CN220076492U - Bolt-connected frame of off-highway wide dumper - Google Patents

Abstract

The utility model discloses a bolting frame of an off-highway wide dumper, which comprises the following components: main frame with set up in the sub vehicle frame of main frame top, the main frame includes: a pair of frame main beams which are arranged in parallel at intervals, a through beam, a front oil gas suspension ring beam, a lifting oil cylinder support and a plurality of cross beams which are arranged on the pair of frame main beams; the frame girder comprises a frame longitudinal beam, a frame lining beam which is lined in the frame longitudinal beam and a frame reinforcing plate which is arranged on the outer side surface of a web plate of the frame longitudinal beam; the plurality of cross beams comprise two cross beam assemblies, a middle cross beam assembly and five cross beam assemblies, and the middle cross beam assembly comprises three cross beam assemblies, a stiffening beam assembly, four cross beam assemblies and a cross beam connecting plate. The utility model can meet the requirements of large-scale products rated for bearing 90T-100T, and the frame has enough bending rigidity and torsional rigidity under the conditions of lengthening the vehicle wheelbase and widening the frame.

Description

Bolt-connected frame of off-highway wide dumper

Technical Field

The utility model relates to the technical field of frame structures. More particularly, the present utility model relates to an off-highway wide dump truck bolted frame.

Background

The off-highway wide body dumper is a specialized transportation device for surface mining, the frame is one of the most important parts of the off-highway wide body dumper, and the frame must have enough rigidity and strength on mine roads facing severe working environments to ensure the adaptability of the vehicle to random road impact and the reliability of each part.

The structural form of the bolting type frame of the off-highway wide-body dumper is mainly composed of a bolting type main frame and an auxiliary frame, rated load is generally in the level of 60-70T, along with the development trend of large-scale products, the rated load is gradually increased, the wheelbase of the whole dumper is lengthened, the frame is widened, the rigidity level of the dumper is in a negative increasing trend, and moreover, the load level of the dumper can not meet the requirement of larger tonnage products. Meanwhile, with the continuous improvement of the requirements of users on riding comfort, the front hydro-pneumatic suspension is already the standard of a wide-body dump truck, the two-point support suspended by the plate spring is replaced by the single-point support suspended by the hydro-pneumatic suspension, the load and the arm of force are increased, and the challenges for the deformation of the bolted frame and the reliability thereof are greater.

Disclosure of Invention

The utility model aims to provide an off-highway wide dump truck bolted frame which can meet the requirements of large-scale products rated for bearing 90T-100T, and has enough bending rigidity and torsional rigidity under the conditions of lengthening the vehicle wheelbase and widening the frame.

To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided an off-highway wide body dump truck bolted frame comprising: main frame with set up in the sub vehicle frame of main frame top, the main frame includes: a pair of frame main beams which are arranged in parallel at intervals, a through beam, a front oil gas suspension ring beam, a lifting oil cylinder support and a plurality of cross beams which are arranged on the pair of frame main beams;

the frame girder comprises a frame longitudinal beam, a frame lining beam which is lined in the frame longitudinal beam and a frame reinforcing plate which is arranged on the outer side surface of a web plate of the frame longitudinal beam;

the plurality of cross beams comprise two cross beam assemblies, a middle cross beam assembly and five cross beam assemblies, the middle cross beam assembly comprises three cross beam assemblies, a reinforcing beam assembly, four cross beam assemblies and cross beam connecting plates, the cross beam connecting plates are arranged in a frame lining beam, and the three cross beam assemblies, the reinforcing beam assemblies and the four cross beam assemblies are all connected to the cross beam connecting plates.

Preferably, the frame longitudinal beam and the frame lining beam are both groove-shaped beams, and the thickness of the groove-shaped beams is 10-16 mm; the height of the outer side face of the web plate of the longitudinal frame beam is 400-500 mm, and the width of the wing plate of the longitudinal frame beam is 130-150 mm; the distance between the outer side surfaces of the webs of the pair of frame longitudinal beams is 1000-1300 mm.

Preferably, the beam connecting plate comprises a pair of upper beam connecting plates and a pair of lower beam connecting plates, wherein the upper beam connecting plates and the lower beam connecting plates are L-shaped bent plates, one side plate body of the upper beam connecting plates is clung to the bottom surface of an upper wing plate of a frame lining beam, the other side plate body is connected with the inner side surface of a web plate of the frame lining beam, one side plate body of the lower beam connecting plates is clung to the top surface of a lower wing plate of the frame lining beam, and the other side plate body is connected with the inner side surface of the web plate of the frame lining beam;

the pair of upper cross beam connecting plates are respectively connected in the upper inner corners of the pair of frame lining beams, and the pair of lower cross beam connecting plates are respectively connected in the lower inner corners of the pair of frame lining beams.

Preferably, a plurality of first convex parts are arranged on one side plate body of the upper cross beam connecting plate, which is clung to the upper wing plate of the frame lining beam, and are used for being respectively connected with the three cross beam assembly, the stiffening beam assembly and the four cross beam assembly, and the root internal corners of the first convex parts are transited through smooth concave arcs;

a plurality of second convex parts are arranged on one side plate body of the lower wing plate, which is tightly attached to the frame lining beam, of the lower cross beam connecting plate and are used for being connected with the three cross beam assembly, the stiffening beam assembly and the four cross beam assembly respectively, and the root internal corners of the second convex parts are in transition through smooth concave arcs.

Preferably, the front hydro-pneumatic suspension ring beam includes:

two oil cylinder brackets respectively connected to the outer side surfaces of the middle front parts of the pair of frame reinforcing plates;

the ring beam lower bent beam is positioned below the frame main beam, and two ends of the ring beam lower bent beam are respectively connected to the lower parts of the two oil cylinder brackets;

the two vehicle body suspension brackets are respectively positioned at two sides of the pair of frame main beams and are respectively connected to the tops of the two oil cylinder brackets;

the ring beam upper bent beam is positioned above the frame main beam, and two ends of the ring beam upper bent beam are respectively connected to the two vehicle body suspension brackets.

Preferably, the outer side surfaces of the middle front parts of the pair of frame reinforcing plates are respectively connected with two cross beam brackets, and the two cross beam assemblies are positioned below the frame main beams and the two ends of the two cross beam assemblies are respectively connected with the pair of two cross beam brackets;

the two-beam assembly comprises: the bending beam comprises two beam bending plates and two beam rib plates which form a bending beam structure, two beam end plates which are arranged at two ends of the bending beam structure, and two beam reinforcing ribs which are connected between the two beam end plates and the two beam bending plates, wherein the two beam end plates are connected with the two beam brackets.

Preferably, the three-beam assembly includes: the three-beam bending device comprises a three-beam front bending plate, a three-beam back bending plate and a three-beam lower bending plate which are connected into an I-beam structure, wherein one side plate body of the three-beam front bending plate and one side plate body of the three-beam back bending plate jointly form an upper wing plate of the I-beam structure, the other side plate body of the three-beam front bending plate and the other side plate body of the three-beam back bending plate are connected to form a web plate of the I-beam structure, and the three-beam lower bending plate forms a lower wing plate of the I-beam structure;

the left and right ends of the upper wing plate of the three-beam assembly are respectively connected with a pair of upper beam connecting plates, and the left and right ends of the lower wing plate of the three-beam assembly are respectively connected with a pair of lower beam connecting plates;

the middle part of the lower bending plate of the three beams is protruded in the longitudinal direction of the frame to form a shape like a Chinese character 'ji', and the left side and the right side of the plate body of the web plate formed by the front bending plate of the three beams and the rear bending plate of the three beams are recessed inwards to form arc transition parts.

Preferably, the lift cylinder support includes:

a pair of lifting mounting seats respectively connected to the outer side surfaces of the middle front parts of the pair of frame reinforcing plates;

and the lifting upper bent beam is positioned above the frame main beam, and two ends of the lifting upper bent beam are respectively connected with the tops of the pair of lifting installation seats.

Preferably, two ends of the five-beam assembly are respectively connected to the inner side surfaces of webs of a pair of frame lining beams;

the auxiliary frame is arranged above the frame longitudinal beam and is attached to the upper wing surface of the frame longitudinal beam, and the auxiliary frame is positioned between a pair of frame reinforcing plates and is connected with the frame reinforcing plates through bolts;

the outer side surfaces of the rear ends of the pair of frame reinforcing plates are respectively provided with a frame tail reinforcing seat, and the frame tail reinforcing seats are provided with turnover hinged seats.

The utility model at least comprises the following beneficial effects:

1. under the condition that the main frame and auxiliary frame structure is still preserved, the three-beam assembly, the stiffening beam assembly and the four-beam assembly are simultaneously connected through the beam connecting plates, so that a plurality of beams in the middle of the main frame are connected into a whole, the torsional rigidity of the frame is effectively improved, and meanwhile, the overall bending rigidity and torsional rigidity of the bolted frame are further improved through properly increasing the height of the ventral surface of the longitudinal beam of the frame. The CAE simulation analysis shows that the bending rigidity of the frame disclosed by the utility model is improved by about 40% compared with that of the traditional bolted frame, and the torsional rigidity is improved by about 1 time. The requirements of large-scale products with rated load bearing of 90T-100T level can be met, and the vehicle frame has enough bending rigidity and torsional rigidity under the condition that the vehicle wheelbase is lengthened and the vehicle frame is widened;

2. the frame longitudinal beam and the frame lining beam are groove-shaped beams, so that the inner cavity of the frame longitudinal beam and the frame lining beam can provide an installation space for a bracket of equipment such as a power assembly and the like, and the width of the frame is effectively controlled;

3. the beam connecting plate is connected with the three-beam assembly, the stiffening beam assembly and the four-beam assembly through the convex parts, the concave angles of the convex parts are transited through large arcs and are smoothly connected with the three-beam assembly and the stiffening beam assembly, and no structural sharp points are formed, so that the stress distribution of the frame is uniform when the frame is used, and the stress concentration damage is not easy to occur;

4. the sheet metal parts are mainly used as structural parts in the frame structure, so that manufacturability of manufacturing, production and processing is good, each assembly structure is fixedly arranged on the main frame girder in a screwed or riveted mode, the welding process is reduced, the production efficiency is improved, and meanwhile, the cost is reduced.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a schematic view of a bolted frame of an off-highway wide dump truck according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a frame rail of the bolted frame of the off-highway wide body dump truck of the present utility model;

FIG. 3 is a schematic cross-beam view of a bolted frame of an off-highway wide dump truck according to the present utility model;

FIG. 4 is a schematic diagram of a two-beam assembly of a bolted frame of an off-highway wide dump truck according to the present utility model;

FIG. 5 is a schematic view of a three-beam assembly of a bolted frame of an off-highway wide dump truck according to the present utility model;

FIG. 6 is a schematic view of a reinforcement beam assembly of the bolted frame of the off-highway wide dump truck of the present utility model;

FIG. 7 is a schematic diagram of a four-beam assembly of a bolted frame of an off-highway wide dump truck according to the present utility model;

FIG. 8 is a schematic view of a cross member connection plate structure of a bolted frame of an off-highway wide dump truck according to the present utility model;

FIG. 9 is a schematic diagram of a five-beam assembly of a bolted frame of an off-highway wide dump truck according to the present utility model;

FIG. 10 is a schematic view of a front oil gas suspension collar beam structure of a bolted frame of an off-highway wide dump truck according to the present utility model;

FIG. 11 is a schematic view of the upper camber beam structure of the front hydro-pneumatic suspension ring beam of the present utility model;

FIG. 12 is a schematic view of a body suspension bracket of a front hydro-pneumatic suspension ring beam according to the present utility model;

FIG. 13 is a schematic view of the lower camber beam structure of the front hydro-pneumatic suspension ring beam of the present utility model;

FIG. 14 is a schematic view of a through-beam configuration of a bolted frame of an off-highway wide dump truck according to the present utility model;

FIG. 15 is a schematic view of a lift cylinder mount for a bolted frame of an off-highway wide dump truck according to the present utility model;

FIG. 16 is a schematic view of the front bracket structure of the bolted frame of the off-highway wide dump truck of the present utility model;

FIG. 17 is a schematic view of a two-beam bracket structure of a bolted frame of an off-highway wide dump truck according to the present utility model;

FIG. 18 is a schematic view of the main and sub frame connection brackets of the bolted frame of the off-highway wide dump truck of the present utility model;

FIG. 19 is a schematic view of a frame tail reinforcement seat of a bolted frame of an off-highway wide dump truck according to the present utility model;

fig. 20 is a schematic view of a subframe structure of a bolted frame of an off-highway wide dump truck according to the present utility model.

Detailed Description

The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.

It should be noted that, in the description of the present utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1, the present utility model provides an off-highway wide dump truck bolted frame, comprising: a main frame and set up in sub vehicle frame 7 of main frame top, the main frame includes: a pair of frame main beams 1 which are arranged in parallel at intervals, a through beam 4, a front oil gas suspension ring beam 3, a lifting oil cylinder support 5 and a plurality of cross beams 2 which are arranged on the pair of frame main beams;

the frame main beam 1 comprises a frame longitudinal beam 11, a frame lining beam 12 which is lined in the frame longitudinal beam, and a frame reinforcing plate 13 which is arranged on the outer side surface of a web plate of the frame longitudinal beam;

the cross beams 2 comprise two cross beam assemblies 21, a middle cross beam assembly and five cross beam assemblies 26, the middle cross beam assembly comprises three cross beam assemblies 22, a reinforcing beam assembly 23, four cross beam assemblies 24 and a cross beam connecting plate 25, the cross beam connecting plate 25 is arranged in the frame lining beam 12, and the three cross beam assemblies 22, the reinforcing beam assemblies 23 and the four cross beam assemblies 24 are all connected to the cross beam connecting plate 25.

Specifically, as shown in fig. 2, the frame longitudinal beam 11 and the frame lining beam 12 are both groove-shaped beams, the frame lining beam 12 is arranged inside the frame longitudinal beam 11 and is attached to the frame longitudinal beam 11, the notches of the frame lining beams 12 of the pair of frame main beams 1 are opposite, and the frame longitudinal beam 11 and the frame lining beam 12 are both groove-shaped beams, so that the inner cavities of the frame longitudinal beam 11 and the frame lining beam 12 can provide an installation space for a bracket of a power assembly and other equipment, and the width of the frame is effectively controlled;

more specifically, the plate thickness of the groove-shaped beam is 10-16 mm, and the increase of the plate thickness causes the rigidity of the frame to be increased; the height of the web outer side surface of the frame longitudinal beam 11 is 400-500 mm, the increase of the height of the web outer side surface of the frame longitudinal beam 11 can cause the increase of the cross section of the frame main beam 1 so as to increase the rigidity of the frame, the width of the wing plate of the frame longitudinal beam 11 is 130-150 mm, and the increase of the width of the wing plate can also cause the increase of the cross section of the frame main beam 1 so as to increase the rigidity of the frame; considering the limitation of the layout space of the power train and the transmission system and the distance between the axle and the leaf spring, the distance between the web outer sides of the pair of frame rails 11 (i.e., the frame width) is set to 1000 to 1300mm.

Specifically, as shown in fig. 2, the frame reinforcing plate 13 is in a flat plate structure, is disposed on the outer side surface of the web plate of the frame longitudinal beam 11 and is attached to the web plate, and further enhances the bending stiffness and the torsional stiffness of the frame main beam 1 by disposing the frame reinforcing plate 13.

Specifically, as shown in fig. 8, the beam connecting plate 25 includes a pair of upper beam connecting plates 251 and a pair of lower beam connecting plates 252, where the upper beam connecting plates 251 and the lower beam connecting plates 252 are L-shaped bent plates, one side plate body of the upper beam connecting plates 251 is tightly attached to the bottom surface of the upper wing plate of the frame lining beam 12, the other side plate body is connected to the inner side surface of the web plate of the frame lining beam 12, and one side plate body of the lower beam connecting plates 252 is tightly attached to the top surface of the lower wing plate of the frame lining beam 12, and the other side plate body is connected to the inner side surface of the web plate of the frame lining beam 12;

a pair of upper beam connection plates 251 are respectively connected to the upper interior corners of a pair of frame rail 12, and a pair of lower beam connection plates 252 are respectively connected to the lower interior corners of a pair of frame rail 12.

Here, bolt connection holes are generally not allowed to be formed on wing plates of the frame longitudinal beam 11 and the frame lining beam 12, so that the three-beam assembly 22, the reinforcing beam assembly 23 and the four-beam assembly 24 are conveniently connected by arranging the beam connection plates 25, and the three-beam assembly 22, the reinforcing beam assembly 23 and the four-beam assembly 24 in the middle of the main frame are connected into a whole by arranging the beam connection plates 25, so that the torsional rigidity of the frame is effectively improved. In addition, the web height of the frame longitudinal beam 11 is increased, so that the frame weight is increased when the beam connecting plate 25 is made into a groove-shaped beam structure, and the improvement on the performance of the frame is limited, so that the beam connecting plate 25 is made into a pair of upper beam connecting plates 251 and a pair of lower beam connecting plates 252, thereby not only ensuring the performance of the frame, but also avoiding the substantial increase of the weight of the frame.

More specifically, as shown in fig. 3, a plurality of first protrusions are provided on a side plate body of the upper beam connecting plate 251, which is closely attached to the upper wing plate of the frame lining beam 12, and are used for respectively connecting with the three beam assembly 22, the stiffening beam assembly 23 and the four beam assembly 24, and the root internal corners of the first protrusions are transited through smooth concave arcs;

the lower beam connecting plate 252 is provided with a plurality of second convex parts on a side plate body of the lower wing plate, which is clung to the frame lining beam 12, and is used for being respectively connected with the three-beam assembly 22, the reinforcing beam assembly 23 and the four-beam assembly 24, and the root internal corners of the second convex parts are transited through smooth concave arcs.

The beam connecting plate 25 is connected with the three-beam assembly 22, the reinforcing beam assembly 23 and the four-beam assembly 24 through the convex parts, the concave angles of the convex parts are transited through large circular arcs and are smoothly connected with the three-beam assembly 22 and the reinforcing beam assembly 23, and no structural sharp points are formed, so that the stress distribution of the frame is uniform when the frame is used, and stress concentration damage is not easy to occur.

In the above embodiment, under the condition that the main frame and the auxiliary frame structure are still preserved, the three-beam assembly 22, the stiffening beam assembly 23 and the four-beam assembly 24 are simultaneously connected by adopting the beam connecting plate 25, so that the plurality of beams in the middle of the main frame are connected into a whole, the torsional rigidity of the frame is effectively improved, and meanwhile, the bending rigidity and the torsional rigidity of the whole bolted frame are further improved by properly increasing the height of the web surface of the longitudinal beam of the frame. The CAE simulation analysis shows that the bending rigidity of the bolted frame is improved by about 40 percent compared with that of the prior frame, and the torsional rigidity is improved by about 1 time. The requirements of large-scale products with rated load bearing of 90T-100T level can be met, and the frame has enough bending rigidity and torsional rigidity under the conditions of lengthened vehicle wheelbase and widened frame.

In another embodiment, as shown in fig. 1, the through beam 4 may be connected to the main frame beam in the following manner:

the front end outer side surface of the frame reinforcing plate 13 is connected with a front bracket 61, the front bracket 61 extends to the front of the frame main beams 1, and the through beam 4 is transversely arranged in front of the pair of frame main beams 1 and is connected with the front brackets 61 on the pair of frame main beams 1.

Specifically, as shown in fig. 1 and 16, the front bracket 61 is formed by welding a first front bracket bending plate 611, a second front bracket bending plate 612, a front bracket reinforcing rib 613 and a front bracket upper mounting plate 614, and the front bracket 61 is connected to the outer side surface of the web of the frame longitudinal beam 11 through bolts, so as to increase the left-right span of the front end of the frame, and facilitate the arrangement of other assembly systems.

Specifically, as shown in fig. 14, the through-beam 4 is welded by a first through-beam bending plate 401, a second through-beam bending plate 402, and a through-beam reinforcing rib 403, and the through-beam 4 is connected to the front bracket 61 by bolts.

In another embodiment, as shown in fig. 10, the front hydro-pneumatic suspension ring beam 3 may have the following structure:

two cylinder brackets 62 respectively connected to the outer side surfaces of the middle front portions of the pair of frame reinforcing plates 13, specifically, the cylinder brackets 62 are integrally cast, and the cylinder brackets 62 are connected with the frame reinforcing plates 13 through bolts;

the ring beam lower bent beam 33 is located below the main frame beam 1, and two ends of the ring beam lower bent beam are respectively connected to the lower parts of the two oil cylinder brackets 62. Specifically, as shown in fig. 13, the ring beam lower bent beam 33 is formed by welding a lower bent beam bent plate 331, a lower bent beam rib plate 333, a lower bent beam reinforcing rib 334 and a lower bent beam end plate 332, and the lower bent beam end plate 332 is mounted at the lower parts of the two oil cylinder brackets 62 through bolt connection;

two body suspension brackets 32, which are respectively located at both sides of the pair of frame girders 1, and two body suspension brackets 33 are respectively connected to the tops of the two cylinder brackets 62. Specifically, as shown in fig. 12, the structure of the vehicle body suspension bracket 32 is shown in fig. 12, the vehicle body suspension bracket 32 is formed by welding a vehicle body suspension bracket upper panel 321, a vehicle body suspension bracket rib plate 322, a vehicle body suspension bracket reinforcing rib one 323, a vehicle body suspension bracket reinforcing rib two 325 and a vehicle body suspension bracket bottom plate 324, and the vehicle body suspension bracket bottom plate 324 is mounted at the top of the oil cylinder bracket 62 through bolt connection;

the ring beam upper bent beam 31 is located above the frame main beam 1, two ends of the ring beam upper bent beam 31 are respectively connected to two vehicle body suspension brackets 32, specifically, the ring beam upper bent beam 31 is shown in fig. 11, the ring beam upper bent beam 31 is formed by welding an upper bent beam bent plate 312, an upper bent beam rib plate 311 and an upper bent beam end plate 313, and the upper bent beam bent plate 312 is mounted on a vehicle body suspension bracket upper panel 321 of the vehicle body suspension bracket 32 through bolting.

Here, the front oil gas suspension ring beam 3 is arranged at the front suspension position of the frame in the form of an upper bent beam and a lower bent beam, so that the defect of a structure that the front end of the frame is free of a cross beam support due to arrangement of a power assembly can be overcome, meanwhile, the detachable assembly mode is convenient for disassembly and maintenance of the power assembly, and the front oil gas suspension ring beam 3 has another function of effectively buffering the condition that the frame is stressed too much due to single-point load impact when the front suspension adopts the oil gas suspension.

In another embodiment, as shown in fig. 1, the two-beam assembly 21 may be connected to the frame main beam 1 in the following manner:

two cross beam brackets 63 are connected to the outer side surfaces of the middle front parts of the pair of frame reinforcing plates 13, the two cross beam assemblies 21 are positioned below the frame main beam 1, and two ends of the two cross beam assemblies are respectively connected with the pair of cross beam brackets 63;

specifically, as shown in fig. 4, the two-beam assembly 21 is formed by welding two beam bending plates 212 and two beam rib plates 213 that form a beam bending structure, two beam end plates 211 that are disposed at two ends of the beam bending structure, and two beam reinforcing ribs 214 that are connected between the two beam end plates 211 and the two beam bending plates 212, and the two beam end plates 211 are in bolted connection with the two beam brackets 63.

Specifically, as shown in fig. 17, the two cross beam brackets 63 are welded by two cross beam bracket connection plates 631 and two cross beam bracket reinforcing ribs 632, and the two cross beam brackets 63 are mounted on the frame reinforcing plate 13 by bolting.

Here, the two beam assemblies 21 are of a curved beam structure and are arranged below the frame main beam 1, and are mainly used for avoiding the arrangement space of the power assembly, and meanwhile, the detachable assembly mode is convenient for the disassembly, assembly and maintenance of the power assembly.

In another embodiment, as shown in fig. 15, the lift cylinder support 5 may have the following structure:

a pair of lift mounts 52 connected to the middle front outer side surfaces of the pair of frame reinforcement plates 13, respectively. Specifically, as shown in fig. 15, the lifting installation seat 52 is formed by welding a lifting installation seat bending plate 521 and a lifting installation seat reinforcing rib 522, and the lifting installation seat 52 is mounted on the frame reinforcing plate 13 through bolt connection;

the lifting upper bent beam 51 is located above the frame main beam 1, and two ends of the lifting upper bent beam are respectively connected with the tops of a pair of lifting installation seats 52. Specifically, as shown in fig. 15, the lifting upper curved beam 51 is formed by welding a lifting curved plate 512, a lifting rib plate 511 and a lifting reinforcing plate 513, and the lifting upper curved beam 51 is mounted on the lifting mounting seat 52 through bolting.

In another embodiment, as shown in fig. 5, the three-beam assembly may have the following structure: the three-beam front bending plate, the three-beam rear bending plate 221 and the three-beam lower bending plate 222 are connected to form an I-beam structure, one side plate body of the three-beam front bending plate and one side plate body of the three-beam rear bending plate 221 jointly form an upper wing plate of the I-beam structure, the other side plate body of the three-beam front bending plate and the other side plate body of the three-beam rear bending plate 221 are connected to form a web plate of the I-beam structure, the three-beam lower bending plate 222 forms a lower wing plate of the I-beam structure, and particularly, the three-beam front bending plate, the three-beam rear bending plate 221 and the three-beam lower bending plate 222 can be formed by sheet metal bending, the three-beam front bending plate and the three-beam rear bending plate 221 are connected in a riveting mode, and the three-beam lower bending plate 222 is connected with the three-beam front bending plate and the three-beam rear bending plate 221 in a welding mode;

as shown in fig. 3, the left and right ends of the upper wing plate of the three-beam assembly 22 are respectively connected with a pair of upper beam connecting plates 251, the left and right ends of the lower wing plate of the three-beam assembly 22 are respectively connected with a pair of lower beam connecting plates 252, and the three-beam assembly 22 is installed between the pair of upper beam connecting plates 251 and between the pair of lower beam connecting plates 252 by riveting. Specifically, the three-beam assembly 22 is disposed at a position behind the lift cylinder support 5 and near the middle of the frame main beam 1;

the middle part of the three-beam lower bending plate 222 protrudes in the longitudinal direction of the frame to form a shape like a Chinese character 'ji', and both the left side and the right side of the plate body of the web plate formed by the three-beam front bending plate and the three-beam rear bending plate 221 are inwards recessed to form an arc transition part.

Here, the structure of the middle part of the lower bending plate 222 of the three beams is designed to leave the arrangement space of the transmission shaft, and the curved transition parts on the front bending plate of the three beams and the rear bending plate 221 of the three beams are designed to avoid stress concentration, so that the stress distribution on the structural member of the three beams is more uniform, the cross section of the three beams assembly 22 is shaped like an "I", the cross section area of the beams is effectively increased, and the torsion resistance of the beams is improved.

In another embodiment, as shown in fig. 6, the reinforcement beam assembly 23 may have the following structure: the reinforcing beam front bending plate 231 and the reinforcing beam lower bending plate 232 are connected to form a groove-shaped beam structure, one side plate body of the reinforcing beam front bending plate 231 forms an upper wing plate of the groove-shaped beam structure, the other side plate body of the reinforcing beam front bending plate forms a web plate of the groove-shaped beam structure, and the reinforcing beam lower bending plate 232 forms a lower wing plate of the groove-shaped beam structure. Specifically, the front bending plate 231 of the reinforcement beam and the lower bending plate 232 of the reinforcement beam can be formed by bending and processing metal plates, and the lower bending plate 232 of the reinforcement beam is connected with the front bending plate 231 of the reinforcement beam in a welding manner;

as shown in fig. 3, the left and right ends of the upper wing plate of the stiffening beam assembly 23 are respectively connected to a pair of upper beam connection plates 251, and the left and right ends of the lower wing plate of the stiffening beam assembly 23 are respectively connected to a pair of lower beam connection plates 252, where the stiffening beam assembly 23 is respectively installed between the pair of upper beam connection plates 251 and between the pair of lower beam connection plates 252 by riveting. Specifically, the stiffening beam assembly 23 is disposed between the three-beam assembly 22 and the four-beam assembly 24;

the middle part of the lower bending plate 232 of the reinforcing beam is protruded in the longitudinal direction of the frame to form a shape like a Chinese character 'ji', and the left and right sides of the plate body of the web plate formed by the front bending plate 231 of the reinforcing beam are recessed inwards to form arc transition parts.

Here, the zigzag structure in the middle of the lower bending plate 232 of the stiffening beam is to leave a space for arranging the transmission shaft, and the arc transition portion on the front bending plate 231 of the stiffening beam is to avoid stress concentration, so that the stress distribution on the structural member of the stiffening beam assembly 23 is more uniform.

In another embodiment, as shown in fig. 7, the four-beam assembly 24 may have the following structure: the four-beam front bending plate and the four-beam rear bending plate 241 which are connected into an I-beam structure, specifically, the four-beam front bending plate and the four-beam rear bending plate 241 can be processed into a groove-shaped beam structure by sheet metal bending, and the four-beam front bending plate and the four-beam rear bending plate 241 are riveted back to back.

The left and right ends of the upper wing plate of the four-beam assembly 24 are respectively connected with a pair of upper beam connecting plates 251, the left and right ends of the lower wing plate of the four-beam assembly 24 are respectively connected with a pair of lower beam connecting plates 252, and the four-beam assembly 24 is arranged between the pair of upper beam connecting plates 251 and between the pair of lower beam connecting plates 252 in a riveting manner. Specifically, the four-beam assembly 24 is disposed at a center of the rear suspension structure corresponding to the frame position.

The cross section of the four-beam assembly 24 is I-shaped, and is mainly used for increasing the cross section area of the rear suspension position corresponding to the frame cross beam, so that the rigidity level of the rear suspension position corresponding to the frame can be effectively increased.

In another embodiment, as shown in FIG. 1, the five cross member assemblies 26 are each connected at both ends to the web inner sides of a pair of frame rail members 12. Specifically, as shown in fig. 9, the structure of the five-beam assembly 26 is shown in fig. 9, the five-beam assembly 26 is formed by welding a five-beam main pipe 263, five-beam end plates 261 disposed at two ends of the five-beam main pipe 263, five-beam reinforcing pipes 264 disposed between the five-beam end plates 261, five-beam reinforcing plates 262 disposed on the five-beam main pipe 263, and five-beam reinforcing sleeves 265 disposed between the five-beam reinforcing plates 262 and the five-beam end plates 261, and the five-beam end plates 261 are mounted on the inner side surfaces of the webs of the frame lining beams 12 in a bolt connection manner.

The auxiliary frame 7 is arranged above the frame longitudinal beam 11 and is attached to the upper wing surface of the frame longitudinal beam 11, and the auxiliary frame 7 is positioned between a pair of frame reinforcing plates 13 and is connected with the frame reinforcing plates 13 through bolts. Specifically, as shown in fig. 20, the subframe is composed of a subframe longitudinal beam 701, a subframe reinforcing rib 702, a subframe cross beam 703, a subframe cross beam connecting plate 704, a subframe X-shaped structure 706 and a subframe X-shaped structure reinforcing plate 707, wherein the subframe X-shaped structure 706 is arranged to increase the rigidity of the tail part of the subframe, so that the stability of lifting and unloading is improved;

the outer side surfaces of the rear ends of the pair of frame reinforcing plates 13 are respectively provided with a frame tail reinforcing seat 65, and the frame tail reinforcing seats 65 are provided with turnover hinged seats 708. Specifically, as shown in fig. 19, the frame tail reinforcing seat 65 is formed by welding a frame tail reinforcing seat bending plate 651 and a frame tail reinforcing seat reinforcing rib 652.

In order to further strengthen the connection between the main and auxiliary frames, the outer side surface of the frame reinforcing plate 13 is further provided with a main and auxiliary frame connecting bracket 64, the auxiliary frame 7 is provided with an auxiliary frame mounting seat 705 corresponding to the main and auxiliary frame connecting bracket 64, and the main and auxiliary frame connecting bracket 64 is connected with the auxiliary frame mounting seat 705 through bolts. Specifically, as shown in fig. 18, the main and sub frame connecting brackets 64 are formed by welding a main and sub frame connecting bracket bent plate 641 and a main and sub frame connecting bracket reinforcing rib 642.

In the embodiment, the sheet metal part is mainly used as the structural part in the frame structure, so that the manufacturability of manufacturing, production and processing is good, and each assembly structure is fixedly arranged on the main girder of the frame in a screwed or riveted mode, so that the welding process is reduced, the production efficiency is improved, and the cost is reduced.

Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims (9)

1. An off-highway wide body dump truck bolted frame, comprising: main frame with set up in the sub vehicle frame of main frame top, the main frame includes: a pair of frame main beams which are arranged in parallel at intervals, a through beam, a front oil gas suspension ring beam, a lifting oil cylinder support and a plurality of cross beams which are arranged on the pair of frame main beams;

the frame girder comprises a frame longitudinal beam, a frame lining beam which is lined in the frame longitudinal beam and a frame reinforcing plate which is arranged on the outer side surface of a web plate of the frame longitudinal beam;

the plurality of cross beams comprise two cross beam assemblies, a middle cross beam assembly and five cross beam assemblies, the middle cross beam assembly comprises three cross beam assemblies, a reinforcing beam assembly, four cross beam assemblies and cross beam connecting plates, the cross beam connecting plates are arranged in a frame lining beam, and the three cross beam assemblies, the reinforcing beam assemblies and the four cross beam assemblies are all connected to the cross beam connecting plates.

2. The off-highway wide body dump truck bolted frame of claim 1, wherein the frame rails and the frame lining beams are channel beams and the thickness of the channel beams is 10-16 mm; the height of the outer side face of the web plate of the longitudinal frame beam is 400-500 mm, and the width of the wing plate of the longitudinal frame beam is 130-150 mm; the distance between the outer side surfaces of the webs of the pair of frame longitudinal beams is 1000-1300 mm.

3. The off-highway wide body dump truck bolting frame according to claim 2, wherein the cross beam connecting plates comprise a pair of upper cross beam connecting plates and a pair of lower cross beam connecting plates, the upper cross beam connecting plates and the lower cross beam connecting plates are L-shaped bent plates, one side plate body of the upper cross beam connecting plates is clung to the bottom surface of an upper wing plate of a frame lining beam, the other side plate body is connected with the inner side surface of a web plate of the frame lining beam, one side plate body of the lower cross beam connecting plates is clung to the top surface of a lower wing plate of the frame lining beam, and the other side plate body is connected with the inner side surface of the web plate of the frame lining beam;

the pair of upper cross beam connecting plates are respectively connected in the upper inner corners of the pair of frame lining beams, and the pair of lower cross beam connecting plates are respectively connected in the lower inner corners of the pair of frame lining beams.

4. The non-highway wide body dump truck bolting frame according to claim 3, wherein a plurality of first convex parts are arranged on a side plate body of an upper wing plate, which is closely attached to a frame lining beam, of the upper cross beam connecting plate and are used for being respectively connected with a three-cross beam assembly, a stiffening beam assembly and a four-cross beam assembly, and the root internal corners of the first convex parts are transited through smooth concave arcs;

a plurality of second convex parts are arranged on one side plate body of the lower wing plate, which is tightly attached to the frame lining beam, of the lower cross beam connecting plate and are used for being connected with the three cross beam assembly, the stiffening beam assembly and the four cross beam assembly respectively, and the root internal corners of the second convex parts are in transition through smooth concave arcs.

5. The off-highway wide body dump truck bolted frame of claim 1, wherein said front hydro-pneumatic suspension collar beam comprises:

two oil cylinder brackets respectively connected to the outer side surfaces of the middle front parts of the pair of frame reinforcing plates;

the ring beam lower bent beam is positioned below the frame main beam, and two ends of the ring beam lower bent beam are respectively connected to the lower parts of the two oil cylinder brackets;

the two vehicle body suspension brackets are respectively positioned at two sides of the pair of frame main beams and are respectively connected to the tops of the two oil cylinder brackets;

the ring beam upper bent beam is positioned above the frame main beam, and two ends of the ring beam upper bent beam are respectively connected to the two vehicle body suspension brackets.

6. The bolting frame of the off-highway wide dumper according to claim 1, wherein two cross beam brackets are connected to the outer side surfaces of the middle front part of a pair of frame reinforcing plates, and the two cross beam assemblies are positioned below the frame main beam and are respectively connected with the two cross beam brackets at two ends;

the two-beam assembly comprises: the bending beam comprises two beam bending plates and two beam rib plates which form a bending beam structure, two beam end plates which are arranged at two ends of the bending beam structure, and two beam reinforcing ribs which are connected between the two beam end plates and the two beam bending plates, wherein the two beam end plates are connected with the two beam brackets.

7. The non-highway wide body dump truck bolted frame of claim 3, wherein said three-beam assembly comprises: the three-beam bending device comprises a three-beam front bending plate, a three-beam back bending plate and a three-beam lower bending plate which are connected into an I-beam structure, wherein one side plate body of the three-beam front bending plate and one side plate body of the three-beam back bending plate jointly form an upper wing plate of the I-beam structure, the other side plate body of the three-beam front bending plate and the other side plate body of the three-beam back bending plate are connected to form a web plate of the I-beam structure, and the three-beam lower bending plate forms a lower wing plate of the I-beam structure;

the left and right ends of the upper wing plate of the three-beam assembly are respectively connected with a pair of upper beam connecting plates, and the left and right ends of the lower wing plate of the three-beam assembly are respectively connected with a pair of lower beam connecting plates;

the middle part of the lower bending plate of the three beams is protruded in the longitudinal direction of the frame to form a shape like a Chinese character 'ji', and the left side and the right side of the plate body of the web plate formed by the front bending plate of the three beams and the rear bending plate of the three beams are recessed inwards to form arc transition parts.

8. The off-highway wide body dump truck bolted frame of claim 1, wherein said lift cylinder support comprises:

a pair of lifting mounting seats respectively connected to the outer side surfaces of the middle front parts of the pair of frame reinforcing plates;

and the lifting upper bent beam is positioned above the frame main beam, and two ends of the lifting upper bent beam are respectively connected with the tops of the pair of lifting installation seats.

9. The off-highway wide body dump truck bolted frame of claim 1, wherein two ends of said five-beam assembly are respectively connected to the web inner sides of a pair of frame lining beams;

the auxiliary frame is arranged above the frame longitudinal beam and is attached to the upper wing surface of the frame longitudinal beam, and the auxiliary frame is positioned between a pair of frame reinforcing plates and is connected with the frame reinforcing plates through bolts;

the outer side surfaces of the rear ends of the pair of frame reinforcing plates are respectively provided with a frame tail reinforcing seat, and the frame tail reinforcing seats are provided with turnover hinged seats.