Frame of off-highway mining dump truck

Abstract

The utility model discloses an off-highway mining dump truck frame, which comprises a frame body, a front end beam, a rear end beam, a front end beam and a rear end beam, the left front overhang longitudinal pushing support is fixed on the lower wing surface of the left front end beam, the right front overhang longitudinal pushing support is fixed on the lower wing surface of the right front end beam, and the left front overhang longitudinal pushing support and the right front overhang longitudinal pushing support are fixedly connected through a front tubular beam. The frame can bear large bending load, torsion load and impact load, and a power assembly and a rear suspension can be arranged conveniently.

Description

TECHNICAL FIELD

[0001] The utility model belongs to engineering machinery and transportation technical field, more specifically, the utility model relates to a non -highway mining dump truck frame. BACKGROUND

[0002] The non -highway dump truck is a kind of self-unloading transport tool for mine, water conservancy and hydropower engineering etc. non -highway or bad road environment, it has the work characteristics such as loading and unloading, carrying heavy, short haul, continuous turn back cycle operation etc. Non -highway transport road condition is bad, like spiral pit and hole road, the use condition and stress of non -highway dump truck frame are extremely harsh. At present, non -highway dump truck frame is mainly divided into bolted type and welded type, bolted type frame is connected by channel beam and reinforcing plate using bolt, has the characteristics such as detachability, design flexibility, but life and upper limit of carrying are low;Welded frame adopts cast-weld combined structure, cast-weld combined frame is high in strength, but casting defects are difficult to control, and production cycle is long, cost increases, frame is heavy, and it is difficult to guarantee size tolerance and position precision. Therefore, a non -highway dump truck frame is needed, which can solve the above problems. SUMMARY

[0003] The utility model provides a non -highway mining dump truck frame, it can bear greater bending load, torsional load and impact load, also be convenient for arranging power assembly and rear suspension.

[0004] In order to realize the utility model's these objects and other advantages, the utility model provides a non -highway mining dump truck frame, including:

[0005] Frame body, it includes left front end beam and right front end beam;

[0006] Left front suspension longitudinal push bearing and right front suspension longitudinal push bearing, the left front suspension longitudinal push bearing is fixed on the lower surface of the left front end beam, the right front suspension longitudinal push bearing is fixed on the lower surface of the right front end beam, the left front suspension longitudinal push bearing and the right front suspension longitudinal push bearing are fixedly connected through front pipe beam.

[0007] Preferably, the left front suspension longitudinal push bearing is fixedly connected with the outer side plate of the left front end beam through left triangular box, and the right front suspension longitudinal push bearing is fixedly connected with the outer side plate of the right front end beam through right triangular box.

[0008] Preferably, the left triangular box and the right triangular box are both right-angled triangles, and two right-angle surfaces formed by the left triangular box and the left front suspension longitudinal push bearing and two right-angle surfaces formed by the right triangular box and the right front suspension longitudinal push bearing are fixedly connected with the outer side plate and the lower surface of the left front end beam and the right front end beam respectively, to form a closed structure with the left front end beam and the right front end beam.

[0009] Preferably, the left front end beam and the right front end beam are both box structures formed by splicing multi-directional bent plates, upper surfaces of the box structures are gradually inclined and bent upward from front to back, and inner side plates and outer side plates of the box structures are both bent outward at front ends.

[0010] Preferably, the multi-directional bent plate has a bending angle of 18°-25°.

[0011] Preferably, the vehicle frame body further comprises:

[0012] a front bumper, two ends of which are fixedly connected with one end of the left front end beam and one end of the right front end beam, respectively;

[0013] a left longitudinal beam and a right longitudinal beam, one end of the left longitudinal beam is fixedly connected with the other end of the left front end beam, and one end of the right longitudinal beam is fixedly connected with the other end of the right front end beam;

[0014] a ring beam, which is fixedly arranged at a connection position of the left front end beam and the right front end beam with the left longitudinal beam and the right longitudinal beam.

[0015] Preferably, the vehicle frame body further comprises a lifting beam, which is arranged behind the ring beam and is fixedly connected with lower wing surfaces of the left longitudinal beam and the right longitudinal beam.

[0016] The left longitudinal beam and the right longitudinal beam are fixedly connected with a torsion beam above the lifting beam.

[0017] Preferably, the vehicle frame body further comprises:

[0018] a middle bridge reinforcing beam, a left middle bridge suspension lever support and a right middle bridge suspension lever support, the middle bridge reinforcing beam is arranged behind the lifting beam and is fixedly connected with the left longitudinal beam and the right longitudinal beam;

[0019] outer side plates of the left longitudinal beam and the right longitudinal beam are fixedly connected with the left middle bridge suspension lever support and the right middle bridge suspension lever support, respectively;

[0020] Preferably, the middle bridge reinforcing beam is covered with a first protective shell.

[0021] Preferably, the vehicle frame body further comprises:

[0022] a rear bridge reinforcing beam, a left rear bridge suspension lever support and a right rear bridge suspension lever support, the rear bridge reinforcing beam is arranged behind the middle bridge reinforcing beam and is fixedly connected with the left longitudinal beam and the right longitudinal beam;

[0023] The left rear axle suspension lever support and the right rear axle suspension lever support are fixedly connected with the outer side plates of the left longitudinal beam and the right longitudinal beam at the positions of the two ends of the rear axle reinforcing beam.

[0024] The rear axle reinforcing beam is covered with a second protective shell in a semi-open shell shape.

[0025] Preferably, the second protective shell is an integral multi-channel bent plate, wherein a groove (1702) is arranged on the edge of the free end (1701) of the integral multi-channel bent plate.

[0026] Preferably, the vehicle frame body further comprises a rear bumper assembly fixedly connected with the tail portions of the left longitudinal beam and the right longitudinal beam.

[0027] The utility model at least has following beneficial effects:

[0028] First, in the utility model, the front bumper is arranged at the most front end, the left front end beam and the left longitudinal beam are connected through the front and rear through connection structure between the right front end beam and the right longitudinal beam, the main plate material is inserted and welded after being inserted, the rigidity of the whole vehicle frame is improved, the vehicle frame can bear larger bending load, torsional load and impact load. The left front end beam and the right front end beam are both box structure formed by splicing multi-directional bent plates, the upper surface of the box structure is gradually inclined and bent upwards from front to back, and the inner side plate and the outer side plate of the box structure are both bent outwards at the front end. The purpose of bending the front end beam is to adapt different models of power assemblies and cooling systems according to requirements, and the front end beam is bent only once, that is, the left front end beam and the right front end beam are both bent outwards, the space between the left front end beam and the right front end beam is enlarged, the process is simpler, the space is larger, and the power assembly is more convenient to arrange. The main longitudinal beam, that is, the left longitudinal beam and the right longitudinal beam, is designed in equal size of cross section width, and especially the cross section height is gradually changed, so that the rigidity is not suddenly changed, and the reliability of the vehicle frame is improved.

[0029] Second, the left front end beam and the right front end beam are fixedly connected with the left front suspension longitudinal push support and the right front suspension longitudinal push support on the lower wing surfaces respectively, the left front suspension longitudinal push support and the right front suspension longitudinal push support are fixedly connected through the front pipe beam, the bending and torsional rigidity of the front part of the vehicle frame is increased. The left front suspension longitudinal push support is fixedly connected with the outer side plate of the left front end beam through the left triangular box, and the right front suspension longitudinal push support is fixedly connected with the outer side plate of the right front end beam through the right triangular box, so that the front suspension longitudinal push support is connected with the front end beam in a closed mode, the welding of the plate and the square pipe is simple in process and high in structural strength.

[0030] Third, the rear axle reinforcing beam is covered with a second shell, and the second shell is a semi-open shell, the second shell is simple in process, and the tail of the frame is closed, the bending and torsion resistance of the tail beam of the frame is enhanced, the front of the second shell is open, the internal space of the frame is saved, and the rear suspension is arranged more reasonably.

[0031] Other advantages, objects and features of the present application will be in part apparent and in part pointed out hereinafter by way of illustration and exemplification. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 The figure is a structural schematic view of the off-highway mining dump truck frame in the present application.

[0033] Figure 2 The figure is a structural schematic view of the second shell in the present application.

[0034] Reference signs: 1, front bumper, 2, left front end beam, 3, right front end beam, 4, front tube beam, 5, left front suspension longitudinal push bearing, 6, right front suspension longitudinal push bearing, 7, ring beam, 8, left longitudinal beam, 9, right longitudinal beam, 10, torsion beam, 11, lifting beam, 12, right middle axle suspension beam bearing, 13, left middle axle suspension beam bearing, 14, first shell, 15, right rear axle suspension beam bearing, 16, left rear axle suspension beam bearing, 17, second shell, 18, rear bumper assembly, 1701, free end, 1702, groove, 19, left triangular box. DETAILED DESCRIPTION

[0035] The present application will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can implement it according to the description.

[0036] It should be understood that the terms such as "have", "contain" and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0037] It should be noted that the experimental methods in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial channels unless otherwise specified. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "arrangement" should be understood in a broad sense. For example, it can be fixedly connected, arranged, or detachably connected, arranged, or integrally connected, arranged. For ordinary skilled persons in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. The orientations or positional relationships indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only intended to facilitate the description of the present application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0038] As shown in Figure 1 The utility model provides a kind of off-highway mining dump truck frame, comprising: frame body, it includes left front end beam 2 and right front end beam 3;Left front suspension push bearing 5 and right front suspension push bearing 6, the left front suspension push bearing 5 is fixed on the lower surface of the left front end beam 2, the right front suspension push bearing 6 is fixed on the lower surface of the right front end beam 3, the left front suspension push bearing 5 and the right front suspension push bearing 6 are fixedly connected by front tube beam 4.

[0039] In the above embodiment, the lower surface of the left front end beam 2 and the right front end beam 3 is fixedly connected with the left front suspension push bearing 5 and the right front suspension push bearing 6 respectively, and the left front suspension push bearing 5 and the right front suspension push bearing 6 are fixedly connected by the front tube beam 4. By such arrangement, the bending and torsional stiffness of the front part of the frame body is increased.

[0040] In one specific embodiment, the left front suspension push bearing 5 is fixedly connected with the outer side plate of the left front end beam 2 through a left triangular box 19, and the right front suspension push bearing 6 is fixedly connected with the outer side plate of the right front end beam 3 through a right triangular box.

[0041] In one specific embodiment, the left front suspension push bearing 5 is fixedly connected with the outer side plate of the left front end beam 2 through a left triangular box 19, and the right front suspension push bearing 6 is fixedly connected with the outer side plate of the right front end beam 3 through a right triangular box.

[0042] In the above embodiments, specifically, both the left front suspension longitudinal thrust support 5 and the right front suspension longitudinal thrust support 6 are U-shaped. For example, they can be two vertically placed parallel plates with a horizontal plate welded between them. In this embodiment, the horizontal plate can be two pieces, with a triangular box fixedly mounted on the uppermost horizontal plate. The right-angled surfaces of the left triangular box and the top surface of the left front suspension longitudinal thrust support 5 form two right-angled surfaces, which are fixedly connected to the outer side plate and lower wing surface of the left front beam 2. Similarly, the right-angled surfaces of the right triangular box and the top surface of the right front suspension longitudinal thrust support 6 form two right-angled surfaces, which are fixedly connected to the outer side plate and lower wing surface of the right front beam 3. This ensures that the left front suspension longitudinal thrust support 5 and the left front beam 2, and the right front suspension longitudinal thrust support 6 and the right front beam 3 form a closed structure with high structural strength.

[0043] In one specific embodiment, the left front beam 2 and the right front beam 3 are both box structures formed by splicing multi-directional bending plates. The upper surface of the box structure gradually bends upward from front to back, and the front ends of the inner and outer side plates of the box structure are bent outward.

[0044] The bending angle of the multi-directional bending plate is between 18° and 25°.

[0045] In the above embodiment, the box structure formed by splicing multi-directional bent plates can be configured as follows: On the upper surface, from front to back, are a first plate, a second plate, and a third plate, with the second plate bent at an angle; on the inner side, from front to back, are a first side plate and a second side plate; on the outer side, from front to back, are a third side plate and a fourth side plate, with an angle between the first and second side plates and an angle between the third and fourth side plates; the left front beam 2 and the right front beam 3 point towards the front bumper 1 in the forward direction. The second and fourth side plates of the left front beam 2 are welded to the left longitudinal beam 8, and the second and fourth side plates of the right front beam 3 are welded to the right longitudinal beam 9. The purpose of setting the left front beam 2 and the right front beam 3 as bent is to enable the dump truck frame to be adapted to different models of powertrain and cooling system according to needs. Moreover, the left front beam 2 and the right front beam 3 are bent only once and then bent outwards, which expands the space between the left front beam 2 and the right front beam 3. From a manufacturing point of view, it is simpler and has a larger capacity, making it easier to arrange the powertrain.

[0046] In one specific embodiment, the frame body further includes:

[0047] The front bumper 1 is fixedly connected at both ends to one end of the left front beam 2 and the right front beam 3, respectively;

[0048] Left longitudinal beam 8 and right longitudinal beam 9, one end of the left longitudinal beam 8 is fixedly connected to the other end of the left front beam 2, and one end of the right longitudinal beam 9 is fixedly connected to the other end of the right front beam 3;

[0049] The ring beam 7 is fixedly installed at the connection between the left front beam 2 and the right front beam 3 and the left longitudinal beam 8 and the right longitudinal beam 9.

[0050] In the above embodiments, such as Figure 1 As shown, the arrow points forward. The front bumper 1 is located at the very front of the frame, and a front beam (left front beam 2 and right front beam 3), a ring beam 7, and main longitudinal beams (left longitudinal beam 8 and right longitudinal beam 9) are arranged rearward. The front beams are connected to the main longitudinal beams and the front bumper 1. The left front beam 2 and left longitudinal beam 8, and the right front beam 3 and right longitudinal beam 9 are connected by a continuous front-to-rear structure. The main plates are inserted and then welded, improving the overall frame rigidity and enabling it to withstand larger bending, torsional, and impact loads. Furthermore, the main longitudinal beams have equal cross-sectional widths, and especially the cross-sectional height uses a gradual transition, further enhancing the overall frame rigidity and avoiding the risk of sudden stiffness changes, thus improving frame reliability. It should also be noted that in this embodiment, left and right refer to the direction of the face and the surrounding area. Figure 1 When the arrows in the diagrams point in the same direction, the left and right sides are considered. The ring beam 7 is located near the front overhang and serves as a reinforcement point for the overall rigidity and strength of the vehicle frame. The middle section and lower ring of the ring beam 7 are welded to the outer surface and lower wing surface of the left longitudinal beam 8 and the right longitudinal beam 9.

[0051] In one specific embodiment, the frame body further includes a lifting beam 11, which is disposed behind the ring beam 7, and the lifting beam 11 is fixedly connected to the lower flange of the left longitudinal beam 8 and the right longitudinal beam 9.

[0052] Above the lifting beam 11, the left longitudinal beam 8 and the right longitudinal beam 9 are fixedly connected to the anti-torsion beam 10.

[0053] In the above embodiment, an anti-torsion beam 10 is arranged on the upper part of the lifting beam 11 to improve the bending and torsional stiffness of the middle of the frame. A power suspension bracket can be arranged between the anti-torsion beam 10 and the front bumper 1, and welded to the inner side of the left longitudinal beam 8 and the right longitudinal beam 9 of the frame.

[0054] In one specific embodiment, the frame body further includes:

[0055] The middle bridge reinforcing beam, the left middle bridge suspension bar support 13, and the right middle bridge suspension bar support 12 are provided. The middle bridge reinforcing beam is located behind the lifting beam 11 and is fixedly connected to the left longitudinal beam 8 and the right longitudinal beam 9.

[0056] The left side plate of the left longitudinal beam 8 and the right side plate of the right longitudinal beam 9 are fixedly connected with the left middle bridge suspension lever support 13 and the right middle bridge suspension lever support 12 respectively at the positions of the two ends of the middle bridge reinforcing beam.

[0057] The middle bridge reinforcing beam is covered with a first protective shell 14.

[0058] In the above embodiment, the first protective shell 14 is an integrated two-way or three-way bent plate, which is covered on the middle bridge reinforcing beam. The two ends of the first protective shell 14 are fixed on the inner side plates of the left longitudinal beam 8 and the right longitudinal beam 9 respectively.

[0059] In one specific embodiment, the vehicle frame body further comprises:

[0060] A rear bridge reinforcing beam, a left rear bridge suspension lever support 16 and a right rear bridge suspension lever support 15, the rear bridge reinforcing beam is arranged behind the middle bridge reinforcing beam, and the rear bridge reinforcing beam is fixedly connected with the left longitudinal beam 8 and the right longitudinal beam 9.

[0061] The left side plate of the left longitudinal beam 8 and the right side plate of the right longitudinal beam 9 are fixedly connected with the left rear bridge suspension lever support 16 and the right rear bridge suspension lever support 15 respectively at the positions of the two ends of the rear bridge reinforcing beam.

[0062] The rear bridge reinforcing beam is covered with a second protective shell 17, and the second protective shell 17 is in a semi-open shell shape.

[0063] In the above embodiment, the second protective shell is an integrated multi-way bent plate, and a groove 1702 is arranged on the edge of the free end 1701 of the integrated multi-way bent plate. For example, the second protective shell 17 is an integrated four-way bent plate, as shown in the figure. Figure 2 The number of bent ways of the bent plate is not specifically limited in the embodiment, and can be specifically limited according to actual conditions. The multi-way bent plate has a simple process and can close the tail of the vehicle frame, thereby enhancing the bending and torsion resistance of the tail beam of the vehicle frame. The front part of the second protective shell 17 is open, thereby saving the internal space of the vehicle frame and making the rear suspension arrangement more reasonable. The purpose of such arrangement is that in the prior art, the rear bridge reinforcing beam is either a simple pipe beam structure or a closed box structure. The simple pipe beam structure leads to insufficient protection of the rear bridge reinforcing beam and easy breakage. The closed box structure leads to small space in the box and makes it difficult to arrange or inconvenient to maintain the horizontal push support. The design of the embodiment not only makes the horizontal push support arrangement convenient, but also reduces the risk of excessive stress and tearing in the recessed part, thereby increasing the strength and reducing the weight.

[0064] In one specific embodiment, the vehicle frame body further comprises a rear bumper assembly 18, which is fixedly connected with the tail parts of the left longitudinal beam 8 and the right longitudinal beam 9.

[0065] The number of devices and the size of the processes described herein are intended to be illustrative only. Applications, modifications, and variations of the present application that are obvious to those of ordinary skill in the art are intended to be within the scope of the present application.

[0066] While the embodiments of the application have been disclosed in connection with the explicitly set forth herein, they are not intended to be limited to the specific form set forth herein, but on the contrary, it is intended to cover such alternatives, modifications, and equivalents, as can be within the scope of the application, which is defined by the appended claims, and their equivalents.

Claims

1. Off-highway mining dump truck frame, characterized in that, Comprise: Frame body, including left front end beam and right front end beam; Left front suspension longitudinal push support and right front suspension longitudinal push support, the left front suspension longitudinal push support is fixed on the lower wing surface of the left front end beam, the right front suspension longitudinal push support is fixed on the lower wing surface of the right front end beam, the left front suspension longitudinal push support and the right front suspension longitudinal push support are fixedly connected through front tube beam.

2. The off-highway mining dump truck frame of claim 1, wherein, The left front suspension longitudinal push support is fixedly connected with the outer side plate of the left front end beam through left triangular box, and the right front suspension longitudinal push support is fixedly connected with the outer side plate of the right front end beam through right triangular box.

3. The off-highway mining dump truck frame of claim 2, wherein, The left triangular box and the right triangular box are both right-angled triangles, and two right angle surfaces formed by the left triangular box and the left front suspension longitudinal push support and two right angle surfaces formed by the right triangular box and the right front suspension longitudinal push support are respectively fixedly connected with the outer side plate and the lower wing surface of the left front end beam and the right front end beam, so as to form a closed structure with the left front end beam and the right front end beam.

4. The off-highway mining dump truck frame of claim 1, wherein, The left front end beam and the right front end beam are both box structure formed by splicing multi-directional bent plates, the upper surface of the box structure is gradually inclined and bent upward from front to back, and the inner side plate and the outer side plate of the box structure are both outwardly bent at the front end. Wherein, the bending angle of the multi-directional bent plate is between 18°-25°.

5. The off-highway mining dump truck frame of claim 1, wherein, The frame body further comprises: Front bumper, both ends of which are respectively fixedly connected with one end of the left front end beam and the right front end beam; Left longitudinal beam and right longitudinal beam, one end of the left longitudinal beam is fixedly connected with the other end of the left front end beam, and one end of the right longitudinal beam is fixedly connected with the other end of the right front end beam; Ring beam, which is fixedly arranged at the connection between the left front end beam and the right front end beam and the left longitudinal beam and the right longitudinal beam.

6. The off-highway mining dump truck frame of claim 5, wherein, The frame body further comprises lifting beam, which is arranged behind the ring beam and is fixedly connected with the lower wing surface of the left longitudinal beam and the right longitudinal beam; Above the lifting beam, the left longitudinal beam and the right longitudinal beam are fixedly connected with the torsion beam.

7. The off-highway mining dump truck frame of claim 5, wherein, The frame body further comprises: Middle bridge reinforcing beam, left middle bridge suspension lever support and right middle bridge suspension lever support, the middle bridge reinforcing beam is arranged behind the lifting beam and is fixedly connected with the left longitudinal beam and the right longitudinal beam; The outer side plate of the left longitudinal beam and the outer side plate of the right longitudinal beam are respectively fixedly connected with the left middle bridge suspension lever support and the right middle bridge suspension lever support at both end positions of the middle bridge reinforcing beam; Wherein, the middle bridge reinforcing beam is covered with a first protective shell.

8. The off-highway mining dump truck frame of claim 5, wherein, The frame body further comprises: Rear bridge reinforcing beam, left rear bridge suspension lever support and right rear bridge suspension lever support, the rear bridge reinforcing beam is arranged behind the middle bridge reinforcing beam and is fixedly connected with the left longitudinal beam and the right longitudinal beam; The outer side plate of the left longitudinal beam and the outer side plate of the right longitudinal beam are respectively fixedly connected with the left rear bridge suspension lever support and the right rear bridge suspension lever support at both end positions of the rear bridge reinforcing beam; Wherein, the rear bridge reinforcing beam is covered with a second protective shell, and the second protective shell is in the shape of a semi-open shell.

9. The off-highway mining dump truck frame of claim 8, wherein, The second protective shell is an integral multi-channel bent plate, wherein a groove (1702) is arranged on the edge of the free end (1701) of the integral multi-channel bent plate.

10. The off-highway mining dump truck frame of claim 5, wherein, The frame body further comprises a rear bumper assembly fixedly connected with tail portions of the left and right longitudinal beams.

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