CN212292591U

CN212292591U - Balance arm of tower crane

Info

Publication number: CN212292591U
Application number: CN202020617637.6U
Authority: CN
Inventors: 冯志涛; 娄志豪; 任法伟
Original assignee: Zhengzhou Hongtai Construction Equipment Leasing Co ltd
Current assignee: Zhengzhou Hongtai Construction Equipment Leasing Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-01-05
Anticipated expiration: 2030-04-23

Abstract

The utility model discloses a balance arm of a tower crane, which comprises a mounting plate, a balance arm assembly and a counterweight mechanism; mounting a plate: the mounting plate is rectangular plate-shaped, a connecting hole is formed in the surface of the mounting plate, and the left end of the mounting plate is connected with a counterweight mechanism; balance arm assembly contains first fixed plate, fixed orifices, supporting shoe, second fixed plate, fixing bolt, third fixed plate and spacing, the lower surface at the mounting panel right-hand member is passed through nut fixed connection to the left end of first fixed plate, the upper surface equidistance fixedly connected with supporting shoe of first fixed plate intermediate position, the fixed orifices fixed connection that fixing bolt and supporting shoe upper surface were seted up is passed through to the one end of second fixed plate together, this tower crane's balance arm, simple structure, spare part is few, and it is comparatively convenient to adjust length, and the dismouting in-process is consuming time weak point, and the fault rate is low, and it is comparatively convenient to use in production.

Description

Balance arm of tower crane

Technical Field

The utility model relates to a hoist technical field specifically is a tower crane's balance arm.

Background

Tower cranes, also known as tower cranes, originate in western europe. The tower crane is the most common hoisting equipment in construction sites, also known as tower crane, and is composed of sections of extension (called as standard sections for short) and used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction. The tower crane is an indispensable device on a construction site. In the constitution of tower crane, the balance arm plays comparatively important effect in the hoist and mount, and the balance arm is provided with the counter weight structure at the tail end, realizes good stability when adding the article that the heavy object can realize hoist and mount different weight under the tractive of cable wire, according to balance arm and tower crane that application number 201210261520.9 provided, include: the arm body is provided with a counterweight mounting port; a occlusion part for adjusting the size of balanced heavy installing port, occlusion part install on the arm body and can be relative arm body motion, this balance arm and tower crane, the structure is complicated, and spare part is various, and it is comparatively inconvenient to adjust length, and the dismouting in-process is consuming time longer, and the fault rate is high, and production is inconvenient.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a balance arm of tower crane, simple structure, spare part is few, and it is comparatively convenient to adjust length, and the dismouting in-process weak point consuming time, the fault rate is low, and it is comparatively convenient to produce and use, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a balance arm of a tower crane comprises a mounting plate, a balance arm assembly and a counterweight mechanism;

mounting a plate: the mounting plate is rectangular plate-shaped, a connecting hole is formed in the surface of the mounting plate, and the left end of the mounting plate is connected with a counterweight mechanism;

the balance arm assembly: the balance arm assembly comprises a first fixing plate, a fixing hole, a supporting block, a second fixing plate, a fixing bolt, a third fixing plate and limiting strips, wherein the left end of the first fixing plate is fixedly connected to the lower surface of the right end of the mounting plate through a nut, the upper surface of the middle position of the first fixing plate is fixedly connected with the supporting block at equal intervals, one end of the second fixing plate is fixedly connected with the fixing hole formed in the upper surface of the supporting block through the fixing bolt, the lower surfaces of two sides of the third fixing plate are fixedly connected with the two limiting strips, the other end of the second fixing plate is connected to the inner sides of the two limiting strips in a clamped mode, and the second fixing plate of the clamped mode in the two limiting strips is fixedly connected with. First fixed plate in the balance arm assembly provides better bottom joint support, and the supporting shoe of top is the same with the thickness of third fixed plate, can make the second fixed plate realize better contact, is convenient for connect fixedly, and the setting of second fixed plate can cooperate first fixed plate to realize and the adjustment of length between the third fixed plate, has better practical use, the better hoist and mount heavy object of being convenient for.

Further, counter weight mechanism contains connecting plate, coupling nut, weight box, baffle and side fence, the connecting plate passes through coupling nut fixed connection and is at the upper surface of installation board left end, the left side of connecting plate is seted up jaggedly, fixedly connected with weight box in the breach, the left side and the upside of weight box set up to the opening form, baffle fixed connection is on the surface in the weight box left side opening outside, both sides are on the surface around the connecting plate fixed connection. The counter weight blocks of different weights can be placed to the weight box among the counter weight mechanism, and the setting of baffle is convenient for change the counter weight block, and the security when the side fence sets up the manual operation that has improved.

Further, still include connecting block and pivot, connecting block fixed connection is at the upper surface of third fixed plate intermediate position, the upper end of connecting block is provided with the opening, and the opening internal rotation is connected with the pivot. The rotating shaft on the connecting block can be conveniently connected with the steel cable, so that different tension requirements can be conveniently realized, and the practicability is high.

The protective guard is arranged on the front side and the rear side of the mounting plate, and the lower end of the protective guard is fixedly connected with the outer surfaces of the front side and the rear side of the mounting plate. The arrangement of the guard rail provides safety protection for workers installing and adjusting the steel cable.

Furthermore, the fixing device also comprises a fixing block and a connecting through hole, wherein the fixing block is fixedly connected in a mounting groove formed in the right end of the first fixing plate, and the fixing block is provided with a vertical connecting through hole in a penetrating manner. The arrangement of the fixing block and the connecting through hole facilitates the balance arm to be connected with the support frame well, and the mounting standard of practical occasions is met.

Compared with the prior art, the beneficial effects of the utility model are that: this balance arm of tower crane has following benefit:

1. this tower crane's balance arm adopts reinforced (rfd) connecting plate, connects through mutually supporting to form comparatively firm whole, can shorten consuming time in the equipment adjustment in-process moreover greatly, and can dismantle for less part, it is comparatively convenient to transport.

2. Meanwhile, compared with a triangular steel frame structure, the novel steel frame structure has the advantages that many welding spots do not exist, potential safety hazards are less, the stress capable of being supported is larger, the manufacturing process can be simplified, the manufacturing cost is saved, and the requirement on economic benefits is met for enterprises.

3. The balance arm of the tower crane is easy to purchase in building material markets in various places, reduces the manufacturing cost, has better competitive advantages in increasingly severe market competition, and is more easily accepted by people.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic bottom structure diagram of the present invention.

In the figure: the device comprises a mounting plate 1, a balance arm assembly 2, a first fixing plate 21, a fixing hole 22, a supporting block 23, a second fixing plate 24, a fixing bolt 25, a third fixing plate 26, a limiting strip 27, a counterweight mechanism 3, a connecting plate 31, a connecting nut 32, a counterweight box 33, a baffle 34, a side rail 35, a connecting block 4, a rotating shaft 5, a protective guard 6, a fixing block 7 and a connecting through hole 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-2, the present invention provides a technical solution: a balance arm of a tower crane comprises a mounting plate 1, a balance arm assembly 2 and a counterweight mechanism 3;

mounting plate 1: the mounting plate 1 is rectangular plate-shaped, a connecting hole is formed in the surface of the mounting plate 1, and the left end of the mounting plate 1 is connected with a counterweight mechanism 3; the counterweight mechanism 3 comprises a connecting plate 31, a connecting nut 32, a counterweight box 33, a baffle 34 and a side rail 35, wherein the connecting plate 31 is fixedly connected to the upper surface of the left end of the mounting plate 1 through the connecting nut 32, a gap is formed in the left side of the connecting plate 31, the counterweight box 33 is fixedly connected in the gap, the left side and the upper side of the counterweight box 33 are arranged to be in an opening shape, the baffle 34 is fixedly connected to the surface of the outer side of the opening in the left side of the counterweight box 33, and the side rail 35 is fixedly connected to the surfaces of the front side. The counterweight boxes 33 in the counterweight mechanism 3 can be used for placing counterweight blocks with different weights, the arrangement of the baffle plates 34 is convenient for replacing the counterweight blocks, and the arrangement of the side rails 35 improves the safety during manual operation. Still include connecting block 4 and pivot 5, connecting block 4 fixed connection is on the upper surface of third fixed plate 26 intermediate position, and the upper end of connecting block 4 is provided with the opening, and the opening internal rotation is connected with pivot 5. The rotating shaft 5 on the connecting block 4 can be conveniently connected with the steel cable, so that different tension requirements can be conveniently realized, and the practicability is strong.

Balance arm assembly 2: balance arm assembly 2 contains first fixed plate 21, fixed orifices 22, supporting shoe 23, second fixed plate 24, fixing bolt 25, third fixed plate 26 and spacing 27, the lower surface at the 1 right-hand member of mounting panel is passed through nut fixed connection to the left end of first fixed plate 21, the upper surface equidistance fixedly connected with supporting shoe 23 of first fixed plate 21 intermediate position, the fixed orifices 22 fixed connection that fixing bolt 25 and supporting shoe 23 upper surface were seted up is passed through to the one end of second fixed plate 24 together, two spacing 27 of lower fixed surface fixedly connected with of third fixed plate 26 both sides, the other end joint of second fixed plate 24 is in the inboard of two spacing 27, and the second fixed plate 24 and the third fixed plate 26 of joint pass through nut fixed connection in two spacing 27. First fixed plate 21 in the balance arm assembly 2 provides better bottom joint support, and the supporting shoe 23 of top is the same with the thickness of third fixed plate 26, can make second fixed plate 24 realize better contact, is convenient for connect fixedly, and the setting of second fixed plate 24 can cooperate first fixed plate 21 to realize and the adjustment of length between the third fixed plate 26, has better practical use, the better hoist and mount heavy object of being convenient for. The protective guard is characterized by further comprising protective guards 6, wherein the protective guards 6 are arranged on the front side and the rear side of the mounting plate 1, and the lower ends of the protective guards 6 are fixedly connected with the outer surfaces of the front side and the rear side of the mounting plate 1. The guard rail 6 is arranged to provide safety protection for workers installing the adjusting steel cable. The fixing device further comprises a fixing block 7 and a connecting through hole 8, the fixing block 7 is fixedly connected in a mounting groove formed in the right end of the first fixing plate 21, and the fixing block 7 is provided with a vertical connecting through hole 8 in a penetrating mode. The arrangement of the fixing block 7 and the connecting through hole 8 facilitates the good connection of the balance arm with the support frame, and the mounting standard of practical occasions is met.

When in use:

first fixed plate 21 in the balance arm assembly 2 provides better bottom joint support, and the supporting shoe 23 of top is the same with the thickness of third fixed plate 26, can make second fixed plate 24 realize better contact, is convenient for connect fixedly, and the setting of second fixed plate 24 can cooperate first fixed plate 21 to realize and the adjustment of length between the third fixed plate 26, has better practical use, the better hoist and mount heavy object of being convenient for. The counterweight boxes 33 in the counterweight mechanism 3 can be used for placing counterweight blocks with different weights, the arrangement of the baffle plates 34 is convenient for replacing the counterweight blocks, and the arrangement of the side rails 35 improves the safety during manual operation. The rotating shaft 5 on the connecting block 4 can be conveniently connected with the steel cable, so that different tension requirements can be conveniently realized, and the practicability is strong. The guard rail 6 is arranged to provide safety protection for workers installing the adjusting steel cable. The arrangement of the fixing block 7 and the connecting through hole 8 facilitates the good connection of the balance arm with the support frame, and the mounting standard of practical occasions is met.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A balance arm of a tower crane is characterized in that: comprises a mounting plate (1), a balance arm assembly (2) and a counterweight mechanism (3);

mounting plate (1): the mounting plate (1) is rectangular plate-shaped, a connecting hole is formed in the surface of the mounting plate (1), and the left end of the mounting plate (1) is connected with a counterweight mechanism (3);

balance arm assembly (2): the balance arm assembly (2) comprises a first fixing plate (21), a fixing hole (22), a supporting block (23), a second fixing plate (24), a fixing bolt (25), a third fixing plate (26) and a limiting strip (27), the left end of the first fixing plate (21) is fixedly connected with the lower surface of the right end of the mounting plate (1) through a nut, the upper surface of the middle position of the first fixing plate (21) is fixedly connected with supporting blocks (23) at equal intervals, one end of the second fixing plate (24) is fixedly connected with a fixing hole (22) formed on the upper surface of the supporting block (23) through a fixing bolt (25), the lower surfaces of the two sides of the third fixing plate (26) are fixedly connected with two limiting strips (27), the other end of the second fixing plate (24) is clamped at the inner sides of the two limit strips (27), and the second fixing plate (24) and the third fixing plate (26) which are clamped in the two limiting strips (27) are fixedly connected through nuts.

2. The balance arm of a tower crane according to claim 1, wherein: counter weight mechanism (3) contain connecting plate (31), coupling nut (32), weight box (33), baffle (34) and side fence (35), connecting plate (31) are through coupling nut (32) fixed connection at the upper surface of mounting panel (1) left end, the left side of connecting plate (31) is seted up jaggedly, fixedly connected with weight box (33) in the breach, the left side and the upside of weight box (33) set up to the opening form, baffle (34) fixed connection is on the surface in weight box (33) left side opening outside, both sides are on the surface around connecting plate (31) fixed connection to side fence (35).

3. The balance arm of a tower crane according to claim 1, wherein: still include connecting block (4) and pivot (5), connecting block (4) fixed connection is on the upper surface of third fixed plate (26) intermediate position, the upper end of connecting block (4) is provided with the opening, and the opening internal rotation is connected with pivot (5).

4. The balance arm of a tower crane according to claim 1, wherein: the protective guard is characterized by further comprising protective guards (6), wherein the protective guards (6) are arranged on the front side and the rear side of the mounting plate (1), and the lower ends of the protective guards (6) are fixedly connected with the outer surfaces of the front side and the rear side of the mounting plate (1).

5. The balance arm of a tower crane according to claim 1, wherein: the fixing device is characterized by further comprising a fixing block (7) and a connecting through hole (8), wherein the fixing block (7) is fixedly connected in a mounting groove formed in the right end of the first fixing plate (21), and the fixing block (7) is provided with the vertical connecting through hole (8) in a penetrating mode.