CN2260792Y - Mechanical-braking electric lifter - Google Patents
Mechanical-braking electric lifter Download PDFInfo
- Publication number
- CN2260792Y CN2260792Y CN 96218687 CN96218687U CN2260792Y CN 2260792 Y CN2260792 Y CN 2260792Y CN 96218687 CN96218687 CN 96218687 CN 96218687 U CN96218687 U CN 96218687U CN 2260792 Y CN2260792 Y CN 2260792Y
- Authority
- CN
- China
- Prior art keywords
- motor
- output wheel
- gear
- casing
- housing
- 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 - Fee Related
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Abstract
The utility model relates to a mechanical-braking electric lifter, belonging to equipment for the lifting job of material, and comprising a motor, a casing which is butted with the motor, an output wheel in the casing and a loop chain wrapped on the output wheel, wherein, an output shaft of the motor is directly connected with an eccentric shaft ion on which a duplicate gear is arranged; the duplicate gear is respectively engaged with a gear ring fixed in the casing and the gear ring on the output wheel to form a speed reducing mechanism with internal gearing. The utility model adopts the reducing mechanism with double internal gearing and a differential gear train with few teeth; the motor can realize self locking by that the power is switched off, replacing a complicated electric braking system, and thus the entire lifter has the advantages of small size, simple structure, high reliability and low production cost.
Description
Mechanical braking electric hoisting device belongs to a kind of device of material lifting job.
Existing electric hoisting device generally is made up of braking motor and hoist mechanism two large divisions.The braking that is in operation is to rely on the spring thrust mutual action to finish by friction braking part on the rotor and the friction braking part on the motor case, and the separation of friction braking part need rely on electromagnetic force mechanism compression brake spring to realize, thereby its brake system is complicated, be prone to the brake system fault, and safeguard that the work capacity of adjusting brake system is also bigger.
The purpose of this utility model is that brake system is adjusted difficulty, the unsettled shortcoming of deceleration and stopping performance at the complex structure of existing electric hoisting device existence, and provide a kind of simple in structure, and deceleration and stopping performance is reliable, and the Jack volume is little, mechanical braking electric hoisting device in light weight, that productive costs is low.
The technical scheme that realizes above-mentioned purpose is: a kind of mechanical braking electric hoisting device includes electrical motor, the housing that dock with electrical motor, the end cap of housing front end, the output wheel that housing is interior and be around in loop chain on the output wheel; Output shaft direct connection one eccentric shaft of its electrical motor is equipped with a duplex gear on this eccentric shaft, this dual gear meshes with the gear ring and the gear ring on the output wheel that are fixed in the housing respectively, forms two internal gearing speed reduction gearings.
The utility model is owing to adopt two internal gearing few tooth difference transmission mechanisms, cooperate the when specified hoisting weight of suitable transmission again, can realize motor outage back self-locking, thereby replace complicated electric braking system by the self-locking that gearing mechanism produces, make Jack adopt the common electric machine of non-electric braking to become possibility.Greatly reduce the cost of Jack, and make total system simple in structure, volume-diminished; Simultaneously also reduce the fault that occurs in the Jack operational process, increased the stability of properties of product; Also make adjustment, the maintenance of system become simple and easy to do.
Accompanying drawing is this mechanical braking electric hoisting device structure master cutaway view.
The utility model is described in further detail below in conjunction with drawings and Examples.
Provide as accompanying drawing, it has the common driving motor 1 of a non-electric braking, electrical motor front end butt joint housing 8, and the front end of housing 8 is provided with end cap 9.Output wheel 3 places in the housing, and lifting loop chain 4 is around in it and takes turns.Output shaft 2 direct connections one eccentric shaft 5 of electrical motor 1 is adorned a duplex gear 6 on the eccentric shaft 5, dual gear meshes with the gear ring 7 and the gear ring on the output wheel that are fixed in the housing 8 respectively, forms the few tooth differential axis train speed reduction gearing of a pair of internal gearing (NN type).Since the few tooth differential axis train speed reduction gearing of NN type have only when input shaft initiatively the time whole train could rotate.Make it when realizing the lifting transmission, have the function of power-off brake again.
Claims (1)
1, a kind of mechanical braking electric hoisting device comprises electrical motor (1), the housing that docks with electrical motor (8), the end cap of housing front portion (9), the output wheel (3) in the housing and be around in loop chain (4) on the output wheel; It is characterized in that: the output shaft of electrical motor (2) direct connection one eccentric shaft (5), one duplex gear (6) is housed on this eccentric shaft, its dual gear meshes with the gear ring (7) and the gear ring on the output wheel that are fixed in the housing (8) respectively, forms two internal gearing speed reduction gearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96218687 CN2260792Y (en) | 1996-08-15 | 1996-08-15 | Mechanical-braking electric lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96218687 CN2260792Y (en) | 1996-08-15 | 1996-08-15 | Mechanical-braking electric lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2260792Y true CN2260792Y (en) | 1997-08-27 |
Family
ID=33899480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96218687 Expired - Fee Related CN2260792Y (en) | 1996-08-15 | 1996-08-15 | Mechanical-braking electric lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2260792Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953695A (en) * | 2014-04-28 | 2014-07-30 | 四川大学 | High-damping filtering speed reducer |
-
1996
- 1996-08-15 CN CN 96218687 patent/CN2260792Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953695A (en) * | 2014-04-28 | 2014-07-30 | 四川大学 | High-damping filtering speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |