CN215851654U - Rear suspension assembly of electric tricycle - Google Patents
Rear suspension assembly of electric tricycle Download PDFInfo
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- CN215851654U CN215851654U CN202122298107.7U CN202122298107U CN215851654U CN 215851654 U CN215851654 U CN 215851654U CN 202122298107 U CN202122298107 U CN 202122298107U CN 215851654 U CN215851654 U CN 215851654U
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- connecting rod
- rear wheel
- rod
- rocker
- wheel mounting
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Abstract
The utility model relates to a rear suspension assembly of an electric tricycle, which comprises a rear bottom fork, wherein connecting rod assemblies are symmetrically arranged on two sides of the rear bottom fork, each group of connecting rod assemblies is provided with a wheel and a motor corresponding to the wheel, each connecting rod assembly comprises a connecting rod mounting seat buckled on the rear bottom fork and transmission connecting rods hinged to two ends of the connecting rod mounting seat, a rear wheel mounting plate is hinged between the end parts of the two transmission connecting rods departing from the connecting rod mounting seats, the wheels are arranged on the rear wheel mounting plate, an elastic rod extends from one end of each transmission connecting rod, which deviates from the connecting rod mounting seats, one end of each elastic rod is rotatably connected with the corresponding transmission connecting rod through a joint bearing, and the other end of each elastic rod is rotatably connected with the corresponding rear bottom fork through the joint bearing. The utility model adopts two independent power systems to drive the wheels at two sides independently and increases the elasticity of the rear bottom fork, thereby improving the safety of vehicle turning.
Description
Technical Field
The utility model relates to the technical field of rear bottom forks of electric vehicles, in particular to a rear suspension assembly of an electric tricycle.
Background
Currently, most electro-tricycles on the market adopt a single motor and rear axle transmission mode. The single motor drives the differential bag on the rear axle to rotate, and then the differential bag drives the rear wheels on the left side and the right side to rotate. When the vehicle turns, the differential speed bag adjusts the rotating speed of the rear wheels at the left side and the right side according to the road condition, thereby achieving the purpose of stable running of the vehicle.
In the driving process, if large height difference occurs between contact points of the left and right rear wheels and the road surface, the conventional rear suspension structure adopts a flat plate type structure, the wheels on two sides can be contacted with the road surface only by inclining at a large angle, and the vehicle body is required to incline when the rear flat fork inclines at a large angle, so that the danger coefficient is high. Therefore, the balance of the vehicle body is difficult to ensure by the flat plate type rear bottom fork, and the vehicle is difficult to flexibly control when jolting occurs.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the defects in the prior art and provides an electric tricycle rear suspension assembly with a reasonable structure.
The technical scheme adopted by the utility model is as follows:
a rear suspension assembly of an electric tricycle comprises a rear bottom fork, connecting rod assemblies are symmetrically arranged on two sides of the rear bottom fork, each group of connecting rod assemblies is provided with a wheel and a motor corresponding to the wheel,
the connecting rod assembly comprises a connecting rod mounting seat buckled on the rear bottom fork and transmission connecting rods hinged at two ends of the connecting rod mounting seat, a rear wheel mounting plate is hinged and connected between the end parts of the two transmission connecting rods departing from the connecting rod mounting seat, the wheels are arranged on the rear wheel mounting plate,
an elastic rod is further extended from one end of the transmission connecting rod, which is far away from the connecting rod mounting seat, one end of the elastic rod is rotatably connected with the transmission connecting rod through a joint bearing, and the other end of the elastic rod is rotatably connected with the rear bottom fork through a joint bearing.
The rear bottom fork is provided with a rocker on one side deviating from the advancing direction of the tricycle, the rocker is perpendicular to the surface where the connecting rod assemblies on the two sides are located, reference bolts penetrate through the two ends of the rocker, and joint bearings on the elastic rods are sleeved on the reference bolts.
The rocker is hollow structure, and its both ends are uncovered and are set up, and the elastic rod is followed uncovered position and is stretched into in the rocker and cup jointed with the benchmark bolt.
The elastic rod comprises a pressure spring rotationally connected with the rocker and a rod body connected with the pressure spring, and the rod body is rotationally connected with the transmission connecting rod.
The transmission connecting rod that links to each other with the body of rod deviates from connecting rod mount pad one end and articulates there is the extension axle, extends axle one end and passes through joint bearing with the body of rod and rotate to be connected, and the other end is articulated with the rear wheel mounting plate.
The transmission connecting rod connected with the extension shaft is fixedly connected to the outer circle surface of the extension shaft, and the elastic rod and the rear wheel mounting plate are respectively positioned on two sides of the transmission connecting rod.
The connecting rod mounting seat adopts the section steel of personally submitting "U" shape in cross section, and the uncovered side of section steel is to the back chain stay, and the section steel sets up towards back chain stay one side indent, and interior notch is fixed in the side of back chain stay.
The rear wheel mounting panel is equilateral rounded triangle, and the rear wheel mounting panel is located the side mid point department between two transmission connecting rods of same group's link assembly, is equipped with the rear wheel installation cover, and the setting of rear wheel installation cover salient rear wheel mounting panel, and the keyway is reserved to the inner wall of rear wheel installation cover.
And a reinforcing bolt hinged with the rear bottom fork is arranged at the midpoint of the rocker.
The utility model has the following beneficial effects:
the four-bar mechanism is additionally arranged on two sides of the conventional rear bottom fork, namely the connecting rod assembly in the four-bar mechanism, so that wheels on two sides can be provided with independent driving devices, and the rear wheels on the left side and the right side can realize different rotating speeds according to the actual conditions of the road surface when the bicycle is ridden.
According to the utility model, a conventional rear bottom fork is changed into a movable bottom fork, the movable bottom fork can generate the characteristic of relative displacement in the vertical direction through the connecting rod assemblies on the two sides, the elastic rod and the rocker are assisted, so that wheels on the two sides can adapt to bumpy road surfaces with different heights under the condition that an electric tricycle turns or the road surface is uneven, and the two-side independent suspension structure adopts different moving ranges to adapt to road conditions according to the contact condition of the self and the road surface in the driving process, so that the balance of the whole tricycle is maintained, and the disturbance of the bumpy road surfaces is not easily caused.
Drawings
FIG. 1 is a top view of the present invention.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is a side view of the present invention.
Wherein: 1. a rear bottom fork; 2. a connecting rod assembly; 3. a rocker; 4. a reference bolt; 5. an extension shaft; 6. reinforcing the bolt;
201. a connecting rod mounting seat; 202. a transmission connecting rod; 203. a rear wheel mounting plate; 204. an elastic rod; 205. a knuckle bearing; 206. a pressure spring; 207. a rod body; 208. the rear wheel is provided with a sleeve.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1-3, the rear suspension assembly of the electric tricycle of the present embodiment includes a rear bottom fork 1, two sides of the rear bottom fork 1 are symmetrically provided with link assemblies 2, each link assembly 2 is provided with a wheel, the wheels in the present embodiment are driven by a traction motor integrated with the wheels, and the traction motor and the wheels are commercially available mature products, which is not described in detail herein.
The connecting rod assembly 2 comprises a connecting rod mounting seat 201 buckled on the rear bottom fork 1 and transmission connecting rods 202 hinged at two ends of the connecting rod mounting seat 201, a rear wheel mounting plate 203 is hinged between the end parts of the two transmission connecting rods 202 departing from the connecting rod mounting seat 201, wheels are arranged on the rear wheel mounting plate 203,
an elastic rod 204 extends from one end of the transmission connecting rod 202, which is away from the connecting rod mounting seat 201, one end of the elastic rod 204 is rotatably connected with the transmission connecting rod 202 through a joint bearing 205, and the other end of the elastic rod 204 is rotatably connected with the rear bottom fork 1 through the joint bearing 205.
The rear bottom fork 1 is equipped with rocker 3 on one side that deviates from the tricycle advancing direction, and rocker 3 perpendicular to both sides link assembly 2 face, and reference bolt 4 has been run through at rocker 3 both ends, and the joint bearing 205 cover on the elastic rod 204 is located on reference bolt 4.
The rocker 3 is connected to the two-sided elastic rod 204, thereby functioning to balance the two-sided link assembly 2. The knuckle bearing 205 having a lower vertical height is connected to the reference bolt 4.
The elastic rod 204 comprises a compression spring 206 rotatably connected with the rocker 3 and a rod body 207 connected with the compression spring 206, and the rod body 207 is rotatably connected with the transmission connecting rod 202.
One end of the transmission connecting rod 202 connected with the rod body 207, which is far away from the connecting rod mounting seat 201, is hinged with an extension shaft 5, one end of the extension shaft 5 is rotatably connected with the rod body 207 through a joint bearing 205, and the other end of the extension shaft is hinged with the rear wheel mounting plate 203.
The transmission link 202 connected to the extension shaft 5 is fixedly connected to the outer circumferential surface of the extension shaft 5, and the elastic rod 204 and the rear wheel mounting plate 203 are respectively located on both sides of the transmission link 202.
Connecting rod mount pad 201 adopts the transversal shaped steel of personally submitting "U" shape, and the uncovered side of shaped steel is to back chain stay 1, and shaped steel sets up towards 1 one side indent of back chain stay, and the side fixed connection of indent department and back chain stay 1 adopts the welded fastening mode in this embodiment.
The rear wheel mounting plate 203 is in the shape of an equilateral rounded triangle, the rear wheel mounting plate 203 is located at the middle point of the side edge between the two transmission connecting rods 202 of the same group of connecting rod assemblies 2, a rear wheel mounting sleeve 208 is arranged, the rear wheel mounting sleeve 208 protrudes out of the rear wheel mounting plate 203, and a key groove is reserved in the inner wall of the rear wheel mounting sleeve 208.
And a reinforcing bolt 6 hinged with the rear bottom fork 1 is arranged at the midpoint of the rocker 3.
The specific structure and working process of the embodiment are as follows:
the utility model is characterized in that two groups of connecting rod assemblies 2 are additionally arranged on two sides of a conventional planar rear bottom fork 1, each group of connecting rod assemblies 2 is formed by hinging four connecting rods, and the hinging positions among the connecting rods are shown in a partial section in figure 1 and are hinged and connected by adopting flange bearings 205. In the connecting rod assembly 2, two upper and lower transmission connecting rods 202 which tend to be horizontally arranged are included, two ends of the two transmission connecting rods 202 of the same connecting rod assembly 2 are respectively hinged and connected through a connecting rod mounting seat and a rear wheel mounting plate 203 to form a parallelogram, in the embodiment, the connecting rod mounting seat and the rear wheel mounting plate 203 are equivalent to two other connecting rods except the two transmission connecting rods 202 in a four-bar mechanism.
The connecting rod mount pad adopts the shaped steel that the cross section is "U" shape, and uncovered one side of shaped steel is towards back chain stay 1, sets up the recess of indent in uncovered one side of shaped steel, and the vertical direction height of recess just in time with the thickness looks adaptation of back chain stay 1 for connecting rod mount pad and back chain stay 1 are stable continuous, and the connecting rod mount pad is equivalent to the motion benchmark of connecting rod assembly 2.
Connecting rod assembly 2 deviates from connecting rod mount pad one end and is rear wheel mounting panel 203, is equipped with the member that is used for with other part looks adaptations on the apex angle of rear wheel mounting panel 203, is equipped with rear wheel installation cover 208 in the edge mid point position that the vertical direction of rear wheel mounting panel 203 set up, and the wheel is just installed on rear wheel installation cover 208.
At the top end of the rear wheel mounting plate 203, as oriented in fig. 2, there is attached an extension shaft 5 via a flange bearing 205, the purpose of the extension shaft 5 being to extend a distance towards the mid-point of the rocker for mounting a resilient bar 204 attached to the rocker.
The elastic rod 204 comprises, from top to bottom: the articulated bearing 205 is connected with the end part of the extension shaft 5, the rod body 207 is fixedly connected with the articulated bearing 205, the pressure spring 206 is fixedly and coaxially connected with the rod body 207, and the articulated bearing 205 is fixedly connected with the pressure spring 206, wherein the articulated bearing 205 at the lowest part is sleeved in the middle of the reference bolts 4 at the two ends of the rocker and just falls in the hollow inner cavity exposed from the openings at the two ends of the rocker.
During the running process of the electric tricycle, if a turning road condition is met, the rotating speeds of wheels on two sides are deviated, and at the moment, the adaptation of different speeds on two sides is realized through independent driving devices, such as motors, on two sides; when the road surface is uneven and bumpy, the wheels on the two sides can stably run on the road surface and cannot easily run empty or incline through the deformation capacity of the connecting rod assemblies 2 on the two sides and the elastic resetting force of the elastic rod 204, so that the riding safety of the electric tricycle is guaranteed.
The above description is intended to illustrate the present invention and not to limit the present invention, which is defined by the scope of the claims, and may be modified in any manner within the scope of the present invention.
Claims (9)
1. The utility model provides an electric tricycle rear suspension assembly, includes back chain stay (1), its characterized in that: the two sides of the rear bottom fork (1) are symmetrically provided with connecting rod assemblies (2), each group of connecting rod assemblies (2) is provided with a wheel and a motor corresponding to the wheel,
the connecting rod assembly (2) comprises a connecting rod mounting seat (201) buckled on the rear bottom fork (1) and transmission connecting rods (202) hinged at two ends of the connecting rod mounting seat (201), the end parts of the two transmission connecting rods (202) departing from the connecting rod mounting seat (201) are hinged and connected with a rear wheel mounting plate (203), wheels are arranged on the rear wheel mounting plate (203),
an elastic rod (204) extends from one end of the transmission connecting rod (202) departing from the connecting rod mounting seat (201), one end of the elastic rod (204) is rotatably connected with the transmission connecting rod (202) through a joint bearing (205), and the other end of the elastic rod is rotatably connected with the rear bottom fork (1) through the joint bearing (205).
2. The electro-tricycle rear suspension assembly of claim 1, wherein: back chain stay (1) deviates from tricycle direction of advance one side and is equipped with rocker (3), rocker (3) perpendicular to both sides link assembly (2) plane of place, and reference bolt (4) have been run through at rocker (3) both ends, and joint bearing (205) on elastic rod (204) are located on reference bolt (4) cover.
3. The electro-tricycle rear suspension assembly of claim 2, wherein: the rocker (3) is of a hollow structure, two ends of the rocker are arranged in an open mode, and the elastic rod (204) stretches into the rocker (3) from the open position to be sleeved with the reference bolt (4).
4. The electro-tricycle rear suspension assembly of claim 2, wherein: the elastic rod (204) comprises a pressure spring (206) rotationally connected with the rocker (3) and a rod body (207) connected with the pressure spring (206), and the rod body (207) is rotationally connected with the transmission connecting rod (202).
5. The electro-tricycle rear suspension assembly of claim 1, wherein: one end of a transmission connecting rod (202) connected with the rod body (207) and departing from the connecting rod mounting seat (201) is hinged with an extension shaft (5), one end of the extension shaft (5) is rotatably connected with the rod body (207) through a joint bearing (205), and the other end of the extension shaft is hinged with the rear wheel mounting plate (203).
6. The electro-tricycle rear suspension assembly of claim 5, wherein: the transmission connecting rod (202) connected with the extension shaft (5) is fixedly connected to the outer circle surface of the extension shaft (5), and the elastic rod (204) and the rear wheel mounting plate (203) are respectively positioned on two sides of the transmission connecting rod (202).
7. The electro-tricycle rear suspension assembly of claim 1, wherein: connecting rod mount pad (201) adopt the section steel of transversal personally submitting "U" shape, and the uncovered side of section steel is to back chain stay (1), and the section steel sets up towards back chain stay (1) one side indent, and the side of back chain stay (1) is fixed in to the indent department.
8. The electro-tricycle rear suspension assembly of claim 1, wherein: the rear wheel mounting plate (203) is an equilateral rounded triangle, the rear wheel mounting plate (203) is located at the middle point of the side edge between the two transmission connecting rods (202) of the same group of connecting rod assemblies (2), a rear wheel mounting sleeve (208) is arranged, the rear wheel mounting sleeve (208) protrudes out of the rear wheel mounting plate (203), and a key groove is reserved in the inner wall of the rear wheel mounting sleeve (208).
9. The electro-tricycle rear suspension assembly of claim 2, wherein: and a reinforcing bolt (6) hinged with the rear bottom fork (1) is arranged at the midpoint of the rocker (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122298107.7U CN215851654U (en) | 2021-09-22 | 2021-09-22 | Rear suspension assembly of electric tricycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122298107.7U CN215851654U (en) | 2021-09-22 | 2021-09-22 | Rear suspension assembly of electric tricycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215851654U true CN215851654U (en) | 2022-02-18 |
Family
ID=80255657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122298107.7U Active CN215851654U (en) | 2021-09-22 | 2021-09-22 | Rear suspension assembly of electric tricycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215851654U (en) |
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2021
- 2021-09-22 CN CN202122298107.7U patent/CN215851654U/en active Active
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