CN204173826U - A kind of Electric Chain Blocks device with overload protection - Google Patents
A kind of Electric Chain Blocks device with overload protection Download PDFInfo
- Publication number
- CN204173826U CN204173826U CN201420500607.1U CN201420500607U CN204173826U CN 204173826 U CN204173826 U CN 204173826U CN 201420500607 U CN201420500607 U CN 201420500607U CN 204173826 U CN204173826 U CN 204173826U
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- China
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- seat
- gear
- friction
- rubs
- overload protection
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Abstract
The utility model discloses a kind of Electric Chain Blocks device with overload protection, comprise motor assembly, speed reducer assembly and chain assembly, described motor assembly is in transmission connection through safety clutch mechanism and described speed reducer assembly, it is characterized in that: described safety clutch mechanism comprises a clutch spindle, described clutch spindle to be fixedly connected sequentially the second gear through keyway arrangements, first friction seat and the second friction seat, described first friction seat and the second seat intermediate friction that rubs is connected with the first gear, described second gear and the described first seat outer face that rubs is conflicted, on described clutch spindle, closely described second friction seat outer end place is provided with bearing, described bearing and described second rubs between seat outer face and is provided with hold-down mechanism.The utility model can actv. prevent overload time motor and driving system impaired, safe reliability is higher.
Description
Technical field
The utility model relates to a kind of weight-lifting equipment, is specifically related to a kind of Electric Chain Blocks device with overload protection.
Background technology
Electric Chain Blocks is a kind of small-sized weight-lifting equipment, is mainly used in the places such as factory's storehouse, fondouk, supermarket, market, storage department, and Electric Chain Blocks of the prior art is primarily of speed reducer assembly, and motor assembly and chain assembly form.Traditional small-sized Electric Chain Blocks is made up of electrical motor, transmission device and sprocket wheel usually, for guaranteeing that electrical motor passes out larger torque, often adopts the planetary gear reduction box that transmitting ratio is large to realize the increasing square that slows down.But this kind of small-sized cucurbit often lacks prevent overload mechanism, when overload moment of torsion excessive time, can cause electrical motor and driving system impaired, safe reliability is poor.On the other hand, conventional small-sized calabash electrical machinery brake portion adopts and pulls chain, and braking sensitivity, accuracy and reliability are all poor.
Summary of the invention
The utility model object is to provide a kind of Electric Chain Blocks device with overload protection, prevent overload time motor and driving system impaired, safe reliability is higher.
The technical solution of the utility model is: a kind of Electric Chain Blocks device with overload protection, comprise motor assembly, speed reducer assembly and chain assembly, described motor assembly is in transmission connection through safety clutch mechanism and described speed reducer assembly, it is characterized in that: described safety clutch mechanism comprises a clutch spindle, described clutch spindle to be fixedly connected sequentially the second gear through keyway arrangements, first friction seat and the second friction seat, described first friction seat and the second seat intermediate friction that rubs is connected with the first gear, described second gear and the described first seat outer face that rubs is conflicted, on described clutch spindle, closely described second friction seat outer end place is provided with bearing, described bearing and described second rubs between seat outer face and is provided with hold-down mechanism.
Further technical scheme, described keyway arrangements comprises a flat key, be engaged on described clutch spindle with described flat key, the second gear, first seat and second seat inside that rubs that rubs offers keyway respectively, described second gear, the first friction seat and the second friction seat to coordinate with keyway through flat key and are fixedly connected on described clutch spindle.
Further technical scheme, described hold-down mechanism is a belleville spring, and described belleville spring one end and described second seat outer face that rubs is conflicted, and the other end and described bearing are conflicted.
Further technical scheme, is respectively equipped with friction lining between the inner of described first friction seat and the second friction seat and described first gear.
Further technical scheme, described first gear is connected with the pto of described motor assembly, and the power input shaft of described second gear and described speed reducer assembly is in transmission connection.
Further technical scheme, described bearing outer end is provided with trip ring.
It may be noted that in the utility model and guarantee the first gear and first, second gripping power rubbed between seat of the left and right sides by hold-down mechanism.During real work, the first gear by both sides friction seat between friction force carry out transmitting torque, drive whole clutch spindle and on second gear running.
The utility model has the advantages that: when the utility model normally uses, the power take-off shaft of motor assembly drives the first pinion rotation, the first gear driven first, second friction seat, clutch spindle and second pinion rotation thus by power transmission to reductor assembly; During overload, the Driving Torque of motor exceedes the tolerance value of safety clutch mechanism, first gear is first, second friction seat skid relatively, thus first, second friction seat, clutch spindle and the second pinion rotation can not be driven, avoid motor and transmission device when overloading to be damaged, the safe reliability of whole device is higher.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the structural representation of safety clutch mechanism in the utility model embodiment one;
Fig. 3 is the decomposing schematic representation of safety clutch mechanism in the utility model embodiment one.
Wherein: 1, speed reducer assembly; 2, chain assembly; 3, safety clutch mechanism; 4, clutch spindle; 5, the second gear; 6, the first friction seat; 7, the second friction seat; 8, the first gear; 9, bearing; 10, hold-down mechanism; 11, flat key; 12, keyway; 13, friction lining; 14, trip ring.
Detailed description of the invention
Embodiment one: see shown in Fig. 1 to 3, a kind of Electric Chain Blocks device with overload protection, comprise motor assembly, speed reducer assembly 1 and chain assembly 2, described motor assembly is in transmission connection with described speed reducer assembly 1 through safety clutch mechanism 3, described safety clutch mechanism 3 comprises a clutch spindle 4, described clutch spindle 4 to be fixedly connected sequentially the second gear 5 through keyway arrangements, first friction seat 6 and the second friction seat 7, described first friction seat 6 and second seat 7 intermediate friction that rubs is connected with the first gear 8, friction lining 13 is also respectively equipped with between the inner of described first friction seat 6 and the second friction seat 7 and described first gear 8, described second gear 5 and described first seat 6 outer face that rubs is conflicted, on described clutch spindle 4, closely described second friction seat 7 outer end place is provided with bearing 9, described bearing 9 outer end is provided with trip ring 14, described bearing 9 and described second rubs between seat 7 outer face and is provided with hold-down mechanism 10, this hold-down mechanism is a belleville spring, described belleville spring one end and described second seat outer face that rubs is conflicted, the other end and described bearing are conflicted.
Described keyway arrangements comprises a flat key 11, be engaged on described clutch spindle 4 with described flat key 11, the second gear, first seat and second seat inside that rubs that rubs offers keyway 12 respectively, described second gear, the first friction seat and the second friction seat to coordinate with keyway through flat key and are fixedly connected on described clutch spindle.
Installation step of the present utility model is as follows:
(1) first bearing is installed on clutch spindle;
(2) mounting spring back-up ring;
(3) friction lining is respectively installed on first and second friction seat;
(4) belleville spring is installed on clutch spindle;
(5) flat key is installed;
(6) the second friction seat is installed;
(7) the first gear is installed;
(8) the first friction seat is installed;
(9) the second gear is installed.
The first gear in safety clutch mechanism is used for being connected with the pto of motor assembly, and the power input shaft of the second gear and speed reducer assembly is in transmission connection.Electric Chain Blocks device is when normally using, motor assembly power take-off shaft rotates the first pinion rotation driving and be attached thereto, due to the first gear and first and second seat frictional connection that rubs, first pinion rotation thus friction drive first and second friction seat rotate, first and second friction seat is fixedly connected on clutch spindle through keyway arrangements, and then clutch spindle can be driven to rotate, the second gear be fixedly connected on clutch spindle also rotates thereupon, second gear is owing to being in transmission connection with the power input shaft of speed reducer assembly, while second pinion rotation so drive speed reducer assembly start rotate, realize motor assembly being in transmission connection through safety clutch mechanism and speed reducer assembly.When there is overload condition, the Driving Torque of motor exceedes tolerance value, now the first gear slipping idle running, first and second friction seat can not be driven to rotate, whole clutch spindle and the second gear all can not rotate, thus avoid motor, retarder, transmission device etc. when overloading and be damaged, the safe reliability of whole device is higher.
Certain above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All modifications done according to the Spirit Essence of the utility model main technical schemes, all should be encompassed within protection domain of the present utility model.
Claims (6)
1. the Electric Chain Blocks device with overload protection, comprise motor assembly, speed reducer assembly (1) and chain assembly (2), described motor assembly is in transmission connection with described speed reducer assembly (1) through safety clutch mechanism (3), it is characterized in that: described safety clutch mechanism (3) comprises a clutch spindle (4), described clutch spindle (4) to be fixedly connected sequentially the second gear (5) through keyway arrangements, first friction seat (6) and the second friction seat (7), described first friction seat (6) is connected with the first gear (8) with second seat (7) intermediate friction that rubs, described second gear (5) and described first seat (6) outer face that rubs is conflicted, on described clutch spindle (4), closely described second friction seat (7) outer end place is provided with bearing (9), described bearing (9) and described second rubs between seat (7) outer face and is provided with hold-down mechanism (10).
2. a kind of Electric Chain Blocks device with overload protection according to claim 1; it is characterized in that: described keyway arrangements comprises a flat key (11); offer keyway (12) respectively with described flat key (11) seat and second that is engaged in that described clutch spindle (4) is upper, the second gear, the first rub seat inside that rub, described second gear, first seat and second seat that rubs that rubs to coordinate with keyway through flat key and is fixedly connected on described clutch spindle.
3. a kind of Electric Chain Blocks device with overload protection according to claim 1; it is characterized in that: described hold-down mechanism (10) is a belleville spring; described belleville spring one end and described second seat outer face that rubs is conflicted, and the other end and described bearing are conflicted.
4. a kind of Electric Chain Blocks device with overload protection according to claim 1, is characterized in that: be respectively equipped with friction lining (13) between the inner of described first friction seat (6) and the second friction seat (7) and described first gear (8).
5. a kind of Electric Chain Blocks device with overload protection according to claim 1; it is characterized in that: described first gear is connected with the pto of described motor assembly, the power input shaft of described second gear and described speed reducer assembly is in transmission connection.
6. a kind of Electric Chain Blocks device with overload protection according to claim 1, is characterized in that: described bearing (9) outer end is provided with trip ring (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420500607.1U CN204173826U (en) | 2014-09-01 | 2014-09-01 | A kind of Electric Chain Blocks device with overload protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420500607.1U CN204173826U (en) | 2014-09-01 | 2014-09-01 | A kind of Electric Chain Blocks device with overload protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204173826U true CN204173826U (en) | 2015-02-25 |
Family
ID=52562655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420500607.1U Active CN204173826U (en) | 2014-09-01 | 2014-09-01 | A kind of Electric Chain Blocks device with overload protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204173826U (en) |
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2014
- 2014-09-01 CN CN201420500607.1U patent/CN204173826U/en active Active
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| GR01 | Patent grant |