CN105882752B - A kind of four bridge heavy duty dump truck vehicle frame combined structures of integral structure - Google Patents

Abstract

An integrated four-axle heavy-duty dump truck frame composite structure, the composite structure includes a frame and a sub-frame, the left longitudinal beam of the frame is pressed into a groove shape with a girder steel plate, the front and rear sections of the left longitudinal beam of the frame are The outer side is not in a plane, and the right longitudinal beam of the vehicle frame is also pressed and formed with a large beam steel plate, which is symmetrical with the left longitudinal beam of the vehicle frame. This integrated four-axle heavy-duty dump truck frame combination structure can not only realize the function of the ordinary truck frame, but also realize the function of the sub-frame of the dump truck. It makes full use of both the frame and the sub-frame. The advantages of the integrated structure, under the premise of ensuring sufficient strength and rigidity, can use less materials, reduce the overall quality of the vehicle, make it have a lower production cost, and benefit from the economy of use, and can be widely used For four-axle heavy-duty dump trucks.

Description

An integrated four-axle heavy-duty dump truck frame composite structure

technical field

The invention relates to the technical field of dump truck manufacturing, in particular to an integrated four-axle heavy dump truck frame assembly structure.

Background technique

Present dump truck is generally all provided with auxiliary frame on vehicle frame, is used for installing cargo box lifting oil cylinder, cargo box overturning shaft support and the longitudinal beam of supporting cargo box. Since the frame and sub-frame are manufactured separately, the advantages of the integrated structure of the two are not fully utilized. To ensure sufficient strength and rigidity, more materials with a certain quality must be used to manufacture the frame and sub-frame, so that It has a higher production cost, and because it increases the curb weight of the vehicle, it is not conducive to the economy of use. Especially for the four-axle heavy-duty dump truck, the above-mentioned problems will be more prominent.

Contents of the invention

In order to overcome the above-mentioned problems in the prior art, the present invention proposes an integrated four-axle heavy-duty dump truck frame assembly structure.

The combined structure of the four-axle heavy-duty dump truck frame of the integrated structure provided by the present invention adopts the following technical scheme:

An integrated four-axle heavy-duty dump truck frame composite structure, the composite structure includes a frame and a sub-frame, the left longitudinal beam of the frame is pressed into a groove shape with a girder steel plate, the front and rear sections of the left longitudinal beam of the frame are The outer side is not in a plane, and the right longitudinal beam of the vehicle frame is also pressed and formed with a large beam steel plate, which is symmetrical with the left longitudinal beam of the vehicle frame.

Furthermore, the left longitudinal beam of the sub-frame is assembled and welded by the left inner panel stamped into an L shape after blanking with a steel plate and the left outer panel stamped into an L shape after blanking with a steel plate, and the cross section of the welded part is box-shaped , the protruding edge of the lower part of the left outer panel is used to connect with the left longitudinal beam of the vehicle frame.

Furthermore, the right longitudinal beam of the sub-frame is symmetrical to the left longitudinal beam of the sub-frame, and is assembled and welded by the right inner panel stamped into an L shape after blanking with a steel plate and the right outer panel stamped into an L shape after blanking with a steel plate .

Further, on the left longitudinal beam of the frame and the right longitudinal beam of the frame, the common parts of the automobile frame are connected with rivets from front to back: a front suspension bracket of the engine and a leaf spring of the first axle suspension Support and the first crossbeam assembly, one engine rear suspension left bracket, one engine rear suspension right bracket, one left first axle suspension steel plate lug support and second axle suspension leaf spring support assembly , one piece of right first bridge suspension steel plate hanger support and second bridge suspension steel plate spring support assembly, two second bridge suspension steel plate hanger support, two transmission shaft support beam connecting plates, one Drive shaft support crossbeam, two pieces of rear suspension front reinforcement crossbeam connection plate, two rear suspension front reinforcement crossbeams, two rear balance suspension reinforcement crossbeam connection plates, two rear balance suspension reinforcement crossbeams, one frame rear beam.

Further, weld a transmission shaft intermediate support bracket on the rear vertical surface of the transmission shaft support beam; rivet a rear balance suspension side connecting plate on the rear outer side of the left longitudinal beam of the vehicle frame and the right longitudinal beam of the vehicle frame respectively ; A rear balance suspension support is respectively installed at the rear lower part of the left longitudinal beam of the vehicle frame and the right longitudinal beam of the vehicle frame.

Further, weld a front straight-top hydraulic cylinder bracket to strengthen the connecting support on the front part of the left outer panel of the left longitudinal beam of the subframe and the outer surface of the front part of the right outer panel of the right longitudinal beam of the subframe; On the front part of the left outer panel of the longitudinal beam, the upper plane of the front part of the right outer panel of the right longitudinal beam of the sub-frame, and the upper plane of the two front straight top hydraulic cylinder support reinforcement connection supports, a front straight top hydraulic cylinder support assembly is welded.

Further, on the left longitudinal beam of the sub-frame and the right longitudinal beam of the sub-frame, the common parts of the sub-frame of the dump truck are connected by welding from front to back: two sub-frames made of channel steel. The frame cross beam, two hydraulic oil tank support cross beams stamped into an L-shape after being blanked with steel plates, one sub-frame cross beam, and one piece of flip shaft support support beams punched into an L-shaped section after blanking with steel plates.

Further, an upper reinforced connection box is respectively welded on the supporting crossbeam of the overturning axle support, the left outer plate of the left longitudinal beam of the subframe and the right outer plate of the right longitudinal beam of the subframe; A lower reinforced connection box is respectively welded at both ends of the plane; four pieces of overturned shaft supports are welded on the support beam of the overturned shaft support.

Further, the sub-frame assembly is hoisted on the vehicle frame, and the protruding edge of the lower part of the left outer plate of the sub-frame and the protruding edge of the lower part of the right outer plate of the sub-frame and the outer surface of the left longitudinal beam of the frame, The outer side of the right longitudinal beam of the frame is riveted with rivets; the lower reinforced connection box at both ends of the lower plane of the support beam supported by the overturning shaft support is respectively connected with the outer side of the left longitudinal beam of the frame and the outer side of the right longitudinal beam of the frame by six bolts and self-locking nuts. connect.

This integrated four-axle heavy-duty dump truck frame combination structure can not only realize the function of the ordinary truck frame, but also realize the function of the sub-frame of the dump truck. It makes full use of both the frame and the sub-frame. The advantages of the integrated structure, under the premise of ensuring sufficient strength and rigidity, can use less materials, reduce the overall quality of the vehicle, make it have lower production costs, and benefit from the economy of use, and can be widely used For four-axle heavy-duty dump trucks.

Description of drawings

Fig. 1 is the left side view of the overall structure schematic diagram of the present invention, promptly presses the automobile advancing direction, the view that projects from left to right and obtains.

Fig. 2 is a top view of the general structural diagram of the present invention.

Fig. 3 is an A-A sectional view of Fig. 1 in the present invention.

Fig. 4 is a B-B sectional view of Fig. 1 in the present invention.

Fig. 5 is a C-C sectional view of Fig. 2 in the present invention.

The labels in Figures 1 to 5 are: 1-the left longitudinal beam of the vehicle frame, 2-the engine front suspension bracket and the first bridge suspension leaf spring support and the first beam assembly, 3-the left first bridge suspension steel plate crane Ear support and second axle suspension leaf spring support assembly, 4-front straight top hydraulic cylinder support assembly, 5-front straight top hydraulic cylinder support reinforcement connection support, 6-left outer plate, 7-second bridge Suspension steel plate lug support, 8-upper reinforced connection box, 9-overturn shaft support supporting beam, 10-overturn shaft support, 11-lower reinforced connection box, 12-bolt, 13-self-locking nut, 14- Frame rear beam, 15-rivets, 16-rear balance suspension side connecting plate, 17-rear balance suspension support, 18-rear balance suspension reinforcement beam, 19-rear balance suspension reinforcement beam connection plate, 20- Hydraulic oil tank support beam, 21-rear suspension front reinforcement beam connecting plate, 22-rear suspension front reinforcement beam, 23-subframe beam, 24-transmission shaft support beam connection plate, 25-transmission shaft middle support bracket, 26 -Transmission shaft support beam, 27-right outer panel, 28-right longitudinal beam of frame, 29-right bracket of engine rear suspension, 30-left bracket of engine rear suspension, 31-right first axle suspension steel plate hanger Seat and the second axle suspension leaf spring bearing assembly, 32-right inner board, 33-left inner board.

Detailed ways

A detailed description will be given below in conjunction with the accompanying drawings.

As shown in Figures 1 to 5, the parts that need to be installed on the vehicle frame - the rear balance suspension support 17 is represented by a double-dot dash line, and is processed in a transparent shape. In the four-axle heavy-duty dump truck frame and sub-frame of the integrated structure provided by the present invention, the left longitudinal beam 1 of the vehicle frame is pressed into a groove shape with a special girder steel plate, and the outer sides of the front section and the rear section of the left longitudinal beam 1 of the vehicle frame are Not in one plane, that is, the total width of the front section frame is greater than that of the rear section, so as to ensure the installation needs of engines with larger power and size. Vehicle frame right longitudinal beam 28 is also pressed and formed with special-purpose beam steel plate, and vehicle frame left longitudinal beam 1 is symmetrical. On the left longitudinal beam 1 of the vehicle frame and the right longitudinal beam 28 of the vehicle frame, the parts that the vehicle frame should have are connected by rivets 15 from front to back: a front suspension bracket of the engine and the suspension of the first bridge Leaf spring support and first beam assembly 2, a left engine rear suspension bracket 30, a right engine rear suspension bracket 29, a left first axle suspension steel plate lug support and second axle suspension Leaf spring support assembly 3, one piece of right first bridge suspension steel plate hanger support and second bridge suspension steel plate spring support assembly 31, two second bridge suspension steel plate hanger support 7, two transmission Shaft support crossbeam connecting plate 24, one transmission shaft supporting crossbeam 26, two rear suspension front reinforcement crossbeam connection plates 21, two rear suspension front reinforcement crossbeams 22, two rear balance suspension reinforcement crossbeam connection plates 19, two Balance suspension reinforcement crossbeam 18, one piece of vehicle frame rear crossbeam 14 after the piece. Weld a transmission shaft intermediate support bracket 25 on the vertical surface behind the transmission shaft support beam 26; rivet a piece of rear balance suspension side connection on the rear outer side of the left longitudinal beam 1 of the vehicle frame and the right longitudinal beam 28 of the vehicle frame respectively Plate 16; a rear balance suspension support 17 is respectively installed at the left longitudinal beam 1 of the vehicle frame and the right longitudinal beam 28 of the vehicle frame. The left longitudinal beam of the sub-frame is welded by 6 groups of left inner panel 33 punched into an L shape after blanking with a steel plate and 6 sets of left outer panels punched into an L shape after blanking with a steel plate. The box shape of strength and rigidity, the protruding edge of the left outer plate 6 bottom is used for being connected with vehicle frame left longitudinal beam 1. The subframe right longitudinal beam is symmetrical with the subframe left longitudinal beam, and is formed by welding the right inner panel 32 stamped into an L shape after blanking with a steel plate and the right outer panel 27 punched into an L shape after blanking with a steel plate. Weld a front straight top hydraulic cylinder bracket to strengthen the connection support 5 on the outer surface of the left outer plate 6 front part of the left longitudinal beam of the auxiliary frame and the right outer plate 27 front part of the right longitudinal beam of the auxiliary frame; On the upper plane of the left outer plate 6 front part of the left longitudinal beam of the frame, the right outer plate 27 front part of the right longitudinal beam of the sub-frame, and the upper plane of the two front straight top hydraulic cylinder supports to strengthen the connection support 5, a front straight Top hydraulic cylinder bracket assembly 4. On the left longitudinal beam of the sub-frame and the right longitudinal beam of the sub-frame, the components that should be owned by the sub-frame of the dump truck are connected by welding from front to back: two sub-cars made of channel steel blanking Frame beam 23, two hydraulic oil tank support beams 20 that are punched into an L-shape after being blanked with steel plates, one sub-frame beam 23, and one piece of flip shaft support support beams that are stamped into an L-shaped section after blanking with steel plates 9. Weld an upper reinforced connection box 8 on the support crossbeam 9 of the overturn axle support, the left outer plate 6 of the left longitudinal beam of the subframe and the right outer plate 27 of the right longitudinal beam of the subframe respectively; 9 A lower reinforcing connection box 11 is respectively welded at both ends of the lower plane. Four pieces of overturning axle supports 10 are welded on the supporting beam of the overturning axle supports. Hoist the sub-frame assembly on the frame, use the protruding edge of the lower part of the left outer plate 6 of the sub-frame and the protruding edge of the lower part of the right outer plate 27 of the sub-frame and the outer surface of the left longitudinal beam 1 of the frame respectively. , Vehicle frame right longitudinal beam 28 outer surfaces are riveted with rivet 15. The bottom reinforced connecting box 11 at the two ends of the lower plane of the support crossbeam 9 of the overturn shaft support is connected with six bolts 12, self-locking nuts 13 and the left longitudinal beam 1 outer surface of the vehicle frame and the right longitudinal beam 28 outer surfaces of the vehicle frame respectively. The frame and sub-frame of the four-axle heavy-duty dump truck with the integrated structure can not only realize the function of the frame of an ordinary truck, but also realize the function of the sub-frame of the dump truck. By making full use of the advantages of the integrated structure of the frame and sub-frame, under the premise of ensuring sufficient strength and rigidity, less materials can be used, which reduces the overall quality of the vehicle and makes it have a lower production cost, and The utility model is beneficial to the economy of use and can be widely used in four-axle heavy-duty dump trucks.

The above-described embodiment is a preferred implementation mode of the present invention, but the implementation mode of the present invention is not limited by the above-mentioned embodiment, and for those skilled in the art, it can be improved or transformed according to the above description, and all these improvements and transformations should be Belong to the protection scope of the appended claims of the present invention.

Claims (8)

1. a kind of four bridge heavy duty dump truck vehicle frame combined structures of integral structure, it is characterised in that：The composite structure includes Vehicle frame and subframe, the left longeron of vehicle frame are pressed into flute profile with beam steel plate, and the left longitudinal beam front section of vehicle frame is with back segment lateral surface not one In a plane, vehicle frame right vertical beam also uses beam steel plate compression moulding, symmetrical with the left longeron of vehicle frame；It is right in the left longeron of vehicle frame, vehicle frame On longeron, it is connected with the common components of automobile frame by the way of rivet successively from front to back：One engine front overhang Set holder and the first bridge suspension leaf spring bearing and first crossbeam component, a back suspension device of engine left socle, one start Machine rear-suspending right support, a left side the first bridge suspension hinge of leaf spring bearing and the second bridge suspension leaf spring mounting assembly, one Right first bridge suspension hinge of leaf spring bearing and the second bridge suspension leaf spring mounting assembly, two pieces the second bridge suspension hinge of leaf spring branch Web beam connecting plate, two before seat, two pieces cardan-shaft suspension cross-beam connecting plate, a cardan-shaft suspension crossbeam, two pieces rear suspension Equalizing type of suspension web beam, a vehicle after equalizing type of suspension web beam connecting plate, two pieces after web beam, two pieces before part rear suspension Frame rear cross beam.

2. a kind of four bridge heavy duty dump truck vehicle frame combined structures of integral structure as described in claim 1, it is characterized in that： The left longeron of subframe is by with striking out L-shaped left inside side plate and with striking out L-shaped left-external side after steel plate cutting after steel plate cutting Board group is welded, and soldering member section is box-shaped, and the stretching side of left outside side plate lower part with the left longeron of vehicle frame for connecting.

3. a kind of four bridge heavy duty dump truck vehicle frame combined structures of integral structure as claimed in claim 2, it is characterized in that： Subframe right vertical beam and the left longeron of subframe are symmetrical, by with striking out L-shaped Right Inboard plate after steel plate cutting and use steel plate cutting After strike out L-shaped right outside board group and weld.

4. a kind of four bridge heavy duty dump truck vehicle frame combined structures of integral structure as described in claim 1, it is characterized in that： A transmission shaft middle bearing support is welded on vertical plane after cardan-shaft suspension crossbeam；In the left longeron of vehicle frame, vehicle frame right vertical beam Equalizing type of suspension side gussets after riveting one respectively on rear outside face；In the left longeron of vehicle frame, vehicle frame right vertical beam posterior portion It An Zhuan not equalizing type of suspension bearing after one.

5. a kind of four bridge heavy duty dump truck vehicle frame combined structures of integral structure as claimed in claim 3, it is characterized in that： Before the left-external side prelaminar part of the left longeron of subframe, the lateral surface of the right outside prelaminar part of subframe right vertical beam are respectively welded one Straight top hydraulic cylinder holder reinforces connects bearing；It is outer on the left-external side prelaminar part of the left longeron of subframe, the right side of subframe right vertical beam Hydraulic cylinder holder is directly pushed up before the upper plane of side plate front and two to reinforce that in connects bearing in plane, hydraulic pressure is directly pushed up before welding one Cylinder bracket assembly.

6. a kind of four bridge heavy duty dump truck vehicle frame combined structures of integral structure as claimed in claim 3, it is characterized in that： On the left longeron of subframe, subframe right vertical beam, dump truck auxiliary frame is connected with by the way of welding successively from front to back Common components：L-shaped hydraulic oil container is struck out after two pieces chassis cross-member made of channel steel blanking, two pieces steel plate cutting Bearing cross beam, a chassis cross-member, one with struck out after steel plate cutting section be L-shaped torsion shaft bearing support crossbeam.

7. a kind of four bridge heavy duty dump truck vehicle frame combined structures of integral structure as claimed in claim 6, it is characterized in that： It is welded respectively on the left outside side plate of the left longeron of subframe and the right outer panel of subframe right vertical beam in torsion shaft bearing support crossbeam It connects a top and reinforces connection box；A lower part is respectively welded at torsion shaft bearing support crossbeam lower plane both ends and reinforces connection Box；Four overturning shaft stools are welded on torsion shaft bearing support crossbeam.

8. a kind of four bridge heavy duty dump truck vehicle frame combined structures of integral structure as claimed in claim 7, it is characterized in that： Subframe assembly is lifted on vehicle frame, is utilized respectively the right outer panel for stretching out side and subframe of the left outside side plate lower part of subframe The stretching side of lower part and the left longeron lateral surface of vehicle frame, vehicle frame right vertical beam lateral surface rivet；Torsion shaft bearing support crossbeam It is vertical with six bolts, self-locking nut and the left longeron lateral surface of vehicle frame, the vehicle frame right side respectively that connection box is reinforced in the lower part at lower plane both ends Beam lateral surface connects.