CN218620023U - Cargo boom of tower crane - Google Patents

Abstract

The utility model discloses a tower crane jib loading boom, including the jib loading boom body, the jib loading boom body includes fixed frame, and the equal fixed mounting in both ends has a plurality of bracing pieces around the fixed frame up end, and the top fixed mounting of a plurality of bracing pieces has the ejector pin. When the length of jib loading boom needs to be adjusted, make two spacing holes on two gag lever posts on the jib loading boom body aim at another jib loading boom body, remove two gag lever posts to the inside in two spacing holes, thereby two jib loading boom bodies to be connected carry on spacingly, insert in the articulated seat of second with first articulated seat after that, pass the hole of the articulated seat of first articulated seat and second with the round pin axle, and rotate screw rod screw in round pin epaxially, thereby can insert the articulated seat of second with first articulated seat and stabilize fixedly, then the staff uses a plurality of bolts to pass the through-hole, be connected mounting panel and fixed block, thereby be convenient for stabilize two jib loading boom bodies and connect, reach the effect of the length of quick adjustment jib loading boom.

Description

Cargo boom of tower crane

Technical Field

The utility model relates to a tower crane field specifically is a tower crane jib loading boom.

Background

The tower crane is a rotary crane with a movable arm arranged at the upper part of a high-rise tower body, has a large working range, is mainly used for vertical transportation of materials and component installation in the construction of multi-storey and high-rise buildings, and consists of three parts, namely a metal structure, a working mechanism and an electrical system, wherein the metal structure comprises the tower body, the movable arm, a base, an attachment rod and the like, the working mechanism comprises four parts, namely lifting, amplitude variation, rotation and walking, and the electrical system comprises a motor, a controller, a distribution frame, a connecting line, a signal and lighting device and the like.

Present tower crane jib loading boom when using, because the jib loading boom is a festival and connects, when carrying article to higher more far away, need splice the jib loading boom, adjust its length, when connecting the jib loading boom at present, be equipped with a dog on the side of fork seat inboard usually, adopt the round pin axle of inclined plane structure simultaneously, through the location inclined plane and the dog contact of round pin axle, the realization is to the axial positioning of round pin axle, then through the split pin in order to prevent droing of round pin axle again.

However, the connection structure has great difficulty in accurately positioning the pin shaft in the axial direction, and the insertion depth of the pin shaft is difficult to adjust according to actual conditions, so that the connection is not stable, the time of installing the crane boom is consumed, and the use of the crane boom is finally influenced.

Disclosure of Invention

The utility model aims at providing a tower crane jib loading boom has and is convenient for stabilize two jib loading boom bodies and connects, reaches the characteristics of the length effect of quick adjustment jib loading boom.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a tower crane jib loading boom, including the jib loading boom body, the jib loading boom body is including fixed frame, the equal fixed mounting in both ends has a plurality of bracing pieces around the fixed frame up end, the top fixed mounting of a plurality of bracing pieces has the ejector pin, the one end fixed mounting of ejector pin has the fixed plate, the lateral wall fixed mounting of fixed plate has first articulated seat, the other end fixedly connected with backup pad of ejector pin, the lateral wall fixed mounting of backup pad has the articulated seat of second, the lateral wall fixed mounting of the articulated seat of second has the limiting plate, the up end of limiting plate runs through and movable mounting has the screw rod. The up end fixed mounting of fixed frame one end has the mounting panel, and the up end fixed mounting of the fixed frame other end has the fixed block, and the lateral wall of mounting panel and fixed block all runs through the through-hole of having seted up a plurality of evenly distributed.

In order to facilitate carrying on spacingly with two jib loading boom bodies, as the utility model discloses a tower crane jib loading boom is preferred, the lateral wall of fixed frame one end runs through the spacing hole of having seted up two front and back distributions, and the lateral wall fixed mounting of the fixed frame other end has the gag lever post relative with two spacing holes respectively.

In order to increase the steadiness of fixed frame, as the utility model discloses a tower crane jib loading boom is preferred, the inside fixed mounting of fixed frame has a plurality of connecting rods.

In order to facilitate the hand-held movement of the staff, the utility model discloses a tower crane jib loading boom is preferred, is located the lateral wall fixed mounting of a plurality of bracing pieces of one side and has handrail.

In order to increase the connection stability of ejector pin and fixed frame, the weight of reducible jib loading boom simultaneously does the utility model discloses a tower crane jib loading boom is preferred, and a plurality of bracing pieces all are "V" type and two liang between fixed connection.

In order to be convenient for be connected it with the fixed block, as the utility model discloses a tower crane jib loading boom is preferred, the mounting panel is "L" form.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses, at first tower crane is at the in-process that uses, when needing to adjust the length of jib loading boom, and the staff stands on the jib loading boom body that has installed, and the jib loading boom body that supplementary loop wheel machine pulling was hoisted removes for two spacing holes on another jib loading boom body are aimed at to two gag lever posts on the jib loading boom body, remove two inside to two spacing holes with two gag lever posts, thereby carry on spacingly with two jib loading boom bodies of connecting. Insert the articulated seat of second with first articulated seat after that, then the staff passes the hole of the articulated seat of first articulated seat and second with the round pin axle, and rotate in the screw rod screw in round pin axle, thereby can insert the articulated seat of second with first articulated seat and stabilize fixedly, the fixed block removes the inside to the mounting panel this moment, then the staff uses a plurality of bolts to pass the through-hole, be connected mounting panel and fixed block, thereby be convenient for stabilize two jib loading boom bodies and connect, reach the effect of the length of quick adjustment jib loading boom.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a rear view of the supporting plate of the present invention;

fig. 3 is a structural diagram of the mounting plate and the fixing block of the present invention.

In the figure: 1. a fixing frame; 101. a connecting rod; 102. a support bar; 103. a grab bar; 2. a top rod; 3. a fixing plate; 301. a first hinge mount; 4. a support plate; 401. a second hinge mount; 402. a limiting plate; 403. a screw; 5. mounting a plate; 501. a fixed block; 502. a through hole; 6. a limiting hole; 601. a limiting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1 to 3, a tower crane boom, which comprises a boom body, the boom body comprises a fixing frame 1, a plurality of support rods 102 are fixedly mounted at the front end and the rear end of the upper end surface of the fixing frame 1, a top rod 2 is fixedly mounted at the tops of the support rods 102, a fixing plate 3 is fixedly mounted at one end of the top rod 2, a first hinge seat 301 is fixedly mounted on the outer side wall of the fixing plate 3, a support plate 4 is fixedly connected to the other end of the top rod 2, a second hinge seat 401 is fixedly mounted on the outer side wall of the support plate 4, a limit plate 402 is fixedly mounted on the outer side wall of the second hinge seat 401, and a screw 403 is penetrated through and movably mounted on the upper end surface of the limit plate 402. The up end fixed mounting of 1 one end of fixed frame has mounting panel 5, and the up end fixed mounting of the 1 other end of fixed frame has fixed block 501, and mounting panel 5 and fixed block 501's lateral wall all runs through the through-hole 502 of having seted up a plurality of evenly distributed.

In this embodiment, in the using process of the tower crane, when the length of the crane boom needs to be adjusted, a worker stands on the installed crane boom body, the auxiliary crane pulls the lifted crane boom body to move, so that the first hinged seat 301 is inserted into the second hinged seat 401, then the worker passes through the inner holes of the first hinged seat 301 and the second hinged seat 401 by using the pin shaft, and rotates the screw 403 to screw into the pin shaft, so that the first hinged seat 301 can be inserted into the second hinged seat 401 to be stably fixed, at this time, the fixing block 501 moves into the mounting plate 5, then the worker uses a plurality of bolts to pass through the through hole 502, and connects the mounting plate 5 and the fixing block 501, thereby facilitating the stable connection of the two crane boom bodies and achieving the effect of quickly adjusting the length of the crane boom.

The lateral wall of fixed frame 1 one end runs through and sets up two spacing holes 6 that distribute around, and the lateral wall fixed mounting of the fixed frame 1 other end has gag lever post 601 relative with two spacing holes 6 respectively. Through setting up gag lever post 601, when connecting two jibs for two gag lever posts 601 on the jib loading boom body aim at two spacing holes 6 on another jib loading boom body, make two gag lever posts 601 remove to the inside in two spacing holes 6, thereby carry on spacingly with two jib loading boom bodies of connecting.

A plurality of connecting rods 101 are fixedly mounted inside the fixed frame 1. Through installing a plurality of connecting rods 101, the stability of the fixed frame 1 can be increased, and the staff of being convenient for simultaneously walks on the fixed frame 1.

The outer side wall of the plurality of support bars 102 at one side is fixedly mounted with a handrail 103. By arranging the handrail 103, the working personnel can conveniently hold and walk.

The plurality of support rods 102 are all V-shaped and are fixedly connected with each other. By arranging the plurality of support rods 102 in a V shape, the connection stability of the ejector rod 2 and the fixed frame 1 is improved, and the weight of the crane boom can be reduced.

The mounting plate 5 is L-shaped. The mounting plate 5 is arranged to be L-shaped, so that the mounting plate can be conveniently connected with the fixing block 501.

The utility model discloses a theory of operation does:

firstly, in the process of using the device, when the length of the boom needs to be adjusted, a crane is used for hoisting a boom body to be installed, then a worker stands on the installed boom body, and the auxiliary crane pulls the hoisted boom body to move, so that two limiting rods 601 on the boom body are aligned with two limiting holes 6 on the other boom body, the two limiting rods 601 move to the insides of the two limiting holes 6, and the two connected boom bodies are limited. Then, the first hinge base 301 is inserted into the second hinge base 401, and then the worker inserts the pin shaft through the inner holes of the first hinge base 301 and the second hinge base 401, aligns the hole on the pin shaft with the screw 403, rotates the screw 403, and screws one end of the screw 403 into the pin shaft, so that the first hinge base 301 can be inserted into the second hinge base 401 for stable fixation. At this moment, the fixing block 501 moves to the inside of the mounting plate 5, and then a worker uses a plurality of bolts to pass through the through holes 502 to connect the mounting plate 5 and the fixing block 501, so that the two boom bodies are connected, and the length of the boom is convenient to adjust.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. A tower crane jib loading boom, includes the jib loading boom body, its characterized in that: the crane boom body comprises a fixed frame (1), a plurality of supporting rods (102) are fixedly mounted at the front end and the rear end of the upper end surface of the fixed frame (1), ejector rods (2) are fixedly mounted at the tops of the supporting rods (102), a fixed plate (3) is fixedly mounted at one end of each ejector rod (2), a first hinged seat (301) is fixedly mounted on the outer side wall of each fixed plate (3), a supporting plate (4) is fixedly connected to the other end of each ejector rod (2), a second hinged seat (401) is fixedly mounted on the outer side wall of each supporting plate (4), a limiting plate (402) is fixedly mounted on the outer side wall of each second hinged seat (401), and a screw rod (403) penetrates through and is movably mounted on the upper end surface of each limiting plate (402);

the up end fixed mounting of fixed frame (1) one end has mounting panel (5), the up end fixed mounting of the fixed frame (1) other end has fixed block (501), the lateral wall of mounting panel (5) and fixed block (501) all runs through-hole (502) of having seted up a plurality of evenly distributed.

2. A tower crane boom according to claim 1, wherein: the outer side wall of one end of the fixed frame (1) penetrates through two limiting holes (6) distributed in the front and at the back, and limiting rods (601) which are respectively opposite to the two limiting holes (6) are fixedly mounted on the outer side wall of the other end of the fixed frame (1).

3. A tower crane boom according to claim 1, wherein: a plurality of connecting rods (101) are fixedly arranged inside the fixing frame (1).

4. A tower crane boom according to claim 1, wherein: the outer side walls of the support rods (102) positioned on one side are fixedly provided with handrail rods (103).

5. A tower crane boom according to claim 1, wherein: the supporting rods (102) are V-shaped and are fixedly connected with each other.

6. A tower crane boom according to claim 1, wherein: the mounting plate (5) is L-shaped.

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