Heavy-load hydraulic axis trailer with ultra-low platform height

Abstract

The utility model discloses a heavy-load hydraulic axis trailer with an ultra-low platform height, and relates to a road cargo transport vehicle. The vehicle comprises a vehicle frame assembly, a steering rod system and a hydraulic suspension assembly, wherein the vehicle frame assembly comprises a central longitudinal beam, end beams and a plurality of cross beams; longitudinal edge beams are arranged between the end beams and the cross beams and between the adjacent cross beams; connecting plate assemblies are arranged at the two ends of the central longitudinal beam; the central longitudinal beam comprises a web assembly, an upper wing plate located on the top of the web assembly and a lower wing plate located on the lower portion of the web assembly. A plurality of mounting windows are formed in the web assembly corresponding to the cross beams from left to right at intervals; the steering rod system is arranged in the mounting window; the hydraulic suspension assembly is arranged at the bottom of the longitudinal edge beam; the height of the frame assembly is 650 mm; and the thicknesses of the upper wing plate and the lower wing plate are 60mm. The height of the cargo platform surface of the vehicle is greatly reduced, and on the premise of ensuring that the overall strength of the vehicle is improved, a series of structure and use problems caused by height reduction and strength improvement of the central longitudinal beam are solved.

Description

Technical Field

[0001] The utility model relates to a highway freight transport vehicle, more specifically to a heavy-load hydraulic axle trailer with an ultra-low cargo platform height. Background Art

[0002] At present, the management methods for the external dimensions and axle loads of automobile trains transporting large cargo are becoming more and more stringent and detailed. Specifically, the entire transport route needs to be approved or reported, and the vehicle structure and axle load need to be approved. When transport units survey and determine the transport route, they often face a situation where the two constraints of road and bridge bearing capacity and bridge and tunnel height limits cannot be met at the same time. If these cannot be met, the problem can only be solved by road reinforcement and excavation. This helpless solution has invisibly increased transportation costs, prolonged transportation time, and affected the travel of local residents.

[0003] Therefore, the existing large-scale transportation market urgently needs to solve the problem of how to reduce the load height of the cargo platform while achieving heavy loading in transportation equipment.

[0004] Therefore, it is necessary to develop a heavy-duty hydraulic axle trailer with an ultra-low cargo platform height. Utility Model Content

[0005] The purpose of the present invention is to overcome the deficiencies of the above-mentioned background technology and to provide a heavy-duty hydraulic axle trailer with an ultra-low cargo platform height.

[0006] To achieve the above-mentioned object, the technical solution of the present invention is as follows: a heavy-duty hydraulic axle trailer with an ultra-low cargo platform height, characterized in that it includes a frame assembly, a steering linkage, and a hydraulic suspension assembly; the frame assembly includes a central longitudinal beam, end beams arranged at both ends of the central longitudinal beam, and a plurality of cross beams spaced apart on the central longitudinal beam; longitudinal side beams are arranged between the end beams and the cross beams and between adjacent cross beams; and connecting plate assemblies are provided at both ends of the central longitudinal beam;

[0007] The central longitudinal beam includes a web assembly, an upper wing plate located on the top of the web assembly, and a lower wing plate located below the web assembly;

[0008] The web assembly is provided with a plurality of installation windows spaced from left to right corresponding to the cross beam;

[0009] The steering linkage is arranged in the installation window;

[0010] The hydraulic suspension assembly is arranged at the bottom of the longitudinal side beam.

[0011] In the above technical solution, the steering linkage includes a pin shaft arranged in the installation window, a support sleeve mounted on the pin shaft, a sector plate and a longitudinal tie rod base arranged on the support sleeve in order from top to bottom; a plurality of mounting holes are opened on both sides of the sector plate, and a cylinder seat is arranged below the longitudinal tie rod base on the far left; both ends of the cylinder seat are connected to the steering cylinder;

[0012] One of the multiple mounting holes on the side of the sector plate is connected to the hydraulic suspension assembly on the same side through a tie rod;

[0013] Both ends of the first longitudinal tie rod base at the leftmost end are connected to the front end of the vehicle on its left side through a longitudinal tie rod, and one end is connected to one end of the second longitudinal tie rod base adjacent to its right side through a longitudinal tie rod; the second longitudinal tie rod base is connected to the other end of the third longitudinal tie rod base adjacent to its right side through a longitudinal tie rod, and so on.

[0014] In the above technical solution, the hydraulic suspension assembly includes a suspension shaft connected to the longitudinal side beam, a suspension frame connected to the suspension shaft at the top, a lower swing arm whose left end is hinged to the bottom of the suspension frame, one end of the suspension cylinder is hinged to the top of the suspension frame, and the other end is hinged to the middle of the lower swing arm; the right end of the lower swing arm is connected to the tire.

[0015] In the above technical solution, the tire diameter is 711 mm;

[0016] When the suspension cylinder is fully retracted, the tire is located below the longitudinal side beam, and the distance from the bottom of the longitudinal side beam to the bottom of the tire is 721mm;

[0017] When the suspension cylinder is fully extended, the distance from the bottom of the longitudinal side beam to the bottom of the tire is 1223mm.

[0018] In the above technical solution, five mounting holes are opened on both sides of the rightmost sector plate, and seven mounting holes are opened on both sides of the remaining sector plates.

[0019] In the above technical solution, both ends of the connecting plate assembly are connected to the bottom of the end beam through a first diagonal brace, and the connecting plate assembly includes a plurality of connecting plates arranged at intervals and a panel connected to the connecting plates; the connecting plate is arc-shaped, and a pin hole is opened in the middle of the connecting plate; the panel is triangular; a bending rib plate is arranged between adjacent connecting plates; and the panel is connected to the top of the lower wing plate.

[0020] In the above technical solution, the arc radius of the connecting plate is 130 mm.

[0021] In the above technical solution, both ends of the lower wing panel are connected to the longitudinal side beams through second diagonal braces.

[0022] In the above technical solution, the head end includes a head end pin shaft, a head end support sleeve sleeved on the head end pin shaft, a head end fan plate and a head end longitudinal tie rod base sequentially arranged on the head end support sleeve from top to bottom;

[0023] Three front-end mounting holes are provided on both sides of the front-end fan-shaped plate; both ends of the first longitudinal tie rod base at the leftmost end are connected to the two ends of the front-end longitudinal tie rod base through longitudinal tie rods.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] 1) The summary of the present invention is to reduce the cargo platform height to 650mm on the basis of the original hydraulic axle trailer's 750mm cargo platform height and corresponding load-bearing capacity; increase the thickness of the upper and lower wing plates of the hydraulic axle trailer's box beam from the original 50mm thickness to 60mm thickness; change the material of the upper and lower wing plates of the original hydraulic axle trailer's box beam from the original WH60 material to the higher-strength Q690 material; redesign the steering rod system to avoid structural interference; redesign the hydraulic suspension assembly to ensure the vehicle's good passability; redesign the dimensional parameters of the connecting plate assembly to ensure the vehicle's operability and interchangeability; the present invention greatly reduces the vehicle's cargo platform height, on the premise of ensuring that the overall strength of the vehicle is improved, and solves a series of structural and usage problems derived from the reduction in height and increase in strength of the central longitudinal beam.

[0026] 2) The material of the upper and lower wing panels is replaced by WQ690 instead of WH60. After the material grade is changed, the bending section modulus of the new section becomes 140% of the original 750mm section, thus ensuring the load-bearing capacity of the vehicle body.

[0027] 3) The steering rod system of the original 750mm beam high hydraulic axis has a greatly reduced layout space for the original rod system structure because the height of the central beam is reduced by 100mm and the upper and lower wing plates are increased from the original 50mm to 60mm. Therefore, it becomes impossible to arrange the original rod system structure. Therefore, the steering rod system of the utility model is redesigned; the steering rod system of the utility model also has a new design for the spacing between the two connecting holes of the longitudinal tie rod base and the layout of the installation holes of the fan-shaped plate, so that the steering accuracy and maximum steering angle of the wheel axle are improved compared with the original structure.

[0028] 4) The present invention adjusts the relevant structural dimensions of the suspension frame, lower arm, and suspension cylinder in the hydraulic suspension assembly and the relative positions of each hinge point, so that the starting point position and lifting stroke of the entire hydraulic suspension assembly can be adapted to the ultra-low frame height; thanks to the redesigned innovation of the hydraulic suspension assembly, the passability of the present invention is improved compared to the original vehicle.

[0029] 5) The present invention maintains the same pin hole diameter, connecting bolt specifications, and locating pin structural dimensions in the connecting plate assembly, and redesigns the arc radius of the connecting plate and the spacing from the pin shaft to the connecting bolt; this not only meets the structural dimensional requirements of the new vehicle model but also ensures the operability and modular connection interchangeability of the present invention as much as possible.

[0030] To sum up, based on the original 750mm beam height hydraulic axle vehicle, the utility model solves the practical problem of urgently needing to lower the height of the hydraulic axle trailer cargo platform during the transportation of large items by redesigning several major components of the axle vehicle, thereby achieving a win-win situation for this transportation equipment under fierce market competition and strict legal and regulatory requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a front view of the utility model.

[0032] Figure 2 for Figure 1 Top view of .

[0033] Figure 3 This is the front view of the central longitudinal beam.

[0034] Figure 4 A top view of the frame assembly.

[0035] Figure 5 for Figure 3 Schematic diagram of direction B.

[0036] Figure 6 for Figure 4 Cross-sectional view at AA in the middle.

[0037] Figure 7 This is a front view of the connecting plate assembly.

[0038] Figure 8 for Figure 7 Top view of .

[0039] Figure 9 for Figure 7 side view.

[0040] Figure 10 A top view of the steering linkage.

[0041] Figure 11 This is a front view of the leftmost longitudinal tie rod base.

[0042] Figure 12 for Figure 11 Top view of .

[0043] Figure 13 for Figure 11 side view.

[0044] Figure 14 This is a front view of the longitudinal tie rod base in the middle section.

[0045] Figure 15 for Figure 14 Top view of .

[0046] Figure 16 for Figure 14 side view.

[0047] Figure 17 This is a front view of the longitudinal tie rod base at the front end of the vehicle.

[0048] Figure 18 for Figure 17 Top view of .

[0049] Figure 19 for Figure 17 side view.

[0050] Figure 20 This is a front view of the hydraulic suspension assembly.

[0051] Figure 21 This is a front view of the hydraulic suspension assembly when the suspension cylinder is fully retracted.

[0052] Figure 22 This is a front view of the hydraulic suspension assembly when the suspension cylinder is fully extended.

[0053] Among them, 100-frame assembly, 110-central longitudinal beam, 111-web assembly, 112-upper wing plate, 113-lower wing plate, 114-installation window, 1141-fixed support, 1142-cylinder support, 120-end beam, 130-cross beam, 140-longitudinal side beam, 150-connecting plate assembly, 151-connecting plate, 152-panel, 153-bent plate, 161-first diagonal brace, 162-second diagonal brace, 170-cover plate, 200-steering linkage, 210-pin shaft, 211-sleeve, 212-pressure cover, 213-O-type rubber sealing ring, 214-slotted countersunk screw, 220 -Support sleeve, 230-sector plate, 231-mounting hole, 240-longitudinal tie rod base, 241-left and right swivel plates, 242-joint bearing seat, 250-cylinder seat, 260-steering cylinder, 261-transverse tie rod, 262-longitudinal tie rod, 300-hydraulic suspension assembly, 310-suspension shaft, 320-suspension frame, 330-lower arm, 340-suspension cylinder, 341-long joint of suspension cylinder, 350-tire, 400-front end, 410-front end pin shaft, 420-front end support sleeve, 430-front end sector plate, 431-front end mounting hole, 440-front end longitudinal tie rod base. DETAILED DESCRIPTION

[0054] The following detailed description of the implementation of the present invention is provided in conjunction with the accompanying drawings, which do not limit the present invention and are merely examples. The advantages of the present invention will become clearer and easier to understand through the description.

[0055] Referring to the accompanying drawings, a heavy-duty hydraulic axle trailer with an ultra-low cargo platform is characterized by comprising a frame assembly 100, a steering linkage 200, and a hydraulic suspension assembly 300. The frame assembly 100 includes a central longitudinal beam 110, end beams 120 disposed at both ends of the central longitudinal beam 110, and a plurality of cross beams 130 spaced apart on the central longitudinal beam 110. Longitudinal side beams 140 are disposed between the end beams 120 and the cross beams 130, and between adjacent cross beams 130.

[0056] The longitudinal side beam 140 consists of two rows;

[0057] The central longitudinal beam 110 is provided with a connecting plate assembly 150 at both ends;

[0058] The central longitudinal beam 110 includes a web assembly 111, an upper wing plate 112 located on the top of the web assembly 111, and a lower wing plate 113 located below the web assembly 111;

[0059] The web assembly 111 is provided with a plurality of installation windows 114 spaced from left to right corresponding to the cross beam 130;

[0060] The steering linkage 200 is disposed in the mounting window 114;

[0061] The hydraulic suspension assembly 300 is arranged at the bottom of the longitudinal side beam 140;

[0062] The height of the frame assembly 100 is 650 mm; the thickness of the upper wing panel 112 and the lower wing panel 113 is 60 mm, and the material is Q690.

[0063] The utility model reduces the cargo platform height from 7500 to 6500mm, a reduction of 100mm, and reduces the height of the central longitudinal beam 110 to 650mm, thereby greatly expanding the cargo transportation range under the same height limit conditions; the utility model adopts new materials and new structures for the entire vehicle, and its load-bearing capacity is increased to 1.4 times of the original structure when the height of the central longitudinal beam 110 is reduced, completely eliminating the hidden danger of reduced load-bearing capacity caused by lowering the beam height, and further improving the reliability of the equipment.

[0064] The steering linkage 200 includes a pin 210 disposed within the mounting window 114, a support sleeve 220 mounted on the pin 210, a sector plate 230 and a trailing rod base 240 disposed on the support sleeve 220, from top to bottom. Multiple mounting holes 231 are formed on both sides of the sector plate 230. A cylinder seat 250 is disposed below the leftmost trailing rod base 240. Both ends of the cylinder seat 250 are connected to a steering cylinder 260.

[0065] One of the plurality of mounting holes 231 on the side of the sector plate 230 is connected to the hydraulic suspension assembly 300 on the same side via a tie rod 261 ;

[0066] Both ends of the first longitudinal tie rod base 240 at the far left are connected to the front end 400 on its left side through the longitudinal tie rod 262, one end of which is connected to one end of the second longitudinal tie rod base 240 adjacent to its right side through the longitudinal tie rod 262; the second longitudinal tie rod base 240 is connected to the other end of the third longitudinal tie rod base 240 adjacent to its right side through the longitudinal tie rod 262, and so on.

[0067] The hydraulic suspension assembly 300 includes a suspension shaft 310 connected to the longitudinal side beam 140, a suspension bracket 320 connected to the top of the suspension shaft 310, a lower swing arm 330 whose left end is hinged to the bottom of the suspension bracket 320, and a suspension cylinder 340 with one end hinged to the top of the suspension bracket 320 and the other end hinged to the middle of the lower swing arm 330; the right end of the lower swing arm 330 is connected to the tire 350.

[0068] The tire 350 has a diameter of 711 mm;

[0069] When the suspension cylinder 340 is fully retracted, the tire 350 is located below the longitudinal side beam 140, and the distance from the bottom of the longitudinal side beam 140 to the bottom of the tire 350 is 721 mm;

[0070] When the suspension cylinder 340 is fully extended, the distance from the bottom of the longitudinal side beam 140 to the bottom of the tire 350 is 1223 mm.

[0071] The rightmost sector plate 230 has five mounting holes 231 on both sides, and the remaining sector plates 230 have seven mounting holes 231 on both sides.

[0072] Both ends of the connecting plate assembly 150 are connected to the bottom of the end beam 120 through the first diagonal brace 161. The connecting plate assembly 150 includes a plurality of connecting plates 151 arranged at intervals and a panel 152 connected to the connecting plates 151; the connecting plates 151 are arc-shaped, and a pin hole is opened in the middle of the connecting plates 151; the panel 152 is triangular; a bent rib plate 153 is provided between adjacent connecting plates 151; the panel 152 is connected to the top of the lower wing plate 113.

[0073] The arc radius of the connecting plate 151 is 130 mm.

[0074] Both ends of the lower wing panel 113 are connected to the longitudinal side beam 140 through a second diagonal brace 162 .

[0075] The front end 400 includes a front end pin shaft 410, a front end support sleeve 420 mounted on the front end pin shaft 410, a front end fan plate 430 and a front end longitudinal tie rod base 440 sequentially arranged on the front end support sleeve 420 from top to bottom;

[0076] Three front-end mounting holes 431 are provided on both sides of the front-end fan-shaped plate 430 ; both ends of the first longitudinal tie rod base 240 at the leftmost end are connected to both ends of the front-end longitudinal tie rod base 440 through longitudinal tie rods 262 .

[0077] In actual use, such as Figure 1 and Figure 2 As shown, the length of the frame assembly 100 of the present invention is 7750 mm and the width is 2290 mm; the distance between the centers of the two rows of longitudinal side beams 140 is 1820; the distance between the centers of adjacent tires 350 is 1550 mm; and the distance from the center of the tire 350 to the top of the frame assembly 100 is 950±250 mm.

[0078] like Figure 3 and Figure 4 As shown, a fixed support 1141 is provided at the left end of the installation window 114, and a cylinder support 1142 is provided at the right end of the leftmost installation window 114. One end of the steering cylinder 260 is connected to the cylinder seat 250 and the other end is connected to the cylinder support 1142; a cover plate 170 is provided on the top of the central longitudinal beam 110, the end beam 120, the cross beam 130, and the longitudinal side beam 140; the hole spacing of the connecting holes on both sides of the fixed support 1141 and the cylinder support 1142 is 210 mm.

[0079] like Figure 7 、 Figure 8 and Figure 9 As shown, the thickness of the connecting plate 151 is 50 mm, and the spacing between adjacent connecting plates 151 is 60 mm; the bent plate 153 is located at the connection between the connecting plate 151 and the panel 152, and the bent plate 153 includes a straight plate 1531 and a bent plate 1532 at the bottom of the straight plate 1531; the bottom of the panel 152 is connected to the top of the bent plate 1532, and the bottom of the connecting plate 151 is connected to the bottom of the bent plate 1532; the height difference between the bottom of the connecting plate 151 and the bottom of the panel 152 is 60 mm.

[0080] The leftmost longitudinal tie rod base 240 is as shown in FIG. Figure 11 、 Figure 12 and Figure 13As shown, the longitudinal tie rod 262 is connected to the longitudinal tie rod base 240 through the left and right rotary plates 241; the hole spacing of the connection holes connecting the longitudinal tie rod 262 at both ends of the longitudinal tie rod base 240 is 460mm; both ends of the longitudinal tie rod base 240 are provided with joint bearing seats 242; the pin shaft 210 is connected to the support sleeve 220 through the shaft sleeve 211, and the top and bottom of the pin shaft 210 are provided with pressure covers 212, and an O-type rubber sealing ring 213 is provided between the pressure cover 212 and the pin shaft 210. The pressure cover 212, the O-type rubber sealing ring 213, and the pin shaft 210 are connected by a slotted countersunk screw 214.

[0081] The longitudinal tie rod base 2400 of the middle section is as follows Figure 14 、 Figure 15 and Figure 16 As shown, the front end longitudinal tie rod base 440 is as shown in FIG. Figure 17 、 Figure 18 and Figure 19 shown.

[0082] Hydraulic suspension assembly 300 Figure 20 、 Figure 21 and Figure 22 As shown, the cylinder body of the suspension cylinder 340 is connected to the middle part of the suspension bracket 320 through the suspension cylinder long joint 341.

[0083] Any parts not described belong to the prior art.

Claims

1. A heavy-duty hydraulic axle trailer with an ultra-low cargo platform, characterized by: The vehicle comprises a frame assembly (100), a steering rod system (200), and a hydraulic suspension assembly (300). The frame assembly (100) comprises a central longitudinal beam (110), end beams (120) arranged at both ends of the central longitudinal beam (110), and a plurality of cross beams (130) arranged at intervals on the central longitudinal beam (110); longitudinal side beams (140) are arranged between the end beams (120) and the cross beams (130), and between adjacent cross beams (130); and connecting plate assemblies (150) are arranged at both ends of the central longitudinal beam (110). The central longitudinal beam (110) includes a web assembly (111), an upper wing plate (112) located on the top of the web assembly (111), and a lower wing plate (113) located below the web assembly (111); The web assembly (111) is provided with a plurality of installation windows (114) spaced from left to right corresponding to the crossbeam (130); The steering linkage (200) is arranged in the installation window (114); The hydraulic suspension assembly (300) is arranged at the bottom of the longitudinal side beam (140).

2. The heavy-duty hydraulic axle trailer with an ultra-low cargo platform height according to claim 1, characterized in that: The steering linkage (200) includes a pin shaft (210) disposed in an installation window (114), a support sleeve (220) sleeved on the pin shaft (210), a sector plate (230) and a longitudinal tie rod base (240) sequentially disposed on the support sleeve (220) from top to bottom; a plurality of mounting holes (231) are provided on both sides of the sector plate (230); a cylinder seat (250) is provided below the longitudinal tie rod base (240) on the far left; both ends of the cylinder seat (250) are connected to the steering cylinder (260); One mounting hole (231) among the plurality of mounting holes (231) on the side of the sector plate (230) is connected to the hydraulic suspension assembly (300) on the same side via a tie rod (261); Both ends of the first longitudinal tie rod base (240) at the leftmost end are connected to the front end (400) on its left side through the longitudinal tie rod (262), one end of which is connected to one end of the second longitudinal tie rod base (240) adjacent to its right side through the longitudinal tie rod (262); the second longitudinal tie rod base (240) is connected to the other end of the third longitudinal tie rod base (240) adjacent to its right side through the longitudinal tie rod (262), and so on.

3. The heavy-duty hydraulic axle trailer with an ultra-low cargo platform height according to claim 2, characterized in that: The hydraulic suspension assembly (300) comprises a suspension shaft (310) connected to the longitudinal side beam (140), a suspension frame (320) connected to the suspension shaft (310) at the top, a lower swing arm (330) hinged at the left end to the bottom of the suspension frame (320), a suspension cylinder (340) having one end hinged to the top of the suspension frame (320) and the other end hinged to the middle of the lower swing arm (330); and the right end of the lower swing arm (330) is connected to the tire (350).

4. The heavy-duty hydraulic axle trailer with an ultra-low cargo platform according to claim 3, characterized in that: The tire (350) has a diameter of 711 mm; When the suspension cylinder (340) is fully retracted, the tire (350) is located below the longitudinal side beam (140), and the distance from the bottom of the longitudinal side beam (140) to the bottom of the tire (350) is 721 mm; When the suspension cylinder (340) is fully extended, the distance from the bottom of the longitudinal side beam (140) to the bottom of the tire (350) is 1223 mm.

5. The heavy-duty hydraulic axle trailer with an ultra-low cargo platform according to claim 4, characterized in that: The rightmost sector plate (230) has five mounting holes (231) on both sides, and the remaining sector plates (230) have seven mounting holes (231) on both sides.

6. The heavy-duty hydraulic axle trailer with an ultra-low cargo platform according to claim 5, characterized in that: Both ends of the connecting plate assembly (150) are connected to the bottom of the end beam (120) through a first diagonal brace (161). The connecting plate assembly (150) comprises a plurality of connecting plates (151) arranged at intervals and a panel (152) connected to the connecting plates (151); the connecting plates (151) are arc-shaped, and a latch hole is opened in the middle of the connecting plates (151); the panel (152) is triangular; a ribbed plate (153) is provided between adjacent connecting plates (151); and the panel (152) is connected to the top of the lower wing plate (113).

7. The heavy-duty hydraulic axle trailer with an ultra-low cargo platform according to claim 6, characterized in that: The arc radius of the connecting plate (151) is 130 mm.

8. The heavy-duty hydraulic axle trailer with an ultra-low cargo platform according to claim 7, characterized in that: Both ends of the lower wing plate (113) are connected to the longitudinal side beam (140) through a second diagonal brace (162).

9. The heavy-duty hydraulic axle trailer with an ultra-low cargo platform according to claim 8, characterized in that: The front end (400) includes a front end pin shaft (410), a front end support sleeve (420) sleeved on the front end pin shaft (410), a front end fan-shaped plate (430) and a front end longitudinal tie rod base (440) sequentially arranged on the front end support sleeve (420) from top to bottom; Three front-end mounting holes (431) are provided on both sides of the front-end fan-shaped plate (430); both ends of the first longitudinal tie rod base (240) at the leftmost end are connected to both ends of the front-end longitudinal tie rod base (440) through longitudinal tie rods (262).

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