CN105293111A - Secondary protection device for receiving plate of ship unloader - Google Patents
Secondary protection device for receiving plate of ship unloader Download PDFInfo
- Publication number
- CN105293111A CN105293111A CN201510871203.2A CN201510871203A CN105293111A CN 105293111 A CN105293111 A CN 105293111A CN 201510871203 A CN201510871203 A CN 201510871203A CN 105293111 A CN105293111 A CN 105293111A
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- China
- Prior art keywords
- steel rope
- splicing plate
- winch
- frame
- steel wire
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Abstract
The invention discloses a secondary protection device for a receiving plate of a ship unloader. The secondary protection device aims to overcome the shortcoming that if an existing cam limiter arranged on the ship unloader for controlling steel wire ropes on a roller of a winch to lift the receiving plate breaks down, the steel wire ropes will be snapped and the receiving plate will fall. A rope penetrating frame with the vertical face parallel with the center line of the roller is installed on one side of the roller, the steel wire ropes penetrate through the rope penetrating frame, and swing arms capable of swinging along with the vertical face are oppositely installed on the two sides of the vertical face, opposite to the roller, of the rope penetrating frame respectively. The rope penetrating frame is further provided with a limiting switch, and when wires, wound around the roller, of the steel wire ropes move excessively towards the two sides respectively, the limiting switch can push the swing arms to cut off power of the winch. When the wires, wound around the roller, of the steel wire ropes continuously and excessively move towards the winding side or the releasing side, the parts, in the rope penetrating frame, of the steel wire ropes forcibly push the swing arms to be deflected towards one side of the limiting switch and to touch one side of the limiting switch, and therefore the power of the winch can be cut off, the accident that the steel wire ropes are snapped and the receiving plate falls is prevented, and secondary protection is achieved.
Description
Technical field
The invention belongs to affiliated facility, specifically the device of secondary protection made by a kind of splicing plate for ship unloaders.
Background technology
Unloading shipping bulk goods with ship unloaders, is on harbour 1, use grab bucket 5 of unloading a ship to capture the material delivered in freighter 7 cabin as shown in Figure 1, and above the large funnel 9 being then transferred to ship unloaders, material drops down onto flow process Belt Conveying to stockyard, rear through large funnel 9.
Spilling in bulk goods is transported on the way for preventing grab bucket 5, generally in the side of bordering on the sea of the large funnel of ship unloaders 9, large-scale splicing plate 6 is installed, one end hinge joint of splicing plate 6 is arranged on large funnel 9 and borders on the sea the edge of side, and its other end is hung in column 1.1 side of ship unloaders by pulley 4 with steel rope 3 when not using.Operate winch 2 on ship unloaders after freighter 7 pulls in shore, the steel rope 3 be wrapped on cylinder 2.1 is led through pulley 4, is transferred the upper end of splicing plate 6, make splicing plate 6 be layered on grab bucket 5 and transport on the way, its plate face is basic concordant with the top of large funnel 9.Like this, grab bucket 5 pass on material time spill and all accept recovery by splicing plate 6.After having unloaded, restart winch 2, pack up near column 1.1, for the unloading of approaching of next freighter is prepared by steel rope 3 by splicing plate 6 is carried.
Pack up in the process of splicing plate 6 at winch 2, in order to prevent splicing plate 6 rise rise to vertex time, the cylinder 2.1 of winch 2 is also in rotation lay winding wire ropes 3, make steel rope 3 excessive by pulling force and the phenomenon of rushing to summit of generation fracture, cause splicing plate 6 out of control suddenly and fall, just must control the lifting altitude of splicing plate 6, namely when splicing plate 6 rise to do not hinder freighter approach stop correct position time, cylinder 2.1 will shut down.
The mode that cylinder 2.1 can be made automatically to shut down at present is, in cylinder 2.1 side of winch 2, the cam stop 8 be electrically connected with electric-control system is installed, when steel rope 3 pulls splicing plate 6 to arrive its extreme higher position, cam stop 8 action makes winch 2 power-off, the cylinder 2.1 silk rope 3 that stops operating also no longer upwards lifts splicing plate 6, thus avoid because splicing plate 6 loses the constrained force of steel rope 3 and fall, prevent generation and the development of accident.
But because terminal operation is in open air, poor working environment and changing unpredictably, cam stop 8 fault rate be in this environment is high.Cam stop 8 is once malfunctioning by the impact of external cause, and this defence line, road of protection splicing plate 6 is broken through, and winch 2 will occur and break steel rope 3 large-scale splicing plate 6 is fallen, cause hardly imaginable serious accident to occur.
Summary of the invention
Technical matters to be solved by this invention is, overcoming existing winch carrying receives splicing plate and limits the cam stop of its extreme higher position once malfunctioning, can because of excessively lift wire cable rupture is caused splicing plate is out of control falls, there is the shortcoming of serious accident, a kind of secondary protective device of ship unloaders splicing plate is provided.
In order to solve the problems referred to above that prior art exists, the present invention adopts following technical proposals to realize: the side of winch cylinder on ship unloaders, the wire rope handling frame of its facade and centre of the drum's line parallel is installed, space around the relative wire rope handling frame of the steel rope on cylinder facade is passed, in the facade both sides of wire rope handling frame subtend cylinder, be mounted opposite two swing arms can doing fan-shaped swing along facade, wire rope handling frame is also provided with: when the winding displacement that steel rope is wound around on cylinder moves excessive respectively to both sides, swing arm can be pushed and touch the limit switch making winch power-off.
The present invention also has following technical characteristic:
Described steel rope winding displacement moves excessively pushing swing arm and makes winch power-off, that the upper end of described two swing arms is mounted opposite the both sides being positioned at steel rope on the upper side frame of wire rope handling frame, the lower frame of wire rope handling frame is positioned at the nearly steel rope side of swing arm, be fixed with the reliable limiting stopper thereon of swing arm, limit switch is arranged on the side leaving steel rope lower frame being positioned at swing arm, when swing arm can touch limit switch to when leaving the direction beat of limiting stopper;
Described swing arm, be made up of inner webs and outer webs and flex point, flex point is upwards supported on the upper side frame of wire rope handling frame, and its inner webs is positioned at the side of nearly steel rope, and outer webs is positioned at the weight arm leaving steel rope side;
On the bottom of described inner webs and described lower frame between nearly middle side, extension spring is installed;
The side of the nearly steel rope side of described inner webs is cancave cambered surface.
In work, if control the lift of splicing plate pack up the cam stop of height malfunctioning after, the winding displacement of steel rope on winch cylinder moves and continues to move, when the winding displacement of steel rope moves excessive, the steel rope be in wire rope handling frame just pushes swing arm, and swing arm is done fan-shaped swing along the facade of described wire rope handling frame to side and touched limit switch, and limit switch makes winch power-off cylinder stop operating, steel rope can not continue mobile on cylinder, and splicing plate also just stops action.
Advantage of the present invention and good effect are, after the cam stop of installing when the cylinder side of winch is malfunctioning, the steel rope winding displacement that winch cylinder is wound around can continue the side excessively movement to winding or release, the winding displacement of now steel rope movement pushes swing arm by force to the Lateral Runout being provided with limit switch in wire rope handling frame, touch limit switch and make the power-off of winch cylinder and stall, steel rope also would not continue to be wound around or release on cylinder, the steel rope accident that splicing plate get out of hand falls because being subject to excessively lift fracture is prevented to occur, thus serve the effect of secondary protection.
Above-mentioned protective device structure is simple, easy to make, less investment, the interference not by other external factors in using, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the simplified schematic diagram of unloading a ship of the ship unloaders being provided with splicing plate;
Fig. 2 is that A-A in Fig. 1 is to simplified schematic diagram;
Fig. 3 is that B in Fig. 2 is to partial schematic diagram.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
In Fig. 1, column 1.1 supports the ship unloaders be arranged on harbour 1, capture with grab bucket 5 of unloading a ship the material transfer delivered in freighter 7 cabin suitable for reading to large funnel 9 after open, drop down onto flow process Belt Conveying below large funnel 9 to stockyard, rear.The large-scale splicing plate 6(that makes of steel plate is installed see Fig. 2 in the side of bordering on the sea of the large funnel of ship unloaders 9), the pivot shaft of splicing plate 6 one end is arranged on the extra large lateral edges of large funnel 9 by support sleeve 6.1 hinge joint.Freighter 7 is after harbour 1 pulls in shore, on the winch 2 of ship unloaders, steel rope 3 is by being arranged on multiple pulleys 4 at ship unloaders and splicing plate 6 two ends, the upper end of splicing plate 6 is put to basic concordant with the top of large funnel 9, splicing plate 6 be laid in grab bucket 5 transhipment on the way below.Like this, grab bucket 5 pass on material time spill and all accept recovery by splicing plate 6.After the goods in freighter 7 is unsnatched, restart winch 2 and received the upper end of splicing plate 6 is carried to the column 1.1 near ship unloaders by steel rope 3.
For prevent steel rope 3 upper carry pack up splicing plate 6 after, cylinder 2.1 over-running of winch 2 breaks steel rope 3, in the termination of cylinder 2.1 side of winch 2, the cam stop 8 be connected with the start-up circuit of winch 2 is installed, after splicing plate 6 puts in place, cam stop 8 action makes cylinder 2.1 stop operating as splicing plate 6 is spacing, avoids steel rope 3 to be pulled off making splicing plate 6 get out of hand and the accident fallen occurs.
In Fig. 3, in order to prevent cam stop 8 once malfunctioning, the cylinder 2.1 of winch 2 can not shut down in time, break the accident generation that steel rope 3 makes splicing plate 6 fall, the side (see Fig. 2) of the cylinder 2.1 on the winch 2 of ship unloaders, erect the wire rope handling frame 10 of the centerline parallel being provided with its facade and cylinder 2.1, positive subtend cylinder 2.1, the facade being wrapped in the relative wire rope handling frame 10 of steel rope 3 on winch 2 passes from space in frame, on the facade top of wire rope handling frame 10, left and right has been mounted opposite its lower end can do fan-shaped swingingly swing arm along facade.Wire rope handling frame 10 is also provided with: when move excessive to the left or to the right by (the imaginary line position see in figure) both sides for the winding displacement that steel rope 3 is wound around on cylinder 2.1, the limit switch 10.3 that swing arm makes cylinder 2.1 stall of winch 2 can be pushed.
Sensitiveer convenient with reset in order to make swing arm swing touching limit switch 10.3, described swing arm is the connecting lever 11 be made up of inner webs 11.1 and outer webs 11.2 and flex point 11.3, the flex point 11.3 of connecting lever 11 upwards supports with bearing pin 12, steel rope 3 pushes the inner side that touching limit switch 10.3 is inner webs 11.1 of pushing connecting lever 11, and limit switch 10.3 can be touched in the outside of inner webs 11.1; Described outer webs 11.2 does fan-shaped swing when connecting lever 11, its inner webs 11.1 pushes touching limit switch 10.3 by steel rope 3, after winch 2 power-off quits work, then is used as automatically reset counterweight when resuming work.
Described two connecting lever 11 relative support are in upper side frame 10.1 both sides of wire rope handling frame 10 facade, the lower frame 10.2 of wire rope handling frame 10 is positioned at nearly steel rope 3 side of inner webs 11.1, be fixed with when winch 2 normally works, the inner side of inner webs 11.1 is by limiting stopper 13 thereon, and limit switch 10.3 is arranged on lower frame 10.2 and is positioned at the side, outside that inner webs 11.1 leaves steel rope 3.When the winding displacement of steel rope 3 on cylinder 2.1 moves excessively, while pushing inner webs 11.1 leaves limiting stopper 13, touch connection limit switch 10.3 on the control circuitry, make circuit disconnect winch 2 and shut down.
Therefore, steel rope 3 is wrapped in the extruding of the winding displacement on cylinder 2.1, and the cylinder 2.1 of winch 2 can be forced to shut down, not by the interference of other external factors, safe and reliable, prevent excessively lift steel rope 3, also just docking flitch 6 serves the effect of secondary protection.
In order to prevent because external factor causes the misoperation of connecting lever 11, make connecting lever 11, when normal work, beat occur, make the inner webs 11.1 of connecting lever 11 leave limiting stopper 13 and touch limit switch 10.3, disconnect when causing winch 2 to disconnect, between the bottom of described inner webs 11.1 and the lower frame 10.2 of nearly wire rope handling frame 10 center-point side, extension spring 14 is installed, thus ensure that connecting lever 11 can not touch limit switch 10.3 when not extruding by steel rope 3.
In order to protect steel rope 3 to preserve from when long-term extruding connecting lever 11, the side of nearly steel rope 3 side of described inner webs 11.1 is set to can with the outside face of steel rope 3 along the cancave cambered surface 11.11 connect.
Embodiment in above-mentioned detailed description of the invention is not unique, can carry out multiple conversion on this basis.In a word, every with the flesh and blood of the present invention amendment that is purport or equivalently to replace, all within protection scope of the present invention.
Claims (5)
1. the secondary protective device of a ship unloaders splicing plate, it is characterized in that: the side of winch cylinder on ship unloaders, the wire rope handling frame of its facade and centre of the drum's line parallel is installed, space around the relative wire rope handling frame of the steel rope on cylinder facade is passed, in the facade both sides of wire rope handling frame subtend cylinder, be mounted opposite two swing arms can doing fan-shaped swing along facade, wire rope handling frame is also provided with: when the winding displacement that steel rope is wound around on cylinder moves excessive respectively to both sides, the limit switch that swing arm makes winch power-off can be pushed.
2. the secondary protective device of ship unloaders splicing plate as claimed in claim 1, it is characterized in that: described steel rope winding displacement moves excessively pushing swing arm and makes winch power-off, that the upper end of described two swing arms is mounted opposite the both sides being positioned at steel rope on the upper side frame of wire rope handling frame, the lower frame of wire rope handling frame is positioned at the nearly steel rope side of swing arm, be fixed with the reliable limiting stopper thereon of swing arm, limit switch is arranged on the side leaving steel rope lower frame being positioned at swing arm, when swing arm can touch limit switch to when leaving the direction beat of limiting stopper.
3. the secondary protective device of ship unloaders splicing plate as claimed in claim 1 or 2, it is characterized in that: described swing arm, be made up of inner webs and outer webs and flex point, flex point is upwards supported on the upper side frame of wire rope handling frame, its inner webs is positioned at the side of nearly steel rope, and outer webs is positioned at the weight arm leaving steel rope side.
4. the secondary protective device of ship unloaders splicing plate as claimed in claim 3, is characterized in that: on the bottom of described inner webs and described lower frame between nearly middle side, be provided with extension spring.
5. the secondary protective device of ship unloaders splicing plate as claimed in claim 3, is characterized in that: the side of the nearly steel rope side of described inner webs is cancave cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510871203.2A CN105293111A (en) | 2015-12-02 | 2015-12-02 | Secondary protection device for receiving plate of ship unloader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510871203.2A CN105293111A (en) | 2015-12-02 | 2015-12-02 | Secondary protection device for receiving plate of ship unloader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105293111A true CN105293111A (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510871203.2A Pending CN105293111A (en) | 2015-12-02 | 2015-12-02 | Secondary protection device for receiving plate of ship unloader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105293111A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910559A (en) * | 2018-07-20 | 2018-11-30 | 李建强 | A kind of ship unloaders splicing plate lifting protector |
| CN111268457A (en) * | 2020-03-20 | 2020-06-12 | 大连华锐重工集团股份有限公司 | Quick overhead hoist of machine of clearing storehouse |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2775010Y (en) * | 2003-03-03 | 2006-04-26 | 桐乡市求精机械化工厂 | Unloading machine for packed cement from ship |
| US20100266371A1 (en) * | 2007-06-22 | 2010-10-21 | Itrec B.V. | Marine load raising and lowering system |
| 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 |
| CN203402850U (en) * | 2013-05-31 | 2014-01-22 | 江苏海隆重机有限公司 | Bridge type grab bucket ship unloading machine |
| CN204138244U (en) * | 2014-09-22 | 2015-02-04 | 达力普石油专用管有限公司 | A kind of driving reel steel wire ropes touch-type inhibiting device |
| CN205222159U (en) * | 2015-12-02 | 2016-05-11 | 青岛港国际股份有限公司 | Ship unloaders meet second grade protector of flitch |
-
2015
- 2015-12-02 CN CN201510871203.2A patent/CN105293111A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2775010Y (en) * | 2003-03-03 | 2006-04-26 | 桐乡市求精机械化工厂 | Unloading machine for packed cement from ship |
| US20100266371A1 (en) * | 2007-06-22 | 2010-10-21 | Itrec B.V. | Marine load raising and lowering system |
| 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 |
| CN203402850U (en) * | 2013-05-31 | 2014-01-22 | 江苏海隆重机有限公司 | Bridge type grab bucket ship unloading machine |
| CN204138244U (en) * | 2014-09-22 | 2015-02-04 | 达力普石油专用管有限公司 | A kind of driving reel steel wire ropes touch-type inhibiting device |
| CN205222159U (en) * | 2015-12-02 | 2016-05-11 | 青岛港国际股份有限公司 | Ship unloaders meet second grade protector of flitch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910559A (en) * | 2018-07-20 | 2018-11-30 | 李建强 | A kind of ship unloaders splicing plate lifting protector |
| CN108910559B (en) * | 2018-07-20 | 2024-04-02 | 李建强 | Lifting protection device for receiving plate of ship unloader |
| CN111268457A (en) * | 2020-03-20 | 2020-06-12 | 大连华锐重工集团股份有限公司 | Quick overhead hoist of machine of clearing storehouse |
| CN111268457B (en) * | 2020-03-20 | 2023-08-04 | 大连华锐重工集团股份有限公司 | Quick overhead hoist of storehouse machine |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160203 |