CN203566611U - Labor-saving shaft shift device - Google Patents
Labor-saving shaft shift device Download PDFInfo
- Publication number
- CN203566611U CN203566611U CN201320795092.8U CN201320795092U CN203566611U CN 203566611 U CN203566611 U CN 203566611U CN 201320795092 U CN201320795092 U CN 201320795092U CN 203566611 U CN203566611 U CN 203566611U
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- Prior art keywords
- gear
- screw rod
- shaft
- bearing pin
- sleeve
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- 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 - Fee Related
Links
- 210000004907 gland Anatomy 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a labor-saving shaft shift device which comprises a pin shaft, wherein a sleeve is positioned at one end of the pin shaft; a self-lubricating bushing is respectively arranged at two ends of the sleeve; the pin shaft is in sliding fit with the self-lubricating bushings; a screw rod is supported at one end, away from the pin shaft, of the sleeve; the end part of the screw rod is fixedly provided with a gear; the gear is meshing fit with a gear shaft; the pitch circle diameter of the gear is larger than that of the gear shaft; the free end of the gear shaft is provided with a handwheel; the other end of the screw rod is connected with a nut through threads; the nut is connected with the end part of the pin shaft through a connecting screw. According to the labor-saving shaft shift device disclosed by the utility model, as the gear set and the screw and nut mechanisms are arranged, the problem that a movable pulley device of a large-size hoist difficultly realizes shaft passing in the prior art can be solved, the force required by manually rotating the handwheel of the shaft shift device is alleviated, the pin shaft can be penetrated into lifting lug holes of a gate reliably without adopting additional tools, the operability and the reliability of the hoist is improved, the labor intensity is reduced, and the site working conditions are improved.
Description
Technical field
The utility model relates to a kind of mobile bearing pin, especially a kind of laborsaving shaft device that moves that is applicable to mobile bearing pin in heavy movable pulley device.
Background technology
Along with the sustainable development of Chinese national economy, electricity needs also continues to continue to increase rapidly.The large-scale power station project of and soon having built on Upper Yangtze River master stream and Dadu River, Yalongjiang River at present has 33; Along with the continuous increase of China's power load, the power structure of electrical network and load curve are in continuous variation, peaking problem is outstanding day by day, as the power station of peak load regulation network function--and the construction of the large capacity hydroenergy storage station of high water head is also on the increase, to meet peak load regulation network requirement.Therefore the demand of large load winch hoist is also more and more.
Fig. 1 penetrates in the process of gate ear lifting hole(eyelet) at the bearing pin of winch hoist movable pulley device, because the deadweight of bearing pin makes movable pulley device towards one side deflection, produces larger frictional resistance, between bearing pin and hanger hole when wearing axle in Fig. 1.Along with the increase of headstock gear capacity (being hoisting capacity), the weight of movable pulley device bearing pin also increases, and the resistance while wearing axle is also increasing.
For ultra-large type winch hoist, the weight of movable pulley device bearing pin can reach 2000kg, due to too large at place, hanger hole resistance when wearing axle or de-axle, at building-site, sometimes adopt crow bar to rotate handwheel, easily cause the damage of movable pulley device handwheel and screw rod.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of laborsaving shaft device that moves, and can reduce the labour intensity of mobile bearing pin, improves on-the-spot working condition.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of laborsaving shaft device that moves, comprise bearing pin, and sleeve is positioned at one end of bearing pin, and sleeve two ends are provided with self-lubricating bushing, and bearing pin and self-lubricating bushing form and are slidably matched,
Sleeve is supported with screw rod away from one end of bearing pin, and the termination of screw rod is installed with gear, gear and gear shaft engagement fit, and the reference diameter of gear is greater than the reference diameter of gear shaft, and the free end of gear shaft is provided with handwheel;
The other end of screw rod is connected with nut thread, and nut is connected with the end of bearing pin by attachment screw.
Described screw rod is the screw rod with trapezoidal thread.
Sleeve is connected with internal end cover by flange away from one end of bearing pin, is provided with a rolling bearing between internal end cover and screw rod, and end face and the gland of internal end cover are connected by screw, and in gland and between screw rod, is provided with another rolling bearing.
Internal end cover is also connected with outer end cap by flange, and the termination of screw rod is bearing on outer end cap by self-lubricating bearing, and gear shaft two ends are bearing between outer end cap and internal end cover by self-lubricating bearing.
Described bearing pin axle center has the through hole for holding screw rod, on the surface of bearing pin, has groove, with dog screw location, when bearing pin moves, does not rotate; At bearing pin, away from the other end of sleeve, be also provided with balancing weight, balancing weight axle center has passage.
The laborsaving shaft device that moves of one that the utility model provides, by arrange gear train and and bolt and nut mechanism, can overcome the large-scale headstock gear movable pulley device of prior art and wear the problem of axle difficulty, alleviate artificial rotation and moved the required strength of shaft device handwheel, do not need to adopt other instrument just can reliably bearing pin be penetrated in gate lifting eye hole, the operability and the reliability that have improved headstock gear, reduced labour intensity, improved on-the-spot working condition.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is the structural representation while wearing bearing pin of the prior art.
Fig. 2 is the overall structure schematic diagram of the utility model device.
Fig. 3 is the structural representation of the utility model middle gear device and bolt and nut mechanism.
In figure: screw rod 1, sleeve 2, self-lubricating bushing 3, internal end cover 4, gland 5, outer end cap 6, gear 7, rolling bearing 8, self-lubricating bearing 9, handwheel 10, gear shaft 11, dog screw 12, gate lifting eye 13, nut 14, bearing pin 15, attachment screw 16, movable pulley 17, balancing weight 18.
The specific embodiment
As Fig. 2～3, a kind of laborsaving shaft device that moves, comprises bearing pin 15, and sleeve 2 is positioned at one end of bearing pin 15, and sleeve 2 two ends are provided with self-lubricating bushing 3, and bearing pin 15 forms and is slidably matched with self-lubricating bushing 3,
Sleeve 2 is supported with screw rod 1 away from one end of bearing pin 15, and the termination of screw rod 1 is installed with gear 7, gear 7 and gear shaft 11 engagement fit, and the reference diameter of gear 7 is greater than the reference diameter of gear shaft 11, and the free end of gear shaft 11 is provided with handwheel 10;
The other end of screw rod 1 is threaded with nut 14, and nut 14 is connected with the end face of bearing pin 15 by attachment screw 16.Structure thus, after nut 14 is reliably connected with bearing pin 15, rotates handwheel 10, can bearing pin 15 be penetrated or be thrown off from gate lifting eye hole labour-saving.
Preferred as in Fig. 2, described screw rod 1 is trapezoid thread screw, and this structural-load-carrying capacity is large, is applicable in heavy movable pulley device.
Preferred as in Fig. 2, described bearing pin 15 axle center have the through hole for holding screw rod 1, on the surface of bearing pin 15, have groove, with dog screw 12, locate, and at bearing pin 15, away from the other end of sleeve 2, are also provided with balancing weight 18, and balancing weight 18 axle center have passage.Structure thus, when screw rod and nut combinations transmission, bearing pin 15 moves vertically, and balancing weight 18 is convenient to realize the spacing of bearing pin 15, and the through hole arranging on balancing weight 18 is convenient to the Bas Discharged of sealing place.
Claims (5)
1. the laborsaving shaft device that moves, comprises bearing pin (15), it is characterized in that: sleeve (2) is positioned at one end of bearing pin (15), and sleeve (2) two ends are provided with self-lubricating bushing (3), and bearing pin (15) forms and is slidably matched with self-lubricating bushing (3),
Sleeve (2) is supported with screw rod (1) away from one end of bearing pin (15), the termination of screw rod (1) is installed with gear (7), gear (7) and gear shaft (11) engagement fit, the reference diameter of gear (7) is greater than the reference diameter of gear shaft (11), and the free end of gear shaft (11) is provided with handwheel (10);
The other end of screw rod (1) is threaded with nut (14), and nut (14) is connected with the end face of bearing pin (15) by attachment screw (16), and bearing pin (15) axle center has the hole for holding screw rod (1).
2. the laborsaving shaft device that moves of one according to claim 1, is characterized in that: described screw rod (1) is trapezoid thread screw.
3. the laborsaving shaft device that moves of one according to claim 1, it is characterized in that: sleeve (2) is connected with internal end cover (4) by flange away from one end of bearing pin (15), between internal end cover (4) and screw rod (1), be provided with a rolling bearing, the end face of internal end cover (4) is also connected by screw with gland (5), in gland (5) and between screw rod (1), is also provided with another rolling bearing.
4. the laborsaving shaft device that moves of one according to claim 3, it is characterized in that: internal end cover (4) is also connected with outer end cap (6) by flange, it is upper that the termination of screw rod (1) is bearing in outer end cap (6) by self-lubricating bearing (9), and gear shaft (11) two ends are bearing between outer end cap (6) and internal end cover (4) by self-lubricating bearing.
5. the laborsaving shaft device that moves of one according to claim 1, it is characterized in that: described bearing pin (15) axle center has the through hole for holding screw rod (1), surface at bearing pin (15) has groove, with dog screw (12) location, when bearing pin (15) is mobile, does not rotate; At bearing pin (15), away from the other end of sleeve (2), be also provided with balancing weight (18), balancing weight (18) axle center has passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320795092.8U CN203566611U (en) | 2013-12-06 | 2013-12-06 | Labor-saving shaft shift device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320795092.8U CN203566611U (en) | 2013-12-06 | 2013-12-06 | Labor-saving shaft shift device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203566611U true CN203566611U (en) | 2014-04-30 |
Family
ID=50534369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320795092.8U Expired - Fee Related CN203566611U (en) | 2013-12-06 | 2013-12-06 | Labor-saving shaft shift device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203566611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002840A (en) * | 2016-06-20 | 2016-10-12 | 中核(天津)科技发展有限公司 | Steel wire retainer ring mounting tool for hollow long shaft parts |
-
2013
- 2013-12-06 CN CN201320795092.8U patent/CN203566611U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002840A (en) * | 2016-06-20 | 2016-10-12 | 中核(天津)科技发展有限公司 | Steel wire retainer ring mounting tool for hollow long shaft parts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GEZHOUBA MACHINERY INDUSTRY CO., LTD. Free format text: FORMER OWNER: GEZHOUBA GROUP MACHINERY + SHIP CO., LTD. OF CHINA Effective date: 20150609 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Aiguo Inventor after: Zhang Qingjun Inventor after: Li Xiaoming Inventor after: Wang Juan Inventor after: Li Yajiang Inventor after: Shen Geng Inventor after: Jian Qing Qin Inventor after: Zuo Chen Inventor before: Chen Aiguo Inventor before: Zhang Qingjun Inventor before: Li Xiaoming Inventor before: Wang Juan Inventor before: Li Yajiang Inventor before: Shen Geng Inventor before: Jian Qing Qin Inventor before: Zuo Chen |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150609 Address after: 18 No. 443007 Hubei city of Yichang province located in Xiaoting District Road Patentee after: GEZHOUBA MACHINERY INDUSTRIAL CO.,LTD. Address before: 18 No. 443007 Hubei city in Yichang province Xiao Ting Road Patentee before: CHINA GEZHOUBA GROUP MACHINERY & SHIP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171229 Address after: 18 No. 443007 Hubei city in Yichang province Xiao Ting Road Patentee after: CHINA GEZHOUBA GROUP MACHINERY & SHIP Co.,Ltd. Address before: 18 No. 443007 Hubei city of Yichang province located in Xiaoting District Road Patentee before: GEZHOUBA MACHINERY INDUSTRIAL CO.,LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20211206 |