CN104692269A - Lifting mechanism for 20 small crane - Google Patents
Lifting mechanism for 20 small crane Download PDFInfo
- Publication number
- CN104692269A CN104692269A CN201410554539.1A CN201410554539A CN104692269A CN 104692269 A CN104692269 A CN 104692269A CN 201410554539 A CN201410554539 A CN 201410554539A CN 104692269 A CN104692269 A CN 104692269A
- Authority
- CN
- China
- Prior art keywords
- steel rope
- pulley
- transmission shaft
- reel
- lift system
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
Abstract
The invention discloses a lifting mechanism for a small crane. The lifting mechanism comprises a motor, a shaft coupling, a transmission shaft, a brake, a speed reducer, a winding drum, a bearing block, a smooth pulley, a steel wire rope, a pulley block and a lifting hook, wherein the output torque end of the motor is connected with the shaft coupling; the shaft coupling is connected with one end of the transmission shaft; the other end of the transmission shaft is connected with the brake; the brake is connected with the speed reducer; the steel wire rope is wound on the winding drum, is paid off during forward rotation, and is tightened during backward rotation; the diameter of the steel wire rope is required to meet the following formula (refer to the Specification), wherein Smax is the maximum static working pulling force of the steel wire rope, and C is a safety coefficient; the pulley block consists of a movable pulley and a fixed pulley; the lifting hook forms an object taking device; the diameter of a tail thread of the lifting hook is determined according to the Hoisting Machinery table; the bearing block is a sliding bearing block. According to the lifting mechanism, the power of the motor can be effectively reduced.
Description
Technical field
The present invention relates to a kind of industrial upgrading machinery, particularly relate to a kind of 20 minor crane lift systems.
Background technology
Along with the fast development of the industries such as Chinese large-sized infrastructure construction in recent years, energy industry, real estate industry, petrochemical industry and shipbuilding industry, the manufacturing development of heavy-duty machinery such as China's hoisting crane are greatly driven, with the emergence of the outstanding Heavy Machinery Enterprises such as 31 heavy industrys, middle heavy industry, Xuzhou heavy industry, Shanghai Zhenhua, DaLian Re-Work, Taiyuan heavy industry, China's Crane Industry also ranks among the row of world's hoisting crane manufacturing power just day by day.
" market demand forecast of Chinese hoisting crane manufacturing and transition and upgrade analysis report " data that prediction industrial research institute issues show: 2011, the above enterprise of Chinese hoisting crane manufacturing scale had 758; Annual enforcement sale volume 1894.11 hundred million yuan, generate profit total value 136.94 hundred million yuan, asset size is 1554.80 hundred million yuan, and profit of sales is 231.09 hundred million yuan, and wherein, the speedup of profit of sales and total profit is all more than 30%, and line operation situation is better.
Traditional minor crane generally adopts simply connected pulley such as Main classification number: what a kind of minor crane of B66C23/16 (2006.01) I adopted is exactly simply connected roller design scheme, add the moment of arm, add the power stage of whole mechanism.Therefore need that design is a kind of can reduce the moment of arm and the minor crane lift system of whole mechanism power stage is necessary
Summary of the invention
The object of the invention is to solve the problem, the minor crane lift system that a kind of structure is simple, be easy to realization is provided.
The present invention's adopted technical scheme that solves the problem is:
A kind of minor crane lift system, comprises electrical motor, coupler, transmission shaft, drg, retarder, reel, bearing seat, smooth pulleys, steel rope, assembly pulley, suspension hook composition.
Wherein electrical motor, coupler, drg, retarder, reel etc. form actuating device.Described motor output torque end connects coupler, is transferred to by nominal torque on transmission shaft; Described coupler connection for transmission axle one end; Described transmission shaft other end connecting brake, can avoid accident to occur under special circumstances; Described drg is connected with drop-gear box.
Wherein steel rope, reel, assembly pulley form wire rope roll winding apparatus.Described reel wound thereon steel rope, lengthen during rotating forward steel rope, tightens up steel rope during reversion; The diameter of described steel rope should meet
wherein S
maxfor the maximum quiet working pulling force of steel rope, C is safety factor, and the steel wire near lifting thing is connected on reel by assembly pulley; Described assembly pulley is movable pulley and fixed pulley composition.
Wherein suspension hook forms load-engaging device.
Described bearing seat adopts plain bearing housing to be used for the component of backup bearing.
The invention has the beneficial effects as follows: (1) can be output power of motor drop by half by the design of minor crane lift system; (2) by the design of minor crane lift system, the safety in operating process can be increased.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that wire rope roll of the present invention is around schematic diagram;
Fig. 3 is lifting beam with hook sketch of the present invention;
In figure: 1, electrical motor, 2, coupler, 3, transmission shaft, 4, drg, 5, retarder, 6, reel, 7, bearing seat, 8, smooth pulleys, 9, steel rope, 10, assembly pulley, 11, suspension hook.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of minor crane lift system of the present invention, comprises electrical motor (1), coupler (2), transmission shaft (3), drg (4), retarder (5), reel (6), bearing seat (7), smooth pulleys (8), steel rope (9), assembly pulley (10), suspension hook composition (11).
Wherein electrical motor (1), coupler (2), drg (4), retarder (5), reel (6) etc. form actuating device.Described electrical motor (1) output torque end connects coupler (2), is transferred to by nominal torque on transmission shaft (3); Described coupler (2) transmission shaft (3) one end; Described transmission shaft (3) other end connecting brake (4), can avoid accident to occur under special circumstances; Described drg (3) is connected with drop-gear box (5).
Wherein steel rope (9), reel (6), assembly pulley (10) form steel rope (9) wind2.Described reel (6) wound thereon steel rope (9), lengthen during rotating forward steel rope (9), tightens up steel rope (9) during reversion; The diameter of described steel rope (9) should meet
wherein S
maxfor the maximum quiet working pulling force of steel rope (9), C is safety factor, and the steel wire near lifting thing is connected on reel (6) by assembly pulley (10); Described assembly pulley (10) is movable pulley and fixed pulley composition.
Wherein suspension hook (11) forms load-engaging device.The determination of the tailing screw flight diameter of described suspension hook (11) is determined according to " elevator machinery " table.
Described bearing seat (7) adopts plain bearing housing to be used for the component of backup bearing.
During work, electrical motor sends moment to transmission shaft by coupler, and electrical motor high speed rotating out to become through retarder and slowly runs by transmission shaft, needs to slam retarder, make start and stop more steady when steel rope start and stop.Steel rope on reel hooks hook by its end of assembly pulley, and after the thing to be lifted in suspension hook is stable, band lifting thing rises by reel reversion.
More than show and describe groundwork of the present invention, principal character and advantage.The technical personnel of the industry should be understood; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. a minor crane lift system, comprises electrical motor, coupler, transmission shaft, drg, retarder, reel, bearing seat, smooth pulleys, steel rope, assembly pulley, suspension hook composition.
2. a kind of minor crane lift system according to claim 1, is characterized in that: wherein electrical motor, coupler, drg, retarder, reel etc. form actuating device.Described motor output torque end connects coupler; Described coupler connection for transmission axle one end; Described transmission shaft other end connecting brake; Described drg is connected with drop-gear box.
3. a kind of minor crane lift system according to claim 1, is characterized in that: wherein steel rope, reel, assembly pulley form wire rope roll winding apparatus.Described reel wound thereon steel rope, lengthen during rotating forward steel rope, tightens up steel rope during reversion; The diameter of described steel rope should meet
wherein S
maxfor the maximum quiet working pulling force of steel rope, C is safety factor; Described assembly pulley is movable pulley and fixed pulley composition.
4. a kind of minor crane lift system according to claim 1, is characterized in that: wherein suspension hook forms load-engaging device.
5. a kind of minor crane lift system according to claim 1, is characterized in that: described bearing seat adopts plain bearing housing to be used for the component of backup bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410554539.1A CN104692269A (en) | 2014-10-09 | 2014-10-09 | Lifting mechanism for 20 small crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410554539.1A CN104692269A (en) | 2014-10-09 | 2014-10-09 | Lifting mechanism for 20 small crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104692269A true CN104692269A (en) | 2015-06-10 |
Family
ID=53339898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410554539.1A Pending CN104692269A (en) | 2014-10-09 | 2014-10-09 | Lifting mechanism for 20 small crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104692269A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106081988A (en) * | 2016-07-21 | 2016-11-09 | 无锡派乐科技有限公司 | The brakes of reel assemblies |
| CN106429810A (en) * | 2016-11-24 | 2017-02-22 | 芜湖新兴铸管有限责任公司 | Electric lifting tool |
| CN108519179A (en) * | 2018-03-29 | 2018-09-11 | 江南大学 | A kind of measuring device and method of the practical peak torque of motor |
| CN113682999A (en) * | 2021-08-01 | 2021-11-23 | 北京工业大学 | Upper limb pulley traction weight motor torque lifting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201587824U (en) * | 2009-12-31 | 2010-09-22 | 上海科大重工集团有限公司 | Metallurgy bridge-type crane hoisting mechanism |
| CN101920908A (en) * | 2010-08-27 | 2010-12-22 | 山起重型机械股份公司 | Crane hoisting mechanism |
| US20110174540A1 (en) * | 2008-07-30 | 2011-07-21 | DRILLMEC S. p. A. | Draw-works for maneuvering of drilling devices |
| CN102556869A (en) * | 2011-12-30 | 2012-07-11 | 大连华锐重工集团股份有限公司 | Mechanism for lifting two rotary drums |
| CN103723649A (en) * | 2013-12-18 | 2014-04-16 | 苏州中州安勃起重有限公司 | Electric hoist |
-
2014
- 2014-10-09 CN CN201410554539.1A patent/CN104692269A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110174540A1 (en) * | 2008-07-30 | 2011-07-21 | DRILLMEC S. p. A. | Draw-works for maneuvering of drilling devices |
| CN201587824U (en) * | 2009-12-31 | 2010-09-22 | 上海科大重工集团有限公司 | Metallurgy bridge-type crane hoisting mechanism |
| CN101920908A (en) * | 2010-08-27 | 2010-12-22 | 山起重型机械股份公司 | Crane hoisting mechanism |
| CN102556869A (en) * | 2011-12-30 | 2012-07-11 | 大连华锐重工集团股份有限公司 | Mechanism for lifting two rotary drums |
| CN103723649A (en) * | 2013-12-18 | 2014-04-16 | 苏州中州安勃起重有限公司 | Electric hoist |
Non-Patent Citations (1)
| Title |
|---|
| 成大先: "《机械设计手册 第五版》", 30 April 2008, 化学工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106081988A (en) * | 2016-07-21 | 2016-11-09 | 无锡派乐科技有限公司 | The brakes of reel assemblies |
| CN106429810A (en) * | 2016-11-24 | 2017-02-22 | 芜湖新兴铸管有限责任公司 | Electric lifting tool |
| CN108519179A (en) * | 2018-03-29 | 2018-09-11 | 江南大学 | A kind of measuring device and method of the practical peak torque of motor |
| CN108519179B (en) * | 2018-03-29 | 2020-07-03 | 江南大学 | Method for measuring actual maximum torque of motor |
| CN113682999A (en) * | 2021-08-01 | 2021-11-23 | 北京工业大学 | Upper limb pulley traction weight motor torque lifting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150610 |
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| RJ01 | Rejection of invention patent application after publication |