CN102616099B - Damping suspension frame device and walking machine - Google Patents

Abstract

The invention discloses a shock-absorbing suspension device, which can be used for walking machines. The shock-absorbing suspension device includes a shock-absorbing oil cylinder and a transition frame, the shock-absorbing oil cylinder is hinged to the frame body, and the transition frame is connected to the vehicle frame. The bridge is fixedly connected, and the upper part of the transition frame is hinged to the lower end of the shock absorber cylinder; one end of the transition frame in the horizontal direction is connected to a connecting rod component, and the other end of the connecting rod component is connected to the frame body . On the one hand, the shock-absorbing suspension device can ensure the shock-absorbing effect, coordination, stability and safety during driving, and on the other hand, can prolong the service life of the vehicle axle and the fixed connection between the vehicle axle and the transition frame. In addition, the invention also discloses a walking machine.

Description

A shock-absorbing suspension device and a walking machine

technical field

The invention relates to the shock absorbing field, in particular to a shock absorbing suspension device. In addition, the present invention also relates to a walking machine comprising the shock absorbing suspension device.

Background technique

With the rapid development of my country's economic construction, especially the continuous advancement of the urbanization process, the market demand for mechanical products, especially walking construction machinery products with walking operation capabilities, is increasing day by day.

Due to the high quality of walking construction machinery products, tires are severely worn during service. The axle has load-bearing and driving functions, and the safety of tires is extremely important. In order to find a reasonable solution in terms of wear resistance and safety, solid tires are mainly used to replace pneumatic tires in the prior art. Compared with pneumatic tires, solid tires can reduce the inconvenience caused by tire inflation and damage, but the shock absorption effect of the former is not ideal. Install this shock-absorbing suspension device to enhance the shock-absorbing effect. In the prior art, the principle of the shock-absorbing suspension device is shown in Figure 1: the axle 6 and the transition frame 5 are fixedly connected by connecting bolts 3 on both sides, and the transition frame 5 and the frame body 1 are hinged by pins 4 . The traction generated by the axle 6 can be transmitted to the frame body 1 through the transition frame 5 . The top of the transition frame 5 is connected with one end of the shock absorbing cylinder 2, and the other end of the shock absorbing cylinder 2 is connected with the frame body 1. The supporting force of the vehicle axle 6 to the vehicle frame body 1 is transmitted to the transition frame 5, and then transmitted to the vehicle frame body 1 after being damped by the shock-absorbing oil cylinder 2, so that the vehicle frame body vibrates in the vertical direction with little vibration and the driving is stable.

The inventor found that the shock absorbing suspension device has the following problems: when the road conditions are not ideal, the tires on both sides fluctuate greatly, and the displacement in the height direction of the two ends of the axle 6 cannot be smoothly transmitted, resulting in the connection between the transition frame 5 and the axle 6. The bolt 3 is under too much force and is easy to break. If the strength of the bolt 3 is strengthened, it will inevitably cause the axle 6 to be subjected to additional torque, which will affect its life.

In view of this, how to improve the shock-absorbing suspension device in the prior art, so as to ensure the shock-absorbing effect on the one hand, the coordination, stability and safety in the driving process, and extend the axle life on the other hand. The service life is an urgent problem to be solved by those skilled in the art.

Contents of the invention

The technical problem to be solved by the present invention is to provide a shock-absorbing suspension device. service life of the bridge. In addition, another technical problem to be solved by the present invention is to provide a walking machine.

In order to solve the above technical problems, the present invention provides a shock-absorbing suspension device; the shock-absorbing suspension device includes a shock-absorbing element, a first link part and a second link part, wherein the shock-absorbing element and the vehicle Frame body, axle up and down connection;

The first link part and the second link part are hingedly connected to the frame body and the axle to form a four-bar link structure;

There is an included angle between the four-link structure surface and the horizontal plane, and the included angle is greater than 0° and less than or equal to 90°.

It also includes a fourth link part, one end of the fourth link part is hinged with the vehicle axle, and the other end is hinged with the vehicle frame body, and the fourth link part is arranged in the direction of the two ends of the vehicle axle.

Preferably, the included angle between the four-link structure surface and the horizontal plane is 90°.

Preferably, the four-link structure formed by the first link part, the second link part, the frame body and the axle is a parallelogram.

Preferably, the shock-absorbing suspension device includes a transition frame, wherein the transition frame is fixedly connected to the axle;

The damping element is hingedly connected to the transition frame, thereby being hingedly connected to the vehicle axle;

The first connecting rod part and the second connecting rod part are hingedly connected to the transition frame to be hingedly connected to the vehicle axle.

Preferably, the transition frame is fixedly connected to the axle through connecting bolts.

Preferably, the shock-absorbing suspension device further includes a third link part, wherein the third link part is located in the same plane as the first link part and the second link part; The rod part is hingedly connected with the frame body and the transition frame; the frame body, the transition frame and the first link part, the second link part and the third link part form a parallelogram comprising two parallelograms. quadrilateral body.

Preferably, the hinge points between the frame body and the transition frame and the first link part, the second link part and the third link part are hingedly connected by joint bearings.

Preferably, the shock-absorbing suspension device further includes at least one pin shaft, and the pin shaft is located around the joint bearing.

Preferably, the shock-absorbing element is a shock-absorbing oil cylinder, and is hinged up and down with the frame body and the axle.

Preferably, the shock absorbing oil cylinder, the frame body or the axle are hingedly connected by joint bearings.

Preferably, at least one pin shaft is provided around the joint bearing.

In addition, in order to solve the above technical problems, the present invention also provides a walking machine, which includes a frame body and an axle; the walking machine also includes the shock absorbing suspension device described in any one of the above .

Preferably, the walking machine further includes a fourth link component, wherein both ends of the fourth link component are respectively arranged and connected to both ends of the axle, and at least one end is hingedly connected.

Preferably, the fourth connecting rod part is hingedly connected to the axle joint through a joint bearing.

Preferably, at least one pin shaft is provided around the joint bearing.

On the basis of the prior art, the shock absorbing suspension device provided by the present invention includes a shock absorbing element, a first link part and a second link part, wherein the shock absorbing element is connected with the frame body, the axle body, the upper and lower connect;

The first link part 8 and the second link part 9 are hingedly connected with the frame body 1 and the axle 6 to form a four-bar link structure;

There is an included angle between the four-link structure surface and the horizontal plane, and the included angle is greater than 0° and less than or equal to 90°.

The shock absorbing suspension device provided by the present invention is installed at both ends of the vehicle axle. During the driving process, since the shock absorbing element is connected up and down with the frame body and the vehicle axle, the support force of the vehicle axle to the vehicle body is passed through the shock absorbing oil cylinder. After shock absorption, it is transmitted to the frame body; thus, the vertical force of the frame body is stable, the vibration of the frame body in the vertical direction is small, and the driving is stable; the traction force of the axle to the frame body can be transmitted to the frame body through the connecting rod parts. frame body.

When the road conditions are not ideal, the tires on both sides fluctuate greatly, so that the horizontal heights of the two ends of the axle are different; the rotation of the first link part and the second link part can offset the additional bending moment caused by the displacement in the height direction of the axle , thus, compared with the prior art, the coordination and safety in the driving process are improved.

In the above technical solution, it should be noted that the damping suspension device provided by the present invention is only used at one end of the axle, which can also achieve the damping effect, which is foreseeable by those skilled in the art.

To sum up, the damping suspension device provided by the present invention can ensure the damping effect, coordination, stability and safety during driving on the one hand, and prolong the service life of the axle on the other hand.

In addition, the technical effect achieved by the shock-absorbing suspension device included in the walking machine provided by the present invention is the same as the above-mentioned technical effect, so it will not be repeated here.

Description of drawings

Fig. 1 is a side view structural schematic diagram of a shock-absorbing suspension device in the prior art;

Fig. 2 is a side view structural representation of the shock-absorbing suspension device in a preferred embodiment of the present invention;

Fig. 3 is a side view structural schematic diagram of the shock-absorbing suspension device in another preferred embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a walking machine including a shock-absorbing suspension device in another preferred embodiment of the present invention.

Wherein, the corresponding relationship between reference numerals and component names in Fig. 1 is:

1 frame body;

2 shock-absorbing cylinders;

3 connecting bolts;

4 connecting pins;

5 transition frame;

6 axles.

Wherein, the corresponding relationship between reference numerals and component names in Fig. 2 is:

1 frame body;

2 shock-absorbing cylinders;

3 connecting bolts;

6 axles;

7 Transition frame;

8 the first connecting rod part;

9 second connecting rod part;

10 Joint bearings.

Wherein, the corresponding relationship between reference numerals and component names in Fig. 3 is:

1 frame body;

2 shock-absorbing cylinders;

3 connecting bolts;

6 axles;

7 Transition frame;

10 joint bearings;

8 the first connecting rod part;

12 The third connecting rod part;

9 second connecting rod part;

14 Pin shaft.

Wherein, the corresponding relationship between reference numerals and component names in Fig. 4 is:

6 axles;

7 connecting frame;

10 joint bearings;

14 pin shaft;

15 Fourth linkage member.

Detailed ways

The core of the present invention is to provide a shock-absorbing suspension device. On the one hand, the shock-absorbing suspension device can ensure the shock-absorbing effect, coordination, stability and safety during driving, and can prolong the use of the axle on the other hand. life. In addition, another technical problem to be solved by the present invention is to provide a walking machine.

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Please refer to FIG. 2 . FIG. 2 is a schematic side view of the shock absorbing suspension device in an embodiment of the present invention.

In one embodiment, as shown in Figure 2, the shock absorbing suspension device provided by the present invention is suitable for walking machinery, and the walking machinery includes a vehicle axle 6 and a frame body 1; on the basis of the above structure, As shown in Figure 2, the shock absorbing suspension device includes a shock absorbing oil cylinder 2 and a transition frame 7, the upper end of the shock absorbing oil cylinder 2 is hinged with the frame body 1, the transition frame 7 is fixedly connected with the axle 6, and the transition frame 7 is directly above the shock absorber. The lower end of the shock cylinder 2 is hinged; one end of the transition frame 7 in the horizontal direction is hingedly connected with a first connecting rod part 8 and a second connecting rod part 9, and the first connecting rod part 8 and the second connecting rod part 9 are connected to the frame body 1, The 6 axles are hingedly connected to form a four-link structure;

There is an included angle between the four-bar linkage structure surface and the horizontal plane, and the included angle is equal to 90°;

The four-link structure formed by the first link member 8 , the second link member 9 , the frame body 1 and the axle 6 is a parallelogram.

Install the damping suspension device in the present embodiment on both ends of the vehicle axle. During the driving process, because the vehicle axle 6 is fixedly connected to the transition frame 7, the transition frame 7 is hinged with one end of the shock-absorbing oil cylinder 2 directly above, and the other end of the shock-absorbing oil cylinder 2 One end is hinged with the frame body 1, so that the support force of the axle 6 to the frame body 1 is transmitted to the frame body 1 after being transmitted by the transition frame 7 and damped by the shock absorbing cylinder 2; thus, the frame body 1 The force in the vertical direction is stable, the vibration of the axle in the vertical direction is small, and the driving is stable; the traction force of the axle 6 to the frame body 1 can be transmitted through the transition frame 7, and then transmitted through the first link part 8 and the second link part 9 Give frame body 1.

When the road conditions are not ideal, the tires on both sides fluctuate greatly, so that the horizontal heights of the two ends of the axle 6 are different; the rotation of the first link member 8 and the second link member 9 around the hinge point can offset the height of the axle 6 The additional bending moment caused by the directional displacement, therefore, compared with the prior art, the fixed connection between the vehicle axle 1 and the transition frame 7 is subject to a smaller shear force, thereby extending the vehicle axle 6, the vehicle axle 6 and the The transition frame 7 fixes the service life of the connection, and improves the coordination and safety during driving.

In this embodiment, the first link part 8, the second link part 9, the frame body 1, and the axle 6 form a parallelogram mechanism. Obviously, in the above-mentioned structural design, the parallelogram mechanism has higher flexibility and can better It absorbs impact energy efficiently and buffers vibrations, which is conducive to the stability of driving. The ability of the first link member 8 and the second link member 9 to offset the additional bending moment caused by the displacement in the height direction of the axle 6 can be further improved, the shock absorption effect can be further improved, and the axle 6 and the axle 6 can be better protected The connection with the transition frame 7; the parallel up and down movement of the two ends of the axle 6 can enhance the stability during driving; and make the tires evenly stressed during driving, so that the tires wear more evenly, which can effectively reduce the frequency of tire replacement.

In the above technical solution, it should be noted that the present invention does not limit the type and use of the axle, any axle (such as: drive axle, steering axle, intermediate load-bearing axle, etc.), is used for any walking type Mechanical products (such as: cars, passenger cars, walking construction machinery, etc.), as long as the shock-absorbing suspension device can be used to perform shock absorption, it should all fall within the scope of protection of the present invention.

Further improvements can be made on the basis of any of the above technical solutions.

Preferably, the connection points of the first link member 8 and the second link member 9 with the vehicle frame body 1 and the transition frame 7 are articulated through joint bearings.

The spherical joint bearing can withstand a relatively large radial and axial combined load, and can rotate at a certain angle in the radial and axial directions, which meets the requirements of the present invention and can ideally achieve the purpose of the present invention.

In the above technical solution, it should be noted that the present invention does not limit the articulation of the first link member 8 and the second link member 9 with the frame body 1 and the transition frame 7 (including the model of the joint bearing), as long as The hinged joint adopted can bear the combined loads that exist simultaneously in the radial direction and the axial direction, and can rotate at a certain angle in the radial direction and the axial direction, all of which should be within the scope of protection of the present invention.

Further improvements can be made on the basis of any of the above technical solutions.

Preferably, the fixed connection between the axle 6 and the transition frame 7 is fixedly connected by bolts 3 .

The bolt 3 is used to fixedly connect the vehicle axle 6 and the transition frame 7, which is easy to operate and convenient for maintenance.

In the above-mentioned technical solution, it should be noted that the present invention does not limit the connection method of the fixed connection between the vehicle axle 6 and the transition frame 7, and adopts other fixed connection methods such as welding, as long as the vehicle axle 6 and the transition frame 7 are fixedly connected. All should be within the protection scope of the present invention.

On the basis of the above technical solutions, further improvements can be made. Please refer to FIG. 3 . FIG. 3 is a side structural schematic diagram of an axle damping device in another embodiment of the present invention. According to the embodiment of Fig. 3, there are a first link part 8, a second link part 9, a third link part 12, and three link parts between the transition frame 7 and the frame body 1; and around the joint bearing 10 At least one pin shaft 14 is provided; other mechanisms and connections are similar to the embodiment according to FIG. 2 , and will not be repeated here.

Specifically, as shown in FIG. 3 , both ends of the first link member 8 , the second link member 9 , and the third link member 12 are hingedly connected to the transition frame 7 and the frame body 1 through joint bearings respectively.

The frame body 1 , the transition frame 7 and the first connecting rod 11 , the second connecting rod 13 and the third connecting rod 12 form a parallelogram mechanism including two parallelograms.

Obviously, in the above structural design, the frame body 1, the connecting frame 7 and the first connecting rod 11, the second connecting rod 13, and the third connecting rod 12 form a parallelogram mechanism comprising two parallelograms, which has higher flexibility and can Better absorption of impact energy and buffering of vibrations are beneficial to driving stability.

Further improvements can be made on the basis of the above technical solutions. As shown in FIG. 3 , at least one pin shaft is provided around the joint bearing 10 to fix the joint bearing.

In the above technical solution, it should be noted that the present invention does not limit the number of connecting rod parts and the number of pin shafts, and the number of connecting rod parts exceeds three and the number of pin shafts around each joint bearing exceeds one. Within the protection scope of the present invention; as long as the frame body 1, the transition frame 7 and the connecting rod components constitute a parallelogram mechanism including at least one parallelogram, all should be within the protection scope of the present invention.

In addition, the present invention also provides a walking machine, as shown in FIG. 4 , including the axle 6 and the frame body 1; the walking machine also includes the shock-absorbing suspension device in any one of the above-mentioned technical solutions. For other parts of the walking machine, reference may be made to the prior art, and this paper will not expand.

Preferably, the walking machine further includes a fourth link member 15, wherein the fourth link member 15 is arranged in the direction of both ends of the axle 6, and at least one end is hinged. One end of the fourth link member 15 is hinged to the axle 6 , and the other end is hinged to the frame body 1 . The fourth connecting rod part can balance the height of both ends of the axle 6, further enhancing the shock absorption effect.

The shock absorbing suspension device and the walking machine provided by the present invention have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (11)

1. a vibration absorbing suspension mount device, comprise damper element (2), first connecting rod parts (8) and second connecting rod parts (9), wherein, described damper element (2) is connected up and down with vehicle frame (1) and vehicle bridge (6);

Described first connecting rod parts (8), described second connecting rod parts (9) are articulated and connected with vehicle frame (1), vehicle bridge (6), form four-bar linkage structure; There is angle between described four-bar linkage structure face and horizontal surface, described angle is greater than 0 °, is less than or equal to 90 °;

It is characterized in that, also comprise double leval jib parts (15), double leval jib parts (15) one end and vehicle bridge (6) hinged, the other end and vehicle frame (1) hinged, double leval jib parts (15) are arranged in the direction at vehicle bridge (1) two ends.

2. vibration absorbing suspension mount device as claimed in claim 1, it is characterized in that, the four-bar linkage structure that described first connecting rod parts (8), described second connecting rod parts (9), vehicle frame (1) and vehicle bridge (6) are formed is parallelogram.

3. vibration absorbing suspension mount device as claimed in claim 2, it is characterized in that, described vibration absorbing suspension mount device comprises transition frame (7), and wherein said transition frame (7) is fixedly connected with vehicle bridge (6);

Described damper element (2) by being articulated and connected with described transition frame (7), thus is articulated and connected with described vehicle bridge (6);

Described first connecting rod parts (8), described second connecting rod parts (9) by being articulated and connected with described transition frame (7), thus are articulated and connected with vehicle bridge (6).

4. vibration absorbing suspension mount device as claimed in claim 3, it is characterized in that, described transition frame (7) is fixedly connected with vehicle bridge (6) by tie bolt (3).

5. vibration absorbing suspension mount device as claimed in claim 3, it is characterized in that, described vibration absorbing suspension mount device also comprises third connecting rod parts (12), wherein, described third connecting rod parts and first connecting rod parts (8), second connecting rod parts (9) are positioned at same plane; Described third connecting rod parts (12) and vehicle frame (1), described transition frame (7) are articulated and connected; Vehicle frame (1), described transition frame (7) and described first connecting rod parts (8), second connecting rod parts (9), third connecting rod parts (12) form the parallel-crank mechanism comprising two parallelogram.

6. vibration absorbing suspension mount device as claimed in claim 5, it is characterized in that, between vehicle frame (1) and described first connecting rod parts (8), described second connecting rod parts (9), described third connecting rod parts (12), hinge-point place is articulated and connected by oscillating bearing (10); Between described transition frame (7) and described first connecting rod parts (8), described second connecting rod parts (9), described third connecting rod parts (12), hinge-point place is articulated and connected by oscillating bearing (10).

7. vibration absorbing suspension mount device as claimed in claim 6, it is characterized in that, described vibration absorbing suspension mount device also comprises at least one bearing pin (14), and described bearing pin (14) is positioned at the periphery of oscillating bearing (10).

8. vibration absorbing suspension mount device as claimed in claim 1, it is characterized in that, described damper element (2) is damping oil cylinder, and is articulated and connected up and down with vehicle frame (1), vehicle bridge (6).

9. vibration absorbing suspension mount device as claimed in claim 8, is characterized in that, described damping oil cylinder (2) is articulated and connected by oscillating bearing (10) with vehicle frame (1) and vehicle bridge (6).

10. vibration absorbing suspension mount device as claimed in claim 9, it is characterized in that, described oscillating bearing (10) periphery is provided with at least one bearing pin (14).

11. 1 kinds of running type machines, comprise vehicle bridge (6) and vehicle frame (1); It is characterized in that, described running type machine also comprises the vibration absorbing suspension mount device as described in any one of claim 1 to 10.