CN105905810B - A kind of ship unloaders drivers' cab safeties - Google Patents
A kind of ship unloaders drivers' cab safeties Download PDFInfo
- Publication number
- CN105905810B CN105905810B CN201610488107.4A CN201610488107A CN105905810B CN 105905810 B CN105905810 B CN 105905810B CN 201610488107 A CN201610488107 A CN 201610488107A CN 105905810 B CN105905810 B CN 105905810B
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- CN
- China
- Prior art keywords
- cab
- drivers
- guide rail
- safeties
- ship unloaders
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/52—Details of compartments for driving engines or motors or of operator's stands or cabins
- B66C13/54—Operator's stands or cabins
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ship Loading And Unloading (AREA)
Abstract
The invention discloses a kind of ship unloaders drivers' cab safeties, the safeties are used in ship unloaders drivers' cab, ship unloaders drivers' cab includes preceding crossbeam drivers' cab guide rail, crossbeam drivers' cab guide rail and drivers' cab driving wheel afterwards, the guide rail is I-steel guide rail, ship unloaders drivers' cab safeties include double meet and discuss, a pair of supporting plates, keep off rail gantry and block, double meet and discuss is symmetrically mounted on beside the both sides of preceding crossbeam drivers' cab guide rail, a pair of supporting plate correspondences are fixed on rear crossbeam drivers' cab guide rail both sides, rail gantry is kept off to install on the supporting plate by rotating axis component, block is arranged on above rear crossbeam drivers' cab guide rail on plate.The ship unloaders drivers' cab safeties that the present invention is provided directly brake the driving wheel of ship unloaders drivers' cab drive device from the source that ship unloaders drivers' cab is moved, solve existing ship unloaders drivers' cab safeties manufacturing cost high, install cumbersome, maintenance, maintenance inconvenience, application position is unreasonable, influences many technical problems such as the sensitivity of braking.
Description
Technical field
The invention belongs to hoisting machinery technical field, more particularly to a kind of ship unloaders drivers' cab safeties.
Background technology
At present, ship unloaders drivers' cab is driven by a set of drive device, is run on two guide rails of drivers' cab.Preceding crossbeam is kicked up
When, drivers' cab is run on rear crossbeam guide rail, if because maloperation or other reasons cause drivers' cab big beam-ends movement forward, very
Derailing is possible to, is caused a serious accident.It is to the protection scheme that drivers' cab is taken for this：Pacify on drivers' cab top drive support
Collision block is filled, is set on preceding crossbeam and a pulley and a set of stopping means is set on a bearing, rear crossbeam.Kicked up in preceding crossbeam
When, the block connected by steel wire rope drops to and the collision block same level position at the top of drivers' cab.Though the protection scheme is feasible,
But manufacturing cost is high, portion's set of installation is more and cumbersome, and wire rope fiction drive inconvenience, application position are not quite reasonable, influences in addition
The sensitivity of braking.
The content of the invention
The purpose of the present invention be to overcome above-mentioned the deficiencies in the prior art there is provided a kind of ship unloaders drivers' cab safeties,
The safeties are braked from the source that drivers' cab is moved, the driving wheel of direct brake(s)man room drive device.
To achieve the above object, the present invention uses following technical proposals：
A kind of ship unloaders drivers' cab safeties, including it is double meet and discuss, a pair of supporting plates, gear rail gantry and block, it is described double to touch
Before head is symmetrically mounted on beside the both sides of crossbeam drivers' cab guide rail, the pair of supporting plate correspondence is fixed on rear crossbeam drivers' cab and led
On rail both sides, the gear rail gantry is arranged in the supporting plate by rotating axis component, and the block is arranged on rear crossbeam drivers' cab
Above guide rail on plate.
Preferably, the gear rail gantry includes being provided with groove in the middle of baffle plate, a pair of otic placodes and a pair of pressing plates, the baffle plate, preceding big
The bottom of baffle plate is held no more than below I-steel guide rail when beam is packed up, and the pair of otic placode is symmetrically fixedly connected on the gear
On plate, the pair of described pair of pressing plate correspondence is met and discussed on the relevant position of the baffle plate, between the pair of pressing plate
Distance with it is described it is double the distance between meet and discuss it is consistent.
Preferably, the rotating axis component is included in return bend, bushing, rotating shaft, screw and clasp joint formula oil nozzle, the supporting plate
The axis hole that aperture is more than return bend external diameter is machined with, the return bend passes through the shaft hole sleeve in the supporting plate, described time
Tube two ends process the circular hole of certain depth, and the diameter of the circular hole is more than in the internal diameter of the return bend, the return bend
Between be drilled with screwed hole, the clasp joint formula oil nozzle is arranged on the auger shell pit in the middle of the return bend, the end chi of the bushing
The size of very little correspondence return bend two ends circular hole, the bushing is inserted and then is installed in described respectively from the two ends of the return bend
Leave gap between the two ends of return bend, and two bushings, the gap just against the screwed hole in the middle of the return bend, from
The lubricating oil that the clasp joint formula oil nozzle enters in the return bend can infiltrate the bushing, and the rotating shaft passes through the bushing quilt
It is enclosed in the return bend, the two ends of the rotating shaft are with screwed hole is drilled with, and the pair of otic placode corresponding sides, which are also matched somebody with somebody, is drilled with screwed hole,
The rotating shaft is fixedly connected by the screw with the otic placode.
Preferably, when preceding crossbeam is lifted, the gear rail gantry is fallen, and the baffle plate is blocked by the block, drivers' cab driving
Wheel stops movement when encountering the baffle plate, when preceding crossbeam is put down, and double meet and discuss keeps off the pressing plate of rail gantry described in top pressure, make gear rail gantry
Correct position is rotated to, drivers' cab is normally run.
Preferably, it is provided with the supporting plate on the first limit switch, the pressing plate and the second limit switch is installed, when
When preceding crossbeam is lifted, the first limit switch in the gear rail gantry contact supporting plate is limited in the first extreme position, current big
When beam is put down, the second limit switch that the gear rail gantry is contacted on the pressing plate is limited in the second extreme position.
Preferably, first extreme position is that the baffle plate is spacing perpendicular to the position of I-steel guide rail, described second
For position of the baffle plate parallel to I-steel guide rail.
Preferably, the lower end of the supporting plate is provided with breach with I-steel guide rail junction, when current crossbeam is put down, preceding big
Beam drivers' cab guide rail agrees with rear crossbeam drivers' cab guide rail in the indentation, there.
Preferably, the pressing plate end is transition circle arcuation, and double positions contacted with the pressing plate of meeting and discussing are in ball
Shape.
Preferably, the size of the groove is bigger than I-steel guide rail width dimensions, and the height of the block is at least described
5 times of gap between groove edge and I-steel guide rail.
Preferably, the pair of otic placode is square steel plate, and the pair of otic placode is symmetrically welded on the baffle plate.
The beneficial effects of the invention are as follows, occupy little space, low manufacture cost, without artificial operation, easy to maintenance, Neng Gouhe
The existing ship unloaders drivers' cab safeties manufacturing cost of solution of reason is high, installs cumbersome, maintenance, maintenance inconvenience, and application position is not
Rationally, the problems such as sensitivity of influence braking.
Brief description of the drawings
Fig. 1 is ship unloaders drivers' cab safeties view when preceding crossbeam is lifted in the present invention；
Fig. 2 is ship unloaders drivers' cab safeties view when preceding crossbeam is fallen in the present invention；
Fig. 3 is ship unloaders drivers' cab safeties schematic top plan view；
Fig. 4 is the schematic cross-sectional view of A-A rotating axis components in Fig. 3；
Fig. 5 is ship unloaders drivers' cab safeties scheme of installation.
Wherein：1. pair meet and discuss, 2. supporting plates, 21. breach, 22. axis holes, 3. gear rail gantries, 301. baffle plates, 302. otic placodes,
303. pressing plates, 4. blocks, 5. return bends, 51. circular holes, 52. screwed holes, 6. bushings, 7. rotating shafts, 71. screwed holes, 8. screws, 9.
Clasp joint formula oil nozzle, 10. first limit switches, crossbeam drivers' cab guide rail before 11., crossbeam drivers' cab guide rail, 13. drivers' cabs after 12.
Driving wheel, 14. second limit switches, 15. grooves, 100. ship unloaders drivers' cab safeties.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but the present invention is not limited to
These embodiments.
Fig. 1 is ship unloaders drivers' cab safeties view when preceding crossbeam is lifted in the present invention；Fig. 2 is in the present invention
Ship unloaders drivers' cab safeties view when preceding crossbeam is fallen；Fig. 3 is that ship unloaders drivers' cab safeties overlook signal
Figure.As shown in Figure 1, Figure 2 and Figure 3, a kind of ship unloaders drivers' cab safeties 100, in ship unloaders drivers' cab.The unloading
Machine drivers' cab includes preceding crossbeam drivers' cab guide rail 11, rear crossbeam drivers' cab guide rail 12 and drivers' cab driving wheel 13, and the guide rail is equal
For I-steel guide rail.A kind of ship unloaders drivers' cab safeties 100, including it is double meet and discuss 1, a pair of supporting plates 2, gear rail gantries 3 and gear
Block 4.It is double meet and discuss 1 be symmetrically mounted on before crossbeam drivers' cab guide rail 11 both sides beside, a pair of correspondences of supporting plates 2 are fixed on rear crossbeam
On the both sides of drivers' cab guide rail 12, wherein Fig. 1 and Fig. 2 only show the structure chart of side, and lower end and the I-steel guide rail of supporting plate 2 connect
Meet place and be provided with breach 21, when current crossbeam is put down, preceding crossbeam drivers' cab guide rail 11 is with rear crossbeam drivers' cab guide rail 12 in breach 21
Agree with place.Rail gantry 3 is kept off to be arranged in supporting plate 2 by rotating axis component.Keeping off rail gantry 3 includes baffle plate 301, a pair of otic placodes 302 and one
To pressing plate 303.Groove 15 is wherein provided with the middle of baffle plate 301, the dimension D of the groove 15 should be bigger than I-steel guide rail width dimensions d,
I.e. the edge of groove 15 leaves gap r with I-steel guide rail.When preceding crossbeam is packed up, as shown in figure 1, the bottom of baffle plate 301 does not surpass
Cross below I-steel guide rail and hold.A pair of otic placodes 302 are square steel plate, and are symmetrically welded on baffle plate 301.A pair of pressing plates
303 correspondences are double to be met and discussed and 1 is arranged on the relevant position of baffle plate 301, i.e., the distance between a pair of pressing plates 303 are met and discussed between 1 with double
Distance it is consistent, the end of pressing plate 303 is set to transition circle arcuation, and double 1 positions contacted with pressing plate 303 of meeting and discussing are in spherical shape,
So be easy to it is double meet and discuss 1 a pair of pressing plates 303 of extruding when, gear rail gantry 3 preferably rotates.Block 4 is led installed in rear crossbeam drivers' cab
Above rail 12 on plate.The height of block 4 is at least 5 times of gap r between the edge of groove 15 and I-steel guide rail, so could be really
Guarantor blocks rail gantry 3, it is kept plumbness.
As shown in figure 1, when preceding crossbeam is lifted, gear rail gantry 3 is fallen, and baffle plate 301 is blocked by block 4, drivers' cab driving wheel 13
Stop movement when encountering baffle plate 301.As shown in Fig. 2 when preceding crossbeam is put down, double 1 top pressures of meeting and discussing keep off the pressing plate 303 of rail gantry 3, make gear
Rail gantry 3 rotates to correct position, and drivers' cab is normally run.The first limit switch 10 being wherein arranged in supporting plate 2 and installation
The second limit switch 14 on pressing plate 303 plays position-limiting action when preceding crossbeam is lifted and put down respectively.Job site, passes through
Adjustment gear rail gantry 3 installation position, when current crossbeam is lifted, gear rail gantry 3 contacted with the first limit switch 10 in supporting plate 2 and then
Be limited in the first extreme position, the first extreme position be baffle plate 301 perpendicular to the position of I-steel guide rail, current crossbeam is put down
When, gear rail gantry 3 contacts with the second limit switch 14 on pressing plate 303 and then is limited in the second extreme position, and second spacing is
Position of the baffle plate 301 parallel to I-steel guide rail.
Fig. 4 is A-A rotating axis component schematic cross-sectional views in Fig. 3.As shown in figure 4, rotating axis component include return bend 5, bushing 6,
Rotating shaft 7, screw 8, clasp joint formula oil nozzle 9.The axis hole 22 that aperture is more than the external diameter of return bend 5 is machined with supporting plate 2, return bend 5 is worn
The axis hole 22 of two pieces of supporting plates 2 is crossed to be enclosed in two pieces of supporting plates 2.Gear rail gantry 3 is connected in supporting plate 2 by rotating shaft 7.Return
The two ends of tube 5 process the circular hole 51 of certain depth, and the wherein diameter of circular hole 51 is more than in the middle of the internal diameter of return bend 5, return bend 5 and bored
There is screwed hole 52, clasp joint formula oil nozzle 9 is arranged on the middle auger shell pit 52 of return bend 5.The end size correspondence return bend of bushing 6
The size of 5 two ends circular holes 51, bushing 6 inserts and then is installed in the two ends of return bend 5 respectively from the two ends of return bend 5, and two
Left between individual bushing 6 at gap, this gap just against the screwed hole 52 in the middle of return bend 5, i.e., also with the phase of clasp joint formula oil nozzle 9
Right, the lubricating oil entered from clasp joint formula oil nozzle 9 in return bend 5 can infiltrate bushing 6.Rotating shaft 7 is enclosed in return bend through bushing 6
In 5, and the two ends of rotating shaft 7, with screwed hole 71 is drilled with, a pair of tops of otic placode 302 of correspondence are also with screwed hole is drilled with, and rotating shaft 7 passes through two ends
Screwed hole 71 coordinate with screw 8 and be fixed in corresponding otic placode 302.Bushing 6 uses ZQSn5-5-5 material manufactures,
The friction between bushing 6 and rotating shaft 7 can effectively be reduced in the presence of lubricating oil, increased the service life.Screw 8, clasp joint formula oil
Mouth 9 is standard component.The rotating axis component has good lubrication, and gear rail gantry 3 can be made more smooth when rotated, reduces
Noise.
Fig. 5 show ship unloaders drivers' cab safeties scheme of installation.Drivers' cab track is generally two, noted earlier
Ship unloaders drivers' cab safeties 100 it is general on every ship unloaders set two sets, all relevant ship unloaders drivers' cabs insure
The discussion of device 100 is illustrated to wherein a set of, and involved structure number is all based on a set of ship unloaders driver
What room safeties 100 were drawn.
The principle of the invention is simple, main using front and rear crossbeam movement relation, the installation insurance device at front and rear crossbeam hinge
Stop the motion of drivers' cab driving wheel, so as to protect drivers' cab.Lifting and putting down with preceding crossbeam, gear rail gantry 3 is automatically real
Now stop drivers' cab and the expected effects for not influenceing drivers' cab normally to run.Specifically, when preceding crossbeam is lifted, gear rail gantry 3 falls
Under, the baffle plate 301 in gear rail gantry 3 is blocked by block 4, if drivers' cab is moved under special circumstances, drivers' cab driving wheel 13 will
Encounter baffle plate 301, stop movement.When preceding crossbeam is put down, double 1 top pressures of meeting and discussing keep off a pair of pressing plates 303 of rail gantry 3, then keep off rail gantry 3
Correct position is rotated to, drivers' cab is normally run.Limit switch 10 in supporting plate 2 and on pressing plate 303
Limit switch 14 respectively when preceding crossbeam is lifted and put down from position-limiting action, the state of whole safeties can in real time slap by driver
Hold.Rotating axis component of the rail gantry 3 in supporting plate 2, which will be kept off, can use oil lubrication, and it can keep ship unloaders safeties long
Time is effectively run.Connected between rotating shaft 7 and a pair of otic placodes 302 with screw 8, dismounting, it is easy to maintenance.
The part do not addressed in the present invention uses or used for reference prior art and can be achieved.
In the description of the invention, it is to be understood that term " centre ", " on ", " under ", "front", "rear", " vertical ",
The orientation or position relationship of the instruction such as " level ", " top ", " interior ", " outer " are based on orientation shown in the drawings or position relationship, only
It is to be described for the ease of the description present invention with simplified, rather than indicates or imply that the device or element of meaning must be with specifically
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, not to present invention protection model
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deform still within protection scope of the present invention that creative work can make.
Claims (9)
1. a kind of ship unloaders drivers' cab safeties, it is characterized in that, including it is double meet and discuss, a pair of supporting plates, gear rail gantry and block, institute
State double meet and discuss to be symmetrically mounted on beside the both sides of preceding crossbeam drivers' cab guide rail, the pair of supporting plate correspondence is fixed on rear crossbeam department
On the guide rail both sides of machine room, the gear rail gantry is arranged in the supporting plate by rotating axis component, and the block is arranged on rear crossbeam
Above drivers' cab guide rail on plate；The gear rail gantry includes being provided with the middle of baffle plate, a pair of otic placodes and a pair of pressing plates, the baffle plate
Groove, the bottom of baffle plate is held no more than below I-steel guide rail when preceding crossbeam is packed up, and the pair of otic placode is symmetrically fixedly connected
On the baffle plate, the pair of described pair of pressing plate correspondence is met and discussed on the relevant position of the baffle plate, the pair of pressure
The distance between plate with it is described it is double the distance between meet and discuss it is consistent.
2. ship unloaders drivers' cab safeties as claimed in claim 1, it is characterized in that, the rotating axis component include return bend,
The axis hole that aperture is more than return bend external diameter, described time are machined with bushing, rotating shaft, screw and clasp joint formula oil nozzle, the supporting plate
Tube is through the shaft hole sleeve in the supporting plate, and the return bend two ends process the circular hole of certain depth, the circular hole
Diameter is more than the internal diameter of the return bend, and the centre of the return bend is drilled with screwed hole, and the clasp joint formula oil nozzle is arranged on described
On auger shell pit in the middle of return bend, the size of the end size of bushing correspondence return bend two ends circular hole, the bushing from
The two ends of the return bend are inserted and then are installed in the two ends of the return bend respectively, and leave gap between two bushings,
The gap is just against the screwed hole in the middle of the return bend, the lubrication entered from the clasp joint formula oil nozzle in the return bend
Oil can infiltrate the bushing, and the rotating shaft is enclosed in the return bend through the bushing, and the two ends of the rotating shaft are with brill
There is screwed hole, the pair of otic placode corresponding sides are also with screwed hole is drilled with, and the screw, which fixes the rotating shaft and the otic placode, to be connected
Connect.
3. ship unloaders drivers' cab safeties as claimed in claim 2, it is characterized in that, when preceding crossbeam is lifted, the gear rail gantry
Fall, the baffle plate is blocked by the block, drivers' cab driving wheel stops movement when encountering the baffle plate, when preceding crossbeam is put down,
Double meet and discuss keeps off the pressing plate of rail gantry described in top pressure, gear rail gantry is rotated to correct position, drivers' cab is normally run.
4. ship unloaders drivers' cab safeties as claimed in claim 3, it is characterized in that, the first limit is installed in the supporting plate
Second limit switch is installed on bit switch, the pressing plate, when current crossbeam is lifted, the in gear rail gantry contact supporting plate
One limit switch is limited in the first extreme position, when current crossbeam is put down, and the gear rail gantry contacts second on the pressing plate
Limit switch is limited in the second extreme position.
5. ship unloaders drivers' cab safeties as claimed in claim 4, it is characterized in that, first extreme position is the gear
Plate is perpendicular to the position of I-steel guide rail, and described second is spacing for position of the baffle plate parallel to I-steel guide rail.
6. ship unloaders drivers' cab safeties as claimed in claim 1, it is characterized in that, the lower end of the supporting plate and I-steel
Rail attachment point is provided with breach, and when current crossbeam is put down, preceding crossbeam drivers' cab guide rail is with rear crossbeam drivers' cab guide rail described
Indentation, there is agreed with.
7. ship unloaders drivers' cab safeties as claimed in claim 1, it is characterized in that, the pressing plate end is transition arc
Shape, double positions contacted with the pressing plate of meeting and discussing are in spherical shape.
8. ship unloaders drivers' cab safeties as claimed in claim 1, it is characterized in that, the size of the groove compares I-steel guide rail
Width dimensions are big, and the height of the block is at least 5 times of gap between the groove edge and I-steel guide rail.
9. ship unloaders drivers' cab safeties as claimed in claim 1, it is characterized in that, the pair of otic placode is square steel
Plate, the pair of otic placode is symmetrically welded on the baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610488107.4A CN105905810B (en) | 2016-06-28 | 2016-06-28 | A kind of ship unloaders drivers' cab safeties |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610488107.4A CN105905810B (en) | 2016-06-28 | 2016-06-28 | A kind of ship unloaders drivers' cab safeties |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105905810A CN105905810A (en) | 2016-08-31 |
| CN105905810B true CN105905810B (en) | 2017-07-21 |
Family
ID=56759832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610488107.4A Active CN105905810B (en) | 2016-06-28 | 2016-06-28 | A kind of ship unloaders drivers' cab safeties |
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| CN (1) | CN105905810B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107416547B (en) * | 2017-05-23 | 2020-02-28 | 五冶集团上海有限公司 | Anti-collision method for dismantling cantilever girder of ship unloader |
| CN108313876B (en) * | 2018-03-20 | 2023-08-11 | 曹妃甸港矿石码头股份有限公司 | Movable ship unloader travel stop device and stop method thereof |
| CN109160420A (en) * | 2018-10-31 | 2019-01-08 | 青岛海西重机有限责任公司 | A kind of crane suspended-type movable drivers' cab |
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| CN102241366A (en) * | 2010-05-13 | 2011-11-16 | 孙进利 | Hydraulic buffer type travelling crane stopping device |
| CN202414980U (en) * | 2012-01-06 | 2012-09-05 | 金万席 | Buffering block of rail crane |
| CN103274301A (en) * | 2013-04-27 | 2013-09-04 | 江苏工力重机有限公司 | Protective device for driver's cage of bridge-type grab ship-unloader |
| CN204057744U (en) * | 2014-09-02 | 2014-12-31 | 河南重工起重机集团有限公司 | A kind of monkey inhibiting device |
| CN205687423U (en) * | 2016-06-28 | 2016-11-16 | 青岛海西重机有限责任公司 | A kind of ship unloaders drivers' cab safety |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101659079B1 (en) * | 2009-10-14 | 2016-09-23 | 주식회사 포스코 | Collision prevention for continuous ship unloader |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201201861Y (en) * | 2008-03-21 | 2009-03-04 | 上海海镭激光科技有限公司 | Wheel walking protection alarming device for gantry crane |
| CN102241366A (en) * | 2010-05-13 | 2011-11-16 | 孙进利 | Hydraulic buffer type travelling crane stopping device |
| CN202414980U (en) * | 2012-01-06 | 2012-09-05 | 金万席 | Buffering block of rail crane |
| CN103274301A (en) * | 2013-04-27 | 2013-09-04 | 江苏工力重机有限公司 | Protective device for driver's cage of bridge-type grab ship-unloader |
| CN204057744U (en) * | 2014-09-02 | 2014-12-31 | 河南重工起重机集团有限公司 | A kind of monkey inhibiting device |
| CN205687423U (en) * | 2016-06-28 | 2016-11-16 | 青岛海西重机有限责任公司 | A kind of ship unloaders drivers' cab safety |
Also Published As
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|---|---|
| CN105905810A (en) | 2016-08-31 |
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