CN106326506B - Bottom-side dump type mine car chassis light-weight method - Google Patents
Bottom-side dump type mine car chassis light-weight method Download PDFInfo
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- CN106326506B CN106326506B CN201510348170.3A CN201510348170A CN106326506B CN 106326506 B CN106326506 B CN 106326506B CN 201510348170 A CN201510348170 A CN 201510348170A CN 106326506 B CN106326506 B CN 106326506B
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Abstract
the invention provides a bottom-side dump mine car chassis light weight method, which effectively reduces the weight of a mine car chassis under the condition of ensuring the structural strength of the chassis by improving the distribution of longitudinal and transverse rib plates of the mine car chassis, the shape and the size of the rib plates and the light weight of chassis mounting parts, thereby reducing the lifting force required by the chassis closure and promoting the continuity of ore dumping production of the bottom-side dump mine car and the bottom-side dump mine car.
Description
Technical Field
The invention relates to the field of bottom-side dump mine car chassis, in particular to a bottom-side dump mine car chassis light-weight method.
background
compared with other mine cars (fixed, side-dumping, bottom-dumping and the like), the bottom side-dumping mine car has the advantages of stable and rapid unloading, less chassis bonding ores, high production efficiency, small impact abrasion of ores to a curved rail and the like, and is gradually and widely popularized and applied in large and medium-sized domestic underground mines in ore transportation production of the underground metal mines3， 4m3The unloading process of the small-size bottom-side unloading type mine car often cannot be continuously finished in the unloading process, and the phenomenon that the mine car gradually decelerates to a position not before stopping after the mine car chassis is opened to unload the mine is easy to happen.
The method of the invention is to analyze the mine car and find the main reason that the mine car has overlarge resistance when leaving the ore unloading area after unloading the ore and the resistance is mainly caused by overlarge reaction force of chassis closing. Therefore, the chassis weight is reduced, so that the advancing resistance of the mine car is reduced, and the mine car can be promoted to complete continuous ore unloading.
Disclosure of Invention
Aiming at the problems of excessive quantity of chassis rib plates, unreasonable distribution, overlarge size, overweight chassis parts and the like, the chassis weight is reduced to reduce the advancing resistance of the mine car and promote the mine car to complete continuous ore unloading, and the invention provides the bottom-side-dump mine car chassis lightweight method which comprises the following specific steps:
1) the method comprises the steps that three-dimensional software is adopted to establish a structural model of a chassis of the light-weight bottom-side dump mine car, finite element analysis is carried out, the analysis result shows that the stress distribution of the chassis is disordered, the stress of a support connection point is excessively concentrated, the safety coefficient of the weakest part of the chassis is lower, the trend of reinforcing rib plates at the bottom of the chassis is redistributed, the reinforcing rib plates are distributed according to the stress distribution concentration point, namely, the original regular transverse rib plates, longitudinal long rib plates and diagonal support ribs below the bottom plate are changed into improved transverse long rib plates which are transversely and obliquely distributed and improved longitudinal long rib plates which are disconnected from the bottom plate, and redundant short rib plates are reduced according to the structure;
2) Drilling holes in the improved longitudinal long rib plate and the improved transverse long rib plate to reduce weight, changing the lower edge of the improved transverse oblique long rib plate into an oblique edge, and installing a taper shape at one end of the clamping plate on the hinge point and the support unloading wheel, thereby further reducing the weight of the chassis;
3) the structure installation form of the unloading wheel which supports the chassis and is contacted with the unloading curved rail is changed into a concave spoke type structure from a thick structure and a pair of rolling bearings, and is changed into a sliding bearing installation with lighter weight, so that the weight of the chassis is reduced again.
the invention further improves that the method for lightening the chassis of the bottom-side dump mine car is suitable for the bottom-side dump mine car with the ore unloading being opened right behind and the bottom-side dump mine car with the ore unloading being opened on the side.
The invention provides a bottom-side dump mine car chassis light weight method, which effectively reduces the weight of a mine car chassis under the condition of ensuring the structural strength of the chassis by improving the distribution of longitudinal and transverse rib plates of the mine car chassis, the shape and the size of the rib plates and the light weight of chassis mounting parts, thereby reducing the lifting force required by the chassis closure and promoting the continuity of ore dumping production of the bottom-side dump mine car and the bottom-side dump mine car.
Drawings
FIG. 1 is a distribution diagram of the bottom reinforcing rib plate of the improved chassis of the invention:
FIG. 2 is a simplified diagram of the shape of the reinforcing rib plate at the bottom of the chassis after the improvement of the invention:
FIG. 3 is a distribution diagram of reinforcing plates at the bottom of the original chassis of the invention:
FIG. 4 is a simplified diagram of the shape of the reinforcing rib plate at the bottom of the original chassis of the invention:
FIG. 5 is a schematic view of the improved chassis mounting components of the present invention;
FIG. 6 is a schematic view of the original chassis mounting components of the present invention;
FIG. 7 is a schematic view of the safety of the improved front chassis structure of the present invention;
FIG. 8 is a schematic view of the improved safety of the rear chassis structure of the present invention;
FIG. 9 is a schematic view of the maximum deformation of the improved front chassis of the present invention;
FIG. 10 is a schematic view of the improved chassis of the present invention in its most deformed state;
FIG. 11 is a schematic view showing the distribution of reinforcing plates in the chassis of the bottom-dump car according to the present invention;
Illustration of the drawings:
1. a base plate; 2. A transverse rib plate; 3. Mounting a clamping plate on the unloading wheel;
4. longitudinal long rib plates; 5. A wheel axle mounting plate; 6. A hinge point;
7. The improved longitudinal long rib plate; 8. The improved transverse inclined rib plate.
Detailed Description
The invention is described in detail below with reference to the following figures and examples:
the invention provides a bottom-side unloading type mine car chassis light-weight method, which aims at the problems of excessive number of chassis rib plates, unreasonable distribution, overlarge size, overweight chassis parts and the like, and reduces the advancing resistance of a mine car by reducing the weight of a chassis so as to ensure that the mine car can complete continuous ore unloading.
as shown in FIG. 7, a chassis structure model is established by adopting three-dimensional software, finite element analysis is carried out, and the analysis result shows that the stress distribution of the chassis is disturbed, the stress of the support connection point is excessively concentrated, and the safety coefficient of the weakest part of the chassis is lower. The trend of the reinforcing rib plates at the bottom of the chassis is redistributed, namely as shown in figures 1 and 2, the reinforcing rib plate distribution is carried out according to stress distribution concentration points, namely, the transverse rib plates 2, the longitudinal long rib plates 4 and the diagonal bracing ribs which are regularly vertically, horizontally and vertically distributed in figures 3 and 4 are changed into the improved transverse long rib plates 8 and the improved longitudinal long rib plates 7 which are distributed in a disconnected mode in figures 1 and 2, and the redundant short rib plates are reduced.
As shown in figures 1 and 2, the improved longitudinal long rib plate 7 and the improved transverse long rib plate 8 are drilled to reduce weight, in addition, the lower side of the improved transverse oblique long rib plate 8 is changed into an oblique edge, and the hinge point 6 and one end of the unloading wheel mounting clamping plate 3 at the supporting position are in a tapered shape, so that the weight of the chassis is further reduced.
As shown in fig. 5 and 6, the structure installation form of the unloading wheel which supports the chassis and is contacted with the unloading curved rail is changed into a concave spoke type structure from a thick and heavy structure and a pair of rolling bearings, and is changed into a sliding bearing installation with light weight, so that the weight of the chassis is reduced again.
as shown in figure 8, a structural model of the chassis after the lightweight improved design is reestablished by adopting three-dimensional software, finite element analysis is carried out, the analysis result shows that the stress of the chassis after the lightweight improved design is more uniform, the stress concentration phenomenon of the connecting points is better improved, and as shown in figure 9 and figure 10, the comparison shows that the safety coefficient of the weakest part of the chassis after the lightweight improved design is increased from 1.5 to 1.9, the maximum deformation of the chassis is reduced from 3.93e-0.04 to 2.915e-0.04, and finally the maximum displacement 9.202 of the chassis after the lightweight improved design is reduced to 7.247e-0.04, so that the structural strength of the chassis is not weakened, but the strength and the safety of the chassis are improved.
According to the light weight design of the bottom-dump mine car chassis with the ore unloading opened at the right back of the length direction of the chassis as shown in FIG. 11, the bottom-dump mine car hinge point and the bottom-dump mine car unloading wheel mounting clamping plate are respectively positioned at two ends of the length direction of the mine car chassis, the ore unloading is opened according to the side edges, and the chassis bottom reinforcing rib plates are distributed according to the arrangement scheme as shown in FIG. 11 and are composed of bottom-dump mine car longitudinal rib plates, unloading mine car longitudinal inclined rib plates and bottom-dump mine car transverse rib plates which are distributed in a V shape.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, but any modifications or equivalent variations made according to the technical spirit of the present invention are within the scope of the present invention as claimed.
Claims (2)
1. A bottom-side dump type mine car chassis light-weight method comprises the following specific steps, and is characterized in that:
1) the method comprises the steps that three-dimensional software is adopted to establish a structural model of a chassis of the light-weight bottom-side dump mine car, finite element analysis is carried out, analysis results show that the stress distribution of the chassis is disordered, the stress of a support connection point is excessively concentrated, the safety coefficient of the weakest part of the chassis is low, the trend of reinforcing rib plates at the bottom of the chassis is redistributed, the reinforcing rib plates are distributed according to the stress distribution concentration point, namely, a transverse rib plate (2), a longitudinal long rib plate (4) and diagonal bracing ribs which are originally and regularly vertically and horizontally and vertically distributed below a bottom plate (1) are changed into an improved transverse long rib plate (8) which is transversely and obliquely distributed and an improved longitudinal long rib plate (7) which is disconnected and distributed, and;
2) Drilling is carried out on the improved longitudinal long rib plate (7) and the improved transverse long rib plate (8) to reduce weight, in addition, the lower edge of the improved transverse oblique long rib plate (8) is changed into an oblique edge, and the hinge point (6) and the support part unloading wheel are provided with a taper shape at one end of the clamping plate (3), so that the weight of the chassis is further reduced;
3) the structure installation form of the unloading wheel which supports the chassis and is contacted with the unloading curved rail is changed into a concave spoke type structure from a thick structure and a pair of rolling bearings, and is changed into a sliding bearing installation with lighter weight, so that the weight of the chassis is reduced again.
2. the bottom-side dump car chassis weight reduction method according to claim 1, characterized in that: the bottom-side dump mine car chassis light weight method is suitable for bottom-side dump mine cars with open ore dumping right behind and bottom-side dump mine cars with open ore dumping on the side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510348170.3A CN106326506B (en) | 2015-06-23 | 2015-06-23 | Bottom-side dump type mine car chassis light-weight method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510348170.3A CN106326506B (en) | 2015-06-23 | 2015-06-23 | Bottom-side dump type mine car chassis light-weight method |
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| Publication Number | Publication Date |
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| CN106326506A CN106326506A (en) | 2017-01-11 |
| CN106326506B true CN106326506B (en) | 2019-12-17 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837754A (en) * | 2010-05-25 | 2010-09-22 | 三一重机有限公司 | Mining dump truck carriage floor reinforcing rib structure |
| CN102945307B (en) * | 2012-11-27 | 2015-04-29 | 北京汽车研究总院有限公司 | Automobile chassis key structural member structure optimization design method |
| CN103279614B (en) * | 2013-05-31 | 2015-10-28 | 天津大学 | A kind of machine tool structure large rib plate layout and method for designing |
| CN103612688B (en) * | 2013-11-28 | 2015-12-30 | 宁波跃进汽车前桥有限公司 | Based on the automobile bottom diskware light weight method of many-body dynamics and topological optimization technology |
| CN104376177A (en) * | 2014-11-24 | 2015-02-25 | 柳州金茂机械有限公司 | Quantitative method based on engineering machinery structural design |
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Address after: 210039 new building, Zhonghua Gate, Yuhuatai District, Jiangsu, Nanjing Patentee after: Nanjing Baodi Meishan Industrial City Development Co.,Ltd. Patentee after: Shanghai Meishan Co., Ltd., Baosteel Group Patentee after: SHANGHAI MEISHAN IRON & STEEL Co.,Ltd. Address before: 210039 new building, Zhonghua Gate, Yuhuatai District, Jiangsu, Nanjing Patentee before: NANJING MEISHAN METALLURGY DEVELOPMENT Co.,Ltd. Patentee before: Shanghai Meishan Co., Ltd., Baosteel Group Patentee before: SHANGHAI MEISHAN IRON & STEEL Co.,Ltd. |
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Effective date of registration: 20211021 Address after: 210039 new building, Zhonghua Gate, Yuhuatai District, Jiangsu, Nanjing Patentee after: Nanjing Baodi Meishan Industrial City Development Co.,Ltd. Address before: 210039 new building, Zhonghua Gate, Yuhuatai District, Jiangsu, Nanjing Patentee before: Nanjing Baodi Meishan Industrial City Development Co.,Ltd. Patentee before: Shanghai Meishan Co., Ltd., Baosteel Group Patentee before: SHANGHAI MEISHAN IRON & STEEL Co.,Ltd. |