CN209322359U - A kind of tower crane swing arm slewing limit structure - Google Patents

Abstract

The utility model discloses a kind of tower crane swing arm slewing limit structures, including main body, screw and fixed frame, the bottom of the main body is equipped with support column, it and is to be flexibly connected between main body and support column, fixture block is installed at the top of the main body, it is welded with clamping rings above the fixture block, and the inside of clamping rings is through there is Nut column.The tower crane swing arm slewing limit structure setting has clamping rings, by the inside that boom is fastened on to clamping rings, then in rotating nut column, it is bonded its drive pasting board with boom fixed column, it is rotated further by through the bolt on clamping rings, it is bonded it with Nut column, to keep boom and position limiting structure fixation more secured, avoid the strength of boom receiving during tower crane use larger the phenomenon that being detached from position limiting structure, double-deck simultaneously being screwed not only keeps the fastness of boom and clamping rings, and keep it also more simple and convenient in disassembly process.

Description

A kind of tower crane swing arm slewing limit structure

Technical field

The utility model relates to position limiting structure technical field, specially a kind of tower crane swing arm slewing limit structure.

Background technique

Tower crane is a kind of most common lifting equipment also known as " derrick crane " on construction site, is connect with a section Long, for hanging the raw material of the constructions such as working reinforcing bar, wooden flute, concrete, steel pipe, tower crane is a kind of essential on building site Equipment, when tower crane reaches specified position, limiting device is limited boom to reach accurate use.

It is inadequate to the limit flexibility ratio of boom in position limiting structure use process in the market, it be easy to cause boom to be deteriorated The phenomenon that occur, while position limiting structure and the not certain reinforced fixed structure of boom, be easy to cause boom transfer it is overweight The problem of shaking is easy to appear when article, for this purpose, it is proposed that a kind of tower crane swing arm slewing limit structure.

Utility model content

The purpose of this utility model is to provide a kind of tower crane swing arm slewing limit structures, to solve above-mentioned background technique It is inadequate to the limit flexibility ratio of boom in the position limiting structure use process of middle proposition, the phenomenon that be easy to causeing boom to be deteriorated hair It is raw, while position limiting structure and the not certain reinforced fixed structure of boom, it be easy to cause boom appearance when transferring overweight article The problem of easily shaking.

To achieve the above object, the utility model provides the following technical solutions: a kind of tower crane swing arm slewing limit structure, Including main body, screw and fixed frame, the bottom of the main body is equipped with support column, and is that activity connects between main body and support column It connects, fixture block is installed at the top of the main body, clamping rings is welded with above the fixture block, and the inside of clamping rings is run through There is Nut column, one end of the Nut column is fixed with pasting board, and the inside of the clamping rings, which is run through, bolt, and bolt and fixation To be threadedly coupled between annulus, the screw is to be threadedly coupled between screw and main body through the inside of main body, described solid Frame is determined through the inside of main body.

Preferably, the main body is flexibly connected with fixture block composition, and the central axes of support column are mutually be overlapped with the central axes of fixture block It closes.

Preferably, to be threadedly coupled between the clamping rings and Nut column, and connect between Nut column and pasting board for welding It connects, and Nut column and bolt constitute vertical structure.

Preferably, the fixed frame further includes hydraulic cylinder, fixing shell, hydraulic stem, limited block, sliding slot, connecting rod and cunning Wheel, the bottom of the fixed frame are equipped with hydraulic cylinder, and fasten between fixed frame and hydraulic cylinder for nut, outside the hydraulic cylinder It encloses and is provided with fixing shell, and to be fixedly connected between hydraulic cylinder and fixing shell, the top linking of the hydraulic cylinder has hydraulic Bar, and to be flexibly connected between hydraulic cylinder and hydraulic stem, the top linking of the hydraulic stem has limited block, and the left and right of limited block Two sides are fixed with connecting rod, the left and right sides inner wall of the fixed frame is welded with sliding slot, and sliding slot is internally provided with pulley, institute It states limited block and fixture block constitutes snap-in structure.

Preferably, the hydraulic cylinder constitutes lifting structure by hydraulic stem and limited block, and hydraulic stem and limited block are constituted Vertical structure.

Preferably, the connecting rod constitutes slide construction by pulley and sliding slot, and is solid between connecting rod and limited block Fixed connection.

Compared with prior art, the utility model has the beneficial effects that

1, the tower crane swing arm slewing limit structure setting has clamping rings, by the way that boom to be fastened in clamping rings Portion is bonded its drive pasting board with boom fixed column, is rotated further by through on clamping rings then in rotating nut column Bolt, be bonded it with Nut column, thus make boom and position limiting structure fixation it is more secured, avoid tower crane use During boom strength larger the phenomenon that being detached from position limiting structure for bearing, while bilayer is screwed not only The fastness of boom and clamping rings is kept, and keeps it also more simple and convenient in disassembly process；

2, the tower crane swing arm slewing limit structure setting has fixture block, can carry out certain journey due to being mounted on fixture block in main body The rotation of degree, to keep the boom being mounted on fixture block enhanced convenience during rotating 360 ° simple and direct, work people Member operates enhanced convenience, while also making the flexibility of tower crane itself higher, avoids the occurrence of that the hanged article of boom is overweight to rub It wipes power to increase, the phenomenon of mobile inconvenience is caused to occur；

3, the tower crane swing arm slewing limit structure setting has fixed frame, when the buckle of fixture block is moved to the top of fixed frame When, it can make it that the limited block on hydraulic stem be driven to engage with it, to keep position limiting structure more perfect by opening hydraulic cylinder Realize the effect of limit, while position limiting structure is installed altogether there are six limited block, the distance between each limited block is degree, thus Staff is set more preferably to determine when to open hydraulic cylinder according to the rotation angle of boom, in the process that limited block is risen, The connecting rod for being fixed on limited block two sides can be slided by pulley and the sliding slot on fixed frame, to realize that limited block rises Stability in the process, the phenomenon that avoiding the occurrence of deviation generation.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model fixed frame structural schematic diagram；

Fig. 3 is enlarged structure schematic diagram at A in the utility model Fig. 1.

In figure: 1, main body；2, support column；3, fixture block；4, clamping rings；401, Nut column；402, pasting board；403, bolt； 5, screw；6, fixed frame；601, hydraulic cylinder；602, fixing shell；603, hydraulic stem；604, limited block；605, sliding slot；606, even Extension bar；607, pulley.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of tower crane swing arm slewing limit structure, packet Include main body 1, support column 2, fixture block 3, clamping rings 4, Nut column 401, pasting board 402, bolt 403, screw 5, fixed frame 6, hydraulic Cylinder 601, fixing shell 602, hydraulic stem 603, limited block 604, sliding slot 605, connecting rod 606 and pulley 607, the bottom of main body 1 Support column 2 is installed, and to be flexibly connected between main body 1 and support column 2, the top of main body 1 is equipped with fixture block 3, main body 1 and card Block 3, which is constituted, to be flexibly connected, and the central axes of support column 2 and the central axes of fixture block 3 coincide, due to installing fixture block 3 on the body 1 A degree of rotation can be carried out, to keep the boom being mounted on fixture block 3 more square during rotating 360 ° Just simple and direct, staff operates enhanced convenience, while also making the flexibility of tower crane itself higher, avoids the occurrence of boom and hangs It takes the overweight frictional force of article to increase, the phenomenon of mobile inconvenience is caused to occur, the top of fixture block 3 is welded with clamping rings 4, and solid The inside of annulus 4 is determined through there is Nut column 401, and one end of Nut column 401 is fixed with pasting board 402, and the inside of clamping rings 4 is run through There is bolt 403, and to be threadedly coupled between bolt 403 and clamping rings 4, connects between clamping rings 4 and Nut column 401 for screw thread It connects, and to be welded to connect between Nut column 401 and pasting board 402, and Nut column 401 and bolt 403 constitute vertical structure, pass through Boom is fastened on to the inside of clamping rings 4, then in rotating nut column 401, drives it by pasting board 402 and boom fixed column It is bonded, is rotated further by through the bolt 403 on clamping rings 4, is bonded it with Nut column 401, to make boom It is more secured with position limiting structure fixation, avoid the strength of boom receiving during tower crane use is larger from going out with position limiting structure The phenomenon that being now detached from, while double-deck being screwed not only keeps the fastness of boom and clamping rings 4, and make its Also more simple and convenient in disassembly process, screw 5 connects through the inside of main body 1, and between screw 5 and main body 1 for screw thread It connects；

For fixed frame 6 through the inside of main body 1, fixed frame 6 further includes hydraulic cylinder 601, fixing shell 602, hydraulic stem 603, limited block 604, sliding slot 605, connecting rod 606 and pulley 607, the bottom of fixed frame 6 are equipped with hydraulic cylinder 601, and fixed It is fastened between frame 6 and hydraulic cylinder 601 for nut, the periphery of hydraulic cylinder 601 is provided with fixing shell 602, and hydraulic cylinder 601 and solid Determine to be fixedly connected between shell 602, the top linking of hydraulic cylinder 601 has hydraulic stem 603, and hydraulic cylinder 601 and hydraulic stem 603 Between to be flexibly connected, the linking of the top of hydraulic stem 603 has limited block 604, and the left and right sides of limited block 604 is fixed with connection Bar 606, the left and right sides inner wall of fixed frame 6 be welded with sliding slot 605, and sliding slot 605 is internally provided with pulley 607, limited block 604 constitute snap-in structure with fixture block 3, and hydraulic cylinder 601 constitutes lifting structure, and hydraulic stem by hydraulic stem 603 and limited block 604 603 constitute vertical structure with limited block 604, and connecting rod 606 constitutes slide construction, and connecting rod by pulley 607 and sliding slot 605 It, can be by opening liquid when the buckle of fixture block 3 is moved to the top of fixed frame 6 to be fixedly connected between 606 and limited block 604 Cylinder pressure 601 makes it that the limited block 604 on hydraulic stem 603 be driven to engage with it, thus the realization limit for keeping position limiting structure more perfect The effect of position, while position limiting structure is installed altogether there are six limited block 604, the distance between each limited block 604 is 60 degree, from And staff is made more preferably to determine when to open hydraulic cylinder 601 according to the rotation angle of boom, risen in limited block 604 When process, the connecting rod 606 for being fixed on 604 two sides of limited block can be slided by pulley 607 and the sliding slot 605 on fixed frame 6 It is dynamic, thus the phenomenon that realizing the stability in 604 uphill process of limited block, avoiding the occurrence of deviation generation.

Working principle: for this kind of position limiting structure, first by the inside by the way that boom to be fastened on to clamping rings 4, It then in rotating nut column 401, is bonded its drive pasting board 402 with boom fixed column, is rotated further by through fixed and justifies Bolt 403 on ring 4, is bonded it with Nut column 401, to keep boom and position limiting structure fixation more secured, together When due to install on the body 1 fixture block 3 can carry out a degree of rotation, so that the boom being mounted on fixture block 3 be made to carry out Enhanced convenience is simple and direct during 360 ° of rotations, then when the buckle of fixture block 3 is moved to the top of fixed frame 6, can pass through ROB32X300 hydraulic cylinder 601 is opened, makes it that the limited block 604 on hydraulic stem 603 be driven to engage with it, to make position limiting structure The effect of more perfect realization limit, while position limiting structure is installed altogether there are six limited block 604, each limited block 604 it Between distance be 60 degree, so that it is hydraulic so that staff is more preferably determined when opening ROB32X300 according to the rotation angle of boom Cylinder 601, during limited block 604 is risen, the connecting rod 606 for being fixed on 604 two sides of limited block can be by pulley 607 It is slided with the sliding slot 605 on fixed frame 6, to realize the stability in 604 uphill process of limited block, avoids the occurrence of deviation The phenomenon that occur, complete the use process of entire position limiting structure like this.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of tower crane swing arm slewing limit structure, including main body (1), screw (5) and fixed frame (6), it is characterised in that: institute The bottom for stating main body (1) is equipped with support column (2), and to be flexibly connected between main body (1) and support column (2), the main body (1) Top be equipped with fixture block (3), be welded with clamping rings (4) above the fixture block (3), and the inside of clamping rings (4) is passed through It is installed with Nut column (401), one end of the Nut column (401) is fixed with pasting board (402), and the inside of the clamping rings (4) is passed through It is installed with bolt (403), and to be threadedly coupled between bolt (403) and clamping rings (4), the screw (5) is through main body (1) Inside, and to be threadedly coupled between screw (5) and main body (1), inside of the fixed frame (6) through main body (1).

2. a kind of tower crane swing arm slewing limit structure according to claim 1, it is characterised in that: the main body (1) with Fixture block (3), which is constituted, to be flexibly connected, and the central axes of support column (2) and the central axes of fixture block (3) coincide.

3. a kind of tower crane swing arm slewing limit structure according to claim 1, it is characterised in that: the clamping rings (4) to be threadedly coupled between Nut column (401), and to be welded to connect between Nut column (401) and pasting board (402), and spiral shell Female column (401) and bolt (403) constitute vertical structure.

4. a kind of tower crane swing arm slewing limit structure according to claim 1, it is characterised in that: the fixed frame (6) It further include hydraulic cylinder (601), fixing shell (602), hydraulic stem (603), limited block (604), sliding slot (605), connecting rod (606) It is equipped with hydraulic cylinder (601) with the bottom of pulley (607), the fixed frame (6), and between fixed frame (6) and hydraulic cylinder (601) For nut fastening, the periphery of the hydraulic cylinder (601) is provided with fixing shell (602), and hydraulic cylinder (601) and fixing shell (602) to be fixedly connected between, the top linking of the hydraulic cylinder (601) has hydraulic stem (603), and hydraulic cylinder (601) and liquid To be flexibly connected between compression bar (603), the top linking of the hydraulic stem (603) has limited block (604), and limited block (604) The left and right sides be fixed with connecting rod (606), the left and right sides inner wall of the fixed frame (6) is welded with sliding slot (605), and sliding slot (605) be internally provided with pulley (607), the limited block (604) and fixture block (3) constitute snap-in structure.

5. a kind of tower crane swing arm slewing limit structure according to claim 4, it is characterised in that: the hydraulic cylinder (601) lifting structure is constituted by hydraulic stem (603) and limited block (604), and hydraulic stem (603) and limited block (604) are constituted Vertical structure.

6. a kind of tower crane swing arm slewing limit structure according to claim 4, it is characterised in that: the connecting rod (606) slide construction is constituted by pulley (607) and sliding slot (605), and is solid between connecting rod (606) and limited block (604) Fixed connection.