Connecting structure of frame and suspension

Abstract

The utility model relates to the technical field of container unmanned transport vehicles, in particular to a connecting structure of a frame and a suspension. The connecting structure comprises a first connecting assembly and a second connecting assembly. The first connecting assembly comprises a first steel part, a connecting plate and an H-shaped frame front support which are sequentially connected from top to bottom. The second connecting assembly comprises a second steel part and a suspension connecting plate which are connected in sequence; the first steel piece and the second steel piece are connected with the side face of the main frame and the side face of the auxiliary frame, the connecting plate and the suspension connecting plate are connected with the auxiliary frame, the H-shaped frame front support is connected with the H-shaped frame, and the suspension connecting plate is connected with the elastic element. According to the connecting structure, integrated connection of the main frame, the auxiliary frame and the suspension is achieved, the overall anti-roll capacity of the suspension is improved, and the connecting structure is suitable for a suspension structure with a wide distance and a frame structure with a main layer and an auxiliary layer.

Description

TECHNICAL FIELD

[0001] The utility model relates to container unmanned transport vehicle technical field, concretely relates to a connecting structure of frame and suspension. BACKGROUND

[0002] Traditional steel container unmanned transport vehicle suspension assembly is generally connected with the main beam in a welding mode, is not easy to maintain after welding, is poor in replaceability, and needs to be repainted after suspension assembly, and the paint adhesion is weak at the repainted position, and rust is prone to occur subsequently. Meanwhile, the contact area of the suspension support and the girder is small, and concentrated stress is prone to occur under the impact working condition at the connecting position, so very thick steel material needs to be used to solve the stress problem, thereby increasing the overall vehicle weight.

[0003] There is also a longitudinal riveting mode for connecting the suspension and the main beam in the prior art, which can overcome the problems of poor maintainability and replaceability after welding, and inconvenient repainting and painting, but the longitudinal riveting mode limits the center distance of the longitudinal beam in the main beam, and the distance of the leaf spring in the suspension is limited by the axle, and if the small leaf spring distance is matched with the wide longitudinal beam distance, the anti-rolling capacity of the suspension will be greatly reduced. When the longitudinal beam is riveted, the anchor bolt inevitably forms a vertical posture with the lower wing plate of the girder, and under the impact condition, the lower wing plate inevitably has a slight bending, which causes the material of the girder near the rivet to be damaged, and the riveted connection gradually loosens and finally fails. SUMMARY

[0004] The utility model solves the technical problem that a full-assembly type connecting structure suitable for connecting the main beam large-span aluminum alloy frame and the rubber suspension is provided.

[0005] In order to solve the above technical problem, the utility model adopts the technical scheme that a connecting structure of frame and suspension, the frame includes main frame and auxiliary frame arranged in sequence, the suspension includes elastic element and H-shaped frame arranged in sequence, the connecting structure includes first connecting assembly and second connecting assembly, the first connecting assembly includes first steel piece, connecting plate and H-shaped frame front support connected in sequence from top to bottom, the second connecting assembly includes second steel piece and suspension connecting plate connected in sequence, the first steel piece and the second steel piece are connected with the side surface of the main frame and the auxiliary frame, the connecting plate and the suspension connecting plate are connected with the auxiliary frame, the H-shaped frame front support is connected with the H-shaped frame, and the suspension connecting plate is connected with the elastic element.

[0006] Among them, the elastic element includes top steel plate, elastic piece and bottom steel plate arranged in sequence from top to bottom, and the top steel plate is connected with the suspension connecting plate through bolts.

[0007] Among them, the auxiliary frame includes girder lower wing plate, and the suspension connecting plate is connected with the girder lower wing plate.

[0008] The suspension height adjusting plate is arranged between the lower wing plate of the main beam and the suspension connecting plate, and the lower wing plate of the main beam, the suspension height adjusting plate and the suspension connecting plate are connected through rivet connection.

[0009] The number of the height adjusting plates is at least two.

[0010] The second steel piece, the suspension height adjusting plate and the suspension connecting plate are connected through bolts.

[0011] The top steel plate and the suspension connecting plate are connected through six-side countersunk bolt.

[0012] Grooves are arranged on the first steel piece and the second steel piece, and the lower end of the main frame and the upper end of the auxiliary frame are arranged in the grooves.

[0013] The suspension comprises a driver and an axle, the first steel piece is arranged above the driver, and the second steel piece is arranged above the axle.

[0014] A reinforcing plate is arranged on the second steel piece.

[0015] The beneficial effect of the utility model lies in that the utility model realizes the integrated connection of the main frame, the auxiliary frame and the suspension. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the schematic view of the connecting structure of the embodiment of the utility model;

[0017] Fig. 2 It is the connecting schematic view of the connecting structure and the main frame, the auxiliary frame and the suspension of the embodiment of the utility model;

[0018] Fig. 3 It is the connecting schematic view of the connecting structure and the suspension of the embodiment of the utility model;

[0019] Fig. 4 It is the connecting schematic view of the connecting structure and the suspension of the embodiment of the utility model;

[0020] Fig. 5 It is the explosion view of Fig. 4

[0021] Label explanation:

[0022] 1, main frame; ​

[0023] 2. subframe; 21, lower wing plate of girder;

[0024] 3. suspension; 31, elastic element; 311, top steel plate; 312, rubber elastic piece; 313, bottom steel plate; 32, H-shaped frame;

[0025] 4. first connecting assembly; 41, first steel piece; 42, connecting plate; 43, front support of H-shaped frame;

[0026] 5. second connecting assembly; 51, second steel piece; 511, reinforcing plate; 52, suspension height adjusting plate; 53, suspension connecting plate. DETAILED DESCRIPTION

[0027] In order to explain the technical content, the purpose and the effect of the present application in detail, the following will be described in combination with the embodiments and the accompanying drawings.

[0028] Please refer to Figs. 1-5 A connecting structure of a frame and a suspension, the frame comprises a main frame and a subframe arranged in sequence, and the suspension comprises an elastic element and an H-shaped frame arranged in sequence; the connecting structure comprises a first connecting assembly and a second connecting assembly, the first connecting assembly comprises a first steel piece, a connecting plate and a front support of the H-shaped frame connected in sequence from top to bottom; the second connecting assembly comprises a second steel piece and a suspension connecting plate connected in sequence; the first steel piece and the second steel piece are connected with the side surfaces of the main frame and the subframe, the connecting plate and the suspension connecting plate are connected with the subframe, the front support of the H-shaped frame is connected with the H-shaped frame, and the suspension connecting plate is connected with the elastic element.

[0029] From the above description, the beneficial effects of the present application are that in the present application, the first steel piece and the second steel piece are connected with the side surfaces of the main frame and the subframe, the connecting plate and the suspension connecting plate are connected with the subframe, the front support of the H-shaped frame is connected with the H-shaped frame, and the suspension connecting plate is connected with the elastic element, so that the integrated connection of the main frame, the subframe and the suspension is realized through the above connecting structure. The first steel piece and the second steel piece are used as the connecting structure of the side surfaces, so that the spacing between the elastic elements can be further widened, which is very suitable for the suspension structure with wider spacing of the elastic element arrangement of the rubber suspension of the H-shaped suspension support structure, and is suitable for the main and sub double-layer frame structure. At the same time, it is beneficial to improve the anti-tilting ability of the whole suspension, and has better gain on the driving stability of the vehicle.

[0030] Further, the elastic element comprises a top steel plate, an elastic piece and a bottom steel plate arranged in sequence from top to bottom, and the top steel plate is connected with the suspension connecting plate through bolts.

[0031] Further, the subframe comprises a lower wing plate of girder, and the suspension connecting plate is connected with the lower wing plate of girder.

[0032] From the above description, the suspension connecting plate is connected with the lower wing plate of the girder to realize large-area adhesion, effectively transmit the impact force to the elastic element, avoid stress concentration, and realize lightweight design of the suspension to further reduce the weight.

[0033] Further, the suspension height adjusting plate is arranged between the lower wing plate of the girder and the suspension connecting plate, and the lower wing plate of the girder, the suspension height adjusting plate and the suspension connecting plate are connected through rivet connection.

[0034] From the above description, the rivet connection mode is adopted, so that the components such as the first steel piece and the second steel piece can be pre-treated against rust, and painting is not required during the whole installation process.

[0035] Further, the number of the height adjusting plates is at least two.

[0036] Further, the second steel piece, the suspension height adjusting plate and the suspension connecting plate are connected through bolts.

[0037] From the above description, in order to meet the suspension height requirement of the whole vehicle, the suspension height adjusting plate is arranged between the lower wing plate of the girder and the suspension connecting plate. Therefore, the connection thickness of the lower wing plate of the girder, the second steel piece, the suspension height adjusting plate, the suspension connecting plate and the H-shaped frame is nearly 130 mm, and the number of the connecting components is six. If the rivet connection is directly used, not only the processing difficulty is large, but also the replacement of the elastic element in the later period is difficult. If the bolt connection is directly used for the connecting components with such thickness and number, the shear connection strength is difficult to guarantee.

[0038] Therefore, when the connection mode is designed, the rivet connection scheme is used in the vertical direction to connect the lower wing plate of the girder, the suspension height adjusting plate and the suspension connecting plate. The top steel plate of the elastic element is connected with the suspension connecting plate through bolts. The side steel piece is used to connect the main frame, the auxiliary frame and the suspension connecting plate. The partial connection is realized, the components are easy to disassemble and replace, and the shear connection strength is high.

[0039] Further, the top steel plate and the suspension connecting plate are connected through six-hole countersunk head bolts.

[0040] From the above description, the six-hole countersunk head bolts are used for pre-buried bolts. The rubber suspension elastic element and the suspension connecting plate are connected through the pre-buried bolts, and the rubber suspension elastic element is compatible and replaceable.

[0041] Further, the first steel piece and the second steel piece are provided with grooves, and the lower end of the main frame and the upper end of the auxiliary frame are arranged in the grooves.

[0042] From the above description, the grooves arranged on the first steel piece and the second steel piece can improve the connection strength between the first steel piece, the second steel piece, the main frame and the auxiliary frame.

[0043] Further, the first connecting assembly is oppositely arranged in two groups, and the second connecting assembly is oppositely arranged in two groups.

[0044] Further, the second steel piece is provided with a reinforcing plate.

[0045] From the above description, the second steel piece is arranged above the elastic element and bears greater impact force, and the reinforcing plate needs to be added to improve the strength.

[0046] Please refer to Figs. 1-5 The embodiment of the utility model provides a connecting structure of a frame and a suspension 3, the frame comprises a main frame 1 and a sub frame 2 arranged in sequence, the sub frame 2 comprises a lower wing plate 21 of a girder, the suspension 3 comprises an elastic element 31 and an H-shaped frame 32 arranged in sequence, the elastic element 31 comprises a top steel plate 311, a rubber elastic element 312 and a bottom steel plate 313 arranged in sequence from top to bottom.

[0047] The connecting structure comprises two groups of oppositely arranged first connecting assemblies 4 and two groups of oppositely arranged second connecting assemblies 5; the first connecting assembly 4 comprises a first steel piece 41, a connecting plate 42 and an H-shaped frame front support 43 connected in sequence from top to bottom, the connecting plate 42 is connected with the sub frame 2, and the H-shaped frame front support 43 is connected with the H-shaped frame 32; the second connecting assembly 5 comprises a second steel piece 51, three suspension height adjusting plates 52 and a suspension connecting plate 53 connected in sequence, and the second steel piece 51 is provided with a reinforcing plate 511; the suspension connecting plate 53 is connected with the top steel plate 311 of the elastic element 31 through a hexagonal counterbore bolt, the second steel piece 51, the suspension height adjusting plate 52 and the suspension connecting plate 53 are connected through bolts, and the lower wing plate 21 of the girder of the sub frame 2, the suspension height adjusting plate 52 and the suspension connecting plate 53 are connected through rivet connection; the first steel piece 41 and the second steel piece 51 are connected with the side surfaces of the main frame 1 and the sub frame 2, recesses are arranged on the first steel piece 41 and the second steel piece 51, the lower end of the main frame 1 and the upper end of the sub frame 2 are arranged in the recesses, and the suspension connecting plate 53 is connected with the elastic element 31.

[0048] In conclusion, the connecting structure of the frame and the suspension 3 has the following advantages:

[0049] 1. The connecting structure can simultaneously connect the main frame 1, the sub frame 2 and the suspension 3.

[0050] 2. The connecting structure arranged on the side surface can improve the connection strength of the main frame 1 and the sub frame 2, improve the driving stability of the vehicle, and is suitable for the suspension 3 structure with a wide spacing between the elastic elements 31 and the main and sub double-layer frame structure.

[0051] 3. The connection of the suspension connecting plate 53 and the lower wing plate 21 of the girder can improve the connection area and avoid stress concentration.

[0052] 4. In order to realize the design requirements of easy disassembly and replacement of parts and improve the shear connection strength, the connection mode is divided into two parts, the elastic element 31 is connected with the suspension connecting plate 53 through a hexagonal hole, and the lower wing plate 21 of the beam, the suspension height adjusting plate 52 and the suspension connecting plate 53 are connected by using pull rivet connection; and the outer side uses steel parts to connect the main frame 1, the auxiliary frame 2 and the suspension connecting plate 53.

[0053] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent transformation, direct or indirect application in related technical fields by using the content of the present application specification and drawings are also included in the patent protection range of the present application.

Claims

1. A connection structure of a vehicle frame and a suspension, the vehicle frame including a main frame and a sub frame which are arranged in this order, the suspension including an elastic member and an H-shaped frame which are arranged in this order, characterized in that, The connecting structure comprises a first connecting assembly and a second connecting assembly, the first connecting assembly comprises a first steel piece, a connecting plate and an H-shaped frame front support connected in sequence from top to bottom; the second connecting assembly comprises a second steel piece and a suspension connecting plate connected in sequence; the first steel piece and the second steel piece are connected with the side surfaces of the main frame and the auxiliary frame, the connecting plate and the suspension connecting plate are connected with the auxiliary frame, the H-shaped frame front support is connected with the H-shaped frame, and the suspension connecting plate is connected with the elastic element.

2. The frame and suspension connection structure according to claim 1, characterized by The elastic element comprises a top steel plate, an elastic piece and a bottom steel plate arranged in sequence from top to bottom, and the top steel plate is connected with the suspension connecting plate through bolts.

3. The frame and suspension connection structure according to claim 2, characterized by The auxiliary frame comprises a girder lower wing plate, and the suspension connecting plate is connected with the girder lower wing plate.

4. The frame and suspension connection structure according to claim 3, characterized by Suspension height adjusting plates are arranged between the girder lower wing plate and the suspension connecting plate, and the girder lower wing plate, the suspension height adjusting plates and the suspension connecting plate are connected through rivets.

5. The frame and suspension connection structure according to claim 4, characterized by The number of the height adjusting plates is at least two.

6. The frame and suspension connection structure according to claim 4, characterized by The second steel piece, the suspension height adjusting plates and the suspension connecting plate are connected through bolts.

7. The frame and suspension connection structure according to claim 2, characterized by The top steel plate and the suspension connecting plate are connected through hexagon countersunk head bolts.

8. The frame and suspension connection structure according to claim 1, characterized by Grooves are arranged on the first steel piece and the second steel piece, and the lower end of the main frame and the upper end of the auxiliary frame are arranged in the grooves.

9. The frame and suspension connection structure according to claim 1, characterized by Two groups of the first connecting assemblies are oppositely arranged, and two groups of the second connecting assemblies are oppositely arranged.

10. The frame and suspension connection structure according to claim 1, characterized by A reinforcing plate is arranged on the second steel piece.

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