CN201031113Y

CN201031113Y - Column crane type mast section

Info

Publication number: CN201031113Y
Application number: CNU2007200215278U
Authority: CN
Inventors: 王积永
Original assignee: SHANDONG FUYOU CO Ltd
Current assignee: SHANDONG FUYOU CO Ltd
Priority date: 2007-04-29
Filing date: 2007-04-29
Publication date: 2008-03-05
Anticipated expiration: 2017-04-29

Abstract

A tower crane slice standard knot comprises four individual L-shaped rigid frames which are connected together through a linking hole bolt to form a standard knot. Each L-shaped rigid frame comprises a main branch (1), connecting covers (6) fixedly arranged on the upper-and-lower ends of the main branch (1), a diagonal web member (3), a horizontal web member (2), a connecting board (5) and a vertical rod (4), wherein the main branch (1) is fixedly connected with at least one horizontal web member (2) and one diagonal web member (3), and one end of the horizontal web member (2) and one end of the diagonal web member (3) which are not connected with the main branch both have one connecting board (5) which is connected with another connecting board (5) through a linking hole bolt in a position corresponding to the main branch in another L-shaped rigid frame. The structure brings simpleness on the standard knot, easiness on transportation, and convenience on detaching, and in the meantime reduces the weight of the whole structure without affecting the structural strength or normal use of the crane.

Description

A kind of tower crane chip standard knot

Technical field:

The utility model belongs to the elevator machinery field, is specifically related to a kind of tower crane chip standard knot.

Background technology:

Tower crane generally is to be formed by connecting by the body of the tower standard knot, standard knot is force structure parts the most key on the hoisting crane, at first it will bear up the load that work load, the body of the tower topside deadweight of heavy-duty machine brought, the load that the body of the tower windage is brought, secondly each standard knot weight of also wanting the normal operation of support tower body structure and lifting by crane thing in working order the time; And the while is along with the continuous rising of building, hoisting crane also will increase, therefore constantly to increase the load that like this standard knot will be born increasing for the quantity of standard knot, this just requires standard knot also to require standard knot can in time replace where necessary simultaneously by enough intensity, rigidity stability and tensile strength.

Existing standard knot is generally complete standard knot, both sides up and down at each main limb of standard knot all have the bindiny mechanism that cooperatively interacts, be connected when mounted or be aided with other connecting devices and get final product, adopt the standard knot of this structure, though on structural strength, can be guaranteed but because it is an integral structure, volume comparatively bothers when transportation more greatly, can only transport several standard knots and as easy as rolling off a log extruding the in transportation at every turn, cause the distortion of standard knot, make the tower crane can't installation forming, but but destroyed its single-piece structural strength though some small distortion is difficult for discovering, very likely brought bigger danger after the installation to use.Though split type standard knot is arranged now, but its joint with save between be connected and can't meet the requirements of structural strength and must install articulamentum and standard knot structural strength additional in order to guarantee to make up, installed the support cant beam at middle part additional, so just strengthened the overall weight of tower crane, be unfavorable for that its use has aborning also increased simultaneously production cost and difficulty.

Summary of the invention

The problems the utility model that exists at prior art provides a kind of tower crane chip standard knot, is made up of several slice structures, and is more or less freely when convenient transportation simple in structure and dismounting.

The utility model is by the following technical solutions: tower crane chip standard knot by four Pin independently L type rigid frame form, four Pin L type rigid frames are formed a standard knot by the articulation hole bolted connection together.Each L type rigid frame is made up of main limb, the adapter sleeve that is fixedly mounted on main limb upper and lower side, diagonal web member, horizontal web member, connecting panel and montant, be fixedly connected with at least one horizontal web member and at least one diagonal web member on the main limb, horizontal web member and diagonal web member with on main limb bonded assembly one end all do not have connecting panel, connecting panel on this connecting panel and the another one L type rigid frame master limb relevant position is by the articulation hole bolted connection, and horizontal web member is captiveed joint by montant with the end that diagonal web member has connecting panel.

Owing to adopted the articulation hole bolted connection, resist shearing with regard to the structure that utilizes the articulation hole bolt like this, most importantly be connected to compare with the employing bearing pin and limited moving axially between each parts, make integrality performance of the structure good than existing connection mode, anti-fatigue ability is strong.Link to each other with the main limb that the relevant position has connecting panel owing to all be connected with diagonal web member and its on each L type rigid frame, so just strengthened the structural strength of chip standard knot, the overall weight that has reduced standard knot simultaneously helps the stability of complete machine.Structurally increase horizontal web member and so just guaranteed the stability of standard knot after being connected, do not need to add again other horizontal surface stabilizing device, simultaneously in order to guarantee that deformation does not take place rigid frame integral body in transportation, an end that has connecting panel at horizontal web member and diagonal web member adopts montant to captive joint, deformation can not take place in the rigidity that has so just guaranteed whole rigid frame, has made things convenient for the transportation of chip rigid frame.

Establish at least one horizontal hound in standard knot end face or the bottom surface formed, so just solved the not enough problem of chip body of the tower rigidity, for more convenient installation hound, can be at the inboard fixed installation of the main limb otic placode of each adapter sleeve position of standard knot, so just hound can be installed on the main limb of standard knot by bolt or bearing pin or other connection mode, in order to reach best stablizing effect, can hound all be installed in the standard knot end face and the bottom surface of each composition.

Connect with high strength bolt by the adapter sleeve that is installed in main limb upper and lower side between the chip standard knot that adopts L type rigid frame to form, so just than the existing structural weight that adopts the stirrup ways of connecting to reduce tower crane whole, the load that has alleviated tower crane is simultaneously because what use is that the parts of standard can be with the high strength bolt of buying easily on the market, so just do not need the special-purpose attaching parts of processing separately, reduced the cost of enterprise.

Adopt tower crane chip standard knot of the present utility model, following benefit arranged: once be taken up an area of when having adopted slice structure to make like this stack to store little; The 2nd and since when having adopted the bolt of gauge member so just to make dismounting more easily, made things convenient for the service life of secondary use prolongation standard knot; The 3rd, it is lower to be convenient to transportation and expense, is particularly suitable for the sea-freight of long-distance land transportation and ocean, owing to can utilize pallet loading, the effect of its resistant to rust and deformation is very remarkable; The 4th, convenient welding during assembling is made simply, need not use whole frock to use.

Description of drawings

Fig. 1 is the structural representation of L type rigid frame;

Fig. 2 is the right elevation of Fig. 1;

Fig. 3 is the birds-eye view of Fig. 1;

Fig. 4 is the structural representation of chip standard knot described in the utility model;

Fig. 5 is the birds-eye view of Fig. 4;

Fig. 6 is the cutaway view Amplified image of A-A.

1 is main limb in the accompanying drawing, and 2 is horizontal web member, and 3 is diagonal web member, and 4 is montant, and 5 is connecting panel, and 6 is adapter sleeve, and 7 is horizontal hound, and 8 is the articulation hole nut, and 9 is the articulation hole bolt, and 10 is otic placode.

The specific embodiment

Tower crane chip standard knot, by four Pin independently L type rigid frame form, all form a standard knot between four Pin L type rigid frames by the articulation hole bolted connection together.L type rigid frame is made up of main limb 1, the adapter sleeve 6 that is fixedly mounted on main limb 1 upper and lower side, diagonal web member 3, horizontal web member 2, connecting panel 5 and montant 4, on main limb 1, be fixedly connected with two horizontal web members 2 and two diagonal web members 3 respectively, horizontal web member 2 and diagonal web member 3 with on main limb bonded assembly one end all do not have connecting panel 5, and this connecting panel is connected by articulation hole bolt 9 with connecting panel 5 on the another one L type rigid frame master limb relevant position.

Horizontal web member 2 with relevant position on the four Pin L type rigid frames during assembling is connected by connecting panel in turn with the main limb of diagonal web member 3 with another Pin L type rigid frame, use the articulation hole bolt with the fixing standard knot of forming between it, respectively establish a horizontal hound 7 at standard knot end face and bottom surface, horizontal hound is connected with standard knot by the inboard hard-wired otic placode of the main limb of adapter sleeve position, generally adopts bolt that otic placode and horizontal hound are linked together to strengthen the stability of whole standard knot; When the chip standard knot is assembled into the hoisting crane body of the tower, will saves with joint by the adapter sleeve 6 usefulness high strength bolts that are installed in main limb 1 upper and lower side and link together and get final product.

In order to make whole standard knot more stable, the captive joint when producing L type rigid frame generally uses the method for welding, and can be in the position of weld with strengthening steel plate additional strengthening intensity when welding; Because tower crane can raise with the rising of building, therefore on the main limb of each L type rigid frame, also be fixedly connected with pedal, make things convenient for the lifting voluntarily of tower crane.

Claims

1. tower crane chip standard knot, by four Pin independently L type rigid frame form, it is characterized in that: all form a standard knot between four Pin L type rigid frames by the articulation hole bolted connection together.

2. tower crane chip standard knot according to claim 1, it is characterized in that: each L type rigid frame is by main limb (1), be fixedly mounted on the adapter sleeve (6) of main limb (1) upper and lower side, diagonal web member (3), horizontal web member (2), connecting panel (5) and montant (4) are formed, be fixedly connected with at least one horizontal web member (2) and at least one diagonal web member (3) on the main limb (1), horizontal web member (2) and diagonal web member (3) with on main limb bonded assembly one end all do not have connecting panel (5), and the connecting panel (5) on this connecting panel and the another one L type rigid frame master limb relevant position is by the articulation hole bolted connection.

3. tower crane chip standard knot according to claim 1 and 2 is characterized in that: the chip standard knot connects with high strength bolt by the adapter sleeve (6) that is installed in main limb (1) upper and lower side.

4. tower crane chip standard knot according to claim 1 and 2 is characterized in that: establish at least one horizontal hound (7) in chip standard knot end face or the bottom surface formed.