CN2295731Y - Worm jack - Google Patents
Worm jack Download PDFInfo
- Publication number
- CN2295731Y CN2295731Y CN 97215431 CN97215431U CN2295731Y CN 2295731 Y CN2295731 Y CN 2295731Y CN 97215431 CN97215431 CN 97215431 CN 97215431 U CN97215431 U CN 97215431U CN 2295731 Y CN2295731 Y CN 2295731Y
- Authority
- CN
- China
- Prior art keywords
- screw
- worm
- ratchet wheel
- ratchet
- jacking sleeve
- 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 - Fee Related
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Abstract
The utility model belongs to a worm jack, which comprises a top cover, a lifting sleeve barrel, a screw rod, a worm wheel, a thrust bearing, an endless screw, a ratchet wheel, pusher dogs, a ratchet wheel body, a tommy bar, a base and a machine casing body. The machine casing body is arranged in the base; the lifting sleeve barrel, the worm wheel and the endless screw are arranged in the machine casing body, and the screw rod is arranged in the lifting sleeve barrel. The thrust bearing and the worm wheel are fixed on the screw rod, the ratchet wheel is arranged on the endless screw, the pusher dogs and the tommy bar are arranged in the ratchet wheel body, and the pusher dogs are engaged with the ratchet wheel. The utility model is characterized in that screw rod and the screw threads of a screw ring are double thread, and the endless screw is a three-head endless screw. The utility model has the advantages of large elevating capacity, strong bearing force of engagement, and small friction coefficient.
Description
The utility model belongs to the spiral jack.
The elevating screw of existing spiral jack is a single thread screw, and used worm screw is a single start worm, and heaviness is inconvenient, the engagement holding capacity is poor, the general hoisting capacity of load-carrying ability difference is 1 ton; Friction coefficient is big, transmitting ratio is little, lifting is slower, as increasing hoisting capacity, then will add big wire role and worm screw diameter and increase body volume.
The purpose of this utility model provides one, and volume is less, the engagement holding capacity is strong, transmitting ratio is big, the less spiral jack of friction coefficient.
The utility model mainly is to take the screw mandrel of double-threaded screw and the worm screw of bull number to reach the purpose of this utility model.
This spiral jack comprises top cover, jacking sleeve, screw mandrel, worm gear, thrust baring, worm screw, ratchet, pusher dog, ratchet wheel body, moving rod, base, engine housing, engine housing is installed in base, jacking sleeve, worm gear, worm screw is installed in the engine housing, top cover is fastened on the jacking sleeve top, screw mandrel is installed in the jacking sleeve by the volution that is fastened on the jacking sleeve lower end, thrust baring is fastened on the screw mandrel lower end, worm gear presses thrust baring and is installed in screw mandrel on thrust baring, thrust baring is installed in base, worm and wheel is meshed, ratchet is installed in worm screw, ratchet wheel body is installed in engine housing, pusher dog and moving rod are installed in ratchet wheel body, and pusher dog is meshed with ratchet, it is characterized in that: the screw thread of said screw mandrel and volution is a double-threaded screw; Said worm screw is 3 worm screws.
Above-mentioned spiral jack is characterized in that: the lead angle of worm screw is 16 °-18 °.
Because the utility model is taked said structure, enlarged the engagement area of contact, improved that engagement holding capacity, transmitting ratio are big, rising or falling speed is fast, friction coefficient is less, friction coefficient and contact stress value between conjugate tooth profiles have particularly been reduced, compare with the spiral jack of oad with existing, hoisting capacity doubles, and specific volume is less mutually with existing spiral jack with hoisting capacity; Hoisting capacity is bigger, and hoisting capacity can reach 10 tons.
Detailed structure of the present utility model is provided by embodiment and accompanying drawing thereof.
Fig. 1 is the cutaway view along the screw mandrel line of centers of this spiral jack.
Fig. 2 is the local amplification view that volution is installed in screw mandrel.
Fig. 3 is the partial enlarged drawing of worm screw.
Among the above-mentioned figure:
1, top cover 2, tightening screw 3, key
4, screw mandrel 5, jacking sleeve 6, engine housing
7, volution 8, worm gear 9, key
10, thrust baring 11, base 12, worm screw
13, ratchet 14, sour jujube body 15, helical compression spring
16, pusher dog 17, moving rod 18, square thread
19, worm tooth γ lead angle
The structure of the utility model embodiment is seen Fig. 1, it comprises top cover 1, jacking sleeve 5, screw mandrel 4, worm gear 8, thrust baring 10, worm screw 12, ratchet 13, pusher dog 16, ratchet wheel body 14, moving rod 17, base 11, engine housing 6,6 ends of engine housing, be installed in base 11 by screw thread, jacking sleeve 5, worm gear 8, worm screw 12 is installed in the engine housing 6, locate by key 3 between jacking sleeve 5 and the engine housing 6, top cover 1 is fastened on the top of jacking sleeve 5, screw mandrel 4 is installed in the jacking sleeve 5 by the volution 7 that is fastened on jacking sleeve 5 lower ends, thrust baring 10 is fastened on screw mandrel 4 lower ends, worm gear 8 presses thrust baring 10 and is installed in screw mandrel and fastening by key 9 on thrust baring 10, thrust baring 10 is installed in base 11, worm screw 12 is meshed with worm gear 8, ratchet 13 is installed in worm screw 12, ratchet wheel body 14 is installed in engine housing 6, pusher dog 16 is installed in ratchet wheel body 14 with moving rod 17, and pusher dog 16 is meshed with ratchet 13, it is characterized in that: the screw thread of said screw mandrel 4 and volution 7 is that double-threaded screw is referring to Fig. 2; Said worm screw be 3 worm screws referring to Fig. 3, the lead angle γ of present embodiment is 16 °-18 °.
Claims (2)
1, a spiral jack, it comprises top cover, jacking sleeve, screw mandrel, worm gear, thrust baring, worm screw, ratchet, pusher dog, ratchet wheel body, moving rod, base, engine housing, engine housing is installed in base, jacking sleeve, worm gear, worm screw is installed in the engine housing, top cover is fastened on the jacking sleeve top, screw mandrel is installed in the jacking sleeve by the volution that is fastened on the jacking sleeve lower end, thrust baring is fastened on the screw mandrel lower end, the spiral shell wheel presses thrust baring and is installed in screw mandrel on thrust baring, thrust baring is installed in base, worm and wheel is meshed, ratchet is installed in worm screw, and ratchet wheel body is installed in engine housing, and pusher dog and moving rod are installed in ratchet wheel body, pusher dog is meshed with ratchet, it is characterized in that: the screw thread of said screw mandrel and volution is a double-threaded screw; Said worm screw is 3 worm screws.
2, spiral jack according to claim 1 is characterized in that: the lead angle of worm screw is 16 °-18 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215431 CN2295731Y (en) | 1997-04-24 | 1997-04-24 | Worm jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215431 CN2295731Y (en) | 1997-04-24 | 1997-04-24 | Worm jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2295731Y true CN2295731Y (en) | 1998-10-28 |
Family
ID=33932593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97215431 Expired - Fee Related CN2295731Y (en) | 1997-04-24 | 1997-04-24 | Worm jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2295731Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863428A (en) * | 2010-05-22 | 2010-10-20 | 东方电气集团东方汽轮机有限公司 | Tool special for assembling gas turbine pull rod-type rotor disc and using method thereof |
| CN102168461A (en) * | 2011-03-19 | 2011-08-31 | 欧路莎股份有限公司 | Jacking device for partitioning shower room |
| CN103228852A (en) * | 2010-05-05 | 2013-07-31 | 奥斯蒂尔公司 | Moveable and demountable wall panel system for butt-lazed wall panels |
| CN104528577A (en) * | 2014-12-08 | 2015-04-22 | 赵宽学 | Spiral top extension device |
| CN104736787A (en) * | 2012-08-24 | 2015-06-24 | 奥斯蒂尔公司 | Modular wall system |
| CN103228852B (en) * | 2010-05-05 | 2016-12-14 | 奥斯蒂尔公司 | For docking may move and disassembled board wall system of glaze facing-wall board |
| CN106429940A (en) * | 2016-08-30 | 2017-02-22 | 江苏泰隆减速机股份有限公司 | Speed reducer for opening locking device through pedal |
| CN112247063A (en) * | 2020-09-30 | 2021-01-22 | 湖南润华新材料有限公司 | Forging device for manufacturing valve seat for fire hydrant and using method thereof |
-
1997
- 1997-04-24 CN CN 97215431 patent/CN2295731Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10309102B2 (en) | 2010-05-05 | 2019-06-04 | Allsteel, Inc. | Modular wall system |
| US9206600B2 (en) | 2010-05-05 | 2015-12-08 | Allsteel Inc. | Modular wall system |
| US11725382B2 (en) | 2010-05-05 | 2023-08-15 | Allsteel Inc. | Modular wall system |
| CN103228852A (en) * | 2010-05-05 | 2013-07-31 | 奥斯蒂尔公司 | Moveable and demountable wall panel system for butt-lazed wall panels |
| CN103228852B (en) * | 2010-05-05 | 2016-12-14 | 奥斯蒂尔公司 | For docking may move and disassembled board wall system of glaze facing-wall board |
| US10927545B2 (en) | 2010-05-05 | 2021-02-23 | Allsteel Inc. | Modular wall system |
| US9765518B2 (en) | 2010-05-05 | 2017-09-19 | Allsteel Inc. | Modular wall system |
| US9284729B2 (en) | 2010-05-05 | 2016-03-15 | Allsteel Inc. | Modular wall system |
| CN101863428A (en) * | 2010-05-22 | 2010-10-20 | 东方电气集团东方汽轮机有限公司 | Tool special for assembling gas turbine pull rod-type rotor disc and using method thereof |
| CN101863428B (en) * | 2010-05-22 | 2013-05-29 | 东方电气集团东方汽轮机有限公司 | Tool special for assembling gas turbine pull rod-type rotor disc and using method thereof |
| CN102168461A (en) * | 2011-03-19 | 2011-08-31 | 欧路莎股份有限公司 | Jacking device for partitioning shower room |
| CN104736787A (en) * | 2012-08-24 | 2015-06-24 | 奥斯蒂尔公司 | Modular wall system |
| CN104528577A (en) * | 2014-12-08 | 2015-04-22 | 赵宽学 | Spiral top extension device |
| CN104528577B (en) * | 2014-12-08 | 2019-03-26 | 赵宽学 | Spiral top stretches device |
| CN106429940A (en) * | 2016-08-30 | 2017-02-22 | 江苏泰隆减速机股份有限公司 | Speed reducer for opening locking device through pedal |
| CN112247063A (en) * | 2020-09-30 | 2021-01-22 | 湖南润华新材料有限公司 | Forging device for manufacturing valve seat for fire hydrant and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |