TWM562808U - Multi-linkage mechanism - Google Patents

Abstract

The present invention relates to a multi-link mechanism, which is arranged on a locomotive. The locomotive comprises a frame, an engine assembly, a power transmission mechanism and a rear wheel. The multi-link mechanism comprises: a rear rocker arm assembly, A first connecting seat and a multi-link suspension assembly. The rear rocker arm assembly is pivoted on the engine assembly, the rear wheel is pivotally disposed on the rear rocker arm assembly, the first connecting seat is disposed on the rear rocker arm assembly, and the multi-link suspension assembly includes a first rod a second rod member and a shock absorber rod member, the two ends of the first rod member are respectively pivotally connected to one of the suspension rod member and the second rod member, and one of the frame and the engine assembly, the second rod The two ends of the member are respectively pivotally connected to one of the first rod member and the first connecting seat, and the suspension rod member is pivotally connected to the axis of the rear rod wheel away from the first rod member and the second rod member. Rocker arm assembly.

Description

Multi-link mechanism

The present invention relates to a multi-link mechanism, and more particularly to a multi-link mechanism provided with a first connecting seat.

The personal transportation vehicles commonly used today generally include automobiles and locomotives. The vehicles in the form of locomotives are vehicles driven by engines or motors, mainly using two-wheel, three-wheel or four-wheel vehicles with steering directions, because of simple operation and convenient operation. The low price features have become the most commonly used means of transportation.

Generally speaking, the engine assembly on the locomotive can be divided into a swing type and a fixed type. The swing type engine assembly pivotally connects the engine assembly to the frame, so that the engine assembly can swing freely relative to the pivot joint, and the fixed type The engine assembly is to fix the engine assembly on the frame, and separately set the rear rocker arm, the rear rocker arm is pivotally connected to the engine assembly, and the rear rocker arm can swing freely relative to the engine assembly. It can greatly reduce the load of the shock absorber, make the shock absorber more sensitive, and greatly improve the performance.

However, the suspension structure used in general fixed engine assemblies is a one-piece shock absorber that does not provide optimum ride comfort and handling stability, although conventional techniques utilize multi-link rear suspension systems. To improve ride comfort and control stability, but in the prior art, the multi-link structure is disposed at the pivot joint of the engine assembly and the rear rocker arm, and the multi-link structure is located below the shock absorber because The space is narrow, the angle and length of the multi-link structure can be limited, and the advantages of the multi-link structure cannot be fully utilized, and when the rear rocker arm always exhibits a similar Y-shaped structure design, the multi-link structure is not easy to be the most Installation at a good configuration angle makes the multi-link structure not working optimally.

Therefore, based on the spirit of active invention and creation, the creator conceived a multi-link structure, using the structural design of the first connecting seat, so that the rods of the multi-link suspension assembly can be parallel with the center line of the vehicle body. The multi-link suspension assembly can maximize the shock absorption effect, improve the locomotive performance and improve the ride comfort and control stability. After several research experiments, the creation is completed.

The main purpose of this creation is to provide a multi-link mechanism that utilizes the arrangement of the first connector to improve the suspension effect of the multi-link suspension assembly. The creator considers the following.

In order to achieve the above object, the multi-link mechanism of the present invention is disposed on a locomotive. The locomotive includes a frame, an engine assembly, a power transmission mechanism and a rear wheel. The engine assembly has a pivot for outputting power. The link mechanism includes: a rear rocker arm assembly, a first connecting seat and a multi-link suspension assembly. The rear rocker arm assembly is pivotally mounted on the engine assembly and is freely rotatable relative to the axis of the pivot shaft. The power transmission mechanism is disposed on the rear rocker arm assembly and is driven by the pivot shaft, and the rear wheel pivot is disposed on the rear rocker. The arm assembly is driven by the power transmission mechanism to rotate, and the first connecting seat is disposed on the rear rocker arm assembly, and the multi-link suspension assembly comprises a first rod member, a second rod member and a avoidance The two ends of the first rod are respectively pivotally connected to one of the suspension rod member and the second rod member and one of the frame and the engine assembly, and the two ends of the second rod member are respectively pivotally connected to the shock absorber rod And one of the first rod and the first connecting seat, and the one end of the shock absorbing rod away from the first rod and the second rod is pivotally connected to the rocker arm assembly adjacent to the axis of the rear wheel.

The creation may further include a second connecting seat disposed adjacent to the axis of the rear wheel, and the suspension rod member is pivotally disposed on the second connecting seat.

The first rod is projected onto the ground to form a first projection line, the first connecting seat is such that the second rod is projected onto the ground to form a second projection line, and the suspension rod is projected onto the ground to form a third projection line. The first projection line, the second projection line, and the third projection line may be parallel to each other.

The locomotive forms a body center line, and the projection line formed by the center line of the vehicle body projected onto the ground may be parallel to the third projection line.

The rear rocker arm assembly described above can be a similar Y-shaped rear rocker arm assembly.

The first connecting seat may further include a first locking portion, and the second rod member is pivotally connected to the first locking portion.

The first connecting base may further include a plurality of second locking portions, and the first connecting seat is fixed on the rear rocker arm assembly by the plurality of second locking portions.

The front end of the rear rocker arm assembly may further include a mounting portion, and the rear rocker arm assembly is pivoted on the engine assembly by the mounting portion, and the central axis of the mounting portion and the central axis of the pivot shaft may be located on the same axial center line. .

The shock absorber member may include a damper and a spring portion, and the damper is disposed through the spring portion.

The first frame, the rear rocker assembly, the first member, the second member, the damper and the spring portion of the frame and the engine assembly may form a six-link structure.

The above summary and the following detailed description are exemplary in order to further illustrate the scope of the patent application of the present invention, and other objects and advantages of the present invention will be explained in the following description and illustration.

Referring to FIG. 1 to FIG. 4 , FIG. 1 is a schematic structural view of the first embodiment of the multi-link mechanism of the present invention, another structural schematic diagram, and a schematic structural view and a top view of the multi-link suspension assembly. The first embodiment of the multi-link mechanism of the present invention is disposed on a locomotive. The locomotive includes a frame 11, an engine assembly 12, a power transmission mechanism 14, a rear wheel 15, a front wheel 17, and a storage box 20. The engine assembly 12 has an output power pivot 1231. The multi-link mechanism includes a rear rocker arm assembly 13, a multi-link suspension assembly 16, a first connector 18 and a second connection. Block 19.

As shown in FIG. 1, the axis C1 of the pivot 1231 and the axis C2 of the rear wheel 15 form an axial connection line L, and the multi-link suspension assembly 16 is located above the axial connection line L1, and the multi-link The suspension assembly 16 is disposed above the rear rocker arm assembly 13 and on the outer side of the rear wheel 15 and the storage compartment 20, whereby the multi-link suspension assembly 16 does not have space with the storage compartment 20 below the seat cushion. In conflict with each other, the vehicle space configuration can be more compact, the vehicle body structure can be reduced, the longitudinal space of the glove box 20 can be increased, assembly workability and maintenance convenience can be improved.

The engine assembly 12 is fixed on the frame 11, and includes a crank shaft 121, a belt transmission mechanism 122, a gear transmission mechanism 123 and two pistons 124. The crank shaft 121 is driven by the two pistons 124 to rotate. The belt transmission mechanism 122 Driven by the crankshaft 121, the utility model comprises a driving pulley 1221, a driven pulley 1222 and a belt 1223. The driving pulley 1221 is driven to rotate by the crank shaft 121 to drive the belt 1223 to rotate the driven pulley 1222.

The gear transmission mechanism 123 is a reduction gear set including a pivot 1231, a drive shaft 1232, a drive gear 1233, a reduction gear 1234 and a driven gear 1235. The drive shaft 1232 is driven by the driven pulley 1222 to drive the drive. The gear 1233 rotates, and the reduction gear 1234 is driven by the drive gear 1233 and drives the driven gear 1235 to rotate, so that the pivot 1231 rotates.

The rear rocker arm assembly 13 is a rocker arm assembly 13 that exhibits a similar Y-shaped structure, is pivotally mounted on the engine assembly 12, and is freely rotatable relative to the axis of the pivot 1231, including a left rocker arm 131 and a right The rocker arm 132, a mounting portion 133 and a connecting portion 134, the power transmission mechanism 14 is disposed adjacent to the left rocker arm 131 and is driven by the pivot 1231. The rear wheel 15 is pivotally disposed on the left rocker arm 131 and the right rocker arm 132. And rotated by the power transmission mechanism 14.

As shown in FIG. 2, the rear rocker arm assembly 13 is pivotally mounted on the engine assembly 12 by the mounting portion 133, and the central axis of the mounting portion 133 is on the same axis line as the central axis of the pivot 1231, and the connecting portion 134 is connected. The left rocker arm 131 and the right rocker arm 132, the left rocker arm 131 and the right rocker arm 132 form a diverging oblique structure adjacent to the connecting portion 134, and the left rocker arm 131 adjacent to the axial center of the rear wheel 15 and The right rocker arms 132 form approximately parallel structures, such that the rear rocker arm assembly 13 is formed into a Y-like structure, and the rear wheel 15 is thus smoothly sandwiched between the left rocker arm 131 and the right rocker arm 132.

The power transmission mechanism 14 is disposed adjacent to the left rocker arm 131 and is driven by the pivot shaft 1231. The power transmission mechanism 14 is a chain transmission mechanism including a driving sprocket 141, a driven sprocket 142 and a chain 143, and a chain. The drive 143 is driven by the drive sprocket 141 and drives the driven sprocket 142 to rotate.

The multi-link suspension assembly 16 includes a first rod member 161, a second rod member 162 and a suspension rod member 163. The two ends of the first rod member 161 are respectively pivotally connected to the suspension rod member 163 and the frame 11 respectively. The two ends of the second rod 162 are respectively pivotally connected to the suspension rod member 163 and the first connecting seat 18, and the suspension rod member 163 is pivotally connected to the rear end wheel 15 away from the first rod member 161 and the second rod member 162. The left rocker arm 131 of the shaft center includes a damper 1631 and a spring portion 1632. The damper 1631 is provided with a spring portion 1632. The front wheel 17 and the storage box 20 are connected to the frame 11.

As shown in FIG. 3, the first connecting seat 18 is disposed on the left rocker arm 131, and includes a first locking portion 181 and three second locking portions 182. The second rod 162 is pivotally connected to the first locking portion 181. The first connecting base 18 is fixed on the left rocker arm 131 by the three second locking portions 182, and the second connecting seat 19 is disposed adjacent to the axial center of the rear wheel 15, so that the suspension rod member 163 is pivoted on the The second connecting base 19, whereby the frame 11, the left rocker arm 131, the first rod 161, the second rod 162, the damper 1631 and the spring portion 1632 form a six-link structure, multi-link suspension Assembly 16 provides optimum shock absorption and improved ride comfort.

Next, as shown in FIG. 4, it can be seen that the first rod member 161 and the second rod member 162 are parallel to the body center line L2 formed by the locomotive. In detail, the first rod member 161 is projected onto the ground. a first projection line, the first connecting base 18 causes the second rod 162 to be orthographically projected on the ground to form a second projection line, and the suspension rod member 163 is projected onto the ground to form a third projection line, the first projection line, the first projection line The second projection line and the third projection line are parallel to each other, and the projection line formed by the body center line L2 being projected on the ground is parallel to the third projection line.

The projection lines formed by the first projection line, the second projection line, the third projection line, and the body center line L2 being projected on the ground are parallel to each other, and the first rod 161 and the first angle in the plan view angle of FIG. The two rod members 162 (not shown in FIG. 4), the suspension rod members 163 and the vehicle body center line L2 are also parallel to each other, that is, the first connecting seat 18 is disposed on the similar Y-shaped rear rocker arm assembly 13. The multi-link suspension assembly 16 can obtain an optimum structural arrangement angle (the first rod member 161, the second rod member 162, and the suspension rod member 163 are parallel to each other) to exert maximum shock absorbing effect.

5 and FIG. 6 are respectively a schematic structural view of a second embodiment of the multi-link mechanism of the present invention and a structural schematic diagram of the multi-link suspension assembly. The second embodiment of the present invention is substantially identical in structure to the first embodiment. The main difference is that the structure of the multi-link suspension assembly is different. In detail, as shown in FIG. 5 and FIG. 6, the multi-link The suspension assembly 16A includes a first rod member 161, a second rod member 162a and a suspension rod member 163. The two ends of the first rod member 161 are respectively pivotally connected to the second rod member 162a and the frame 11, respectively. The two ends of the rod member 162a are respectively pivotally connected to the first rod member 161 and the first connecting seat 18 of the left rocker arm 131. One end of the suspension rod member 163 is pivotally connected to the pivoting portion 1621 of the second rod member 162a, and the shock absorber member One end of the 163 away from the first rod member 161 and the second rod member 162 is pivotally connected to the second connecting seat 19 of the left rocker arm 131 adjacent to the axial center of the rear wheel 15. By adjusting the positions at which the first rod member 161, the second rod member 162a and the suspension rod member 163 are pivotally connected to each other, the adjustment of the riding comfort and the control stability of the locomotive is also more flexible.

In addition, in the first embodiment and the second embodiment of the multi-link mechanism of the present invention, the rear rocker arm assembly 13 is a double rocker arm structure including the left rocker arm 131 and the right rocker arm 132, and the multi-linkage The suspension assembly 16, 16A is disposed on the left rocker arm 131, but the creation is not limited to this, and the multi-link suspension assembly 16, 16A of the present invention can be applied to a locomotive having only a single rocker structure. It is obvious that the multi-link suspension assembly 16 is also provided on the left rocker arm 131 and the right rocker arm 132, and the 16A is also a simple change application for the creation.

It can be seen from the above that the present invention utilizes the first connecting seat 18 to improve the structural arrangement of the multi-link suspension assembly 16 on the similar Y-shaped rear rocker assembly 13, and also improves the suspension performance while also improving the suspension performance. Maximize the space of the storage compartment 18, improve the locomotive performance and improve ride comfort and handling stability.

The above-described embodiments are merely examples for convenience of description, and the scope of the claims is intended to be limited to the above embodiments.

11‧‧‧ frame
12‧‧‧ engine assembly
121‧‧‧ crankshaft
122‧‧‧Belt transmission mechanism
1221‧‧‧ drive pulley
1222‧‧‧ driven pulley
1223‧‧‧Land
123‧‧‧Gear transmission mechanism
1231‧‧‧ pivot
1232‧‧‧Drive shaft
1233‧‧‧ drive gear
1234‧‧‧Reduction gear
1235‧‧‧ driven gear
124‧‧‧Piston
13‧‧‧ rear rocker arm assembly
131‧‧‧ Left rocker
132‧‧‧Right rocker
133‧‧‧Installation Department
134‧‧‧Connecting Department
14‧‧‧Power Transmission Mechanism
141‧‧‧Drive sprocket
142‧‧‧ driven sprocket
143‧‧‧Chain
15‧‧‧ Rear wheel
16,16A‧‧‧Multi-link suspension assembly
161‧‧‧First member
162,162a‧‧‧second pole
1621‧‧‧ pivotal department
163‧‧‧Shocking rods
1631‧‧‧damper
1632‧‧‧Spring Department
17‧‧‧ Front wheel
18‧‧‧First connector
181‧‧‧First Locking Department
182‧‧‧Second Locking Department
19‧‧‧Second connector
20‧‧‧Ticket
C1, C2‧‧‧ axis
L1‧‧‧Axis connection
L2‧‧‧ body center line

1 is a schematic structural view of a first embodiment of the multi-link mechanism of the present invention. FIG. 2 is another schematic structural view of the first embodiment of the multi-link mechanism of the present invention. FIG. 3 is a schematic structural view of the multi-link suspension assembly of the first embodiment of the multi-link mechanism of the present invention. 4 is a top plan view of a first embodiment of the multi-link mechanism of the present invention. Fig. 5 is a schematic view showing the structure of a second embodiment of the multi-link mechanism of the present invention. 6 is a schematic structural view of a multi-link suspension assembly of a second embodiment of the multi-link mechanism of the present invention.

Claims (10)

A multi-link mechanism is disposed on a locomotive, the locomotive includes a frame, an engine assembly, a power transmission mechanism and a rear wheel, the engine assembly has a pivot for outputting power, the multi-link The mechanism includes: a rear rocker arm assembly pivotally mounted on the engine assembly and freely rotatable relative to an axis of the pivot shaft, the power transmission mechanism being disposed on the rear rocker arm assembly, and Driven by a pivot, the rear wheel is pivotally mounted on the rear rocker arm assembly and driven to rotate by the power transmission mechanism; a first connecting seat is disposed on the rear rocker arm assembly; The connecting rod suspension assembly comprises a first rod member, a second rod member and a suspension rod member, wherein the two ends of the first rod member are respectively pivotally connected to the suspension rod member and the second rod member And one of the frame and the engine assembly, the two ends of the second rod are respectively pivotally connected to the one of the suspension rod member and the first rod member and the first connecting seat, the avoidance The rear end of the rocker member away from the first rod member and the second rod member is pivotally connected to the rear rocker arm assembly adjacent to the rear wheel axle center . The multi-link mechanism of claim 1, further comprising a second connecting seat disposed adjacent to the axis of the rear wheel, the anti-shock member being pivotally disposed on the second connecting base. The multi-link mechanism of claim 1, wherein the first rod is projected onto the ground to form a first projection line, and the first connector is such that the second rod is orthographically projected on the ground to form a a second projection line, the suspension rod is projected on the ground to form a third projection line, and the first projection line, the second projection line and the third projection line are parallel to each other. The multi-link mechanism of claim 3, wherein the locomotive forms a body center line, and the projection line formed by the body center line being projected on the ground is parallel to the third projection line. The multi-link mechanism of claim 1, wherein the rear rocker arm assembly is a Y-shaped rear rocker arm assembly. The multi-link mechanism of claim 1, wherein the first connecting base further comprises a first locking portion, and the second connecting rod is pivotally connected to the first locking portion. The multi-link mechanism of claim 1, wherein the first connecting base further comprises a plurality of second locking portions, wherein the first connecting seat is fixed to the rear by the plurality of second locking portions Rocker arm assembly. The multi-link mechanism of claim 1, wherein the front end of the rear rocker arm assembly further includes a mounting portion, and the rear rocker arm assembly is pivotally mounted on the engine assembly by the mounting portion. And the central axis of the mounting portion is on the same axis line as the central axis of the pivot. The multi-link mechanism of claim 1, wherein the suspension rod member comprises a damper and a spring portion, the damper penetrating the spring portion. The multi-link mechanism of claim 9, wherein the frame and the engine assembly, the rear rocker assembly, the first member, the second member, the damping The spring and the spring portion form a six-link structure.