CN201330117Y - Telescopic beam limiting device of hanger for gantry container crane and crane thereof - Google Patents
Telescopic beam limiting device of hanger for gantry container crane and crane thereof Download PDFInfo
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- CN201330117Y CN201330117Y CNU2009200015069U CN200920001506U CN201330117Y CN 201330117 Y CN201330117 Y CN 201330117Y CN U2009200015069 U CNU2009200015069 U CN U2009200015069U CN 200920001506 U CN200920001506 U CN 200920001506U CN 201330117 Y CN201330117 Y CN 201330117Y
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- Prior art keywords
- suspender
- telescopic girder
- suspender telescopic
- girder
- cushion cylinder
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Abstract
The utility model discloses a telescopic beam limiting device of hanger for gantry container crane. The device is installed with a damping element at one surface which is opposite with the movement direction of telescopic beam of a hanger on the main beam of the hanger. The telescopic beam of the hanger can be set in position through overcoming the damping of the damping element. One optimized solution of the utility model is that a rubber cushion pad is adopted as a damping element, and simultaneously a rigid limiting stopper is installed. The other optimized solution of the utility model is that the damping element adopts a buffer oil cylinder. When the telescopic beam of the hanger is positioned at another box position far from the surface, the telescopic rod of the buffer oil cylinder protrudes under the function of the oil cylinder. As a damping element is installed, the telescopic beam of the hanger requires overcoming the damping provided by the damping element for resetting. The impact force generated when the telescopic beam of the hanger resets is reduced. The service lifetime of the hanger is prolonged.
Description
Technical field
The utility model relates to a kind of gantry container crane, especially relates to gantry container crane suspender telescopic girder inhibiting device.The utility model provides a kind of hoisting crane simultaneously.
Background technology
Gantry container crane is a kind of hoisting crane that is specifically designed to lifting container, and its suspender has very big span, can clamp freight container from both ends of the surface, realizes the lifting carrying.
The suspender fitness for purpose suspender of gantry container crane can stretch, to adapt to the Container Dimensions of various criterion.For example, the typical sizes of freight container commonly used is 20 feet and 40 forty equivalent unit 40s, and then the suspender span need change on 20 feet and 40 feet two sizes.For this reason, suspender has suspender girder and suspender telescopic girder, and the suspender telescopic girder can be that basic point is made fore and aft motion with the suspender girder.At the terminal point of fore and aft motion, the suspender telescopic girder of described suspender and suspender girder can influence the service life of suspender because the motional inertia and the suspender girder of suspender telescopic girder clash into.
The utility model content
At above-mentioned defective, the technical matters that the utility model solves is, provides a kind of gantry container crane with suspender telescopic girder inhibiting device, and the dynamics of clashing into takes place when this inhibiting device can alleviate the withdrawal of suspender telescopic girder and between the suspender girder.
The utility model provides gantry container crane suspender telescopic girder inhibiting device, on the suspender girder on the one side of suspender telescopic girder sense of motion, be provided with damping element, when this direction was moved, the damping that need overcome this damping element just can put in place at the suspender telescopic girder.
Preferably, described damping element is a rubber buffer; On the suspender girder on the plane of suspender telescopic girder sense of motion, the rigidity limiting stopper is set simultaneously; When the suspender telescopic girder is in away from the position, case position on this plane, this rubber buffer stretch out end face than the end face of rigidity limiting stopper more near the suspender telescopic girder.
Preferably, described damping element is a cushion cylinder; When the suspender telescopic girder was in another position, case position away from this plane, the expansion link of this cushion cylinder stretched out under the effect of oil pressure.
Preferably, described cushion cylinder connects hydraulic circuit by electromagnetic valve, and when the suspender telescopic girder was in another position, case position, electromagnetic valve made the high pressure side of the rodless cavity conducting hydraulic oil of cushion cylinder, and the expansion link of described cushion cylinder is stretched out; When suspender telescopic girder during to this plane motion, described electromagnetic valve makes the low pressure side conducting of the rodless cavity and the hydraulic oil of cushion cylinder, and the expansion link outer face that described suspender telescopic girder need prop up this cushion cylinder segment distance that moves is withdrawn fully up to expansion link.
Preferably, described cushion cylinder and electromagnetic valve bonded assembly pipeline are provided with flow regulating valve, back pressure valve or balance cock; And described flow regulating valve, back pressure valve or balance cock two ends are parallel with and flow to the check valve that points to cushion cylinder.
Preferably, also has position transduser, during the motion of suspender telescopic girder, this position transduser changes at suspender telescopic girder generation state when the described cushion cylinder expansion link end, after the detection signal that this state change produces sends, the phase place of described electromagnetic valve changes, and makes the low pressure side conducting of cushion cylinder rodless cavity and hydraulic oil; When the suspender telescopic girder stretches out operation, this position transduser is after the suspender telescopic girder leaves retracted position one segment distance, the generation state changes, after the detection signal that this state change produces sends, the phase place of described electromagnetic valve changes, and makes the high pressure side conducting of cushion cylinder rodless cavity and hydraulic oil.
Preferably, described cushion cylinder is plunger cylinder or ram cylinder.
The utility model provides a kind of hoisting crane simultaneously, and this hoisting crane is the gantry container crane with suspender Telescopic, and this hoisting crane has the described suspender telescopic girder of above-mentioned each technical scheme inhibiting device.
Compared with prior art, the suspender telescopic girder inhibiting device that the utility model provides, on the one side of suspender telescopic girder sense of motion, be provided with damping element on the suspender girder, when making suspender telescopic girder retraction, need overcome the damping ability return that damping element provides, the impact that has produced when having reduced suspender telescopic girder return helps prolonging the suspender life-span.
In a preferred implementation of the present utility model, adopt rubber buffer as damping element, simple in structure, respond well.
In another preferred embodiment of the present utility model, adopt cushion cylinder as damping element, can play buffering effect preferably equally.In a preferred embodiment, this cushion cylinder is by solenoid control, and in good time and hydraulic oil conducting makes its oil pressure that can utilize hydraulic oil obtain dumping force, has better damping.
Description of drawings
Fig. 1 is the scheme drawing that is in half-way in the motion of the utility model first embodiment suspender telescopic girder;
Fig. 2 is the scheme drawing of the utility model first embodiment suspender telescopic girder when moving to the rubber buffer contact position;
Fig. 3 is the utility model first embodiment telescopic girder suspender telescopic girder motion scheme drawing when putting in place;
Fig. 4 is the scheme drawing of the utility model second embodiment, and the suspender telescopic girder to flexible direction terminal point motion, does not contact hydraulic actuating cylinder expansion link end as yet among the figure;
Fig. 5 is the scheme drawing of the utility model second embodiment, and the suspender telescopic girder has propped up described hydraulic ram expansion link end face among the figure, is continuing to flexible direction terminal point motion;
Fig. 6 is the scheme drawing of the utility model second embodiment, and the suspender telescopic girder has moved to the final position among the figure;
Fig. 7 is the scheme drawing of the utility model second embodiment, and the suspender telescopic girder moves to another case position among the figure, and has broken away from cushion cylinder expansion link end.
The specific embodiment
Please referring to Fig. 1, this figure is that the gantry container crane that the utility model first embodiment provides moves scheme drawing when being in half-way at the suspender telescopic girder to its flexible direction terminal point with suspender telescopic girder inhibiting device.The girder of suspender shown in the figure 1, suspender telescopic girder 2, limiting stopper 3 and rubber buffer 4.
In this embodiment, described limiting stopper 3 is a rigid pipe, its cross section is a U-shaped, U-shaped bottom be fixed on suspender girder 1 on the one side of suspender telescopic girder 2 sense of motions, opening is towards suspender telescopic girder 2, described rubber buffer 4 promptly is fixed on the U-shaped bottom of limiting stopper 3, and it highly exceeds two external part end faces of the U-shaped of limiting stopper 3.
Scheme drawing when Fig. 2 has moved to described rubber buffer 4 position contacting for the suspender telescopic girder.This illustrates, and the suspender telescopic girder has contacted the end face of described rubber buffer 4 towards the one side of described suspender girder, and elastic deformation takes place.Produce elastic force behind these rubber buffer 4 elastic deformations, the motion generation damping to described suspender telescopic girder 2 descends its impulsive force.
Fig. 3 illustrates the scheme drawing that the suspender telescopic girder has moved and put in place.At this moment, suspender telescopic girder 2 has propped up the external part end face of limiting stopper 3 both sides of described U-shaped.The external part end face of these limiting stopper 3 both sides is called spacing end face, and by this end face, realization is spacing to 2 motions of suspender telescopic girder, and suspender telescopic girder 2 reaches its predetermined case position, for example 20 feet or 40 feet case positions at this moment.
In the foregoing description, rubber buffer 4 can directly be fixed on the plane of suspender girder 1, as long as guarantee that on the direction of suspender telescopic girder 2, the spacing end face that exceeds limiting stopper 3 gets final product.
The scheme that the foregoing description provides is simpler and easy, can reach better technical effect.In order to reach better damping, can adopt hydraulic ram as damping element, this hydraulic ram is called cushion cylinder.Fig. 4-Fig. 7 illustrates a kind of hydraulic actuating cylinder that adopts as the gantry container crane of damping element suspender telescopic girder inhibiting device.Wherein, the state of Fig. 4 is that the suspender telescopic girder moves to flexible direction terminal point, does not contact hydraulic actuating cylinder expansion link end as yet; The state of Fig. 5 is that the suspender telescopic girder has propped up described hydraulic ram expansion link end face, is continuing to flexible direction terminal point motion; Fig. 6 is the state when the suspender telescopic girder being shown moving to the final position; Fig. 7 is the suspender telescopic girder to another case position motion, and the state that has broken away from cushion cylinder expansion link end
As shown in Figure 4, this gantry container crane comprises cushion cylinder 5, sensor 6, electromagnetic valve 7, flow regulating valve 8, check valve 9 with suspender telescopic girder inhibiting device.
Described cushion cylinder 5 adopts plunger cylinder in the present embodiment.This cushion cylinder 5 is fixed on the suspender girder 1, and its expansion link stretches out to suspender telescopic girder 2 directions.
Described cushion cylinder 5 rodless cavities pass through oil pipe, the first port I that connects electromagnetic valve 7 through described flow regulating valve 8, this electromagnetic valve 7 is the two-bit triplet electromagnetic valve, have two ports with the first port I opposite side, be respectively the second port T that connects the hydraulic oil low pressure side and connect on high-tension side the 3rd port P of hydraulic oil.When the electromagnet of electromagnetic valve 7 gets when electric, its first port I and the second port T conducting, when the electromagnet dead electricity of electromagnetic valve 7, under the effect of electromagnetic valve spring, the described first port I is communicated with the 3rd port P.
Described flow regulating valve 8 two ends are parallel with check valve 9, and this check valve 9 is at hydraulic oil flow conducting during to described cushion cylinder 5 rodless cavities, the described flow regulating valve 8 of short circuit; When hydraulic oil when the rodless cavity of described cushion cylinder 5 flows out, then check valve 9 blocking-up must be flowed out the hydraulic oil of cushion cylinder 5 rodless cavities through described flow regulating valve 8.
Described sensor 6 is installed in place, is used to detect the movement position of suspender telescopic girder 1.Move near cushion cylinder 5 expansion link ends or just against cushion cylinder 5 expansion link ends at suspender telescopic girder 2, promptly during as shown in Figure 5 position, described sensor 6 will send signal, for example becomes high level signal or opposite from original output low level signal.
The principle of work of above-mentioned suspender telescopic girder inhibiting device is as described below.
When suspender telescopic girder 2 just from former case position during to the motion of the direction of the described suspender girder 1 of Fig. 4, the rodless cavity of described cushion cylinder 5 is connected to the high pressure side of hydraulic oil by electromagnetic valve 7, and its expansion link is ejected by hydraulic oil.Described sensor 6 is not owing to detecting suspender telescopic girder 2, so signal can not change.When described suspender telescopic girder 2 moves, in position shown in Figure 5, it is approaching that described sensor 6 detects suspender telescopic girder 2, its output signal is changed to high level from original low level, after this signal changed controlled device or control circuit (figure does not show) reception, promptly controlling described electromagnetic valve 7 must be electric, its first port I and the second port T conducting, then the rodless cavity of cushion cylinder 5 is communicated to the second port T by flow regulating valve 8, and promptly the rodless cavity of cushion cylinder 5 is communicated to the hydraulic oil low pressure side.When suspender telescopic girder 2 continues motion, because expansion link end against this cushion cylinder 5, run into the dumping force of cushion cylinder 5 and reduced impact, cushion cylinder 5 expansion links are extruded, make the hydraulic oil of its rodless cavity flow to the hydraulic oil low pressure side by pipeline, because the effect of flow regulating valve 8 makes the oil pressure of rodless cavity bigger, can play shock damping action preferably.When described suspender telescopic girder 2 moved to position shown in Figure 6, the expansion link of cushion cylinder 5 was withdrawn fully, and then its end is spacing to described suspender telescopic girder 2, makes it reach position, needed case position just and stops.
When suspender need be got back to original case position, suspender telescopic girder 2 shown in Figure 6 is to the position of principle suspender girder 1, when it moves to certain position, described suspender telescopic girder 2 disengagings contact with cushion cylinder 5 expansion link ends, to position shown in Figure 7 the time, described sensor 6 will detect suspender telescopic girder 2 and leave, and its detection signal that sends becomes low level from high level.Then described electromagnetic valve 7 dead electricity, its first port I and the 3rd port P conducting, high-voltage hydraulic oil flows into the rodless cavity of described cushion cylinder 5 by check valve 8, and the expansion link of described cushion cylinder 5 is ejected, and is the motion preparatory condition of suspender telescopic girder 2 next time.
In the above-described embodiments, described flow regulating valve 8 plays the pressure that increases rodless cavity hydraulic oil, and for cushion cylinder 5 provides the effect of dumping force, this flow regulating valve 8 also can be by realizations such as back pressure valve, balance cocks.Described cushion cylinder 5 also can use ram cylinder except the plunger cylinder that the use present embodiment is mentioned; Electromagnetic valve can also use two position four-way solenoid valves.
More than the core of two embodiment all be, between suspender girder 1 and suspender telescopic girder 2, provide damping element, reduce both because the impulsive force that collision produces, to prolong the suspender life-span.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1, a kind of gantry container crane suspender telescopic girder inhibiting device, it is characterized in that, on the suspender girder on the one side of suspender telescopic girder sense of motion, be provided with damping element, when this direction was moved, the damping that need overcome this damping element just can put in place at the suspender telescopic girder.
2, gantry container crane according to claim 1 is characterized in that with suspender telescopic girder inhibiting device described damping element is a rubber buffer; On the suspender girder on the plane of suspender telescopic girder sense of motion, the rigidity limiting stopper is set simultaneously; When the suspender telescopic girder is in away from the position, case position on this plane, this rubber buffer stretch out end face than the end face of rigidity limiting stopper more near the suspender telescopic girder.
3, gantry container crane according to claim 1 is characterized in that with suspender telescopic girder inhibiting device described damping element is a cushion cylinder; When the suspender telescopic girder was in another position, case position away from this plane, the expansion link of this cushion cylinder stretched out under the effect of oil pressure.
4, gantry container crane according to claim 3 suspender telescopic girder inhibiting device, it is characterized in that, described cushion cylinder connects hydraulic circuit by electromagnetic valve, when the suspender telescopic girder is in another position, case position, electromagnetic valve makes the high pressure side of the rodless cavity conducting hydraulic oil of cushion cylinder, and the expansion link of described cushion cylinder is stretched out; When suspender telescopic girder during to this plane motion, described electromagnetic valve makes the low pressure side conducting of the rodless cavity and the hydraulic oil of cushion cylinder, and the expansion link outer face that described suspender telescopic girder need prop up this cushion cylinder segment distance that moves is withdrawn fully up to expansion link.
5, gantry container crane according to claim 4 is characterized in that with suspender telescopic girder inhibiting device described cushion cylinder and electromagnetic valve bonded assembly pipeline are provided with flow regulating valve, back pressure valve or balance cock; And described flow regulating valve, back pressure valve or balance cock two ends are parallel with and flow to the check valve that points to cushion cylinder.
6, gantry container crane according to claim 4 suspender telescopic girder inhibiting device, it is characterized in that, also has position transduser, during the motion of suspender telescopic girder, this position transduser changes at suspender telescopic girder generation state when the described cushion cylinder expansion link end, after the detection signal that this state change produces sent, the phase place of described electromagnetic valve changed, and makes the low pressure side conducting of cushion cylinder rodless cavity and hydraulic oil; When the suspender telescopic girder stretches out operation, this position transduser is after the suspender telescopic girder leaves retracted position one segment distance, the generation state changes, after the detection signal that this state change produces sends, the phase place of described electromagnetic valve changes, and makes the high pressure side conducting of cushion cylinder rodless cavity and hydraulic oil.
7, according to the described gantry container crane of claim 3-6 suspender telescopic girder inhibiting device, it is characterized in that described cushion cylinder is plunger cylinder or ram cylinder.
8, a kind of hoisting crane, this hoisting crane is the gantry container crane with suspender Telescopic, it is characterized in that, has above-mentioned power 1-power 7 each described suspender telescopic girder inhibiting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200015069U CN201330117Y (en) | 2009-01-05 | 2009-01-05 | Telescopic beam limiting device of hanger for gantry container crane and crane thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200015069U CN201330117Y (en) | 2009-01-05 | 2009-01-05 | Telescopic beam limiting device of hanger for gantry container crane and crane thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201330117Y true CN201330117Y (en) | 2009-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200015069U Expired - Fee Related CN201330117Y (en) | 2009-01-05 | 2009-01-05 | Telescopic beam limiting device of hanger for gantry container crane and crane thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201330117Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108483249A (en) * | 2018-05-31 | 2018-09-04 | 河南省中原起重机械有限公司 | A kind of bridge crane that stability is high |
-
2009
- 2009-01-05 CN CNU2009200015069U patent/CN201330117Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108483249A (en) * | 2018-05-31 | 2018-09-04 | 河南省中原起重机械有限公司 | A kind of bridge crane that stability is high |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SANY MARINE HEAVY INDUSTRIES CO., LTD. Free format text: FORMER OWNER: KM GROUP CO., LTD. Effective date: 20150605 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 410100 CHANGSHA, HUNAN PROVINCE TO: 519050 ZHUHAI, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150605 Address after: 519050 Guangdong city of Zhuhai province Pingsha town Ping Road No. 336 East Building Room 310 Patentee after: 31 ocean heavy industry Co., Ltds Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: KM Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20160105 |