CN201901526U - Mobile crane and supporting-foot base plate thereof - Google Patents

Mobile crane and supporting-foot base plate thereof Download PDF

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Publication number
CN201901526U
CN201901526U CN2010206669539U CN201020666953U CN201901526U CN 201901526 U CN201901526 U CN 201901526U CN 2010206669539 U CN2010206669539 U CN 2010206669539U CN 201020666953 U CN201020666953 U CN 201020666953U CN 201901526 U CN201901526 U CN 201901526U
Authority
CN
China
Prior art keywords
backing plate
leg
crotch
supporting
base plate
Prior art date
Application number
CN2010206669539U
Other languages
Chinese (zh)
Inventor
马善华
张继丽
朱磊
计海兵
Original Assignee
徐州重型机械有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 徐州重型机械有限公司 filed Critical 徐州重型机械有限公司
Priority to CN2010206669539U priority Critical patent/CN201901526U/en
Application granted granted Critical
Publication of CN201901526U publication Critical patent/CN201901526U/en

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Abstract

The utility model discloses a supporting-foot base plate of a mobile crane, which comprises a base plate body and lugs arranged on side faces of the base plate body. Each lug comprises an upward hook with downward opening, the fixed end of each upward hook is fixedly connected with the corresponding side face, and a preset distance is reserved between the free end of each upward hook and the bottom face of the base plate body. When the supporting-foot bas plate needs to be hoisted and pulled, the supporting-foot base plate an be conveniently hoisted and pulled by penetrating and sleeving a steel wire rope or other rope-like objects into the upper hook. The supporting-foot base plate is simple in structure and easy to process and produce, and the upward hooks are easy for penetrating and sleeving so that the efficiency in hoisting and pulling the supporting-foot base plate can be improved. Meanwhile, the steel wire ropes and other structures used for penetrating are common industrial articles and easy to purchase and have good generality, so that the cost of a mobile crane can be reduced. The utility model further provides a mobile crane comprising the supporting-foot base plate, which has improved operation safety.

Description

Movable crane and leg backing plate thereof
Technical field
The utility model relates to the hoisting crane field, particularly relates to a kind of leg backing plate that is used for movable crane.In addition, the utility model also relates to a kind of movable crane that comprises above-mentioned leg backing plate.
Background technology
Supporting leg is the important composition parts of hoisting crane, supporting leg mainly be by with being connected of vehicle frame after be used for support frame.The supporting leg pattern of hoisting crane mainly is divided into two kinds at present, and a kind of is the H type, and when the hoisting crane hoisting operation, the supporting leg that is in vehicle frame leading portion and rear end stretches out to both sides respectively, is the H shape from overlooking; A kind of is the X type, and when crane job, the supporting leg that is in the vehicle frame both sides is swung sideward out respectively, is the X shape from overlooking.But no matter be the sort of leg structure form, the power with car load when the final effect of supporting leg all is crane job is delivered on the ground by supporting leg, support frame, the safety and the stability of car load when guaranteeing hoisting crane work.
Because the construction of various main facilitieses, the demand of existing portable weight-lifting equipment to large-tonnage and even super-tonnage is more and more.Counter-force is just big more on the big more supporting leg of tonnage, and this has just caused grounding pressure to increase relatively.In order to increase ground contact area, reduce grounding pressure, design a kind of leg backing plate, be placed on the below of leg disc.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of a kind of typical leg backing plate in the prior art; Fig. 2 is the partial enlarged drawing of A part among Fig. 1.
Backing plate 11 is welded by square steel and high tensile steel plate among the figure, and hanger 12 is circular holes (unsymmetric structure) of opening on backing plate 11 side plates, sees enlarged view I.When the position that leg backing plate 11 is placed as figure in use, leg disc 13 is supported on the leg backing plate 11, and leg backing plate 11 directly contacts with ground.When leg backing plate 11 needs are mobile, utilize the suspension hook group to pass hanger circular hole 14 shown in Figure 2, leg backing plate 11 is sling.
Leg backing plate 11 in use, leg disc 13 is directly to support in the above, when work under bad environment (as the soft inequality in ground), or under the influence of special operation operating mode, leg disc 13 is subjected to the effect of side force, between leg disc 13 and the leg backing plate 11 relative changing of the relative positions phenomenon can take place, safety during to crane job and stability produce certain harmful effect.
Simultaneously, existing leg backing plate 11 can only use the suspension hook group to hang and lead hanging when leading, and the restriction of hanger circular hole 14 sizes, and the purchase of suspension hook group is cumbersome, and commonality is relatively poor.
During the operation of leg backing plate 11 long-term uses one sides, leg backing plate 11 may occur bending and deformation, as the another side of using leg backing plate 11 instead is driving surface, because the hanger 12 of existing leg backing plate 11 be asymmetric, hangs when leading also very inconvenience.
Therefore, safety when how to increase crane job and stability, reduce the leg backing plate hang and lead difficulty, be the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of this utility model provides a kind of leg backing plate that is used for movable crane, and this leg backing plate is easy to hang and leads.Another purpose of the present utility model provides a kind of movable crane that comprises above-mentioned leg backing plate, and its safety and stability are improved.
For realizing above-mentioned utility model purpose, the utility model provides a kind of leg backing plate of jenny, comprise backing plate main body and the hanger that is installed on described backing plate main body side, described hanger comprises the last crotch that Open Side Down, the described fixed end of going up crotch is captiveed joint with described side, and the bottom surface of free end and described backing plate main body has predetermined distance.
Preferably, described hanger also comprises crotch down, and the fixed end of this time crotch is captiveed joint with described side, and free end and the described free end of going up crotch have predetermined distance.
Preferably, also comprise connecting described upward crotch and the described vertical portion of crotch down, and the described fixed end of going up crotch is all captiveed joint with described vertical portion with the described fixed end of crotch down.
Preferably, described crotch, described vertical portion and the described crotch down gone up has integral structure.
Preferably, the number of described hanger is an even number, and each described hanger is provided with in the face of claiming with the meta of described backing plate main body.
The utility model also provides a kind of movable crane, comprises that this leg backing plate supports the supporting leg of described movable crane as above-mentioned each described leg backing plate.
Preferably, the backing plate main body of described leg backing plate is provided with first connecting bore, and described supporting leg bottom is provided with second connecting bore, and described first connecting bore is connected by bearing pin with described second connecting bore.
Preferably, described first connecting bore is a through hole.
Leg backing plate provided by the utility model is used to support the supporting leg of jenny.This leg backing plate comprises the backing plate main body and is installed on the hanger of described backing plate main body side, unlike the prior art be, described hanger comprises the last crotch that Open Side Down, the described fixed end of going up crotch is captiveed joint with described side, and the bottom surface of free end and described backing plate main body has predetermined distance.When the leg backing plate need hang when leading, be set in the crotch by steel rope or other ropy, can hang easily and lead the leg backing plate.This is simple in structure, is easy to processing, and upward crotch wears easily, can improve and hang the efficient of leading the leg backing plate.Simultaneously, wearing by structures such as steel ropes all is common used in industry article, is easy to buying, and commonality is better, can reduce the cost of movable crane.
A kind of preferred embodiment in, described hanger also comprises down crotch, the fixed end of this time crotch is captiveed joint with described side, free end and described on the free end of crotch have predetermined distance.The leg backing plate in use can use in use for some time conversely, and promptly used upper surface becomes lower surface, and original lower surface is become upper surface, makes down crotch become the last crotch that Open Side Down, works hanging when leading equally.Like this, the leg backing plate in use can two-sidedly use, and avoids producing distortion with frequent use of one side, thereby effectively prolongs the service life of leg backing plate.
On the basis that above-mentioned leg backing plate is provided, the utility model also provides a kind of movable crane that comprises above-mentioned leg backing plate; Because the leg backing plate has above-mentioned technique effect, the movable crane with this leg backing plate also has the corresponding techniques effect.
In another preferred embodiment, the backing plate main body of leg backing plate is provided with first connecting bore, and described supporting leg bottom is provided with second connecting bore, and described first connecting bore is connected by bearing pin with described second connecting bore.The leg backing plate in use, bearing pin is fixed together backing plate main body and supporting leg bottom, avoids taking place between supporting leg bottom and the backing plate main body the relative changing of the relative positions, safety and stability when improving the movable crane operation.Therefore, movable crane provided by the utility model more can adapt to than bad working environment, still can safe in operation under relatively poor surface state, thus effectively improve the comformability of movable crane.
Description of drawings
Fig. 1 is the structural representation of a kind of typical leg backing plate in the prior art;
Fig. 2 is the partial enlarged drawing of A part among Fig. 1;
Fig. 3 provides the structural representation of a kind of specific embodiment of hanger for the utility model;
Fig. 4 provides the structural representation of a kind of specific embodiment of leg backing plate for the utility model;
Fig. 5 provides the connection structure scheme drawing of leg backing plate and supporting leg for the utility model;
Fig. 6 is the explosive view of leg backing plate shown in Figure 5 and supporting leg;
Fig. 7 provides the structural representation of a kind of specific embodiment travelling position of leg backing plate for the utility model.
The specific embodiment
Core of the present utility model provides a kind of leg backing plate that is used for movable crane, and this leg backing plate is easy to hang and leads.Another core of the present utility model provides a kind of movable crane that comprises above-mentioned leg backing plate, and its safety and stability are improved.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 3 and Fig. 4, Fig. 3 provides the structural representation of a kind of specific embodiment of hanger for the utility model; Fig. 4 provides the structural representation of a kind of specific embodiment of leg backing plate for the utility model.
Leg backing plate 2 provided by the utility model is used to support the supporting leg 3 of jenny.This leg backing plate 2 comprises backing plate main body 21 and is installed on the hanger 22 of backing plate main body 21 sides, unlike the prior art be, hanger 22 comprises the last crotch 221 that Open Side Down, and the fixed end of last crotch 221 is captiveed joint with the side, and the bottom surface of free end and backing plate main body 21 has predetermined distance.When leg backing plate 2 need hang when leading, be set in the crotch 221 by steel rope or other ropy, can hang easily and lead leg backing plate 2.This is simple in structure, is easy to processing, and upward crotch 221 wears easily, can improve and hang the efficient of leading leg backing plate 2.Simultaneously, wearing by structures such as steel ropes all is common used in industry article, is easy to buying, and commonality is better, can reduce the cost of movable crane.
In a kind of concrete embodiment, hanger 22 also comprises crotch 222 down, and the fixed end of this time crotch 222 is captiveed joint with the side, and the free end of free end and last crotch 221 has predetermined distance.Leg backing plate 2 in use can use in use for some time conversely, and promptly used upper surface becomes lower surface, and original lower surface is become upper surface, makes down crotch 222 become the last crotch 221 that Open Side Down, works hanging when leading equally.Like this, leg backing plate 2 in use can two-sidedly use, and avoids producing distortion with frequent use of one side, thereby effectively prolongs the service life of leg backing plate 2.
Particularly, hanger 22 provided by the utility model also comprises the vertical portion 223 of connect going up crotch 221 and following crotch 222, and on the fixed end of crotch 221 and the fixed end of following crotch 222 all captive joint with vertical portion 223.Hanger 22 has three parts, captives joint with the side of backing plate main body 21 in vertical portion 223, and last crotch 221 and following crotch 222 all are installed in the side of backing plate main body 21 by vertical portion 223.Obviously, vertical portion 223 can not exist, and last crotch 221 and following crotch 222 directly are fixed on the side of backing plate body, just can realize the purpose of this utility model.
Further, above-mentioned last crotch 221, vertical portion 223 can have integral structure with following crotch 222.As shown in Figure 3, will go up crotch 221, vertical portion 223 and following crotch 222 and make a single-piece workpiece, overall fixed is connected on the sidewall of backing plate main body 21, makes the parts of leg backing plate 2 less, can simplify the production program of leg backing plate 2.
A kind of preferred embodiment in, the number of hanger 22 can be even number in the leg backing plate 2 provided by the utility model, and each hanger 22 is provided with in the face of claiming with the meta of backing plate main body 21.As shown in Figure 4, leg backing plate 2 shown in the figure is provided with four hangers 22, and the hanger 22 of left and right direction is the plane of symmetry with middle plane B, and the hanger 22 of front and rear direction is the plane of symmetry with middle plane C, make leg backing plate 2 can keep balance hanging when leading, improve and hang the safety of leading.Obviously, hanger 22 also can be 2 or 6 and wait other even number, perhaps hanger 22 can be 1, equally also can play the effect of supporting jenny supporting leg 3, and when needs are mobile, also can hang smoothly and lead, just the burden that a plurality of hangers 22 can reduce each hanger 22 is set symmetrically, prolongs the service life of each hanger 22.
Obviously, the nouns of locality such as upper and lower front, rear, left and right mentioned above are that to be in position shown in Figure 4 with leg backing plate 2 be benchmark definition.Should be appreciated that the noun of locality used herein should in no way limit protection domain of the present utility model.
Except above-mentioned leg backing plate 2, the utility model also provides a kind of movable crane that comprises above-mentioned leg backing plate 2.Movable crane is when operation, and leg backing plate 2 is used to support the supporting leg 3 of jenny, to increase supporting leg 3 area of thrust surface on the ground, improves the operational stability of movable crane.The structure of these other each several parts of movable crane please refer to prior art, and this paper repeats no more.
Particularly, above-mentioned movable crane can be that wheel crane or other have the hoisting crane of telescopic outrigger.
Please refer to Fig. 5 and Fig. 6, Fig. 5 provides the connection structure scheme drawing of leg backing plate and supporting leg for the utility model; Fig. 6 is the explosive view of leg backing plate shown in Figure 5 and supporting leg.
In a kind of concrete embodiment, the backing plate main body 21 of leg backing plate 2 is provided with first connecting bore 211, and the bottom of supporting leg 3 is provided with second connecting bore, 31, the first connecting bores 211 and is connected by bearing pin 4 with second connecting bore 31.Leg backing plate 2 in use, bearing pin 4 is fixed together the bottom of backing plate main body 21 and supporting leg 3, the relative changing of the relative positions takes place, safety and stability when improving the movable crane operation between the bottom of avoiding supporting leg 3 and the backing plate main body 21.Therefore, movable crane provided by the utility model more can adapt to than bad working environment, still can safe in operation under relatively poor surface state, thus effectively improve the comformability of movable crane.
Please refer to Fig. 7, Fig. 7 provides the structural representation of a kind of specific embodiment travelling position of leg backing plate for the utility model.
A kind of preferred embodiment in, first connecting bore 211 on the backing plate main body 21 can be through hole, make two or more leg backing plates 2 when travelling position, can overlappingly place, and in first connecting bore 211, set pin 5 is set, set pin 5 is cascaded adjacent leg backing plate 2, reduces leg backing plate 2 produces play in transportation possibility, the safe reliability when improving 2 transportations of leg backing plate.
More than movable crane provided by the utility model and leg backing plate thereof are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.

Claims (8)

1. the leg backing plate of a jenny, comprise backing plate main body and the hanger that is installed on described backing plate main body side, it is characterized in that, described hanger comprises the last crotch that Open Side Down, the described fixed end of going up crotch is captiveed joint with described side, and the bottom surface of free end and described backing plate main body has predetermined distance.
2. the leg backing plate of jenny according to claim 1 is characterized in that, described hanger also comprises crotch down, and the fixed end of this time crotch is captiveed joint with described side, and free end and the described free end of going up crotch have predetermined distance.
3. the leg backing plate of jenny according to claim 2 is characterized in that, also comprise connecting described upward crotch and the described vertical portion of crotch down, and the described fixed end of going up crotch is all captiveed joint with described vertical portion with the described fixed end of crotch down.
4. the leg backing plate of jenny according to claim 3 is characterized in that, described crotch, described vertical portion and the described crotch down gone up has integral structure.
5. according to the leg backing plate of each described jenny of claim 1 to 4, it is characterized in that the number of described hanger is an even number, each described hanger is provided with in the face of claiming with the meta of described backing plate main body.
6. a movable crane is characterized in that, comprises that this leg backing plate supports the supporting leg of described movable crane as each described leg backing plate of claim 1 to 5.
7. jenny according to claim 6 is characterized in that, the backing plate main body of described leg backing plate is provided with first connecting bore, and described supporting leg bottom is provided with second connecting bore, and described first connecting bore is connected by bearing pin with described second connecting bore.
8. jenny according to claim 7 is characterized in that, described first connecting bore is a through hole.
CN2010206669539U 2010-12-17 2010-12-17 Mobile crane and supporting-foot base plate thereof CN201901526U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206669539U CN201901526U (en) 2010-12-17 2010-12-17 Mobile crane and supporting-foot base plate thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206669539U CN201901526U (en) 2010-12-17 2010-12-17 Mobile crane and supporting-foot base plate thereof

Publications (1)

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CN201901526U true CN201901526U (en) 2011-07-20

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102717780A (en) * 2012-07-05 2012-10-10 中联重科股份有限公司 Supporting leg base plate
CN102730546A (en) * 2012-06-29 2012-10-17 上海三一科技有限公司 Adjustable crawler frame lifting device and crane
CN102817483A (en) * 2012-08-07 2012-12-12 中建钢构有限公司 Diffusion wheel-pressure reinforcement construction method for floorslab on hoisting machinery and diffusion wheel-pressure reinforcement plate
NL2009495C2 (en) * 2012-09-20 2014-03-24 Reedijk Hydrauliek B V Lifting or hoisting system and method of stabilizing a mobile elevating work platform.
CN108560535A (en) * 2018-03-30 2018-09-21 上海二十冶建设有限公司 The bogey constructed on muck soil for pile dusting machine
CN109626240A (en) * 2018-12-20 2019-04-16 柳州三十零汽车零部件有限公司 A kind of autocrane overturning-preventing early warning system and its method for early warning

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102730546A (en) * 2012-06-29 2012-10-17 上海三一科技有限公司 Adjustable crawler frame lifting device and crane
CN102730546B (en) * 2012-06-29 2014-07-23 上海三一科技有限公司 Adjustable crawler frame lifting device and crane
CN102717780A (en) * 2012-07-05 2012-10-10 中联重科股份有限公司 Supporting leg base plate
CN102717780B (en) * 2012-07-05 2015-06-17 中联重科股份有限公司 Supporting leg base plate
CN102817483A (en) * 2012-08-07 2012-12-12 中建钢构有限公司 Diffusion wheel-pressure reinforcement construction method for floorslab on hoisting machinery and diffusion wheel-pressure reinforcement plate
NL2009495C2 (en) * 2012-09-20 2014-03-24 Reedijk Hydrauliek B V Lifting or hoisting system and method of stabilizing a mobile elevating work platform.
EP2711330A1 (en) * 2012-09-20 2014-03-26 Reedijk Hydrauliek B.V. Lifting or hoisting system and method of stabilizing a mobile elevating work platform
CN108560535A (en) * 2018-03-30 2018-09-21 上海二十冶建设有限公司 The bogey constructed on muck soil for pile dusting machine
CN109626240A (en) * 2018-12-20 2019-04-16 柳州三十零汽车零部件有限公司 A kind of autocrane overturning-preventing early warning system and its method for early warning

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110720

Termination date: 20191217