An electric tricycle chassis with a suspension structure

Abstract

The utility model discloses an electric tricycle chassis with a suspension structure, comprising a chassis body, wherein the chassis body is arranged at the bottom of the electric tricycle, and also comprises a mounting mechanism for providing mounting support for a driving device, a suspension mechanism for constituting a suspension structure, and a buffer mechanism for providing buffer support for the suspension mechanism. The mounting mechanism is arranged at one end of the chassis body, the suspension mechanism is assembled on the side of the chassis body, and the buffer mechanism is configured on the inner side of the suspension mechanism. The beneficial effect of the utility model is that a mounting mechanism is provided, which together with the chassis body constitutes a segmented chassis structure, which can ensure the overall strength of the chassis while meeting the installation requirements of the driving device. A suspension mechanism and a buffer mechanism are provided to cooperate with each other to jointly constitute a suspension structure with a buffer function, so that the wheel and the chassis are buffer-connected, which can effectively improve the shock-absorbing and buffering capacity of the bucket part of the electric tricycle, and improve the driving stability and comfort of the electric tricycle.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tricycles, in particular to an electric tricycle chassis with a suspension structure. Background Art

[0002] In the prior art, electric tricycles can flexibly travel through narrow roads with their advantages of strong applicability, flexibility, simple maintenance, convenient repair, and low price. Electric tricycles have a reverse switch that can easily realize the reverse and forward driving functions, which is very practical in narrow alleys and lanes, and is very convenient for driving and parking. It is widely used in short-distance transportation fields such as family, urban and rural areas, individual rental, factory areas, mining areas, sanitation, community cleaning, etc. The frame of the existing electric tricycle mainly includes a front pedal bracket and a rear chassis frame. The front end of the pedal bracket is connected with a front fork tube through an inclined beam. Among them, the frame connection mainly adopts a segmented structure, which is formed by splicing and then welding. There are many welding points required, which affects the overall strength of the frame. The welding process is relatively complicated and inconvenient, and the integral axle uses a hard connection structure when connected to the tricycle frame. When the vehicle is turning, the centrifugal force cannot be offset, and the vehicle is easy to roll over. When the vehicle encounters an obstacle, the shock absorption effect is poor, resulting in poor driving stability and comfort of the existing electric tricycle.

[0003] The Chinese utility model patent with application number: 202122116393.0 discloses an electric tricycle chassis frame, including a support frame structure and a support chassis, wherein a first reinforcing rod is arranged at the inner frame of the support frame structure, a support beam is arranged between the support frame structures, the support chassis is arranged below the support frame structure, a support frame is arranged on the right side of the upper end surface of the support chassis, a connecting frame is arranged on the left side of the upper end surface of the support chassis, a mounting base is arranged in the middle of the connecting frame, a mounting frame is arranged at the upper end of the mounting base, and reinforcing beam frames are arranged at the lower end of the mounting frame and on both sides relative to the mounting base, and the reinforcing beam frames extend to the lower end of the support frame structure respectively. However, the various parts of the chassis frame structure of this electric tricycle are connected and installed using a hard connection structure. When the vehicle turns, the centrifugal force cannot be offset, and the vehicle is prone to rollover. When the vehicle encounters an obstacle while driving, the shock absorption effect is poor, which affects the driving stability and comfort of the electric tricycle. Utility Model Content

[0004] The utility model aims to provide an electric tricycle chassis with a suspension structure.

[0005] In order to achieve the above purpose, the technical solution proposed by the utility model is:

[0006] An electric tricycle chassis with a suspension structure includes a chassis body, which is arranged at the bottom of the electric tricycle, and also includes a mounting mechanism for providing mounting support for a drive device, a suspension mechanism for forming a suspension structure, and a buffer mechanism for providing buffer support for the suspension mechanism. The mounting mechanism is arranged at one end of the chassis body, the suspension mechanism is assembled on the side of the chassis body, and the buffer mechanism is configured on the inner side of the suspension mechanism.

[0007] The mounting mechanism includes a mounting connecting frame, a mounting base and a mounting base, wherein the mounting connecting frame is arranged at one end of the chassis body and is fixedly connected to the chassis body, the mounting base is arranged at one end of the mounting connecting frame away from the chassis body and is fixedly connected to the mounting connecting frame, and the mounting base is provided with two groups, the two groups of mounting bases are symmetrically arranged on both sides of the upper part of the mounting base and are fixedly connected to the mounting base, and the driving device is assembled on the mounting base through the mounting base.

[0008] The suspension mechanism includes a mounting suspension, a suspension main shaft, a support assembly and a suspension assembly. The mounting suspension is arranged at the inner middle part of the chassis body and is fixedly connected to the chassis body. The suspension main shaft is arranged at the lower part of the mounting suspension and is rotatably connected to the mounting suspension through a bearing. The suspension main shaft is transmission-connected to a driving device through a transmission shaft. The support assembly is arranged at the end of the suspension main shaft, and the suspension assembly is configured on a side of the support assembly away from the suspension main shaft.

[0009] The support assembly includes a support strut and a support beam. The support struts are provided with two groups, and the two groups of support struts are arranged side by side and spaced apart. The support beam is arranged between the two groups of support struts and its two ends are respectively fixedly connected to the two groups of support struts. The end of the suspension main shaft is connected to the middle part of the support beam.

[0010] The suspension assembly includes a supporting suspension and a connecting suspension. The supporting suspension is provided with two groups. The two groups of supporting suspensions are respectively arranged on the side of the two groups of supporting struts away from the suspension main axis and are rotatably connected with the corresponding supporting struts. The connecting suspension is arranged at one end of the two groups of supporting suspensions away from the supporting struts and its two ends are respectively rotatably connected with the two groups of supporting suspensions. The connecting suspension is located between the two groups of supporting suspensions.

[0011] It also includes a suspension coupling, which is arranged between the supporting crossbeam and the connecting suspension and whose two ends are rotationally connected to the supporting crossbeam and the connecting suspension respectively through transmission parts. The end of the suspension coupling close to the supporting crossbeam is transmission-connected to the end of the suspension main shaft through a transmission part.

[0012] It also includes a movable roller, which is arranged in the middle of a side of the connecting suspension away from the suspension coupling and connected to the connecting suspension. The movable roller is transmission-connected to an end of the suspension coupling close to the connecting suspension through a transmission member.

[0013] The buffer mechanism includes a buffer hydraulic rod, a buffer spring and a buffer connecting piece. The buffer hydraulic rod is arranged between the two groups of support suspensions and one end of the buffer hydraulic rod is rotatably connected to the middle part of one group of the support suspensions. The buffer spring is sleeved on the outside of the buffer hydraulic rod and the two ends of the buffer hydraulic rod are respectively fixedly connected to the two ends of the buffer hydraulic rod. The buffer connecting piece is arranged at one end of the other group of support suspensions close to the support support rod and is fixedly connected to the support suspension. The output end of the buffer hydraulic rod is rotatably connected to the buffer connecting piece.

[0014] The suspension mechanism and the buffer mechanism are both provided with two groups, and the two groups of suspension mechanisms and the two groups of buffer mechanisms are symmetrically arranged on both sides of the lower part of the chassis body. The chassis body is erected on the ground through the suspension mechanism and the buffer mechanism.

[0015] The chassis body, the mounting connection frame and the mounting base frame together form an airfoil expansion chassis structure.

[0016] The beneficial effects of the utility model are:

[0017] An installation mechanism is provided, which together with the chassis body constitutes a segmented chassis structure, which can ensure the overall strength of the chassis while meeting the installation requirements of the drive equipment. A suspension mechanism and a buffer mechanism are provided to cooperate to form a suspension structure with a buffer function, thereby buffering the wheel and the chassis. When the vehicle turns, part of the centrifugal force can be offset to avoid the vehicle rolling over. When the vehicle encounters an obstacle while driving, the shock-absorbing effect is strong, which can effectively improve the shock-absorbing and buffering capacity of the bucket part of the electric tricycle, thereby improving the driving stability and comfort of the electric tricycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a top view of the utility model;

[0020] Figure 3 It is a schematic diagram of the cooperation between the support assembly and the suspension assembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the cooperation between the mobile roller and the suspension mechanism of the utility model;

[0022] Figure 5 It is a schematic diagram of the cooperation between the buffer mechanism and the suspension mechanism of the utility model.

[0023] In the figure: 1. chassis body; 2. installation connecting frame; 3. installation base frame; 4. installation base; 5. installation suspension; 6. suspension main shaft; 7. support strut; 8. support beam; 9. support suspension; 10. connection suspension; 11. suspension coupling; 12. moving roller; 13. buffer pressure rod; 14. buffer spring; 15. buffer connecting plate. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] An electric tricycle chassis with a suspension structure includes a chassis body 1, which is arranged at the bottom of the electric tricycle, and also includes a mounting mechanism for providing mounting support for a drive device, a suspension mechanism for constituting a suspension structure, and a buffer mechanism for providing buffer support for the suspension mechanism. The mounting mechanism is arranged at one end of the chassis body 1, the suspension mechanism is assembled on the side of the chassis body 1, and the buffer mechanism is arranged on the inner side of the suspension mechanism. The overall structural schematic diagram of the utility model is as shown in FIG. Figure 1 shown.

[0026] The mounting mechanism includes a mounting connection frame 2, a mounting base frame 3 and a mounting base 4. The mounting connection frame 2 is arranged at one end of the chassis body 1 and is fixedly connected to the chassis body 1. The mounting base frame 3 is arranged at one end of the mounting connection frame 2 away from the chassis body 1 and is fixedly connected to the mounting connection frame 2. The mounting base 4 is provided with two groups. The two groups of mounting bases 4 are symmetrically arranged on both sides of the upper part of the mounting base frame 3 and are fixedly connected to the mounting base frame 3. The driving device is assembled on the mounting base frame 3 through the mounting base 4. The chassis body 1, the mounting connection frame 2 and the mounting base frame 3 together constitute an airfoil expansion chassis structure. The mounting mechanism is assembled on the mounting base frame 3 through the mounting connection frame 2, the mounting base frame 3 and the mounting base frame 3. The mounting frame 3 and the mounting base 4 cooperate to form a mounting structure at one end of the chassis body 1, thereby providing mounting support for the driving device of the electric tricycle, wherein the mounting connecting frame 2 is used to provide mounting support for the mounting base 3, and the mounting base 3 is used to form an airfoil expansion chassis structure together with the mounting connecting frame 2 and the chassis body 1, thereby providing mounting support for the mounting base 4. The airfoil expansion chassis structure can ensure the overall strength of the chassis while meeting the installation requirements of the driving device. The mounting base 4 is used to provide mounting support for the driving device to achieve the installation connection between the driving device and the mounting base 3. The top view of the utility model is shown in FIG. Figure 2 shown.

[0027] The suspension mechanism includes a mounting suspension 5, a suspension main shaft 6, a support assembly and a suspension assembly. The mounting suspension 5 is arranged at the inner middle part of the chassis body 1 and is fixedly connected to the chassis body 1. The suspension main shaft 6 is arranged at the lower part of the mounting suspension 5 and is rotatably connected to the mounting suspension 5 through a bearing. The suspension main shaft 6 is transmission-connected to the driving device through a transmission shaft. The support assembly is arranged at the end of the suspension main shaft 6. The suspension assembly is arranged on the side of the support assembly away from the suspension main shaft 6. The suspension mechanism cooperates with the mounting suspension 5, the suspension main shaft 6, the support assembly and the suspension assembly to form a chassis. The suspension structure at the lower part of the body 1 is used to install and connect the wheel to the chassis, wherein the installation suspension 5 is used to provide installation support for the suspension main shaft 6 so as to install the suspension main shaft 6 at the lower part of the chassis body 1, and the suspension main shaft 6 is used to rotate under the action of the driving device, thereby driving the mobile roller 12 to rotate through the suspension coupling 11, thereby driving the electric tricycle, and the support assembly is used to provide installation support for the suspension assembly, and the suspension assembly is used to form the suspension structure at the lower part of the chassis body 1 together with the support assembly. The schematic diagram of the cooperation between the support assembly and the suspension assembly of the utility model is shown in Figure 3 shown.

[0028] The support assembly includes a support strut 7 and a support beam 8. There are two groups of support struts 7, and the two groups of support struts 7 are arranged side by side and spaced apart. The support beam 8 is arranged between the two groups of support struts 7 and its two ends are respectively fixedly connected to the two groups of support struts 7. The end of the suspension main shaft 6 is connected to the middle of the support beam 8. The support assembly cooperates with the support strut 7 and the support beam 8 to provide installation support for the suspension assembly so that the suspension assembly can be installed on the lower part of the chassis body 1, wherein the support strut 7 is used to provide installation support for the support beam 8, and the support beam 8 is used to connect the two groups of support struts 7 to form an I-shaped support structure.

[0029] The suspension assembly includes a supporting suspension 9 and a connecting suspension 10. The supporting suspension 9 is provided with two groups. The two groups of supporting suspensions 9 are respectively arranged on the side of the two groups of supporting struts 7 away from the suspension main shaft 6 and are rotatably connected with the corresponding supporting struts 7. The connecting suspension 10 is arranged at one end of the two groups of supporting suspensions 9 away from the supporting struts 7 and its two ends are respectively rotatably connected with the two groups of supporting suspensions 9. The connecting suspension 10 is located between the two groups of supporting suspensions 9. The suspension assembly cooperates with the supporting suspension 9 and the connecting suspension 10 to form a suspension structure at the lower part of the chassis body 1 together with the supporting assembly, thereby providing installation support for the movable roller 12, wherein the supporting suspension 9 is used to provide installation support for the connecting suspension 10 and connect the connecting suspension 10 to the supporting strut 7, and the connecting suspension 10 is used to form a suspension structure at the lower part of the chassis body 1 together with the supporting suspension 9 and the supporting assembly, thereby providing installation support for the movable roller 12.

[0030] It also includes a suspension coupling 11, which is arranged between the supporting beam 8 and the connecting suspension 10 and whose two ends are rotationally connected to the supporting beam 8 and the connecting suspension 10 respectively through transmission parts. The end of the suspension coupling 11 close to the supporting beam 8 is transmission-connected to the end of the suspension main shaft 6 through a transmission part, wherein the suspension coupling 11 is used to transmission-connect the suspension main shaft 6 with the movable roller 12.

[0031] The electric tricycle further includes a moving roller 12, which is arranged at the middle of a side of the connecting suspension 10 away from the suspension coupling 11 and connected to the connecting suspension 10. The moving roller 12 is connected to the end of the suspension coupling 11 close to the connecting suspension 10 through a transmission member, wherein the moving roller 12 is used to rotate under the action of the suspension main shaft 6 and the suspension coupling 11, thereby driving the electric tricycle to move. The schematic diagram of the cooperation between the moving roller 12 and the suspension mechanism of the utility model is shown in FIG. Figure 4 shown.

[0032] The buffer mechanism includes a buffer hydraulic rod 13, a buffer spring 14 and a buffer connecting piece 15. The buffer hydraulic rod 13 is arranged between the two groups of supporting suspensions 9 and one end thereof is rotatably connected to the middle part of one group of supporting suspensions 9. The buffer spring 14 is sleeved on the outside of the buffer hydraulic rod 13 and its two ends are respectively fixedly connected to the two ends of the buffer hydraulic rod 13. The buffer connecting piece 15 is arranged at one end of another group of supporting suspensions 9 close to the supporting support rod 7 and is fixedly connected to the supporting suspension 9. The output end of the buffer hydraulic rod 13 is rotatably connected to the buffer connecting piece 15. The buffer mechanism cooperates with the buffer hydraulic rod 13, the buffer spring 14 and the buffer connecting piece 15 to provide buffer support for the connecting suspension 10. The buffer hydraulic rod 13 is used to provide buffer support for the connecting suspension 10. The buffer spring 14 is used to form a composite buffer structure together with the buffer hydraulic rod 13. The buffer connecting piece 15 is used to provide installation support for the buffer hydraulic rod 13 so as to arrange the buffer hydraulic rod 13 between the two groups of supporting suspensions 9. The schematic diagram of the cooperation between the buffer mechanism and the suspension mechanism of the utility model is shown in the figure Figure 5 shown.

[0033] There are two groups of suspension mechanisms and buffer mechanisms, which are symmetrically arranged on both sides of the lower part of the chassis body 1. The chassis body 1 is erected on the ground through the suspension mechanisms and buffer mechanisms.

[0034] Working principle:

[0035] The mounting mechanism and the chassis body 1 together constitute an airfoil expansion chassis structure, which ensures the overall strength of the chassis while meeting the installation requirements of the drive equipment. When assembling the chassis of the electric tricycle, the drive equipment is mounted on the mounting mechanism, and the buffer mechanism is assembled on the inner side of the suspension mechanism to form a buffer suspension structure. The suspension mechanism is mounted on the lower part of the chassis body 1 and the movable roller 12 is mounted on the end of the suspension mechanism away from the chassis body 1. The assembly of the electric tricycle chassis can be completed. During the travel of the electric tricycle, when the vehicle turns, the suspension structure with a buffering function can offset part of the centrifugal force and prevent the vehicle from rolling over. When the vehicle encounters an obstacle while driving, the buffer mechanism can reduce the vibration transmitted from the wheel to the chassis, thereby improving the shock absorption effect of the chassis, and then improving the shock absorption and buffering capacity of the bucket part of the electric tricycle.

[0036] The beneficial effect of the utility model is that an installation mechanism is provided, which together with the chassis body constitutes a segmented chassis structure, which can ensure the overall strength of the chassis while meeting the installation requirements of the drive equipment. A suspension mechanism and a buffer mechanism are provided to cooperate to form a suspension structure with a buffer function, thereby buffering the wheel and the chassis. When the vehicle turns, part of the centrifugal force can be offset to avoid the vehicle rolling over. When the vehicle encounters an obstacle while driving, the shock-absorbing effect is strong, which can effectively improve the shock-absorbing and buffering capacity of the bucket part of the electric tricycle, thereby improving the driving stability and comfort of the electric tricycle.

[0037] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An electric tricycle chassis with a suspension structure, comprising a chassis body (1), wherein the chassis body (1) is arranged at the bottom of the electric tricycle, and characterized in that: It also includes a mounting mechanism for providing mounting support for the drive device, a suspension mechanism for forming a suspension structure, and a buffer mechanism for providing buffer support for the suspension mechanism. The mounting mechanism is arranged at one end of the chassis body (1), the suspension mechanism is mounted on the side of the chassis body (1), and the buffer mechanism is arranged on the inner side of the suspension mechanism.

2. The electric tricycle chassis with a suspension structure as claimed in claim 1, characterized in that: The mounting mechanism comprises a mounting connection frame (2), a mounting base frame (3) and a mounting base (4); the mounting connection frame (2) is arranged at one end of the chassis body (1) and is fixedly connected to the chassis body (1); the mounting base frame (3) is arranged at one end of the mounting connection frame (2) away from the chassis body (1) and is fixedly connected to the mounting connection frame (2); the mounting base (4) is provided with two groups, the two groups of mounting bases (4) are symmetrically arranged on both sides of the upper part of the mounting base frame (3) and are fixedly connected to the mounting base frame (3); and the driving device is assembled on the mounting base frame (3) through the mounting base (4).

3. The electric tricycle chassis with a suspension structure as claimed in claim 2, characterized in that: The suspension mechanism comprises a mounting suspension (5), a suspension main shaft (6), a support assembly and a suspension assembly, wherein the mounting suspension (5) is arranged at the middle inner side of the chassis body (1) and is fixedly connected to the chassis body (1), the suspension main shaft (6) is arranged at the lower part of the mounting suspension (5) and is rotationally connected to the mounting suspension (5) via a bearing, the suspension main shaft (6) is transmission-connected to a driving device via a transmission shaft, the support assembly is arranged at the end of the suspension main shaft (6), and the suspension assembly is arranged on a side of the support assembly away from the suspension main shaft (6).

4. The electric tricycle chassis with a suspension structure as claimed in claim 3, characterized in that: The support assembly comprises a support strut (7) and a support crossbeam (8), wherein the support strut (7) is provided with two groups, the two groups of the support struts (7) are arranged side by side and spaced apart, the support crossbeam (8) is arranged between the two groups of the support struts (7) and its two ends are respectively fixedly connected to the two groups of the support struts (7), and the end of the suspension main shaft (6) is connected to the middle of the support crossbeam (8).

5. The electric tricycle chassis with a suspension structure as claimed in claim 4, characterized in that: The suspension assembly comprises a supporting suspension (9) and a connecting suspension (10), wherein the supporting suspension (9) is provided with two groups, wherein the two groups of supporting suspensions (9) are respectively arranged on a side of the two groups of supporting struts (7) away from the suspension main shaft (6) and are rotatably connected to the corresponding supporting struts (7), wherein the connecting suspension (10) is arranged at one end of the two groups of supporting suspensions (9) away from the supporting struts (7) and its two ends are respectively rotatably connected to the two groups of supporting suspensions (9), and wherein the connecting suspension (10) is located between the two groups of supporting suspensions (9).

6. The electric tricycle chassis with a suspension structure as claimed in claim 5, characterized in that: It also includes a suspension coupling (11), which is arranged between the supporting crossbeam (8) and the connecting suspension (10) and has two ends which are rotatably connected to the supporting crossbeam (8) and the connecting suspension (10) respectively through transmission members, and one end of the suspension coupling (11) close to the supporting crossbeam (8) is transmission-connected to the end of the suspension main shaft (6) through a transmission member.

7. The electric tricycle chassis with a suspension structure as claimed in claim 6, characterized in that: It also includes a movable roller (12), which is arranged in the middle of a side of the connecting suspension (10) away from the suspension coupling (11) and is connected to the connecting suspension (10), and the movable roller (12) is transmission-connected to an end of the suspension coupling (11) close to the connecting suspension (10) via a transmission member.

8. The electric tricycle chassis with a suspension structure as claimed in claim 7, characterized in that: The buffer mechanism comprises a buffer hydraulic rod (13), a buffer spring (14) and a buffer connecting piece (15); the buffer hydraulic rod (13) is arranged between the two groups of the support suspensions (9) and one end of the buffer hydraulic rod is rotatably connected to the middle of one group of the support suspensions (9); the buffer spring (14) is sleeved on the outside of the buffer hydraulic rod (13) and the two ends of the buffer hydraulic rod (13) are respectively fixedly connected to the two ends of the buffer hydraulic rod (13); the buffer connecting piece (15) is arranged on one end of the other group of the support suspensions (9) close to the support rod (7) and is fixedly connected to the support suspension (9); the output end of the buffer hydraulic rod (13) is rotatably connected to the buffer connecting piece (15).

9. The electric tricycle chassis with a suspension structure as claimed in claim 8, characterized in that: The suspension mechanism and the buffer mechanism are each provided with two groups, and the two groups of suspension mechanisms and the two groups of buffer mechanisms are symmetrically arranged on both sides of the lower part of the chassis body (1), and the chassis body (1) is erected on the ground through the suspension mechanism and the buffer mechanism.

10. The electric tricycle chassis with a suspension structure as claimed in claim 9, characterized in that: The chassis body (1), the mounting connection frame (2) and the mounting base frame (3) together form an airfoil expansion chassis structure.

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