CN108248711B - A wearable crawler snow driving device and its vibration reduction control method - Google Patents

Abstract

A wearable crawler-type snowfield running device and a vibration reduction control method thereof belong to the technical field of vehicle engineering, and comprise a suspension supporting mechanism, a crawler transmission mechanism, a crawler guiding mechanism, a crawler steering mechanism and a tensioning mechanism, wherein a vibration damper at the forefront end is connected with a crawler bottom plate and a front guide plate, and elastic tensioning of a crawler is realized while vibration reduction of a crawler wheel, so that a traditional hydraulic tensioning mechanism is omitted; the rear three vibration dampers are mainly used for damping the track wheel; the double-sided damping rods arranged at the rear part are used for restraining the motion trail of the upper suspension support during damping, and the damping rods are simultaneously provided with chain transmission tensioning devices, so that the reliability of the crawler transmission devices is ensured while damping. The invention has simple structure, easy maintenance, convenient assembly and disassembly, no need of disassembling automobile tires and lifting equipment, independent completion of one person, simple installation, time saving and reliability, strong cross-country capability, less damage to roads and durability, and can run on severe snow covered roads and deep snow covered roads.

Description

A wearable crawler snow driving device and its vibration reduction control method

Technical field

The invention belongs to the technical field of vehicle engineering, and in particular relates to a four-wheel drive wearable crawler type snow driving device and method.

Background technique

In extremely cold areas, the inconvenience of transportation brings great resistance to economic and social development. In countries and regions in severe cold zones, the harsh ice and snow road environment brings many inconveniences to transportation. Due to the special structure and properties of tires, driving on ice and snow may also cause traffic accidents.

In order to better solve this problem, the emergence of snow cross-country tracks has brought great convenience to people in severe cold areas. Most of the current snow track mechanisms on the market are divided into two types. One is a track travel mechanism similar to tank tracks. This track mechanism has strong maneuverability in complex terrain and can form a 360-degree in-situ rotation and climb over obstacles. It has strong capabilities and can cross trenches, but it is heavy, consumes a lot of fuel, and is relatively difficult to maintain. Once damaged, its off-road capability will be severely reduced, and repairs will be extremely inconvenient. The other is the traditional triangular crawler mechanism. The crawler itself is heavy, has many transmission parts and has a complex structure. During installation, the original tires of the vehicle need to be completely removed and the help of lifting equipment is required to install them. Moreover, the triangular crawler track is also limited by its own structure. The overall load-bearing capacity needs to be improved. The high-speed stability is poor. The overall strength of the crawler track is not high and it is easy to be damaged when driving at high speed. It is quite difficult, very troublesome and time-consuming to operate by one person. Therefore, a new technical solution is urgently needed in the existing technology to solve this problem.

Contents of the invention

The technical problem to be solved by the present invention is to provide a wearable crawler type snow driving device and its vibration reduction control method. The crawler structure is simple, easy to maintain, and easy to assemble and disassemble. There is no need to disassemble car tires or lifting equipment. , one person can complete it independently, and the installation is simple, time-saving and reliable. It can drive on bad snowy roads and deep snowy roads, has strong off-road capability, is less destructive to the road, and is strong and durable.

A wearable crawler type snow driving device, characterized by: including a suspension support mechanism, a crawler transmission mechanism, a crawler guide mechanism, a crawler steering mechanism and a tensioning mechanism. The suspension support mechanism includes an upper suspension support, an arc support, a vertical directional shock absorber, first shock absorber, second shock absorber, rear support plate, track wheel bottom plate and road wheel;

The crawler transmission mechanism includes a rear roller bearing, a transmission chain, a rear roller, a drive shaft bearing, a crawler drive bearing, a driving gear, a crawler driving wheel, a driving pinion and a sprocket;

The track guide mechanism includes a front guide wheel and a front guide plate;

The track steering mechanism includes a cylindrical rotor, a steering bracket, a connecting rod and a height adjuster;

The tensioning mechanism includes connecting bolts, tensioning springs, tensioning support plates, compression sprockets and damping rods;

The upper suspension support and the arch support are an integrated structure; the two corners of the arch support are fixedly connected to one end of the vertical shock absorber through bolts; the other end of the vertical shock absorber is connected to the track wheel bottom plate Hinged; four pairs of road wheels are symmetrically arranged on both sides of the track wheel bottom plate; one end of the track wheel bottom plate is connected to the front guide plate through a large bolt, and the other end of the front guide plate is connected to the front guide wheel;

Two pairs of triangular support plates are symmetrically arranged at both ends of the inner side of the upper suspension support. The triangular support plate is provided with openings. The upper suspension support is bolted to the steering bracket through the triangular support plate; the steering bracket is a V-shaped structure. , The top and bottom of the V-shaped structure of the steering bracket are each provided with a cylindrical rotor, and a connecting rod is provided at the middle position of the steering bracket; a height adjuster is provided on the connecting rod;

The upper part of the upper suspension support is provided with four bearing holes. The two bearing holes at the front end are equipped with a front roller through the front roller bearing, and the two ends of the front roller are equipped with crawler clamping discs through key connections. The two bearing holes at the rear end are A rear roller is installed through a rear roller bearing, and the rear roller is connected to the drive shaft bearing through a transmission chain provided on the sprocket. The drive shaft bearing is fixedly provided on the rear support plate, and the drive shaft bearing is provided with a drive pinion; A crawler drive bearing is fixedly installed on the rear support plate. A drive gear is provided on the crawler drive bearing. A crawler drive wheel is installed on the inside of the drive gear. The drive gear meshes with the drive pinion; the crawler drive wheel Engage with the inner gear of the track;

The upper suspension support is provided with a groove in the middle, and the threaded column inside the groove is fixedly connected to the side support plate through the external self-locking nut; One end of the two shock absorbers is connected, and the other end of the second shock absorber is arranged in a V-shape with one end of the first shock absorber, and is hinged to the track wheel bottom plate through the same hinge point; the first shock absorber The other end is connected with the mounting hole in the middle of the front guide plate through bolts;

The rear bottom of the upper suspension support is provided with a corner mounting hole. One end of the damping rod is connected to the upper suspension support through a bolt provided inside the corner mounting hole. The other end of the damping rod is connected to the bottom corner mounting hole of the rear support plate. ; The damping rod is provided with a concave hole in the middle position, and the tensioning support plate is installed on the concave hole through bolts; the tensioning support plate and the damping rod are connected through a tensioning spring, and the top of the tensioning support plate is provided with a Compression sprocket; the compression sprocket is arranged inside the transmission chain and connected with the transmission chain.

The crawler track is a synthetic rubber crawler track, and the crawler track is provided with internal gear teeth, which mesh with four pairs of road wheels through the internal gear teeth.

The upper part of the crawler track is arranged in the interlayer between the front roller and the rear roller and the upper suspension support, and the crawler track is arranged at the middle position of both ends of the front roller through the crawler track clamping plate.

Bearing covers are provided outside the crawler drive bearing and the drive shaft bearing.

The load wheel is mounted on the central shaft by a bearing, and the outer end of the central shaft has a threaded hole and is threadedly connected to the support plate.

A vibration reduction control method for a wearable crawler-type snow driving device, characterized by: utilizing the aforementioned wearable crawler-type snow driving device,

Install the crawler track on the wheel, and the wheel drives the rear drum to rotate, which in turn drives the sprockets at both ends to rotate. The sprockets at both ends of the rear drum drive the sprockets on the rear support plate through the chain, which in turn drives the coaxial gear to rotate, which is in conjunction with the drive small The gear meshing driving gear rotates at the same time, driving the coaxial crawler drive wheel to drive the crawler forward; the front of the crawler is subject to an instant impact, the front guide plate rotates around the bolt connection, and the first shock absorber compresses to relieve the front impact; impact

The road excitation at the bottom of the crawler track is uneven, and the compression amounts of the two vertical shock absorbers at the front and rear are different. When the upper suspension support swings back and forth, the second shock absorber connected to the upper suspension support compresses or stretches, thereby affecting the upper suspension support. The swing of the track is attenuated; the crawler track passes between the front and rear rollers and the upper suspension support. The front and rear swings of the upper suspension support will cause the front and rear rollers to press down on the crawler track. At the same time, the first shock absorber is compressed and the front guide plate is retracted inward. , the first shock absorber elastically tensions the track;

When the upper suspension support swings, the distance between the rear roller bearing and the drive shaft bearing changes. The parallelogram structure formed by the damping rod, the rear roller bearing and the drive shaft bearing will constrain its movement trajectory while the upper suspension support swings; at the same time Since the transmission chain will become loose at this time, the tensioning mechanism located on the damping rod will pull the tensioning support plate under the tension of the tensioning spring to ensure that the compression sprocket is tightly pressed on the transmission chain and ensure reliable transmission of the transmission chain.

Through the above design scheme, the present invention can bring the following beneficial effects: a wearable crawler-type snow driving device and its vibration reduction control method. The crawler structure is simple, easy to maintain, and easy to assemble and disassemble. There is no need to disassemble car tires and no If lifting equipment is required, one person can complete it independently. The installation is simple, time-saving and reliable. It can drive on bad snowy roads and deep snowy roads, has strong off-road capability, is less destructive to the road, and is strong and durable.

Further beneficial effects of the present invention are:

1. The present invention does not need to change the structure of the original vehicle wheel suspension or disassemble the wheels. It only needs to use the mounting bracket to drive the vehicle into the middle slot of the crawler track to fix the crawler track. It is simple, reliable, and easy to assemble and disassemble.

2. The present invention uses a special mechanical damping structure to dampen the vibration of the crawler track when driving. It does not need to install a hydraulic tensioning mechanism, eliminates the need for vulnerable parts such as hydraulic cylinders and hydraulic pipelines, simplifies the mechanical structure of the crawler wheel, and greatly improves the performance of the crawler track. Improve the reliability and stability of the track.

3. The present invention adopts a two-stage transmission mode that combines chain transmission and gear transmission, and is equipped with a chain transmission tensioning mechanism. The transmission of the entire mechanism is stable and reliable, and has strong adaptability to harsh snowy road conditions. Its off-road capability is compared with ordinary Snow track wheels are stronger.

Description of the drawings

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

Figure 1 is a schematic diagram of the overall structure of a wearable track-type snow driving device according to the present invention.

Figure 2 is a schematic diagram of the internal structure of a wearable track-type snow driving device according to the present invention.

Figure 3 is a schematic structural diagram of the crawler transmission mechanism of a wearable crawler-type snow driving device according to the present invention.

Figure 4 is a schematic structural diagram of the tensioning mechanism of a wearable track-type snow driving device according to the present invention.

In the picture, 1-side support plate, 2-cylindrical rotor, 3-steering bracket, 4-connecting rod, 5-height adjuster, 6-crawler, 7-rear support plate, 8-road wheel, 9-track wheel bottom plate, 10-front guide plate, 11-front guide wheel, 12-track clamping disc, 13-large bolt, 14-first shock absorber, 15-second shock absorber, 16-arch support, 17-vertical damper Vibrator, 18-upper suspension support, 19-bearing cover, 20-front roller bearing, 21-front roller, 22-rear roller bearing, 23-transmission chain, 24-rear roller, 25-drive shaft bearing, 26- Track drive bearing, 27-drive gear, 28-track drive wheel, 29-drive pinion, 30-sprocket, 31-connecting bolt, 32-tension spring, 33-tension support plate, 34-compression chain wheel, 35-damping rod, 36-triangular support plate, 37-central axis, 38-support plate.

Detailed ways

A wearable track-type snow driving device, as shown in Figure 1, includes a suspension support mechanism, a crawler transmission mechanism, a crawler guide mechanism, a crawler steering mechanism and a tensioning mechanism. Its core mechanisms are the suspension support mechanism and the crawler transmission mechanism.

The suspension support mechanism includes an upper suspension support 18, an arc support 16, a vertical shock absorber 17, a first shock absorber 14, a second shock absorber 15, a rear support plate 7, a track wheel bottom plate 9 and a road wheel 8.

The upper suspension support 18 and the arcuate support 16 are integrated. There are four bearing holes on the upper suspension support 18. The first two bearing holes are equipped with a front roller 21 through the front roller bearing 20, and both ends of the front roller 21 are installed through key connections. There is a crawler clamping disc 12 to prevent the crawler track 6 from deflecting during travel. The rear two bearing holes are equipped with rear rollers 24, and sprockets 30 are installed at both ends of the rear roller. The sprockets 30 are connected to the rear support plate through the transmission chain 23. 7 transmission mechanism.

There are triangular support plates 36 at both inner ends of the upper suspension support 18. The triangular support plates 36 have holes for connecting the steering bracket 3 with bolts. There is a groove in the middle of the upper suspension support 18, which is connected to the internal side support plates 1 on both sides through bolts; there are grooves in the two corners of the arcuate support 16, and two vertical shock absorbers 17 are connected through bolts. The vibrator 17 mainly relieves the impact force in the vertical direction during the traveling process of the crawler track 6 . The bottom of the vertical shock absorber 17 is hinged on the track wheel bottom plate 9.

There is a protruding installation hole in the middle of the front side of the upper suspension support 18. The second shock absorber 15 is installed through the installation hole through bolts. The second shock absorber 15 and the first shock absorber 14 are arranged in a V shape in parallel, and are arranged in a V shape through a common The hinge point is hinged on the front of the track wheel bottom plate 9 to alleviate the impact of the front.

There are protruding mounting holes on both sides of the rear part of the upper suspension support 18, and bolts are used to connect the damping rods 35 on both sides of the rear part. The damping rods 35 are used to constrain the motion trajectory of the upper suspension support 18 when it swings. The other ends of the two damping rods 35 are connected with the protruding mounting holes at the bottom corners of the rear support plate 7 with bolts.

There is an inner groove hole in the front part of the central part of the track wheel bottom plate 9 for connecting with the front guide plate 10 through bolts. There are four pairs of eight road wheels 8 on both sides of the track wheel bottom plate 9, and the road wheels 8 are straddled. On both sides of the inner gear teeth of the crawler track 6, the crawler track 6 is clamped while supporting the weight of the vehicle, so that the crawler track 6 does not deviate during driving.

The load wheel 8 is mounted on the central shaft 37 by bearings. The outer end of the central shaft 37 has a threaded hole for fixing the support plate 38, and the two are fixed together by bolts.

The crawler transmission mechanism includes a rear roller bearing 22, a transmission chain 23, a rear roller 24, a drive shaft bearing 25, a crawler drive shaft bearing 26, a driving gear 27, a crawler driving wheel 28, a driving pinion 29, and a sprocket 30.

The front sprocket of the crawler transmission mechanism is installed on the rear roller 24, and the rear sprocket is installed on both ends of the drive shaft. The sprockets are all connected by keys. The drive shaft is fixed on the rear support plate 7 through the drive shaft bearing 25. The drive shaft A driving pinion 29 is installed on the upper drive pinion 29. The driving pinion 29 meshes with the upper driving gear 27 on the crawler drive bearing 26. The crawler drive shaft is also fixed on the rear support plate 7 through the bearing. A crawler track is installed on the inside of the driving gear 27. The drive wheel 28 and the crawler drive wheel 28 mesh with the inner gear teeth of the crawler track 6, thereby transmitting the power on the wheel to the crawler belt and driving the crawler belt forward. The crawler belt drive mechanism adopts a secondary transmission that combines chain drive and gear drive. The transmission mode is stable and reliable, and has strong adaptability to harsh snowy roads.

The crawler guide mechanism includes a front guide wheel 11 and a front guide plate 10 . The front guide plate 10 is connected to the track wheel bottom plate 9 through large bolts 13, that is, the front guide plate 10 can rotate around the bolt connection. There is a mounting hole in the middle of the front guide plate 10, and the first shock absorber is connected through bolts. 14. The first shock absorber 14 and the second shock absorber 15 are hingedly connected to the track wheel bottom plate 9 .

The track steering mechanism includes a cylindrical rotor 2, a steering bracket 3, a connecting rod 4, and a height adjuster 5. The track steering mechanism is mainly used to fix the wheels while maintaining good wheel steering. During installation, drive the wheels into the grooves of the oblique mounting brackets on the front and rear rollers of the track wheels, adjust the height adjuster 5, connect the upper end of the height adjuster 5 to the wheel drive shaft, and secure and tighten it with a large nut to ensure that the wheel travels smoothly. There will be no separation during the process.

The tensioning mechanism includes connecting bolts 31, tensioning springs 32, tensioning support plates 33, compression sprockets 34, and damping rods 35. Both ends of the damping rod 35 of the tensioning mechanism are respectively connected to the bottom corner mounting holes of the upper suspension support 18 and the bottom corner mounting holes of the rear support plate 7 . At the same time, there is a mounting hole in the middle of the damping rod 35 for installing the tensioning support plate 33. There is a hook on the upper side of the damping rod 35, and the tensioning spring 32 is hooked on the hook.

There is a concave hole in the middle of the damping rod 35, and the other end of the tensioning spring 32 is hooked in the hole. A small bearing is installed on the inside of the top of the damping rod 35 for installing the compression sprocket 34. The compression sprocket comes from the inside of the transmission chain 23. Press the drive chain 23 tightly.

A vibration reduction control method for a wearable crawler-type snow driving device. During the process of installing crawler tracks on an off-road vehicle, when the front part of the crawler track 6 is subject to a momentary impact, the front guide plate 10 rotates around the bolt connection, and the first The shock absorber 14 compresses to relieve front shock.

When the crawler track 6 receives road excitation from the bottom of the crawler track during travel. Since the road excitation at the bottom of the crawler track 6 is unevenly distributed before and after, that is, the two vertical shock absorbers 17 at the front and rear have different compression amounts. At this time, the vibration reduction process is complicated and is mainly divided into the following three processes:

When the compression amounts of the front and rear vertical shock absorbers 17 are different, the upper suspension support 18 will swing back and forth. When the upper suspension support 18 swings back and forth, it will also cause the second shock absorber 15 connected to the upper suspension support 18 to Compression or expansion, thereby attenuating the swing of the upper suspension support 18.

When the upper suspension support 18 swings back and forth, since the crawler track 6 passes between the front roller 21 and the rear roller 24 and the upper suspension support 18, the front and rear swing of the upper suspension support 18 will cause the front and rear rollers 24 to press down the crawler track 6, which in turn causes The first shock absorber 14 compresses and the front guide plate 10 contracts inwardly. At this time, the first shock absorber 14 plays the role of elastically tensioning the crawler track 6 .

The swing of the upper suspension support 18 simultaneously causes a change in the distance between the rear drum shaft and the drive shaft, ie the two shafts on which the sprocket 30 is mounted. The structure of the parallelogram formed by the damping rod 35, the rear roller bearing 22 and the drive shaft will constrain the trajectory of the upper suspension support 18 while swinging. At the same time, since the transmission chain 23 will become loose at this time, the tensioning mechanism located on the damping rod 35 will pull the tension support plate 33 under the tension of the tensioning spring 32 to ensure that the compression sprocket 34 is tightly pressed against the transmission chain. 23 to ensure reliable transmission of the transmission chain 23.

The snow crawler driving device relies on a crawler transmission mechanism to transmit power, wherein the crawler transmission mechanism uses a two-stage transmission method that combines chain transmission and gear transmission to ensure reliable transmission. While the crawler track is traveling, four internal shock absorbers of different sizes are used to dampen the vibration of the track wheel. The first shock absorber 14 ensures elastic tensioning of the crawler track while damping vibration, eliminating the need for a hydraulic tensioning mechanism. , the bogie installed on the upper suspension support 18 clamps the wheels while ensuring reliable steering of the vehicle, thereby realizing all functions of the crawler mechanism.

Claims (6)

1. A wearable crawler-type snow traveling device is characterized in that: the crawler belt steering device comprises a suspension supporting mechanism, a crawler belt transmission mechanism, a crawler belt guiding mechanism, a crawler belt steering mechanism and a tensioning mechanism, wherein the suspension supporting mechanism comprises an upper suspension support (18), an arch support (16), a vertical shock absorber (17), a first shock absorber (14), a second shock absorber (15), a rear supporting plate (7), a crawler belt wheel bottom plate (9) and a loading wheel (8);

the crawler transmission mechanism comprises a rear roller bearing (22), a transmission chain (23), a rear roller (24), a driving shaft bearing (25), a crawler driving bearing (26), a driving large gear (27), a crawler driving wheel (28), a driving pinion (29) and a chain wheel (30);

the crawler guide mechanism comprises a front guide wheel (11) and a front guide plate (10);

the crawler steering mechanism comprises a cylindrical rotor (2), a steering bracket (3), a connecting rod (4) and a height adjuster (5);

the tensioning mechanism comprises a connecting bolt (31), a tensioning spring (32), a tensioning supporting plate (33), a pressing chain wheel (34) and a damping rod (35);

the upper suspension support (18) and the arch support (16) are of an integral structure; two corners of the arch support (16) are fixedly connected with one end of the vertical shock absorber (17) through bolts respectively; the other end of the vertical shock absorber (17) is hinged with the crawler wheel bottom plate (9); four pairs of loading wheels (8) are symmetrically arranged on two sides of the crawler wheel bottom plate (9) respectively; the crawler wheel bottom plate (9) is connected with one end of the front guide plate (10) through a large bolt (13), and the other end of the front guide plate (10) is connected with the front guide wheel (11);

two pairs of triangular support plates (36) are symmetrically arranged at two ends of the inner side of the upper suspension support (18), openings are formed in the triangular support plates (36), and the upper suspension support (18) is connected with the steering support (3) through the triangular support plates (36) through bolts; the steering support (3) is of a V-shaped structure, the top and the bottom of the V-shaped structure of the steering support (3) are respectively provided with a cylindrical rotor (2), and the middle position of the steering support (3) is provided with a connecting rod (4); the connecting rod (4) is provided with a height adjuster (5);

four bearing holes are formed in the upper portion of the upper portion suspension support (18), a front roller (21) is installed in the front end two bearing holes through a front roller bearing (20), crawler clamping discs (12) are installed at two ends of the front roller (21) through key connection, a rear roller (24) is installed in the rear end two bearing holes through a rear roller bearing (22), the rear roller (24) is connected with a driving shaft bearing (25) through a transmission chain (23) arranged on a chain wheel (30), the driving shaft bearing (25) is fixedly arranged on a rear supporting plate (7), and a driving pinion (29) is arranged on the driving shaft bearing (25); a crawler driving bearing (26) is fixedly arranged on the rear supporting plate (7), a driving large gear (27) is arranged on the crawler driving bearing (26), a crawler driving wheel (28) is arranged on the inner side of the driving large gear (27), and the driving large gear (27) is meshed with a driving small gear (29); the crawler belt driving wheel (28) is meshed with an inner side gear of the crawler belt (6);

the middle part of the upper suspension support (18) is provided with a groove, and the upper suspension support is fixedly connected with the side support plate (1) through a self-locking nut arranged outside a threaded column in the groove; the middle position of the front side of the upper suspension support (18) is provided with a convex mounting hole, and is connected with one end of a second shock absorber (15) through a bolt, the other end of the second shock absorber (15) is arranged in parallel with one end of the first shock absorber (14) in a V-shaped manner, and is hinged with the crawler wheel bottom plate (9) through the same hinge point; the other end of the first shock absorber (14) is connected with a mounting hole in the middle of the front guide plate (10) through a bolt;

a corner mounting hole is formed in the bottom of the rear side of the upper suspension support (18), one end of a vibration reduction rod (35) is connected with the upper suspension support (18) through a bolt arranged in the corner mounting hole, and the other end of the vibration reduction rod (35) is connected with a bottom corner mounting hole of the rear support plate (7); a concave hole is formed in the middle of the vibration reduction rod (35), and the tensioning support plate (33) is mounted on the concave hole through a bolt; the tensioning support plate (33) is connected with the damping rod (35) through a tensioning spring (32), and a pressing chain wheel (34) is arranged at the top of the tensioning support plate (33); the pressing chain wheel (34) is arranged on the inner side of the transmission chain (23) and is connected with the transmission chain (23).

2. A wearable crawler snowmobile as in claim 1 wherein: the crawler belt (6) is an synthetic rubber crawler belt, and inner gear teeth are arranged in the crawler belt (6) and meshed with the four pairs of bogie wheels (8) through the inner gear teeth.

3. A wearable crawler snowmobile as in claim 1 wherein: the upper part of the crawler belt (6) is arranged in the interlayer of the front roller (21) and the interlayer of the rear roller (24) and the upper suspension support (18), and the crawler belt (6) is arranged at the middle position of the two ends of the front roller (21) through the crawler belt clamping disc (12).

4. A wearable crawler snowmobile as in claim 1 wherein: the crawler belt drive bearing (26) and the outside of the drive shaft bearing (25) are provided with a bearing cover plate (19).

5. A wearable crawler snowmobile as in claim 1 wherein: the loading wheel (8) is arranged on a central shaft (37) through a bearing, a threaded hole is formed in the outer end of the central shaft (37), and the loading wheel is in threaded connection with a supporting plate (38).

6. A vibration reduction control method of a wearable crawler-type snowfield running device is characterized by comprising the following steps of: with a wearable crawler snowmobile of claim 1,

the crawler belt (6) is arranged on wheels, the wheels drive the rear roller (24) to rotate, further drive chain wheels (30) at two ends to rotate, the chain wheels (30) at two ends of the rear roller (24) drive chain wheels on the rear supporting plate (7) through a chain, further drive a coaxial gear to rotate, and drive a large driving gear (27) meshed with a small driving gear (29) to rotate simultaneously, so that the coaxial crawler belt driving wheel (28) is driven to drive the crawler belt (6) to run forwards; the front part of the crawler belt (6) is subjected to instant impact, the front guide plate (10) rotates around the bolt connection part, and the first shock absorber (14) compresses to relieve the front impact;

the road surface at the bottom of the crawler belt (6) is unevenly excited, the compression amounts of the front vertical vibration damper and the rear vertical vibration damper (17) are different, and when the upper suspension support (18) swings forwards and backwards, the second vibration damper (15) connected with the upper suspension support compresses or stretches, so that the swing of the upper suspension support (18) is attenuated; the crawler belt (6) passes through the middle of the front roller (21) and the rear roller (24) and the upper suspension support (18), the front roller (21) and the rear roller (24) are pressed down by the upper suspension support (18), meanwhile, the first shock absorber (14) compresses and the front guide plate (10) contracts inwards, and the first shock absorber (14) elastically tightens the crawler belt (6);

the distance between the rear roller bearing (22) and the driving shaft bearing (25) is changed while the upper suspension support (18) swings, and the vibration reduction rod (35), the rear roller bearing (22) and the driving shaft bearing (25) form a parallelogram structure, so that the movement track of the upper suspension support (18) can be restrained while the upper suspension support (18) swings; meanwhile, as the transmission chain (23) can be loosened at the moment, the tensioning mechanism on the damping rod (35) can tension the tensioning support plate (33) under the tension of the tensioning spring (32), so that the pressing chain wheel (34) is pressed on the transmission chain (23) tightly, and the reliable transmission of the transmission chain (23) is ensured.