CN103863961B - Electric motor built-in electric block - Google Patents
Electric motor built-in electric block Download PDFInfo
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- CN103863961B CN103863961B CN201410077987.7A CN201410077987A CN103863961B CN 103863961 B CN103863961 B CN 103863961B CN 201410077987 A CN201410077987 A CN 201410077987A CN 103863961 B CN103863961 B CN 103863961B
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- gear
- rope roll
- suspension hook
- limit switch
- rope
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Abstract
The invention discloses a kind of electric motor built-in Novel electric block, comprise support, rope roll, motor, drop-gear box, suspension hook and stop gear, suspension hook is connected on rope roll by steel rope, the bound position of suspension hook is controlled by stop gear, it is characterized in that: rope roll rotates setting between the front and back support plate of support, motor adopts and is close to magnetic brake motor, be close to magnetic brake electric machine built-in in the endoporus of rope roll, drop-gear box is arranged on the outside of supporting plate, and when being close to magnetic brake machine operation, its Power output is by driving rope roll to rotate after drop-gear box deceleration transmission; Described stop gear comprises position-limited lever, limit switch, gear, tooth bar and cam slide, and position-limited lever is arranged below rope roll, with side oscillation in suspension hook connecting steel wire ropes.More compact structure of the present invention, spacing more accurately sensitiveer, use safety and reliability simultaneously.
Description
Technical field
The present invention relates to be a kind of steel-wire rope type electric block improvement invention.
Background technology
Electric block mainly contains steel-wire rope type electric block and Electric Chain Blocks two kinds, and the field of application of steel-wire rope type electric block is the widest, so have higher requirement to its in-use performance.The main deficiency of existing steel-wire rope type electric block has: the monnolithic case size after the arrangement of motor, drop-gear box and rope roll is large, and structure is not compact, has very large drawback especially for Large Electric cucurbit; The spacing employing moving seesaw-type structure of stop gear, directly promote limit switch axle by the tilting of positioning plate to realize bound bit function from the contact of different limit switch, accuracy and sensitivity are all relatively poor, reliability is not enough, can not meet electric block development need and Geng Gao operating needs; Although drop-gear box has employing planetary gear transmission mechanism, still compact not on structure design, steel-wire rope type electric block needs to need further to be improved in braking in addition, thus meets the safe and reliable use of electric block better.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of more compact structure, spacing more accurately sensitiveer, uses the electric motor built-in electric block of safety and reliability simultaneously.
The present invention implements by following technical solution:
Electric motor built-in electric block, comprise support, rope roll, motor, drop-gear box, suspension hook and stop gear, suspension hook is connected on rope roll by steel rope, the bound position of suspension hook is controlled by stop gear, it is characterized in that: rope roll rotates setting between the front and back support plate of support, front and back support plate againsts the both sides end face of rope roll, motor adopts and is close to magnetic brake motor, be close to magnetic brake electric machine built-in in the endoporus of rope roll, drop-gear box is arranged on the outside of supporting plate, and when being close to magnetic brake machine operation, its Power output is by driving rope roll to rotate after drop-gear box deceleration transmission.
The electric block of technique scheme, maximum feature be electric machine built-in in the endoporus of rope roll, greatly can shorten the oad of product like this, thus make more compact structure; The front and back support plate of support againsts the both sides end face setting of rope roll in addition, also effectively can shorten the installing space of product axis; Magnetic brake motor is close in employing then can make electric block possess basic braking function.
As preferably, described stop gear comprises position-limited lever, limit switch axle, limit switch, gear, tooth bar and cam slide, position-limited lever is arranged below rope roll, with side oscillation in suspension hook connecting steel wire ropes, when suspension hook arrives upper limit position, collision block on suspension hook promotes position-limited lever and upwards swings, when suspension hook arrives lower position, draw close with suspension hook connecting steel wire ropes and promote position-limited lever to lower swing in the middle of rope roll, gear is connected with the oscillating axle of position-limited lever, rack and pinion engaged transmission, tooth bar is connected with cam slide, cam slide horizontally slips setting, cam slide has the low cam curved surface of section about interlude height, limit switch axle is provided with two, left and right, the vertical movable setting of left and right limit switch axle, when cam slide mediates, the lower end of left and right limit switch axle is resisted against on the left and right section cam curved surface of cam slide respectively, limit switch is provided with two, left and right above the limit switch axle of left and right, it is right that the contact of left and right limit switch and the upper of left and right limit switch axle are rectified.
Adopt the stop gear of technique scheme, can the bound bit function of control realization electric block by swinging up and down of a position-limited lever, structure is simple, reliably spacing.After position-limited lever swings up and down, forward or reverse can be carried out by driven gear, the rotation of gear can be with carry-over bar and cam slide sway, the cam curved surface had by cam slide is again promoted left and right limit switch axle and carries out corresponding press-out, and then the contact promoting left and right limit switch controls left and right limit switch connection; Rotation due to gear can be reflected to rapidly the sway of cam slide, cam slide then promotes the action of limit switch axle with steadily and not producing impact by curved surface, and can hold mode reposefully under the effect that leans of cam curved surface after the action of limit switch axle, thus more accurately realize the spacing of electric block bound position more delicately, and reliably spacing.
After arriving upper limit position for preventing suspension hook, steel rope departs from rope roll, and present invention employs following technical scheme: be provided with pin in the below of rope roll, pin is connected on support, and the steel rope be connected with suspension hook passes from the centre of pin and position-limited lever.After adopting above-mentioned design, after suspension hook arrives upper limit position, steel rope protects would not depart from rope roll due to blocking of pin, makes the safe and reliable of electric block.
As preferably, drop-gear box adopts three tooth difference gear transmissions, comprise casing, input gear, satellite gear, fixed annulus and rotational inner gear, input gear is connected on motor output shaft, fixed annulus and rotational inner gear common row star-wheel, the external tooth that fixed annulus is provided with by its internal tooth near end face outside and cabinet wall forms a fixed connection, the external tooth that rotational inner gear is provided with by its internal tooth near inner side end and rope roll end face forms a fixed connection, and casing fixedly mounts in the outside of supporting plate.
The bright spot of the drop-gear box of technique scheme is adopted to have three: 1. fixed annulus and rotational inner gear common row star-wheel, makes the axial dimension of drop-gear box diminish, also make structure simple; 2. cabinet wall arranges external tooth and fixed annulus forms a fixed connection and rope roll end face arranges external tooth and rotational inner gear forms a fixed connection, not only make structure simple, and the axial dimension of drop-gear box can be made to diminish, in a word, the axial dimension of drop-gear box diminishes, and makes the structure of electric block more compact equally; 3. the planetary gear structure of above-mentioned drop-gear box also plays auxiliary brake action to electric block when braking, and can realize two braking effects of electric block, make the use safety and reliability of electric block.
Accompanying drawing explanation
The present invention has following accompanying drawing:
Fig. 1 is constructional drawing of the present invention,
Fig. 2 is the left view of Fig. 1.
Detailed description of the invention
Details and the principle of work of the specific embodiment of the invention is described in detail below in conjunction with accompanying drawing:
As shown in the figure, electric motor built-in electric block of the present invention, comprise support, rope roll 3, motor 2, drop-gear box, suspension hook 14 and stop gear, suspension hook 14 is connected on rope roll 3 by steel rope 12, the bound position of suspension hook 14 is controlled by stop gear, rope roll 3 rotates setting between the front and back support plate 1 of support, front and back support plate 1 againsts the both sides end face of rope roll 3, motor 2 adopts and is close to magnetic brake motor, being close to magnetic brake electric machine built-in in the endoporus of rope roll 3 is fixedly connected with supporting plate 1, drop-gear box is arranged on the outside of supporting plate, when being close to magnetic brake machine operation, its Power output is by driving rope roll to rotate after drop-gear box deceleration transmission.
Described stop gear comprises position-limited lever 11, limit switch axle 16, limit switch 15, gear 9, tooth bar 18 and cam slide 19, position-limited lever 11 is arranged below rope roll 3, with side oscillation in suspension hook connecting steel wire ropes 12, when suspension hook 14 arrives upper limit position, collision block 13 on suspension hook promotes position-limited lever 11 and upwards swings, when suspension hook arrives lower position, draw close with suspension hook connecting steel wire ropes 12 and promote position-limited lever 11 to lower swing in the middle of rope roll, gear 9 is connected with the oscillating axle 10 of position-limited lever 11, tooth bar 18 and gear 9 engaged transmission, tooth bar 18 is connected with cam slide 19, cam slide 19 horizontally slips setting, the top of cam slide 19 has the low cam curved surface 19a of section about interlude height, limit switch axle 16 is provided with two, left and right, the vertical movable setting of left and right limit switch axle 16, when cam slide 19 mediates, the lower end of left and right limit switch axle 16 is resisted against on the left and right section cam curved surface of cam slide 19 respectively, limit switch 15 is provided with two, left and right above left and right limit switch axle 16, it is right that the contact of left and right limit switch 15 and the upper of left and right limit switch axle 16 are rectified.Be provided with pin 17 in the below of rope roll 3, pin 17 is connected on supporting plate 1, and the steel rope 12 be connected with suspension hook passes from the centre of pin 17 and position-limited lever 11.
Drop-gear box adopts three tooth difference gear transmissions, comprise casing 4, input gear 8, satellite gear 7, fixed annulus 6 and rotational inner gear 5, input gear 8 is connected on motor 2 output shaft, fixed annulus 6 and rotational inner gear 5 common row star-wheel 7, the external tooth that fixed annulus 6 is provided with by its internal tooth near end face outside and casing 4 inwall forms a fixed connection, the external tooth that rotational inner gear 5 is provided with by its internal tooth near inner side end and rope roll 3 end face forms a fixed connection, and casing 4 fixedly mounts in the outside of supporting plate 1.
The present invention is performed such crane lifting service: drive input gear 8 successively after electric motor starting, satellite gear 7, rotational inner gear 5 and rope roll 3 rotate, when suspension hook 14 arrives upper limit position, collision block 13 on suspension hook promotes position-limited lever 11 and upwards swings, position-limited lever 11 after upwards swinging can rotate forward by driven gear 9, the rotating forward of gear 9 can be reflected to rapidly cam slide 19 and move right, cam slide 19 carries out press-out to right limit switch shaft 16 with steadily and not producing impact by curved surface 19a, and then the contact control right limit switch 15 promoting right limit switch 15 is connected, motor 2 carries out upper braking, can hold mode reposefully under the effect that leans of cam curved surface 19a after right limit switch shaft 16 action, thus it is spacing more accurately to realize electric block upper limit position more delicately, and it is reliably spacing, when suspension hook 14 arrives lower position, draw close with suspension hook connecting steel wire ropes 12 and promote position-limited lever 11 to lower swing in the middle of rope roll, can rotate backward by driven gear 9 to the position-limited lever 11 after lower swing, the rotating backward of gear 9 can be reflected to rapidly cam slide 19 and be moved to the left, cam slide 19 carries out press-out to left limit switch shaft 16 with steadily and not producing impact by curved surface 19a, and then the contact control left limit switch 15 promoting left limit switch 15 is connected, motor 2 carries out lower braking, can hold mode reposefully under the effect that leans of cam curved surface 19a after left limit switch shaft 16 action, thus it is spacing more accurately to realize electric block lower position more delicately, and it is reliably spacing.
Claims (3)
1. electric motor built-in electric block, comprise support, rope roll, motor, drop-gear box, suspension hook and stop gear, suspension hook is connected on rope roll by steel rope, the bound position of suspension hook is controlled by stop gear, it is characterized in that: rope roll rotates setting between the front and back support plate of support, front and back support plate againsts the both sides end face of rope roll, motor adopts and is close to magnetic brake motor, be close to magnetic brake electric machine built-in in the endoporus of rope roll, drop-gear box is arranged on the outside of supporting plate, when being close to magnetic brake machine operation, its Power output is by driving rope roll to rotate after drop-gear box deceleration transmission, described stop gear comprises position-limited lever, limit switch axle, limit switch, gear, tooth bar and cam slide, position-limited lever is arranged below rope roll, with side oscillation in suspension hook connecting steel wire ropes, when suspension hook arrives upper limit position, collision block on suspension hook promotes position-limited lever and upwards swings, when suspension hook arrives lower position, draw close with suspension hook connecting steel wire ropes and promote position-limited lever to lower swing in the middle of rope roll, gear is connected with the oscillating axle of position-limited lever, rack and pinion engaged transmission, tooth bar is connected with cam slide, cam slide horizontally slips setting, cam slide has the low cam curved surface of section about interlude height, limit switch axle is provided with two, left and right, the vertical movable setting of left and right limit switch axle, when cam slide mediates, the lower end of left and right limit switch axle is resisted against on the left and right section cam curved surface of cam slide respectively, limit switch is provided with two, left and right above the limit switch axle of left and right, it is right that the contact of left and right limit switch and the upper of left and right limit switch axle are rectified.
2. electric motor built-in electric block as claimed in claim 1, it is characterized in that: be provided with pin in the below of rope roll, pin is connected on support, and the steel rope be connected with suspension hook passes from the centre of pin and position-limited lever.
3. electric motor built-in electric block as claimed in claim 1, it is characterized in that: drop-gear box adopts three tooth difference gear transmissions, comprise casing, input gear, satellite gear, fixed annulus and rotational inner gear, input gear is connected on motor output shaft, fixed annulus and rotational inner gear common row star-wheel, the external tooth that fixed annulus is provided with by its internal tooth near end face outside and cabinet wall forms a fixed connection, the external tooth that rotational inner gear is provided with by its internal tooth near inner side end and rope roll end face forms a fixed connection, casing fixedly mounts in the outside of supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410077987.7A CN103863961B (en) | 2014-03-05 | 2014-03-05 | Electric motor built-in electric block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410077987.7A CN103863961B (en) | 2014-03-05 | 2014-03-05 | Electric motor built-in electric block |
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| Publication Number | Publication Date |
|---|---|
| CN103863961A CN103863961A (en) | 2014-06-18 |
| CN103863961B true CN103863961B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410077987.7A Active CN103863961B (en) | 2014-03-05 | 2014-03-05 | Electric motor built-in electric block |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115924780A (en) * | 2022-12-21 | 2023-04-07 | 重庆钢铁股份有限公司 | Electric block stop gear |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348218A (en) * | 2008-08-19 | 2009-01-21 | 八达机电有限公司 | Single-phase electric gourd with lower caging device |
| CN101362580A (en) * | 2008-09-02 | 2009-02-11 | 八达机电有限公司 | Single-phase electric gourd with lower bound range stop |
| CN202054564U (en) * | 2011-05-20 | 2011-11-30 | 任丘市坤达机械有限公司 | Electric block and limit device for multilayer wound steel wire rope electric block |
| CN203699760U (en) * | 2014-03-05 | 2014-07-09 | 八达机电有限公司 | Motor built-in type novel electric hoist |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006182548A (en) * | 2004-12-28 | 2006-07-13 | Kito Corp | Device for preventing excessive winding-up for chain block |
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2014
- 2014-03-05 CN CN201410077987.7A patent/CN103863961B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348218A (en) * | 2008-08-19 | 2009-01-21 | 八达机电有限公司 | Single-phase electric gourd with lower caging device |
| CN101362580A (en) * | 2008-09-02 | 2009-02-11 | 八达机电有限公司 | Single-phase electric gourd with lower bound range stop |
| CN202054564U (en) * | 2011-05-20 | 2011-11-30 | 任丘市坤达机械有限公司 | Electric block and limit device for multilayer wound steel wire rope electric block |
| CN203699760U (en) * | 2014-03-05 | 2014-07-09 | 八达机电有限公司 | Motor built-in type novel electric hoist |
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| CN103863961A (en) | 2014-06-18 |
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Address after: No.8 YuMeng Road, Ruian Economic Development Zone, Wenzhou, Zhejiang 325200 Patentee after: Bada Electromechanical Co.,Ltd. Address before: No.8 YuMeng Road, Ruian Economic Development Zone, Wenzhou, Zhejiang 325200 Patentee before: BADA MECHANICAL & ELECTRICAL Co.,Ltd. |
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