Folding movable tower crane

Abstract

The utility model relates to the technical field of tower cranes, and provides a folding movable tower crane which comprises a vehicle, a tower body assembly and a cargo boom assembly. The tower body assembly comprises a first section of tower body, a second section of tower body, a folding connecting piece, a first folding driving piece and a second folding driving piece; the bottom of the first-section tower body is connected with a vehicle; the second folding driving part is supported and connected between the first section of tower body and the second section of tower body and is used for driving the second section of tower body to fold or unfold; the lifting arm assembly comprises a first section of lifting arm, a telescopic lifting arm, a telescopic driving piece and a lifting rope; one end of the first-section crane boom is connected with the top of the second-section tower body, and the other end of the first-section crane boom is connected with a telescopic crane boom; the telescopic driving part is used for driving the telescopic cargo boom to stretch out and draw back; and the lifting rope is suspended below the telescopic lifting arm. The tower crane is convenient to mount and dismount, the coverage radius of the cargo boom can be freely changed, turnover use of the tower crane in a project area is accelerated, the construction progress can be accelerated, and the project cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tower cranes, and particularly relates to a foldable and movable tower crane. Background Art

[0002] When installing a traditional tower crane, a foundation needs to be poured in advance. After the tower crane is installed, its position cannot be changed, which is inconvenient for the tower crane to turn around. Moreover, the length of the boom is planned in the machinery factory before the installation process, and the length of the boom section cannot be adjusted during the operation process, which is prone to safety accidents such as tower crane collisions. At the same time, when the tower crane foundation is set in the inner courtyard, due to the influence of surrounding buildings, it is extremely inconvenient to remove the boom. On the other hand, the installation and disassembly of traditional towers require operators to complete the lifting and lowering of the tower crane standard sections at high altitude, which takes a long time, the process is relatively cumbersome, and there are relatively large hidden dangers at high altitude. Content of the Utility Model

[0003] In view of the above problems in the prior art, the present application proposes a foldable and movable tower crane, which has the characteristics of self-propelling, tower body folding, boom telescoping, etc.

[0004] The utility model proposes a foldable and movable tower crane, including: a vehicle, a tower body assembly and a boom assembly; outriggers for balancing the vehicle are arranged on both sides of the vehicle; the tower body assembly includes a first-stage tower body, a second-stage tower body, a folding connecting piece, a first folding driving member and a second folding driving member; the bottom of the first-stage tower body is connected to the vehicle, and the top of the first-stage tower body is connected to the bottom of the second-stage tower body through the folding connecting piece; the first folding driving member is supported and connected between the vehicle and the first-stage tower body, and is used to drive the first-stage tower body to fold or unfold; the second folding driving member is supported and connected between the first-stage tower body and the second-stage tower body, and is used to drive the second-stage tower body to fold or unfold; the boom assembly includes a first-section boom, a telescopic boom, a telescopic driving member and a hoisting rope; one end of the first-section boom is connected to the top of the second-stage tower body, and the other end is connected with the telescopic boom; one end of the telescopic driving member is connected to the first-section boom, and the other end is connected to the telescopic boom, and is used to drive the telescopic boom to telescope; the hoisting rope is suspended below the telescopic boom.

[0005] Further, the boom assembly further includes a steel wire rope, a support body and a winch; the winch is fixed on the vehicle; the support body is arranged on the top of the second-stage tower body; one end of the steel wire rope is wound and connected to the winch, and the other end is connected to the telescopic boom; the support body tensions the steel wire rope.

[0006] Further, a derrick is further arranged at one end of the first-section boom facing away from the telescopic boom; the derrick tensions the steel wire rope.

[0007] Further, pulleys are respectively arranged on the support body and the derrick, and the pulleys are in tension fit with the steel wire ropes.

[0008] Further, the boom assembly further includes an inner support rod, the bottom of the inner support rod is connected to the vehicle, and the top of the inner support rod is supported and connected to the second tower body section after deployment.

[0009] Further, the folding connecting piece includes a pulling plate, a fixing plate, a connecting rod and a pin; the fixing plate is fixed on both sides of the first tower body section; one end of the pulling plate is connected to the fixing plate through a pin, and the other end is connected to the second tower body section through a pin; one end of the connecting rod is connected to the second tower body section, and the other end is connected to the fixing plate through a pin; the connecting rod is also connected to the second folding driving member.

[0010] Further, both the first folding driving member and the second folding driving member include oil cylinders.

[0011] Further, the telescopic boom includes a second boom section and a third boom section; one end of the second boom section is nested inside the first boom section, and one end of the third boom section is nested inside the second boom section.

[0012] Further, the telescopic driving member includes a first telescopic member and a second telescopic member; the first telescopic member connects the first boom section and the second boom section; the second telescopic member connects the first boom section and the third boom section.

[0013] Further, the telescopic boom further includes a guiding member; the guiding members are respectively arranged between the first boom section and the second boom section and between the second boom section and the third boom section.

[0014] The beneficial effects of the present utility model include:

[0015] 1. The tower crane increases its own height by folding the first tower body section and the second tower body section. Of course, the length and number of sections of each tower body section can also be increased according to project requirements. It abandons the traditional method of installing and disassembling the tower crane by hoisting standard sections, reduces high-altitude operations, and reduces potential safety hazards.

[0016] 2. The tower crane is supported on the ground by the outriggers, and the force received by the tower body assembly is transmitted to the ground through the vehicle and the outriggers, eliminating the need for additional pouring of the tower crane foundation and reducing project costs.

[0017] 3. The transportation and transfer of the tower crane can be completed by the vehicle's own power, abandoning the disadvantage that the positioning point of the tower crane remains fixed after the traditional tower crane foundation is completed, saving a certain amount of project costs.

[0018] 4. The telescopic boom of the boom assembly extends and retracts under the action of a telescopic driving member to change the covering radius of the tower crane, prevent collisions between tower cranes, and meet the covering radius requirements of the project. At the same time, it abandons the defect that the covering radius cannot change after the traditional boom is installed.

[0019] 5. When the traditional tower crane is disassembled in an inner courtyard with a narrow space and not enough operating surfaces, it is easy to encounter the situation where the boom of the tower crane collides with the building and cannot be disassembled.

[0020] 6. The tower body assembly of this tower crane is folded or unfolded through a first folding driving member and a second folding driving member, without the need to reserve a large stacking yard on site to stack standard sections, and has low requirements for site space.

[0021] 7. Compared with the traditional tower crane, which requires a large number of operators and truck cranes for installation and disassembly, this tower crane only needs one operator to independently complete the folding and unfolding of the tower crane in the vehicle cab, saving certain project costs.

[0022] 8. This tower crane is convenient for installation and disassembly, and the covering radius of the boom can be changed arbitrarily, accelerating the turnover and use of tower cranes in the project area, accelerating the construction progress, and saving project costs. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the foldable and movable tower crane of the present utility model.

[0024] Figure 2 It is Figure 1 a partially enlarged schematic structural diagram of

[0025] Figure 3 It is Figure 1 a top view schematic diagram of the boom assembly telescoping of

[0026] In the figure: 1 - vehicle; 2 - leg; 3 - cab; 4 - first tower body section; 5 - second tower body section; 6 - winch; 7 - steel wire rope; 8 - support body; 9 - boom assembly; 91 - first boom section; 92 - second boom section; 93 - third boom section; 10 - hoisting rope; 11 - telescopic driving member; 12 - buckle; 13 - pull plate; 14 - fixing plate; 15 - pin; 16 - connecting rod; 17 - guiding member; 18 - pulley; 19 - derrick; 20 - internal support rod; 21 - second folding driving member. Detailed Embodiments

[0027] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0028] As Figures 1 - 3As shown in the figure, the foldable and movable tower crane of the present utility model includes: a vehicle 1, a tower body assembly, and a boom assembly 9.

[0029] On both sides of the vehicle 1, there are legs 2 for balancing the vehicle 1; there are four legs 2. After driving the vehicle 1 to the designated position, the legs 2 are opened, and the legs 2 are supported on the concrete ground. To prevent damage to the concrete ground, a backing plate or a sleeper can be laid under the lower part of the legs 2. The control buttons of the tower body assembly and the boom assembly 9 are both arranged on the vehicle 1, so that the corresponding control of the folding of the tower body assembly or the telescoping of the boom assembly 9 can be carried out on the ground or in the cab 3 of the vehicle 1.

[0030] The tower body assembly includes a first-section tower body 4, a second-section tower body 5, a folding connecting piece, a first folding driving piece, and a second folding driving piece 21; the bottom of the first-section tower body 4 is connected to the vehicle 1, and the top of the first-section tower body 4 is connected to the bottom of the second-section tower body 5 through the folding connecting piece; the first folding driving piece is supported and connected between the vehicle 1 and the first-section tower body 4, and is used to drive the first-section tower body 4 to fold or unfold; the second folding driving piece 21 is supported and connected between the first-section tower body 4 and the second-section tower body 5, and is used to drive the second-section tower body 5 to fold or unfold;

[0031] The folding connecting piece includes a pull plate 13, a fixing plate 14, a connecting rod 16, and a pin 15; the fixing plate 14 is fixed on both sides of the first-section tower body 4; one end of the pull plate 13 is connected to the fixing plate 14 through the pin 15, and the other end is connected to the second-section tower body 5 through the pin 15; one end of the connecting rod 16 is connected to the second-section tower body 5 through a buckle 12, and the other end is connected to the fixing plate 14 through the pin 15; the buckle 12 clamps the second-section tower body 5, and the connecting rod 16 is also connected to the second folding driving piece 21. Both the first folding driving piece and the second folding driving piece 21 include an oil cylinder, and the control button of the oil cylinder is arranged in the cab 3 of the vehicle 1.

[0032] When the oil cylinder of the first folding driving piece extends, it can drive the first-section tower body 4 to unfold to an upright state. On the contrary, when the oil cylinder of the first folding driving piece contracts, it can drive the first-section tower body 4 to fold until its top is close to the vehicle 1, and the included angle between the first-section tower body 4 and the ground decreases.

[0033] Similarly, when the oil cylinder of the second folding driving piece 21 extends, it can drive the second-section tower body 5 to unfold, and the second-section tower body 5 is docked with the first-section tower body 4, and the included angle between the two is 180 degrees. On the contrary, when the oil cylinder of the second folding driving piece 21 contracts, it can drive the second-section tower body 5 to fold until it is close to the first-section tower body 4, and the included angle between the two decreases. The heights of the first-section tower body 4 and the second-section tower body 5 can be controlled as needed.

[0034] The boom assembly 9 includes a first-section boom 91, a telescopic boom, a telescopic driving piece 11, a hoisting rope 10, a steel wire rope 7, a support 8, and a winch 6.

[0035] One end of the first boom 91 is connected to the top of the second tower body 5, and the other end is connected with a telescopic boom; one end of the telescopic driving member 11 is connected to the first boom 91, and the other end is connected to the telescopic boom for driving the telescopic boom to extend and retract; the hoisting rope 10 is suspended below the telescopic boom. The winch 6 is fixed on the vehicle 1; the support body 8 is arranged on the top of the second tower body 5; one end of the steel wire rope 7 is wound and connected with the winch 6, and the other end is connected with the telescopic boom; the support body 8 tensions the steel wire rope 7. One end of the first boom 91 facing away from the telescopic boom is further provided with a derrick 19; the derrick 19 tensions the steel wire rope 7. Pulleys 18 are respectively arranged on the support body 8 and the derrick 19, and the pulleys 18 are in tension fit with the steel wire rope 7. The winch 6 can release or take up the steel wire rope 7 according to the height of the tower body assembly to control the length of the steel wire rope 7, so that the steel wire rope 7 is always in a taut state, increasing the safety and stability of the tower crane. Prevent the boom assembly 9 from being damaged by folding after being stressed.

[0036] The boom assembly 9 further includes an inner support rod 20, the bottom of the inner support rod 20 is connected to the vehicle 1, and the top of the inner support rod 20 supports and connects the unfolded second tower body 5. The inner support rod 20 is movably arranged. When the tower body assembly is unfolded to the state as shown in Figure 1 shown, in order to ensure the stable force of the tower body assembly, the inner support rod 20 is supported between the vehicle 1 and the second tower body 5.

[0037] As Figure 3 shown, the telescopic boom includes a second boom 92 and a third boom 93; one end of the second boom 92 is nested in the first boom 91, and one end of the third boom 93 is nested in the second boom 92. The telescopic driving member 11 includes a first telescopic member and a second telescopic member; the first telescopic member connects the first boom 91 and the second boom 92; the second telescopic member connects the first boom 91 and the third boom 93. The telescopic boom further includes a guiding member 17; guiding members 17 are respectively arranged between the first boom 91 and the second boom 92, and between the second boom 92 and the third boom 93. The guiding member 17 can be a guiding block or a guiding wheel, which can guide the telescopic trajectories of the second boom 92 and the third boom 93. The first telescopic member and the second telescopic member can both adopt oil cylinders, and the extension and retraction of the oil cylinders are used to control the extension and retraction of the second boom 92 and the third boom 93, so as to change the coverage radius of the tower crane.

[0038] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. A foldable and movable tower crane, characterized in that, Comprising: A vehicle, a tower body assembly and a boom assembly; Outriggers for balancing the vehicle are provided on both sides of the vehicle; The tower body assembly includes a first tower section, a second tower section, a folding connecting member, a first folding driving member and a second folding driving member; the bottom of the first tower section is connected to the vehicle, and the top of the first tower section is connected to the bottom of the second tower section through the folding connecting member; the first folding driving member is supported and connected between the vehicle and the first tower section for driving the first tower section to fold or unfold; the second folding driving member is supported and connected between the first tower section and the second tower section for driving the second tower section to fold or unfold; The boom assembly includes a first boom section, a telescopic boom, a telescopic driving member and a lifting rope; one end of the first boom section is connected to the top of the second tower section, and the other end is connected with the telescopic boom; One end of the telescopic driving member is connected to the first boom section, and the other end is connected to the telescopic boom for driving the telescopic boom to telescope; The lifting rope is suspended below the telescopic boom.

2. A foldable and movable tower crane according to claim 1, characterized in that, The boom assembly further includes a steel wire rope, a support body and a winch; the winch is fixed on the vehicle; the support body is arranged on the top of the second tower section; one end of the steel wire rope is wound and connected with the winch, and the other end is connected with the telescopic boom; The support body tensions the steel wire rope.

3. The folding and movable tower crane according to claim 2, characterized in that, A derrick is further arranged at one end of the first boom section facing away from the telescopic boom; the derrick tensions the steel wire rope.

4. A foldable and movable tower crane according to claim 3, characterized in that, Pulleys are respectively arranged on the support body and the derrick, and the pulleys are in tension fit with the steel wire rope.

5. A foldable and movable tower crane according to claim 1, characterized in that, The boom assembly further includes an inner support rod, the bottom of the inner support rod is connected to the vehicle, and the top of the inner support rod is supported and connected to the unfolded second tower section.

6. A foldable and movable tower crane according to claim 1, characterized in that, The folding connecting member includes a pull plate, a fixing plate, a connecting rod and a pin; the fixing plate is fixed on both sides of the first tower section; one end of the pull plate is connected to the fixing plate through the pin, and the other end is connected to the second tower section through the pin; one end of the connecting rod is connected to the second tower section, and the other end is connected to the fixing plate through the pin; the connecting rod is further connected to the second folding driving member.

7. A foldable and movable tower crane according to claim 6, characterized in that, Both the first folding driving member and the second folding driving member include an oil cylinder.

8. A foldable and movable tower crane according to claim 1, characterized in that, The telescopic boom includes a second boom section and a third boom section; one end of the second boom section is nested inside the first boom section, and one end of the third boom section is nested inside the second boom section.

9. The foldable and movable tower crane according to claim 8, wherein, The telescopic driving member includes a first telescopic member and a second telescopic member; the first telescopic member connects the first boom section and the second boom section; the second telescopic member connects the first boom section and the third boom section.

10. A foldable and movable tower crane according to claim 8, characterized in that, The telescopic boom further includes a guiding member; the guiding member is respectively arranged between the first boom section and the second boom section and between the second boom section and the third boom section.

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