CN217328281U

CN217328281U - Swing arm type damping device

Info

Publication number: CN217328281U
Application number: CN202220280967.XU
Authority: CN
Inventors: 吴超
Original assignee: Nanjing Shanhang Intelligent Technology Co ltd
Current assignee: Nanjing Shanhang Intelligent Technology Co ltd
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2022-08-30
Anticipated expiration: 2032-02-11

Abstract

The utility model relates to a swing arm formula damping device, including swing arm (1), the one end of swing arm (1) is equipped with connecting hole (1 a), the other end even has axis of rotation (2), axis of rotation (2) stretch into in one installation cover (3), a dead lever (4) of installation cover (3) in-connection, dead lever (4) and the mutual parallel arrangement of axis of rotation (2), stretch into and connect a buffering circle (5) on axis of rotation (2) in installation cover (3), buffering circle (5) use axis of rotation (2) to wind outward gradually and spiral as the center, and its outermost end links to each other with dead lever (4). The utility model has the advantages that it is exquisite nimble, be favorable to the holistic weight that subtracts of running gear, reduce external environment greatly and to damper's harmful effects, guarantee its normal operating condition, improve buffering effect and life.

Description

Swing arm type damping device

Technical Field

The utility model belongs to the technical field of wheeled running gear shock attenuation equipment technique and specifically relates to a swing arm formula damping device.

Background

At present, in order to achieve the effect of buffering and shock absorption, a shock absorption mechanism, generally a spring shock absorber, is additionally arranged on a travelling mechanism, and the vibration of a frame and a vehicle body is weakened by utilizing the deformation and energy absorption of an elastic element after the elastic element receives impact, so that an operator feels more comfortable.

In some special fields, such as military troops, soldiers need to bear luggage and heavy combat equipment to move forward, in order to reduce the load of the soldiers and improve the marching efficiency, a single-soldier moped scooter appears on the market, but sometimes, the marching road is far away and the road condition is rugged and uneven, so that the moped can not be stable during driving, the soldiers can feel uncomfortable, and meanwhile, the transportation of materials is not facilitated, a spring mechanism is adopted for damping the vehicle body, although the bumping feeling can be reduced to a certain extent, the occupied space of the spring mechanism is large, so that the whole moped is heavy, flexible and delicate, and the spring mechanism is usually arranged on two sides of wheels and a chassis and belongs to an exposed part, so that the moped is easily influenced by the external environment, for example, on a wet muddy road, a part of soil or gravel can be rolled up along with the forward movement of the moped, and the spring mechanism is clamped in, so that the damping and buffering effect of the mechanism can be reduced undoubtedly, the normal work of the damping mechanism cannot be guaranteed, and much inconvenience is brought to later maintenance.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is exactly in order to solve current damper space occupancy height, easily receive objective environment influence and maintain inconvenient problem, provides a swing arm formula damping device, and not only exquisite flexibility avoids the holistic heavy of running gear, can reduce external environment moreover greatly to damping mechanism's harmful effects, maintains its normal work, improves buffering effect and life.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a swing arm type damping device comprises a swing arm, wherein one end of the swing arm is provided with a connecting hole, the other end of the swing arm is connected with a rotating shaft, the rotating shaft extends into an installation cover, an integrally formed shaft installation boss is arranged in the installation cover, the middle part of the shaft installation boss is provided with a shaft hole matched with the rotating shaft, and the rotating shaft penetrates through the shaft hole and extends into the installation cover;

the dead lever of installation cover in-connection, the dead lever is parallel to each other with the axis of rotation setting, stretches into the interior rotation axis of installation cover and connects a buffering circle, and the buffering circle is the spiral spring circle, and the buffering circle uses the axis of rotation to coil outward gradually as the center, and its outermost end links to each other with the dead lever.

Furthermore, a fixing hole is formed in the mounting cover, the fixing hole is formed in one side of the shaft mounting boss, and the fixing rod is connected into the fixing hole.

Furthermore, the size of shaft hole is the same with the external diameter size of axis of rotation, and the axis of rotation just in time imbeds in the shaft hole, and the axis in shaft hole is parallel to each other with the axis of dead lever.

Furthermore, a sliding bearing is nested on the shaft hole, and the rotating shaft is connected with the shaft hole through the sliding bearing.

Further, the tip of axis of rotation includes two relative straight sections and two relative segmental arcs, and the junction of straight section and segmental arc is equipped with the corner, and the inner circle of buffering circle twines along the surface of straight section and segmental arc to be used for increasing the joint strength between buffering circle and the axis of rotation, avoid the relative slip that the full cambered surface caused.

Compared with the prior art, the technical scheme of the utility model the advantage specifically lie in:

(1) the original exposed spring structure is changed, the buffer mechanism is directly connected with the rotating shaft and is arranged in the mounting cover, the structure is more exquisite and flexible, the occupied space is small, and the whole vehicle body is simpler;

(2) the adverse effect of an external objective environment on the buffer mechanism is reduced, and the buffer ring can be effectively protected in a muddy pothole ponding road section, so that the service life of the buffer ring is prolonged, and the buffer effect of the buffer ring is ensured;

(3) the connecting end part of the rotating shaft and the buffer ring abandons the traditional arc surface design, but changes a non-arc surface with a turn, so that the friction force between the buffer ring and the rotating shaft can be increased, the connecting strength of the buffer ring and the rotating shaft is increased, the relative sliding phenomenon of the buffer ring and the rotating shaft can be ensured not to occur under the condition of larger stress, and the buffer effect is further improved;

(4) the spring hook is hooked on the fixed rod, so that longitudinal limitation can be performed on the spring hook, and meanwhile, the shells on two sides of the fixed rod can also perform transverse limitation on the spring hook, so that the whole mechanism can be buffered in two directions, and the damping effect is better.

Drawings

Fig. 1 is an external structural view of a swing arm type damping device of the present invention;

fig. 2 is an internal structure view of a swing arm type damping device of the present invention;

fig. 3 is a perspective view of the mounting cover of the present invention.

Detailed Description

Example 1

In order to make the present invention more clearly understood, the following description is made in conjunction with the accompanying drawings to further explain the swing arm type damping device of the present invention, and the embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.

Referring to fig. 1 and 2, a swing arm type damping device is characterized in that:

the device comprises a swing arm 1, wherein one end of the swing arm 1 is provided with a connecting hole 1a, the other end of the swing arm is connected with a rotating shaft 2, and the rotating shaft 2 extends into an installation cover 3;

referring to fig. 1 and 3, an integrally formed shaft mounting boss 31 is arranged in the mounting cover 3, a shaft hole 31a matched with the rotating shaft 2 is arranged in the middle of the shaft mounting boss 31, and the rotating shaft 2 penetrates through the shaft hole 31a and extends into the mounting cover 3;

the size of the shaft hole 31a is the same as the outer diameter of the rotating shaft 2, and the rotating shaft 2 is just embedded into the shaft hole 31 a;

a fixing hole 3a is further formed in the mounting cover 3, the fixing hole 3a is formed in the side upper portion of the shaft mounting boss 31, a fixing rod 4 is connected into the fixing hole 3a, and the fixing rod 4 and the axis of the rotating shaft 2 are arranged in parallel;

the rotating shaft 2 extending into the mounting cover 3 is connected with a buffer ring 5, the buffer ring 5 is a volute spring ring, the buffer ring 5 is gradually wound and coiled outwards by taking the rotating shaft 2 as the center, and the outermost end of the buffer ring 5 is connected with the fixed rod 4;

referring to fig. 1 and 2, the end of the rotating shaft 2 includes two opposite straight sections 2a and two opposite arc sections 2b, a corner 2c is provided at the joint of the straight section 2a and the arc section 2b, and the inner ring of the cushion collar 5 is wound and connected along the surfaces of the straight section 2a and the arc section 2b, so as to increase the connection strength between the cushion collar and the rotating shaft and avoid relative sliding caused by a full arc surface.

The utility model discloses in, can the tractive buffering circle 5 on it when axis of rotation 2 rotates together to circle the rotation, because the outermost end of buffering circle 5 links to each other with dead lever 4, consequently, at 2 pivoted in-process of axis of rotation, buffering circle 5 can follow the tensioning, form one with 2 rotation opposite direction's of axis of rotation drag power to reach the absorbing purpose of buffering.

The utility model discloses a shock-absorbing structure occupation space is little, makes whole automobile body succinct exquisiteness more, has avoided external objective environment to buffer gear's harmful effects, has effectively protected the buffering circle, prolongs its life, has improved buffering effect.

In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides a swing arm formula damping device which characterized in that:

the swing arm comprises a swing arm (1), wherein one end of the swing arm (1) is provided with a connecting hole (1 a), the other end of the swing arm is connected with a rotating shaft (2), the rotating shaft (2) extends into an installation cover (3), an integrally formed shaft installation boss (31) is arranged in the installation cover (3), the middle part of the shaft installation boss (31) is provided with a shaft hole (31 a) matched with the rotating shaft (2), and the rotating shaft (2) penetrates through the shaft hole (31 a) and extends into the installation cover (3);

the installation cover (3) in-connection dead lever (4), dead lever (4) and the mutual parallel arrangement of axis of rotation (2), stretch into and connect one buffering circle (5) on axis of rotation (2) in the installation cover (3), buffering circle (5) are the spiral spring circle, and buffering circle (5) use axis of rotation (2) to coil outward gradually as the center, and its outermost end links to each other with dead lever (4).

2. The swing arm type damping device according to claim 1, wherein:

the mounting cover (3) is internally provided with a fixing hole (3 a), the fixing hole (3 a) is arranged on one side of the shaft mounting boss (31), and the fixing rod (4) is connected in the fixing hole (3 a).

3. The swing arm type damping device according to claim 1 or 2, wherein:

the size of shaft hole (31 a) is the same with the external diameter size of axis of rotation (2), and axis of rotation (2) just imbeds in shaft hole (31 a), and the axis of shaft hole (31 a) is parallel to each other with the axis of dead lever (4).

4. The swing arm type damping device according to claim 1 or 2, wherein:

the shaft hole (31 a) is nested with a sliding bearing, and the rotating shaft (2) is connected with the shaft hole (31 a) through the sliding bearing.

5. The swing arm type damping device according to claim 1 or 2, wherein:

the end part of the rotating shaft (2) comprises two opposite straight sections (2 a) and two opposite arc sections (2 b), a corner (2 c) is arranged at the joint of the straight sections (2 a) and the arc sections (2 b), and the inner ring of the buffer ring (5) is wound along the surfaces of the straight sections (2 a) and the arc sections (2 b).