CN214296128U - Height-limiting dumper frame assembly - Google Patents

Abstract

The height-limiting dumper frame assembly comprises a left frame longitudinal beam and a right frame longitudinal beam, wherein the vertical surfaces of the front ends of the longitudinal beams of the left frame longitudinal beam and the right frame longitudinal beam are provided with a height-reducing slope surface, the front end of the height-reducing slope surface is provided with a Z-shaped stepped height-reducing structure, and the front end of the lowest part of the Z-shaped stepped height-reducing structure is vertically and fixedly connected with a head beam assembly; the tail end of the longitudinal beam of the frame is vertically and fixedly connected with a tail cross beam assembly; a second beam assembly, an engine bracket, a transmission shaft hanging beam assembly, a hydraulic oil tank beam and a rear suspension beam assembly are sequentially arranged between the head beam assembly and the tail beam assembly at intervals in parallel; the outer sides of the left longitudinal beam and the right longitudinal beam of the frame are provided with a plate spring support group. The utility model discloses the structure is brief, and it is convenient to make, and the dead weight is light, and the space is surplus, and the commonality is good, economical and practical, energy-concerving and environment-protective.

Description

Height-limiting dumper frame assembly

Technical Field

The utility model belongs to the technical field of operation haulage vehicle frame structure constitutes, concretely relates to limit for height tipper frame assembly.

Background

At present, the cross beam of the traditional frame part has a complex structure and high manufacturing difficulty, and the front end of the frame longitudinal beam is easy to break and crack due to insufficient strength, so that the service performance of a vehicle is seriously influenced, and great potential safety hazard is brought; in addition, the traditional frame is not suitable for height-limited vehicle types, the front end of the frame has no height-reducing structure, and the frame has a small application range; and the traditional frame structure is redundant, heavy in weight, high in price and useless in the light weight design of the whole vehicle. In view of this, the following improvement is proposed.

Disclosure of Invention

The utility model provides a technical problem: the utility model provides a limit for height tipper frame assembly, adopt and fall the domatic cascaded structure design frame left and right longeron that falls of combining Z shape of rising, be applicable to limit for height motorcycle type when guaranteeing intensity, realize lightweight, the simplification of frame, commonality, economical and practical design.

The utility model adopts the technical proposal that: the utility model provides a limit for height tipper frame assembly, includes frame left side longeron and frame right side longeron, its characterized in that: the vertical surfaces of the front ends of the longitudinal beams of the left longitudinal beam and the right longitudinal beam of the frame are provided with a height-reducing slope surface, the front ends of the height-reducing slope surfaces are provided with Z-shaped stepped height-reducing structures, and the front end of the lowest part of each Z-shaped stepped height-reducing structure is vertically and fixedly connected with a head beam assembly; the tail end of the longitudinal beam of the frame is vertically and fixedly connected with a tail cross beam assembly; a second beam assembly, an engine bracket, a transmission shaft hanging beam assembly, a hydraulic oil tank beam and a rear suspension beam assembly are sequentially arranged between the head beam assembly and the tail beam assembly at intervals in parallel; the outer sides of the left longitudinal beam and the right longitudinal beam of the frame are provided with a plate spring support group.

In the above technical solution, further: the rear suspension cross beam assembly sequentially comprises a rear suspension front cross beam assembly and a rear suspension rear cross beam assembly; the rear-suspension front cross beam assembly is an assembly structure formed by splicing a plurality of channel steel I, the assembly structure is provided with two front and rear parallel horizontal beam bodies I, and the left end and the right end of each horizontal beam body I are vertically and fixedly connected with a left mounting longitudinal beam I and a right mounting longitudinal beam I which are parallel; a hydraulic oil tank support is arranged in the middle of one horizontal beam body I; an oil tank is supported and installed between the hydraulic oil tank support and the hydraulic oil tank cross beam; the longitudinal section of the hydraulic oil tank support is of a Z-shaped structure, and the break angle of the Z-shaped structure is a right angle; the rear suspension rear cross beam assembly is of an H-shaped assembly structure, the rear suspension rear cross beam assembly is provided with an installation longitudinal beam II which is made of channel steel II and has a trapezoidal upper horizontal surface, and the trapezoidal upper bottom edge of the installation longitudinal beam II is vertically and fixedly connected with the middle cross beam 1 of the H-shaped assembly structure into a whole.

In the above technical solution, further: the plate spring support group sequentially comprises a front suspension fixed end plate spring support and a front suspension lug end plate spring support which are arranged at the front end of the frame longitudinal beam; the rear suspension fixed end plate spring support and the rear suspension lug end plate spring support are arranged at the rear end of the frame longitudinal beam; and a secondary plate spring bracket is arranged on the outer side of the middle part of the longitudinal beam of the frame.

In the above technical solution, further: the front suspension fixed end plate spring support is a casting with a longitudinal section in an h-shaped structure; the plate spring support at the lifting lug end of the front suspension frame is a casting with an inverted F-shaped longitudinal section; the rear suspension fixed end plate spring support is an integrally formed casting and is provided with a vertical mounting plate I, and the vertical mounting plate I is vertically and fixedly connected with a right-angle edge of the angle steel; the other right-angle side of the angle steel is vertically and fixedly connected with a U-shaped structure I with a downward opening; the rear suspension lug end plate spring support is an integrally formed casting, and the longitudinal section of the rear suspension lug end plate spring support is of a U-shaped structure II with a downward opening.

In the above technical solution, further: the front end of the frame is sequentially provided with a bumper connecting bracket, a shock absorber fixing bracket and a buffer limiting block; the tail end of the frame is provided with a reinforcing plate.

In the above technical solution, further: the bumper connecting bracket is integrally bent into an L shape, a horizontal mounting plate II of the bumper connecting bracket is fixedly connected with the frame into a whole, and a vertical mounting plate III of the bumper connecting bracket is provided with a bumper mounting hole I; the shock absorber fixing support is provided with a right-angle mounting structure formed by bending a steel plate I, and a triangular reinforcing rib plate is arranged at a right-angle folding angle of the right-angle mounting structure; the buffer limiting block is provided with a first right-angle plate and a second right-angle plate, and the first right-angle plate and the second right-angle plate are welded to form a rectangular cavity; the first straight angle plate is provided with a plurality of mounting holes II which are arranged in a straight line shape; the reinforcing plate is arranged in the frame tail end channel steel IV and reinforces an opening of the support channel steel IV.

In the above technical solution, further: the head beam assembly is provided with a height-reducing Z-shaped plate and a U-shaped plate; one of the parallel plate bodies of the U-shaped plate is provided with an extension arm, and the extension arm and the U-shaped turning part of the U-shaped plate are connected into a whole through a reinforcing rib; the bevel angle at the height-reducing turning position of the height-reducing Z-shaped plate is matched with the Z-shaped bevel angle of the Z-shaped stepped height-reducing structure of the left and right longitudinal beams of the frame; the low-level water-lowering flat plate body of the height-lowering Z-shaped plate is provided with a widened structure; the height-reducing Z-shaped plate is vertically pressed and fastened with the extension arm plate body of the U-shaped plate into a whole through the widening structure of the height-reducing Z-shaped plate.

In the above technical solution, further: the longitudinal section of the second beam assembly is of a horizontally transverse U-shaped structure III, and the left end and the right end of a beam body at the top of the U-shaped horizontal beam are provided with vertical mounting plates IV bent downwards; the hydraulic oil tank cross beam is integrally formed by a steel plate II and bent into an inverted U-shaped structure IV, the left end and the right end of the steel plate II are vertically bent downwards at intervals to form a mounting plate V, and an oil tank mounting hole III is formed in the middle of a horizontal beam body II; the tail beam assembly is formed by splicing a channel steel III and a steel plate III, the steel plate III is integrally bent into a U shape and is fixedly connected with the channel steel III into a whole from top to bottom, and the vertical surfaces bent downwards at the left end and the right end of the steel plate III are vertical mounting plates VI of the tail beam assembly.

In the above technical solution, further: the transmission shaft hanging beam assembly is provided with a n-shaped upper wing plate and a n-shaped lower wing plate, the n-shaped upper wing plate and the n-shaped lower wing plate are connected up and down through a middle connecting plate, and a cavity structure is formed between the middle connecting plate and the n-shaped upper wing plate; the left end and the right end of the n-shaped upper wing plate are installed through a vertical installation plate VII; the middle part of the n-shaped upper wing plate is provided with a bulge.

In the above technical solution, further: the engine bracket is provided with an obtuse angle bending plate; and the bent angle of the obtuse-angle bent plate is provided with a reinforcing connecting plate.

The utility model has the advantages compared with the prior art:

1. the utility model discloses the vertical face sampling of longeron front end of the left and right longeron of frame falls high domatic combination Z shape cascaded height reduction structure and realizes the design that falls of frame, both satisfies the use of traditional frame and satisfies the use of limit for height motorcycle type, the commonality ideal.

2. The utility model discloses take head beam assembly 3 through its extension arm 303, U-shaped board 302 strengthening rib 304, Z shaped plate 301 widen structure 305 realize its with the reliable connection that the solebar front end structure of falling is high, structural strength supports reliably, and the shape of preapring for an unfavorable turn of events, prevent that the fracture effect is good.

3. The utility model discloses second crossbeam assembly 6, transmission shaft hang crossbeam assembly 11, rear overhang front beam assembly 14, rear overhang rear beam assembly 17 adopt shaped steel to realize lightweight, simplification, assemble structural design, and the frame structure is rich and surplus, and the dead weight is light, realizes frame lightweight design.

4. The utility model discloses the structure is brief, convenient the manufacturing, and the dead weight is light, and the space is abundant, and the commonality is good, economical and practical, energy-concerving and environment-protective.

Drawings

Fig. 1 is a side view of the frame of the present invention.

Fig. 2 is a top view of the frame of the present invention.

Fig. 3 is a top view of the head-beam assembly of the present invention.

Fig. 4 is a left side view of the head beam assembly of the present invention shown in fig. 3.

Fig. 5 is a front view of the second cross beam assembly of the present invention.

Fig. 6 is a left side view of the second cross beam assembly of the present invention.

Fig. 7 is the utility model discloses the crossbeam assembly front view is hung to the transmission shaft.

Fig. 8 is the utility model discloses the crossbeam assembly left side view is hung to the transmission shaft.

Fig. 9 is a top view of the rear overhang front cross member assembly of the present invention.

Fig. 10 is a side view of the rear overhang front cross member assembly of the present invention shown in fig. 9.

Fig. 11 is a top view of the hydraulic oil tank bracket of the present invention.

Fig. 12 is a front view of the hydraulic oil tank bracket of the present invention.

Fig. 13 is a front view of the rear overhang rear cross member assembly of the present invention.

Fig. 14 is a left side view of the rear overhang rear cross member assembly of the present invention.

Fig. 15 is a top view of the rear overhang rear cross member assembly of the present invention.

Fig. 16 is a front view of the cross beam of the hydraulic oil tank of the present invention.

Fig. 17 is a side view of the cross beam of the hydraulic oil tank of the present invention.

Fig. 18 is a top view of the cross beam of the hydraulic oil tank of the present invention.

Fig. 19 is a front view of the tail beam assembly of the present invention.

Fig. 20 is a side view of the tail boom assembly of the present invention.

Fig. 21 is a top view of the tail beam assembly of the present invention.

Fig. 22 is a front view of the bumper attachment bracket of the present invention.

Fig. 23 is a side view of the bumper attachment bracket of the present invention.

Fig. 24 is a front view of the fixing bracket of the shock absorber of the present invention.

Fig. 25 is a left side view of the shock absorber fixing bracket of the present invention.

Fig. 26 is the utility model discloses buffer stopper front view.

Fig. 27 is the utility model discloses buffer stopper left side view.

Fig. 28 is a partial plan view of the engine bracket of the present invention.

Fig. 29 is a left side view of the engine bracket of the present invention.

Fig. 30 is a front view of the plate spring bearing at the fixed end of the front suspension.

Fig. 31 is a left side view of the leaf spring bearing at the fixed end of the front suspension.

Fig. 32 is a front view of the leaf spring support at the lug end of the front suspension according to the present invention.

Fig. 33 is a left side view of the leaf spring support at the lug end of the front suspension according to the present invention.

Fig. 34 is a front view of the plate spring support at the fixed end of the rear suspension.

Fig. 35 is a left side view of the plate spring support at the fixed end of the rear suspension.

Fig. 36 is a front view of the leaf spring support at the lug end of the rear suspension of the present invention.

Fig. 37 is a left side view of the leaf spring support at the lug end of the rear suspension of the present invention.

Detailed Description

Specific embodiments of the present invention are described below with reference to fig. 1-37.

The following examples are provided to facilitate a better understanding of the present invention, but are not intended to limit the present invention. The following examples are only a part of the present invention, and not all of them. The components and materials used in the following examples are commercially available unless otherwise specified.

In the present invention, unless otherwise specified or limited, all terms of orientation including "upper, lower, left, right, inner, outer, top, bottom, vertical, horizontal" and the like in terms of the term are used only to indicate the orientation of the term in the conventional usage state, or to facilitate the description of the present invention and simplify the description, or to be a common term understood by those skilled in the art, and should not be construed as a limitation of the technical solution unless otherwise specified or limited.

In addition, in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "provided" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection, and a mechanical connection; may be directly connected or may be indirectly connected through other intermediate members. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention should be understood in a specific context.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein.

A height-limiting dumper frame assembly comprises a left frame longitudinal beam 1 and a right frame longitudinal beam 4, wherein a four-frame main body is enclosed by the left frame longitudinal beam 1, the right frame longitudinal beam 4, a head cross beam assembly 3 and a tail cross beam assembly 20.

The utility model discloses an improvement lies in: (as shown in fig. 1) the vertical surfaces of the front ends of the longitudinal beams of the left longitudinal beam 1 and the right longitudinal beam 4 of the frame are provided with height-reducing slope surfaces, the slope surfaces have uniform stress-reducing distribution, and the strength support is reliable. Moreover, the front end of the height-reducing slope surface is provided with a Z-shaped step type height-reducing structure, and the height is reduced again through the Z-shaped step type height-reducing structure. The Z-shaped break angle of the Z-shaped stepped height reducing structure is determined and designed according to the working condition of a specific vehicle type so as to meet the structural strength requirement and the rigidity requirement and prevent the cracking problem.

The front end of the lowest part of the Z-shaped stepped height reducing structure is vertically and fixedly connected with the head-beam assembly 3. The design for guaranteeing the height reducing structure does not influence the strength factor of the vehicle body.

(as shown in fig. 4) in the above embodiment, further: the head beam assembly 3 has a reduced height Z-shaped plate 301 and a U-shaped plate 302. Wherein one horizontal arm of the U-shaped plate 302 is used for lowering again.

The elevation-reducing turning angle of the elevation-reducing Z-shaped plate 301 is matched with the Z-shaped angle of the Z-shaped stepped elevation-reducing structure of the left and right longitudinal beams of the frame and is fixedly connected with the Z-shaped stepped elevation-reducing structure of the longitudinal beams of the frame into a whole in a welding mode. The structural support strength and rigidity of the front end of the frame are improved, and the problems of cracking and damage of the front end of the frame due to height reduction design are prevented.

(see fig. 3) wherein one of the parallel plates of the U-shaped plate 302 has an extension arm 303, the extension arm 303 is connected with the U-shaped turning point of the U-shaped plate 302 by a reinforcing rib 304. Further, the reinforcing ribs 304 are integrally formed with the U-shaped turning portions of the U-shaped plates 302 and smoothly transited to improve the structural strength of the head-rail assembly 3.

Similarly, the low-level water-lowering level body of the water-lowering Z-shaped plate 301 is provided with a widening structure 305; the height-reducing Z-shaped plate 301 is tightly pressed and fastened with the extension arm 303 of the U-shaped plate 302 up and down through the widening structure 305.

(as shown in fig. 19 and 20) the tail ends of the frame longitudinal beams are vertically fixedly connected with a tail cross beam assembly 20; the design for realizing lightweight and preventing cracking.

In the above embodiment, further: the tail beam assembly 20 is formed by splicing a channel steel III 2001 and a steel plate III 2002, the steel plate III 2002 is integrally bent into a U shape and is vertically and fixedly connected with the channel steel III 2001 into a whole, and the vertical surfaces of the left end and the right end of the steel plate III 2002 bent downwards are vertical mounting plates VI 2003 of the tail beam assembly 20.

A second beam assembly 6, an engine bracket 9, a transmission shaft hanging beam assembly 11, a hydraulic oil tank beam 12 and a rear hanging beam assembly are sequentially arranged between the head beam assembly 3 and the tail beam assembly 20 at intervals in parallel; the outer sides of the left longitudinal beam and the right longitudinal beam of the frame are provided with a plate spring support group.

In the above embodiment (as shown in fig. 1 and fig. 2), further: the rear overhang beam assembly sequentially comprises a rear overhang front beam assembly 14 and a rear overhang rear beam assembly 17.

(see fig. 1, 2) in the above embodiment, further: the plate spring support group sequentially comprises a front suspension fixed end plate spring support 5 and a front suspension lug end plate spring support 10 which are arranged at the front end of the frame longitudinal beam; the rear suspension fixed end plate spring support 15 and the rear suspension lug end plate spring support 18 are arranged at the rear end of the frame longitudinal beam; and a secondary plate spring bracket 16 is arranged on the outer side of the middle part of the frame longitudinal beam.

(as shown in fig. 9 and 10), the rear suspension front beam assembly 14 is an assembled structure formed by splicing a plurality of channel steels i, the assembled structure is made of section steel, materials are easy to obtain, the manufacturing is easy, the rear suspension front beam assembly is economical and practical, and the lightweight design of the rear suspension front beam assembly 14 is realized.

(see fig. 9) the assembly structure of the rear overhang front beam assembly 14 has two front and rear parallel horizontal beam bodies i 1401, and the left and right ends of the two horizontal beam bodies i 1401 are vertically and fixedly connected with left and right parallel installation longitudinal beams i 1402; a hydraulic oil tank bracket 13 (see figure 2) is arranged in the middle of one horizontal beam body I1401.

(see fig. 2) the oil tank is supported and mounted between the hydraulic oil tank bracket 13 and the hydraulic oil tank cross beam 12. The installation of the crossing structure supporting oil tank between the hydraulic oil tank support 13 and the hydraulic oil tank cross beam 12 is adopted, the structure is light, the support is firm and stable, and the installation space is redundant.

(as shown in fig. 12) the longitudinal section of the hydraulic oil tank bracket 13 is a Z-shaped structure, and the break angle of the Z-shaped structure is a right angle (see fig. 10). So as to improve the torsion resistance and bending resistance of the hydraulic oil tank bracket 13.

(as shown in fig. 15), the rear overhang rear cross beam assembly 17 is an H-shaped assembly structure, and has a mounting longitudinal beam ii 1701 which is made of a channel steel ii and has a trapezoidal upper horizontal surface, and the mounting longitudinal beam ii 1701 is fixedly connected with a frame longitudinal beam into a whole to form a firm supporting structure for reinforcing attachment.

The trapezoidal upper bottom edge of the mounting longitudinal beam II 1701 of the rear overhang rear cross beam assembly 17 is vertically and fixedly connected with the middle cross beam 1702 of the H-shaped assembling structure into a whole. And the upper bottom edge of the trapezoid structure is vertically and fixedly connected, the structure is stably supported, and the stress distribution is uniform.

Similarly, the rear suspension rear cross beam assembly 17 is of an H-shaped assembly structure made of profile steel, and is light in structure, firm and stable in support, abundant in installation space, easy in material obtaining, easy to manufacture, economical and practical.

(as shown in fig. 30 and 31) in the above embodiment, further: the front suspension fixed end plate spring support 5 is a casting with an h-shaped structure 501 in the longitudinal section. The light-weight design of the casting is realized at the h-shaped hollow part of the casting. Wherein the h-shaped vertical portion forms a fixed support structure. The h-shaped bottom end forms a suspended support structure.

The front suspension lug end leaf spring support 10 is a casting having an inverted F-shaped configuration 1001 in longitudinal section (as shown in fig. 32 and 33). Similarly, the hollow part of the F-shaped casting forms a light-weight design of the casting.

(see fig. 34 and 35) the rear suspension fixed end leaf spring support 15 is an integrally formed casting and has a vertical mounting plate i 1501, and the vertical mounting plate i 1501 is perpendicularly and fixedly connected with a right-angle side of angle steel 1502; the other right-angle side of angle steel 1502 is vertically and fixedly connected with a U-shaped structure I1503 with an opening facing downwards. Angle steel 1502 is added to improve structural strength.

The rear suspension lug end leaf spring support 18 (shown in fig. 36 and 37) is an integrally formed casting, and the longitudinal section of the rear suspension lug end leaf spring support is a U-shaped structure II 1801 with a downward opening. The top end of the U-shaped structure II 1801 is provided with a bulge, the bulge adopts arc transition, the stress distribution is uniform, and the structural support is reliable.

(see fig. 1, 2) in the above embodiment, further: the front end of the frame is sequentially provided with a bumper connecting bracket 2, a shock absorber fixing bracket 7 and a buffer limiting block 8; the tail end of the frame is provided with a reinforcing plate 19.

(as shown in fig. 22 and 23) in the above embodiment, further: bumper linking bridge 2 integrative the bending type is L shape, and its horizontal installation board II links firmly as an organic whole with the frame, and its vertical mounting panel III system has bumper mounting hole I201. The suspension type height-reducing support installation of the bumper is realized through the L-shaped structure of the bumper.

The damper fixing bracket 7 (as shown in fig. 24 and 25) has a right-angle mounting structure 701 formed by bending a steel plate i, which is a profile, and is easy to obtain materials and manufacture.

A triangular reinforcing rib plate 702 is arranged at a right-angle corner of the right-angle mounting structure 701; the design of the reinforcing rib plate 702 provides reliable structural support.

(as shown in fig. 26 and 27), the buffer stop block 8 is provided with a first right-angle plate 801 and a second right-angle plate 802, and the first right-angle plate 801 and the second right-angle plate 802 are welded to form a rectangular cavity; and the hollow structure is adopted to realize lightweight design.

Wherein the first straight angle plate 801 is provided with a plurality of mounting holes II 803 which are arranged in a straight line; fixed in multiple points, firm and reliable.

The reinforcing plate 19 (shown in fig. 1 and 2) is arranged in the frame tail end channel IV and reinforces the opening of the support channel IV. The reinforcing plate 19 may be made of steel in the same manner.

(as shown in fig. 5 and 6) in the above embodiment, further: the longitudinal section of the second beam assembly 6 is of a horizontally transverse U-shaped structure III, and the left end and the right end of a beam body at the top of the U-shaped horizontal beam are provided with vertical mounting plates IV 601 bent downwards. The vertical mounting plate IV 601 and the U-shaped horizontal beam top beam body are integrally formed and bent, the structural support is reliable, and the deformation prevention effect is good.

(as shown in fig. 16), the hydraulic oil tank cross beam 12 is integrally formed by a steel plate II and bent into an inverted U-shaped structure IV.

(as shown in fig. 17) the plate body of the left and right ends of the steel plate II of the hydraulic oil tank beam 12, which are bent downwards at intervals, is a mounting plate V1201, and the plate body is integrally formed and bent, so that the structural support is reliable, the deformation prevention effect is excellent (as shown in fig. 18), and the middle part of the horizontal beam body II is provided with an oil tank mounting hole III 1202. The mounting hole III 1202 is combined with a tank mounting hole of the hydraulic tank bracket 13, and the oil tank is fixedly supported and mounted in a crossing manner.

(as shown in fig. 7 and 8) in the above embodiment, further: the propeller shaft hanger beam assembly 11 has a geometric upper plate 1101 and a geometric lower plate 1102. The bending resistance and the torsion resistance are improved while the lightweight design is realized.

The upper wing plate 1101 and the lower wing plate 1102 are connected up and down through the intermediate connecting plate 1103, and the structural support strength is improved through the intermediate connecting plate 1103.

A cavity structure 1104 is formed between the intermediate connecting plate 1103 and the upper wing plate 1101; bending and torsion resistance is improved by the cavity.

The left end and the right end of the n-shaped upper wing plate 1101 are installed through an upward-bent vertical installation plate VII 1105; the upper wing 1101 of several shapes has a ridge 1106 in the middle.

(as shown in fig. 28 and 29) in the above embodiment, further: the engine bracket 9 is provided with an obtuse angle bending plate 901; the obtuse angle bending plate 901 is provided with a reinforced connecting plate 902 at the bending angle. The height-reducing installation of the engine is realized through the obtuse angle bending structure.

From the above description it can be found that: the utility model discloses the vertical face of longeron front end of the left and right longeron of frame is sampled and is fallen high domatic combination Z shape cascaded height structure and realize the design of falling of frame, both satisfied the use of traditional frame and satisfied the use of limit for height motorcycle type, the commonality ideal.

The utility model discloses take head beam assembly 3 through its extension arm 303, U-shaped board 302 strengthening rib 304, Z shaped plate 301 widen structure 305 realize its with the reliable connection that the solebar front end structure of falling is high, structural strength supports reliably, and the shape of preapring for an unfavorable turn of events, prevent that the fracture effect is good.

The utility model discloses second crossbeam assembly 6, transmission shaft hang crossbeam assembly 11, rear overhang front beam assembly 14, rear overhang rear beam assembly 17 adopt shaped steel to realize lightweight, simplification, assemble structural design, and the frame structure is rich and surplus, and the dead weight is light, realizes frame lightweight design.

To sum up, the utility model discloses the structure is brief, convenient the manufacturing, and the dead weight is light, and the space is surplus, and the commonality is good, economical and practical, energy-concerving and environment-protective.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description is described in terms of one embodiment, this embodiment does not include only a single embodiment, but such description is merely for clarity, and those skilled in the art will recognize that the embodiments described in this embodiment can be combined as appropriate to form other embodiments as would be understood by those skilled in the art.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that all equivalent changes made by the contents of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a limit for height tipper frame assembly, includes frame left side longeron (1) and frame right side longeron (4), its characterized in that: the vertical surfaces of the front ends of the longitudinal beams of the left longitudinal beam (1) and the right longitudinal beam (4) of the frame are provided with a height-reducing slope surface, the front ends of the height-reducing slope surfaces are provided with Z-shaped stepped height-reducing structures, and the front end of the lowest part of each Z-shaped stepped height-reducing structure is vertically and fixedly connected with a head beam assembly (3); the tail end of the frame longitudinal beam is vertically and fixedly connected with a tail cross beam assembly (20); a second beam assembly (6), an engine bracket (9), a transmission shaft hanging beam assembly (11), a hydraulic oil tank beam (12) and a rear suspension beam assembly are sequentially arranged between the head beam assembly (3) and the tail beam assembly (20) at intervals in parallel; the outer sides of the left longitudinal beam and the right longitudinal beam of the frame are provided with a plate spring support group.

2. The height-limited dump truck frame assembly according to claim 1, characterized in that: the rear suspension cross beam assembly sequentially comprises a rear suspension front cross beam assembly (14) and a rear suspension rear cross beam assembly (17); the rear overhang front cross beam assembly (14) is an assembly structure formed by splicing a plurality of channel steel I, the assembly structure is provided with two front and rear parallel horizontal beam bodies I (1401), and the left end and the right end of each horizontal beam body I (1401) are vertically and fixedly connected with a left and right parallel installation longitudinal beam I (1402); a hydraulic oil tank bracket (13) is arranged in the middle of one horizontal beam body I (1401); an oil tank is supported and installed between the hydraulic oil tank support (13) and the hydraulic oil tank cross beam (12); the longitudinal section of the hydraulic oil tank support (13) is of a Z-shaped structure, and the break angle of the Z-shaped structure is a right angle; the rear overhang rear cross beam assembly (17) is of an H-shaped assembling structure, and is provided with a mounting longitudinal beam II (1701) which is made of channel steel II and has a trapezoidal upper horizontal surface, and the trapezoidal upper bottom edge of the mounting longitudinal beam II (1701) is vertically and fixedly connected with a middle cross beam (1702) of the H-shaped assembling structure into a whole.

3. The height-limited dump truck frame assembly according to claim 1, characterized in that: the plate spring support group sequentially comprises a front suspension fixed end plate spring support (5) and a front suspension lug end plate spring support (10) which are arranged at the front end of the frame longitudinal beam; the rear suspension frame is characterized by also comprising a rear suspension frame fixed end leaf spring support (15) and a rear suspension frame lug end leaf spring support (18) which are arranged at the rear end of the frame longitudinal beam; and a secondary plate spring bracket (16) is arranged on the outer side of the middle part of the frame longitudinal beam.

4. The height-limited dump truck frame assembly according to claim 3, characterized in that: the front suspension fixed end plate spring support (5) is a casting with an h-shaped structure (501) on the longitudinal section; the plate spring support (10) at the end of the front suspension lug is a casting with an inverted F-shaped structure (1001) on the longitudinal section; the rear suspension fixed end plate spring support (15) is an integrally formed casting and is provided with a vertical mounting plate I (1501), and the vertical mounting plate I (1501) is vertically and fixedly connected with a right-angle side of an angle steel (1502); the other right-angle side of the angle steel (1502) is vertically and fixedly connected with a U-shaped structure I (1503) with a downward opening; the rear suspension lug end plate spring support (18) is an integrally formed casting, and the longitudinal section of the rear suspension lug end plate spring support is of a U-shaped structure II (1801) with a downward opening.

5. The height-limited dump truck frame assembly according to claim 1, characterized in that: the front end of the frame is sequentially provided with a bumper connecting bracket (2), a shock absorber fixing bracket (7) and a buffer limiting block (8); the tail end of the frame is provided with a reinforcing plate (19).

6. The height-limited dump truck frame assembly according to claim 5, characterized in that: the bumper connecting bracket (2) is integrally bent into an L shape, a horizontal mounting plate II of the bumper connecting bracket is fixedly connected with the frame into a whole, and a vertical mounting plate III of the bumper connecting bracket is provided with a bumper mounting hole I (201); the shock absorber fixing support (7) is provided with a right-angle mounting structure (701) formed by bending a steel plate I, and a triangular reinforcing rib plate (702) is arranged at a right-angle folding angle of the right-angle mounting structure (701); the buffer limiting block (8) is provided with a first right-angle plate (801) and a second right-angle plate (802), and the first right-angle plate (801) and the second right-angle plate (802) are welded to form a rectangular cavity; wherein the first straight angle plate (801) is provided with a plurality of mounting holes II (803) which are arranged in a straight line; the reinforcing plate (19) is arranged in the frame tail end channel IV and reinforces an opening of the support channel IV.

7. The height-limited dump truck frame assembly according to claim 1, characterized in that: the head and beam assembly (3) is provided with a height-reducing Z-shaped plate (301) and a U-shaped plate (302); one of the parallel plate bodies of the U-shaped plate (302) is provided with an extension arm (303), and the extension arm (303) and the U-shaped turning part of the U-shaped plate (302) are connected into a whole through a reinforcing rib (304); the bevel angle at the height-reducing turning position of the height-reducing Z-shaped plate (301) is matched with the Z-shaped bevel angle of the Z-shaped stepped height-reducing structure of the left longitudinal beam and the right longitudinal beam of the frame; the low-level water-lowering plate body of the height-lowering Z-shaped plate (301) is provided with a widened structure (305); the height-reducing Z-shaped plate (301) is vertically pressed and fastened with the plate body of the extension arm (303) of the U-shaped plate (302) into a whole through the widening structure (305).

8. The height-limited dump truck frame assembly according to claim 1, characterized in that: the longitudinal section of the second beam assembly (6) is of a horizontally transverse U-shaped structure III, and the left end and the right end of a beam body at the top of the U-shaped horizontal beam are provided with vertical mounting plates IV (601) bent downwards; the hydraulic oil tank cross beam (12) is integrally formed by a steel plate II and bent into an inverted U-shaped structure IV, the left end and the right end of the hydraulic oil tank cross beam are vertically bent downwards at intervals to form a mounting plate V (1201), and the middle part of a horizontal beam body II is provided with an oil tank mounting hole III (1202); the tail beam assembly (20) is formed by splicing a channel steel III (2001) and a steel plate III (2002), the steel plate III (2002) is integrally bent into a U shape and is fixedly connected with the channel steel III (2001) into a whole up and down, and the vertical surface of the left end and the right end of the steel plate III (2002) bent downwards is a vertical mounting plate VI (2003) of the tail beam assembly (20).

9. The height-limited dump truck frame assembly according to claim 1, characterized in that: the transmission shaft hanging beam assembly (11) is provided with a n-shaped upper wing plate (1101) and a n-shaped lower wing plate (1102), the n-shaped upper wing plate (1101) and the n-shaped lower wing plate (1102) are connected up and down through a middle connecting plate (1103), and a cavity structure (1104) is formed between the middle connecting plate (1103) and the n-shaped upper wing plate (1101); the left end and the right end of the n-shaped upper wing plate (1101) are installed through a vertical installation plate VII (1105); the middle part of the n-shaped upper wing plate (1101) is provided with a bulge (1106).

10. The height-limited dump truck frame assembly according to claim 1, characterized in that: the engine bracket (9) is provided with an obtuse angle bending plate (901); and a reinforcing connecting plate (902) is arranged at the break angle of the obtuse angle break angle bending plate (901).

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