CN215513913U

CN215513913U - Suspension vibration reduction structure for cab of hoisting machinery

Info

Publication number: CN215513913U
Application number: CN202120275294.4U
Authority: CN
Inventors: 许铁巧; 李保红; 陈雷彬; 郑洪权; 孙昌凯
Original assignee: Xuzhou Heavy Machinery Co Ltd
Current assignee: Xuzhou Heavy Machinery Co Ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2022-01-14
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses a suspension vibration reduction structure for a cab of hoisting machinery, which comprises a cab bottom beam and a frame support, wherein the cab bottom beam and the frame support are fixedly connected through a double-layer vibration reduction block, an upper suspension vibration reduction block is arranged on the upper side of the frame support, a lower suspension vibration reduction block is arranged on the lower side of the frame support, the lower suspension vibration reduction block is connected with the upper suspension vibration reduction block, and a reinforcing plate is arranged at the connection part of the frame support and the upper suspension vibration reduction block. According to the suspension vibration attenuation structure, the double-layer vibration attenuation blocks are used for effective buffering and energy absorption, the vibration frequency can be reduced, the rubber vibration attenuation blocks are reinforced and limited, and the frame support is connected in a wrapping mode, so that the installation stability and the vibration attenuation effect of a cab are improved. The utility model can improve the operation comfort of the cab, reduce the fatigue of operators and improve the safety of vehicles.

Description

Suspension vibration reduction structure for cab of hoisting machinery

Technical Field

The utility model relates to a suspension vibration reduction structure for a cab of hoisting machinery, and belongs to the technical field of hoisting machinery.

Background

The hoisting machine is a general name of a series of hoisting machines developed aiming at construction areas such as construction sites, factory building, bridge construction and the like.

The cab is divided into a cab and an operating cab, wherein the cab is used when the driver runs on a road, and the operating cab is used by an operator when the operator performs lifting operation. The cab is a driving center of the hoisting machinery, the comfort level of the cab in the driving process is determined by the connecting structure of the cab and the frame part, the stability of the connecting structure needs to be considered, and meanwhile, the buffering and vibration damping structure in the driving process needs to be considered, so that the inertia force or bumpy vibration in the driving process is absorbed, and the driving comfort level is improved.

At present, a cab is in a form of connecting a single-layer rubber block with a frame, as shown in an attached figure 1, although the structure has a certain vibration absorption effect, the vibration attenuation effect on vibration with larger amplitude or higher frequency is not good due to smaller stroke. The control cabin adopts the form that the control cabin support and the revolving stage are directly welded together, as shown in figure 2, in the use, vibration can be directly transmitted to the cab, the damping effect is poor, and the driving comfort of the cab is influenced.

With the continuous development of engineering machinery, the requirements of people on the driving comfort and the operation comfort of a cab of the engineering machinery are continuously improved. The suspension structure is used as an important element for reducing the vibration of the cab, has an important effect on the comfort of the cab, and can reduce the fatigue of operators and improve the safety of vehicles. The cab in the prior art has limited damping effect and needs to be improved by designing a new scheme.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a suspension vibration reduction structure for a cab of hoisting machinery, which can effectively reduce vibration frequency, improve the operating comfort of the cab, reduce the fatigue of operators and improve the safety of vehicles.

In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:

the utility model provides a suspension damping structure for hoisting machinery cab, includes cab floorbar and frame support, cab floorbar and frame support pass through double-deck damping piece fixed connection, the suspension damping piece is installed to the upside of frame support, the downside of frame support is equipped with down the suspension damping piece, the suspension damping piece is connected in last suspension damping piece down, the frame support is equipped with the reinforcing plate with the position that last suspension damping piece is connected.

Furthermore, go up suspension damping piece and be the rubber block, its upper portion is cylindricly, and the lower part arch passes through interference fit installation with frame support and reinforcing plate, can be through the supplementary installation of soft hammer. In cooperation with the lower suspension vibration damping block, the lower suspension vibration damping block is a circular rubber block and is sleeved outside the lower protrusion of the upper suspension vibration damping block.

Still further, the reinforcing plate is also circular ring-shaped, and the bottom of the inner wall of the circular ring is provided with a flange which is matched with the upper suspension vibration damping block for installation.

Furthermore, the cab bottom beam, the upper suspension vibration damping block, the frame support and the lower suspension vibration damping block can be connected through bolts and nuts.

Still further, the top of going up the suspension damping piece and the bottom of lower suspension damping piece all are equipped with the installation backing plate, the bolt passes the installation backing plate. To prevent loosening, a pin may also be inserted into the bolt.

Further, the reinforcing plate is arranged at the upper part or the lower part of the frame bracket. The reinforcing plate can meet the thickness requirement of connection of the cab and the frame bracket, is suitable for different structural forms, and reserves larger space for components.

The suspension vibration reduction structure can be arranged at four installation positions of the left front part, the right front part, the left rear part and the right rear part of the cab. The left front mounting point and the right front mounting point can adopt double-layer rubber blocks with larger relative diameters and higher rigidity so as to share that the left back mounting point and the right back mounting point can adopt double-layer rubber blocks with smaller relative diameters and lower rigidity.

Compared with the prior art, the utility model has the following beneficial effects:

according to the suspension vibration attenuation structure, the double-layer vibration attenuation blocks are used for effective buffering and energy absorption, the vibration frequency can be reduced, the rubber vibration attenuation blocks are reinforced and limited, and the frame support is connected in a wrapping mode, so that the installation stability and the vibration attenuation effect of a cab are improved. The utility model can improve the operation comfort of the cab, reduce the fatigue of operators and improve the safety of vehicles.

Drawings

Fig. 1 is a structural view of a cab and frame connection form in the prior art.

Fig. 2 is a block diagram of a prior art cab to frame connection.

Fig. 3 is a schematic structural diagram of a suspension damping structure for a cab of a hoisting machine according to embodiment 1 of the present invention.

Fig. 4 is a schematic structural diagram of a suspension damping structure for a cab of a hoisting machine according to embodiment 2 of the present invention.

In the figure: the method comprises the following steps of 1-cab bottom beam, 2-frame support, 3-upper suspension vibration damping block, 4-lower suspension vibration damping block, 5-reinforcing plate, 51-flange, 6-bolt, 7-nut, 8-mounting base plate and 9-pin.

Detailed Description

The utility model is further described below 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", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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.

Example 1

The utility model provides a suspension damping structure for hoisting machinery cab, includes cab floorbar 1 and frame support 2, cab floorbar 1 and frame support 2 are through double-deck damping piece fixed connection, suspension damping piece 3 is installed to the upside of frame support 2, the downside of frame support 2 is equipped with suspension damping piece 4 down, suspension damping piece 4 is connected in last suspension damping piece 3 down, the position that frame support 2 and last suspension damping piece 3 are connected is equipped with reinforcing plate 5.

Go up suspension damping piece 3 and be the rubber block, its upper portion is cylindricly, and the lower part is protruding to be installed through the supplementary interference fit of soft hammer with frame support 2 and reinforcing plate 5. The lower suspension vibration damping block 4 is a circular rubber block and is sleeved outside the lower protrusion of the upper suspension vibration damping block 3.

In this embodiment, the cab bottom beam 1, the upper suspension vibration damping block 3, the frame bracket 2 and the lower suspension vibration damping block 4 are connected through a bolt 6 and a nut 7. The top of the upper suspension vibration-damping block 3 and the bottom of the lower suspension vibration-damping block 4 are both provided with mounting base plates 8, the bolt 6 penetrates through the mounting base plates 8, and a pin 9 is further inserted into the bolt 6 to prevent looseness.

In this embodiment, the reinforcing plate 5 is disposed on the upper portion of the frame bracket 2, the reinforcing plate 5 is also in a circular ring shape, and a flange 51 is disposed at the bottom of the inner wall of the circular ring and is installed in cooperation with the upper suspension damping block 3.

The suspension vibration damping structure is installed at four installation positions of the left front part, the right front part, the left rear part and the right rear part of the cab. The left front mounting point and the right front mounting point are double-layer rubber blocks with large relative diameters and high rigidity, and the left back mounting point and the right back mounting point are double-layer rubber blocks with small relative diameters and low rigidity.

Example 2

The reinforcing plate 5 of the present embodiment is disposed at the lower portion of the frame bracket 2, and provides a larger space for the components. The reinforcing plate 5 is also in a circular ring shape, and the bottom of the inner wall of the circular ring is provided with a flange 51 which is matched with the upper suspension vibration damping block 3.

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

Claims

1. The utility model provides a suspension damping structure for hoisting machinery cab, includes cab floorbar (1) and frame support (2), its characterized in that cab floorbar (1) and frame support (2) are through double-deck damping piece fixed connection, suspension damping piece (3) are installed to the upside of frame support (2), the downside of frame support (2) is equipped with down suspension damping piece (4), suspension damping piece (4) are connected in last suspension damping piece (3) down, frame support (2) are equipped with reinforcing plate (5) with the position that last suspension damping piece (3) are connected.

2. The suspension damping structure for the cab of hoisting machinery according to claim 1, wherein the upper suspension damping block (3) is a rubber block, the upper portion of which is cylindrical, and the lower protrusion is installed with the frame bracket (2) and the reinforcing plate (5) by interference fit.

3. The suspension damping structure for the cab of the hoisting machinery according to claim 2, wherein the lower suspension damping block (4) is an annular rubber block, and is sleeved outside a protrusion at the lower part of the upper suspension damping block (3).

4. The suspension damping structure for the cab of the hoisting machinery according to claim 2, wherein the reinforcing plate (5) is annular, and a flange (51) is arranged at the bottom of the inner wall of the annular and is matched with the upper suspension damping block (3) for installation.

5. The suspension damping structure for the cab of hoisting machinery according to claim 1, wherein the cab bottom beam (1), the upper suspension damping block (3), the frame bracket (2) and the lower suspension damping block (4) are connected through bolts (6) and nuts (7).

6. The suspension damping structure for the cab of hoisting machinery according to claim 5, wherein the top of the upper suspension damping mass (3) and the bottom of the lower suspension damping mass (4) are provided with mounting base plates (8), and the bolts (6) pass through the mounting base plates (8).

7. The suspension shock absorbing structure for a cab of hoisting machinery according to claim 5, characterized in that a pin (9) is further inserted in the bolt (6).

8. The suspension shock absorbing structure for a cab of hoisting machinery according to claim 1, wherein the reinforcing plate (5) is provided at an upper portion or a lower portion of the frame bracket (2).

9. The suspension damping structure for a cab of hoisting machinery according to any one of claims 1 to 8, wherein the suspension damping structure is mounted at four mounting points of a left front, a right front, a left rear and a right rear of the cab.