CN102734398A - Speed reducer special for lifting mechanism of crane - Google Patents
Speed reducer special for lifting mechanism of crane Download PDFInfo
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- CN102734398A CN102734398A CN2012102099506A CN201210209950A CN102734398A CN 102734398 A CN102734398 A CN 102734398A CN 2012102099506 A CN2012102099506 A CN 2012102099506A CN 201210209950 A CN201210209950 A CN 201210209950A CN 102734398 A CN102734398 A CN 102734398A
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Abstract
The invention discloses a speed reducer special for a lifting mechanism of a crane. The speed reducer comprises a box, wherein an input shaft, an output shaft, a middle shaft, a middle gear and a final gear are arranged in the box; the middle gear is arranged on the middle shaft; the final gear is arranged on the output shaft and meshed with the middle shaft; a variable-speed shaft and a shifting handle are arranged in the box; the variable-speed shaft is connected with a dual gear through a spline in a sliding mode; a low-speed limit is arranged on the variable-speed shaft; a low variable-speed gear and a high variable-speed gear are arranged on the input shaft; a high-speed limit is arranged on the input shaft; the shifting handle is connected with a shifting shaft; the shifting shaft is connected with one end of a shifting fork; and the other end of the shifting fork is connected with the dual gear. The speed reducer is compact in structure, the layout space of the crane is saved, a transitional link is eliminated, the running reliability of the whole crane is improved, and the generality is relatively good.
Description
Technical field
The present invention relates to a kind of speed reducer, relate in particular to a kind of speed reducer that is exclusively used in the lifting mechanism of hoist.
Background technique
At present, the middle-size and small-size stationary crane that uses on the harbour adopts lifting pulley compensation, rope luffing mostly; Can adopt suspension hook to carry out big part loading and unloading, can adopt grab bucket to carry out the bulk-handling operation again, when loading and unloading different goods; From the consideration of security and various aspects, during lifting, suspension hook or grab bucket must be gone up and down with different speed; The way that generally adopts now is to adopt the master gear speed reducer; Between motor and gear reduction unit, increase a cover speed change gear, a cover hitch bar, with the requirement that realizes that high and low speed changes, this form not only increased the scope of layout, but also owing to increased several places and connect; Complete machine layout to hoist affects greatly, the reliability that the deadweight when making crane loading is big, reduced equipment operation.
Summary of the invention
The object of the present invention is to provide a kind of crane hoisting mechanism special reduction gear; It has the advantages that to save the space, be convenient to hoist complete machine layout and increase the speed reducer operational reliability, to solve the problem that the speed reducer that is used for crane hoisting mechanism in the existing technology exists.
For reaching this purpose, the present invention adopts following technological scheme:
A kind of crane hoisting mechanism special reduction gear, it comprises casing, and input shaft, output shaft, jack shaft, intermediate gear and final stage gear are set in the said casing; Said input shaft, output shaft and jack shaft are rotating to be arranged in the casing, and said intermediate gear is installed on the jack shaft, and said final stage gear is installed on the output shaft and with jack shaft and meshes; Wherein, variable-speed shaft and shift handle are installed also in the said casing, said variable-speed shaft is through the spline duplicate gear that is slidingly connected; And it is spacing that low speed is installed on the said variable-speed shaft; Low speed change gear and high speed change gear are installed on the said input shaft, and the installation high speed is spacing on the said input shaft, said shift handle connects the gearshift axle; One end of said gearshift axle connection shift fork, the other end of said shift fork connects duplicate gear.
Especially, said variable-speed shaft is installed on the casing through the variable-speed shaft cone bearing.
Especially, said input shaft is installed on the casing through the end ball bearing.
Especially, said jack shaft and output shaft are installed on the casing through jack shaft cone bearing and output shaft cone bearing respectively.
Beneficial effect of the present invention does, compared with prior art said crane hoisting mechanism special reduction gear compact overall structure has been practiced thrift the arrangement space of hoist, has reduced the middle transition link, improves the complete machine reliability of operation, and versatility is better.
Description of drawings
Fig. 1 is the plan view of the crane hoisting mechanism special reduction gear that provides of the specific embodiment of the invention 1;
Fig. 2 is the sectional drawing of the crane hoisting mechanism special reduction gear that provides of the specific embodiment of the invention 1.
Embodiment
Further specify technological scheme of the present invention below in conjunction with accompanying drawing and through embodiment.
See also illustrated in figures 1 and 2ly, Fig. 1 is the plan view of the crane hoisting mechanism special reduction gear that provides of the specific embodiment of the invention 1; Fig. 2 is the sectional drawing of the crane hoisting mechanism special reduction gear that provides of the specific embodiment of the invention 1.
In the present embodiment; A kind of crane hoisting mechanism special reduction gear comprises casing 1, and input shaft 2, output shaft 3, jack shaft 4, intermediate gear 5 and final stage gear 6 are set in the said casing 1, and said input shaft 2 is installed on the casing 1 through end ball bearing 7; Said jack shaft 4 is installed on the casing 1 through jack shaft cone bearing 8 and output shaft cone bearing 9 respectively with output shaft 3; Said intermediate gear 5 is installed on the jack shaft 4, and said final stage gear 6 is installed on the output shaft 3 and with jack shaft 4 and meshes, and through variable-speed shaft cone bearing 13 variable-speed shaft 10 is installed also in the said casing 1; Said variable-speed shaft 10 is through the spline duplicate gear 11 that is slidingly connected; And it is spacing 12 that low speed is installed on the said variable-speed shaft 10, low speed change gear 14 and high speed change gear 15 is installed on the said input shaft 2, and high speed spacing 16 is installed on the said input shaft 2.
On the said casing 1 shift handle 17 is set, said shift handle 17 connects gearshift axle 18, and said gearshift axle 18 connects an end of shift fork, and the other end of said shift fork connects duplicate gear 11.
During work, when shift handle 17 mediates neutral, when 17 groups of shift handles are downward; Be bottom gear, at this moment, motor is through input shaft 2 input power; Duplicate gear 11 and low speed change gear 14 engagements drive variable-speed shaft 10, intermediate gear 5, final stage gear 6, output shaft 3 outputting powers by duplicate gear 11, when 17 groups of shift handles make progress; Be top gear, at this moment, motor is through input shaft 2 input power; Duplicate gear 11 and high speed change gear 15 engagements drive variable-speed shaft 10, intermediate gear 5, final stage gear 6, output shaft 3 outputting powers by duplicate gear 11.
Above embodiment has just set forth basic principle of the present invention and characteristic; The present invention is not limited by above-mentioned example; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various variations and change, and these variations and change all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (4)
1. crane hoisting mechanism special reduction gear, it comprises casing, and input shaft, output shaft, jack shaft, intermediate gear and final stage gear are set in the said casing; Said input shaft, output shaft and jack shaft are rotating to be arranged in the casing, and said intermediate gear is installed on the jack shaft, and said final stage gear is installed on the output shaft and with jack shaft and meshes; It is characterized in that, variable-speed shaft and shift handle also are installed in the said casing, said variable-speed shaft is through the spline duplicate gear that is slidingly connected; And it is spacing that low speed is installed on the said variable-speed shaft; Low speed change gear and high speed change gear are installed on the said input shaft, and the installation high speed is spacing on the said input shaft, said shift handle connects the gearshift axle; One end of said gearshift axle connection shift fork, the other end of said shift fork connects duplicate gear.
2. crane hoisting mechanism special reduction gear according to claim 1 is characterized in that said variable-speed shaft is installed on the casing through the variable-speed shaft cone bearing.
3. crane hoisting mechanism special reduction gear according to claim 1 is characterized in that, said input shaft is installed on the casing through the end ball bearing.
4. crane hoisting mechanism special reduction gear according to claim 1 is characterized in that, said jack shaft and output shaft are installed on the casing through jack shaft cone bearing and output shaft cone bearing respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102099506A CN102734398A (en) | 2012-06-21 | 2012-06-21 | Speed reducer special for lifting mechanism of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102099506A CN102734398A (en) | 2012-06-21 | 2012-06-21 | Speed reducer special for lifting mechanism of crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102734398A true CN102734398A (en) | 2012-10-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102099506A Pending CN102734398A (en) | 2012-06-21 | 2012-06-21 | Speed reducer special for lifting mechanism of crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102734398A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927218A (en) * | 2012-11-02 | 2013-02-13 | 无锡华联科技集团有限公司 | Pipe chamfering machine transmission case mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002080190A (en) * | 2000-09-04 | 2002-03-19 | Niigata Eng Co Ltd | Power transmitting device for driving rotary drum |
| EP1783394A1 (en) * | 2005-11-03 | 2007-05-09 | Unicum Transmission de Puissance | Safety device for a mechanical transmission by means of a blocking gearing |
| CN201183726Y (en) * | 2008-01-29 | 2009-01-21 | 潍坊新奇机电工程有限公司 | Speed variator for construction hoister |
| CN201785155U (en) * | 2010-08-27 | 2011-04-06 | 河南奔马股份有限公司 | Auxiliary winch variable-speed device for automobile crane |
| CN202091446U (en) * | 2011-05-31 | 2011-12-28 | 江苏永丰机械有限责任公司 | Speed reducer with speed shifting mechanism |
| CN202690904U (en) * | 2012-06-21 | 2013-01-23 | 无锡市协兴港口机械有限公司 | Speed reducer special for hoisting mechanism of crane |
-
2012
- 2012-06-21 CN CN2012102099506A patent/CN102734398A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002080190A (en) * | 2000-09-04 | 2002-03-19 | Niigata Eng Co Ltd | Power transmitting device for driving rotary drum |
| EP1783394A1 (en) * | 2005-11-03 | 2007-05-09 | Unicum Transmission de Puissance | Safety device for a mechanical transmission by means of a blocking gearing |
| CN201183726Y (en) * | 2008-01-29 | 2009-01-21 | 潍坊新奇机电工程有限公司 | Speed variator for construction hoister |
| CN201785155U (en) * | 2010-08-27 | 2011-04-06 | 河南奔马股份有限公司 | Auxiliary winch variable-speed device for automobile crane |
| CN202091446U (en) * | 2011-05-31 | 2011-12-28 | 江苏永丰机械有限责任公司 | Speed reducer with speed shifting mechanism |
| CN202690904U (en) * | 2012-06-21 | 2013-01-23 | 无锡市协兴港口机械有限公司 | Speed reducer special for hoisting mechanism of crane |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927218A (en) * | 2012-11-02 | 2013-02-13 | 无锡华联科技集团有限公司 | Pipe chamfering machine transmission case mechanism |
| CN102927218B (en) * | 2012-11-02 | 2015-03-18 | 无锡华联科技集团有限公司 | Pipe chamfering machine transmission case mechanism |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121017 |