CN201756422U - Two-head-suspension tower crane - Google Patents

Abstract

The utility model relates to a two-head-suspension tower crane, which is used for construction sites such as buildings, water conservancy, electric power, roads, stations, docks, petrochemical industry, nuclear power stations and the like. A tower crane in the prior art is only provided with a lifting arm and a head suspension, and is low in hoisting efficiency. The two-head-suspension tower crane is characterized in that the observation front surface of a cab (16) is parallel to a rotary tower body (9) in a spaced manner, the cab (16) is mounted on an upper support (8), a lifting mechanism (11) mounted on a lifting arm (12) is further arranged on the right surface of the rotary tower body (9), the lifting arm is arranged on the left surface of the rotary tower body (9) of the tower crane, one end of a lifting arm short pull rod (13) is obliquely arranged on the lifting arm, the other end of the lifting arm short pull rod (13) is obliquely arranged in the middle of a tower plate, and one end of a lifting arm long pull rod (14) is obliquely arranged on the lifting arm. Compared with the prior art, the tower crane doubles hoisting efficiency.

Description

Two tower crane formula hoisting crane

One, technical field

Two tower crane formula hoisting crane that use in building sites such as the utility model is used to build, water conservancy, electric power, highway, station, harbour, petrochemical industry, nuclear station.

Two, background technology

Existing technology tower crane has only one of a crane arm to hang, and lifting efficient is not high.

Three, utility model content

1. the purpose of this utility model is a kind of two of design tower crane formula hoisting crane; Tower crane removes equilibrium arm and balance arm brace, and a cover crane arm is installed again, a cover crane arm long draw, a cover crane arm short rod.All there is crane arm on the right side, the slewing tower left side of tower crane.

2. two tower crane formula hoisting crane is characterized in that: there is crane arm on the slewing tower left side of tower crane, crane arm short rod one end is oblique on crane arm, crane arm short rod one end is oblique in the middle of column plate, crane arm long draw one end is oblique on crane arm, crane arm long draw one end is oblique in the middle of column plate, the root of crane arm has lifting mechanism, and two on the pulley of tower head plate is symmetrical, and driver's cab is observed positive parallel with slewing tower apart.Driver's cab is installed, Yi Bian allow on the crane arm advertising panel is installed on upper bracket.The known electrical apparatus control circuit of electrical apparatus control circuit of two tower crane formula hoisting crane, the slewing tower right side also have lifting mechanism, luffing mechanism, suspension hook, the load-carrying dolly installed on the crane arm to be equal to that installed device is the same model and specification on the crane arm on the left side.The installation method of two tower crane formula hoisting crane has not together, after installing the pinnacle of a pagoda, the slewing tower height is about 22m, to become splayed to fix with two steel cable wind ropes on the slewing tower, swing type mechanism is braked, crane arm installs back (following installation is all pressed existing regulation and installed) by existing standard, lifting mechanism is installed again, at the crane arm that steel cable wind rope opposite is installed, crane arm with crane lifting is installed, with rising mechanism's pull-up respectively, crane arm short rod, crane arm long draw are installed, after crane arm, crane arm pull bar install.Steel cable wind rope the crane arm here is installed again, and with rising mechanism's pull-up respectively, crane arm short rod, crane arm long draw are installed, after crane arm, crane arm pull bar install.The steel cable wind rope is dismantled.Slewing gear brake is unclamped.After hanging by existing standard mode, test run, examination, use by safety supervision approval back.

3. the utility model is compared with known technology, and tower crane lifting efficient doubles, and saves 30% manufacturing cost, saves a body of the tower, saves a basic expense, saves 15% transportation volume.

Four, description of drawings

The utility model accompanying drawing 1 is a front view, and the utility model accompanying drawing 2 is a planar view.

Five, the specific embodiment

In conjunction with the accompanying drawings 1,2 describe: foundation for tower crane as prescribed is at the scene built, base section [3] is upward installed (following installation all has by existing regulation installation) by existing regulation at foundation for tower crane [1], with the fastening base section of nut [2] [3], base section [3] is gone up installation code joint [4] the secondary fastening standard knot [4] of high strength bolt, standard knot [4] is gone up undersetting [7] is installed, stock [6] is installed below the undersetting [7], undersetting is equipped with pivoting support on [7], upper bracket [8] is installed on the pivoting support, go up installation driver's cab [16] at upper bracket [8], go up installation slewing tower [9] at upper bracket [8], slewing tower [9] go up to be installed pinnacle of a pagoda [10], install pinnacle of a pagoda [10] after, slewing tower [9] height is about 22m, to become splayed to fix with two steel cable wind ropes on the slewing tower [2], swing type mechanism is braked.Go up installation lifting mechanism [11], luffing mechanism, load-carrying dolly at crane arm [12].The crane arm [12] on steel cable wind rope opposite is installed, with crane lifting crane arm [12], the otic placode hole of crane arm links to each other with the otic placode hole of slewing tower [2] with bearing pin, with rising mechanism [11] pull-up respectively, crane arm short rod [13], crane arm long draw [14] are installed, the suspension centre hole of crane arm links to each other with the otic placode hole of pull bar with bearing pin, and the otic placode hole of pull bar links to each other with the hole of tower head plate, after crane arm, crane arm pull bar install.Steel cable wind rope the crane arm here is installed again.After earlier crane arm [12] being connected into an integral body, lifting mechanism [11], luffing mechanism, load-carrying dolly are installed at crane arm [12].Crane arm [12] with crane lifting, with rising mechanism [11] pull-up respectively, crane arm short rod [13], crane arm long draw [14] are installed, and the suspension centre hole of crane arm links to each other with the otic placode hole of pull bar with bearing pin, the otic placode hole of pull bar links to each other with the hole of tower head plate, after crane arm rises, the weighing arm pull bar installs.Also to install the suspension hook on both sides.Allow on the crane arm advertising panel is installed on one side.The steel cable wind rope is dismantled.Slewing gear brake is unclamped.After hanging by existing standard mode, test run, examination, use by safety supervision approval back.

Claims (1)

1. two tower crane formula hoisting crane, driver's cab [16] is observed positive parallel with slewing tower [9] apart, go up installation driver's cab [16] at upper bracket [8], slewing tower [9] right side also has a crane arm [12] to go up the lifting mechanism of installing [11], it is characterized in that: there is crane arm on the slewing tower of tower crane [9] left side, crane arm short rod [13] one ends are oblique on crane arm, crane arm short rod [13] one ends are oblique in the middle of column plate, crane arm long draw [14] one ends are oblique on crane arm, crane arm long draw [14] one ends are oblique in the middle of column plate, the root of crane arm [12] has lifting mechanism [11], [15] two on the both sides pulley of tower head plate.

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