CN218058368U

CN218058368U - Counter weight device and aerial work platform

Info

Publication number: CN218058368U
Application number: CN202222364424.9U
Authority: CN
Inventors: 刘刚; 王德红; 赵忠立; 苏超飞; 周鹏飞
Original assignee: Lingong Heavy Machinery Co Ltd
Current assignee: Lingong Heavy Machinery Co Ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2022-12-16
Anticipated expiration: 2032-09-06

Abstract

The utility model belongs to the technical field of the counter weight, a counter weight device and aerial working platform is disclosed. The counterweight device comprises a front counterweight and two rear counterweights, the front counterweight is installed on the aerial work platform and located on the front side of the main vertical plate, the two rear counterweights are respectively fixed at the rear ends of the two main vertical plates through bolts, so that the aerial work platform is more convenient to install, and the rear counterweight and the front counterweight are used simultaneously to ensure the stable gravity center of the aerial work platform. The rear counterweight is arranged at the rear end of the main vertical plate, and the rear counterweight and the front counterweight are arranged on the rotary table at the same time, so that the stability of the whole machine when the rotary table rotates to a working condition parallel to the axis of the wheel is ensured. When the included angle between the arm support and the rotary table is larger, the central line of the left wheel is taken as a tipping line, and the rear counterweight part can provide stable support; when the included angle between the arm support and the rotary table is small, the central line of the right wheel is used as a tipping line, and the front counterweight part provides stable support.

Description

Counter weight device and aerial working platform

Technical Field

The utility model relates to a counter weight technical field especially relates to a counter weight device and aerial working platform.

Background

The front end of the rotary table of the aerial work platform is provided with the front balancing weight with a certain weight, and the weight and the position of the front balancing weight have extremely important functions relative to the anti-overturning stability and the construction safety of the aerial work platform.

However, when the aerial work platform works actually, when the turntable rotates to be parallel to the axis of the wheels of the aerial work platform, the aerial work platform is prone to side turning when the arm support inclines due to the fact that the wheel track is small. When the included angle between the arm support and the rotary table is large, the arm support is prone to rollover leftwards under the working condition, and when the included angle between the arm support and the rotary table is small, the arm support is prone to rollover rightwards. Therefore, the weight of the front balancing weight is required to be smaller when the included angle between the arm support and the rotary table is larger, and the weight is required to be larger when the included angle between the arm support and the rotary table is smaller so as to ensure the stability of the whole machine.

Aiming at the problems, in the prior art, the center of gravity is adjusted by adding or reducing counterweight materials in the front counterweight block, but the mode has lower flexibility, the angle of the arm support changes in real time when the aerial work platform continuously works, and the method has lower practicability.

Therefore, under the premise that the wheel track and the rated load are not changed, the stability requirement of the aerial work platform under various working conditions cannot be met only by the front balancing weight.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a counter weight device and aerial working platform to solve the problem of aerial working platform stability under various operating modes.

To achieve the purpose, the utility model adopts the following technical proposal:

the counterweight device comprises a front counterweight, the front counterweight is arranged on a rotary table of the aerial work platform, two main vertical plates which are distributed at intervals are arranged in the rotary table, and the front counterweight is positioned on the front side of the main vertical plates;

the two rear weight parts are fixedly arranged at the rear ends of the two main vertical plates respectively, and are positioned on two opposite sides of the main vertical plates respectively, and the rear weight parts are connected to the main vertical plates through fasteners.

As an alternative, a support member is arranged on the main vertical plate, and the rear weight member is fixed on the main vertical plate, and the bottom end of the rear weight member abuts against the support member.

As an alternative, a limiting groove is formed in the bottom end of the rear counterweight, and the supporting piece is limited in the limiting groove.

As an alternative, the supporting piece is a channel steel, the channel steel is welded on the main vertical plate, and the limiting groove is a square groove matched with the channel steel in shape.

As an alternative, on each main vertical plate and each rear weight member, the supporting members and the limiting grooves are arranged in a one-to-one correspondence manner, and two limiting grooves are respectively arranged.

As an alternative, the rear weight is provided with a cavity.

As an alternative scheme, a hoisting hole is formed in the rear weight piece and communicated with the cavity.

As an alternative, the rear weight is cast.

As an alternative, the fastening piece is a bolt, a threaded hole is formed in the rear counterweight, a through hole corresponding to the threaded hole is formed in the main vertical plate, and the bolt penetrates through the through hole and is connected with the threaded hole.

An aerial work platform comprising a counterweight as claimed in any preceding aspect.

The utility model has the advantages that:

the utility model provides a pair of counterweight device, including preceding counterweight and two back counterweights, preceding counterweight is installed on aerial working platform's revolving stage, is provided with two interval distribution's main riser in the revolving stage, and preceding counterweight is located one side of the front end of main riser. Two back counterweight pass through the fastener respectively and fixedly set up in the rear end of two main risers to it is more convenient to make the installation, and back counterweight and preceding counterweight use simultaneously in order to guarantee aerial working platform's focus stable. The rear counterweight is arranged at the rear end of the main vertical plate, and the rear counterweight and the front counterweight are arranged on the rotary table at the same time, so that the stability of the whole machine when the rotary table rotates to a working condition parallel to the axis of the wheel is ensured. When the included angle between the arm support and the rotary table is larger, the central line of the left wheel is taken as a tipping line, and the rear counterweight part can provide stable support; when the included angle between the arm support and the rotary table is small, the central line of the right wheel is used as a tipping line, and the front counterweight part provides stable support.

Drawings

Fig. 1 is a schematic view of a turntable of an aerial work platform according to an embodiment of the present invention, the turntable being parallel to a wheel axis;

fig. 2 is a top view of an aerial work platform according to an embodiment of the present invention;

fig. 3 is a schematic structural view illustrating that the rear weight member according to the embodiment of the present invention is mounted on the main vertical plate;

fig. 4 is a schematic structural view of a rear weight according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of the main vertical plate according to the embodiment of the present invention.

In the figure:

100. a turntable; 101. a main vertical plate; 1011. a through hole; 1012. a support member; 102. a connecting rod; 200. a front counterweight; 300. a boom;

1. a rear counterweight; 11. a threaded hole; 12. a limiting groove; 13. a cavity; 14. hoisting holes;

2. and (4) bolts.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts throughout, or parts having the same or similar functions. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specifically stated or limited, the terms "connected," "connected," and "fixed" are to be understood broadly, and may include, for example, a fixed connection, a detachable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediary, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, unless otherwise expressly specified or limited, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. 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. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1-5, the embodiment of the utility model provides a counterweight device, including preceding counterweight 200 and two back counterweights 1, preceding counterweight 200 is fixed to be set up in aerial platform's revolving stage 100's front end, and back counterweight 1 is fixed to be set up in revolving stage 100's rear end, and aerial platform sets up the focus of preceding counterweight 200 and back counterweight 1 in order to satisfy aerial platform during operation under various operating modes simultaneously and is stable. Two main vertical plates 101 distributed at intervals are arranged in the rotary table 100, the front weight part 200 is located on the front side of the main vertical plates 101, and the two rear weight parts 1 are respectively and fixedly arranged at the rear ends of the two main vertical plates 101 through fasteners and located on two opposite side surfaces of the two main vertical plates 101. Specifically, set up screw hole 11 on the back weight 1, be provided with the through-hole 1011 that corresponds with screw hole 11 on the main riser 101, the fastener is bolt 2, through passing bolt 2 through-hole 1011 and screw hole 11 threaded connection to make back weight 1 fixed connection on main riser 101, so that the installation is more convenient. In this embodiment, two bolts 2 are provided, two through holes 1011 are provided on the main vertical plate 101, two threaded holes 11 are provided on the rear weight member 1, and the two bolts 2 respectively penetrate through the two through holes 1011 to be connected with the two threaded holes 11, so that the connection is firmer.

According to the counterweight device, the rear counterweight 1 is arranged at the rear end of the main vertical plate 101, and the rear counterweight 1 and the front counterweight 200 are simultaneously arranged on the rotary table 100, so that the stability of the whole machine is ensured when the rotary table 100 rotates to a working condition parallel to the axis of a wheel. It can be understood that when the front-rear direction of the turntable 100 is parallel to the axis of the wheel, the aerial work platform is most prone to rollover. For example, when the included angle between the arm support 300 and the turntable 100 is large, the central line O1 of the left wheel is taken as a tipping line, and the rear counterweight 1 can provide stable support; when the included angle between the arm support 300 and the turntable 100 is small, the central line O2 of the right wheel is used as a tipping line, and the front counterweight 200 is used for stable support.

In order to improve the support stability of the rear counterweight 1, with reference to fig. 5, the two opposite side surfaces of the two main vertical plates 101 are provided with the supporting members 1012, when the rear counterweight 1 is fixedly connected with the main vertical plates 101, the bottom end of the rear counterweight 1 abuts against the supporting members 1012, and the supporting members 1012 can bear a part of the gravity of the rear counterweight 1, so that the bolt 2 is prevented from being damaged due to the excessive gravity of the rear counterweight 1, and the connection stability of the rear counterweight 1 is improved; and when the rear weight 1 is installed, the bottom end of the rear weight 1 abuts against the support member 1012, so that an assembler can install the bolt 2 conveniently.

Because the high altitude construction platform is walking in the twinkling of an eye and stopping in the twinkling of an eye back counterweight 1 has the ascending inertial force of horizontal direction, in order to guarantee the ascending stability of horizontal direction of back counterweight 1, refer to fig. 4, spacing groove 12 has been seted up to the bottom of back counterweight 1, and support piece 1012 is spacing in spacing groove 12 to prevent that back counterweight 1 and main riser 101 from taking place relative movement.

Further, support piece 1012 is the channel-section steel, and the channel-section steel welds with main riser 101, and the opening of channel-section steel down, and spacing groove 12 sets up to the square groove of shape and channel-section steel appearance looks adaptation, and the channel-section steel is spacing in square inslot, and the bottom surface and the channel-section steel of square groove deviate from open-ended end plate butt, two curb plate butts that the channel-section steel is relative respectively to two sides in square groove facies to make back counterweight 1 and support piece 1012 size adaptation more, stability is stronger.

Two supporting pieces 1012 are arranged on each main vertical plate 101, two limiting grooves 12 corresponding to the two supporting pieces 1012 are arranged on each rear counterweight 1, and when the rear counterweight 1 is mounted on the main vertical plate 101, the two supporting pieces 1012 are respectively limited in the two limiting grooves 12, so that the structure is more stable.

This back weight 1 matches the design according to the appearance structure of revolving stage 100 to guarantee that whole appearance is pleasing to the eye, therefore, after back weight 1 weight exceeded required weight, continued referring to fig. 4, the inside of back weight 1 sets up cavity 13, so that back weight 1 reduces weight, and does not influence the outward appearance.

In order to facilitate the carrying of the rear weight 1, the rear weight 1 is provided with a hoisting hole 14, the hoisting hole 14 is communicated with the cavity 13, and when the rear weight 1 needs to be carried and installed, a rope of a crane can be bound in the hoisting hole 14 so as to carry the rear weight 1.

The rear counterweight 1 is formed by casting, metal materials can be saved by casting, a more complex appearance structure can be formed, and the processing and manufacturing cost is relatively low.

In order to improve the stability of main vertical plates 101, with reference to fig. 5, two connecting rods 102 are disposed between the two main vertical plates 101, and two ends of each connecting rod 102 are welded to opposite side surfaces of the two main vertical plates 101.

The embodiment also provides an aerial work platform, and the counterweight device is applied to ensure that the aerial work platform can keep the stability of the whole aerial work platform under various working conditions.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Counterweight device, its characterized in that includes:

the front counterweight (200) is mounted on a rotary table (100) of the aerial work platform, two main vertical plates (101) distributed at intervals are arranged in the rotary table (100), and the front counterweight (200) is located on the front side of the main vertical plates (101);

two back counterweight (1), two back counterweight (1) are fixed respectively in two the rear end of main riser (101), and two back counterweight (1) is located two respectively main riser (101) both sides back to back, back counterweight (1) through the fastener connect in on main riser (101).

2. A counterweight device according to claim 1 characterized in that a support (1012) is arranged on said main vertical plate (101), said rear counterweight (1) is fixed on said main vertical plate (101) and the bottom end of said rear counterweight (1) abuts on said support (1012).

3. The counterweight device according to claim 2, characterized in that the bottom end of the rear counterweight (1) is provided with a limiting groove (12), and the supporting member (1012) is limited in the limiting groove (12).

4. The counterweight device according to claim 3, characterized in that the support (1012) is a channel steel welded to the main vertical plate (101), and the limiting groove (12) is a square groove with a shape matched with the channel steel.

5. A counterweight device according to claim 3, characterized in that said support member (1012) and said limiting groove (12) are disposed in one-to-one correspondence on each of said main vertical plate (101) and said rear counterweight (1), respectively two.

6. A counterweight device according to claim 1, characterized in that the rear counterweight (1) is provided with a cavity (13).

7. A counterweight device according to claim 6, characterized in that said rear counterweight (1) is provided with a hoisting hole (14), said hoisting hole (14) being in communication with said cavity (13).

8. A counterweight device according to claim 1, characterized in that the rear counterweight (1) is cast.

9. The counterweight device according to claim 1, characterized in that the fastener is a bolt (2), a threaded hole (11) is formed in the rear counterweight (1), a through hole (1011) corresponding to the threaded hole (11) is formed in the main vertical plate (101), and the bolt (2) passes through the through hole (1011) and is connected with the threaded hole (11).

10. Aerial work platform, characterized in that it comprises a counterweight according to any one of claims 1-9.