CN102390445B - High-mounted crawler track walking system with suspended shock-absorbing device - Google Patents

Abstract

The invention discloses a high-mounted crawler track walking system with a suspended shock-absorbing device, and the high-mounted crawler track walking system comprises a driving wheel, a tension wheel assembly, a guide wheel, a thrust wheel, a crawler track and a bracket assembly, wherein the tension wheel assembly is arranged at the front part of the bracket assembly, and the guide wheel is arranged at the rear part of the bracket assembly; the driving wheel is arranged at an upward position between the tension wheel assembly and the guide wheel and fixedly connected with a driving motor; the thrust wheel is arranged between the tension wheel assembly and the guide wheel and connected with the bracket assembly; the crawler track is arranged around the driving wheel, the tension wheel assembly, the thrust wheel and the guide wheel so as to form a triangular structure; the bracket assembly comprises brackets for installing the wheels and a cover body for installing the tension wheel assembly; and the thrust wheel is connected with the bracket assembly by the suspended shock-absorbing device. The high-mounted crawler track walking system disclosed by the invention has the beneficial effects that 1, the swing angle of the thrust wheel is large, therefore, the obstacle-detouring capacity of the walking system is strong; 2, the shock-absorbing effect is good; and 3, the structure is simple and compact, and the manufacturing cost is low.

Description

High-mounted crawler travel system with suspension shock absorber

technical field

The invention relates to a crawler walking system, in particular to a high-mounted crawler walking system with a suspension shock absorber for a crawler type skid steer loader.

Background technique

At present, the crawler traveling system of the crawler-type skid steer loader is divided into two types according to the layout of the driving wheels: a high-mounted crawler system and a low-mounted crawler system. The driving wheel of the high-mounted crawler walking system is located at a relatively high position in the walking system. During the walking process, the driving wheel can be prevented from being hit by external obstacles, which improves the reliability of the walking system, but it also has the disadvantage of compact structure and difficult layout of other components. . Due to the compact internal space of the high-mounted crawler system, complex suspension shock absorbers cannot be arranged, so the traditional low-mounted crawler system is rigidly connected between the rollers and the platform, and the vehicle works on uneven ground or the vehicle When overcoming obstacles, a small number of supporting wheels will bear the weight of the whole machine, and severe vibration and impact will be generated when walking, which will affect the service life of vehicle components and driving comfort, and the service life of the supporting wheels itself will also be greatly improved. reduce. At the same time, due to the reduction of the ground contact area of the crawler, the grip of the crawler is reduced, resulting in a decrease in traction; and because some of the rollers are separated from the chain rail, there is a risk of derailment of the crawler during walking. the

Chinese patent ZL200720157409.x discloses a tracked vehicle roller suspension device, the roller suspension device adopts an X-shaped cross hinge structure, rubber shock absorbers are installed between the cross positions, so when encountering obstacles The swing of the suspension device is hindered by the rubber shock absorber, which greatly affects the obstacle-surmounting ability of the rollers.

Contents of the invention

Purpose of the invention: The purpose of the invention is to provide a high-mounted crawler walking system with a suspension damping device that can achieve shock absorption without affecting the obstacle-surpassing ability of the rollers.

Technical solution: A high-mounted crawler walking system with a suspension shock absorber, including a driving wheel, a tensioning wheel assembly, a guide wheel, a roller, a track and a bracket assembly, and the tensioning wheel assembly is installed at the front of the bracket assembly to guide the The wheel is installed at the rear of the bracket assembly, the driving wheel is located at an upward position between the tension wheel assembly and the guide wheel and is fixedly connected with the drive motor, the supporting wheel is located between the tension wheel assembly and the guide wheel and is connected with the bracket assembly, The track forms a triangular structure around the driving wheel, the idler assembly, the rollers and the idler wheel. The bracket assembly includes a bracket connecting each wheel and a cover for installing the tensioner assembly. Connected via a suspension shock absorber. The installation of the high-mounted crawler walking system can be realized through the above-mentioned reasonable arrangement and the use of the above-mentioned compact suspension shock absorbing device.

The suspension damping device includes a shock absorbing pad, a platform, a hinge, a hinge pin and a mounting frame; the mounting frame includes two side plates, a beam and a hinge ring, and the two side plates and the beam are fixedly connected to form an H-shaped structure, the hinge ring is fixed on the beam in the middle of the H-shaped structure; the gaps at both ends of the H-shaped structure are respectively hinged with rollers; the hinge pin passes through the through hole of the hinge ring on the hinge and the mounting frame to realize the hinge and the mounting frame hinged; the side of the platform is provided with limit blocks to limit the swing angle of the mounting frame of the roller; the suspension shock absorber is provided with four shock pads located on the four corners of the hinge. The track roller itself can swing freely and is not affected by other parts within the allowable range; when the track roller encounters an obstacle, the wheel body swings around the hinge pin together with the mounting frame, and when the track roller passes through the obstacle The center will swing freely with the shape of the obstacle, which greatly improves the ability of the rollers to overcome obstacles. The swing angle is controlled by the limit block, so the shape and installation position of the limit block can be adjusted to adjust the swing angle; in order to avoid the interference between the track roller and the stand during the swing process, a limit block is installed on the side of the stand to limit the installation frame swing angle. In order to improve the damping effect of the suspension damping device, the suspension damping device is provided with four damping pads located on the four corners of the hinge. The impact force can be shared by four shock pads, and the two shock pads on the same side can be compressed to adapt to the lateral swing of the roller or to further improve the obstacle-surmounting ability of the roller.

The tensioning wheel assembly includes a tensioning wheel, a connecting frame, a tensioning spring, and a limiting plate for fixing the tensioning spring. Both sides of the limiting plate are respectively provided with protrusions fixedly connected with the cover of the bracket assembly. The installation and positioning of the tensioning wheel assembly is realized through the cooperation of the protrusions with the corresponding grooves on the cover body, and the structure is simple and reliable.

In order to facilitate the maintenance of the walking system of the present invention, the corresponding position of the bracket assembly is provided with a maintenance port, but in normal use, dirt and other sundries are prevented from entering the walking system and causing damage to the walking system. closed. The bracket assembly also includes a cover plate for closing the maintenance opening on the cover body.

Beneficial effects: Compared with the prior art, the present invention has the following remarkable advantages: 1. The supporting rollers have a large swing angle and strong obstacle-surmounting ability; 2. Good damping effect; 3. The structure is simple and compact, and the manufacturing cost is low.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the structure of the present invention after the cover is removed;

Fig. 3 is a schematic structural view of the present invention after the bracket assembly is removed;

Fig. 4 is a schematic structural view of the suspension damping device of the present invention;

5 is an exploded schematic view of the suspension damping device of the present invention;

Fig. 6 is a schematic structural view of the bracket of the suspension damping device of the present invention.

Detailed ways

As shown in the figure, a high-mounted crawler walking system with a suspension shock absorber includes a driving wheel 1, a tensioning wheel assembly 2, a guide wheel 3, a supporting wheel 4, a crawler belt 5 and a bracket assembly 6, and the tensioning wheel assembly 2 is installed at the front of the bracket assembly 6, and the guide wheel 3 is installed at the rear of the bracket assembly 6. The driving wheel 1 is located at an upward position between the tensioning wheel assembly 2 and the guide wheel 3 and is fixedly connected with the driving motor. The supporting wheel 4 Located between the tensioning wheel assembly 2 and the guide wheel 3 and connected to the bracket assembly 6, the crawler belt 5 forms a triangular structure around the drive wheel 1, the tension wheel assembly 2, the supporting wheel 4 and the guide wheel 3, and the bracket assembly 6 includes The bracket 61 connecting each wheel and the cover body 62 for installing the tension wheel assembly 2, the support wheel 4 and the bracket assembly 6 are connected through the suspension shock absorbing device 7 . The installation of the high-mounted crawler walking system can be realized through the above-mentioned reasonable arrangement and the use of the above-mentioned compact suspension damping device 7 .

The suspension damping device 7 includes a shock absorber 71, a stand 72, a hinge 73, a hinge pin 74 and a mounting frame 75; the mounting frame 75 includes two side plates 751, a beam 752 and a hinge ring 753. The block side plate 751 and the crossbeam 752 are fixedly connected to form an H-shaped structure, and the hinged ring 753 is fixed on the crossbeam 752 in the middle of the H-shaped structure; the gaps at both ends of the H-shaped structure are respectively hinged with supporting wheels 4; the hinge pin 74 passes through The through hole of the hinge ring 753 on the hinge 73 and the mounting frame 75 realizes the articulation of the hinge 73 and the mounting frame 75; the side of the stand 72 is provided with a limiting block 76 that limits the swing angle of the mounting frame 75 of the roller 4 ; The suspension damping device 7 is provided with four damping pads 71 located on the four corners of the hinge 73 . The track roller 4 itself can swing freely, and is not affected by other parts within the allowable range; when the track wheel 4 encounters an obstacle, the wheel body swings around the hinge pin 74 together with the mounting bracket 75, and the track wheel 4 During the process of passing the obstacle, it will swing freely with the shape of the obstacle, which greatly improves the ability of the rollers to overcome obstacles. The swing angle is controlled by the stop block 76, so the shape and installation position of the stop block 76 can be adjusted to adjust the swing angle; The block 76 limits the swing angle of the installation frame 75 . In order to improve the damping effect of the suspension damping device 7, the suspension damping device 7 is provided with four damping pads 71 located on the four corners of the hinge. The impact force can be shared by the four shock pads 71 , and the two shock pads 71 on the same side can be compressed to adapt to the lateral swing of the roller 4 or to further improve the obstacle-surmounting ability of the roller 4 .

The tensioning wheel assembly 2 includes a tensioning wheel 21, a connecting frame 22, a tensioning spring 23 and a limiting plate 24 for fixing the tensioning spring 23, and the two sides of the limiting plate 24 are respectively provided with covers for the bracket assembly 6. The body 62 is fixedly connected to the protrusion 25 . The installation and positioning of the tensioning wheel assembly 2 is realized through the cooperation of the protrusion 25 with the corresponding groove on the cover body 62, and the structure is simple and reliable.

In order to facilitate the maintenance of the walking system of the present invention, the corresponding position of the bracket assembly 6 is provided with a maintenance port, but in normal use, it is prevented that dirt and other sundries enter the inside of the walking system and cause damage to the walking system. The mouth is closed. The bracket assembly 6 also includes a cover plate 63 for closing the maintenance opening on the cover body 62 .

Claims (3)

1. A high-mounted crawler walking system with a suspension shock absorber, including a driving wheel (1), a tensioning wheel assembly (2), a guide wheel (3), a supporting wheel (4), a crawler belt (5) and a bracket Assembly (6), the tensioner assembly (2) is installed at the front of the bracket assembly (6), the guide wheel (3) is installed at the rear of the bracket assembly (6), and the driving wheel (1) is located at the tensioner assembly (2) ) and the guide wheel (3) and fixedly connected to the drive motor, the roller (4) is located between the tension wheel assembly (2) and the guide wheel (3) and connected to the bracket assembly (6), The track (5) forms a triangular structure around the drive wheel (1), tensioner assembly (2), supporting wheel (4) and guide wheel (3), and it is characterized in that the bracket assembly (6) includes a The bracket (61) and the cover (62) used to install the tension wheel assembly (2), the support wheel (4) and the bracket assembly (6) are connected by a suspension shock absorber (7); the suspension The shock absorbing device (7) includes a shock absorbing pad (71), a stand (72), a hinge (73), a hinge pin (74) and a mounting frame (75); the mounting frame (75) includes two side plates ( 751), beam (752) and hinge ring (753), the two side panels (751) and beam (752) are fixedly connected to form an H-shaped structure, and the hinge ring (753) is fixed to the beam in the middle of the H-shaped structure (752); the gaps at both ends of the H-shaped structure are respectively hinged with support wheels (4); the hinge pin (74) passes through the through hole of the hinge (73) and the hinge ring (753) on the mounting bracket (75) to realize The hinge (73) is hinged with the mounting frame (75); the side of the platform (72) is provided with a limit block (76) that limits the swing angle of the mounting frame (75) of the roller (4); the Suspension damping device (7) is provided with four damping pads (71) and is positioned at the four corners of hinge (73). 2. The high-mounted crawler walking system with suspension shock absorbing device according to claim 1, characterized in that: the tensioning wheel assembly (2) includes a tensioning wheel (21), a connecting frame (22), a tensioning The spring (23) and the limit plate (24) for fixing the tension spring (23), the two sides of the limit plate (24) are respectively provided with protrusions fixedly connected with the cover (62) of the bracket assembly (6) Things (25). 3. The high-mounted crawler walking system with suspension shock absorbing device according to claim 1, characterized in that: the bracket assembly (6) further includes a cover plate (63) for closing the maintenance opening on the cover body (62).

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