CN218058225U

CN218058225U - Tower crane and underframe used for same

Info

Publication number: CN218058225U
Application number: CN202222449077.XU
Authority: CN
Inventors: 唐少芳; 宋淼; 付英雄; 朱丹阳
Original assignee: Zoomlion Construction Crane Co Ltd
Current assignee: Zoomlion Construction Crane Co Ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2022-12-16
Anticipated expiration: 2032-09-15

Abstract

The utility model relates to a hoisting equipment field discloses a tower crane and be used for its chassis, this chassis include floorbar subassembly (1), be fixed in basic festival (2) and lift (3) on this floorbar subassembly (1), this lift (3) have fixed to the lift track (31) and the connection of floorbar subassembly (1) and/or basic festival (2) are for car (32) that can follow this lift track (31) and remove, the both ends of lift track (31) correspond respectively and extend to surpass floorbar subassembly (1) and basic festival (2), in order to allow car (32) follow this lift track (31) the below of floorbar subassembly (1) removes to the top of basic festival (2). Through setting up above-mentioned chassis, operating personnel can reach the top of chassis through the lift fast in the position that is close ground, effectively reduces energy and the time that operating personnel climbed upwards and expend from this, and the specially adapted is in large-scale or the portable tower machine of extra-large-scale.

Description

Tower crane and underframe used for same

Technical Field

The utility model relates to a hoisting equipment specifically relates to an underframe for tower crane. On the basis, the utility model discloses still relate to a tower crane who has this chassis.

Background

The tower crane is called a tower crane or a tower crane for short, and can lift construction materials and assist in mounting large-scale components in a larger range by mounting a rotatable suspension arm on the upper part of a high-rise tower body. Generally, a tower body of a tower crane may be fixed to a foundation, a walking chassis, or the like through an underframe, and a climbing ladder and a climbing passageway may be arranged in the underframe and the tower body, so that an operator may reach a cab located at the top of the tower body through the climbing ladder.

However, for a mobile tower crane with a tower body fixed on a traveling mechanism, especially for an ultra-large tower crane, an operator first needs to climb to a position on a traveling chassis to reach a base section, and then climbs upwards to the top of the tower body through a ladder, which needs to consume a lot of energy and time, and further affects construction progress and operation safety.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that the tower crane in-process need consume a large amount of efforts and time that the operating personnel that prior art exists climbs, providing a chassis for tower crane, this chassis can effectively reduce the effort and the time that operating personnel upwards climbed and consume, and the specially adapted is in the super large-scale portable tower machine.

In order to achieve the above object, an aspect of the present invention provides an underframe for a tower crane, including a bottom beam assembly, a base section fixed on the bottom beam assembly, and a lift having a lift rail fixed to the bottom beam assembly and/or the base section and a car connected to the lift rail for moving along the lift rail, both ends of the lift rail respectively correspond to extend to exceed the bottom beam assembly and the base section, so as to allow the car to move along the lift rail from the lower side of the bottom beam assembly to the upper side of the base section.

Preferably, the sill assembly includes a plurality of edge beams formed in a closed contour in a surrounding manner and a diagonal beam extending along a diagonal of the closed contour and connected to the edge beams, the foundation section being connected to the diagonal beam.

Preferably, the underframe further comprises a plurality of brace rods, one end of each brace rod is connected to the top end of the foundation section, and the other end of each brace rod is connected to the end part of the diagonal beam.

Preferably at least one of the edge beams has a first mounting beam and a second mounting beam arranged spaced apart from each other and extending in parallel, the lifting rail extending through a gap between the first and second mounting beams, the car being arranged to be movable through the gap.

Preferably, the first and second mounting beams have lower sides to which elevator hangers are coupled, and the lifting rails are supported on the elevator hangers.

Preferably, the bottom beam assembly and/or the foundation section is provided with a ladder.

Preferably the chassis further comprises a top platform arranged to surround the top end of the base section, the top end of the lifting track extending beyond the top platform and allowing the car to rest in a position where the car floor is level with the top platform.

Preferably, the top end of the foundation section is provided with a slewing bearing for connecting the tower body.

A second aspect of the present invention provides a tower crane having the above-described underframe and a tower body installed on the top end of the underframe, wherein the bottom end of the lifting rail extends to a position allowing an operator to enter from the ground to the car.

Preferably, the tower crane has a travelling chassis to which the bottom end of the undercarriage is mounted, and/or is further provided with another hoist capable of transporting an operator from the top end of the undercarriage to a top position of the tower.

Through the technical scheme, the operator can quickly and easily reach the top of the underframe through the elevator at the position close to the ground, and then can reach the cab at the top of the tower body through the ladder stand in the tower body or the other elevator, so that the energy and time consumed by the upward climbing of the operator are effectively reduced. Through setting up above-mentioned chassis, operating personnel can get into the car and need not to reach the position of basic festival through cat ladder etc. near ground relatively to reduced the energy loss that the non-operation reason is by the result, specially adapted is in large-scale or the portable tower machine of extra-large-scale.

Drawings

Fig. 1 is a schematic perspective view of an underframe for a tower crane according to a preferred embodiment of the present invention;

fig. 2 is a front view of the chassis in fig. 1.

Description of the reference numerals

1-a bottom beam assembly; 11-edge beam; 111-a first mounting beam; 112-a second mounting beam; 12-diagonal beam; 2-a foundation section; 3-a lifter; 31-a lifting rail; 32-a car; 4-a brace rod; 5-a lifter hanger; 6-climbing a ladder; 7-a top platform; 8-slewing bearing.

Detailed Description

The following describes in detail embodiments of the present invention with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" generally means upper, lower, left, and right as illustrated with reference to the accompanying drawings; "inner and outer" refer to the inner and outer relative to the profile of the components themselves.

Referring to fig. 1 and 2, an underframe for a tower crane according to a preferred embodiment of the present invention comprises a bottom beam assembly 1, a foundation section 2, a lift 3, etc., wherein the bottom beam assembly 1 is used for being fixed to a foundation, a traveling chassis, etc., and has a large extension range relative to a tower body so as to have good anti-overturning performance and lifting capacity; the foundation sections 2 can be fixed on the bottom beam assembly 1 through fasteners such as bolts or in a welding mode and the like, can be formed by connecting main limbs such as four seamless steel pipes, I-shaped steel and the like and a triangular steel frame through tenons and pin shafts, and considering factors such as transportation convenience, a plurality of foundation sections 2 connected to have a certain height can be arranged in the underframe; the elevator 3 has an elevating rail 31 and a cage 32, and the elevating rail 31 is fixed to at least one of the bottom beam assembly 1 and the base section 2 and extends beyond the top end of the base section 2 at one end (top end) and extends beyond the bottom beam assembly 1 at the other end (bottom end), so that the cage 32 can move along the elevating rail 31 from below the bottom beam assembly 1 to above the base section 2. It will be appreciated that the car 32 herein may be formed as a closed or semi-closed structure, so long as it is capable of carrying and transporting personnel and supplies.

From this, through the utility model provides an above-mentioned chassis, operating personnel can reach the top of chassis fast, easily through lift 3 in the position that is close ground, and then can reach the driver's cabin at tower body top through cat ladder or another lift in the tower body, effectively reduce effort and the time that operating personnel climbed and consume from this. The operating personnel can get into the car from the position that is close to ground relatively and need not reach the position of basic festival 2 through cat ladder etc. to reduced the energy loss that the non-operation reason caused, especially adapted to in the large-scale or super large-scale portable tower machine (need not operating personnel to climb on bulky walking chassis).

Further, the sill assembly 1 may include a plurality of side sills 11 that are formed to enclose a closed contour and a diagonal sill 12 that extends along a diagonal of the closed contour and is connected to the side sills 11. In the illustrated preferred embodiment, the diagonal beams 12 have a size larger than that of the side beams 11 in the height direction, so that mounting seats for fixing to a mounting base can be formed on the diagonal beams 12, while the respective side beams 11 are connected to the ends of the diagonal beams 12 by fasteners such as bolts. Thus, although it is described herein that a plurality of side members are enclosed to form a closed contour, adjacent two side members 11 may not necessarily be directly joined, but may be connected to the diagonal members 12, respectively.

Typically, the undercarriage assembly 1 may have four edge beams 11, whereby each edge beam 11 may be connected parallel to a respective contour edge of the horizontal cross-section of the foundation section 2. Wherein, the foundation section 2 can be connected to the diagonal beam 12, so that the bottom beam assembly 1 has a larger extension range relative to the foundation section 2, which is beneficial to the tower crane to have better anti-overturning performance and hoisting capacity.

In addition to the aforementioned direct connection to (the diagonal beams 12 of) the underframe assembly 1 at the bottom end, the foundation sections 2 may also be supported at or near the edge beams by a plurality of struts 4 around to further improve the resistance to overturning. In particular, as illustrated, the undercarriage may comprise, for example, four braces 4, one end of the braces 4 being connected to the (main limb) top end of the foundation node 2 and the other end being connected to the end of the diagonal beam 12. The brace 4 may be bolted to the foundation section 2 and the undercarriage assembly 1 for disassembly and transportation.

The lifting rail 31 of the elevator 3 can be fixed to the sill assembly 1 and/or the foundation section 2 in a number of suitable ways, as long as it is able to guide the car 32 to a suitable parking position. In order to keep the lifting rail 31 as close as possible to the foundation section 2 and avoid interference with other parts, the illustrated preferred embodiment arranges the lifting rail 31 to extend through the bottom beam assembly 1 and to be fixable to the bottom beam assembly 1. Specifically, one of the side beams 11 of the sill assembly 1 has a first mounting beam 11 and a second mounting beam 12, the first and

second mounting beams

11 and 12 are disposed apart from each other and extend parallel to each other, the lifting rail 31 extends through a gap between the first and

second mounting beams

11 and 12, and the car 32 can move along the lifting rail 31 through the gap. This allows the underframe to have a relatively compact overall structure, facilitating the car 32 to be parked in place without interference.

For portable tower machine, the utility model discloses an underframe needs to be installed to the moving mechanism for example for walking chassis on, from this relatively ground probably has higher height, through making the bottom of lift track 32 of lift 3 extend to surpassing floorbar subassembly 1, can allow car 32 to stop in the below of floorbar subassembly 1, is convenient for from this that the operating personnel gets into car 32 from ground. Wherein, the bottom beam assembly 1 can be connected with the elevator hanger 5 at the lower side through the first mounting beam 111 and the second mounting beam 112 thereof, and the lifting rail 31 can be supported on the elevator hanger 5, so that the load of the elevator 3 can be borne through the elevator hanger 5 moved along with the vehicle, thereby facilitating the setting of the elevator 3 on the mobile tower crane. As mentioned before, the elevator hanger 5 is fixed to the bottom beam assembly 1, and the lifting rail 31 can be supported on the one hand at the bottom end on this elevator hanger 5 and on the other hand at an intermediate position by means of an attachment structure to the foundation node 2.

The utility model relates to an in the chassis of preferred embodiment, its floorbar subassembly 1 and/or basic festival 2 still are equipped with cat ladder 6, from this, when lift 3 became invalid because of reasons such as having a power failure, operating personnel can get back to ground or climb to the predetermined height position department of chassis through this cat ladder 6, have effectively ensured safety in utilization.

As mentioned above, after the operator has reached the top of the underframe via the lift 3, he can reach the cab at the top of the tower via a ladder inside the tower or another lift, for which purpose a top platform 7 for the operator to stand or for material storage can be provided at the top of the underframe. In the preferred embodiment shown, the top platform 7 is arranged to surround the top end of the foundation section 2, and the top end of the lifting rail 31 extends beyond the top platform 7 and allows the car 32 to rest with its floor flush with the top platform 7. Thus, when an operator is transported by the car 32 to the level of the top platform 7, he can reach a ladder or another elevator in the tower through the top platform 7, thus ensuring convenience and safety in use. Wherein the other elevator may have an elevation rail (located outside the tower) extending from a top end of the underframe to a top position of the tower, and a car capable of being driven to extend along the elevation rail, and an operator may ride the car to a position of the cab.

In addition, the top end of the foundation section 2 can be further provided with a slewing bearing 8 for connecting a tower body, and a standard section or a non-standard section at the lowest end of the tower body can be pivotally arranged on the foundation section 2 through the slewing bearing 8, so that all parts above the slewing bearing 8 can be slewed relative to the base so as to be integrally disassembled, assembled and transferred.

On this basis, the utility model also provides a tower crane with above-mentioned chassis, its body of the tower install in the top of chassis. Wherein the lifting rail 31 of the elevator 3 is arranged with its bottom end extending to a position allowing an operator to enter the car 32 from the ground, whereby the operator can easily reach the top end of the underframe through the elevator 3. As mentioned above, the tower crane may be a mobile tower crane or a fixed tower crane, and thus, the bottom end of the bottom frame may be correspondingly mounted to the walking chassis or the foundation.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical concept of the utility model is in the scope, can be right the utility model discloses a technical scheme carries out multiple simple variant, makes up with any suitable mode including each concrete technical characteristics. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. However, these simple modifications and combinations should also be considered as disclosed in the present invention, and all fall within the scope of protection of the present invention.

Claims

1. An underframe for a tower crane, which is characterized by comprising a bottom beam assembly (1), a base section (2) fixed on the bottom beam assembly (1), and an elevator (3), wherein the elevator (3) is provided with a lifting track (31) fixed on the bottom beam assembly (1) and/or the base section (2) and a lift car (32) connected to be capable of moving along the lifting track (31), and two ends of the lifting track (31) respectively and correspondingly extend to exceed the bottom beam assembly (1) and the base section (2) so as to allow the lift car (32) to move along the lifting track (31) from the lower part of the bottom beam assembly (1) to the upper part of the base section (2).

2. Undercarriage for a tower crane according to claim 1, wherein the bottom beam assembly (1) comprises a plurality of edge beams (11) enclosing a closed contour and a diagonal beam (12) extending along a diagonal of the closed contour and connected to the edge beams (11), the foundation knot (2) being connected to the diagonal beam (12).

3. The undercarriage for a tower crane according to claim 2, further comprising a plurality of braces (4), one end of the braces (4) being connected to the top end of the foundation section (2) and the other end being connected to the end of the diagonal beam (12).

4. Undercarriage for a tower crane according to claim 2, characterized in that at least one of the edge beams (11) has a first mounting beam (111) and a second mounting beam (112) arranged at a distance from each other and extending in parallel, the lifting rail (31) extending through a gap between the first mounting beam (111) and the second mounting beam (112), through which gap the car (32) is arranged to be movable.

5. Undercarriage for a tower crane according to claim 4, characterized in that an elevator pylon (5) is connected to the underside of the first mounting beam (111) and the second mounting beam (112), the lifting rail (31) being supported on the elevator pylon (5).

6. Undercarriage for a tower crane according to claim 1, characterised in that the bottom beam assembly (1) and/or the foundation knot (2) are provided with a ladder (6).

7. Undercarriage for a tower crane according to claim 1, further comprising a top platform (7) arranged to surround the top end of the base section (2), the top end of the lifting track (31) extending beyond the top platform (7) and allowing the car (32) to stop at a position where the car floor is level with the top platform (7).

8. Undercarriage for a tower crane according to claim 1, characterized in that the top end of the foundation section (2) is fitted with a swivel bearing (8) for connection to the tower.

9. A tower crane, characterized in that it has an underframe according to any one of claims 1-8 and a tower mounted at the top end of the underframe, wherein the bottom end of the lifting rail (31) extends to a position allowing an operator to access the car (32) from the ground.

10. A tower crane according to claim 9, having a walking chassis to which the bottom end of the undercarriage is mounted, and/or being further provided with a further hoist capable of transporting an operator from the top end of the undercarriage to a position at the top of the tower.