CN203976274U - A kind of Electric Chain Blocks - Google Patents
A kind of Electric Chain Blocks Download PDFInfo
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- CN203976274U CN203976274U CN201420434673.3U CN201420434673U CN203976274U CN 203976274 U CN203976274 U CN 203976274U CN 201420434673 U CN201420434673 U CN 201420434673U CN 203976274 U CN203976274 U CN 203976274U
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- wheel
- chain
- wheel shaft
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- gear wheel
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Abstract
The utility model discloses a kind of Electric Chain Blocks, motor and chain hoist wheel left and right be arranged in parallel, chain hoist wheel turning set is connected on lifting chain wheel shaft, speed reduction gearing comprises the one-level straight-tooth wheels that are installed on the first gear wheel shaft and is installed on the secondary big gear wheel of chain hoist wheel spindle nose side, lifting chain wheel shaft afterbody one side is arranged with the second gear wheel shaft in parallel, the second gear wheel shaft is provided with tertiary gear group, one-level big gear wheel engaged transmission in the output shaft of motor and one-level gear cluster, one-level miniature gears in one-level gear cluster and secondary big gear wheel engaged transmission, secondary big gear wheel drives lifting chain wheel shaft to rotate, three grades of big gear wheel engaged transmission in the tail gear of lifting chain wheel shaft afterbody and tertiary gear group, three grades of miniature gearss in tertiary gear group and chain hoist wheel engaged transmission drive chain hoist wheel to rotate.The utility model can not only have larger mechanical strength to transmit load torque, and the volume of retarder also dwindles greatly.
Description
Technical field
The utility model relates to electric block.
Background technology
Electric block is widely used in moving, lift by crane and loading and unloading of the places such as factory, mine, harbour, warehouse, goods yard, shop.Particularly Electric Chain Blocks, the application aspect warehouse and truck-mounted crane, has become the indispensable auxiliary equipments such as western developed country pick up, lorry, trailer.
But common Electric Chain Blocks, retarder adopts three grades of dead axle spiral gear drive mechanisms conventionally, gear and gear wheel shaft are by making through hot-cured alloy steel, casing, case lid is made up of high quality cast iron, requires assembly precision high, good seal, also cause it to exist volume large, use inconvenient drawback simultaneously.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of volume Electric Chain Blocks small and exquisite and easy to use.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of Electric Chain Blocks, comprise housing, in described housing, be provided with motor, speed reduction gearing, chain hoist wheel, described motor and chain hoist wheel left and right be arranged in parallel, described chain hoist wheel turning set is connected on lifting chain wheel shaft, described speed reduction gearing comprises the one-level straight-tooth wheels that are installed on the first gear wheel shaft and is installed on the secondary big gear wheel of chain hoist wheel spindle nose side, the first gear wheel shaft is set in parallel in chain hoist wheel shaft head one side, lifting chain wheel shaft afterbody one side is arranged with the second gear wheel shaft in parallel, the second gear wheel shaft is provided with tertiary gear group, one-level big gear wheel engaged transmission in the output shaft of motor and one-level gear cluster, one-level miniature gears in one-level gear cluster and secondary big gear wheel engaged transmission, secondary big gear wheel drives lifting chain wheel shaft to rotate, three grades of big gear wheel engaged transmission in the tail gear of lifting chain wheel shaft afterbody and tertiary gear group, three grades of miniature gearss in tertiary gear group and chain hoist wheel engaged transmission drive chain hoist wheel to rotate.
Preferably, be also provided with the double brake device of mechanical braking mechanism and electromagnetic braking mechanism composition.
Preferably, described mechanical braking mechanism comprises the Brake Block of being located at chain hoist wheel spindle nose side, described Brake Block and lifting chain wheel shaft are by interior external toothing engaged transmission, friction lining and ratchet are installed on described Brake Block, described lifting chain wheel shaft is provided with multiple screw thread mandrel section in Brake Block outside, described multiple screw thread mandrel section is provided with friction disc, ratchet and click-fit, and ratchet is connected with ratchet spring.
Preferably, described electromagnetic braking mechanism is by the button switch control of the main switch on electric control box and a peripheral hardware, shown in button switch take wireless remote control control.
Preferably, described motor adopts AC and DC series machine.
The utility model be arranged motor and chain hoist wheel left and right in parallel, meanwhile motor output shaft, slow down and drive chain hoist wheel rotation by two groups of straight-tooth speed reduction gearings of lifting chain wheel shaft both sides, thereby drive ring chain to realize traction, wherein secondary big gear wheel connects braking brake disk simultaneously, test shows, above-mentioned design can not only have larger mechanical strength to transmit load torque, and the volume of retarder also dwindles greatly.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
Fig. 1 is structural representation one of the present utility model;
Fig. 2 is structural representation two of the present utility model.
Detailed description of the invention
Illustrate embodiment of the present utility model below in conjunction with Fig. 1 and Fig. 2.
A kind of Electric Chain Blocks, comprise housing 4, in described housing, be provided with motor 1, speed reduction gearing, chain hoist wheel 3, described motor 1 and chain hoist wheel 3 left and right be arranged in parallel, described chain hoist wheel 3 turning sets are connected on lifting chain wheel shaft 31, described speed reduction gearing comprises the secondary big gear wheel 25 that is installed on the one-level straight-tooth wheels on the first gear wheel shaft 14 and is installed on chain hoist wheel spindle nose side, the first gear wheel shaft is set in parallel in chain hoist wheel shaft head one side, lifting chain wheel shaft afterbody one side is arranged with the second gear wheel shaft in parallel, the second gear wheel shaft is provided with tertiary gear group, one-level big gear wheel 12 engaged transmission in motor output shaft 11 and one-level gear cluster, one-level miniature gears 13 and secondary big gear wheel 25 engaged transmission in one-level gear cluster, secondary big gear wheel drives lifting chain wheel shaft to rotate, three grades of big gear wheel 35 engaged transmission in tail gear 33 and the tertiary gear group of lifting chain wheel shaft afterbody, three grades of miniature gearss 36 in tertiary gear group drive chain hoist wheel to rotate with chain hoist wheel 3 engaged transmission.
Promote the load of electric block, the effect of transmission device is very important, also will meet the requirement of reduced volume simultaneously.Therefore the transmission scheme that the utility model adopts, slow down and drive chain hoist wheel rotation by two groups of straight-tooth speed reduction gearings of lifting chain wheel shaft both sides, thereby drive ring chain to realize traction, test shows, above-mentioned design can not only have larger mechanical strength to transmit load torque, and the volume of retarder also dwindles greatly.
In addition, electric block is very high to the requirement of braking, and requiring has machinery and double electromagnetic braking, want under 1.1 times of rated load weights, to do dynamic test should be working properly simultaneously, braking reliably.Therefore this Electric Chain Blocks is provided with the double brake device of mechanical braking mechanism 2 and electromagnetic braking mechanism composition.Described mechanical braking mechanism 2 comprises the Brake Block 21 of being located at chain hoist wheel spindle nose side, described Brake Block and lifting chain wheel shaft 31 are by interior external toothing engaged transmission, friction lining 23 and ratchet 22 are installed on described Brake Block, described lifting chain wheel shaft is provided with multiple screw thread mandrel section 32 in Brake Block outside, described multiple screw thread mandrel section is provided with friction disc 24, ratchet coordinates with ratchet 26, and ratchet is connected with ratchet spring 27.
In the time that motor cw (from shaft extension end) rotates, drive one-level big gear wheel 12 conter clockwises turn, secondary big gear wheel 25 cws turn, friction disc 24 cws turn, because multiple-threaded guiding, make friction disc and ratchet under big gear wheel be close to, close, friction force drives friction disc to rotate together with ratchet, and now ratchet is can veer, cucurbit can promote, so because have ratchet to withstand the downslide of can not reversing.
In the time of motor dead electricity, motor does not rotate.Load weight makes chain hoist wheel conter clockwise stressed, drive three grades of big gear wheel 35 cws stressed, tail gear 33, lifting chain wheel shaft 31, Brake Block 21 conter clockwises are stressed, now friction disc 24 and mandrel are under multiple screw thread effect, friction disc and friction lining close, but now because ratchet pushes up firm ratchet, institute, so that whole train cannot be rotated, brakes thereby realize.
In the time of motor left-hand revolution, drive that one-level big gear wheel 12 cws turn, the 25 big gear wheel inverse times of secondary big gear wheel turn, under big gear wheel, friction disc is thrown off with ratchet, no longer includes friction force, and ratchet is inoperative, and cucurbit can non-resistance decline.
Described electromagnetic braking mechanism is by the main switch on electric control box and a peripheral hardware button switch control, shown in button switch take wireless remote control control.Main switch on electric control box can in case of emergency cut off power circuit, and protects the device of section limiting device, button switch to adopt hand behaviour formula with a upper and lower stroke, lightly nimble.
Not only the volume of motor own is very little to select AC/DC series excited machine, and rotating speed is very high, and drop-gear box volume also can correspondingly reduce, and lifting performance is also no less than AC electrical cucurbit.Owing to adopting the independent power supply of AC and DC or dual-purpose series machine, can be in the wild or vehicle-mounted hang on use, light being easy to carry, had both been applicable to direct supply, was applicable to again two-phase or three-phase alternating-current supply.
Claims (5)
1. an Electric Chain Blocks, comprise housing, in described housing, be provided with motor, speed reduction gearing, chain hoist wheel, it is characterized in that: described motor and chain hoist wheel left and right be arranged in parallel, described chain hoist wheel turning set is connected on lifting chain wheel shaft, described speed reduction gearing comprises the one-level straight-tooth wheels that are installed on the first gear wheel shaft and is installed on the secondary big gear wheel of chain hoist wheel spindle nose side, the first gear wheel shaft is set in parallel in chain hoist wheel shaft head one side, lifting chain wheel shaft afterbody one side is arranged with the second gear wheel shaft in parallel, the second gear wheel shaft is provided with tertiary gear group, one-level big gear wheel engaged transmission in the output shaft of motor and one-level gear cluster, one-level miniature gears in one-level gear cluster and secondary big gear wheel engaged transmission, secondary big gear wheel drives lifting chain wheel shaft to rotate, three grades of big gear wheel engaged transmission in the tail gear of lifting chain wheel shaft afterbody and tertiary gear group, three grades of miniature gearss in tertiary gear group and chain hoist wheel engaged transmission drive chain hoist wheel to rotate.
2. a kind of Electric Chain Blocks according to claim 1, is characterized in that: the double brake device that is also provided with mechanical braking mechanism and electromagnetic braking mechanism composition.
3. a kind of Electric Chain Blocks according to claim 2, it is characterized in that: described mechanical braking mechanism comprises the Brake Block of being located at chain hoist wheel spindle nose side, described Brake Block and lifting chain wheel shaft are by interior external toothing engaged transmission, friction lining and ratchet are installed on described Brake Block, described lifting chain wheel shaft is provided with multiple screw thread mandrel section in Brake Block outside, described multiple screw thread mandrel section is provided with friction disc, ratchet and click-fit, and ratchet is connected with ratchet spring.
4. a kind of Electric Chain Blocks according to claim 2, is characterized in that: described electromagnetic braking mechanism is by the button switch control of the main switch on electric control box and a peripheral hardware, shown in button switch take wireless remote control control.
5. according to a kind of Electric Chain Blocks described in claim 1 to 4 any one, it is characterized in that: described motor adopts AC and DC series machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420434673.3U CN203976274U (en) | 2014-08-04 | 2014-08-04 | A kind of Electric Chain Blocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420434673.3U CN203976274U (en) | 2014-08-04 | 2014-08-04 | A kind of Electric Chain Blocks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203976274U true CN203976274U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420434673.3U Active CN203976274U (en) | 2014-08-04 | 2014-08-04 | A kind of Electric Chain Blocks |
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| Country | Link |
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| CN (1) | CN203976274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000489A (en) * | 2015-07-14 | 2015-10-28 | 陕西科技大学 | Pelletizer lifter |
-
2014
- 2014-08-04 CN CN201420434673.3U patent/CN203976274U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000489A (en) * | 2015-07-14 | 2015-10-28 | 陕西科技大学 | Pelletizer lifter |
| CN105000489B (en) * | 2015-07-14 | 2017-06-16 | 陕西科技大学 | A kind of comminutor lift |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 321017, 1689, Yuen Yuan Road, Zhejiang, Jinhua Patentee after: ZHEJIANG NOWVOW MECHANICAL AND ELECTRICAL CORP. Address before: 321017, 1689, Yuen Yuan Road, Zhejiang, Jinhua Patentee before: Zhejiang Nowvow Mechanical and Electrical Co., Ltd. |