CN105174110A - Crane hoisting mechanism with anti-falling type hand-operating device for nuclear power station - Google Patents
Crane hoisting mechanism with anti-falling type hand-operating device for nuclear power station Download PDFInfo
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- CN105174110A CN105174110A CN201510527943.4A CN201510527943A CN105174110A CN 105174110 A CN105174110 A CN 105174110A CN 201510527943 A CN201510527943 A CN 201510527943A CN 105174110 A CN105174110 A CN 105174110A
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Abstract
The invention discloses a crane hoisting mechanism with an anti-falling type hand-operating device for a nuclear power station. The crane hoisting mechanism comprises an electric motor, a winding drum set, a brake, a brake wheel shaft coupler, a speed reducer and a handle mechanism, wherein a friction sheet I, a friction plate, a fixed plate, a friction plate and a friction sheet II of the handle mechanism are sequentially arranged on the shaft sleeve in a penetrating and sleeving mode; the shaft sleeve is arranged at the front section of a flange shaft sleeve of a flange in the sleeving mode; a central screw hole of the hand wheel is screwed in right-hand threads at the middle section of the flange shaft sleeve; a retainer ring is arranged at the rear section of the flange shaft sleeve of the flange in the penetrating mode; all parts are fixed together by virtue of a disc spring and a nut; springs is arranged between the external circumference of the fixed plate and a fixed flange; and the other end of the fixed flange is fixed on a fixed base through a pin roll. The crane hoisting mechanism has the beneficial effects that the load is prevented from automatically dropping, the structure is simple, the arrangement is convenient, the dismounting is convenient, and the same set of device can be used for multiple hoisting mechanisms.
Description
Technical field
The present invention relates to nuclear plant crane lifting mechanism, especially anti-falling manual unit.。
Background technology
Fuel for nuclear power plant transshipment crane is used for handling Nuclear Plant, fuel assembly belongs to Dangerous Load, in its handling process hoisting crane break down or power down mode time fuel assembly also will be guaranteed to be put into safe place, therefore such crane hoisting mechanism is provided with hand gear.
The patent No. is: CN200520128465.1.A, title: the patent documentation of " hand gear of crane hoisting mechanism ", discloses the version of such hand gear, is click version.The deficiency of this patented technology is: only have when manual unit lifted load, could automatically prevent load from falling voluntarily, when manual unit decline load, can not automatically prevent load from falling voluntarily after the hand disengaging operating handle of operating personal.Ratchet wheel pawl type hand gear complex structure in addition, takes up room large.
Therefore exploitation is a kind of safely, reliable, and when no matter being Manual lift start, decline, the manual unit that all can automatically prevent load from falling voluntarily is the technical matters that this area is badly in need of solving.
Summary of the invention
The object of the invention is to: when a kind of Manual lift start, decline load are provided, the nuclear plant crane lifting mechanism that all can automatically prevent load from falling voluntarily, improve the manually operated safe reliability of fuel for nuclear power plant feedway lifting mechanism.
Technical scheme of the present invention is as follows: the nuclear plant crane lifting mechanism of band anti-falling manual unit, comprise electrical motor, reel group, drg, brake wheel coupler, retarder and handle mechanism, electrical motor is connected with retarder by drg, two brake wheel coupler are connected between electrical motor and drg and between drg and retarder, it is characterized in that: described handle mechanism comprises friction plate, friction lining I, flange, axle sleeve, key, adapter plate, set pin, friction lining II, attachment flange, handwheel, baffle ring, disc spring, nut, spring, roller and permanent seat, described friction plate is plectane, friction plate is with centre hole, described adapter plate is plectane, adapter plate is with centre hole, adapter plate excircle is provided with spring and hole installed by roller, and installation hole circumferentially anticlockwise direction is offered, and the centre hole of two pieces of friction plates aligns with the centre hole of adapter plate and is fixed on the two sides of adapter plate by set pin, described friction lining I and friction lining II is circular friction plates, and friction lining is with centre hole, and friction lining I and friction lining II is placed on outside two pieces of friction plates respectively, and friction lining I, friction plate, adapter plate, friction plate and friction lining II are set on axle sleeve successively, the one side of described flange is with flange shaft sleeve, and flange shaft sleeve stage casing is provided with dextrorotation outside thread, and back segment is with negative thread, and described axle sleeve is set on the leading portion of the flange shaft sleeve of flange, described handwheel is with center screw, and the screw thread of screw matches with the dextrorotation outside thread in flange shaft sleeve stage casing, and the center screw of handwheel is screwed on the dextrorotation outside thread in the flange shaft sleeve stage casing of flange, described baffle ring is through on the flange shaft sleeve back segment of flange, described disc spring is placed in baffle ring outer end, and nut is screwed on the negative thread of flange shaft sleeve back segment of flange, friction plate, friction lining I, flange, axle sleeve, adapter plate, set pin, friction lining II, handwheel and baffle ring is fixed together with disc spring and nut, described spring is placed on adapter plate excircle to be installed bottom hole, and described roller is placed on spring, described attachment flange is Long Circle flange, attachment flange one end has the hole coordinated with adapter plate cylindrical, the other end has pin shaft hole, the borehole jack that attachment flange one end coordinates with adapter plate cylindrical is on adapter plate excircle, roller is made to press against spring, the attachment flange other end is fixed on permanent seat by bearing pin, and permanent seat is fixed on hoist frame.
The nuclear plant crane lifting mechanism of band anti-falling manual unit of the present invention, is characterized in that: described in, hole installed by the spring on adapter plate excircle and roller is on three one, and adapter plate excircle is uniformly distributed.
The nuclear plant crane lifting mechanism of band anti-falling manual unit of the present invention, it is characterized in that: described in, the spring on adapter plate excircle and roller install hole circumferentially anti-clockwise angle be hole axis and the angle installed between the circumferential point tangent line of place, hole are installed at 5 ° ~ 10 °.
During use, by the flange sleeve of the nuclear plant crane lifting mechanism of band anti-falling manual unit on the high speed shaft of retarder (5), attachment flange is fixed on permanent seat, namely completes installation.
Principle of work of the present invention is: attachment flange is enclosed within after on adapter plate, and spring press against roller all the time, keeps and the contacting of attachment flange endoporus and adapter plate periphery.Attachment flange one end is fixed on permanent seat by bearing pin, and namely attachment flange keeps non rotating.When adapter plate left-hand revolution, under the effect of spring and attachment flange endoporus, roller is while with adapter plate left-hand revolution, anti-clockwise straight line thin tail sheep is had relative to adapter plate, make roller and between attachment flange and adapter plate, squeese pressure increases, when after pressure increase to certain value, adapter plate and attachment flange are fixed together.That is, adapter plate can rotate along pin, but namely keeps motionless after rotating counterclockwise small distance, and namely adapter plate " can not rotate counterclockwise ".
Handwheel (15) clockwise direction rotates as lifted load, because being right-hand screw thread in the middle part of flange, therefore when handwheel clockwise direction rotates, friction plate, friction lining I, flange, adapter plate, handwheel clamp mutually, overall clockwise direction rotates, and band live load hoists; Otherwise when being rotated by handwheel anticlockwise direction, now unclamp between friction plate, friction lining I, flange, adapter plate, handwheel, friction force diminishes or disappears, load realizes declining.
No matter handwheel is when clockwise direction rotates or anticlockwise direction rotates, also namely no matter hoist or decline load time, once because misoperation, or hand has been departed from handwheel by operating personal because of carelessness, then handwheel is in free state.When load starts to fall, flange anticlockwise direction under the drive of the high speed shaft of retarder rotates, because friction plate, friction lining I, flange, adapter plate, handwheel clamp mutually by the inertia of handwheel, because now adapter plate " can not rotate counterclockwise ", therefore load stops falling after the small distance that fallen, and ensure that the safety of load.
Compared with prior art, the present invention has following beneficial effect:
1. prevent load from falling voluntarily;
2. structure is simple, arrangement convenience;
3. convenient disassembly, same set of device, can be used for multiple stage lifting mechanism.
Accompanying drawing explanation
Fig. 1 is the front view of the nuclear plant crane lifting mechanism of band anti-falling manual unit;
Fig. 2 is that the handle mechanism of Fig. 1 possesses enlarged drawing;
The A-A cutaway view of Fig. 3 Fig. 2;
1. electrical motors in figure; 2. reel group; 3. drg; 4. brake wheel coupler; 5. retarder 6. friction plate; 7. friction lining I; 8. flange; 9. axle sleeve; 10. key; 11. adapter plates; 12. set pins; 13. friction lining II; 14. attachment flanges; 15. handwheels; 16. baffle rings; 17. disc springs; 18. nut 19. springs; 20. rollers; 21. permanent seats; 22. handle mechanisms.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
With the nuclear plant crane lifting mechanism of anti-falling manual unit, comprise electrical motor 1, reel group 2, drg 3, brake wheel coupler 4, retarder 5 and handle mechanism 22, electrical motor 1 is connected with retarder 5 by drg 3, and two brake wheel coupler 4 are connected between electrical motor 1 and drg 3 and between drg 3 and retarder 5; Handle mechanism 22 comprises friction plate 6, friction lining I7, flange 8, axle sleeve 9, key 10, adapter plate 11, set pin 12, friction lining II13, attachment flange 14, handwheel 15, baffle ring 16, disc spring 17, nut 18, spring 19, roller 20 and permanent seat 21, friction plate 6 is plectanes, and friction plate 6 is with centre hole; Adapter plate 11 is plectanes, adapter plate 11 is with centre hole, adapter plate 11 excircle is provided with six springs 19 and hole installed by roller 20, six hole is installed to be uniformly distributed on adapter plate 11 excircle, installation hole circumferentially anticlockwise direction is offered, and the angle between installation hole axis and installation place, hole circumferential point tangent line is at 10 °; The centre hole of two pieces of friction plates 6 aligns with the centre hole of adapter plate 11 and is fixed on the two sides of adapter plate 11 by set pin 12; Friction lining I7 and friction lining II13 is circular friction plates, friction lining is with centre hole, friction lining I7 and friction lining II13 is placed on outside two pieces of friction plates 6 respectively, and friction lining I7, friction plate 6, adapter plate 11, friction plate 6 and friction lining II13 are set on axle sleeve 9 successively; The one side of flange 8 is with flange shaft sleeve, and flange shaft sleeve stage casing is provided with dextrorotation outside thread, and back segment is with negative thread, and axle sleeve 9 is set on the leading portion of the flange shaft sleeve of flange 8; Handwheel 15 is with center screw, and the screw thread of screw matches with the dextrorotation outside thread in flange shaft sleeve stage casing, and the center screw of handwheel 15 is screwed on the dextrorotation outside thread in the flange shaft sleeve stage casing of flange 8; Baffle ring 16 is through on the flange shaft sleeve back segment of flange 8; Disc spring 17 is placed in baffle ring 16 outer end, nut 18 is screwed on the negative thread of flange shaft sleeve back segment of flange 8, friction plate 6, friction lining I7, flange 8, axle sleeve 9, adapter plate 11, set pin 12, friction lining II13, handwheel 15 and baffle ring 16 is fixed together with disc spring 17 and nut 18; Spring 19 is placed in, and adapter plate 11 excircle is installed bottom hole, and roller 20 is placed on spring 19; Attachment flange 14 is Long Circle flanges, attachment flange 14 1 end has the hole coordinated with adapter plate 11 cylindrical, the other end has pin shaft hole, the borehole jack that attachment flange 14 one end coordinates with adapter plate 11 cylindrical is on adapter plate 11 excircle, roller 20 is made to press against spring 19, attachment flange 14 other end is fixed on permanent seat 21 by bearing pin, and permanent seat 21 is fixed on hoist frame.
Claims (3)
1. be with the nuclear plant crane lifting mechanism of anti-falling manual unit, comprise electrical motor (1), reel group (2), drg (3), brake wheel coupler (4), retarder (5) and handle mechanism (22), electrical motor (1) is connected with retarder (5) by drg (3), two brake wheel coupler (4) are connected between electrical motor (1) and drg (3) and between drg (3) and retarder (5), it is characterized in that: described handle mechanism (22) comprises friction plate (6), friction lining I (7), flange (8), axle sleeve (9), key (10), adapter plate (11), set pin (12), friction lining II (13), attachment flange (14), handwheel (15), baffle ring (16), disc spring (17), nut (18), spring (19), roller (20) and permanent seat (21), described friction plate (6) is plectane, and friction plate (6) is with centre hole, described adapter plate (11) is plectane, adapter plate (11) is with centre hole, adapter plate (11) excircle is provided with spring (19) and hole installed by roller (20), installation hole circumferentially anticlockwise direction is offered, and the centre hole of two pieces of friction plates (6) aligns with the centre hole of adapter plate (11) and is fixed on the two sides of adapter plate (11) by set pin (12), described friction lining I (7) and friction lining II (13) are circular friction plates, friction lining is with centre hole, friction lining I (7) and friction lining II (13) is placed on two pieces of friction plate (6) outsides respectively, and friction lining I (7), friction plate (6), adapter plate (11), friction plate (6) and friction lining II (13) are set on axle sleeve (9) successively, the one side of described flange (8) is with flange shaft sleeve, and flange shaft sleeve stage casing is provided with dextrorotation outside thread, and back segment is with negative thread, and described axle sleeve (9) is set on the leading portion of the flange shaft sleeve of flange (8), described handwheel (15) is with center screw, and the screw thread of screw matches with the dextrorotation outside thread in flange shaft sleeve stage casing, and the center screw of handwheel (15) is screwed on the dextrorotation outside thread in the flange shaft sleeve stage casing of flange (8), described baffle ring (16) is through on the flange shaft sleeve back segment of flange (8), described disc spring (17) is placed in baffle ring (16) outer end, nut (18) is screwed on the negative thread of the flange shaft sleeve back segment of flange (8), friction plate (6), friction lining I (7), flange (8), axle sleeve (9), adapter plate (11), set pin (12), friction lining II (13), handwheel (15) and baffle ring (16) is fixed together with disc spring (17) and nut (18), described spring (19) is placed in, and adapter plate (11) excircle is installed bottom hole, and described roller (20) is placed on spring (19), described attachment flange (14) is Long Circle flange, attachment flange (14) one end has the hole coordinated with adapter plate (11) cylindrical, the other end has pin shaft hole, the borehole jack that attachment flange (14) one end coordinates with adapter plate (11) cylindrical is on adapter plate (11) excircle, roller (20) is made to press against spring (19), attachment flange (14) other end is fixed on permanent seat (21) by bearing pin, and permanent seat (21) is fixed on hoist frame.
2. the nuclear plant crane lifting mechanism of band anti-falling manual unit as claimed in claim 1, it is characterized in that: described in, hole installed by spring (19) on adapter plate (11) excircle and roller (20) is on three one, and adapter plate (11) excircle is uniformly distributed.
3. the nuclear plant crane lifting mechanism of band anti-falling manual unit as claimed in claim 2, it is characterized in that: described in, the spring (19) on adapter plate (11) excircle and roller (20) install hole circumferentially anti-clockwise angle be hole axis and the angle installed between the circumferential point tangent line of place, hole are installed at 5 ° ~ 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510527943.4A CN105174110B (en) | 2015-08-25 | 2015-08-25 | Crane hoisting mechanism with anti-falling type hand-operating device for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510527943.4A CN105174110B (en) | 2015-08-25 | 2015-08-25 | Crane hoisting mechanism with anti-falling type hand-operating device for nuclear power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105174110A true CN105174110A (en) | 2015-12-23 |
| CN105174110B CN105174110B (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510527943.4A Active CN105174110B (en) | 2015-08-25 | 2015-08-25 | Crane hoisting mechanism with anti-falling type hand-operating device for nuclear power station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107285203A (en) * | 2017-06-15 | 2017-10-24 | 窦智扬 | A kind of novel architecture tower crane |
Citations (5)
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|---|---|---|---|---|
| CN2825570Y (en) * | 2005-10-11 | 2006-10-11 | 大连华锐股份有限公司 | Hand-operated mechanism for hoisting mechanism of crane |
| CN201250071Y (en) * | 2008-08-26 | 2009-06-03 | 大连华锐股份有限公司 | Hoisting mechanism for a coke jar transfer crane |
| CN102145853A (en) * | 2011-04-26 | 2011-08-10 | 安徽金钟机电设备有限公司 | Anti-falling hanging hook of crane |
| CN203079605U (en) * | 2012-12-20 | 2013-07-24 | 山东蓝天重工股份有限公司 | Hoisting mechanism of crane |
| CN204873677U (en) * | 2015-08-25 | 2015-12-16 | 大连华锐重工集团股份有限公司 | Area prevent falling formula hand operations's nuclear power station hoist hoisting mechanism |
-
2015
- 2015-08-25 CN CN201510527943.4A patent/CN105174110B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2825570Y (en) * | 2005-10-11 | 2006-10-11 | 大连华锐股份有限公司 | Hand-operated mechanism for hoisting mechanism of crane |
| CN201250071Y (en) * | 2008-08-26 | 2009-06-03 | 大连华锐股份有限公司 | Hoisting mechanism for a coke jar transfer crane |
| CN102145853A (en) * | 2011-04-26 | 2011-08-10 | 安徽金钟机电设备有限公司 | Anti-falling hanging hook of crane |
| CN203079605U (en) * | 2012-12-20 | 2013-07-24 | 山东蓝天重工股份有限公司 | Hoisting mechanism of crane |
| CN204873677U (en) * | 2015-08-25 | 2015-12-16 | 大连华锐重工集团股份有限公司 | Area prevent falling formula hand operations's nuclear power station hoist hoisting mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107285203A (en) * | 2017-06-15 | 2017-10-24 | 窦智扬 | A kind of novel architecture tower crane |
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| CN105174110B (en) | 2017-04-19 |
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