CN207632394U - A kind of polar crane lifting mechanism with off-axis defencive function - Google Patents
A kind of polar crane lifting mechanism with off-axis defencive function Download PDFInfo
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- CN207632394U CN207632394U CN201721805110.0U CN201721805110U CN207632394U CN 207632394 U CN207632394 U CN 207632394U CN 201721805110 U CN201721805110 U CN 201721805110U CN 207632394 U CN207632394 U CN 207632394U
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- axis
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- end plate
- reel
- defencive function
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Abstract
The utility model discloses a kind of polar crane lifting mechanisms with off-axis defencive function, including：The off-axis protection group being located under the end plate at reel group both ends; off-axis protection group includes two minute surface settings and supports the off-axis protective device of the end plate; off-axis protective device includes the bearing put together on by the first bolt group on trolley frame; it is fixed on the axis on bearing by axle end baffle plate and the second bolt group; the support wheel being mounted on an axle by axle sleeve; the holder being welded on bearing; by the first limit switch that third bolt group is rack-mount, the contact of the first limit switch is located at the lower section of end plate and there are gaps between end plate；Drive system；Two steel wire ropes；And translation mechanism.The utility model is simple and compact for structure, and manufacture, installation and adjustment are very convenient；It improves ring and hangs safety；After reel group off-axis, it can detect in time and provide feedback signal, help to improve the reliability that ring is hung.
Description
Technical field
The utility model is related to handling machinery industry, go in ring especially suitable for handling Dangerous Load in nuclear power station
On heavy-duty machine, it is ensured that lifting mechanism reliable, safety can support Dangerous Load.
Background technology
With the progress of China's Nuclear Electricity, the continuous dilatation of nuclear power station unit station, used in nuclear power station polar crane is (below
Abbreviation ring is hung) key equipment as project installation and major overhaul, product constantly upgrades, proposed to safety more next
Higher requirement, former two generation rings hang the bearing that the reel off-axis defencive function of lifting mechanism only leans on several blocks of steel plates to constitute, cannot
Nowadays three generations's Nuclear Safety requirement is adapted to, is needed to improve.
In existing two generations ring hangs technology, the support of lifting mechanism reel off-axis is as shown in Figs. 1-3, the end plate in reel both sides
Under arrange the simple support 1` being made of steel plate, certain barrier effect can be only played when reel falls, and do not examine
Device is surveyed, feedback signal can not be provided.
Utility model content
In view of the above problems, present applicant proposes corresponding solution, by being arranged at lifting mechanism reel end plate
Support wheel and bearing, and limit switch is installed, it solves the problems, such as the detection after lifting mechanism reel off-axis and support, can avoid
Reel and load are fallen, and loss is reduced, and are increased safety, are of great significance.The technological means that the utility model uses is as follows：
A kind of polar crane lifting mechanism with off-axis defencive function, including：It is located at reel group both ends
Off-axis protection group under end plate, the off-axis protection group include two minute surface settings and the off-axis of the end plate are supported to protect dress
It sets, the off-axis protective device includes the bearing put together on by the first bolt group on trolley frame, supports the entire off-axis
Protective device is fixed on the axis on the bearing by axle end baffle plate and the second bolt group, on the shaft by axle sleeve installation
Support wheel, the support wheel can be dynamic around the shaft rotation, once the reel group off-axis occurs, when the reel group declines, such as
Fruit is still rotating, can reel group described in the rotation stopping by the support wheel roll out the trolley frame along the bearing and fall,
The holder being welded on the bearing, by third bolt group installation the first limit switch on the bracket, described first
The contact of limit switch is located at the lower section of the end plate and between the end plate there are gap, that is, when installing described in the first limit
The contact of switch retains certain interval, when falling after the reel group off-axis, first limit switch with the end plate
Contact is compressed into a certain degree, triggering alarm, gives operation console feedback, while the end plate can be by the support wheel and described
The associated components such as axis support, and the reel group and load is avoided to fall.
Drive system, including motor, the output end of the motor by the input axis connection of shaft coupling and speed reducer,
The both ends of the input shaft of the speed reducer are equipped with brake group, and the brake group includes two service brakes and a peace
Full application of brake device can guarantee effective brake load, avoid intense impact, the input of the output end of the speed reducer and the reel group
End connection；
One end of two steel wire ropes, the steel wire rope is fixed in the reel group, and the other end sequentially passes through lifting hook pulley
It is clockwise by the reel group in group, transition pulley blocks and fixed pulley group and the equalizer bar being fixed in the fixed pulley group
Or rotate counterclockwise, two steel wire ropes are moved into or are laid out on the grooving of the reel group, realize the lifting hook pulley group
Rise or fall, the equalizer bar is equipped with disconnected rope and monitors limit switch, and the both ends of the equalizer bar are respectively equipped with support institute
State the hydraulic damper of equalizer bar, it is ensured that in the case where steel cable is broken, generated impact is by the hydraulic pressure
Damper absorbs, and another steel cable remains to support load and impact without apparent, realizes load lift in case of a fault,
Disconnected rope situation can be timely feedbacked operator by the disconnected rope monitoring limit switch；
With the translation mechanism for driving the relatively described trolley frame sliding of the fixed pulley group.
Further include by multiple travel switches and transmission chain detection, lifting altitude detect, wire cable rupture detects the peace formed
Full caging system is, it can be achieved that the functions such as deceleration, stopping of lifted load.
The lower rope side of the reel group is equipped with anti-stacked winding apparatus, and the anti-stacked winding apparatus includes divider and multiple is fixed on institute
The column of the divider is stated on trolley frame and is used to support, the divider is equipped with there are certain intervals with the reel group outer wall
Gear rope pipe, the column is equipped with the second limit switch, when lap wound or wrong slot occur for the steel wire rope in the reel group, institute
Divider rotation is stated, the tentacle on the divider touches second limit switch, sends out signal, the brake group action.
The bottom of the lifting hook pulley group uses the double hook with lifting loads circular hole, and is equipped with Anti-hook releasing device.
The translation mechanism includes four groups of loaded contact rollers being mounted below the fixed pulley group, and the loaded contact rollers pass through
A set of screw device dragging with electric drive.The fixed pulley group is slided relative to the trolley frame
It moves, it is ensured that the lifting hook pulley group can have adjustment amount perpendicular to the trolley track direction.It, can be true by the above measure
Protect the dead zone-eliminating in handling load.
The polar crane lifting mechanism with off-axis defencive function of the utility model, by the reel group two
Support wheel and bearing are set under the end plate at end, and the first limit switch is installed, solves the detection after reel group off-axis and branch
Support problem, simple in structure, manufacture installation and adjusts very convenient, effectively avoids because reel group off-axis leads to reel group and load
The accident that lotus falls, greatly improves safety and reliability.
The utility model has the following advantages：
1, simple and compact for structure, manufacture, installation and adjustment are very convenient；
2, it improves ring and hangs safety；
3, after reel group off-axis, it can detect in time and provide feedback signal, help to improve the reliability that ring is hung.
The utility model can be widely popularized in fields such as handling machineries based on the above reasons.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is done simply to introduce, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is that existing two generations ring hangs lifting mechanism reel off-axis support schematic diagram.
Fig. 2 is sectional view along A-A in Fig. 1.
Fig. 3 is B-B direction sectional view in Fig. 1.
Fig. 4 is the polar crane lifting mechanism with off-axis defencive function in specific embodiment of the present utility model
Front view.
Fig. 5 is the polar crane lifting mechanism with off-axis defencive function in specific embodiment of the present utility model
Vertical view.
Fig. 6 is off-axis protection group schematic diagram in specific embodiment of the present utility model.
Fig. 7 is Fig. 6 side views.
Fig. 8 be in Fig. 7 C-C to sectional view.
Fig. 9 is II enlarged diagram in Fig. 8.
Figure 10 is I enlarged diagram in Fig. 7.
Figure 11 is the vertical view of Fig. 7.
Figure 12 is the vertical view of drive system in specific embodiment of the present utility model.
Figure 13 is the front view of anti-stacked winding apparatus in specific embodiment of the present utility model.
Figure 14 is the side view of anti-stacked winding apparatus in specific embodiment of the present utility model.
Figure 15 is III enlarged diagram in Figure 14.
Figure 16 is the front view of fixed pulley group in specific embodiment of the present utility model.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
As shown in Fig. 1-Figure 16, a kind of polar crane lifting mechanism with off-axis defencive function, including：Position respectively
Off-axis protection group under the end plate 2 at 1 both ends of reel group, the off-axis protection group include described in two minute surface settings and support
The off-axis protective device 3 of end plate 2, the off-axis protective device 3 include the bearing put together on by the first bolt group 4 on trolley frame
5, the axis 8 on the bearing 5 is fixed on by axle end baffle plate 6 and the second bolt group 7, is mounted on the axis 8 by axle sleeve 9
Support wheel 10, the holder 11 being welded on the bearing 5, the first limit being mounted on by third bolt group 12 on the holder 11
Bit switch 13, the contact of first limit switch 13 be located at the lower section of the end plate 2 and between the end plate 2 there are
Gap；
The output end of drive system 14, including motor 15, the motor 15 passes through shaft coupling 16 and speed reducer 17
Axis connection is inputted, the both ends of the input shaft of the speed reducer 17 are equipped with brake group 18, and the brake group 18 includes two
Service brake and a deadman's brake, the output end of the speed reducer 17 are connect with the input terminal of the reel group 1；
One end of two steel wire ropes 19, the steel wire rope 19 is fixed in the reel group 1, and the other end sequentially passes through suspension hook
It is described flat in pulley blocks 20, transition pulley blocks 21 and fixed pulley group 22 and the equalizer bar 23 being fixed in the fixed pulley group 22
Balance beam 23 is equipped with disconnected rope and monitors limit switch 24, and the both ends of the equalizer bar 23 are respectively equipped with the liquid for supporting the equalizer bar 23
Press damper 25；
With the translation mechanism 26 for driving the relatively described trolley frame sliding of the fixed pulley group 22.
Further include by multiple travel switches and transmission chain detection, lifting altitude detect, wire cable rupture detects the peace formed
Full caging system 27.
The lower rope side of the reel group 1 is equipped with anti-stacked winding apparatus 28, and the anti-stacked winding apparatus 28 includes divider 29 and multiple
It is fixed on the trolley frame and is used to support the column 30 of the divider 29, the divider 29 is equipped with and the reel group 1
There are the gear rope pipe 31 of certain interval, the columns 30 to be equipped with the second limit switch 32, the steel in the reel group 1 for outer wall
When lap wound or wrong slot occur for cord, the divider 29 rotates, and the tentacle 33 on the divider 29 touches second limit switch
32, signal is sent out, the brake group 18 acts.
The bottom of the lifting hook pulley group 20 uses the double hook with lifting loads circular hole, and is equipped with Anti-hook releasing device.
The translation mechanism 26 includes four groups of loaded contact rollers being mounted below the fixed pulley group 22, the loaded contact rollers
Pass through a set of screw device dragging with electric drive.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (5)
1. a kind of polar crane lifting mechanism with off-axis defencive function, which is characterized in that including：It is located at reel
Off-axis protection group under the end plate at group both ends, the off-axis protection group include two minute surface settings and support the disconnected of the end plate
Axis protective device, the off-axis protective device include the bearing put together on by the first bolt group on trolley frame, are kept off by shaft end
Plate and the second bolt group are fixed on the axis on the bearing, by the support wheel of axle sleeve installation on the shaft, are welded on described
Holder on bearing installs the first limit switch on the bracket by third bolt group, first limit switch
Contact is located at the lower section of the end plate and there are gaps between the end plate；
Drive system, including motor, the output end of the motor are described by the input axis connection of shaft coupling and speed reducer
The both ends of the input shaft of speed reducer are equipped with brake group, and the brake group includes two service brakes and a safety system
Dynamic device, the output end of the speed reducer are connect with the input terminal of the reel group；
One end of two steel wire ropes, the steel wire rope is fixed in the reel group, and the other end sequentially passes through lifting hook pulley group, mistake
It crosses pulley blocks and fixed pulley group and on the equalizer bar that is fixed in the fixed pulley group, the equalizer bar is equipped with disconnected rope monitoring limit
Bit switch, the both ends of the equalizer bar are respectively equipped with the hydraulic damper for supporting the equalizer bar；
With the translation mechanism for driving the relatively described trolley frame sliding of the fixed pulley group.
2. the polar crane lifting mechanism according to claim 1 with off-axis defencive function, it is characterised in that：Also
Include by multiple travel switches and transmission chain detection, lifting altitude detect, wire cable rupture detects the safe spacing system formed.
3. the polar crane lifting mechanism according to claim 1 with off-axis defencive function, it is characterised in that：Institute
The lower rope side for stating reel group is equipped with anti-stacked winding apparatus, and the anti-stacked winding apparatus includes divider and multiple is fixed on the trolley frame
And it is used to support the column of the divider, the divider is equipped with the reel group outer wall there are the gear rope pipe of certain interval,
The column is equipped with the second limit switch.
4. the polar crane lifting mechanism according to claim 1 with off-axis defencive function, it is characterised in that：Institute
The bottom for stating lifting hook pulley group uses the double hook with lifting loads circular hole, and is equipped with Anti-hook releasing device.
5. the polar crane lifting mechanism according to claim 1 with off-axis defencive function, it is characterised in that：Institute
It includes four groups of loaded contact rollers being mounted below the fixed pulley group to state translation mechanism, and the loaded contact rollers are electronic by a set of band
The screw device of driving drags.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721805110.0U CN207632394U (en) | 2017-12-21 | 2017-12-21 | A kind of polar crane lifting mechanism with off-axis defencive function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721805110.0U CN207632394U (en) | 2017-12-21 | 2017-12-21 | A kind of polar crane lifting mechanism with off-axis defencive function |
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| Publication Number | Publication Date |
|---|---|
| CN207632394U true CN207632394U (en) | 2018-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721805110.0U Active CN207632394U (en) | 2017-12-21 | 2017-12-21 | A kind of polar crane lifting mechanism with off-axis defencive function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107934818A (en) * | 2017-12-21 | 2018-04-20 | 大连华锐重工集团股份有限公司 | A kind of polar crane lifting mechanism with off-axis defencive function |
-
2017
- 2017-12-21 CN CN201721805110.0U patent/CN207632394U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107934818A (en) * | 2017-12-21 | 2018-04-20 | 大连华锐重工集团股份有限公司 | A kind of polar crane lifting mechanism with off-axis defencive function |
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