Plate spring type semitrailer suspension structure

Abstract

The utility model relates to the technical field of semitrailer suspension, in particular to a plate spring type semitrailer suspension structure. According to the technical scheme, the device comprises a stress plate spring, a buffer plate spring is arranged on one side of the stress plate spring, a shock absorber is arranged between two sets of mounting bases, an attaching block is arranged on the side, close to the buffer plate spring, of the stress plate spring and located between the two sets of mounting bases, and the outer portion of the stress plate spring and the outer portion of the attaching block are sleeved with two sets of assembling hoops. Two sets of positioning plates are arranged at one end of the assembling hoop, a shaft tube is arranged between the two sets of positioning plates, an assembling base is arranged at one end of the stress plate spring, and a transverse stabilizing rod is arranged below the connecting frame. The damping device is simple in overall structure and convenient to maintain, damping can be better carried out on the semitrailer through the arrangement that the stress plate spring and the buffering plate spring are matched with the damper, meanwhile, the suspension bearing capacity and buffering performance of the semitrailer are greatly improved, and the stability and comfort of the semitrailer in the running process are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to semi trailer suspension technical field especially relates to a leaf spring formula semi trailer suspension structure. BACKGROUND

[0002] The leaf spring formula semi trailer suspension is a kind of suspension system for being used between semi trailer axle and frame, its main function is to support the weight of vehicle, absorb the impact generated by road unevenness, ensure the stability and comfort of vehicle driving.The leaf spring formula semi trailer suspension in prior art is mostly by the steel plate of multiple groups of arc shape is stacked and is assembled to form the leaf spring of integral shape, and the carrying capacity of single leaf spring to semi trailer is limited, and due to the higher rigidity of leaf spring, the unevenness of road is more sensitive when semi trailer is driving, which can cause greater vibration in the process of vehicle driving, thereby affecting the comfort of ride.For this reason, we specially propose a kind of leaf spring formula semi trailer suspension structure UTILITY MODEL CONTENTS

[0003] The utility model aims at the problems in the background art, and provides a kind of leaf spring formula semi trailer suspension structure.

[0004] The utility model discloses a leaf spring formula semi trailer suspension structure, including stress leaf spring, the stress leaf spring one side is provided with buffer leaf spring, the stress leaf spring and buffer leaf spring mutually close one side is provided with two groups of mounting seat, two groups of mounting seat between the shock absorber of being provided with, the stress leaf spring is close to buffer leaf spring one side between two groups of mounting seat and is provided with the block that sticks, the stress leaf spring and the outside of block are equipped with two groups of assembly hoop, one end of assembly hoop is provided with two groups of positioning plate, two groups of positioning plate between the shaft pipe of being provided with, one end of stress leaf spring is provided with assembly base, the outside of assembly base is provided with link frame, the lower portion of link frame is provided with transverse stabilizer, the stress leaf spring is provided with assembly frame on the end far from assembly base.

[0005] Preferably, the stress leaf spring includes multiple groups of arc spring plates, and the outer portions of the multiple groups of arc spring plates are provided with a fixed hoop one on the sides away from each other of the two groups of mounting seats.

[0006] Preferably, the buffer leaf spring includes multiple groups of sheet spring plates, and the outer portions of the multiple groups of sheet spring plates are provided with two groups of fixed hoops two, and the inner rings of the fixed hoops two are installed in correspondence with the outer peripheries of the buffer leaf springs.

[0007] Preferably, the mounting ends of the two groups of mounting seats are respectively installed in correspondence with the sides close to each other of the stress leaf spring and the buffer leaf spring, and the mounting ends of the shock absorbers are respectively installed in correspondence with the two groups of mounting seats on the stress leaf spring and the buffer leaf spring.

[0008] Preferably, one side of the fitting block is provided in a circular arc shape, the mounting end of the fitting block is mounted in correspondence with one side of the force plate spring, the assembly hoop is provided in a "U" shape, and the assembly hoop is mounted in correspondence with the force plate spring and the fitting block.

[0009] Preferably, the two sets of positioning plates are mounted in correspondence with the two sets of assembly hoops, one set of the positioning plates is mutually fitted with one set of the arc-shaped spring plates, and the shaft pipe is correspondingly assembled between the two sets of positioning plates.

[0010] Preferably, the assembly base is provided in a "U" shape, one end of the force plate spring is mounted in correspondence with the inner cavity of the assembly base, the link frames are mounted in correspondence with the two sides of the assembly base, and one end of the buffer plate spring is mounted in correspondence with the outer side of the assembly base between the two sets of link frames.

[0011] Preferably, the mounting end of the transverse stabilizing rod is mounted in correspondence with the lower side of the two sets of link frames, one end of the transverse stabilizing rod is provided with a connecting frame, and the mounting end of the connecting frame is mounted in correspondence with the lower set of positioning plates.

[0012] Preferably, the assembly frame is provided in a "U" shape, and the force plate spring and the buffer plate spring, away from the link frames, are mounted in correspondence with the inner wall of the assembly frame.

[0013] Compared with the prior art, the utility model has the advantages of the following beneficial technical effects:

[0014] The utility model discloses simple overall structure, convenient maintenance, the setting of force plate spring and buffer plate spring cooperation shock absorber can better shock attenuation semi-trailer, and greatly improve the bearing capacity and buffering performance of semi-trailer suspension, guarantee the stability and comfort of semi-trailer in the driving process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the overall structure schematic view of the utility model;

[0016] Fig. 2 It is the top view of the utility model;

[0017] Fig. 3 It is the partial area structure schematic view of force plate spring in the utility model.

[0018] Fig. 1, force plate spring;2, buffer plate spring;3, mounting seat;4, shock absorber;5, fitting block;6, assembly hoop;7, positioning plate;8, shaft pipe;9, assembly base;10, link frame;11, arc-shaped spring plate;12, assembly frame;13, fixed hoop one;14, fixed hoop two;15, connecting frame;16, transverse stabilizing rod;21, sheet-shaped spring plate. DETAILED DESCRIPTION

[0019] The technical scheme of the utility model is further explained below in combination with the drawings and specific embodiments. Embodiments

[0020] As Figs. 1-3 shown, the utility model provides a plate spring formula semitrailer suspension structure, including stress plate spring 1, stress plate spring 1 includes multiple sets of arc spring plate 11, multiple sets of arc spring plate 11 are set in the form of layering, and the outside of multiple sets of arc spring plate 11 is provided with fixed hoop no. 13 on the side far away from each other of two sets of mounting seat 3, fixed hoop no. 13 is sleeved on the outside of multiple sets of arc spring plate 11, fixed hoop no. 13 is fixedly connected with arc spring plate 11, and the setting of arc spring plate 11 can make multiple sets of stress plate spring 1 assembled in the form of layering more stable, and the two ends of a set of arc spring plate 11 are set in the form of bending, and the setting of a set of arc spring plate 11 in the form of bending can make stress plate spring 1 more stable when assembling with assembly base 9, stress plate spring 1 is provided with buffer plate spring 2 on one side, buffer plate spring 2 includes multiple sets of sheet spring plate 21, and the outside of multiple sets of sheet spring plate 21 is sleeved with two sets of fixed hoop no. 14, and the inner ring of fixed hoop no. 14 is correspondingly installed with the outer periphery of buffer plate spring 2, and fixed hoop no. 14 is fixedly connected with buffer plate spring 2, and the setting of fixed hoop no. 14 can make multiple sets of sheet spring plate 21 more stable in the assembled state, and stress plate spring 1 and buffer plate spring 2 are both in the form of concave arc on the side close to each other, and stress plate spring 1 and buffer plate spring 2 are both provided with two sets of mounting seat 3 on the side close to each other, the mounting end of two sets of mounting seat 3 is correspondingly installed with the side close to each other of stress plate spring 1 and buffer plate spring 2 respectively, and the mounting end of mounting seat 3 is fixedly connected with stress plate spring 1 and buffer plate spring 2 respectively, and shock absorber 4 is arranged between two sets of mounting seat 3, and the mounting end of shock absorber 4 is correspondingly installed with two sets of mounting seat 3 on stress plate spring 1 and buffer plate spring 2 respectively, and the mounting end of shock absorber 4 is fixedly connected with mounting seat 3, and the setting of stress plate spring 1 and buffer plate spring 2 in cooperation with shock absorber 4 can better shock absorb semitrailer, greatly improve the load capacity and buffering performance of semitrailer suspension, and guarantee the stability and comfort of semitrailer in the driving process;

[0021] The abutting block 5 is arranged between the two groups of mounting seats 3 on the side of the force plate spring 1 close to the buffer plate spring 2, and the side of the abutting block 5 is arranged in a circular arc shape. The mounting end of the abutting block 5 is arranged in correspondence with the side of the force plate spring 1, and the mounting end of the abutting block 5 is fixedly connected with the arc-shaped spring plate 11. The outside of the force plate spring 1 and the abutting block 5 is sleeved with two groups of assembly clamps 6, and the assembly clamps 6 are arranged in a "U" shape. The assembly clamps 6 are arranged in correspondence with the force plate spring 1 and the abutting block 5. The circular arc side of the abutting block 5 is in close contact with the inner wall of the assembly clamp 6. The arrangement of the abutting block 5 can further strengthen the stability between the multiple arc-shaped spring plates 11 in the assembled state of the assembly clamp 6. One end of the assembly clamp 6 is provided with two groups of positioning plates 7, and the two groups of positioning plates 7 are arranged in correspondence with the two groups of assembly clamps 6. The two groups of positioning plates 7 are fixedly connected with the assembly clamps 6. One group of positioning plates 7 is in close contact with one group of arc-shaped spring plates 11. A shaft pipe 8 is arranged between the two groups of positioning plates 7. The shaft pipe 8 is arranged in correspondence between the two groups of positioning plates 7. The shaft pipe 8 is fixedly connected with the positioning plates 7. The shaft pipe 8 is adapted to the semi-trailer axle. One end of the force plate spring 1 is provided with an assembly base 9, and the assembly base 9 is arranged in a "U" shape. One end of the force plate spring 1 is arranged in correspondence with the inner cavity of the assembly base 9. The force plate spring 1 is fixedly connected with the assembly base 9. The outer side of the assembly base 9 is provided with a connecting frame 10. The connecting frame 10 is arranged in correspondence with the two sides of the assembly base 9. The connecting frame 10 is fixedly connected with the assembly base 9. The arrangement of the connecting frame 10 and the assembly base 9 can make the force plate spring 1 and the semi-trailer more stable during assembly. One end of the buffer plate spring 2 is arranged between the two groups of connecting frames 10 and in correspondence with the outer side of the assembly base 9. One end of the buffer plate spring 2 is fixedly connected with the connecting frame 10. A transverse stabilizing rod 16 is arranged below the connecting frame 10. The mounting end of the transverse stabilizing rod 16 is arranged in correspondence with the lower side of the two groups of connecting frames 10. The mounting end of the transverse stabilizing rod 16 is rotatably connected with the connecting frame 10. One end of the transverse stabilizing rod 16 is provided with a connecting frame 15. The end of the transverse stabilizing rod 16 away from the connecting frame 10 is rotatably connected with the connecting frame 15. The mounting end of the connecting frame 15 is arranged in correspondence with the lower group of positioning plates 7. The mounting end of the connecting frame 15 is fixedly connected with the positioning plate 7. The arrangement of the transverse stabilizing rod 16 and the connecting frame 15 can stabilize the force plate spring 1 and the buffer plate spring 2 when they are subjected to vibration, thereby improving the stability of the semi-trailer when encountering a bumpy road. One end of the force plate spring 1 away from the assembly base 9 is provided with an assembly frame 12, and the assembly frame 12 is arranged in a "U" shape. One end of the force plate spring 1 and the buffer plate spring 2 away from the connecting frame 10 is arranged in correspondence with the inner wall of the assembly frame 12. The force plate spring 1 and the buffer plate spring 2 are fixedly connected with the assembly frame 12. The arrangement of the assembly frame 12 can make the other end of the force plate spring 1 and the buffer plate spring 2 stably assembled with the semi-trailer.

[0022] In the embodiment, the operator first stacks and fixes the multiple sets of arc-shaped spring plates 11 through the fixed hoop one 13, then places the fitting block 5 on one side of the arc-shaped spring plate 11, assembles the fitting block 5 with the force plate spring 1 through the assembled hoop 6 and the positioning plate 7, assembles the shaft tube 8 between the two sets of positioning plates 7, fixes and installs the assembly base 9 corresponding to one end of the force plate spring 1, then the operator stacks and fixes the multiple sets of sheet-shaped spring plates 21 through the fixed hoop two 14, places the inner concave surfaces of the force plate spring 1 and the buffer plate spring 2 in a mutually close state, then the operator fixes and assembles the shock absorber 4 on the mounting seat 3 between the force plate spring 1 and the buffer plate spring 2, installs the connecting frame 10 corresponding to the outside of the assembly base 9, assembles the mounting end of the transverse stabilizing rod 16 with the connecting frame 10 in a rotating state, fixes and assembles the mounting end of the connecting frame 15 with the positioning plate 7 on the lower side, assembles the transverse stabilizing rod 16 with the connecting frame 15 in a rotating connection state, and finally fixes and installs the assembly frame 12 corresponding to the other end of the force plate spring 1 and the buffer plate spring 2, so as to complete the assembly work of the semi-trailer suspension.

[0023] When the semi-trailer adopts the suspension, after the semi-trailer is subjected to bumping, the axle transmits the vibration force to the force plate spring 1 through the shaft tube 8 for buffering and shock absorption, the force plate spring 1 cooperates with the buffer plate spring 2 and the shock absorber 4 to buffer and shock the vibration force multiple times, then the transverse stabilizing rod 16 and the connecting frame 15 cooperate to improve the transverse stability of the force plate spring 1, so that the semi-trailer is more stable and smooth during driving.

[0024] The above specific embodiments are only preferred embodiments of the present application, and based on the technical solutions of the present application and the related inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A leaf spring type semi-trailer suspension structure comprising a stressed leaf spring (1), characterized in that: The stress plate spring (1) is provided with a buffer plate spring (2) on one side, and the stress plate spring (1) and the buffer plate spring (2) are provided with two groups of mounting seats (3) on the side close to each other, and a shock absorber (4) is arranged between the two groups of mounting seats (3), and a fitting block (5) is arranged between the two groups of mounting seats (3) on the side close to the buffer plate spring (2) of the stress plate spring (1), and two groups of assembly hoops (6) are arranged outside the stress plate spring (1) and the fitting block (5), one end of the assembly hoop (6) is provided with two groups of positioning plates (7), and a shaft pipe (8) is arranged between the two groups of positioning plates (7), one end of the stress plate spring (1) is provided with an assembly base (9), the outer side of the assembly base (9) is provided with a connecting frame (10), the lower side of the connecting frame (10) is provided with a transverse stabilizing rod (16), and one end of the stress plate spring (1) away from the assembly base (9) is provided with an assembly frame (12).

2. A leaf spring type semi-trailer suspension structure according to claim 1, characterized in that, The stress plate spring (1) comprises a plurality of arc spring plates (11), and the outer part of the plurality of arc spring plates (11) is provided with a fixed hoop one (13) on the side away from each other of the two groups of mounting seats (3), and the two ends of the arc spring plate (11) are arranged in a bent shape.

3. The leaf spring type trailer suspension structure according to claim 1, wherein The buffer plate spring (2) comprises a plurality of sheet spring plates (21), and the outer part of the plurality of sheet spring plates (21) is provided with two groups of fixed hoops two (14), and the inner ring of the fixed hoop two (14) is correspondingly mounted with the outer periphery of the buffer plate spring (2).

4. The leaf spring type trailer suspension structure according to claim 1, wherein The mounting end of the two groups of mounting seats (3) is correspondingly mounted with the side close to each other of the stress plate spring (1) and the buffer plate spring (2), and the mounting end of the shock absorber (4) is correspondingly mounted with the two groups of mounting seats (3) on the stress plate spring (1) and the buffer plate spring (2).

5. The leaf spring type trailer suspension structure according to claim 1, wherein One side of the fitting block (5) is arranged in a circular arc shape, the mounting end of the fitting block (5) is correspondingly mounted with one side of the stress plate spring (1), the assembly hoop (6) is arranged in a "U" shape, and the assembly hoop (6) is correspondingly mounted with the stress plate spring (1) and the fitting block (5).

6. The leaf spring type trailer suspension structure according to claim 1, wherein The two groups of positioning plates (7) are correspondingly mounted with the two groups of assembly hoops (6), one group of the positioning plates (7) is correspondingly mounted with one group of the arc spring plates (11), and the shaft pipe (8) is correspondingly mounted between the two groups of positioning plates (7).

7. The leaf spring type trailer suspension structure according to claim 1, wherein The assembly base (9) is arranged in a "U" shape, one end of the stress plate spring (1) is correspondingly mounted with the inner cavity of the assembly base (9), the connecting frame (10) is correspondingly mounted with both sides of the assembly base (9), and one end of the buffer plate spring (2) is correspondingly mounted with the outer side of the assembly base (9) between the two groups of connecting frames (10).

8. The leaf spring type trailer suspension structure according to claim 1, wherein The mounting end of the transverse stabilizing rod (16) is correspondingly mounted with the lower side of the two groups of connecting frames (10), one end of the transverse stabilizing rod (16) is provided with a connecting frame (15), and the mounting end of the connecting frame (15) is correspondingly mounted with the lower group of positioning plates (7).

9. The leaf spring type trailer suspension structure according to claim 1, wherein The assembly frame (12) is arranged in a "U" shape, and one end of the stress plate spring (1) and the buffer plate spring (2) away from the connecting frame (10) is correspondingly mounted with the inner wall of the assembly frame (12).

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