Hydraulic dismounting device for tower body connecting pin shaft of tower crane

Abstract

The utility model discloses a tower crane tower body connecting pin shaft hydraulic dismantling device which is characterized in that a tower crane tower body is formed by stacking and building a plurality of tower body units, main chord members of the tower body units are in butt joint up and down, and connecting heads of the main chord members of the lower tower body unit are inserted into connecting sleeves of the main chord members of the upper tower body unit; during installation, the connecting pin shafts penetrate through the corresponding pin shaft holes in the connecting sleeves and the connecting heads to lock the adjacent tower body units, the connecting device is characterized by comprising a hydraulic pushing device, the hydraulic pushing device is installed on the tower body units and used for pushing the connecting pin shafts out of the pin shaft holes, the hydraulic pushing device is provided with a first installation part and a second installation part, and the first installation part and the second installation part are different in height. The pushing auxiliary assembly comprises a pull rod, a front end cross beam and a rear end cross beam. The connecting pin shaft is pushed out of the pin shaft hole by the hydraulic pushing device, so that the dismounting of the tower body of the tower crane is convenient, quick, safe and reliable.

Description

Technical Field

[0001] The utility model relates to a device for removing a connecting pin shaft of a tower crane tower body. Background Art

[0002] The tower crane tower is constructed by stacking several tower units. Figure 1 The tower unit has multiple vertically arranged tower main chords 5, the lower end of each main chord has a connecting sleeve, and the upper end of each main chord has a connecting head 4. The tower unit connects the tower transverse web 9 and the diagonal web 8 of the tower main chord. When the tower units are stacked and built, the tower unit main chords are butt-jointed up and down, and the connecting head of the main chord of the lower tower unit is inserted into the connecting sleeve of the main chord of the upper tower unit. The connecting head and the connecting sleeve have corresponding pin holes. During installation, the connecting pin 6 passes through the connecting sleeve and the connecting head to lock the adjacent tower units. When dismantling the tower crane tower body, it is necessary to manually push the connecting pin out of the pin hole. Since the tower crane is in an open-air working scene, it is difficult to dismantle the connecting pin due to rust caused by wind, sun, rain and so on. Therefore, the dismantling method needs to be improved. Utility Model Content

[0003] The main purpose of the utility model is to provide a hydraulic dismantling device for a tower crane tower body connecting pin shaft, so as to solve the technical problem that the current connecting pin shaft is difficult to dismantle.

[0004] The technical solution of the present utility model is achieved as follows:

[0005] A hydraulic dismantling device for connecting the tower body pins of a tower crane, wherein the tower crane tower is constructed by stacking a plurality of tower body units, the tower body units having a plurality of vertically arranged tower body main chords and transverse webs connecting the main chords, the lower end of each main chord having a connecting sleeve, and the upper end of each main chord having a connecting head. When the tower body units are stacked and constructed, the main chords of the tower body units are butted up and down, and the connecting head of the main chord of the lower tower body unit is inserted into the connecting sleeve of the main chord of the upper tower body unit. The connecting head and the connecting sleeve have corresponding pin holes, and when installing, the connecting pin passes through the connecting sleeve along the pin hole. The sleeve and the connecting head lock the adjacent tower units, and are characterized in that: it includes a hydraulic pushing device, which is installed on the transverse web of the tower unit, and uses hydraulic power to push the connecting pin out of the pin hole. The hydraulic pushing device has a first mounting part and a second mounting part with two different heights. During installation, the first mounting part or the second mounting part is installed on the transverse web of the tower body, and a group of pushing auxiliary parts. The group of pushing auxiliary parts includes a pull rod, a front end cross beam installed on the outside of the main chord of the tower body, and a rear end cross beam installed on the outside of the rear cover of the hydraulic pushing device cylinder. The pull rod connects the front end cross beam and the rear end cross beam.

[0006] Compared with the prior art, the utility model has the following effects: the connecting pin shaft of the utility model is pushed out of the pin shaft hole by the hydraulic pushing device, which makes it convenient, fast, safe and reliable to dismantle the tower body of the tower crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 The figure is a schematic diagram of the structure and pin connection of the tower unit of an existing tower crane.

[0008] Figure 2 The partial schematic diagram of the utility model shows the partial tower body when the hydraulic jacking device is installed;

[0009] Figure 3 This is one of the schematic diagrams for installing the hydraulic jacking device of the present invention, showing that the hydraulic jacking device is installed on the transverse web of the tower body;

[0010] Figure 4 This is the second installation diagram of the hydraulic jacking device of the utility model, showing different installation positions of the hydraulic jacking device on the transverse web of the tower body;

[0011] Figure 5 This is a schematic structural diagram of the utility model. DETAILED DESCRIPTION

[0012] When the embodiments of the present application refer to ordinal numbers such as "first" and "second", unless they do express the meaning of order according to the context, they should be understood as being merely for the purpose of distinction.

[0013] Below, the present invention is further described with reference to the accompanying drawings and specific embodiments:

[0014] like Figure 2 、 Figure 3 and Figure 4 、 Figure 5As shown, a tower crane tower connecting pin hydraulic dismantling device, the tower crane tower is composed of a plurality of tower units 1 stacked together, the tower unit has a plurality of vertically arranged tower main chords 11, the lower end of each main chord has a connecting sleeve, the upper end of each main chord has a connecting head, when the tower units are stacked together, the tower unit main chords are butted up and down, the connecting head of the lower tower unit main chord is inserted into the connecting sleeve of the upper tower unit main chord, the connecting head and the connecting sleeve have corresponding pin holes, when installed The connecting pin 14 passes through the connecting sleeve and the connecting head along the pin hole to lock the adjacent tower units, and the hydraulic jacking device 2 is installed on the tower unit. The connecting pin is pushed out of the pin hole by hydraulic power. The tower unit has a tower transverse web bar that is transversely connected to the main chord of the tower body. The hydraulic jacking device is installed on the transverse web bar 13 of the tower body. The hydraulic jacking device 2 has a first mounting portion 21 and a second mounting portion 22 of two different heights. During installation, the first mounting portion or the second mounting portion is selected to be installed on the tower transverse web bar. In this embodiment, Figure 2 、 Figure 3 The second mounting portion 22 is selected to be mounted on the transverse web of the tower body. The piston rod 23 of the hydraulic jacking device is on the same axis as the connecting pin 14. A set of jacking auxiliary components 3 are provided. The jacking auxiliary components include a pull rod 31, which connects the tower body and the oil cylinder 24 of the hydraulic jacking device. When the piston rod of the hydraulic jacking device pushes the connecting pin, the pull rod can balance the cylinder body. The jacking auxiliary component also includes a rear end cross beam 32 fixed to the rear cover of the oil cylinder of the hydraulic jacking device, and a jacking auxiliary component installed on the outside of the main chord of the tower body. The front crossbeam 33, the pull rod connects the rear crossbeam and the front crossbeam, the pull rod is connected to the oil cylinder of the hydraulic jacking device with the help of the rear crossbeam, the pull rod is connected to the tower body with the help of the front crossbeam, the center opening of the front crossbeam is for the connecting pin to pass through, the rear end crossbeam passes through the axis of the piston rod 23, when the hydraulic jacking device pushes the connecting pin, the rear end crossbeam is abutted and installed on the outside of the cylinder rear cover, the front end crossbeam is installed and abutted on the outside of the main chord of the tower body, and the two ends of the pull rod pass through the front end crossbeam and the rear end crossbeam to connect the main chord of the tower body with the hydraulic jacking device.

[0015] refer to Figures 2 to 5 , showing that the installation angle of the rear end cross beam installed on the rear cover of the cylinder is adjustable, and the jacking auxiliary component rotates along the axis of the push rod along the installation angle of the rear end cross beam, so that the jacking auxiliary component can avoid the interference of the diagonal web member 15 of the tower unit.

[0016] refer to Figure 4 , showing that the hydraulic jacking device 2 uses the first mounting part 21 to be installed on the transverse web of the tower body to cope with the need to remove the connecting pin 14 at another height. When the hydraulic jacking device uses the first mounting part or the second mounting part to be installed on the transverse web of the tower body, two different axis heights are required.

Claims

1. A hydraulic dismantling device for a tower crane tower connecting pin shaft, wherein the tower crane tower is constructed by stacking a plurality of tower units, each tower unit having a plurality of vertically arranged tower main chords and transverse webs connecting the main chords, the lower end of each main chord having a connecting sleeve, and the upper end of each main chord having a connecting head. When the tower units are stacked and constructed, the tower unit main chords are butted up and down, and the connecting head of the lower tower unit main chord is inserted into the connecting sleeve of the upper tower unit main chord, the connecting head and the connecting sleeve having corresponding pin shaft holes. During installation, the connecting pin shaft passes through the connecting sleeve and the connecting head along the pin shaft hole to lock the adjacent tower units. The device is characterized in that: It includes a hydraulic jacking device, which is installed on the transverse web of the tower unit and uses hydraulic power to push the connecting pin out of the pin hole. The hydraulic jacking device has a first mounting part and a second mounting part at two different heights. During installation, the first mounting part or the second mounting part is installed on the transverse web of the tower body, and a group of jacking auxiliary parts. The group of jacking auxiliary parts includes a pull rod, a front end cross beam installed on the outside of the main chord of the tower body, and a rear end cross beam installed on the outside of the rear cover of the hydraulic jacking device cylinder. The pull rod connects the front end cross beam and the rear end cross beam.

2. A tower crane tower body connecting pin hydraulic removal device according to claim 1, characterized in that When the hydraulic jacking device is installed on the tower body transverse web using the first installation part or the second installation part, two different axis center heights are generated.

Images