CN110722333A - Reinforcement process for inner wall of hopper of mine dump truck - Google Patents
Reinforcement process for inner wall of hopper of mine dump truck Download PDFInfo
- Publication number
- CN110722333A CN110722333A CN201911168200.7A CN201911168200A CN110722333A CN 110722333 A CN110722333 A CN 110722333A CN 201911168200 A CN201911168200 A CN 201911168200A CN 110722333 A CN110722333 A CN 110722333A
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- CN
- China
- Prior art keywords
- wall
- hopper
- welding
- reinforcing
- dump truck
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Loading Or Unloading Of Vehicles (AREA)
Abstract
The invention discloses a mine dumper hopper inner wall reinforcing process for enhancing the strength of a hopper inner wall and slowing down the abrasion of the inner wall by ore sand and stone.
Description
Technical Field
The invention relates to the technical field of mining machinery, in particular to a process for reinforcing the inner wall of a hopper of a mine dump truck.
Background
A mine dumper belongs to an off-highway dumper and is used for transporting coal mines and sand stones in off-highway field sites, such as large-scale strip mines and hydraulic engineering. In civil engineering, a loading, transporting, and unloading line is often constructed in conjunction with an engineering machine such as an excavator, a loader, a belt conveyor, or the like, and the loading, unloading, and transporting work for earthwork, gravel, and bulk materials is performed.
Particularly, in mining and transportation, the dump truck is one of important links of mining production, when the mine dump truck is used for loading and unloading materials such as ore sand, stone and the like, the ore sand and the stone have large self weights and sharp edges and corners, the ore sand and the stone rub and collide the inner wall of the hopper of the mine dump truck to scratch the surface of the inner wall of the hopper, and the hopper of the dump truck is damaged early under the erosion of rainwater and impurities, so that potential safety hazards are caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a mine dumper hopper inner wall reinforcing process for enhancing the strength of the inner wall of a hopper and slowing down the abrasion of the inner wall by ore sand and stone.
The technical scheme of the invention is as follows: a technology for reinforcing the inner wall of a hopper of a mine dump truck is characterized in that a 31Si2CrMoB reinforced steel plate is welded on the inner wall of the hopper, and the technology comprises the following main steps:
⑵ blanking, namely blanking a lower long reinforcing steel plate;
⑵ chamfering the periphery of the reinforcing plate and drilling a welding process hole in the middle;
⑶ assembling and welding;
⑷ keeping the temperature.
The further technical scheme of the invention is that the step ⑶ comprises the following steps:
② preheating the welding position of the reinforced steel plate to 200-260 ℃;
② the base body and the reinforcing plate are welded at the welding process hole, and then the groove position is continuously welded.
The further technical scheme of the invention is that the welding of the step ② is completed at the crater temperature of 200-240 ℃.
The further technical scheme is that in the step ⑷, the welding is carried out for 1-2 hours at 170-200 ℃.
Compared with the prior art, the invention has the following characteristics:
1. the 31Si2CrMoB steel is adopted as the whole inner wall of the car hopper of the reinforcing plate welding machine, and the 31Si2CrMoB steel can resist strong impact wear and has excellent wear resistance under the condition of strong impact wear, so that the service life of the car hopper is greatly prolonged.
2. The invention is adopted in the welding process, especially the welding process hole is made in the welding process, the welding deformation is small, the welding defect of the 31Si2CrMoB steel in the welding process is solved, and the welding quality is improved.
The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a schematic diagram of assembling and welding 31Si2CrMoB reinforced steel plates in the inner wall of a car hopper.
Detailed Description
Example 1
As shown in figure 1, in order to reduce the abrasion of sharp outer corners of ore sand and stone on the inner wall of the hopper when the ore sand and the stone are loaded and unloaded by the hopper of the mine dump truck, a wear-resistant 31Si2CrMoB reinforced steel plate is welded on the inner wall of the hopper, so that the service life of the hopper is greatly prolonged. The invention discloses a welding process for welding a 31Si2CrMoB reinforced steel plate on the inner wall of a hopper of a mine dump truck, which comprises the following main steps of:
⑴ blanking, namely blanking a 31Si2CrMoB reinforced steel plate into a long strip shape;
⑵ As shown in FIG. 1, a welding hole 1 is drilled at the periphery and the middle of the long 31Si2CrMoB reinforced steel plate for preventing the 31Si2CrMoB reinforced steel plate from deforming during welding.
⑶, and during assembly, after the 31Si2CrMoB reinforced steel plates are placed in the length direction consistent with the length direction of the inner walls of the sides of the car hopper, the steel plates are welded along the length direction of the car hopper, so that the self-unloading of the ore sand and the stone is facilitated, and meanwhile, the friction direction is the same as the direction of the strip-shaped 31Si2CrMoB steel, and the abrasion is facilitated to be reduced.
And then preheating the welding position of the reinforcing steel plate and the inner wall of the car hopper to 200-260 ℃, welding the base body and the reinforcing plate at the welding position, and continuously welding the groove positions around the 31Si2CrMoB reinforcing steel plate, wherein the welding is carried out at the welding position within the range of 200-240 ℃, so that the welding position is not deformed.
⑷ heat preservation, after welding, the welding is carried out for 1-2 hours at 170-200 ℃, and then the welding is cooled along with air, thus preventing cold cracking and deformation.
The above-described embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit and scope of the present invention.
Claims (4)
1. A process for reinforcing the inner wall of a hopper of a mine dump truck is characterized by comprising the following steps: the 31Si2CrMoB reinforced steel plate welded on the inner wall of the car hopper comprises the following main steps:
⑴ blanking, namely blanking a lower long reinforcing steel plate;
⑵ chamfering the periphery of the reinforcing plate and drilling a welding process hole in the middle;
⑶ assembling and welding;
⑷ keeping the temperature.
2. The process for reinforcing the inner wall of the hopper of the mining dump truck as claimed in claim 1, wherein the step ⑶ comprises the following steps:
① preheating the welding position of the reinforced steel plate to 200-260 ℃;
② the base body and the reinforcing plate are welded at the welding process hole, and then the groove position is continuously welded.
3. The mine dumper hopper inner wall reinforcing process as claimed in claim 2, characterized in that the welding of the step ② is completed at a crater temperature within the range of 200-240 ℃.
4. The process for reinforcing the inner wall of the hopper of the mine dump truck as claimed in claim 1, wherein in the step ⑷, the welding is carried out at 170-200 ℃ for 1-2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911168200.7A CN110722333A (en) | 2019-11-25 | 2019-11-25 | Reinforcement process for inner wall of hopper of mine dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911168200.7A CN110722333A (en) | 2019-11-25 | 2019-11-25 | Reinforcement process for inner wall of hopper of mine dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110722333A true CN110722333A (en) | 2020-01-24 |
Family
ID=69226132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911168200.7A Pending CN110722333A (en) | 2019-11-25 | 2019-11-25 | Reinforcement process for inner wall of hopper of mine dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110722333A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5417220A (en) * | 1977-05-14 | 1979-02-08 | Shin Meiwa Ind Co Ltd | Floor plate for rear body of vehicle |
| CN202952870U (en) * | 2012-12-14 | 2013-05-29 | 中冶京诚（湘潭）重工设备有限公司 | Anti-abrasion plate of mining dump truck box hopper and mining dump truck box hopper |
| CN104827948A (en) * | 2015-05-26 | 2015-08-12 | 湘电重型装备有限公司 | Electric wheel dumper compartment |
| CN106945948A (en) * | 2017-04-28 | 2017-07-14 | 中国电建集团贵阳勘测设计研究院有限公司 | Anti-collision method and device for discharge bin of coarse crushing workshop |
| CN107054193A (en) * | 2017-05-24 | 2017-08-18 | 内蒙古北方重型汽车股份有限公司 | It is provided with the mine self-discharging vehicle carriage and its installation method of wear-resisting plate structure |
-
2019
- 2019-11-25 CN CN201911168200.7A patent/CN110722333A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5417220A (en) * | 1977-05-14 | 1979-02-08 | Shin Meiwa Ind Co Ltd | Floor plate for rear body of vehicle |
| CN202952870U (en) * | 2012-12-14 | 2013-05-29 | 中冶京诚（湘潭）重工设备有限公司 | Anti-abrasion plate of mining dump truck box hopper and mining dump truck box hopper |
| CN104827948A (en) * | 2015-05-26 | 2015-08-12 | 湘电重型装备有限公司 | Electric wheel dumper compartment |
| CN106945948A (en) * | 2017-04-28 | 2017-07-14 | 中国电建集团贵阳勘测设计研究院有限公司 | Anti-collision method and device for discharge bin of coarse crushing workshop |
| CN107054193A (en) * | 2017-05-24 | 2017-08-18 | 内蒙古北方重型汽车股份有限公司 | It is provided with the mine self-discharging vehicle carriage and its installation method of wear-resisting plate structure |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200124 |
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| RJ01 | Rejection of invention patent application after publication |