccentric shaft linkage structure in, described connecting cylinder and eccentric segment are transition fit.
Connecting cylinder and eccentric segment can be made firmly to link together by excessively coordinating.
In above-mentioned building hoist roller and eccentric shaft linkage structure in, described connecting cylinder and eccentric segment are Spielpassung.
This Spielpassung can meet the usage requirement of roller, thus makes it in lift, play himself effect.
In above-mentioned building hoist roller and eccentric shaft linkage structure in, described connecting cylinder and bearing inner race are transition fit.
Connecting cylinder and bearing inner race can be made to be connected firmly by excessively coordinating.
In above-mentioned building hoist roller and eccentric shaft linkage structure in, described connecting cylinder and bearing inner race are interference fit.
This Spielpassung can meet the usage requirement of roller, thus makes it in lift, play himself effect.
In above-mentioned building hoist roller and eccentric shaft linkage structure in, there is in the middle part of described eccentric shaft the gear edge of protrusion, above-mentioned eccentric segment sidepiece has locating slot one recessed ringwise, described link one is ringwise back-up ring one, above-mentioned locating slot one place is positioned at inside described back-up ring one, back-up ring one external lateral portion stretches out eccentric segment, and above-mentioned connecting cylinder is pressed between gear edge and back-up ring one.
Back-up ring one and gear, along coordinating, make connecting cylinder can be firmly axially positioned on the eccentric segment place of eccentric shaft.
In above-mentioned building hoist roller and eccentric shaft linkage structure in, the inner of described wheel body is close to above-mentioned gear along place, and the port of described wheel body outer end is connected with dust-proof cover, the cavity place between above-mentioned eccentric segment is housed in inside dust-proof cover and wheel body.
Dust-proof cover can prevent extraneous dust or foreign material from entering eccentric segment place, thus improves the stability of lift roller.
In above-mentioned building hoist roller and eccentric shaft linkage structure in, there is inside described wheel body locating slot two recessed ringwise, described link two comprises the chimb and ringwise back-up ring two that protrude outside dust-proof cover, described locating slot two place is embedded in outside above-mentioned back-up ring two, the inboard portion of back-up ring two is protruded inside wheel body, above-mentioned chimb is pressed between bearing outer ring and back-up ring two, have the convex shoulder of protrusion inside described wheel body, above-mentioned bearing outer ring is pressed between convex shoulder and chimb.
At back-up ring two, the chimb of dust-proof cover is pressed on bearing, finally makes bearing outer ring be pressed between back-up ring two and convex shoulder.
In above-mentioned building hoist roller and eccentric shaft linkage structure in, described gear along and wheel body inner port between be provided with oil sealing, above-mentioned bearing is between oil sealing and chimb.
Lubricating oil can be blocked in wheel body by oil sealing, thus the carrying out that bearing is stable is lubricated.
Certainly, according to actual needs, a lubricating cup for charging-up lubricant oil can be set on dust-proof cover.
In above-mentioned building hoist roller and eccentric shaft linkage structure in, the quantity of described bearing is two and arranges along eccentric shaft axially-aligned.
Area of contact between being increased inside eccentric segment and wheel body by two bearings, improves the stability of lift roller.
Compared with prior art, in this building hoist, the linkage structure of roller and eccentric shaft has connecting cylinder owing to overlapping at the eccentric segment place of eccentric shaft, even if connecting cylinder wearing and tearing, can change connecting cylinder separately easily, thus improve the working life of whole lift roller after using a period of time.
Meanwhile, due to the chimb on dust cover and bearing outer ring against, can be stable bearing is axially fixed on connecting cylinder, it can also position bearing while effectively preventing dust from entering, and therefore, its structure is simple, has very high use value.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the linkage structure of roller and eccentric shaft in this building hoist.
In figure, 1, eccentric shaft; 1a, eccentric segment; 1a1, locating slot one; 1b, gear edge; 2, wheel body; 2a, locating slot two; 2b, convex shoulder; 3, connecting cylinder; 4, bearing; 5, back-up ring one; 6, dust-proof cover; 6a, chimb; 7, back-up ring two; 8, oil sealing; 9, lubricating cup.
Embodiment
As shown in Figure 1, the roller of lift is connected on eccentric shaft 1, forms a roll wheel assembly after linking together.The inner of eccentric shaft 1 is used for being connected on a mounting board, and the outer end of eccentric shaft 1 has the eccentric segment 1a of eccentric setting, and wheel body 2 cylindrically.In this building hoist, the linkage structure of roller and eccentric shaft 1 comprises a connecting cylinder 3 cylindrically, and connecting cylinder 3 is enclosed within eccentric segment 1a.Wheel body 2 to be enclosed within connecting cylinder 3 and to have bearing 4 between wheel body 2 and connecting cylinder 3, has the link one that both axially can be connected between eccentric segment 1a and connecting cylinder 3, have the link two that both axially can be connected between described wheel body 2 and bearing 4.
In the present embodiment, connecting cylinder 3 and eccentric segment 1 are transition fit, and connecting cylinder 3 and bearing inner race are also transition fit.According to actual conditions, also can adopt another scheme, that is: connecting cylinder 3 and eccentric segment 1a are Spielpassung, and connecting cylinder 3 and bearing 4 inner ring are interference fit.
There is the gear of protrusion along 1b in the middle part of eccentric shaft 1, above-mentioned eccentric segment 1a sidepiece has locating slot one 1a1 recessed ringwise, described link one is ringwise back-up ring 1, above-mentioned locating slot one 1a1 place is positioned at inside described back-up ring 1, back-up ring 1 external lateral portion stretches out eccentric segment 1a, and above-mentioned connecting cylinder 3 is pressed on gear along between 1b and back-up ring 1.
The inner of wheel body 2 is close to above-mentioned gear along 1b place, and the port of described wheel body 2 outer end is connected with dust-proof cover 6, the cavity place between above-mentioned eccentric segment 1a is housed in inside dust-proof cover 6 and wheel body 2.
There is inside wheel body 2 locating slot two 2a recessed ringwise, described link two comprises the chimb 6a and ringwise back-up ring 27 that protrude outside dust-proof cover 6, described locating slot two 2a place is embedded in outside above-mentioned back-up ring 27, the inboard portion of back-up ring 27 is protruded inside wheel body 2, above-mentioned chimb 6a is pressed between bearing 4 outer ring and back-up ring 27, have the convex shoulder 2b of protrusion inside described wheel body 2, above-mentioned bearing 4 outer ring is pressed between convex shoulder 2b and chimb 6a.In the present embodiment, dust-proof cover 6 is connected with lubricating cup 9.
Gear is provided with oil sealing 8 along between 1b and wheel body 2 inner port, and above-mentioned bearing 4 is between oil sealing 8 and chimb 6a.In the present embodiment, the quantity of bearing 4 is two and arranges along eccentric shaft 1 axially-aligned.
Under the effect of bearing 4, wheel body 2 can relative to the smooth and easy rotation of eccentric shaft 1.Firmly axially be connected on eccentric shaft 1 by above-mentioned link one and link two by wheel body 2, meanwhile, wheel body 2 can rotate relative to eccentric shaft 1.
Wearing and tearing maximum in using process is connecting cylinder 3, and connecting cylinder 3 can be changed it separately after wearing and tearing, thus improves the working life of whole roller.And connecting cylinder 3 is in straight-tube shape, and it can easily load and unload the eccentric segment 1a place at eccentric shaft 1.
Meanwhile, owing to being gap or transition fit with the eccentric segment 1a of eccentric shaft 1 inside connecting cylinder 3, and be transition fit or interference fit with bearing 4 inner ring outside connecting cylinder 3.Therefore, this structure can meet the performance requirement that lift roller uses.
Claims (10)
1. the linkage structure of roller and eccentric shaft in a building hoist, the inner of eccentric shaft is used for being connected on a mounting board, the outer end of eccentric shaft has the eccentric segment of eccentric setting, wheel body cylindrically, it is characterized in that, this structure also comprises a connecting cylinder cylindrically, above-mentioned connecting cylinder is enclosed within eccentric segment, above-mentioned wheel body to be enclosed within connecting cylinder and to have bearing between wheel body and connecting cylinder, there is between described eccentric segment and connecting cylinder the link one that both axially can be connected, there is between described wheel body and bearing the link two that both axially can be connected.
2. the linkage structure of roller and eccentric shaft in building hoist according to claim 1, it is characterized in that, described connecting cylinder and eccentric segment are transition fit.
3. the linkage structure of roller and eccentric shaft in building hoist according to claim 1, it is characterized in that, described connecting cylinder and eccentric segment are Spielpassung.
4. the linkage structure of roller and eccentric shaft in building hoist according to claim 1, it is characterized in that, described connecting cylinder and bearing inner race are transition fit.
5. the linkage structure of roller and eccentric shaft in building hoist according to claim 1, it is characterized in that, described connecting cylinder and bearing inner race are interference fit.
6. the linkage structure of roller and eccentric shaft in building hoist according to claim 1, it is characterized in that, there is in the middle part of described eccentric shaft the gear edge of protrusion, above-mentioned eccentric segment sidepiece has locating slot one recessed ringwise, described link one is ringwise back-up ring one, be positioned at above-mentioned locating slot one place inside described back-up ring one, back-up ring one external lateral portion stretches out eccentric segment, and above-mentioned connecting cylinder is pressed between gear edge and back-up ring one.
7. the linkage structure of roller and eccentric shaft in building hoist according to claim 6, it is characterized in that, the inner of described wheel body is close to above-mentioned gear along place, and the port of described wheel body outer end is connected with dust-proof cover, the cavity place between above-mentioned eccentric segment is housed in inside dust-proof cover and wheel body.
8. the linkage structure of roller and eccentric shaft in building hoist according to claim 1, it is characterized in that, there is inside described wheel body locating slot two recessed ringwise, described link two comprises the chimb and ringwise back-up ring two that protrude outside dust-proof cover, described locating slot two place is embedded in outside above-mentioned back-up ring two, the inboard portion of back-up ring two is protruded inside wheel body, above-mentioned chimb is pressed between bearing outer ring and back-up ring two, have the convex shoulder of protrusion inside described wheel body, above-mentioned bearing outer ring is pressed between convex shoulder and chimb.
9. the linkage structure of roller and eccentric shaft in building hoist according to claim 6, is characterized in that, described gear along and wheel body inner port between be provided with oil sealing, above-mentioned bearing is between oil sealing and chimb.
10. the linkage structure of roller and eccentric shaft in building hoist according to claim 9, it is characterized in that, the quantity of described bearing is two and arranges along eccentric shaft axially-aligned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499049.1U CN204082951U (en) | 2014-09-01 | 2014-09-01 | The linkage structure of roller and eccentric shaft in building hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499049.1U CN204082951U (en) | 2014-09-01 | 2014-09-01 | The linkage structure of roller and eccentric shaft in building hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082951U true CN204082951U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420499049.1U Expired - Fee Related CN204082951U (en) | 2014-09-01 | 2014-09-01 | The linkage structure of roller and eccentric shaft in building hoist |
Country Status (1)
| Country | Link |
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| CN (1) | CN204082951U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108465705A (en) * | 2018-05-09 | 2018-08-31 | 大冶特殊钢股份有限公司 | A kind of anti-jamming cooling-bed apron plate side wheel being conveniently replaceable |
| US10457523B2 (en) | 2016-04-15 | 2019-10-29 | Otis Elevator Company | Guide rail support configured to account for building settling |
| CN113389804A (en) * | 2021-04-20 | 2021-09-14 | 中国航空工业集团公司北京长城航空测控技术研究所 | Eccentric roller assembly bearing rotation structure and adjusting method thereof |
-
2014
- 2014-09-01 CN CN201420499049.1U patent/CN204082951U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10457523B2 (en) | 2016-04-15 | 2019-10-29 | Otis Elevator Company | Guide rail support configured to account for building settling |
| CN108465705A (en) * | 2018-05-09 | 2018-08-31 | 大冶特殊钢股份有限公司 | A kind of anti-jamming cooling-bed apron plate side wheel being conveniently replaceable |
| CN108465705B (en) * | 2018-05-09 | 2023-12-22 | 大冶特殊钢有限公司 | Anti-jamming cooling bed apron board side wheel convenient to replace |
| CN113389804A (en) * | 2021-04-20 | 2021-09-14 | 中国航空工业集团公司北京长城航空测控技术研究所 | Eccentric roller assembly bearing rotation structure and adjusting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20160901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |