CN204222576U - Large-scale underground trackless vehicle swing crane span structure - Google Patents

Abstract

The utility model discloses a large underground trackless vehicle swing bridge, which comprises an upper swing bridge and a lower swing bridge, wherein two ends of the upper swing bridge and the lower swing bridge are respectively hinged through a joint bearing and a shaft, and a thrust joint bearing is arranged between the upper swing bridge and the lower swing bridge on the shaft of at least one end; both ends of the shaft are supported on the lower swing bridge frame, and the joint bearing is provided with a closed structure. When the road surface is uneven, the vertical swing bridge frame can swing transversely through the shaft and the joint bearing, so that the front and rear drive axles can smoothly contact with the ground, and sufficient traction force is provided; the traction force in the running process of the underground trackless vehicle is transmitted to the upper swing bridge frame from the lower swing bridge frame through the thrust knuckle bearing to reach the vehicle body, and the underground trackless vehicle has the advantages of simple structure, uniform stress and long service life.

Description

A large-scale underground trackless vehicle swing bridge

technical field

The utility model relates to a mining shovel loading and transporting equipment, in particular to a large-scale underground trackless vehicle swing bridge frame.

Background technique

The shoveling and transportation equipment of underground metal mines are driving on the potholed roads of underground mines, and the bumps are severe. In order to ensure that the tires of the underground trackless vehicle are not suspended in the air and have sufficient traction, a swing bridge frame is required to allow a drive axle of the vehicle to swing laterally with the vehicle body so that the tires are always in contact with the ground.

In the prior art, similar patents of the same type: "Swing Frame" with application number 201020617048.4 and "A New Type Swing Frame for Scraper" with application number 201120200552.9 have poor stress and short service life.

Utility model content

The purpose of the utility model is to provide a large-scale underground trackless vehicle swing bridge frame with simple structure, uniform force and long service life.

The purpose of this utility model is achieved by the following technical solutions:

The large-scale underground trackless vehicle swing bridge of the present utility model comprises an upper swing bridge and a lower swing bridge. There is a thrust joint bearing between the upper swing bridge and the lower swing bridge;

The upper swing bridge is fixed to the car body of the trackless vehicle, and the lower swing bridge rides on the driving axle to surround the driving axle and is connected with the driving axle by bolts.

It can be seen from the above-mentioned technical solution provided by the utility model that when the large-scale underground trackless vehicle swing bridge frame provided by the embodiment of the utility model encounters uneven road surface, the vertical swing bridge frame realizes lateral swing through the shaft and the joint bearing, so that the front and rear The drive axle can smoothly contact the ground and provide sufficient traction; the traction force of the underground trackless vehicle is transmitted from the lower swing bridge frame through the thrust joint bearing to the upper swing bridge frame to reach the car body, with simple structure, uniform force and long service life. .

Description of drawings

Fig. 1 is the overall structure schematic diagram of the large-scale underground trackless vehicle swing bridge that the utility model embodiment provides;

Fig. 2 is the schematic cross-sectional structure diagram of the large-scale underground trackless vehicle swing bridge provided by the embodiment of the present invention;

Fig. 3 is a schematic structural view of the upper swing bridge in the embodiment of the utility model;

Fig. 4 is a schematic structural view of the lower swing bridge in the embodiment of the present invention;

Fig. 5 is a schematic diagram of the structure of the lower plate in the embodiment of the present invention.

1. Upper swing bridge; 2. Lower swing bridge; 3. Lower plate; 4. Thrust joint bearing; 5. First shaft; 6. Joint bearing; 7. Second shaft.

Detailed ways

The embodiments of the present utility model will be further described in detail below.

The preferred embodiment of the large-scale underground trackless vehicle swing bridge of the present utility model is:

It includes an upper swing bridge and a lower swing bridge, the two ends of the upper swing bridge and the lower swing bridge are respectively hinged through joint bearings and shafts, and at least one end of the shaft is provided between the upper swing bridge and the lower swing bridge. Thrust joint bearing;

The upper swing bridge is fixed to the car body of the trackless vehicle, and the lower swing bridge rides on the driving axle to surround the driving axle and is connected with the driving axle by bolts.

The lower part of the lower swing bridge frame is fixed with a lower plate, and the lower plate is connected with the drive axle through bolts.

Both ends of the shaft are supported on the lower swing bridge, the joint bearing is arranged in the middle of the shaft, and the upper swing bridge is supported on the joint bearing.

The joint bearing is provided with a closed structure.

Specific examples:

As shown in FIGS. 1 to 5 , it includes an upper swing bridge 1 and a lower swing bridge 2 , and the two parts are connected through joint bearings 6 and shafts 5 and 7 .

The principle of realizing the lateral swing of underground trackless vehicles:

The upper swing bridge 1 is welded with the body of the trackless vehicle; the lower swing bridge 2 and the lower plate 3 ride on the driving axle, surround the driving axle, and connect with the driving axle by bolts. When the road surface is uneven, the up and down swing bridge realizes lateral swing through the shaft and joint bearings, so that the front and rear drive axles can smoothly contact the ground and provide sufficient traction. The traction force during the running of the underground trackless vehicle is transmitted from the lower swing bridge frame through the thrust joint bearing 4 to the upper swing bridge frame to reach the car body.

Distinguishing features of other swing bridges:

1. The structure is well stressed. In the past swinging bridge, the cantilever beam structure is used to connect the upper and lower swinging structures, that is, only one end of the stressed shaft is supported, and the force is not good. One of the characteristics of the utility model is that both ends of the shaft are supported, and the stress situation is greatly improved.

2. Use the spherical plain bearing 6 with a closed structure to prevent muddy water from underground mines from entering the bearing and cause damage to the bearing and shorten the life of the bearing. The service life of the structure is greatly increased.

3. Thrust joint bearing 4 is adopted to bear the axial traction force. In large-scale underground trackless equipment, the traction force is very large, and the thrust joint bearing is added to avoid damage to the bearing or shorten the life of the tapered bearing used in the joint bearing or other structures when the axial force is too large.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any person familiar with the technical field can easily think of All changes or replacements should fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (4)

1. a Large Underground free-wheel car swings crane span structure, it is characterized in that, comprise swing crane span structure and lower swing crane span structure, the two ends of described upper swing crane span structure and lower swing crane span structure respectively by oscillating bearing and axle hinged, and the axle of wherein at least one end swing between crane span structure and lower swing crane span structure on described be provided with thrust articulated bearing;

The car body of described upper swing crane span structure and free-wheel car is fixed, and described lower swing crane span structure rides over above drive axle and drive axle is surrounded, and is connected with drive axle by bolt.

2. Large Underground free-wheel car according to claim 1 swings crane span structure, and it is characterized in that, the bottom of described lower swing crane span structure is fixed with lower plate, and described lower plate is connected with drive axle by bolt.

3. Large Underground free-wheel car according to claim 2 swings crane span structure, and it is characterized in that, the two ends of described axle are all supported on described lower swing crane span structure, and described oscillating bearing is located at the middle part of axle, and described upper swing crane span structure is supported on described oscillating bearing.

4. Large Underground free-wheel car according to claim 3 swings crane span structure, and it is characterized in that, described oscillating bearing is provided with enclosed construction.