CN201694763U - Crane and superlift apparatus of same - Google Patents

Crane and superlift apparatus of same Download PDF

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Publication number
CN201694763U
CN201694763U CN2010202438198U CN201020243819U CN201694763U CN 201694763 U CN201694763 U CN 201694763U CN 2010202438198 U CN2010202438198 U CN 2010202438198U CN 201020243819 U CN201020243819 U CN 201020243819U CN 201694763 U CN201694763 U CN 201694763U
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CN
China
Prior art keywords
crane
super lifting
mast
tensioner
hoisting crane
Prior art date
Application number
CN2010202438198U
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Chinese (zh)
Inventor
赵信毅
程荣国
Original Assignee
三一汽车起重机械有限公司
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Application filed by 三一汽车起重机械有限公司 filed Critical 三一汽车起重机械有限公司
Priority to CN2010202438198U priority Critical patent/CN201694763U/en
Application granted granted Critical
Publication of CN201694763U publication Critical patent/CN201694763U/en

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Abstract

The utility model discloses a crane and a superlift apparatus comprising a superlift mast, a front takeup and a back takeup, wherein two end of the front takeup are respectively connected to an outer end of the superlift mast and a head of a crane arm, two ends of the back takeup being respectively connected to the outer end of the superlift mast and the tail of the crane arm; wherein the superlift mast contains a basis support component and a first disposed on the support pole which is in the upper part of the basic support component, the basic support component being connected to the crane arm, a second end of the support pole being connected to the front takeup and the back takeup. The superlift mast is also provided with a basic support component, which increases the support rigidity of the superlift mast, the superlift mast being no longer an elongated rod shape structure. The utility model can increase the stable compressed rod of the superlift apparatus, reduce instability of superlift mast, and increase work reliability of the superlift apparatus. The utility model also discloses a crane of the superlift apparatus.

Description

A kind of hoisting crane and super lifting device thereof

Technical field

The utility model relates to engineering machinery field, particularly a kind of super lifting device that is used for hoisting crane.The utility model also relates to a kind of hoisting crane that comprises above-mentioned super lifting device.

Background technology

Along with the fast development of China's economic construction, market increases day by day for the demand of the especially various hoisting cranes of construction machinery and equipment.

In order to make hoisting crane have bigger lifting altitude, the principal arm of large-scale hoisting crane is generally longer, the brachium of auxiliary cargo boom is also correspondingly longer, simultaneously, the component of weight on the direction downward perpendicular to crane arm (also being shear direction) that is lifted by crane is bigger, make that the amount of deflection of crane arm on luffing plane and plane of rotation is all bigger, and this amount of deflection makes that the stressing conditions of crane arm is relatively poor, thereby limited the hoisting capacity and the load-carrying capacity of hoisting crane.

For addressing the above problem, at present, be provided with super lifting device in the hoisting crane, to improve the strained condition of crane arm, improve the hoisting capacity and the load-carrying capacity of hoisting crane.

Please refer to Fig. 1, Fig. 1 is used for the structural representation of the super lifting device of hoisting crane for a kind of representative type.

This kind representative type super lifting device comprises and has surpassed mast 11, should surpass the inner of mast 11 be articulated in the appropriate location on the turntable 12 of hoisting crane or the appropriate location of crane arm 13 afterbodys, tensioner mechanism 14 and back tensioner mechanism 15 before the both sides of its outer end are connected with respectively, the other end of tensioner mechanism 14 is connected in the head of crane arm 13 before above-mentioned, the other end of back tensioner mechanism 15 is connected in turntable 12, and above-mentioned having surpassed between mast 11 and the crane arm 13 is equipped with amplitude oil cylinder 16; When main crane arm stretches out, steel rope on the hoisting mechanism stretches out synchronously with main crane arm, and the pressure by hoist motor is set, the control pull of steel wire, when the amount of deflection of crane arm became big, the pulling force that acts on the steel rope also became big thereupon, thereby improved the strained condition of crane arm, reduce the deflection of crane arm, make hoisting crane have bigger hoisting capacity.

In the representative type super lifting device, it has surpassed mast 11 and has been the elongated rod-shaped structure, this kind structure causes strut buckling easily when stressed, and in the hoisting process of hoisting crane, in case mast 11 unstabilitys occur having surpassed, crane arm 13 can be damaged, and may cause crane arm to fracture when serious, causes above-mentioned super lifting device to have bigger potential safety hazard.

Therefore, how to avoid having surpassed mast generation unstability, improve the functional reliability of super lifting device, guarantee the job security of hoisting crane simultaneously, just become the problem that those skilled in the art need solve.

The utility model content

The purpose of this utility model provides a kind of super lifting device that is used for hoisting crane, can significantly reduce the possibility that has surpassed the mast unstability, thereby has higher functional reliability.Another purpose of the present utility model provides a kind of hoisting crane that comprises above-mentioned super lifting device, and it has good safety performance.

For solving the problems of the technologies described above, the utility model provides a kind of super lifting device that is used for hoisting crane, comprise and surpassed mast, preceding tensioner mechanism and back tensioner mechanism, the two ends of tensioner mechanism surpass the outer end of mast and the head of crane arm is connected with described respectively before described, and the two ends of described tensioner mechanism have afterwards surpassed the outer end of mast and the afterbody of described crane arm is connected with described respectively; Describedly surpassed the strut bar that mast comprises the shoring of foundation parts and is installed on described shoring of foundation component upper ends with its first end, described shoring of foundation parts are connected with described crane arm, and second end of described strut bar is connected with described back tensioner mechanism with described preceding tensioner mechanism.

Preferably, described shoring of foundation parts are carriage.

Preferably, described carriage comprises the vertical bar with suitable radial distance at least, and the bottom of two described vertical bars is installed on described crane arm respectively, and the top of two described vertical bars is connected with described strut bar.

Preferably, between the two described vertical bars link is installed.

Preferably, described link comprises selectively first hook lock and second hook lock of hook mutually, and an end of described first hook lock and arbitrary described vertical bar are hinged, and an end of described second hook lock and another vertical bar are hinged.

Preferably, described first hook lock and described second hook lock are semicircle hook lock.

Preferably, the number of described strut bar is two, radially is installed on the both sides of described carriage respectively.

Preferably, between the two described strut bars telescopic oil cylinder is installed, the scope of the folded acute angle of two described strut bars is 30 ° to 90 °.

The utility model also provides a kind of hoisting crane, comprises crane arm and the super lifting device that is installed on the described crane arm, and described super lifting device is above-mentioned each described super lifting device.

Further, be specially car hosit.

Super lifting device provided by the utility model, be used for hoisting crane, comprise and surpassed mast, preceding tensioner mechanism and back tensioner mechanism, wherein, before the two ends of tensioner mechanism surpassed the outer end of mast and the head of crane arm is connected with described respectively, the two ends of back tensioner mechanism have surpassed the outer end of mast and the afterbody of described crane arm is connected with described respectively; Surpassed mast and comprised the shoring of foundation parts and be installed on the strut bar of shoring of foundation component upper ends with its first end, the shoring of foundation parts are connected with crane arm, and second end of strut bar is connected with the back tensioner mechanism with preceding tensioner mechanism.Should surpass mast and increase shoring of foundation parts, improved the support stiffness that has surpassed mast, having surpassed mast no longer only is the elongated rod-shaped structure, has improved the strut stability that has surpassed mast, reduce the possibility of super lifting device unstability, improved the functional reliability of super lifting device.

A kind of preferred embodiment in, the shoring of foundation parts of super lifting device provided by the utility model can be carriage, this carriage can comprise the vertical bar with suitable radial distance, the bottom of two vertical bars is installed on crane arm respectively, and the top of two vertical bars is connected with two strut bars respectively; This kind tower structure not only can be shared the pressure of strut bar preferably, and its version is comparatively simple, easy to process, and cost is lower.

In another preferred embodiment, the link of super lifting device provided by the utility model can comprise selectively first hook lock and second hook lock of hook mutually, one end of first hook lock and arbitrary vertical bar are hinged, and an end of second hook lock and another vertical bar are hinged; When super lifting device is in running order, with the mutual hook of two hook locks, can play support and bonded assembly effect to two vertical bars, when super lifting device is in off working state, two hook locks can fold and be positioned over the principal arm both sides after opening hook, thereby have reduced the space hold of car load.

Description of drawings

Fig. 1 is used for the structural representation of the super lifting device of hoisting crane for a kind of representative type;

Fig. 2 provides the structural representation of a kind of specific embodiment of super lifting device for the utility model;

Fig. 3 is the partial enlarged drawing of A part among Fig. 2.

The specific embodiment

Core of the present utility model provides a kind of super lifting device that is used for hoisting crane, can significantly reduce the possibility that has surpassed the mast unstability, thereby has higher functional reliability.Another core of the present utility model provides a kind of hoisting crane that comprises above-mentioned super lifting device, and it has good safety performance.

In order to make those skilled in the art person understand the technical solution of the utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Please refer to Fig. 2, Fig. 2 provides the structural representation of a kind of specific embodiment of super lifting device for the utility model.

In a kind of specific embodiment, super lifting device provided by the utility model is used for hoisting crane, comprise and surpassed mast 21, preceding tensioner mechanism 22 and back tensioner mechanism 23, one end of wherein preceding tensioner mechanism 22 is connected with the outer end that has surpassed mast 21, the other end is connected with the head of crane arm 24, one end of back tensioner mechanism 23 is connected with the outer end that has surpassed mast 21, and the other end is connected with the afterbody of crane arm 24; Surpass mast 21 and comprised shoring of foundation parts and strut bar 211, first end of strut bar is installed on the upper end of shoring of foundation parts, the shoring of foundation parts are positioned at and form the inner that has surpassed mast, having surpassed mast is connected with crane arm 24 by the shoring of foundation parts, strut bar 211 forms the outer end that surpass mast, has surpassed second end that mast passes through strut bar and preceding tensioner mechanism 22 and has been connected with back tensioner mechanism 23.

These shoring of foundation parts can be articulated in the appropriate location on the turntable of hoisting crane or the appropriate location of crane arm 24 afterbodys.

Crane arm 24 as herein described can also can be some joint telescopic booms for a joint crane arm; When crane arm 24 be greater than one the joint telescopic boom the time, the afterbody of the crane arm 24 described in the literary composition is meant the afterbody of basic arm, the head of crane arm 24 is meant the head of arbitrary joint telescopic boom.Above-mentioned the inner that has surpassed mast 21 is meant installs the end of back near crane arm 24 afterbodys, and correspondingly, the outer end that has surpassed mast 21 is and an inner relative end.

Tensioner mechanism 22 can be steel rope before above-mentioned, and the one end is fixedly connected on the arm head of crane arm 24, and the other end is connected in the above-mentioned outer end that has surpassed mast 21.Tensioner mechanism 22 can be connected in the arm head of crane arm 24 by fixed support before above-mentioned, thereby improves the safety performance of bonded assembly reliability and device.

Above-mentioned back tensioner mechanism 23 also can be steel rope, and the one end is fixedly connected on the appropriate location of the upper surface of turntable, and the other end is connected in the above-mentioned outer end that has surpassed mast 21.Back tensioner mechanism 23 also is not limited to steel rope, also can be for satisfying other structures and the parts of technical requirements, and pull bar etc. for example.

The mast that surpassed provided by the utility model has increased shoring of foundation parts, improved the support stiffness that has surpassed mast 21, having surpassed mast 21 no longer only is the elongated rod-shaped structure, improved the strut stability that has surpassed mast 21, reduce the possibility of super lifting device unstability, improved the functional reliability of super lifting device.

Can also be further improved super lifting device provided by the utility model.

Please continue with reference to figure 2; In the another kind of specific embodiment, shoring of foundation parts provided by the utility model can be carriage 212, the structure of frame-type not only has structural stability preferably, and it has less deadweight under the condition of equal volume, thereby when guaranteeing in-use performance, reduce the total weight of super lifting device, guaranteed the load-carrying ability of hoisting crane.

The shoring of foundation parts also are not limited to the form of carriage 212, also can be set to the stay bearing plate of appropriate size specification.

The dimensions of carriage 212 should be according to factors such as the tonnage decision of hoisting crane, should guarantee that it has enough rigidity and pressure resistance, because the hoisting crane of different tonnages is to the concrete specification requirement difference of carriage 212, therefore, the concrete size of carriage 212 is not done qualification at this.

Carriage 212 can comprise two vertical bars 2121, has suitable radial distance between the two vertical bars 2121, the bottom of two vertical bars 2121 is installed on crane arm 24 respectively, the top of two vertical bars 2121 is connected with strut bar 211 respectively, the shoring of foundation parts of this kind tower structure not only can be shared the pressure of strut bar 211 preferably, and its version is comparatively simple, and is easy to process, and cost is lower.

It is vertical that two vertical bars 2121 are not limited to its axis, and the axis that is meant bar is on vertical plane, and two vertical bars 2121 can be arranged in parallel substantially, also can have predetermined angle.

Please refer to Fig. 3, Fig. 3 is the partial enlarged drawing of A part among Fig. 2; Between the above-mentioned two vertical bars 2121 link 2122 can be installed,, improve the support of carriage 212 and increase steady ability so that when super lifting device is worked.

Link 2122 between the two vertical bars 2121 can comprise first hook lock 21221 and second hook lock 21222, the selectively mutual hook of first hook lock 21221 and second hook lock 21222, one end of first hook lock 21221 and arbitrary vertical bar 2121 are hinged, and the vertical bar of an end of second hook lock 21222 and another 2121 is hinged; When super lifting device is in running order, with the mutual hook of two hook locks, can play support and bonded assembly effect to two vertical bars 2121, when super lifting device is in off working state, two hook locks can fold and be positioned over the principal arm both sides after opening hook, thereby have reduced the space hold of car load.

First hook lock 21221 and second hook lock 21222 can be semicircle hook lock; Also can be the hook lock of other shapes, for example square hook lock etc.

The number of strut bar 211 provided by the utility model can be two, radially is installed on the both sides of carriage 212 respectively, so that guarantee to have surpassed effect better; The number of strut bar 211 also is not limited to two, also one or more can be set.

Between two strut bars 211 telescopic oil cylinder is installed, so that two strut bars, 211 folded acute angles can change, so that adapt to the job requirement of super lifting device in real time under the effect of telescopic oil cylinder.

The scope of folded acute angle can be 30 ° to 90 ° between two strut bars 211.

Except above-mentioned super lifting device, the utility model also provides a kind of hoisting crane that comprises above-mentioned super lifting device, please refer to prior art about the structure of other each several parts of this hoisting crane, does not repeat them here.

Particularly, above-mentioned hoisting crane can be car hosit.

More than a kind of hoisting crane provided by the utility model and super lifting device 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 (10)

1. super lifting device that is used for hoisting crane, comprise and surpassed mast (21), preceding tensioner mechanism (22) and back tensioner mechanism (23), the two ends of tensioner mechanism (22) surpass the outer end of mast (21) and the head of crane arm (24) is connected with described respectively before described, and the two ends of described tensioner mechanism (23) have afterwards surpassed the outer end of mast (21) and the afterbody of described crane arm (24) is connected with described respectively; It is characterized in that, describedly surpassed the strut bar (211) that mast (21) comprises the shoring of foundation parts and is installed on described shoring of foundation component upper ends with its first end, described shoring of foundation parts are connected with described crane arm (24), and second end of described strut bar (211) is connected with described back tensioner mechanism (23) with described preceding tensioner mechanism (22).
2. the super lifting device that is used for hoisting crane according to claim 1 is characterized in that, described shoring of foundation parts are carriage (212).
3. the super lifting device that is used for hoisting crane according to claim 2, it is characterized in that, described carriage (212) comprises the vertical bar (2121) with suitable radial distance at least, the bottom of two described vertical bars (2121) is installed on described crane arm (24) respectively, and the top of two described vertical bars (2121) is connected with described strut bar (211).
4. the super lifting device that is used for hoisting crane according to claim 3 is characterized in that, between the two described vertical bars (2121) link (2122) is installed.
5. the super lifting device that is used for hoisting crane according to claim 4, it is characterized in that, described link (2122) comprises selectively first hook lock (21221) and second hook lock (21222) of hook mutually, one end of described first hook lock (21221) and arbitrary described vertical bar (2121) are hinged, and an end of described second hook lock (21222) and another vertical bar (2121) are hinged.
6. the super lifting device that is used for hoisting crane according to claim 5 is characterized in that, described first hook lock (21221) and described second hook lock (21222) are semicircle hook lock.
7. according to each described super lifting device that is used for hoisting crane of claim 1 to 6, it is characterized in that the number of described strut bar (211) is two, radially be installed on the both sides of described carriage (212) respectively.
8. the super lifting device that is used for hoisting crane according to claim 7 is characterized in that, between the two described strut bars (211) telescopic oil cylinder is installed, and the scope of the folded acute angle of two described strut bars (211) is 30 ° to 90 °.
9. a hoisting crane comprises crane arm and the super lifting device that is installed on the described crane arm, it is characterized in that described super lifting device is as each described super lifting device of claim 1 to 8.
10. hoisting crane according to claim 9 is characterized in that, is specially car hosit.
CN2010202438198U 2010-06-28 2010-06-28 Crane and superlift apparatus of same CN201694763U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012003767A1 (en) * 2010-07-05 2012-01-12 湖南三一智能控制设备有限公司 Super lift device and telescope arm lift device with the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012003767A1 (en) * 2010-07-05 2012-01-12 湖南三一智能控制设备有限公司 Super lift device and telescope arm lift device with the same

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110105

Termination date: 20130628