CN108146316B

CN108146316B - Mining dump truck carriage with lifting support

Info

Publication number: CN108146316B
Application number: CN201711297881.8A
Authority: CN
Inventors: 陈鹏彪; 闫军利; 宫继成; 李官平; 王飞宇; 王英杰; 郭元元; 郭海全; 高利军; 贾占军; 张春云
Original assignee: Inner Mongolia North Hauler JSCL
Current assignee: Inner Mongolia North Hauler JSCL
Priority date: 2017-12-08
Filing date: 2017-12-08
Publication date: 2021-07-30
Anticipated expiration: 2037-12-08
Also published as: AU2018380443B2; AU2018380443A1; WO2019110020A1; CN108146316A

Abstract

The invention discloses a mining dump truck carriage provided with a lifting support, which comprises a bottom plate and a bottom plate rib groove, wherein the bottom plate rib groove is connected to the bottom of the bottom plate, the mining dump truck carriage further comprises the lifting support, and the lifting support comprises: u-shaped rib grooves and two hinged plates; the hinged plate is provided with two lightening holes and a hinged hole, the hinged hole is positioned in the middle of the hinged plate, and the lightening holes are positioned on two sides of the hinged hole; the U-shaped rib groove is connected between the two hinged plates, is positioned outside the lightening hole, is formed by integral bending and has a U-shaped structure in section; two adjacent bottom plate rib grooves respectively penetrate through the two lightening holes, the hinged plate is connected with the contact surface of the bottom plate, and the bottom plate rib grooves are connected with the contact surface of the lightening holes. The invention can effectively reduce the high stress concentration of the hinged part of the lifting oil cylinder and the carriage bottom plate in the unloading process of the carriage of the mining dump truck, and reduce the failure rate of the part.

Description

Mining dump truck carriage with lifting support

Technical Field

The invention relates to a mining dump truck, in particular to a mining dump truck carriage with a lifting support.

Background

The mining dump truck is the main transportation equipment of the open mine, and the equipment has the characteristics of heavy load, long continuous operation time and high structural reliability requirement. During the unloading process of the mining dump truck, the carriage is required to be quickly lifted to a specified position under the action of the lifting oil cylinder in a short time to realize the inclination of the material of the device.

Because the mining dump truck needs to carry out frequent loading and unloading in the operation process, and the high stress concentration of the hinged part of the lifting oil cylinder and the carriage bottom plate in the unloading process of the carriage easily causes the early damage of the part, thereby influencing the service life of the vehicle.

Disclosure of Invention

The technical problem solved by the invention is to provide the mining dump truck carriage with the lifting support, which can effectively reduce the high stress concentration of the hinged part of the lifting oil cylinder and the carriage bottom plate in the unloading process of the mining dump truck carriage, reduce the fault rate of the part, and can heat the bottom plate by using the waste heat of the tail gas, thereby ensuring the attendance rate of the whole truck.

A lifting support comprises a hinged plate and a U-shaped rib groove; the hinged plate is provided with two lightening holes and a hinged hole, the hinged hole is positioned in the middle of the hinged plate, and the lightening holes are positioned on two sides of the hinged hole; the U-shaped rib groove is connected between the two hinged plates and is positioned outside the lightening hole.

A mining dump truck carriage with a lifting support comprises a bottom plate and bottom plate rib grooves, wherein the bottom plate rib grooves are connected to the bottom of the bottom plate; the lifting bracket comprises a hinged plate and a U-shaped rib groove; the hinged plate is provided with two lightening holes and a hinged hole, the hinged hole is positioned in the middle of the hinged plate, and the lightening holes are positioned on two sides of the hinged hole; the U-shaped rib groove is connected between the two hinged plates and is positioned outside the lightening hole; two adjacent bottom plate rib grooves respectively penetrate through the two lightening holes, the hinged plate is connected with the contact surface of the bottom plate, and the bottom plate rib grooves are connected with the contact surface of the lightening holes.

Further: the two ends of the hinged plate are arc-shaped.

Further: the U-shaped rib groove is formed by integral bending, and the cross section of the U-shaped rib groove is of a U-shaped structure.

Compared with the prior art, the invention has the technical effects that:

according to the invention, through improving the traditional carriage lifting support, the contact area between the lifting support and the carriage bottom plate is increased, the welding area is increased, and the lifting support and the carriage bottom plate are lapped into an integral structure, so that the high stress concentration of the hinged part of the lifting oil cylinder and the carriage bottom plate in the unloading process of the mining dump truck carriage can be effectively reduced, the fault rate of the part is reduced, the reliability and the service life of the carriage are improved, the attendance rate of the whole truck is ensured, the cost is saved, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic view of a lifting frame according to the present invention;

fig. 2 is a schematic structural diagram of a mining dump truck carriage provided with a lifting support in the invention.

Detailed Description

The technical solution of the present invention will be described in detail with reference to exemplary embodiments. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

Fig. 1 is a schematic structural view of a lifting support 3 according to the present invention.

The lifting bracket 3 includes: two hinged plates 31 and a U-shaped rib groove 32; the hinge plate 31 is provided with two lightening holes 33 and a hinge hole 34, the hinge hole 34 is positioned in the middle of the hinge plate 31, and the hinge hole 34 is used for connecting with a lifting oil cylinder; lightening holes 33 are located on two sides of the hinge hole 34, the lightening holes 33 are used for sealing free circulation of engine tail gas in the bottom plate rib groove 2, and tail gas waste heat is utilized for heating the bottom plate. The U-shaped tendon groove 32 is connected (welded) between the two hinge plates 31, and the U-shaped tendon groove 32 is positioned outside the lightening hole 33.

Two ends of the hinged plate 31 are arc-shaped, so that smooth transition of a welding bead is ensured, and a welding stress concentration point is avoided. The U-shaped rib groove 5 is formed by integral bending, and the cross section of the U-shaped rib groove is of a U-shaped structure.

As shown in fig. 2, the invention is a schematic structural diagram of a carriage of a mining dump truck provided with a lifting support.

The structure of the mining dump truck carriage provided with the lifting support comprises: the device comprises a bottom plate 1, bottom plate rib grooves 2 and lifting supports 3;

the bottom plate rib grooves 2 are welded at the bottom of the bottom plate 1, two adjacent bottom plate rib grooves 2 respectively penetrate through the two lightening holes 33, the hinged plate 31 is welded with the contact surface of the bottom plate 1, and the bottom plate rib grooves 2 are welded with the contact surface of the lightening holes 33. Thereby make and form overall structure through welding each other between bottom plate 1, bottom plate muscle groove 2, the 3 three of support that lifts to improve and lift support position overall structure's intensity and rigidity, effectively reduce stress concentration, avoid the appearance of the early open welding of structure, fracture phenomenon.

The terminology used herein is for the purpose of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. The utility model provides a mining dump truck carriage with lift support, includes bottom plate and bottom plate muscle groove, and bottom plate muscle groove is connected in the bottom of bottom plate, its characterized in that: still including lifting the support, lift the support and include: u-shaped rib grooves and two hinged plates; each hinged plate is provided with two lightening holes and a hinged hole, the hinged hole is positioned in the middle of the hinged plate, and the lightening holes are positioned on two sides of the hinged hole; the U-shaped rib grooves are welded between the two hinged plates, the two U-shaped rib grooves are respectively positioned at the outer sides of the corresponding lightening holes and the outer sides of the bottom plate rib grooves, the U-shaped rib grooves are formed by integral bending, and the cross sections of the U-shaped rib grooves are of U-shaped structures; two adjacent bottom plate rib grooves respectively penetrate through two lightening holes, the lightening holes are used for sealing free circulation of engine tail gas in the bottom plate rib grooves, and the bottom plate is heated by utilizing waste heat of the tail gas; the hinged plate is welded with the contact surface of the bottom plate, and the bottom plate rib grooves are welded with the contact surface of the lightening holes, so that the bottom plate, the bottom plate rib grooves and the lifting support are welded with each other to form an integral structure; two ends of the hinged plate are arc-shaped, and the arc-shaped ends are welded with the contact surface of the bottom plate, so that smooth transition of a welding bead is ensured, and welding stress concentration points are avoided.