CN201574386U - Worm gear jacking machine - Google Patents
Worm gear jacking machine Download PDFInfo
- Publication number
- CN201574386U CN201574386U CN 200920213014 CN200920213014U CN201574386U CN 201574386 U CN201574386 U CN 201574386U CN 200920213014 CN200920213014 CN 200920213014 CN 200920213014 U CN200920213014 U CN 200920213014U CN 201574386 U CN201574386 U CN 201574386U
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- Prior art keywords
- worm
- worm gear
- screw
- power source
- couple
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- Expired - Lifetime
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Abstract
The utility model discloses a worm gear jacking machine, which is applicable in self-elevating engineering platforms. The machine comprises a worm gear pair, a power source used for driving a worm of the worm gear pair to rotate, and a screw linked with a gear of the worm gear pair. The worm gear pair is a planar single-enveloping worm gear pair; the screw is provided with serrate threads; and a pair of conical roller bearings mounted opposite to each other is sleeved at one end, close to the power source, of the worm of the worm gear pair, while a cylindrical self-aligning roller bearing is mounted at the other end. The machine has the advantages of convenient assembly, high transmission efficiency, large bearing capacity, low manufacturing cost and the like.
Description
Technical field
The utility model relates to the worm and gear lift-up device.
Background technology
Jack-up unit is the various mobile ocean engineering platform that are used for marine energy sources exploitation and prospecting, platform is usually by three or the support of more spud legs, every pile leg all is equipped with longitudinal rack, and with the pinion of transmission, pinion is a power source with hydraulic pressure or motor.During work spud leg is inserted the seabed, after platform rises to off sea trouble free service height, promote the profile of tooth piece and pin tooth bar by the worm and gear jacking device in the locking device.
Existing worm and gear jacking device mostly adopts cylindrical worm gearing transmission or the ring surface enveloped worm-drive of Planar Quadratic, and leading screw then adopts trapezoidal thread.In these two kinds of schemes, though adopt the cylindrical worm gearing transmission handling ease, install simply, transmission efficiency is low, and supporting capacity is low; Though adopt planar double-enveloping worm efficient and supporting capacity to improve, processing difficulties, assembly precision requires high, and is less economical.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the above-mentioned defective of prior art, provide a kind of easy for installation, transmission efficiency is high, supporting capacity is big, the worm and gear jacking device of low cost of manufacture.
The technical scheme that the utility model adopted is: a kind of worm and gear jacking device, comprise worm couple, be used to drive the power source of worm screw rotation of this worm couple and the leading screw that connects with the worm gear of this worm couple, this leading screw is converted to straight line with rotation and moves, the worm screw two ends of this worm couple all are equipped with bearing, be characterized in that this worm couple is a plane first enveloped anchor ring worm couple.
Above-mentioned worm and gear jacking device, wherein, the screw thread of leading screw is a saw-tooth thread.
Above-mentioned worm and gear jacking device, wherein, the worm screw of worm couple is at the taper roll bearing that is arranged with a pair of face-to-face installation near an end of power source, and the other end is arranged with a cylinder self-aligning roller bearing.
After adopting technique scheme, because plane first enveloped enveloping worm transmission itself has the advantage of multiple tooth contact, so the utility model has improved transmission efficiency and bearing capacity greatly than existing cylindrical worm gearing transmission; And compare with the lift-up device of existing employing plane-generated double enveloping anchor ring worm couple, then be more prone to processing.Leading screw of the present utility model adopts saw-tooth thread, and its static load supporting capacity is bigger than stepped tooth screw thread.And worm screw is at the taper roll bearing near the sheathed a pair of face-to-face installation of an end of power source, and the other end is installed the cylinder self-aligning roller bearing, and radial-axial is comprehensive stressed better.
Description of drawings
Fig. 1 is the cross-sectional view of worm and gear jacking device of the present utility model;
Fig. 2 is the A-A sectional drawing of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is made and to be further specified.
As depicted in figs. 1 and 2, worm and gear jacking device of the present utility model comprises worm couple, power source 3 and leading screw 4.This worm couple comprises worm screw 1 and the worm gear 2 that is meshed with this worm screw 1.Power source 3 is used to drive worm screw 1 rotation; Leading screw 4 connects with worm gear 2, is used for the rotation of worm gear 2 is converted to rectilinear motion, by control power source 3 forward or reverse, can control leading screw 4 and stretch out jacking or retraction backward forward.The power source 3 general hydraulic motors that adopt.
In the utility model, worm couple adopts plane first enveloped anchor ring worm couple, and the screw thread of leading screw 4 adopts saw-tooth thread.Worm screw 1 is at the taper roll bearing 5 that is arranged with a pair of face-to-face installation near an end of power source 3, and the other end is arranged with a cylinder self-aligning roller bearing 6.Above-mentioned a pair of taper roll bearing 5 and cylinder self-aligning roller bearing 6 are installed on the casing 7.
Claims (4)
1. worm and gear jacking device, comprise worm couple, be used to drive the power source of worm screw rotation of this worm couple and the leading screw that connects with the worm gear of this worm couple, described leading screw is converted to straight line with rotation and moves, the worm screw two ends of described worm couple all are equipped with bearing, it is characterized in that described worm couple is a plane first enveloped anchor ring worm couple.
2. worm and gear jacking device as claimed in claim 1 is characterized in that, the screw thread of described leading screw is a saw-tooth thread.
3. worm and gear jacking device as claimed in claim 1 is characterized in that, the worm screw of described worm couple is at the taper roll bearing that is arranged with a pair of face-to-face installation near an end of described power source, and the other end is arranged with a cylinder self-aligning roller bearing.
4. worm and gear jacking device as claimed in claim 3 is characterized in that, described power source is a hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920213014 CN201574386U (en) | 2009-12-14 | 2009-12-14 | Worm gear jacking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920213014 CN201574386U (en) | 2009-12-14 | 2009-12-14 | Worm gear jacking machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201574386U true CN201574386U (en) | 2010-09-08 |
Family
ID=42694263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920213014 Expired - Lifetime CN201574386U (en) | 2009-12-14 | 2009-12-14 | Worm gear jacking machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201574386U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518100A (en) * | 2011-12-15 | 2012-06-27 | 吴平平 | Pile leg locking device unlocked by using deformed worm-gear and method for unlocking pile leg locking device |
| CN104421408A (en) * | 2013-09-04 | 2015-03-18 | 四川宏华石油设备有限公司 | Worm gear reducer for locking system of self-elevating drilling platform |
| CN104420454A (en) * | 2013-09-03 | 2015-03-18 | 四川宏华石油设备有限公司 | Worm structure of self-elevating drilling platform locking system |
-
2009
- 2009-12-14 CN CN 200920213014 patent/CN201574386U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518100A (en) * | 2011-12-15 | 2012-06-27 | 吴平平 | Pile leg locking device unlocked by using deformed worm-gear and method for unlocking pile leg locking device |
| CN104420454A (en) * | 2013-09-03 | 2015-03-18 | 四川宏华石油设备有限公司 | Worm structure of self-elevating drilling platform locking system |
| CN104421408A (en) * | 2013-09-04 | 2015-03-18 | 四川宏华石油设备有限公司 | Worm gear reducer for locking system of self-elevating drilling platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Nantong Zhenhua Heavy Equipment Manufacturing Co., Ltd. Assignor: Shanghai Zhenhua Heavy Industries (Group) Co., Ltd. Contract record no.: 2011320000319 Denomination of utility model: Worm gear jacking machine Granted publication date: 20100908 License type: Common License Record date: 20110318 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Zhenhua Heavy Industry Group (Nantong) Transmission Machinery Co.,Ltd. Assignor: Shanghai Zhenhua Heavy Industries (Group) Co., Ltd. Contract record no.: 2012320000328 Denomination of utility model: Worm gear jacking machine Granted publication date: 20100908 License type: Common License Record date: 20120328 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Zhenhua Heavy Industry Group (Nantong) Co., Ltd. Assignor: Shanghai Zhenhua Heavy Industries (Group) Co., Ltd. Contract record no.: 2012320000549 Denomination of utility model: Worm gear jacking machine Granted publication date: 20100908 License type: Common License Record date: 20120425 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100908 |
|
| CX01 | Expiry of patent term |