CN202238929U - Speed-adjustable transmission gear box device - Google Patents
Speed-adjustable transmission gear box device Download PDFInfo
- Publication number
- CN202238929U CN202238929U CN2011203228295U CN201120322829U CN202238929U CN 202238929 U CN202238929 U CN 202238929U CN 2011203228295 U CN2011203228295 U CN 2011203228295U CN 201120322829 U CN201120322829 U CN 201120322829U CN 202238929 U CN202238929 U CN 202238929U
- Authority
- CN
- China
- Prior art keywords
- speed
- hydraulic cylinder
- speed shaft
- gear
- gear box
- 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 - Lifetime
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Abstract
The utility model relates to a speed-adjustable transmission gear box device, which is an assorted device for rolling slabs in a rough production line and a fine production line of thick slabs in steel smelting industry. For the speed-adjustable transmission gear box device, high-speed shaft teeth and a low-speed shaft are arranged in a gear box body; a high-speed shaft gear is arranged on the high-speed shaft teeth; a low-speed shifting gear I and a low-speed shifting gear II are arranged on the low-speed shaft; an outer borrowing wheel, an inner borrowing wheel and a special shifting fork for the shifting gears are sleeved on the low-speed shaft; a hydraulic cylinder base is arranged on the side surface of the gear box body; a hydraulic cylinder is mounted on the hydraulic cylinder base; and the hydraulic cylinder is connected with the special fork of the shifting gears through a connecting rod of the hydraulic cylinder. When speed adjusting needs to be carried out, the connecting rod of the hydraulic cylinder is used for driving the special fork for the shifting gears to further drive the borrow wheels, and the high-speed shaft teeth or the low-speed shaft are/is started to run, so as to obtain different rotation speeds, therefore, one gear box processes two speed ratios, the requirement on different rolling thicknesses of the slabs is met, the operation of replacing the gear box is not needed, the service life of relevant equipment for rolling steel wires can be prolonged, and the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of smelting iron and steel industry that is used for, the supporting gear box device of using of thick, smart production line slab rolling of heavy slab.
Background technology
In the existing domestic and international smelting iron and steel industry, thick, finishing mill transmission system supporting uni-drive gear box unit speed reducing ratio immobilize, can not speed governing because rolled slab thickness is several kinds of fixing.When market has different order to require to rolling thickness of slab, just need to change the corresponding gear-box of answering speed ratio of transmission, cost of idleness and shutdown replacing time influence the performance of enterprises.Do not utilize former machine speed will reduce greatly than its production efficiency of rolled slab if do not change, influence the production output of steel mill, relevant device does not match the service life of meeting reduction equipment in addition.Order the gear-box complete machine spare unit of different speed ratios.
Summary of the invention
In order to solve above-mentioned existing problems, the utility model provides a kind of transmission gear means of governing speed as required, and this device is applicable to the adjustable speed travelling gear case apparatus of the thickness of producing different rolled plates.
The purpose of the utility model realizes through following technical scheme: adjustable speed travelling gear case apparatus; It is characterized in that: in gear housing, be provided with high speed shaft tooth, slow-speed shaft; On the high speed shaft tooth, be provided with the high speed shaft gear; On slow-speed shaft, be provided with low speed power shift gear I, low speed power shift gear II, suit wheel for public use, interior wheel and the special-purpose shift fork of power shift gear borrowed are provided with hydraulic cylinder base in the gear-box side on slow-speed shaft; Hydraulic cylinder is installed on the hydraulic cylinder base, and hydraulic cylinder is connected through the special-purpose shift fork of hydraulic cylinder connecting rod and power shift gear.
The beneficial effect of the utility model: because high speed shaft tooth, slow-speed shaft are set in gear-box; Drive the special-purpose shift fork of power shift gear through the hydraulic cylinder connecting rod when needing speed governing and drive, start the running of high speed shaft tooth or slow-speed shaft, obtain different rotating speed by means of wheel; Make the separate unit gear-box possess two kinds of speed ratios of height; The gearratio adjustable speed changes and can satisfy different rolled slab thickness requirements, need not to change gear-box, can prolong the steel rolling line relevant device service life, enhance productivity.Involute teeth portion pressure angle between low speed power shift gear and the high speed shaft gear is 25 °, has increased the transverse tooth thickness of pitch circle and the thickness of tooth root portion and has made mechanical properties strength improve 15%.The utility model is practical, effectively improves service life thick, finishing mill, reduces maintenance cost, the maintaining expense of iron and steel enterprise.
Description of drawings
Fig. 1 is the front view of adjustable speed travelling gear case apparatus.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the F-F profile of Fig. 1.
The specific embodiment
Adjustable speed travelling gear case apparatus; High speed shaft tooth 1 is installed in gear-box 11; Slow-speed shaft 8 is installed high speed shaft gear 9 on high speed shaft tooth 1, low speed power shift gear I 4, low speed power shift gear II 7 are installed on slow-speed shaft 8; Involute teeth portion pressure angle between low speed power shift gear I 4 and the high speed shaft tooth 1 is 25 °, and the involute teeth portion pressure angle between low speed power shift gear II 7 and the high speed shaft gear 9 is 25 °.Suit public use wheel 12, interior wheel 2 and the special-purpose shift fork 3 of power shift gear borrowed are provided with hydraulic cylinder base 10 in the side of gear-box 11 on slow-speed shaft 8, installation hydraulic cylinder 5 on the hydraulic cylinder base 10, and hydraulic cylinder 5 is connected through hydraulic cylinder connecting rod 6 and the special-purpose shift fork 3 of power shift gear.
Claims (1)
1. adjustable speed travelling gear case apparatus; It is characterized in that: in gear housing, be provided with high speed shaft tooth, slow-speed shaft, on the high speed shaft tooth, be provided with the high speed shaft gear, on slow-speed shaft, be provided with low speed power shift gear I, low speed power shift gear II; Suit wheel for public use, interior wheel and the special-purpose shift fork of power shift gear borrowed on slow-speed shaft; Be provided with hydraulic cylinder base in the gear-box side, hydraulic cylinder is installed on the hydraulic cylinder base, hydraulic cylinder is connected through the special-purpose shift fork of hydraulic cylinder connecting rod and power shift gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203228295U CN202238929U (en) | 2011-08-31 | 2011-08-31 | Speed-adjustable transmission gear box device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203228295U CN202238929U (en) | 2011-08-31 | 2011-08-31 | Speed-adjustable transmission gear box device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202238929U true CN202238929U (en) | 2012-05-30 |
Family
ID=46100232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203228295U Expired - Lifetime CN202238929U (en) | 2011-08-31 | 2011-08-31 | Speed-adjustable transmission gear box device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202238929U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357535A (en) * | 2011-08-31 | 2012-02-22 | 沈阳乾鼎机械制造有限公司 | Adjustable speed transmission gearbox device |
| WO2018227778A1 (en) * | 2017-06-12 | 2018-12-20 | 南通国盛智能科技集团股份有限公司 | Gearbox shifting mechanism |
-
2011
- 2011-08-31 CN CN2011203228295U patent/CN202238929U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357535A (en) * | 2011-08-31 | 2012-02-22 | 沈阳乾鼎机械制造有限公司 | Adjustable speed transmission gearbox device |
| WO2018227778A1 (en) * | 2017-06-12 | 2018-12-20 | 南通国盛智能科技集团股份有限公司 | Gearbox shifting mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |