CN101995334B - Loading experimental machine of winding speed reducer of crane - Google Patents
Loading experimental machine of winding speed reducer of crane Download PDFInfo
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- CN101995334B CN101995334B CN2010101862163A CN201010186216A CN101995334B CN 101995334 B CN101995334 B CN 101995334B CN 2010101862163 A CN2010101862163 A CN 2010101862163A CN 201010186216 A CN201010186216 A CN 201010186216A CN 101995334 B CN101995334 B CN 101995334B
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Abstract
The invention discloses a loading experimental machine of a winding speed reducer of a crane, which comprise a base, a power device, a loading device, a belt transmission device and a left support and a right support of a supporting roll to be tested, wherein the power device comprises a motor arranged on a motor support and shaft couplers I respectively connected with the motor and a speed reducer assembly of the roll to be tested; the loading device comprises a magnetic powder brake arranged on a brake support, loading rolls arranged on the left support and the right support of the loading roll and a torque rotation speed sensor arranged on the sensor support, and one end of the torque rotation speed sensor is connected with the magnetic powder brake through a shaft coupler II, and the other end is connected with the loading roll through a shaft coupler III; the belt transmission device comprises loading belts respectively wound on the loading roll and the roll to be tested, and a belt tension limiting device arranged right under the loading belt, wherein the tension limiting device comprises a tension wheel support, and a limiting wheel and a tension wheel arranged on the tension wheel support. The loading experimental machine has the advantages of compact structure, high reliability and good experiment effect.
Description
Technical field
The present invention relates to a kind of loading experiment machine, especially a kind of loading experiment machine that is used to simulate the crane hoisting speed reduction unit of crane operating mode.
Background technology
Reel and speed reduction unit are the vitals of crane hoisting mechanism, and its dependability can produce very big influence to the serviceability of crane, even are related to the hoist security of operation of elevator.At present; Elevator speed reduction unit to newly development or new production also lacks effective detection and judge means; The method that generally adopts is: adopt the experiment of dallying of simple and easy experiment table, roughly wherein whether the motion of each parts is flexible in understanding, judges that whether correct its assembly relation etc.; Because this experiment table can't be simulated the actual job operating mode of crane, then is difficult to pass judgment on its process and assemble quality; Want to understand its reliability, then need do the experiment of long duration.Therefore, if only testing whereby, the elevator speed reduction unit of newly developing just is applied to then cause potential potential safety hazard to hoisting operation possibly on the crane.In addition, the manufacturing enterprise that has even also exist the elevator speed reduction unit product of new production with any detection and reliability examination with regard to direct applied situation, this may influence the reliability and security of crane facility on the one hand; On the other hand, believable operating life data can not be provided for the user who adopts this speed reduction unit.
Summary of the invention
Technical matters: the objective of the invention is to overcome the deficiency in the prior art, a kind of compact conformation is provided, reliability is high, the loading experiment machine of the crane hoisting speed reduction unit that experiment effect is good.
Technical Solution: loading test machine of the present invention, comprises a base, located in the base of the power device, the loading device, belt drive means and the support paper tube to be left and right bearings; said power means comprises a motor support provided seat of the motor, respectively, and papers cylinder motor and gear assembly to be associated I couplings; loading device includes designing the brake magnetic brake on the carriage, loading roll around in the loading rack and roll located in the sensor bracket torque and speed sensor, speed sensor end torque coupling and magnetic brake after II linked to the other end of the coupling and loading roll through III associated; said belt drive means comprises respectively Chan wound on reel loaded with paper tube to be loaded above the belt, the belt load limiting device beneath a belt tensioner, tension limit device includes idler bracket, are located in the tensioner bracket limit wheel and tensioner.
Described position-limited wheel is two, lays respectively at the both sides that load belt, is equipped with on each position-limited wheel by upper and lower two and can forms around its roller that is free to slide; Described stretching pulley is one to lean at the roller that loads the belt bottom surface, its wheel shaft through the bearing sliding bearing on the stretching pulley support.
Beneficial effect: the present invention can effectively simulate the various elevators of crane hoist operating mode, fast the examination and multifactorial evaluation reel speed reduction unit assembly quality; And can efficiently accomplish the break-in of speed reduction unit, thereby the quality of the product that dispatches from the factory and the reliability and the security of truck-mounted crane elevator operation have effectively been ensured.Elevator reel and built-in wherein speed reduction unit are carried out failtests, it is carried out the examination of life-span and reliability.For the various elevators of real simulation crane hoist operating mode, fast the examination and multifactorial evaluation elevator speed reduction unit reliability laboratory facilities are provided.It is simple in structure, compact, and reliability is high, and is effective.
Description of drawings
Fig. 1 is a loading experiment machine structural front view of the present invention;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the B-B view of Fig. 1;
Fig. 4 be Fig. 1 to view.
Among the figure: the 1-base; 2-reel left support abutment; 3-treats paper tube-speed reduction unit; 4-loads belt; 5-reel right support abutment; The 6-I shaft coupling; The 7-motor; 8-motor bearing; The 9-brake support; The 10-magnetic powder brake; The 11-II shaft coupling; The 12-torque rotary speed sensor; The 13-sensor stand; The 14-III shaft coupling; 15-loads the reel right support; 16-loads reel; 17-loads the reel left socle; The 18-position-limited wheel; The 19-stretching pulley; 20-stretching pulley support.
Embodiment
Below in conjunction with accompanying drawing one embodiment of the present of invention are done further to describe:
Shown in Figure 1; The loading experiment machine comprises that mainly base 1, propulsion system, charger, belt driver and supporting treat the left and right bearing 2,5 of paper tube 3; Base 1 is welded into a rigid structural member by shaped steel and steel plate etc., and propulsion system, charger and belt driver are fixed on the base 1 by design attitude respectively.Propulsion system comprise motor 7, respectively with motor 7 with treat the I shaft coupling 6 that paper tube speed reducer assembly links, wherein motor 7 through motor bearing 8 and screw retention at base 1; Treat paper tube left support abutment 2 with treat paper tube right support abutment 5 through screw retention at base 1, treat that paper tube 3 installs on the left and right bearing 2,5 through the bearing sliding bearing; I shaft coupling 6 is for connecting an axle treating paper tube 3 interior speed reduction units and motor 7, and its left part is a splined shaft, matches with speed reduction unit internal splined hole and motor shaft respectively for the hole of band flat key groove in its right part.Charger mainly is made up of magnetic powder brake 10, torque rotary speed sensor 12, loading reel 16 and each support etc.Magnetic powder brake 10 through brake support 9 and screw retention on base 1; Torque rotary speed sensor 12 through sensor stand 13 and screw retention on base 1; Load reel 16 and pass through the bearing sliding bearing at its left and right support 17; On 15, left and right support 17,15 all passes through screw retention on base 1; Couple together through II shaft coupling 11 between magnetic powder brake 10 and the torque rotary speed sensor 12 and realize transmission of power therebetween, load between reel 16 and the torque rotary speed sensor 12 through III shaft coupling 14 and couple together realization transmission of power therebetween.Belt driver is mainly formed by loading belt 4 and tensioning stop means thereof etc.Loading belt 4 is wrapped in loading reel 16 and treats on the paper tube 3; Loading belt 4 is loading reel 16 and is treating to be provided with between the paper tube 3 the tensioning stop means; The tensioning stop means be located at load belt 4 under the position, it mainly is made up of position-limited wheel 18, stretching pulley 19, stretching pulley support 20 etc.; Position-limited wheel has two, is symmetrical set, and lays respectively at the left and right sides that loads belt 4, all is provided with on each position-limited wheel 18 by upper and lower two and can forms around its roller that is free to slide; Stretching pulley support 20 symmetries are located at the both sides that load belt 4, and through transferring pad and screw retention on base 1, stretching pulley 19 is one to lean at the roller that loads belt 4 bottom surfaces, the wheel shaft two ends of roller through the bearing sliding bearing on stretching pulley support 20.
Its course of work and principle: before starter motor 7, do not carry exciting curent, make motor 7 starting under no loads to magnetic powder brake.After treating that motor 7 starts, flow to a certain size exciting curent of magnetic powder brake 10 according to the loading needs again.The power that motor 7 is exported passes to the speed reduction unit of treating in the paper tube 3 through I shaft coupling 6, treats that paper tube 3 passes through to load belt 4 and gives loading reel 16 with transmission of power; The loading moment that loads reel 16 comes from magnetic powder brake 10; Be that the loading moment that magnetic powder brake 10 produces passes to loading reel 16 through II shaft coupling 11, torque rotary speed sensor 12, III shaft coupling 14, parameters such as braking moment size that magnetic powder brake 10 produced and rotational speed obtain through the acquired signal of torque rotary speed sensor 1.
Treat the paper tube 3 and the run-in technology of speed reduction unit wherein, according to zero load-underloading-in carry-load mode of heavy duty carries out; The size of loading moment is decided by the exciting curent that flows to magnetic powder brake 10.During no-load test, the assembly quality situation of paper tube speed reducer assembly is treated in main inspection, promptly checks its going slick property, noise size.
Treat paper tube 3 and the wherein reliability examination of speed reduction unit, can carry out accelerated test, the reliability level of the reel speed reduction unit of newly developing with quick investigation according to different load condition.
When the elasticity that loads belt is improper; Can be through increasing, subtract the pad between stretching pulley support 20 and the base 1; Change the high and low of stretching pulley 19 relative bases 1; The degree that raises up in the middle of the bottom that loads belt 4 is increased or reduce, load belt 4 and reach suitable elasticity requirement thereby make.
Claims (3)
1. the loading experiment machine of a crane hoisting speed reduction unit is characterized in that: experimental machine comprises base (1), is located at the left and right bearing (2,5) that paper tube (3) is treated in propulsion system, charger, belt driver and supporting on the base (1) respectively; Described propulsion system comprise the motor (7) that is located on the motor bearing (8), respectively with motor (7) with treat the I shaft coupling (6) that paper tube speed reducer assembly links; Charger comprises the magnetic powder brake (10) that is located on the brake support (9), be located at and load the loading reel (16) on the reel left and right sides support (17,15) and be located at the torque rotary speed sensor (12) on the sensor stand (13); Torque rotary speed sensor (12) one ends link through II shaft coupling (11) and magnetic powder brake (10), and the other end links through III shaft coupling (14) and loading reel (16); Described belt driver comprises being wrapped in respectively and loads reel (16) and treat the loading belt (4) on the paper tube (3); The below that loads belt (4) is provided with the belt tension stop means, and the tensioning stop means comprises the stretching pulley support (20) that is fixed on the base (1), is located at position-limited wheel (18) and stretching pulley (19) on the stretching pulley support (20) respectively.
2. the loading experiment machine of crane hoisting speed reduction unit according to claim 1; It is characterized in that: described position-limited wheel (18) is two; Lay respectively at the both sides that load belt (4), be equipped with on each position-limited wheel (18) by upper and lower two and can form around its roller that is free to slide.
3. the loading experiment machine of crane hoisting speed reduction unit according to claim 1 is characterized in that: described stretching pulley (19) is one to lean at the roller that loads belt (4) bottom surface, its wheel shaft two ends through the bearing sliding bearing on stretching pulley support (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101862163A CN101995334B (en) | 2010-05-28 | 2010-05-28 | Loading experimental machine of winding speed reducer of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101862163A CN101995334B (en) | 2010-05-28 | 2010-05-28 | Loading experimental machine of winding speed reducer of crane |
Publications (2)
| Publication Number | Publication Date |
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| CN101995334A CN101995334A (en) | 2011-03-30 |
| CN101995334B true CN101995334B (en) | 2012-02-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101862163A Active CN101995334B (en) | 2010-05-28 | 2010-05-28 | Loading experimental machine of winding speed reducer of crane |
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| CN (1) | CN101995334B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890904B (en) * | 2014-12-12 | 2018-04-03 | 广西大学 | A kind of servomotor testing platform load conversion control method |
| CN106441844A (en) * | 2016-09-22 | 2017-02-22 | 淮南国力液压装备有限公司 | High-speed rice transplanting machine chassis assembly running-in test stand |
| CN111579259B (en) * | 2020-04-02 | 2023-06-27 | 武汉船用机械有限责任公司 | Loading test method of hoisting equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3722267A (en) * | 1971-11-03 | 1973-03-27 | Harnischfeger Corp | Hoist-testing apparatus and control system therefor |
| US4677579A (en) * | 1985-09-25 | 1987-06-30 | Becor Western Inc. | Suspended load measurement system |
| JP2011504866A (en) * | 2007-11-26 | 2011-02-17 | セーフワークス エルエルシー | Power sensor |
| CN201688968U (en) * | 2010-05-28 | 2010-12-29 | 徐州圣邦机械有限公司 | Loading test machine of crane hoist reducer |
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| CN101995334A (en) | 2011-03-30 |
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