CN110902561A

CN110902561A - Novel tower machine curve walking device

Info

Publication number: CN110902561A
Application number: CN201911088053.2A
Authority: CN
Inventors: 许贵林; 黄建军; 马坤月
Original assignee: Zhongsheng Heavy Industry Co Ltd
Current assignee: Zhongsheng Heavy Industry Co Ltd; Zhongsheng Construction Machinery Nanjing Heavy Industry Co Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-03-24

Abstract

The invention discloses a novel tower crane curve walking device. The device includes curve track and running gear, the curve track includes two rail, running gear is including the frame that is used for bearing tower machine standard festival, the frame downside is equipped with two line wheelset mechanisms, each wheelset mechanism includes the connecting seat of being connected with the frame, the setting is at the tie-beam of connecting seat downside and rotatable coupling drive wheelset and driven wheelset of tie-beam downside, drive wheelset and driven wheelset include respectively with wheel carrier and a plurality of setting on the wheel carrier and with curve track roll connection's gyro wheel, the periphery of gyro wheel is equipped with spacing rim and rolling surface, at least one gyro wheel is connected with driver part on each drive wheelset. The invention ensures the coordination between the inner and outer ring speeds and the rail by setting the driving speeds of the inner and outer ring driving components, the leaning wheel is arranged to prevent the wheel rim from contacting with the steel rail, and meanwhile, the driven wheel set and the driving wheel set can rotate around the connecting frame, thereby satisfying the curved rail walking and effectively preventing the locking phenomenon.

Description

Novel tower machine curve walking device

Technical Field

The invention relates to the field of tower crane curve traveling devices, in particular to a novel tower crane curve traveling device.

Background

In large venue construction, some venue profiles are curved in radians. In the construction process, in order to improve the utilization rate of the tower crane, the tower crane is close to a building as much as possible, so that in the construction of some large-scale venues, the walking tower crane is adopted, and meanwhile, a curved track is adopted, and the track curve is similar to the appearance of the building.

In the curve walking process, the wheel rim is required to be in contact with the edge of the track to generate lateral extrusion force, the wheel set is pushed to gradually turn, and finally the vehicle walks around an arc line. If the wheel set for straight rail walking is directly used for curve walking, rail gnawing and blocking are easily caused.

Disclosure of Invention

The invention aims to provide a novel tower crane curve walking device aiming at the defects in the prior art.

In order to achieve the purpose, the invention provides a novel tower crane curve walking device, which comprises a curve track and a walking mechanism walking on the curve track, the curve track comprises two steel rails which are arranged at equal intervals, the travelling mechanism comprises a frame for bearing a standard knot of the tower crane, the lower side of the machine frame is provided with two lines of wheel set mechanisms which respectively walk on two steel rails, each line of wheel set mechanism is more than two, each wheel set mechanism comprises a connecting seat connected with the machine frame, a connecting beam arranged on the lower side of the connecting seat, a driving wheel set and a driven wheel set which are rotatably connected on the lower side of the connecting beam, the driving wheel set and the driven wheel set respectively comprise a wheel carrier which is rotatably connected with the connecting beam and a plurality of rollers which are arranged on the wheel carrier and are in rolling connection with the curved track, the periphery of gyro wheel is equipped with spacing rim and rolling surface, and at least one gyro wheel is connected with drive unit on each drive wheelset.

Furthermore, each wheel carrier is also provided with a plurality of idler wheels, the idler wheels are respectively arranged at two sides of the center line of the rolling surface, and the distance between the idler wheels and the center line of the rolling surface is smaller than the distance between the limiting wheel rim and the center line of the rolling surface, so that when the travelling mechanism turns, the idler wheels positioned at one side of the roller wheel contact with the side upper parts of the wheel rim and the steel rail firstly and are connected to the side upper parts of the curve rails in a rolling manner.

Furthermore, the driving parts of the two rows of wheel set mechanisms output corresponding driving rotating speeds respectively according to the radius ratio of the inner circle to the outer circle of the curve track.

Further, the connecting seat is hinged on the upper side of the connecting beam.

Further, the driving part comprises a speed reducer connected with the roller and a driving motor connected with the speed reducer.

Furthermore, the driving wheel set and the driven wheel set are connected with the connecting beam bearing.

Further, the bearing is a plane bearing.

Furthermore, the number of the idler wheels on each driving wheel set and each driven wheel set is 4, and the idler wheels are respectively arranged at the lower sides of the two ends of the two wheel carriers.

Furthermore, the frame includes two crossbeams and two longerons that set up the crossbeam upside, the longeron sets up with crossbeam mid point symmetry, the middle part upside at the longeron is fixed to the standard festival, wheelset mechanism includes four, and it sets up respectively the both ends downside of crossbeam.

Furthermore, the connecting seat upside is equipped with the connecting axle, the both ends of crossbeam are equipped with the connecting hole with connecting axle complex, the connecting axle alternates the connecting hole setting, the upper end of connecting axle is equipped with the spacer pin.

Has the advantages that: 1. the driving mechanism with the inner ring and the outer ring independently controlled is adopted, the driving speed of the inner ring and the outer ring driving parts is set according to the radius ratio of the inner ring and the outer ring in curve track walking, the coordination between the speed of the inner ring and the speed of the outer ring and the track is ensured to be consistent, and therefore rail gnawing and blocking are prevented.

2. Set up the depended wheel in the four corners of driven wheelset and drive wheelset, when the wheelset rotated along the track, the depended wheel contacted the side of rail earlier than the spacing rim of walking wheel, and the depended wheel of power drive rotated from this, avoided walking wheel rim gnawing rail phenomenon.

3. The plane bearing is installed at the joint of the driven wheel set, the driving wheel set and the connecting beam, the driven wheel set and the driving wheel set can rotate around respective rotating shafts, the curved rail walking is met, and the phenomenon of blocking is prevented.

Drawings

FIG. 1 is a schematic structural diagram of a novel curved traveling device of a tower crane according to an embodiment of the invention;

FIG. 2 is a schematic structural diagram of a wheel set mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic right-side view of FIG. 2;

fig. 4 is a partially enlarged schematic view of the area a in fig. 3.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific examples, which are carried out on the premise of the technical solution of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1 to 4, the embodiment of the invention provides a novel tower crane curved walking device, which comprises a hyperbolic track 1 and a walking mechanism 2 walking on the hyperbolic track 1, wherein the hyperbolic track 1 comprises two steel rails 101 arranged at equal intervals, the track curve of the curved track 1 can be set to be similar to the appearance of a building, and then the walking mechanism 2 can walk and displace along the outer side of the building. The travelling mechanism 2 comprises a frame 3 for bearing a standard knot of a tower crane, two rows of wheel set mechanisms 4 which respectively travel on two steel rails 101 are arranged on the lower side of the frame 3, and more than two wheel set mechanisms 4 are arranged on each row. Each wheel set mechanism 4 comprises a connecting seat 5, a connecting beam 6, a driving wheel set 7 and a driven wheel set 8. Wherein, connecting seat 5 is connected in the downside of frame 3, and tie-beam 6 sets up in connecting seat 5 downside, in order to avoid drive wheelset 7 or driven wheelset 8 one end perk under the uneven condition of atress, preferably articulates connecting seat 5 at the upside of tie-beam 6.

The driving wheel set 7 and the driven wheel set 8 of the embodiment of the invention can be rotatably connected to the lower side of the connecting beam 6. The driving wheel set 7 and the driven wheel set 8 are preferably connected with the connecting beam 6 through bearings 9, and the bearings 9 are preferably plane bearings, so that large weight loads can be borne. The driving wheel set 7 and the driven wheel set 8 of the embodiment of the invention respectively comprise a wheel frame 10 which is rotatably connected with the connecting beam 6 and a plurality of idler wheels 11 which are arranged on the wheel frame 10 and are in rolling connection with the steel rail 101, the periphery of each idler wheel 11 is provided with a limiting flange 111 and a rolling surface 112, at least one idler wheel 11 on each driving wheel set 7 is connected with a driving part, the driving part outputs rotary power to drive the idler wheel 11 connected with the driving part to rotate, and then each wheel set mechanism 4 independently drives the traveling steel rail 101. The driving means preferably includes a speed reducer 12 connected to the roller 11 and a driving motor 13 connected to the speed reducer 12.

In order to further prevent the roller 11 from being clamped and gnawing the rail 101 during turning, a plurality of idler wheels 14 are further arranged on the wheel frame 10, the idler wheels 14 are respectively arranged on two sides of the center line of the rolling surface 112, and the distance between the idler wheels 14 and the center line of the rolling surface 112 is smaller than the distance between the limiting flange 111 and the center line of the rolling surface 112, so that when the travelling mechanism 2 is turned, the idler wheels 14 on one side of the roller 11 are firstly contacted with the flange 111 and the side upper part of the rail 101, the idler wheels 14 are connected to the side upper part of the rail 101 in a rolling mode, and the flange 111 is further prevented from being clamped and gnawing the rail 101. The idler wheels 14 on the driving wheel set 7 and the driven wheel set 8 are respectively preferably 4, and the 4 idler wheels 14 are arranged on the lower sides of two ends of the wheel frame 10 in pairs.

During turning, the two rails 101 are respectively an inner ring rail and an outer ring rail, and the length of the outer ring rail is greater than that of the inner ring rail, so that the actually required rotating speeds of the rollers 11 on the outer ring rail and the inner ring rail are different, and in order to further reduce the possibility that the rollers 11 are stuck on the curved track 1, the driving parts on the two rows of wheelset mechanisms 4 respectively output corresponding driving rotating speeds according to the radius ratio of the inner ring rail to the outer ring rail, namely, the ratio of the output rotating speeds of the driving parts on the inner ring rail and the outer ring rail is equal to the radius ratio of the inner ring rail to the outer ring rail, so that the two rows of rollers 11 on the driving wheelset 7 roll at the speed matched with the curved track, and the phenomenon of sticking and gnawing of the track.

The frame 3 of the embodiment of the present invention preferably includes two cross beams 31 and two longitudinal beams 32 disposed on the upper sides of the cross beams 31, wherein the longitudinal beams 32 are symmetrically disposed at the midpoint of the cross beams 31, the standard knot is fixed on the upper side of the middle portion of the longitudinal beams 32, the number of the wheel set mechanisms 4 is preferably 4, and the 4 wheel set mechanisms 4 are respectively disposed on the lower sides of the two ends of the two cross beams 31. In order to facilitate the connection of the connecting seat 5 and the cross beam 31, it is preferable that a connecting shaft 51 is provided at an upper side of the connecting seat 5, connecting holes matched with the connecting shaft 51 are provided at both ends of the cross beam 31, the connecting shaft 51 is inserted into the connecting holes, and the upper portion of the connecting shaft 51 prevents the connecting shaft 51 from being removed from the connecting holes by a stopper pin.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that other parts not specifically described are within the prior art or common general knowledge to those of ordinary skill in the art. Without departing from the principle of the invention, several improvements and modifications can be made, and these improvements and modifications should also be construed as the scope of the invention.

Claims

1. A novel tower crane curve walking device comprises a curve track and a walking mechanism walking on the curve track, wherein the curve track comprises two steel rails arranged at equal intervals, it is characterized in that the travelling mechanism comprises a frame for bearing a standard knot of the tower crane, two lines of wheel set mechanisms which respectively travel on two steel rails are arranged at the lower side of the frame, more than two wheel set mechanisms are arranged at each line, each wheel set mechanism comprises a connecting seat connected with the frame, a connecting beam arranged at the lower side of the connecting seat, a driving wheel set and a driven wheel set which are rotatably connected at the lower side of the connecting beam, the driving wheel set and the driven wheel set respectively comprise a wheel carrier which is rotatably connected with the connecting beam and a plurality of rollers which are arranged on the wheel carrier and are in rolling connection with the curved track, the periphery of gyro wheel is equipped with spacing rim and rolling surface, and at least one gyro wheel is connected with drive unit on each drive wheelset.

2. The novel tower crane curve walking device as claimed in claim 1, wherein each wheel carrier is further provided with a plurality of idler wheels, the idler wheels are respectively arranged on two sides of the center line of the rolling surface, and the distance between the idler wheels and the center line of the rolling surface is smaller than the distance between the limiting flange and the center line of the rolling surface, so that when the walking mechanism turns, the idler wheel on one side of the roller wheel contacts with the flange and the upper side portion of the steel rail firstly and is connected to the upper side portion of the curve track in a rolling manner.

3. The novel tower crane curve walking device as claimed in claim 1, wherein the driving components of the two rows of wheel set mechanisms respectively output corresponding driving rotating speeds according to the radius ratio of the inner ring to the outer ring of the curve track.

4. The novel tower crane curve walking device as claimed in claim 1, wherein the connecting base is hinged on the upper side of the connecting beam.

5. The novel tower crane curved walking device as claimed in claim 1 or 3, wherein the driving part comprises a speed reducer connected with the roller and a driving motor connected with the speed reducer.

6. The novel tower crane curve walking device as claimed in claim 1, wherein the driving wheel set and the driven wheel set are connected with a connecting beam bearing.

7. The novel tower crane curve walking device as claimed in claim 6, wherein the bearing is a plane bearing.

8. The novel tower crane curve walking device as claimed in claim 1, wherein the number of idler wheels on each driving wheel set and each driven wheel set is 4, and the idler wheels are respectively arranged at the lower sides of two ends of the two wheel frames.

9. The novel tower crane curve walking device as claimed in claim 1, wherein the frame comprises two cross beams and two longitudinal beams arranged on the upper sides of the cross beams, the longitudinal beams are symmetrically arranged at the middle points of the cross beams, the standard knots are fixed on the upper sides of the middle parts of the longitudinal beams, and the number of the wheel set mechanisms is four, and the four wheel set mechanisms are respectively arranged on the lower sides of the two ends of the cross beams.

10. The novel tower crane curve walking device as claimed in claim 9, wherein a connecting shaft is arranged on the upper side of the connecting seat, connecting holes matched with the connecting shaft are arranged at two ends of the cross beam, the connecting shaft is inserted into the connecting holes, and a limit pin is arranged at the upper end of the connecting shaft.