CN105480897A - Gear and rack lifting mechanism - Google Patents
Gear and rack lifting mechanism Download PDFInfo
- Publication number
- CN105480897A CN105480897A CN201511029192.XA CN201511029192A CN105480897A CN 105480897 A CN105480897 A CN 105480897A CN 201511029192 A CN201511029192 A CN 201511029192A CN 105480897 A CN105480897 A CN 105480897A
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- CN
- China
- Prior art keywords
- lifting mechanism
- oil cylinder
- gear
- output shaft
- erecting frame
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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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/12—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F2700/00—Lifting apparatus
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a gear and rack lifting mechanism, and belongs to the technical field of lifting equipment. The lifting mechanism comprises a climbing gear, a rack, a gear box and a mounting frame; the climbing gear is coaxially mounted on an output shaft of the gear box; an output shaft of the gear box is inserted in the mounting frame; and the climbing gear is engaged with the rack. The lifting mechanism further comprises a load detecting component; the loading detecting component includes a cantilever, an oil cylinder and a sensor for detecting inner pressure of the oil cylinder; one end of the cantilever is fixedly connected with a shell of the gear box, and the other end of the cantilever is hinged to the top end of the oil cylinder; the bottom end of the oil cylinder is hinged with the mounting frame; a mounting sleeve is arranged on the side wall of the mounting frame, and includes a limiting plate, a bearing sleeve and a bearing; a limiting flange matched with the limiting plate is mounted at the top end of the output shaft; the output shaft is inserted in the mounting sleeve; the bearing sleeve is mounted on the outer side of the limiting plate; the bearing coats the output shaft; and the bearing is positioned between the limiting plate and the limiting flange. The lifting mechanism reduces the sensor maintenance difficulty.
Description
Technical field
The invention belongs to jacking equipment technical field, particularly a kind of rack-and-gear lifting mechanism.
Background technology
Self-elevating ocean platform is a kind of common ocean engineering jacking equipment, and it passes through the lifting of rack-and-gear lifting mechanism implementation platform and spud leg.Common rack-and-gear lifting mechanism mainly comprises climbing gear, tooth bar, load transducer, by engaging of climbing gear and tooth bar, to realize the lifting action of rack-and-gear lifting mechanism, while rack-and-gear lifting mechanism performs lifting action, the load suffered by load transducer Real-Time Monitoring rack-and-gear lifting mechanism.But, because self-elevating ocean platform is in severe working environment for a long time, cause load transducer very easily to damage, once load transducer damages, whole rack-and-gear lifting mechanism must be taken apart and change, installation process extremely bothers, by the manpower and materials of at substantial.
Summary of the invention
In order to solve the problem of the load transducer maintenance difficult in existing rack-and-gear lifting mechanism, embodiments provide a kind of rack-and-gear lifting mechanism.Described technical scheme is as follows:
Embodiments provide a kind of rack-and-gear lifting mechanism, described lifting mechanism comprises: climbing gear, tooth bar, gear case and erecting frame, described climbing gear is coaxially arranged on the output shaft of described gear case, the output shaft of described gear case is inserted in described erecting frame, described climbing gear engages with described tooth bar, described lifting mechanism also comprises load detection components, described load detection components comprises cantilever, oil cylinder and the sensor for detecting pressure in described oil cylinder, one end of described cantilever is fixedly connected with the housing of described gear case, the other end of described cantilever and the top of described oil cylinder hinged, bottom and the described erecting frame of described oil cylinder are hinged, the sidewall of described erecting frame is provided with installation sleeve, described installation sleeve comprises positioning plate, bearing carrier ring and bearing, on the parallel sidewall being fixedly mounted on described erecting frame of described positioning plate, the top of described output shaft is provided with the spacing flange matched with described positioning plate, described output shaft is inserted in described installation sleeve rotationally, described bearing carrier ring is coaxially arranged on the outside of described positioning plate, described coaxial bearing is sleeved on described output shaft, described bearing is between described positioning plate and described spacing flange.
In a kind of implementation of the present invention, the internal diameter of described positioning plate is less than the external diameter of described spacing flange.
In another kind of implementation of the present invention, described installation sleeve also comprises attachment flange, and described attachment flange is coaxially arranged on the top of described bearing carrier ring, and described bearing carrier ring is arranged on the outside of described positioning plate by described attachment flange.
In another implementation of the present invention, multiple reinforcement gusset is provided with outside described bearing carrier ring, described multiple reinforcement gusset along described bearing carrier ring periphery wall circumferentially, each described reinforcement gusset is all fixedly connected with the sidewall of described erecting frame with the periphery wall of described bearing carrier ring.
In another implementation of the present invention, described gear case comprises first input end and the second input end, described first input end and described second input end interval are arranged, described first input end is used for being communicated with drg, and described second input end is used for being communicated with HM Hydraulic Motor.
In another implementation of the present invention, on the sidewall of described erecting frame, the position of corresponding described oil cylinder bottom is provided with boss, and described boss is vertically mounted on the sidewall of described erecting frame, and bottom and the described boss of described oil cylinder are hinged.
In another implementation of the present invention, described cantilever is provided with lightening hole.
In another implementation of the present invention, described load detection components also comprises shuttle valve, the first input end of described shuttle valve is communicated with the rod chamber of described oil cylinder, and the second input end of described shuttle valve is communicated with the rodless cavity of described oil cylinder, and the mouth of described shuttle valve is communicated with described sensor.
In another implementation of the present invention, described load detection components also comprises safety valve, and described safety valve is communicated with the rodless cavity of described oil cylinder.
In another implementation of the present invention, described gear case is epicyclic gear box.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
By configuring climbing gear in lifting mechanism, tooth bar, gear case, erecting frame and load detection components, load detection components comprises cantilever, oil cylinder and the sensor for detecting pressure in oil cylinder, one end of cantilever is fixedly connected with the housing of gear case, the other end of cantilever and the top of oil cylinder hinged, bottom and the erecting frame of oil cylinder are hinged, when spud leg and earth surface stressed time, under gravity, the load of platform acts on tooth bar by climbing gear, thus make climbing gear obtain the moment of torsion rotated, this moment of torsion is passed to cantilever by the housing of gear case by climbing gear, cantilever acts on oil cylinder after obtaining moment of torsion, sensor is made the size of oil cylinder pressure to be detected, and then detect the load that climbing gear bears, when platform and earth surface stressed time, under gravity, the load of spud leg acts on climbing gear by tooth bar, thus make climbing gear obtain the moment of torsion of contrarotation, this moment of torsion is passed to cantilever by the housing of gear case by climbing gear, cantilever acts on oil cylinder after obtaining moment of torsion, sensor is made the size of oil cylinder pressure to be detected, and then detect the load that climbing gear bears, thus the detection achieved load suffered by climbing gear, because load detection components is independent of lifting mechanism, so do not need to dismantle whole lifting mechanism when keeping in repair, thus reduce the difficulty of maintenance sensor.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the plan structure schematic diagram of the lifting mechanism that the embodiment of the present invention provides;
Fig. 2 is that the master of the lifting mechanism that the embodiment of the present invention provides looks partial perspective schematic diagram;
Fig. 3 is the oil circuit schematic diagram of the load detection components that the embodiment of the present invention provides;
In figure, each symbol represents that implication is as follows:
1-climbing gear, 2-tooth bar, 3-gear case, 31-output shaft, 32-housing, the spacing flange of 33-, 34-first input end, 35-second input end, 4-erecting frame, 41-installation sleeve, 42-positioning plate, 43-bearing carrier ring, 44-bearing, 45-strengthens gusset, 46-boss, 47-attachment flange, 5-load detection components, 51-cantilever, 52-oil cylinder, 53-sensor, 54-lightening hole, 55-shuttle valve, 56-safety valve, 6-spud leg, the rod chamber of a-oil cylinder, the rodless cavity of b-oil cylinder.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment
A kind of rack-and-gear lifting mechanism that the embodiment of the present invention provides, as illustrated in fig. 1 and 2, lifting mechanism comprises: climbing gear 1, tooth bar 2, gear case 3 and erecting frame 4, climbing gear 1 is coaxially arranged on the output shaft 31 of gear case 3, the output shaft 31 of gear case 3 is inserted in erecting frame 4, climbing gear 1 engages with tooth bar 2, lifting mechanism also comprises load detection components 5, load detection components 5 comprises cantilever 51, oil cylinder 52 and the sensor 53 for detecting pressure in oil cylinder 52, one end of cantilever 51 is fixedly connected with the housing 32 of gear case 3, the other end of cantilever 51 and the top of oil cylinder 52 hinged, bottom and the erecting frame 4 of oil cylinder 52 are hinged, the sidewall of erecting frame 4 is provided with installation sleeve 41, installation sleeve 41 comprises positioning plate 42, bearing carrier ring 43 and bearing 44, on the parallel sidewall being fixedly mounted on erecting frame 4 of positioning plate 42, the top of output shaft 31 is provided with the spacing flange 33 matched with positioning plate 42, output shaft 31 is inserted in installation sleeve 41 rotationally, bearing carrier ring 43 is coaxially arranged on the outside of positioning plate 42, bearing 44 coaxial package is on output shaft 31, bearing 44 is between positioning plate 42 and spacing flange 33.
The present embodiment by configuring climbing gear 1 in lifting mechanism, tooth bar 2, gear case 3, erecting frame 4 and load detection components 5, load detection components 5 comprises cantilever 51, oil cylinder 52 and the sensor 53 for detecting pressure in oil cylinder 52, one end of cantilever 51 is fixedly connected with the housing 32 of gear case 3, the other end of cantilever 51 and the top of oil cylinder 52 hinged, bottom and the erecting frame 4 of oil cylinder 52 are hinged, when spud leg 6 and earth surface are stressed, under gravity, the load of platform acts on tooth bar 2 by climbing gear 1, thus make climbing gear 1 obtain the moment of torsion rotated, this moment of torsion is passed to cantilever 51 by the housing 32 of gear case 3 by climbing gear 1, cantilever 51 acts on oil cylinder 52 after obtaining moment of torsion, sensor 53 is made the size of oil cylinder 52 pressure to be detected, and then detect the load that climbing gear 1 bears, when platform and earth surface stressed time, under gravity, the load of spud leg 6 acts on climbing gear 1 by tooth bar 2, thus make climbing gear 1 obtain the moment of torsion of contrarotation, this moment of torsion is passed to cantilever 51 by the housing 32 of gear case 3 by climbing gear 1, cantilever 51 acts on oil cylinder 52 after obtaining moment of torsion, sensor 53 is made the size of oil cylinder 52 pressure to be detected, and then detect the load that climbing gear 1 bears, thus the detection achieved load suffered by climbing gear 1, because load detection components 5 is independent of lifting mechanism, so do not need to dismantle whole lifting mechanism when keeping in repair, thus reduce the difficulty of maintenance sensor 53.
In above-mentioned implementation, gear case 3 can be epicyclic gear box.
In the present embodiment, the internal diameter of positioning plate 42 is less than the external diameter of spacing flange 33, and positioning plate 42 and spacing flange 33 cooperatively interact with the longitudinal travel of limiting gear case 3.Preferably, spacing flange 33 is bolted with the top of output shaft 31, spacing flange 33 is linked together with output shaft 31 detouchable, thus is convenient to gear case 3 to disassemble in erecting frame 4.
Particularly, bearing carrier ring 43 is for location bearing 44, and bearing 44 is for limiting the radial displacement of output shaft 31.Preferably, bearing 44 can be deep groove ball bearing, easy understand, and in other embodiments, the kind of bearing 44 is not limited to above-mentioned preferred version, and can also be other kind, the present invention limit this.
Particularly, installation sleeve 41 also comprises attachment flange 47, and attachment flange 47 is coaxially arranged on the top of bearing carrier ring 43, and bearing carrier ring 43 is arranged on the outside of positioning plate 42 by attachment flange 47.In above-mentioned implementation, by bolt, attachment flange 47, bearing carrier ring 43 and positioning plate 42 can be connected in turn, thus be convenient to dismounting bearing carrier ring 43.
Particularly, multiple reinforcement gusset 45 is provided with outside bearing carrier ring 43, multiple reinforcement gusset 45 along bearing carrier ring 43 periphery wall circumferentially, each reinforcement gusset 45 is all fixedly connected with the sidewall of erecting frame 4 with the periphery wall of bearing carrier ring 43, strengthens gusset 45 and can play the effect of pivot shaft bearing sleeve 43.
In the present embodiment, gear case 3 comprises first input end 34 and the second input end 35, first input end 34 and the second input end 35 interval are arranged, first input end 34 is for being communicated with drg, second input end 35 is for being communicated with HM Hydraulic Motor, thus avoid drg and HM Hydraulic Motor is coaxially arranged, and then reduce the axial dimension of gear case 3, improve the rigidity of structure.Preferably, HM Hydraulic Motor can be axial piston motor.
In the present embodiment, on the sidewall of erecting frame 4, the position of corresponding oil cylinder 52 bottom is provided with boss 46, boss 46 is vertically mounted on the sidewall of erecting frame 4, bottom and the boss 46 of oil cylinder 52 are hinged, make that oil cylinder 52 is mobilizable to be arranged on erecting frame 4, thus can along with the swing of cantilever 51 self-adaptative adjustment angle.
Preferably, cantilever 51 is provided with lightening hole 54, to reduce the overall weight of load detection components 5, reduces the load suffered by erecting frame 4.
See Fig. 3, in the present embodiment, load detection components 5 also comprises shuttle valve 55, the first input end of shuttle valve 55 is communicated with the rod chamber a of oil cylinder 52, second input end of shuttle valve 55 is communicated with the rodless cavity b of oil cylinder 52, the mouth of shuttle valve 55 is communicated with sensor 53, thus makes sensor 53 the rod chamber a of oil cylinder 52 and the pressure of rodless cavity b can be detected simultaneously, simplifies the structure of load detection components 5.
Particularly; load detection components 5 also comprises safety valve 56; safety valve 56 is communicated with the rodless cavity of oil cylinder 52; when the load suffered by oil cylinder 52 is greater than setting value; safety valve 56 is opened; hydraulic oil overflow in the rodless cavity b of beam hanger is gone out, thus oil cylinder 52 is shunk, to play the effect of protection gear case 3.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a rack-and-gear lifting mechanism, described lifting mechanism comprises: climbing gear, tooth bar, gear case and erecting frame, described climbing gear is coaxially arranged on the output shaft of described gear case, the output shaft of described gear case is inserted in described erecting frame, described climbing gear engages with described tooth bar, it is characterized in that, described lifting mechanism also comprises load detection components, described load detection components comprises cantilever, oil cylinder and the sensor for detecting pressure in described oil cylinder, one end of described cantilever is fixedly connected with the housing of described gear case, the other end of described cantilever and the top of described oil cylinder hinged, bottom and the described erecting frame of described oil cylinder are hinged, the sidewall of described erecting frame is provided with installation sleeve, described installation sleeve comprises positioning plate, bearing carrier ring and bearing, on the parallel sidewall being fixedly mounted on described erecting frame of described positioning plate, the top of described output shaft is provided with the spacing flange matched with described positioning plate, described output shaft is inserted in described installation sleeve rotationally, described bearing carrier ring is coaxially arranged on the outside of described positioning plate, described coaxial bearing is sleeved on described output shaft, described bearing is between described positioning plate and described spacing flange.
2. lifting mechanism according to claim 1, is characterized in that, the internal diameter of described positioning plate is less than the external diameter of described spacing flange.
3. lifting mechanism according to claim 1, is characterized in that, described installation sleeve also comprises attachment flange, and described attachment flange is coaxially arranged on the top of described bearing carrier ring, and described bearing carrier ring is arranged on the outside of described positioning plate by described attachment flange.
4. lifting mechanism according to claim 1, it is characterized in that, multiple reinforcement gusset is provided with outside described bearing carrier ring, described multiple reinforcement gusset along described bearing carrier ring periphery wall circumferentially, each described reinforcement gusset is all fixedly connected with the sidewall of described erecting frame with the periphery wall of described bearing carrier ring.
5. lifting mechanism according to claim 1, it is characterized in that, described gear case comprises first input end and the second input end, described first input end and described second input end interval are arranged, described first input end is used for being communicated with drg, and described second input end is used for being communicated with HM Hydraulic Motor.
6. lifting mechanism according to claim 1, is characterized in that, on the sidewall of described erecting frame, the position of corresponding described oil cylinder bottom is provided with boss, and described boss is vertically mounted on the sidewall of described erecting frame, and bottom and the described boss of described oil cylinder are hinged.
7. lifting mechanism according to claim 1, is characterized in that, described cantilever is provided with lightening hole.
8. lifting mechanism according to claim 1, it is characterized in that, described load detection components also comprises shuttle valve, the first input end of described shuttle valve is communicated with the rod chamber of described oil cylinder, second input end of described shuttle valve is communicated with the rodless cavity of described oil cylinder, and the mouth of described shuttle valve is communicated with described sensor.
9. lifting mechanism according to claim 8, is characterized in that, described load detection components also comprises safety valve, and described safety valve is communicated with the rodless cavity of described oil cylinder.
10. lifting mechanism according to claim 1, is characterized in that, described gear case is epicyclic gear box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511029192.XA CN105480897B (en) | 2015-12-31 | 2015-12-31 | A kind of rack-and-pinion elevating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511029192.XA CN105480897B (en) | 2015-12-31 | 2015-12-31 | A kind of rack-and-pinion elevating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105480897A true CN105480897A (en) | 2016-04-13 |
| CN105480897B CN105480897B (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511029192.XA Active CN105480897B (en) | 2015-12-31 | 2015-12-31 | A kind of rack-and-pinion elevating mechanism |
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| CN (1) | CN105480897B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105923566A (en) * | 2016-05-03 | 2016-09-07 | 武汉船用机械有限责任公司 | Modularized hydraulic gear and rack lifting mechanism |
| CN107642077A (en) * | 2017-08-24 | 2018-01-30 | 中国海洋石油总公司 | A kind of maintenance intervention method of drilling platforms cantilever beam |
| CN110228764A (en) * | 2019-07-15 | 2019-09-13 | 河南祥鼎智能科技股份有限公司 | A kind of rack-and-pinion lifting device for AGV |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005067793A (en) * | 2003-08-22 | 2005-03-17 | Masabumi Nakade | Spud strut swinging and standing device |
| CN102539037A (en) * | 2011-11-18 | 2012-07-04 | 杭州欧佩亚海洋工程有限公司 | Force moment sensor for output pinion of self-elevating platform elevating unit |
| CN204237509U (en) * | 2014-11-20 | 2015-04-01 | 泰州市泓博舞台设备科技有限公司 | A kind of multistage gear rack elevating system |
| CN105152071A (en) * | 2015-07-23 | 2015-12-16 | 苏州卫生职业技术学院 | Gear and rack type boosting mechanism |
-
2015
- 2015-12-31 CN CN201511029192.XA patent/CN105480897B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005067793A (en) * | 2003-08-22 | 2005-03-17 | Masabumi Nakade | Spud strut swinging and standing device |
| CN102539037A (en) * | 2011-11-18 | 2012-07-04 | 杭州欧佩亚海洋工程有限公司 | Force moment sensor for output pinion of self-elevating platform elevating unit |
| CN204237509U (en) * | 2014-11-20 | 2015-04-01 | 泰州市泓博舞台设备科技有限公司 | A kind of multistage gear rack elevating system |
| CN105152071A (en) * | 2015-07-23 | 2015-12-16 | 苏州卫生职业技术学院 | Gear and rack type boosting mechanism |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105923566A (en) * | 2016-05-03 | 2016-09-07 | 武汉船用机械有限责任公司 | Modularized hydraulic gear and rack lifting mechanism |
| CN107642077A (en) * | 2017-08-24 | 2018-01-30 | 中国海洋石油总公司 | A kind of maintenance intervention method of drilling platforms cantilever beam |
| CN107642077B (en) * | 2017-08-24 | 2019-09-06 | 中国海洋石油集团有限公司 | A kind of maintenance intervention method of drilling platforms cantilever beam |
| CN110228764A (en) * | 2019-07-15 | 2019-09-13 | 河南祥鼎智能科技股份有限公司 | A kind of rack-and-pinion lifting device for AGV |
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| Publication number | Publication date |
|---|---|
| CN105480897B (en) | 2017-12-01 |
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