CN112249160A - Dumper frame and dumper - Google Patents
Dumper frame and dumper Download PDFInfo
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- CN112249160A CN112249160A CN202011174847.3A CN202011174847A CN112249160A CN 112249160 A CN112249160 A CN 112249160A CN 202011174847 A CN202011174847 A CN 202011174847A CN 112249160 A CN112249160 A CN 112249160A
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- 238000007789 sealing Methods 0.000 claims description 34
- 238000005065 mining Methods 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 3
- 238000000429 assembly Methods 0.000 claims 3
- 239000000725 suspension Substances 0.000 description 21
- 230000007306 turnover Effects 0.000 description 10
- 238000003466 welding Methods 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 241001595898 Monophlebidae Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
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Abstract
一种自卸车车架，包括对称设置的右纵梁和左纵梁，从前到后依次连接在左纵梁和右纵梁之间的保险杠组件、前下龙门梁、第二横梁、第三横梁、中后横梁组件和尾横梁；左纵梁和右纵梁的箱型截面尺寸从前往后保持不变；第二横梁、第三横梁、中后横梁组件、尾横梁均至少一面与左纵梁和右纵梁搭接。本发明的自卸车车架极大地提升了扭转刚度和强度，能抵抗矿山复杂多变的恶劣工况，设计寿命长。本发明还涉及一种具有该自卸车车架的自卸车。
A dump truck frame, comprising symmetrically arranged right longitudinal beam and left longitudinal beam, a bumper assembly, a front lower gantry beam, a second transverse beam, a third Cross member, middle and rear cross member components and tail cross member; the box section dimensions of the left and right longitudinal members remain unchanged from front to rear; the second cross member, third cross member, middle and rear cross member components, and tail cross member are all at least one side with the left longitudinal member. The beam and the right longitudinal beam are overlapped. The dump truck frame of the invention greatly improves the torsional rigidity and strength, can resist the complex and changeable harsh working conditions of the mine, and has a long design life. The invention also relates to a dump truck with the dump truck frame.
Description
Technical Field
The invention relates to the technical field of dumper, in particular to a dumper frame and a dumper with the dumper frame.
Background
The mining dump truck is a special vehicle for ore or earthwork transportation in open-pit mining and large-scale earthwork construction, and has the characteristics of large load, high working efficiency and the like. At present, the mining dump truck develops towards large-scale and giant-scale. The frame of the mining dump truck belongs to an ultra-large structural member, is a base body for bearing, supporting and mounting the whole truck, is the most important structural component of the mining dump truck, and is accompanied with the whole life cycle of the dump truck.
When the mining dump truck is used, the frame bears the effects of gravity, impact load, torsional load, bending load and alternating load at the same time, so that the frame is required to have good strength and reliability. The existing mining dump truck frame has the following defects:
1. the existing frame longitudinal beam generally adopts a groove-shaped cross section, and the transverse beam and the longitudinal beam are riveted or welded, so that the overall torsional rigidity and strength of the frame are low, and the service life is short.
2. Although an integral box-shaped section welding frame is adopted, the front suspension of the frame adopts a (Macpherson type) independent suspension, the stress working condition of an oscillating arm and a pull rod of the independent suspension is severe, the failure phenomena such as the breakage of a front suspension structural member and the like easily occur, and the frame is not suitable for a complicated mine road. And an independent suspension is adopted, so that the structure is complex, the cost is high, and the maintenance is inconvenient.
3. In order to arrange the lower swing arm of the Macpherson type suspension, the frame longitudinal beam is designed to be low in front and high in back, the longitudinal beam is not connected from front to back, the processing difficulty is high, the deformation is large, and the torsional rigidity of the frame is not high.
Disclosure of Invention
In view of the above, the invention provides a dumper frame, which greatly improves the torsional rigidity and strength, can resist the complex and variable severe working conditions of mines and has long design life.
The dumper frame provided by the embodiment of the invention comprises a right longitudinal beam and a left longitudinal beam which are symmetrically arranged, and a bumper component, a front lower gantry beam, a second cross beam, a third cross beam, a middle and rear cross beam component and a tail cross beam which are sequentially connected between the left longitudinal beam and the right longitudinal beam from front to back; the sizes of box-shaped cross sections of the left longitudinal beam and the right longitudinal beam are kept unchanged from front to back; and at least one surface of each of the second cross beam, the third cross beam, the middle rear cross beam assembly and the tail cross beam is lapped with the left longitudinal beam and the right longitudinal beam.
Furthermore, the left longitudinal beam comprises a first upper cover plate and a first lower cover plate which are oppositely arranged, and a first side plate and a second side plate which are connected between the first upper cover plate and the first lower cover plate, the right longitudinal beam comprises a second upper cover plate and a second lower cover plate which are oppositely arranged, and a third side plate and a fourth side plate which are connected between the second upper cover plate and the second lower cover plate, and the surfaces of the second side plate and the third side plate are oppositely arranged; the first upper cover plate is provided with a first upper surface, the first lower cover plate is provided with a first lower surface, and the first upper surface is parallel to the first lower surface; the second upper cover plate is provided with a second upper surface, the second lower cover plate is provided with a second lower surface, and the second upper surface is parallel to the second lower surface; the first upper surface and the second upper surface are positioned on the same plane, and the first lower surface and the second lower surface are positioned on the same plane.
Furthermore, the bumper assembly is welded at the front ends of the left longitudinal beam and the right longitudinal beam, the upper surface of the bumper assembly is flush with the first upper surface and the second upper surface, and the lower surface of the bumper assembly is flush with the first lower surface and the second lower surface.
Furthermore, the bumper component is provided with a hole used as an air inlet duct of the engine radiator; the upper surface of the safety rod component is also provided with a left cab turnover seat and a right cab turnover seat.
Furthermore, a front axle left longitudinal push rod support is arranged on the left longitudinal beam, and a front axle right longitudinal push rod support is arranged on the right longitudinal beam; the front axle left longitudinal push rod support and the front axle right longitudinal push rod support are positioned between the bumper component and the front lower gantry beam and are symmetrically arranged; the front axle left longitudinal push rod support is welded and fixed on a first side plate and a first lower cover plate of the left longitudinal beam, and the front axle right longitudinal push rod support is welded and fixed on a fourth side plate and a second lower cover plate of the right longitudinal beam.
Furthermore, one end of the front lower gantry beam is welded on a first lower cover plate of the left longitudinal beam, and the other end of the front lower gantry beam is welded on a second lower cover plate of the right longitudinal beam; a left front hydro-pneumatic spring upper support is welded on the first side plate of the left longitudinal beam, a right front hydro-pneumatic spring upper support is welded on the fourth side plate of the right longitudinal beam, and the left front hydro-pneumatic spring upper support, the right front hydro-pneumatic spring upper support and the front lower gantry beam are located at the same longitudinal position of the dumper frame.
Furthermore, the left longitudinal beam and the right longitudinal beam are respectively provided with a lower lifting oil cylinder mounting seat, the two lower lifting oil cylinder mounting seats are positioned between the front lower gantry beam and the second cross beam and are close to the second cross beam, one lower lifting oil cylinder mounting seat is welded on the first upper surface and the first side surface of the left longitudinal beam, the other lower lifting oil cylinder mounting seat is welded on the second upper surface and the fourth side surface of the right longitudinal beam, and the two lower lifting oil cylinder mounting seats are symmetrically arranged.
Further, the second cross beam has a first upper plate, a first lower plate, a first front side plate and a first rear side plate; two ends of the first upper plate are respectively lapped with a first upper cover plate of the left longitudinal beam and a second upper cover plate of the right longitudinal beam, and two ends of the first lower plate, the first front side plate and the first rear side plate are respectively welded with a second side plate of the left longitudinal beam and a third side plate of the right longitudinal beam; the third cross beam is provided with a second upper plate, a second lower plate, a second front side plate and a second rear side plate, two ends of the second lower plate are respectively lapped with the first lower cover plate of the left longitudinal beam and the second lower cover plate of the right longitudinal beam, and two ends of the second upper plate, the second front side plate and the second rear side plate are respectively welded with the second side plate of the left longitudinal beam and the third side plate of the right longitudinal beam.
Furthermore, the middle-rear cross beam assembly is provided with a third upper plate, a third lower plate, a front sealing plate and a rear sealing plate, two ends of the third upper plate are respectively lapped with the first upper cover plate of the left longitudinal beam and the second upper cover plate of the right longitudinal beam, two ends of the third lower plate are respectively lapped with the first lower cover plate of the left longitudinal beam and the second lower cover plate of the right longitudinal beam, and two ends of the front sealing plate and the rear sealing plate are respectively lapped with the second side plate of the left longitudinal beam and the third side plate of the right longitudinal beam.
Furthermore, a middle rear axle longitudinal push rod seat is welded on a third lower plate of the middle rear cross beam assembly.
Furthermore, two middle rear axle transverse push rod supports are further arranged on a third side plate of the right longitudinal beam, one of the middle rear axle transverse push rod supports is located between the third cross beam and the middle rear cross beam assembly, and the other middle rear axle transverse push rod support is located between the middle rear cross beam assembly and the tail cross beam.
Furthermore, two left rear hydro-pneumatic spring upper supports are further arranged on the first side plate of the left longitudinal beam, one of the left rear hydro-pneumatic spring upper supports is located between the third cross beam and the middle rear cross beam assembly, and the other left rear hydro-pneumatic spring upper support is located between the middle rear cross beam assembly and the tail cross beam; and the fourth side plate of the right longitudinal beam is also provided with two right rear hydro-pneumatic spring upper supports, one of the right rear hydro-pneumatic spring upper supports is positioned between the third cross beam and the middle rear cross beam assembly, and the other right rear hydro-pneumatic spring upper support is positioned between the middle rear cross beam assembly and the tail cross beam.
Further, the tail beam comprises an upper sealing plate, a lower sealing plate and a front side sealing plate; the side parts of the upper sealing plate and the lower sealing plate, which are far away from the middle-rear cross beam assembly, are in arc transition and are connected together, two ends of the upper sealing plate are respectively lapped with a first upper cover plate of the left longitudinal beam and a second upper cover plate of the right longitudinal beam, and two ends of the lower sealing plate are respectively lapped with a first lower cover plate of the left longitudinal beam and a second lower cover plate of the right longitudinal beam; and two ends of the front side sealing plate are bent forwards and are respectively lapped with the second side plate of the left longitudinal beam and the third side plate of the right longitudinal beam.
Furthermore, the last shrouding of tail crossbeam is equipped with two packing box turn-ups seat after, and the welding of packing box turn-ups seat is turned over at last shrouding and part downward shrouding direction extension and with lower shrouding welding after.
The invention also provides a dump truck which comprises the dump truck frame, and the dump truck is a mining dump truck.
In conclusion, the frame of the dump truck comprises a right longitudinal beam and a left longitudinal beam which are symmetrically arranged, and a bumper component, a front lower gantry beam, a second cross beam, a third cross beam, a middle-rear cross beam component and a tail cross beam which are sequentially connected between the left longitudinal beam and the right longitudinal beam from front to back; the sizes of box-shaped cross sections of the left longitudinal beam and the right longitudinal beam are kept unchanged from front to back; and at least one surface of each of the second cross beam, the third cross beam, the middle rear cross beam assembly and the tail cross beam is lapped with the left longitudinal beam and the right longitudinal beam. The dumper frame adopts an integral box-shaped section welding frame, the main body of the dumper frame is composed of six cross beams and two longitudinal beams, the six cross beams and the longitudinal beams are mutually interwoven and overlapped to form an integral frame structure, the torsional rigidity and the strength are greatly improved, the complex and changeable severe working conditions of a mine can be resisted, and the design life is long. And secondly, the sizes of the box-shaped cross sections of the left longitudinal beam and the right longitudinal beam are kept unchanged from front to back and are kept coherent, the upper planes and the lower planes of the left longitudinal beam and the right longitudinal beam are parallel to each other, the heights of the left longitudinal beam and the right longitudinal beam are kept unchanged, and the left longitudinal beam and the right longitudinal beam are easy to machine and form.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a dumper frame according to a preferred embodiment of the invention from a first viewing angle.
Fig. 2 is a schematic structural diagram of the dumper frame according to the preferred embodiment of the present invention from a second viewing angle.
Fig. 3 is a schematic structural diagram of the dumper frame according to the preferred embodiment of the present invention from a third viewing angle.
Fig. 4 is a schematic structural diagram of the dumper frame according to the preferred embodiment of the present invention at a fourth viewing angle.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined objects, the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1 to 4, the dumper frame of the present invention can be used as a frame of a mining dumper with a load of hundred tons, but is not limited thereto. The dumper frame is of a six-transverse two-longitudinal structural form, and specifically comprises a right longitudinal beam 18 and a left longitudinal beam 4 which are symmetrically arranged, and a bumper component 1, a front lower gantry beam 6, a second transverse beam 8, a third transverse beam 9, a middle and rear transverse beam component 12 and a tail transverse beam 13 which are sequentially connected between the left longitudinal beam 18 and the right longitudinal beam 4 from front to back. And at least one surface of the second cross beam 8, the third cross beam 9, the middle rear cross beam assembly 12 and the tail cross beam 13 is lapped with the left longitudinal beam 18 and the right longitudinal beam 4.
Specifically, the left longitudinal beam 18 includes a first upper cover plate 181 and a first lower cover plate 182 which are oppositely disposed, and a first side plate 183 and a second side plate 184 which are connected between the first upper cover plate 181 and the first lower cover plate 182; the right side member 4 includes a second upper cover plate 41 and a second lower cover plate 42 that are disposed opposite to each other, and a third side plate 43 and a fourth side plate 44 that are connected between the second upper cover plate 41 and the second lower cover plate 42; the second side plate 184 is disposed opposite the third side plate 43 in a face-to-face relationship. Wherein the left longitudinal beam 18 has a first upper surface 18a, a first lower surface 18b, a first outer side surface 18c and a first inner side surface 18 d; the first upper surface 18a is a surface of the first upper cover 181 and is also an upper plane of the left side member 18, the first lower surface 18b is a surface of the first lower cover 182 and is also a lower plane of the left side member 18, the first outer side surface 18c is a surface of the first side plate 183 and is also an outer side surface of the left side member 18, and the first inner side surface 18d is a surface of the second side plate 184 and is also an inner side surface of the left side member 18. The right longitudinal beam 4 has a second upper surface 4a, a second lower surface 4b, a second inner side surface 4c and a second outer side surface 4 d; the second upper surface 4a is a surface of the second upper cover 41 and is also an upper plane of the right side member 4, the second lower surface 4b is a surface of the second lower cover 42 and is also a lower plane of the right side member 4, the second inner side surface 4c is a surface of the third side plate 43 and is also an inner side surface of the right side member 4, and the second outer side surface 4d is a surface of the fourth side plate 44 and is also an outer side surface of the right side member 4.
In this embodiment, the box-shaped cross-sectional dimensions of the left longitudinal beam 18 and the right longitudinal beam 4 are kept constant from front to back and are kept continuous, that is, the first upper surface 18a of the left longitudinal beam 18 is parallel to the first lower surface 18b, the second upper surface 4a of the right longitudinal beam 4 is parallel to the second lower surface 4b, the first upper surface 18a and the second upper surface 4a are located on the same plane, the first lower surface 18b and the second lower surface 4b are located on the same plane, and the left longitudinal beam 18 and the right longitudinal beam 4 maintain constant heights from front to back, so that the processing and the forming are easy.
The bumper assembly 1 is welded at the front ends of the left longitudinal beam 18 and the right longitudinal beam 4, the upper surface (not marked in the figure) of the bumper assembly 1 is flush with the first upper surface 18a and the second upper surface 4a, and the lower surface (not marked in the figure) of the bumper assembly 1 is flush with the first lower surface 18b and the second lower surface 4 b. The middle of the bumper component 1 is provided with a hole 1a, and the hole 1a is used as an air inlet duct of an engine radiator, so that the air inlet wind resistance of the radiator is reduced.
Furthermore, the upper surface of the safety rod assembly 1 is also provided with a left cab turnover seat 20 and a right cab turnover seat 2, the left cab turnover seat 20 and the right cab turnover seat 2 are welded on the upper surface of the safety rod assembly 1 for example, a front turnover hinge point can be provided for a turnover cab, the left cab turnover seat 20 corresponds to the front side of the left longitudinal beam 18, and the right cab turnover seat 2 corresponds to the front side of the right longitudinal beam 4.
Furthermore, a front axle left longitudinal push rod support 19 is arranged on the left longitudinal beam 18, and a front axle right longitudinal push rod support 3 is arranged on the right longitudinal beam 4. The front axle left longitudinal push rod support 19 and the front axle right longitudinal push rod support 3 are located between the bumper component 1 and the front lower gantry beam 6, the front axle left longitudinal push rod support 19 and the front axle right longitudinal push rod support 3 are symmetrically arranged, the front axle left longitudinal push rod support 19 is welded and fixed on a first side plate 183 and a first lower cover plate 182 of the left longitudinal beam 18, and the front axle right longitudinal push rod support 3 is welded and fixed on a fourth side plate 44 and a second lower cover plate 42 of the right longitudinal beam 4. The front axle left longitudinal push rod support 19 and the front axle right longitudinal push rod support 3 can be used as installation bases of 4 longitudinal push rods of the front axle to control the front-rear displacement of the front axle.
The front lower gantry beam 6 is welded at the lower side of the front end of the dumper frame and is positioned between the left longitudinal beam 18 and the right longitudinal beam 4, namely one end of the front lower gantry beam 6 is welded at the first lower cover plate 184 of the left longitudinal beam 18, the other end of the front lower gantry beam 6 is welded at the second lower cover plate 44 of the right longitudinal beam 4, and the front lower gantry beam 6 is approximately U-shaped. The front lower gantry beam 6 can be used as a transverse push rod support of a front axle to limit the left and right displacement of the front axle, and the front lower gantry beam 6 is simultaneously connected with the left longitudinal beam 18 and the right longitudinal beam 4, so that the torsional strength of the dumper frame can be enhanced.
The welding has left front hydro-pneumatic spring upper bracket 17 on the first curb plate 181 of left longeron 18, and the welding has right front hydro-pneumatic spring upper bracket 5 on the fourth curb plate 44 of right longeron 4, and left front hydro-pneumatic spring upper bracket 17, right front hydro-pneumatic spring upper bracket 5 and preceding longmen roof beam 6 are located the same longitudinal position of tipper frame down, and in this embodiment, left front hydro-pneumatic spring upper bracket 17, right front hydro-pneumatic spring upper bracket 5 all link together with preceding longmen roof beam 6 down. The left front hydro-pneumatic spring upper support 17 and the right front hydro-pneumatic spring upper support 5 are used as upper mounting points of the front hydro-pneumatic spring.
The left longitudinal beam 18 and the right longitudinal beam 4 are respectively provided with a lower lifting cylinder mounting base 7, the two lower lifting cylinder mounting bases 7 are located between the front lower gantry beam 6 and the second cross beam 8 and are close to the second cross beam 8, one lower lifting cylinder mounting base 7 is welded on the first upper surface 181 and the first side surface 183 of the left longitudinal beam 18, the other lower lifting cylinder mounting base 7 is welded on the second upper surface 41 and the fourth side surface 44 of the right longitudinal beam 4, and the two lower lifting cylinder mounting bases 7 are symmetrically arranged. The strength of the lower mounting seat 7 of the lifting oil cylinder can be improved by welding the lower mounting seat 7 of the lifting oil cylinder on two surfaces of the cross beam.
The second cross member 8 has a first upper plate 81, a first lower plate 82, a first front side plate 83 and a first rear side plate 84. Two ends of the first upper plate 81 of the second cross beam 8 are respectively overlapped with the first upper cover plate 181 of the left longitudinal beam 18 and the second upper cover plate 41 of the right longitudinal beam 4, namely two ends of the first upper plate 81 of the second cross beam 8 are respectively overlapped with the first upper cover plate 181 of the left longitudinal beam 18 and the second upper cover plate 41 of the right longitudinal beam 4 to form connection; both ends of the first lower plate 82, the first front side plate 83 and the first rear side plate 84 of the second cross member 8 are directly welded to the second side plate 184 of the left side member 18 and the third side plate 43 of the right side member 4, respectively.
The third cross member 9 has a second upper plate 91, a second lower plate 92, a second front side plate 93, and a second rear side plate 94. Two ends of the second lower plate 92 of the third cross beam 9 are respectively overlapped with the first lower cover plate 182 of the left longitudinal beam 18 and the second lower cover plate 42 of the right longitudinal beam 4, that is, two ends of the second lower plate 92 of the third cross beam 9 are respectively overlapped with the first lower cover plate 182 of the left longitudinal beam 18 and the second lower cover plate 42 of the right longitudinal beam 4 to form connection; both ends of the second upper plate 91, the second front side plate 93 and the second rear side plate 94 of the third cross member 9 are directly welded to the second side plate 184 of the left side member 18 and the third side plate 43 of the right side member 4, respectively.
The middle-rear cross beam assembly 12 is provided with a third upper plate 121, a third lower plate 122, a front sealing plate 123 and a rear sealing plate 124, wherein two ends of the third upper plate 12 are respectively overlapped with the first upper cover plate 181 of the left longitudinal beam 18 and the second upper cover plate 41 of the right longitudinal beam 4, two ends of the third lower plate 122 are respectively overlapped with the first lower cover plate 182 of the left longitudinal beam 18 and the second lower cover plate 42 of the right longitudinal beam 4, two ends of the front sealing plate 123 and the rear sealing plate 124 are respectively overlapped with the second side plate 184 of the left longitudinal beam 18 and the third side plate 43 of the right longitudinal beam 4, two ends of the front sealing plate 123 are bent forwards to be overlapped with the second side plate 184 and the third side plate 43, and two ends of the rear sealing plate 124 are bent backwards to be overlapped with the second side plate 184 and the.
Further, a middle-rear axle longitudinal push rod seat 16 is welded below the middle-rear cross beam assembly 12 (i.e., on the surface of the third lower plate 122) and serves as a mounting seat for 8 longitudinal push rods of the middle-rear axle with two axles, and the front-rear displacement of the middle-rear axle is controlled.
In other embodiments, the upper or lower longitudinal push rods parallel to each other at the left and right can be made into inclined push rods with a certain angle to replace the transverse push rods, and the left and right displacement of the bridge can also be limited.
Further, two middle-rear axle transverse push rod supports 10 are further arranged on a third side plate 43 of the right longitudinal beam 4, one of the middle-rear axle transverse push rod supports 10 is located between the third cross beam 9 and the middle-rear cross beam assembly 12 and close to one side of the middle-rear cross beam assembly 12, the other middle-rear axle transverse push rod support 10 is located between the middle-rear cross beam assembly 12 and the tail cross beam 13, and the two rear axle transverse push rod supports 10 are used as transverse push rod supports for assembling the middle and rear axles of the double axles to control the left and right displacement of the middle and rear axles.
In this embodiment, the middle rear axle push rod support 10 between the third cross member 9 and the middle rear cross member assembly 12 is welded directly to the second inner side surface 4c of the third side plate 43 through a bottom plate (not labeled).
Furthermore, two left rear hydro-pneumatic spring upper supports 15 are further arranged on the first side plate 183 of the left longitudinal beam 18, one left rear hydro-pneumatic spring upper support 15 is located between the third cross beam 9 and the middle rear cross beam assembly 12 and close to one side of the middle rear cross beam assembly 12, and the other left rear hydro-pneumatic spring upper support 15 is located between the middle rear cross beam assembly 12 and the rear cross beam 13; two right rear hydro-pneumatic spring upper supports 11 are further arranged on a fourth side plate 44 of the right longitudinal beam 4, one right rear hydro-pneumatic spring upper support 11 is located between the third cross beam 9 and the middle rear cross beam assembly 12 and close to one side of the middle rear cross beam assembly 12, and the other right rear hydro-pneumatic spring upper support 11 is located between the middle rear cross beam assembly 12 and the rear cross beam 13; two left rear hydro-pneumatic spring upper bearings 15 are welded on the first outer side surface 18c of the first side plate 183, two right rear hydro-pneumatic spring upper bearings 11 are welded on the second outer side surface 4d of the fourth side plate 44, and the two left rear hydro-pneumatic spring upper bearings 15 and the two right rear hydro-pneumatic spring upper bearings 11 are symmetrically arranged. The two left rear hydro-pneumatic spring upper supports 15 and the two right rear hydro-pneumatic spring upper supports 11 can be used as upper mounting points of the rear hydro-pneumatic springs together.
The tail boom 13 includes an upper closure plate 131, a lower closure plate 132 and a forward side closure plate 133. The side parts of the upper sealing plate 131 and the lower sealing plate 132 far away from the middle-rear cross beam assembly 12 are in arc transition and connected together, two ends of the upper sealing plate 131 are respectively overlapped with the first upper cover plate 181 of the left longitudinal beam 18 and the second upper cover plate 41 of the right longitudinal beam 4, and two ends of the lower sealing plate 132 are respectively overlapped with the first lower cover plate 182 of the left longitudinal beam 18 and the second lower cover plate 42 of the right longitudinal beam 4; both ends of the front side closing plate 133 are bent forward to overlap the second side plate 184 of the left side member 18 and the third side plate 43 of the right side member 4, respectively.
In this embodiment, the middle-rear axle transverse push rod support 10 located between the middle-rear cross beam assembly 12 and the rear cross beam 13 is directly welded to the front side sealing plate 133 overlapping the third side plate 43, that is, the bottom plate of the middle-rear axle transverse push rod support 10 is the overlapping portion of the front side sealing plate 133 and the third side plate 43.
Further, the upper closing plate 131 of the tail boom 13 is provided with two rear container turning bases 14 corresponding to the rear sides of the left and right side members 18 and 4, respectively, and the rear container turning bases 14 are welded to the upper closing plate 131 and partially extend in the direction of the lower closing plate 132 and are welded to the lower closing plate 132. The two rear cargo box turning bases 14 can be used as hinge points for turning the cargo box of the dump truck backwards.
According to the invention, the second cross beam 8, the third cross beam 9, the middle and rear cross beam assembly 12 and the tail cross beam 13 are in lap joint with the left longitudinal beam 18 and the right longitudinal beam 4, so that the frame of the dump truck forms a firm integral box-shaped section welding frame.
The invention also relates to a dump truck, which comprises the dump truck frame, and the dump truck is a mine dump truck.
The invention has the beneficial effects that: 1. the dumper frame adopts an integral box-shaped section welding frame, the main body of the dumper frame is composed of six cross beams and two longitudinal beams, the six cross beams and the longitudinal beams are mutually interwoven and overlapped to form an integral frame structure, the torsional rigidity and the strength are greatly improved, the complex and changeable severe working conditions of a mine can be resisted, and the design life is long.
2. The box-shaped cross section sizes of the left longitudinal beam 18 and the right longitudinal beam 4 are kept unchanged from front to back and are kept coherent, the upper planes and the lower planes of the left longitudinal beam 18 and the right longitudinal beam 4 are parallel to each other, the heights of the left longitudinal beam 18 and the right longitudinal beam 4 are kept unchanged, and the left longitudinal beam and the right longitudinal beam are easy to machine and form.
3. The dumper frame can be matched with a front suspension type, a rear suspension type and a 6x4 driving type, and is particularly suitable for being applied to hundred-ton mining trucks. Furthermore, the dumper frame has a front axle left longitudinal push rod seat 19 welded on a left longitudinal beam 18 and a right longitudinal beam 4, a front axle right longitudinal push rod seat 3 welded on a left longitudinal beam 4, a left front hydro-pneumatic spring upper support 17, a right front hydro-pneumatic spring upper support 5, a front lower gantry beam 6, two left rear hydro-pneumatic spring upper supports 15, two right rear hydro-pneumatic spring upper supports 11, two middle and rear axle transverse push rod supports 10 and a rear axle longitudinal push rod seat 16 welded in the lower part of the middle and rear cross beam assembly 12, and the dumper frame has the following advantages:
(1) the front suspension frame of the dumper frame is a five-connecting-rod dependent hydro-pneumatic spring suspension frame or a four-connecting-rod dependent hydro-pneumatic spring suspension frame, and compared with a hydro-pneumatic spring adopting an independent suspension frame, the front suspension frame can well keep wheel positioning parameters, minimize the abrasion loss of tires and prolong the service life of the tires, which is important for reducing the operation cost of the dumper; the adoption of the non-independent suspension has simple and firm structure and minimum abrasion parts, so that the initial acquisition cost and the maintenance cost are the lowest;
(2) the front suspension of the dumper frame is provided with the hydro-pneumatic spring, and compared with a non-independent suspension adopting a steel plate spring, the hydro-pneumatic suspension is small in size and light in weight, and the service life of the front axle load and the suspension can be greatly prolonged. The hydro-pneumatic spring is used for heavy-duty automobiles, has the same dynamic capacity as an elastic element, is lighter than a steel plate spring by 50 percent, is easy to realize automatic adjustment of the height of an automobile body, and has ideal elastic characteristics;
(3) the dumper frame is an integral box-shaped section welding frame, a rear suspension frame is provided with a double-shaft hydro-pneumatic spring five-link dependent suspension frame, a middle-rear axle longitudinal push rod seat 16 is welded below a middle-rear cross beam assembly 12 and serves as a mounting seat for 4 longitudinal push rods of a middle-rear axle with double shafts. The hydro-pneumatic spring matched in the same way is higher in load bearing capacity than a steel plate spring with a balance shaft, and the service life of the suspension is longer.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (15)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011174847.3A CN112249160A (en) | 2020-10-28 | 2020-10-28 | Dumper frame and dumper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011174847.3A CN112249160A (en) | 2020-10-28 | 2020-10-28 | Dumper frame and dumper |
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| CN112249160A true CN112249160A (en) | 2021-01-22 |
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| CN202011174847.3A Pending CN112249160A (en) | 2020-10-28 | 2020-10-28 | Dumper frame and dumper |
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| CN115158461A (en) * | 2022-07-28 | 2022-10-11 | 中冶京诚（湘潭）矿山装备有限公司 | Mining dump truck frame and mining dump truck |
| CN115723847A (en) * | 2022-12-09 | 2023-03-03 | 中联重科股份有限公司 | Flexible frame and mining dump truck |
| CN116101373A (en) * | 2022-12-28 | 2023-05-12 | 航天重型工程装备有限公司 | Mining wide vehicle frame and mining wide vehicle |
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