RU2106295C1 - Boom of high load capacity truck crane - Google Patents

Boom of high load capacity truck crane Download PDF

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Publication number
RU2106295C1
RU2106295C1 RU96107357A RU96107357A RU2106295C1 RU 2106295 C1 RU2106295 C1 RU 2106295C1 RU 96107357 A RU96107357 A RU 96107357A RU 96107357 A RU96107357 A RU 96107357A RU 2106295 C1 RU2106295 C1 RU 2106295C1
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Russia
Prior art keywords
boom
jib
truck crane
base
shunting
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RU96107357A
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Russian (ru)
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RU96107357A (en
Inventor
Николай Егорович Храмов
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Николай Егорович Храмов
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Priority to RU96107357A priority Critical patent/RU2106295C1/en
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Publication of RU2106295C1 publication Critical patent/RU2106295C1/en
Publication of RU96107357A publication Critical patent/RU96107357A/en

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Abstract

FIELD: material handling facilities; truck cranes on special base chassis for mounting ground structures. SUBSTANCE: high capacity truck crane boom has base, power cylinders with centralized drive, cable-sheave system, turnable with counter-weight on truck crane slewing circle. Base is made of even number of parallel support sections, each being rigidly connected by crossmembers to form lengthwise rectangular aperture. Gooseneck attachment is installed in aperture to travel relative to common axis. Gooseneck attachment is coupled with boom portal in four points. EFFECT: enlarged operating capabilities. 2 cl, 5 dwg

Description

 The invention relates to the field of hoisting and transport engineering, and more particularly to mounting automotive cranes of increased carrying capacity, on a special base chassis of an automobile type for the contour of land-based stationary structures.
 The urgency of the problem is caused by the lack of domestic high-performance machines with increased carrying capacity, for example, over 300 tons on an automobile-type chassis, although it is known that a number of companies work abroad in this direction: "Lana", Spain; Tadana, Japan; "Lierherr", Germany and others.
 A movable boom support is known in which one end of the support stand is pivotally connected to the boom head, the other to a slider movable along a support surface made in the form of an obliquely mounted frame with tilt angles that can be changed by means of power cylinders, and the slider moves along the support surface under the influence of a jack . (Jib self-propelled cranes and cargo slinging. Handbook, Moscow: Metallurgy, 1990, p.239, Fig. 5.15).
 The disadvantage of this technical solution is the low carrying capacity and complexity in equipment, transportation and configuration during the preparatory work.
 Known telescopically connected in it box-shaped extension sections associated with long-stroke section extension cylinders, the rods of which are provided with at least one intermediate support mounted on the rod with the possibility of longitudinal movement relative to the latter, and each section is made with stops for interaction with the intermediate support in position her ultimate nomination. In addition, the intermediate support is connected to the cylinder body and with each other using telescopic rods, and the intermediate support is spring-loaded relative to the cylinder rod (ed. St. USSR N 952721, class B 66 C 23/68, 1982).
 A disadvantage of the known technical solution is the not significant lifting capacity of the telescopic boom.
 Closest to the technical nature of the proposed technical solution is a telescopic boom containing a stationary and telescopically connected to it retractable box-shaped sections and long-stroke cylinders for extending the sections. (USSR patent N 523630, class B 66 C 23/63, 1972).
 A disadvantage of the known technical solution is the low carrying capacity.
 The aim of the invention is the creation of a truck with increased efficiency by increasing capacity, expanding technological capabilities and increasing operational reliability.
 To achieve this goal, the claimed invention "Boom truck crane of high carrying capacity" contains common essential features expressed by certain concepts. The combination of these features contains fixed and telescopically connected with it retractable sections of a box-shaped and long-stroke cylinders of the retractable section.
 In relation to the prototype, the claimed invention has distinctive features, namely, that the base of the boom is made in the form of an even number of parallel supporting sections, each of which is rigidly connected by cross members, and as a whole form a rectangular opening between them along the entire length, with which movement relative to the common axis of the shunting jib, and the shunting jib is interconnected with the boom portal along four point systems, the axes of which are mutually perpendicular to each other, by means of a hydraulic cylinder The bow and the head of the boom with an eye, in addition, the shunting jib has an mounting substrate on the eye.
 Between the distinguishing features and the purpose of the invention there is a causal relationship in which the technical result is due to a positive effect in the form of increased efficiency by increasing the load capacity of the boom, expanding technological capabilities and increasing operational reliability.
 The totality of the claimed invention from the prior art for specialists does not explicitly follow, at the same time, the obtained positive effect in the total set of features differs the claimed technical solution from the prototype, which allows us to conclude that it meets the criterion of "Inventive step".
 The set of essential features characterizing the essence of the invention can be repeatedly used in a truck, which allows us to conclude that the invention meets the criterion of "Industrial applicability".
 Figure 1 is a General view of the device when lifting high-tonnage cargo; in FIG. 2 - general view of the device when lifting cargo up to 50 tons; figure 3 is a view of the arrow from above in the transport position; figure 4 is a side view of the arrow in the transport position; figure 5 is a cross-sectional view of the arrow aa.
The boom 1 of a high-capacity truck crane 2 includes the base of a boom of a rigid, welded construction with oncoming telescopic power hydraulic cylinders 3 of the drive of the retractable sections 4-6. In addition, the base of the boom 1 is made in the form of an even number of parallel supporting sections 7, 8, each of which is rigidly connected by crossbars 9 and as a whole form a rectangular one along the entire length "
Figure 00000002
"- a shaped opening in which the shunting jib 11 of the auxiliary lifting is mounted relative to the common axis 10, the boom 1 is generally located and fixed at one end on the turntable 12 of the turntable 13 of the truck crane 2 and is interconnected with the power hydraulic cylinders 14 for moving the boom 1 connected , in turn, with the plate 15 of rigidity of the boom 1. The jib 11 of the welded structure, laid on the base of the boom 1, is interconnected with the boom 1 in a four-point system, the axes of which are mutually perpendicular to each other and made by means of the hydraulic cylinder 16 and the tip 17 of the base of the boom 1 with the eye 18 through the connecting pin 19, the rollers 20 of the cable system 21 with the rack 22 of the portal of the boom 1 with the scarf 23. The head 17 of the boom 1 includes on the axes 24 blocks of rollers 25 of the main lift. The heading 26 of the shunting jib 11 has a block of rollers 27 of the auxiliary lifting hook 28 with a mounting substrate 29.
 The truck crane 2 is equipped with hydraulic supports 30, and the rotary platform 12 includes counterweights 31 with hydraulic cylinders 32 of the drive from the movement. All hydraulic cylinders 3, 14, 16, 32 are powered from the general hydraulic system of the truck crane 2.
To carry out lifting and transporting work to move the load, the crane 2 is transferred from the transport position to the working one. To do this, it is first installed on the original workstation for lifting operations. Then the chassis of the truck crane 2 is mounted on the supports 30 and the counterweights 31 are put into operation under the action of the power hydraulic cylinder 32. Next, to carry out the work under the action of the hydraulic cylinders 14, the base of the telescopic boom 1 is raised. Under the action of the power telescopic hydraulic cylinders 3, sections 4-6 are pulled out of the supporting sections 7 8 arrows 1 by the value of the required technological lifting operation. After that, the transported load is hooked by means of a hook 33 through the cable block system 21 of the main lift and due to the possible movement of the turntable 12 on the turntable 13 of the crane 2 is moved to a predetermined technological mark. In this position, it is possible to carry out lifting operations of especially heavy loads, for example, for 300 tons or more. To carry out work on the same base and technological working elevation with a low-tonnage load of up to 50 tons, it is possible to carry out lifting operations by shunting jib 11. For this, the folded jib 11 of the auxiliary lift is brought out of the transport position from the rectangular "
Figure 00000003
"- shaped opening of the boom 1 by turning it relative to the common axis 10 in the four-point coupling system by means of the hydraulic cylinder 16 and the head 17 of the arrow 1 with the eye 18 relative to the common axis 10, rollers 20 of the cable-block system 21 on the rack 22 of the portal of the boom 1, axes 24 of the roller block 25 the main lift and the guide rope of the cable block system 21 auxiliary lift.
 After the jib 11 with the strut 22 is returned to its original operating position, the hydraulic cylinder 16 is turned off, and the load is lifted only by the block of rollers 27 of the hook 28 of the cable block system 21 of the auxiliary lifting on the head 26 of the jib 11. All hydraulic cylinders 3, 14, 16, 32 are driven from the general hydraulic system of the truck crane 2. After all lifting and handling operations, the jib +1 of the boom 1 and the truck crane 2 as a whole are moved to the transport position in the reverse order.
The use of the base of the boom 1 in the form of an even number of parallel supporting sections 7, 8 can significantly increase the carrying capacity of the boom 1 and the truck crane as a whole 2. The connection of the supporting sections 7, 8 of the base of the boom 1 with crossbars 9 to form a rectangular along the entire length
Figure 00000004
- the shaped opening allows you to strengthen the structural strength of the base of the boom 1 and makes it possible to fold the shunting jib 11, the rack 22 of the portal with the cable block system 21 onto the stiffener 9, provides the possibility of eliminating the laborious operations of mounting and dismounting the shunting jib 1 in the working or transport position, without violating the conditions of the requirements of overall dimensions in height, it is also the supporting base for the shunting jib 11, rack 22 of the portal and cable block system 21 in the transport position. The presence of the mounting substrate 29 on the shunting jib 11 provides a convenient translation of the auxiliary lifting load hook 28 when the shunting jib 11 is installed in the working or transport position. The presence of the scarf 23 allows you to securely fasten the shunting jib 11 with the help of finger joints relative to their common axis 10 and increases the lateral-axial stability of the shunting jib 11 when moving the load.
 The application of the claimed technical solution as a whole, for example, in the construction of large industrial facilities (nuclear power plants, thermal power plants, etc.) will allow more efficient installation of facilities through the use of a domestic truck with increased carrying capacity, for example, a truck crane with a carrying capacity of over 300 tons without resorting to the services of foreign firms.

Claims (2)

 1. The boom of a high-capacity truck crane, containing fixed and telescopically connected with it retractable box-shaped sections, characterized in that the base of the boom is made in the form of an even number of parallel supporting sections, each of which is rigidly connected by cross members, and generally forms along the entire length a rectangular opening in which a shunting jib is mounted with the possibility of moving relative to the common axis, the shunting jib is interconnected with the boom portal in a four-point system, the axes of which are imno perpendicular to each other by means of the hydraulic cylinder and the boom tip with the eye.
 2. The boom according to claim 1, characterized in that the shunting jib has an mounting substrate on the eye.
RU96107357A 1996-04-03 1996-04-03 Boom of high load capacity truck crane RU2106295C1 (en)

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RU96107357A RU96107357A (en) 1998-05-20

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011087398A1 (en) * 2010-01-12 2011-07-21 Корчагина Марина Евгеньевна Lift crane system
WO2012080455A1 (en) * 2010-12-17 2012-06-21 Tadano Faun Gmbh Mobile telescopic crane
WO2013141892A1 (en) * 2012-03-21 2013-09-26 Mark Bobeck Kingpost crane apparatus & method

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2524893A1 (en) * 2010-01-12 2012-11-21 Korchagin, Pavel Vladimirovich Lift crane system
WO2011087398A1 (en) * 2010-01-12 2011-07-21 Корчагина Марина Евгеньевна Lift crane system
EP2524893A4 (en) * 2010-01-12 2013-07-10 Pavel Vladimirovich Korchagin Lift crane system
US9376292B2 (en) 2010-12-17 2016-06-28 Tadano Faun Gmbh Mobile telescopic crane
WO2012080452A1 (en) * 2010-12-17 2012-06-21 Tadano Faun Gmbh Mobile telescopic crane
CN103261083A (en) * 2010-12-17 2013-08-21 多田野发运有限公司 Mobile telescopic crane
CN103269970A (en) * 2010-12-17 2013-08-28 多田野发运有限公司 Mobile telescopic crane
US9637358B2 (en) 2010-12-17 2017-05-02 Tadano Faun Gmbh Mobile telescopic crane
WO2012080455A1 (en) * 2010-12-17 2012-06-21 Tadano Faun Gmbh Mobile telescopic crane
RU2547492C2 (en) * 2010-12-17 2015-04-10 Тадано Фаун Гмбх Movable telescopic lifting crane
RU2548652C2 (en) * 2010-12-17 2015-04-20 Тадано Фаун Гмбх Movable telescopic hoisting crane
CN103269970B (en) * 2010-12-17 2015-04-29 多田野发运有限公司 Mobile telescopic crane
CN103261083B (en) * 2010-12-17 2015-04-29 多田野发运有限公司 Mobile telescopic crane
US8863966B2 (en) 2011-03-21 2014-10-21 Dynaking Crane, Llc Kingpost crane apparatus and method
US9738496B2 (en) 2011-03-21 2017-08-22 Dynaking Crane, Llc Kingpost crane apparatus and method
WO2013141892A1 (en) * 2012-03-21 2013-09-26 Mark Bobeck Kingpost crane apparatus & method

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