CN203079554U - Auxiliary monorail hoist of refueling machine for nuclear power plant - Google Patents

Auxiliary monorail hoist of refueling machine for nuclear power plant Download PDF

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Publication number
CN203079554U
CN203079554U CN 201220685559 CN201220685559U CN203079554U CN 203079554 U CN203079554 U CN 203079554U CN 201220685559 CN201220685559 CN 201220685559 CN 201220685559 U CN201220685559 U CN 201220685559U CN 203079554 U CN203079554 U CN 203079554U
Authority
CN
China
Prior art keywords
lifting
transmission
power plant
nuclear power
hoisting
Prior art date
Application number
CN 201220685559
Other languages
Chinese (zh)
Inventor
叶阳春
李均
唐兴贵
谢亮
吴明
金青
袁巍
欧阳立华
Original Assignee
中国核电工程有限公司
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Filing date
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Application filed by 中国核电工程有限公司 filed Critical 中国核电工程有限公司
Priority to CN 201220685559 priority Critical patent/CN203079554U/en
Application granted granted Critical
Publication of CN203079554U publication Critical patent/CN203079554U/en

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Abstract

The utility model relates to fuel handling and storage system equipment for a nuclear power plant, in particular to an auxiliary monorail hoist of a refueling machine for the nuclear power plant. The auxiliary monorail hoist comprises a hoisting frame, a hoisting transmission mechanism is connected at two ends of the hoisting frame by a left support plate and a right support plate, the middle part of the hoisting frame is connected with a fixed lifting device by a lifting hook plate, the lower end of the fixed lifting device is connected with one end of a steel wire rope, the other end of the steel wire rope is wound on a winding drum of the hoisting transmission mechanism, the steel wire rope is connected with a lifting hook assembly by a pulley, a device for rope arrangement is arranged at the lower part of a hoisting beam of the hoisting frame, a walking limit switch and a hoisting limit switch are arranged at the upper part of the hoisting beam of the hoisting frame, the upper part of the hoisting frame is connected with a walking transmission mechanism, and buffer devices are arranged at two ends of the walking transmission mechanism. By arranging double steel wire ropes, a cam limit switch, an encoder assembly and double braking devices, the auxiliary monorail hoist can realize safety protection functions required by operation process.

Description

Monorail hoist is assisted with fuel manipulator crane by a kind of nuclear power plant
Technical field
The utility model relates to nuclear power plant's fuel handling and storage system equipment, is specifically related to a kind of nuclear power plant and assists monorail hoist with fuel manipulator crane.
Background technology
In nuclear reactor cold-refueling process, need utilize a series of special tools the fuel assembly in the pressure container and associated component, control arm drive spindle and irradiation sample plug etc. are operated and to be checked, therefore on fuel manipulator crane, need to be provided with an electronic auxiliary monorail hoist, use for the lifting special tool.The safety of based on fuel operating procedure and reliability requirement, this crane should possess safety protection functions such as single failure protection, load protection, speed protection, multiple position limitation protection.
State in realization in the process of single track whipline function, the contriver finds to lack in the prior art the auxiliary monorail hoist of fuel manipulator crane that satisfies nuclear power plant's fuel handling process safety protection requirement.
The utility model content
The purpose of this utility model is the defective at prior art, provides a kind of nuclear power plant to assist monorail hoist with fuel manipulator crane, thereby is used for operand relevant in the lifting special tool operating reactor, satisfies nuclear power plant's fuel handling process safety protection requirement.
The technical solution of the utility model is as follows: monorail hoist is assisted with fuel manipulator crane by a kind of nuclear power plant, comprise raising legs, connect the lifting transmission device at the raising legs two ends by left and right support plate, be connected and fixed lifting appliance at the raising legs middle part by the suspension hook plate, fixed hoisting device lower end is connected with an end of steel rope, the steel rope other end is wrapped on the reel that promotes transmission device, and steel rope links to each other with hook assembly by pulley; Rope guide is equipped with in the lifting beam bottom of raising legs, and the lifting beam top of raising legs is provided with the walking limit switch and promotes limit switch; Raising legs top connects walking transmission mechanism, and the walking transmission mechanism two ends are provided with shock absorber.
Further, monorail hoist is assisted with fuel manipulator crane by aforesaid nuclear power plant, wherein, described raising legs as lifting beam, respectively is connected lifting transmission device, walking transmission mechanism, fixed hoisting device and rope guide by end plate, lifting plate, suspension hook plate and the base plate that is welded on the lifting beam by a square hollow section.
Further, monorail hoist is assisted with fuel manipulator crane by aforesaid nuclear power plant, and wherein, described lifting transmission device comprises reel, transmission shaft, lifting motor, retarder, sure brake; Have the lifting motor that moves drg and link to each other with the retarder high speed shaft by coupler, the retarder slow-speed shaft matches with the transmission shaft that is installed in reel one side, drives reel and rotatablely moves; The reel opposite side connects the sure brake that is used for brake operating under the accident conditions.
Further, monorail hoist is assisted with fuel manipulator crane by aforesaid nuclear power plant, wherein, described walking transmission mechanism is made up of 4 running wheels and driver train, and 4 running wheels comprise 2 driving wheels and 2 flower wheels, is connected with 4 boatswain chairs respectively, the drive motor connection reducer of walking transmission mechanism, drive the transmission gear rotation by transmission shaft, the gear on the driving wheel in transmission gear and the running wheel is meshed, and moves thereby drive traveling gear.
Further, monorail hoist is assisted with fuel manipulator crane by aforesaid nuclear power plant, wherein, described fixed hoisting device comprises that lifting joint, balance boatswain chair, load LOAD CELLS, disconnected rope detect near switch, the lifting joint is a double end U type piece, top U type groove links to each other with suspension hook plate on the raising legs by the load LOAD CELLS, and bottom U type groove is equipped with the balance boatswain chair by bearing pin, and two steel ropes link to each other with balance boatswain chair two ends respectively.
Further, monorail hoist is assisted with fuel manipulator crane by aforesaid nuclear power plant, and wherein, described rope guide links to each other with raising legs by support, and pushes down the roller steel wire rope by a round steel, on the rope guide support limit switch is installed.
Further, aforesaid nuclear power plant is with the auxiliary monorail hoist of fuel manipulator crane, wherein, is equipped with and is used to monitor the hoisting speed of lift system and the cam limit switch and the encoder component of hoisting depth promoting transmission device retarder slow-speed shaft side.
The beneficial effects of the utility model are as follows: nuclear power plant provided by the utility model mainly comprises parts such as raising legs, lift system, traveling gear, fixed hoisting device, rope guide with the auxiliary monorail hoist of fuel manipulator crane, by the safety protection function that double-steel wire rope, cam limit switch and encoder component and dual brake realize that operating procedure is required is set.This equipment possesses safety protection functions such as single failure protection, load protection, speed protection, multiple position limitation protection, guarantees the safe and reliable of operating process.
Description of drawings
Fig. 1 is the structural representation of a kind of nuclear power plant with the auxiliary monorail hoist of fuel manipulator crane;
Fig. 2 is the structural representation of raising legs;
Fig. 3 is for promoting the structural representation of transmission device;
Fig. 4 is the structural representation of walking operating unit;
Fig. 5 is the structural representation of fixed hoisting device;
The structural representation of Fig. 6 inhibiting device;
Fig. 7 is cam limit switch and encoder component mounting structure scheme drawing.
Among the figure: 1. raising legs; 2. lifting transmission device; 3. walking transmission mechanism; 4. walking limit switch; 5. fixed hoisting device; 6. rope guide; 7. steel rope; 8. hook assembly; 9. lifting beam; 10. lifting plate; 11. end plate; 12. raising legs base plate; 13. suspension hook plate; 14. reel; 15. oil drain pan; 16. coder and cam limit switch assembly; 17. lifting handwheel; 18. lift system retarder; 19. left supported plate; 20. Connection Block; 21. lifting motor; 22. right supported plate; 23. sure brake; A 24. boatswain chair; 25. traveling gear motor and retarder; 26. traveling gear transmission shaft; 27. adhesion wheel; 28. transmission gear; 29. balance boatswain chair; 30. near switch; 31. lifting joint; 32. load LOAD CELLS; 33. lifting limit switch; 34. switch lever; 35. fuel manipulator crane monorail; 36. bump rubber; 37. coupler coupling spindle.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
Embodiment
As shown in Figure 1, the auxiliary monorail hoist of fuel manipulator crane mainly is made up of inhibiting device such as raising legs 1, lifting transmission device 2, walking operating unit 3, fixed hoisting device 5, rope guide 6, hook assembly 8 and walking limit switch 4 and lifting limit switches 33.
As shown in Figure 2, raising legs 1 is a steel framed structure, and material is a high-tensile structural steel.Lifting beam 9 is the square hollow steel, respectively weld an end plate 11 at the two ends of lifting beam 9 and be used for connecting lifting transmission device 2, the both sides, front and back of lifting beam 9 respectively are welded with two lifting plates 10 and are used to connect traveling gear 3, lifting beam 9 middle parts are welded with suspension hook plate 13 and are used to be connected and fixed lifting appliance 5, and lifting beam 9 bottoms are welded with 2 base plates 12 and are used to connect rope guide 6.
As shown in Figure 3, promoting transmission device 2 is a winch structure.Reel 14 is the corrosion-resistant steel cylinder, is processed with grooving on it and is used for lay winding wire ropes 7.Reel 14 both sides by bearing installation on left supported plate 19 and right supported plate 22.Left supported plate 19 and right supported plate 22 are connected by fastener with the two end plates 11 at raising legs 1 two ends respectively.Reel 14 1 sides link to each other by the slow-speed shaft of transmission shaft with lift system retarder 18.The lifting motor 21 of tape running drg links to each other with the high speed shaft of lift system retarder 18 by Connection Block 20, is used to drive reel 14 rotations, thus lifting wire rope 7.Another mouth of the high speed shaft of lift system retarder 18 is used for installing lifting handwheel 17, and faulty condition can promote handwheel 7 by this down and finish promoting the M/C of transmission device 2.Be provided with oil drain pan 15 in lift system retarder 18 bottoms, be used to prevent the lubricating oil drippage.The other end at reel 14 is provided with safety electromagnetic drg 23, the emergency brake operations when being used for et out of order.
As shown in Figure 1 and Figure 4, auxiliary monorail hoist can laterally operation on fuel manipulator crane monorail 35 by walking operating unit 3.4 boatswain chairs 24 link to each other with 4 lifting plates 10 on the raising legs 1 by fastener.Traveling gear motor and retarder 25 pass through key connecting with traveling gear transmission shaft 26, and 2 transmission gears 28 are housed on the traveling gear transmission shaft 26, transmission gear 28 and adhesion wheel 27 engagements.By above drive mechanism, traveling gear motor and retarder 25 can drive 27 rotations of 2 driving wheels, and rolling-operation is on fuel manipulator crane monorail 35.
As shown in Figure 5, the lifting joint 31 of fixed hoisting device 5 is a double end U type piece, top U type groove links to each other with suspension hook plate 13 on the raising legs by load LOAD CELLS 32, and bottom U type groove is equipped with 29, two steel ropes 7 of balance boatswain chair by bearing pin and links to each other with balance boatswain chair 29 two ends respectively.By load LOAD CELLS 32, can realize monitoring, and utilize its load signal that sends that the overload protection value is set lifting load, realize the load protection of equipment.Respectively be equipped with one near switch 30 in lifting joint 31 both sides, be used to detect the state of equilibrium of balance boatswain chair 29, unbalance if balance boatswain chair 29 takes place, then an end of balance boatswain chair 29 will contact a side near switch 30, send alerting signal.
As Fig. 1 and shown in Figure 6, the auxiliary monorail crane of fuel manipulator crane is provided with rod-type walking limit switch 4 and rod-type promotes limit switch 33.Walking limit switch 4 is installed in the top of raising legs 1, and position-limited lever is vertically placed.At the two ends of fuel manipulator crane monorail 35 end position, a switch lever 34 respectively is installed, when limit switch 4 when end position touches switch lever 34, send signal, crane is out of service.Promote limit switch 33 and be positioned at reel 14 belows, be used to limit the upper limit position of hook assembly 8, will touch when hook assembly 8 rises to the lifting end position and stir the switch lever that promotes limit switch 33, send signal, suspension hook stops lifter motion.On 4 boatswain chairs of walking transmission mechanism 3, an energy disperser 36 is installed respectively, is used in both sides end position buffering backstop.
As Fig. 3 and shown in Figure 7, at the low speed axle head of lift system retarder 18 coder and cam limit switch assembly 16 are installed, this assembly connects with the reductor slow-speed shaft by the coupling spindle 37 of coupler, the synchronous rotation of realization and reel 14.Coder is an absolute rotary encoder; can realize position and speed control to the crane dipping and heaving; cam limit switch can carry out spacing control to 4 raised position simultaneously, is used with coder, can realize spacing, speed limit safety protection function that fuel handling technology is required.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technology thereof, then the utility model also is intended to comprise these changes and modification interior.

Claims (7)

1. monorail hoist is assisted with fuel manipulator crane by a nuclear power plant, comprise raising legs, pass through a left side at raising legs (1) two ends, right supported plate (19,22) connect lifting transmission device (2), be connected and fixed lifting appliance (5) at raising legs (1) middle part by suspension hook plate (13), fixed hoisting device (5) lower end is connected with an end of steel rope (7), steel rope (7) other end is wrapped on the reel (14) that promotes transmission device, steel rope (7) links to each other with hook assembly (8) by pulley, rope guide (6) is equipped with in lifting beam (9) bottom of raising legs (1), it is characterized in that: the lifting beam of raising legs (9) top is provided with walking limit switch (4) and promotes limit switch (33); Raising legs (1) top connects walking transmission mechanism (3), and the walking transmission mechanism two ends are provided with shock absorber (36).
2. monorail hoist is assisted with fuel manipulator crane by nuclear power plant as claimed in claim 1, it is characterized in that: described raising legs (1) as lifting beam (9), respectively is connected lifting transmission device (2), walking transmission mechanism (3), fixed hoisting device (5) and rope guide (6) by end plate (11), lifting plate (10), suspension hook plate (13) and the base plate (12) that is welded on the lifting beam (9) by a square hollow section.
3. monorail hoist is assisted with fuel manipulator crane by nuclear power plant as claimed in claim 1, and it is characterized in that: described lifting transmission device (2) comprises reel (14), transmission shaft, lifting motor (21), retarder (18), sure brake (23); Have the lifting motor (21) that moves drg and link to each other by the high speed shaft of coupler with retarder (18), the retarder slow-speed shaft matches with the transmission shaft that is installed in reel (14) one sides, drives reel (14) and rotatablely moves; Reel (14) opposite side connects the sure brake (23) that is used for brake operating under the accident conditions.
4. monorail hoist is assisted with fuel manipulator crane by nuclear power plant as claimed in claim 1, it is characterized in that: described walking transmission mechanism (3) is made up of 4 running wheels and driver train, 4 running wheels comprise 2 driving wheels (27) and 2 flower wheels, be connected with 4 boatswain chairs (24) respectively, the drive motor connection reducer (25) of walking transmission mechanism, drive transmission gear (28) rotation by transmission shaft (26), gear on the driving wheel (27) in transmission gear (28) and the running wheel is meshed, thereby drives walking transmission mechanism (3) motion.
5. monorail hoist is assisted with fuel manipulator crane by nuclear power plant as claimed in claim 1, it is characterized in that: described fixed hoisting device (5) comprises that lifting joint (31), balance boatswain chair (29), load LOAD CELLS (32), disconnected rope detect near switch (30), lifting joint (31) is a double end U type piece, top U type groove links to each other with suspension hook plate (13) on the raising legs (1) by load LOAD CELLS (32), bottom U type groove is equipped with balance boatswain chair (29) by bearing pin, and two steel ropes (7) link to each other with balance boatswain chair (29) two ends respectively.
6. monorail hoist is assisted with fuel manipulator crane by nuclear power plant as claimed in claim 1, it is characterized in that: described rope guide (6) links to each other with raising legs (1) by support, and push down roller steel wire rope (7) by a round steel, on rope guide (6) support, limit switch is installed.
7. nuclear power plant as claimed in claim 3 is characterized in that with the auxiliary monorail hoist of fuel manipulator crane: be equipped with and be used to monitor the hoisting speed of lift system and the cam limit switch and the encoder component (16) of hoisting depth promoting transmission device retarder (18) slow-speed shaft side.
CN 201220685559 2012-12-12 2012-12-12 Auxiliary monorail hoist of refueling machine for nuclear power plant CN203079554U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220685559 CN203079554U (en) 2012-12-12 2012-12-12 Auxiliary monorail hoist of refueling machine for nuclear power plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220685559 CN203079554U (en) 2012-12-12 2012-12-12 Auxiliary monorail hoist of refueling machine for nuclear power plant

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Publication Number Publication Date
CN203079554U true CN203079554U (en) 2013-07-24

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105621259A (en) * 2014-10-31 2016-06-01 无锡晟欧船舶设备有限公司 Improved moving suspension device
CN105621261A (en) * 2014-10-31 2016-06-01 无锡晟欧船舶设备有限公司 Rail type material lifting device
CN105621036A (en) * 2014-10-31 2016-06-01 无锡晟欧船舶设备有限公司 Movable hanging device
CN106458535A (en) * 2014-05-30 2017-02-22 株式会社开道 Hook block and rope hoist

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106458535A (en) * 2014-05-30 2017-02-22 株式会社开道 Hook block and rope hoist
CN106458535B (en) * 2014-05-30 2018-04-17 株式会社开道 Buckle pulley and cable wire crane
US9950904B2 (en) 2014-05-30 2018-04-24 Kito Corporation Hook block and rope hoist
CN105621259A (en) * 2014-10-31 2016-06-01 无锡晟欧船舶设备有限公司 Improved moving suspension device
CN105621261A (en) * 2014-10-31 2016-06-01 无锡晟欧船舶设备有限公司 Rail type material lifting device
CN105621036A (en) * 2014-10-31 2016-06-01 无锡晟欧船舶设备有限公司 Movable hanging device

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