CN212503733U

CN212503733U - Counter weight bracket and crane

Info

Publication number: CN212503733U
Application number: CN202020929408.8U
Authority: CN
Inventors: 孙岩; 贾晓杰; 计海兵; 季广科
Original assignee: Xuzhou Heavy Machinery Co Ltd
Current assignee: Xuzhou Heavy Machinery Co Ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-02-09
Anticipated expiration: 2030-05-28

Abstract

The utility model discloses a counterweight bracket, which comprises a box-shaped structure and a longitudinal beam structure; the box-type structure is detachably connected with the corresponding position on the upper surface of the frame through a fixing device; the longitudinal beam structures are arranged on two sides of the top of the box-shaped structure to form a groove space for resetting the suspension arm; the longitudinal beam structure is provided with a positioning mechanism for positioning the movable balancing weight; the utility model discloses this process of frame is installed to the counter weight bracket from ground around effectively having avoided the hoist operation at every turn. Therefore, a large amount of time is saved, the working efficiency is improved, and the links of installing and disassembling the counterweight bracket are omitted; potential danger brought to working personnel in the process of installing the counterweight bracket is effectively avoided.

Description

Counter weight bracket and crane

Technical Field

The utility model relates to a counter weight bracket and hoist belongs to hoist technical field.

Background

At present, the application of the crane is wider and wider, and with the increase of the operation height and the increase of the lifting tonnage of the crane, the tipping moment in the operation process is increased, so that a plurality of potential dangers are brought to the lifting operation. Therefore, the installation of the counterweight is an effective method for improving the hoisting performance of the crane.

As the crane is a special vehicle, in order to reduce the weight born by a driving rear axle as much as possible, the counterweight of the crane is divided into a fixed counterweight and a movable counterweight. The movable counter weight is detached when the crane is in a running state so as to reduce the weight born by the rear axle, and is installed before the crane works so as to improve the hoisting performance of the crane.

In the early stage, when installing the movable counterweight, the operator needs to try on the installation many times and can accomplish with ground workman's assistance, and in whole assembly process, the positioning accuracy of movable counterweight is relatively poor, and is very consuming time. Meanwhile, the manual assistance of workers is needed, so that great potential safety hazards are brought to ground workers. Based on the defects, when the movable counter weight is installed, an operator can accurately find the position of the falling point of the movable counter weight by using the positioning pin shaft on the counter weight bracket as a reference, so that the installation process of the whole counter weight is completed quickly.

However, with existing designs, neither crane can travel with the counterweight carrier itself. Each lifting operation requires the counterweight brackets to be mounted from the ground onto the slewing center front frame. In the driving state, the counterweight bracket needs to be detached again, and an additional vehicle is needed for transporting the counterweight bracket. This is both time consuming and adds to the operating costs for the crane user.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the problem that in the prior art, a counterweight bracket needs to be installed on a front frame of a rotation center from the ground during each lifting operation; the movable counterweight is also required to be detached again in a running state, and an additional vehicle is required to transport the movable counterweight; therefore, the counterweight bracket and the crane are time-consuming, and the operating cost is increased for a crane user.

A counterweight bracket comprises a box-type structure and a longitudinal beam structure;

the box-type structure is detachably connected with the corresponding position on the upper surface of the frame through a fixing device; the longitudinal beam structures are arranged on two sides of the top of the box-shaped structure to form a groove space for resetting the suspension arm; and the longitudinal beam structure is provided with a positioning mechanism for positioning the movable balancing weight.

Preferably, the positioning mechanism is a positioning pin.

Preferably, the longitudinal beam structures are provided in at least two groups.

Preferably, a reinforcing plate connected with the longitudinal beam structure is arranged on the box-type structure.

Preferably, the bottom of the box-type structure is provided with a fixed clamping groove.

Preferably, the securing means is a bayonet assembly.

A crane comprising a counterweight carriage as in any preceding claim.

Compared with the prior art, the utility model discloses the beneficial effect who reaches:

1. the utility model discloses it can play a positioning action when the installation counter weight, and utilizes this counter weight bracket, and during the operation of hoist transition, can directly carry the counter weight bracket and travel. Compared with the existing design method, the additional vehicle for carrying the counterweight bracket can be directly saved, and the operation cost is reduced.

2. The utility model discloses this process of frame is installed to the counter weight bracket from ground around effectively having avoided the hoist operation at every turn. Therefore, a large amount of time is saved, the working efficiency is improved, and the links of installing and disassembling the counterweight bracket are omitted. Potential danger brought to working personnel in the process of installing the counterweight bracket is effectively avoided.

3. The utility model discloses the counter weight bracket structure is dismantled and assembled, arranges according to the frame difference and selects the dismouting state. Therefore, the device has simple structure and is economical and effective.

Drawings

FIG. 1 is a schematic view of a counterweight bracket according to the present invention;

FIG. 2 is a rear view of the counterweight bracket of the present invention;

FIG. 3 is a schematic view of the counterweight bracket of the present invention;

fig. 4 is a schematic view of the movable weight of the present invention.

In the figure: 5. positioning holes; 6. positioning a pin shaft; 7. a stringer structure; 8. a bottom box structure; 9. a counterweight bracket; 10. a suspension arm; 11. a frame; 12. and a reinforcing plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1-4, a counterweight bracket is disclosed, comprising a box-type structure 8 and a stringer structure 7; the box-type structure 8 is matched with a corresponding structure on the front plane of the frame 11 and can be detached, a fixed clamping groove is formed in the bottom of the box-type structure 8 in the direction perpendicular to the running direction of the vehicle, and the box-type structure is matched with the corresponding structure to conveniently select the dismounting state according to different arrangement of the frame; at least two groups of longitudinal beam structures 7 are arranged; the longitudinal beam structures 7 are arranged on two sides of the top of the box-shaped structure 8 to form a groove space for providing the resetting of the suspension arm 10 (as shown in figure 2); thereby realizing the running function of the vehicle carrying the counterweight bracket 9 (shown in figure 3); and a reinforcing plate 12 connected with the longitudinal beam structure 7 is arranged on the box-shaped structure 8 to increase the stability of the connection between the box-shaped structure 8 and the longitudinal beam structure 7. As shown in fig. 4, a positioning pin 6 for positioning the movable weight block is disposed on the longitudinal beam structure 7, and the positioning pin 6 is adapted to the positioning hole 5 of the movable weight block.

As shown in figure 3, the crane comprises the counterweight bracket as described in any one of the above, the counterweight bracket 9 is arranged on the frame 11, the middle of the counterweight bracket is provided with a groove space for providing the resetting requirement, the crane can travel with the counterweight bracket by utilizing the structure, the frequent disassembling process of the counterweight bracket is omitted, and the counterweight bracket is prevented from being transported by an additional vehicle. The method is convenient, fast, economical and effective when the crane is in operation transition.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. A counterweight bracket is characterized by comprising a box-type structure (8) and a longitudinal beam structure (7);

the box-type structure (8) is detachably connected with the corresponding position of the upper surface of the frame (11) through a fixing device; the longitudinal beam structures (7) are arranged on two sides of the top of the box-type structure (8) to form a groove space for resetting the suspension arm (10); and a positioning mechanism for positioning the movable balancing weight is arranged on the longitudinal beam structure (7).

2. A counterweight carrier according to claim 1, in which the locating means is a locating pin (6).

3. A counterweight carrier according to claim 1, in which there are at least two sets of said stringer means (7).

4. A counterweight carriage in accordance with claim 1, characterized in that the box-shaped structure (8) is provided with stiffening plates (12) connected to the stringer structure (7).

5. A counterweight bracket according to claim 1, characterized in that the bottom of said box-like structure (8) is provided with fixing notches.

6. A weight carriage as claimed in claim 1 wherein the fixing means is a pin shaft assembly.

7. A crane comprising a counterweight carriage as claimed in any one of claims 1 to 6.