CN204096984U - Lifting mechanism, quenching crane and gate hoist - Google Patents
Lifting mechanism, quenching crane and gate hoist Download PDFInfo
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- CN204096984U CN204096984U CN201420503052.6U CN201420503052U CN204096984U CN 204096984 U CN204096984 U CN 204096984U CN 201420503052 U CN201420503052 U CN 201420503052U CN 204096984 U CN204096984 U CN 204096984U
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- lifting mechanism
- retarder
- drg
- governor
- primary mover
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Abstract
The utility model discloses a kind of lifting mechanism, it comprises hoisting mechanism, former dynamic component, retarder, governor and drg, and input shaft and the output shaft of described retarder be arranged in parallel, and the reel of described hoisting mechanism is coaxially connected with the output shaft of retarder; Input shaft one end of described retarder is connected with former dynamic component, and the other end is connected with governor, and described drg is arranged between retarder and former dynamic component.When workpiece declines, power resources are in the gravity of workpiece self, and compared with prior art, the structure of this lifting mechanism is simpler, and the power of former dynamic component can be less, and transmission device is more simple and reliable; Therefore, the cost of this lifting mechanism is cheaper, more compact structure, reliability are higher.On this basis, the utility model also proposes a kind of quenching crane, the gate hoist with this lifting mechanism.
Description
Technical field
The utility model relates to object lifting technology, is specifically related to a kind of lifting mechanism and has quenching crane, the gate hoist of this lifting mechanism.
Background technology
Quenching crane is a kind of handling mechanical workpieces and then the specialized equipment completing quenching technical process, for ensureing the quality of quenching technical, usually requires that quenching crane possesses following functions:
1) decline fast: according to quenching technical requirement, red-hot workpiece needs in rapid dip quench pond, even to ensure the upper and lower metallographic structure of workpiece, and avoid pasta on fire, therefore quenching crane should be able to decline fast, its descending speed is usually compared with the large manyfold of lifting speed, and even, the maximum falling speed of some quenching crane can reach 80m/min.
2) braking accurately, steadily and rapidly: because the quenching bath degree of depth is limited, when behind the complete dip quench pond of workpiece, needs to stop in quenching bath exactly, reposefully, rapidly, usually, requires that stopping distance is no more than 500mm.
In order to make quenching crane possess above two kinds of functions, usually adopting variable-frequency motor to drive the lifting mechanism of quenching crane, being regulated the rising or falling speed of quenching crane by the rotating speed of frequency-changing control system control variable-frequency motor; But the frequency converter that this type of drive needs the variable-frequency motor of relatively high power and adapts to it, causes cost higher.Certainly, also can be driven the lifting mechanism of quenching crane in conjunction with the mode of extraordinary retarder in conjunction with 2K-H type planetary reduction gear or swing motor by common electric machine, but there is the problem that is excessive, high expensive that takes up space in these two kinds of drive configurations.
Utility model content
In view of this, the utility model proposes the higher and lifting mechanism that cost is cheaper of a kind of more compact structure, reliability.On this basis, the utility model also proposes a kind of quenching crane and the gate hoist with this lifting mechanism.
As first aspect, the utility model proposes a kind of lifting mechanism, it comprises hoisting mechanism, former dynamic component, retarder, governor and drg, and input shaft and the output shaft of described retarder be arranged in parallel, and the reel of described hoisting mechanism is coaxially connected with the output shaft of retarder; Input shaft one end of described retarder is connected with former dynamic component, and the other end is connected with governor, and described drg is arranged between retarder and former dynamic component.
In preferably technical scheme, described reel and former dynamic component are arranged at the same side of retarder.
In preferably technical scheme, described former dynamic component is variable-frequency motor or phase-wound rotor motor.
In preferably technical scheme, described governor is centrifugal speed governor.
In preferably technical scheme, described retarder is Double shaft-extension cylinder gear speed reducer.
In preferably technical scheme, described drg is provided with urgent brake-releasing gear.
In preferably technical scheme, described drg is hydraulic pressure block brake or hydraulic brake.
The principle of work of the lifting mechanism that the utility model proposes is: during lifting workpieces, former dynamic component normally works (drg is in open mode) by rated speed of rotation, the passive operation of governor, but be in off working state, when workpiece is promoted to predetermined altitude, brake operation, former dynamic component stops, and workpiece stops moving up and down; Above workpiece movable to quenching bath, during decline workpiece, open drg, under gravity, workpiece accelerates to move to quenching bath, when speed reaches predetermined value, governor provides resistance to the input shaft of retarder, stop workpiece continue accelerate and within the moving velocity of workpiece is limited in certain limit; When the complete dip quench pond of workpiece, drg starts braking.
Can be known by above-mentioned principle of work, in workpiece decline process, power resources in the deadweight of workpiece itself, and by the adjustment of governor, can ensure that workpiece declines fast and is unlikely to hypervelocity, so for realizing exactly, reposefully braking basis is provided; Compared with prior art, the structure of this lifting mechanism is simpler, and the power of former dynamic component can be less, and transmission device is more simple and reliable; Therefore, the cost of this lifting mechanism is cheaper, more compact structure, reliability are higher.
As second aspect, the utility model also proposes a kind of quenching crane, it comprises guide rail, trolley body, suspender and any one lifting mechanism above-mentioned, described trolley body is arranged on described guide rail movably, described lifting mechanism is arranged on described trolley body, and described suspender is connected with the drag-line of hoisting mechanism.
Compared with prior art, by adopting the lifting mechanism of said structure, the quenching crane cost that the utility model proposes is lower, more compact structure, and reliability is higher.
As the third aspect, the utility model also proposes a kind of gate hoist, and it comprises the lifting mechanism of gate and above-mentioned any one, and described gate is connected with the drag-line of hoisting mechanism.
In like manner, compared with prior art, by adopting the lifting mechanism of said structure, this gate hoist cost is lower, more compact structure, and reliability is higher.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the part-structure schematic diagram of the lifting mechanism that the utility model proposes.
Description of reference numerals:
1-governor, 2-retarder, 3-drg, 4-reel, 5-primary mover
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As shown in Figure 1, the lifting mechanism that the utility model specific embodiment proposes comprises hoisting mechanism, and (hoisting mechanism comprises reel 4 and drag-line, illustrate only reel 4 in figure), primary mover 5, retarder 2, governor 1 and drg 3, input shaft and the output shaft of retarder 2 be arranged in parallel, and the reel 4 of hoisting mechanism is coaxially connected with the output shaft of retarder 2; Input shaft one end of retarder 2 is connected with primary mover 5, and the other end is connected with governor 1, and drg 3 is arranged between retarder 2 and primary mover 5.
In order to more clearly demonstrate the principle of work of lifting mechanism, set forth for quenching crane below.Except lifting mechanism, usual quenching crane also comprises guide rail, trolley body and suspender, and trolley body is arranged on guide rail movably, and lifting mechanism is arranged on trolley body, and suspender is connected with the stay wire end of hoisting mechanism.
In heat treatment process, after workpiece heat completes, quenching crane starts lifting workpieces, primary mover 5 is according to rated speed of rotation work, the power of primary mover 5 is passed to reel 4 through retarder 2, reel 4 is involved in drag-line in rotation process, and then the suspender ordering about stay wire end moves up, resulting belt start building part rise; When workpiece rises to predetermined altitude, drg 3 is braked, and primary mover 5 stops outputting power; Trolley body moves to above quenching bath along guide rail, start to transfer workpiece, first, drg 3 unclamps, under gravity, workpiece accelerates to move downward, in the process, drag-line band movable reel 4, retarder 2 and governor 1 rotate, when workpiece descending speed reaches predetermined value 40m/min, governor 1 provides resistance to the input shaft of retarder 2, stops workpiece to continue to accelerate and within the moving velocity of workpiece is limited in 40m/min; When the complete dip quench pond of workpiece, drg 3 starts braking.
Known by above-mentioned operation process, workpiece does not need primary mover 5 to provide power in decline process, the benefit done like this is: reduce the requirement to primary mover 5 on the one hand, such as, more low power primary mover 5 can be selected (if use variable-frequency motor to add frequency-changing control system to control the lifting of lifting mechanism, variable-frequency motor needs to provide the whole power in workpiece rising and decline process, in usual workpiece decline process, the horsepower output of variable-frequency motor is several times in workpiece uphill process, therefore, high-performance variable-frequency motor must be selected); On the other hand, transmission device no longer needs the conversion carrying out large speed ratio, can adopt more simply, more reliably, more compact design form.
It should be noted that, in type selecting process, primary mover 5, governor 1, retarder 2 and drg 3 can select various structures form, as long as it can realize predetermined function; In a preferred embodiment, primary mover 5 is variable-frequency motor or phase-wound rotor motor, and governor 1 is centrifugal speed governor, and retarder 2 is Double shaft-extension cylinder gear speed reducer, and drg 3 is hydraulic pressure block brake or hydraulic brake.
In order to alleviate the security risk that emergency episode produces, drg 3 is also provided with urgent brake-releasing gear, when there is emergency episode (when such as there are the extraordinary circumstances such as emergency power off, workpiece is needed to sink to quenching bath, prevent the danger such as fire), urgent brake-releasing gear carries independent storage power, even if there are the extraordinary circumstances such as emergency power off, still can be placed in quenching bath by workpiece safety; In view of urgent brake-releasing gear is applied comparatively general on quenching crane, its concrete structure no longer describes in detail here.
The utility model specific embodiment also proposes a kind of gate hoist, and comprise gate and above-mentioned lifting mechanism, gate is connected with the drag-line of hoisting mechanism.By adopting the lifting mechanism of said structure, this gate hoist cost is lower, more compact structure, and reliability is higher.Gate hoist needs to promote or decline gate in the course of the work, especially stop gate headstock gear needs gate quick set-down, therefore adopt above-mentioned lifting mechanism not only can realize the proper function of gate hoist, its cost can also be reduced, simplify its structure.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a lifting mechanism, it is characterized in that, comprise hoisting mechanism, primary mover (5), retarder (2), governor (1) and drg (3), input shaft and the output shaft of described retarder (2) be arranged in parallel, and the reel (4) of described hoisting mechanism is coaxially connected with the output shaft of retarder (2); Input shaft one end of described retarder (2) is connected with primary mover (5), the other end is connected with governor (1), and described drg (3) is arranged between retarder (2) and primary mover (5).
2. lifting mechanism according to claim 1, is characterized in that, described reel (4) and primary mover (5) are arranged at the same side of retarder (2).
3. lifting mechanism according to claim 2, is characterized in that, described primary mover (5) is variable-frequency motor or phase-wound rotor motor.
4. lifting mechanism according to claim 2, is characterized in that, described governor (1) is centrifugal speed governor.
5. lifting mechanism according to claim 2, is characterized in that, described retarder (2) is Double shaft-extension cylinder gear speed reducer.
6. lifting mechanism according to claim 2, is characterized in that, (3) are provided with urgent brake-releasing gear to described drg.
7. lifting mechanism according to claim 6, is characterized in that, described drg (3) is hydraulic pressure block brake or hydraulic brake.
8. a quenching crane, it is characterized in that, comprise guide rail, trolley body, suspender and the lifting mechanism described in any one of claim 1 to 7, described trolley body is arranged on described guide rail movably, described lifting mechanism is arranged on described trolley body, and described suspender is connected with the drag-line of hoisting mechanism.
9. a gate hoist, is characterized in that, comprise gate and the lifting mechanism described in any one of claim 1 to 7, described gate is connected with the drag-line of hoisting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420503052.6U CN204096984U (en) | 2014-09-02 | 2014-09-02 | Lifting mechanism, quenching crane and gate hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420503052.6U CN204096984U (en) | 2014-09-02 | 2014-09-02 | Lifting mechanism, quenching crane and gate hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204096984U true CN204096984U (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420503052.6U Expired - Fee Related CN204096984U (en) | 2014-09-02 | 2014-09-02 | Lifting mechanism, quenching crane and gate hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204096984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107810162A (en) * | 2015-06-19 | 2018-03-16 | 特雷克斯有限公司 | For the construction set of cable hoist and the conversion method of cable hoist |
-
2014
- 2014-09-02 CN CN201420503052.6U patent/CN204096984U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107810162A (en) * | 2015-06-19 | 2018-03-16 | 特雷克斯有限公司 | For the construction set of cable hoist and the conversion method of cable hoist |
| CN107810162B (en) * | 2015-06-19 | 2019-06-18 | 科尼起重机全球公司 | For the construction set of cable hoist and the conversion method of cable hoist |
| US10604388B2 (en) | 2015-06-19 | 2020-03-31 | Konecranes Global Corporation | Assembly kit for cable winches and method for converting a cable winch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SANY MARINE HEAVY INDUSTRIES CO., LTD. Free format text: FORMER OWNER: ZHUHAI SANYI HARBOR MACHINERY CO., LTD. Effective date: 20150605 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150605 Address after: 519050 Guangdong city of Zhuhai province Pingsha town Ping Road No. 336 East Building Room 310 Patentee after: 31 ocean heavy industry Co., Ltds Address before: 519050 Guangdong city of Zhuhai Province Island Gaolan Port Economic Zone on the west side of the levee Patentee before: ZHUHAI SANYI HARBOR MACHINERY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20150902 |
|
| EXPY | Termination of patent right or utility model |