CN107628133B - Cargo compartment damping system of mining dump truck - Google Patents
Cargo compartment damping system of mining dump truck Download PDFInfo
- Publication number
- CN107628133B CN107628133B CN201710947037.9A CN201710947037A CN107628133B CN 107628133 B CN107628133 B CN 107628133B CN 201710947037 A CN201710947037 A CN 201710947037A CN 107628133 B CN107628133 B CN 107628133B
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- Prior art keywords
- mounting hole
- frame
- cargo box
- dump truck
- mining dump
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- 238000013016 damping Methods 0.000 title claims abstract description 26
- 238000005065 mining Methods 0.000 title claims abstract description 23
- 230000035939 shock Effects 0.000 claims description 9
- 230000000116 mitigating effect Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a cargo box damping system of a mining dump truck, which comprises a cargo box, a frame, damping devices and a connecting shaft, wherein the damping devices are distributed on the frame and are used for bearing the weight of the cargo box, a first mounting hole is formed in the tail of the frame, a second mounting hole is formed in the lower side of the cargo box corresponding to the first mounting hole, the connecting shaft penetrates through the first mounting hole and the second mounting hole to connect the cargo box with the frame, and the connecting shaft is suspended in the first mounting hole when the cargo box is in a no-load working condition to a full-load working condition. The invention has the function of avoiding the stress concentration at the tail part of the frame caused by the stress of the connecting shaft in full load and the sliding of the cargo box in no load.
Description
Technical Field
The invention relates to a cargo box damping system of a mining dump truck, and belongs to the technical field of mining dump trucks.
Background
The mining dump truck is key equipment in surface mining and large-scale earthwork construction, is used for ore or earthwork transportation, has the characteristics of large load, high working efficiency and the like, and is in a severe working environment and complex working condition. The current mining dump truck has a trend towards oversized and giant development.
The large mining dump truck has large carrying capacity, the carrying capacity is developed to 400 tons, and when the vehicle runs fully, the large load has very large impact inertia and vibration on the cargo box. The goods box and the frame are connected at the tail end by a pin shaft, and the hole shaft is matched with the goods box and the frame by transition and small clearance fit; rubber shock pads are added between the bottom plate of the cargo box and the longitudinal beams of the frame to reduce impact inertia and vibration, but when the mining dump truck is fully loaded, the abrasion and fatigue damage of the pin shafts are found to be serious, and when the mining dump truck is fully loaded, the impact of hundreds of tons of load acts on the frame through the pin shafts, so that the frame bears the action of concentrated load, and the frame is easy to tear, thereby causing serious safety accidents.
Disclosure of Invention
The invention aims to solve the technical problem of providing a mining dump truck cargo box damping system for avoiding stress of a connecting shaft.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a mining dump truck goods railway carriage or compartment shock mitigation system, includes goods railway carriage or compartment, frame, damping device and connecting axle, damping device distributes on the frame, is used for bearing the goods railway carriage or compartment weight, be equipped with first mounting hole on the frame afterbody, goods railway carriage or compartment downside corresponds first mounting hole position is equipped with the second mounting hole, the connecting axle passes first mounting hole with the second mounting hole will goods railway carriage or compartment and frame connection, the goods railway carriage or compartment is from no-load condition to when full load condition the connecting axle suspension is in the first mounting hole.
The diameters of the first mounting holes and the second mounting holes are equal.
When the cargo box is in a full-load working condition, the first mounting hole and the second mounting hole are in a concentric state.
The diameter of the connecting shaft is slightly smaller than the distance between the top end of the first mounting hole and the bottom end of the second mounting hole when the cargo box is in an idle working condition, and the connecting shaft is in small clearance fit with the first mounting hole and the second mounting hole.
The damping device is a rubber damping pad.
A plurality of rows of rubber shock pads are distributed along the length direction of the frame.
The invention has the beneficial effects that: the compression amount of the damping device under different working conditions is reasonably designed, the sizes and positions of the connecting shaft and the mounting hole are matched, the phenomenon that the impact force is transmitted to the frame through the connecting shaft is avoided when the cargo box is fully loaded, the load is transmitted to the frame through the damping device, the stress of the frame is uniform, and the stress concentration is avoided; when the cargo box is empty, the connecting shaft and the mounting hole are automatically adjusted to be in small clearance fit, so that the cargo box can be prevented from sliding on the frame.
Drawings
FIG. 1 is a schematic view of the mounting location of the cargo box and frame of the present invention;
FIG. 2 is a schematic diagram of a cargo box cushioning system layout of the present invention;
FIG. 3 is a schematic view of the pin engagement of the present invention;
FIG. 4 is a schematic view of the pin shaft engagement of the present invention during full load conditions;
fig. 5 is a schematic view of the pin shaft fit under idle conditions of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 3, the cargo box damping system of the mining dump truck comprises a cargo box 1, a frame 2, rubber damping pads 4 and a connecting shaft 3, wherein a plurality of rows of rubber damping pads 4 are distributed from a head to a tail along the length direction of the frame 2, a first mounting hole 2-1 is formed in the tail of the frame 2, a second mounting hole 1-1 is formed in the lower side of the cargo box 1 and corresponds to the position of the first mounting hole 2-1, the connecting shaft 3 penetrates through the first mounting hole 2-1 and the second mounting hole 1-1 to connect the cargo box 1 with the frame 2, the diameters of the first mounting hole 2-1 and the second mounting hole 1-1 are equal, the diameter is set to be D, and the diameter of the connecting shaft 3 is set to be D;
when the cargo box 1 is in a full-load working condition, the first mounting hole 2-1 and the second mounting hole 1-1 are in a concentric state, and the compression quantity a of the cargo and the cargo box to the rubber shock pad 4 during full-load is calculated, so that when the mining dump truck is in the full-load working condition, the second mounting hole 1-1 on the cargo box 1 and the first mounting hole 2-1 on the frame 2 are in the concentric state as shown in fig. 4, and the connecting shaft 3 is free from stress and is in free contact with the first mounting hole 2-1 and the second mounting hole 1-1. At the moment, the phenomenon that impact force is transmitted between the cargo box 1 and the frame 2 through the connecting shaft 3 does not exist, and the load is transmitted to the frame 5 through the damping device 4, so that the stress of the frame 5 is uniform, and the stress concentration is avoided;
in the no-load working condition, the load is only the dead weight of the cargo box 1, and is obviously smaller than the total weight of the cargo box 1 and the cargo in the full-load working condition, so that the compression amount of the rubber shock pad 4 between the cargo box 1 and the frame 2 is reduced, and the compression amount of the cargo box to the rubber shock pad is b. The difference x=a-b between the deformation amounts of the rubber shock pad in the full-load and no-load states of the mining dump truck, and the difference x between the deformation amounts is also the variation amount of the center of the mounting hole in the full-load and no-load states of the mining dump truck. Therefore, when the mining dump truck is in an idle working condition, the distance between the top end of the first mounting hole 2-1 and the bottom end of the second mounting hole 1-1 is D-x, and the diameter D of the connecting shaft 3 is slightly smaller than D-x, so that the cargo box 1 and the connecting shaft 3 of the frame 2 are matched in a small clearance fit under the idle working condition, as shown in fig. 5, the situation that the pressure of the cargo box 1 to the rubber shock pad 4 is reduced when the cargo box 1 is idle, and the sliding of the cargo box 1 on the frame 2 caused by the reduction of friction between the cargo box 1 and the frame 2 is avoided.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (5)
1. The utility model provides a mining dump truck cargo compartment shock mitigation system, its characterized in that includes cargo compartment (1), frame (2), damping device (4) and connecting axle (3), damping device (4) are distributed on frame (2), are used for bearing cargo compartment (1) weight, be equipped with first mounting hole (2-1) on frame (2) afterbody, cargo compartment (1) downside is corresponding first mounting hole (2-1) position is equipped with second mounting hole (1-1), connecting axle (3) pass first mounting hole (2-1) and second mounting hole (1-1) will cargo compartment (1) and frame (2) are connected, cargo compartment (1) is from empty load condition to when fully loaded connecting axle (3) suspend in first operating mode mounting hole (2-1); the diameter of the connecting shaft (3) is slightly smaller than the distance between the top end of the first mounting hole (2-1) and the bottom end of the second mounting hole (1-1) when the cargo box (1) is in an idle working condition, and the connecting shaft (3) is in small clearance fit with the first mounting hole (2-1) and the second mounting hole (1-1).
2. The mining dump truck cargo box damping system according to claim 1, wherein the first mounting hole (2-1) and the second mounting hole (1-1) are equal in diameter.
3. The mining dump truck cargo box damping system according to claim 2, wherein the first mounting hole (2-1) and the second mounting hole (1-1) are in a concentric state when the cargo box (1) is in a full-load working condition.
4. The cargo box damping system of the mining dump truck according to claim 1, wherein the damping device (4) is a rubber damping pad.
5. The cargo box damping system of a mining dump truck according to claim 4, wherein a plurality of rows of the rubber damping pads are distributed along the length direction of the frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710947037.9A CN107628133B (en) | 2017-10-12 | 2017-10-12 | Cargo compartment damping system of mining dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710947037.9A CN107628133B (en) | 2017-10-12 | 2017-10-12 | Cargo compartment damping system of mining dump truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107628133A CN107628133A (en) | 2018-01-26 |
| CN107628133B true CN107628133B (en) | 2024-01-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710947037.9A Active CN107628133B (en) | 2017-10-12 | 2017-10-12 | Cargo compartment damping system of mining dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107628133B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108944613B (en) * | 2018-08-17 | 2023-06-13 | 徐州徐工矿业机械有限公司 | Turnover carriage and dump truck |
Citations (10)
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| JPH07296473A (en) * | 1994-04-26 | 1995-11-10 | Sony Corp | Disk table and disk loading device |
| JPH10226262A (en) * | 1997-02-17 | 1998-08-25 | Shin Meiwa Ind Co Ltd | Dump hinge structure of dump truck |
| KR19980062945A (en) * | 1996-12-30 | 1998-10-07 | 김영귀 | Spare tire carrier of straw |
| AT4040U1 (en) * | 1999-10-01 | 2000-12-27 | Simon Redtenbacher Seel Wwe & | HINGE JOINT FOR GLASSES |
| FR2841883A1 (en) * | 2002-07-08 | 2004-01-09 | Ingeferm | Buffer for lorry unloading platform comprises base support, bumper, damper unit and fixing pin |
| JP2004042870A (en) * | 2002-07-09 | 2004-02-12 | Keizo Nakayama | Shock absorbing wheel |
| CN201605926U (en) * | 2010-01-26 | 2010-10-13 | 中国电子科技集团公司第二十六研究所 | Hinge pair with easily guaranteed concentricity |
| CN201721459U (en) * | 2010-07-14 | 2011-01-26 | 青岛华轩交通装备科技有限公司 | Light rail traction elastic auxiliary hinge mechanism |
| CN203142475U (en) * | 2013-02-01 | 2013-08-21 | 河北工程大学 | Self-unloading type building material transport vehicle |
| CN207360440U (en) * | 2017-10-12 | 2018-05-15 | 徐州徐工矿山机械有限公司 | A kind of quarry tipper loading space shock mitigation system |
-
2017
- 2017-10-12 CN CN201710947037.9A patent/CN107628133B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07296473A (en) * | 1994-04-26 | 1995-11-10 | Sony Corp | Disk table and disk loading device |
| KR19980062945A (en) * | 1996-12-30 | 1998-10-07 | 김영귀 | Spare tire carrier of straw |
| JPH10226262A (en) * | 1997-02-17 | 1998-08-25 | Shin Meiwa Ind Co Ltd | Dump hinge structure of dump truck |
| AT4040U1 (en) * | 1999-10-01 | 2000-12-27 | Simon Redtenbacher Seel Wwe & | HINGE JOINT FOR GLASSES |
| FR2841883A1 (en) * | 2002-07-08 | 2004-01-09 | Ingeferm | Buffer for lorry unloading platform comprises base support, bumper, damper unit and fixing pin |
| JP2004042870A (en) * | 2002-07-09 | 2004-02-12 | Keizo Nakayama | Shock absorbing wheel |
| CN201605926U (en) * | 2010-01-26 | 2010-10-13 | 中国电子科技集团公司第二十六研究所 | Hinge pair with easily guaranteed concentricity |
| CN201721459U (en) * | 2010-07-14 | 2011-01-26 | 青岛华轩交通装备科技有限公司 | Light rail traction elastic auxiliary hinge mechanism |
| CN203142475U (en) * | 2013-02-01 | 2013-08-21 | 河北工程大学 | Self-unloading type building material transport vehicle |
| CN207360440U (en) * | 2017-10-12 | 2018-05-15 | 徐州徐工矿山机械有限公司 | A kind of quarry tipper loading space shock mitigation system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107628133A (en) | 2018-01-26 |
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| CB02 | Change of applicant information |
Address after: 221005 39 Gaoxin Road, Xuzhou economic and Technological Development Zone, Jiangsu Applicant after: XUZHOU XCMG MINING MACHINERY Co.,Ltd. Address before: 221005 39 Gaoxin Road, Xuzhou economic and Technological Development Zone, Jiangsu Applicant before: XUZHOU XCMG MINING MACHINERY Co.,Ltd. |
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