CN217074568U - Crawler-type chassis with liftable suspension system - Google Patents
Crawler-type chassis with liftable suspension system Download PDFInfo
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- CN217074568U CN217074568U CN202220799765.6U CN202220799765U CN217074568U CN 217074568 U CN217074568 U CN 217074568U CN 202220799765 U CN202220799765 U CN 202220799765U CN 217074568 U CN217074568 U CN 217074568U
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- damper
- crawler
- vehicle body
- wheel
- swing arm
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- 239000000725 suspension Substances 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 238000013016 damping Methods 0.000 claims abstract description 25
- 230000035939 shock Effects 0.000 claims abstract description 6
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 claims description 4
- 238000012876 topography Methods 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
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Abstract
The utility model discloses a crawler-type chassis with a liftable suspension system, which comprises a vehicle body, a driving mechanism, a tensioning mechanism and a damping lifting mechanism; the crawler driving mechanism and the tensioning mechanism are arranged above the damping lifting mechanism; the shock absorption lifting mechanism comprises a connecting seat, a first damper, a first elastic piece, a swing arm, a screw jack and a loading wheel; two ends of the first damper are respectively hinged with one end of the swing arm and the vehicle body, and the other end of the swing arm is hinged with the connecting seat; the first elastic piece is sleeved on the first damper, and two ends of the first elastic piece respectively press the vehicle body and the swing arm; the screw jack is arranged on the connecting seat and is used for adjusting the height position of the connecting seat in the vertical direction; the loading wheel is rotatably arranged at one end of the swing arm hinged with the damper, and the loading wheel is connected with the inner bottom surface of the track. The utility model discloses can realize the chassis in the high lift adjustment control, promote the ability of passing through and the topography adaptability on crawler-type chassis greatly.
Description
Technical Field
The utility model relates to a crawler-type chassis especially indicates a crawler-type chassis with liftable suspension.
Background
The field road surface condition is severe, and the vehicle chassis is required to have enough strength and rigidity and good traveling and steering capacity. The crawler-type chassis has the advantages of flexible action, large contact area with the ground, strong barrier passing capability and the like, and can be widely applied to field operation vehicles such as engineering machinery, tractors and the like. The tracks are impacted by the ground as the tracked undercarriage passes over bumps or obstacles.
In order to improve the structure of a crawler chassis, a patent "CN 205997982U" discloses an asymmetric parallel damping type crawler, as shown in fig. 1, five groups of damping swing arm plates (5, 6, 7, 8, 9) of a suspension system related to the crawler have, the bottoms of the five groups of damping swing arm plates are connected with bearing wheels 3 through wheel shafts, the tops of the damping swing arm plates are connected to a frame body 2 through bearing shafts 10, the tops of the bearing shafts 10 are connected with damping elastic elements 4, a first damping swing arm plate and a damping elastic element 4 above a second damping swing arm plate are arranged in parallel, and the first damping swing arm plate is further provided with an independent damping elastic element 4 connected with the frame body 2. However, the asymmetric parallel damping type suspension system has the following disadvantages: 1. the structure is complex, the occupied space on two sides of the vehicle body is large, and the requirement on installation precision is high; 2. the arrangement among the components is too compact, and rigid collision is easy to occur; 3. the vibration filtering effect caused by the structure of the crawler 1 is not obvious, wherein the vibration filtering effect is high in frequency and small in amplitude; 4. all lateral forces generated when the tracked vehicle turns are applied to the damping swing arm plate on one side, so that the damping swing arm plate is easy to fatigue and bend, and the service life is short.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to above-mentioned problem, provide a simple structure, maintain convenient and reliable and stable have liftable suspension's crawler-type chassis. The structure can realize the lifting adjustment control of the chassis in height, and greatly improves the passing capacity and terrain adaptability of the crawler-type chassis.
The purpose of the utility model can be achieved by adopting the following technical scheme:
a crawler-type chassis with a liftable suspension system comprises a vehicle body, crawler driving mechanisms arranged on two sides of the bottom of the vehicle body, a tensioning mechanism used for tensioning a crawler, and a damping lifting mechanism used for reducing vibration of the crawler on the vehicle body; the crawler driving mechanism and the tensioning mechanism are arranged above the shock absorption lifting mechanism; the shock absorption lifting mechanism comprises a connecting seat, a first damper, a first elastic piece, a swing arm, a screw jack and a loading wheel; the two ends of the first damper are respectively hinged with one end of the swing arm and the vehicle body, and the other end of the swing arm is hinged with the connecting seat; the first elastic piece is sleeved on the first damper, and two ends of the first elastic piece respectively press the vehicle body and the swing arm; the screw jack is arranged on the connecting seat and is used for adjusting the height position of the connecting seat in the vertical direction; the loading wheel is rotatably arranged at one end of the swing arm hinged with the damper, and the loading wheel is connected with the inner bottom surface of the track.
As a preferred scheme, the driving mechanism comprises a crawler belt which is rotatably arranged on the vehicle body, a driving wheel which is meshed with the crawler belt, a supporting belt wheel which is used for supporting the upper part of the crawler belt, and a motor which is used for driving the driving wheel to rotate; the driving wheel is arranged on one end of the crawler belt, the tensioning mechanism is arranged on the other end of the crawler belt, and the driving wheel, the crawler belt and the tensioning mechanism form a motion transmission structure; the rotating shaft of the motor is connected with the driving wheel, and the supporting belt wheel is arranged between the driving wheel and the tensioning mechanism.
As a preferable scheme, the tensioning mechanism comprises a second damper, a second spring and a guide wheel, the second damper is mounted on the vehicle body, the guide wheel is rotatably mounted on a piston rod of the second damper, the second spring is sleeved on the second damper, two ends of the second spring respectively press the guide wheel and the second damper, and the guide wheel is connected with the track.
Preferably, the crawler belt is in an inverted trapezoidal shape, and the included angle between the front end and the ground surface is 40 to 50 degrees.
As a preferable scheme, a base is fixedly mounted on the vehicle body, and a piston rod of the first damper is hinged with the base.
Preferably, the second damper is fixedly mounted on the vehicle body through a connecting block.
Preferably, the loading wheel and the riding wheel are respectively arranged on the swing arm and the vehicle body through bearings.
Preferably, the guide wheel is mounted on a piston rod of the second damper by a bearing.
Preferably, the screw jack is an electrically controlled screw jack.
Preferably, the first damper is an oil pressure damper.
Implement the utility model discloses, following beneficial effect has:
1. the utility model discloses when the crawler-type chassis is through higher barrier or darker water, stretch out through control screw jack's screw rod for the connecting seat moves down. Then, the connecting seat belt drives the swing arm to swing downwards, and then drives the first damper, the first elastic piece and the bogie wheel to swing downwards, so that the vehicle body is lifted upwards.
2. The utility model discloses with first spring housing on first attenuator, both coaxial arrangement constitute the elastic component. The elastic piece can prevent the spring from being compressed or bounced too fast, and the comfort and the stability of the crawler-type chassis are improved. Both ends of the first damper are hinged with the connecting base and the swing arm respectively through pins. When the crawler-type chassis passes through a bumpy road surface, the swing arm swings upwards to compress the elastic part, so that an upward swing angle is generated on the elastic part, and the initial height of the damping lifting mechanism is reduced. Because the screw thread has the self-locking phenomenon, the screw jack can keep the original height after rising and can not automatically descend, thereby ensuring the use safety and reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a prior art structure.
Fig. 2 is a schematic structural diagram of the crawler-type chassis with the liftable suspension system of the present invention.
Fig. 3 is a schematic structural view of the damping lifting mechanism of the crawler-type chassis with the lifting suspension system of the present invention.
Fig. 4 is a schematic structural diagram of the tensioning mechanism of the crawler-type chassis with the liftable suspension system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 2 to 4, the embodiment relates to a crawler chassis with a liftable suspension system, which comprises a vehicle body 1, crawler driving mechanisms 2 arranged at two sides of the bottom of the vehicle body 1, tensioning mechanisms 3 for tensioning the crawler, and a damping lifting mechanism 4 for reducing vibration of the crawler on the vehicle body 1; the crawler driving mechanism 2 and the tensioning mechanism 3 are arranged above the damping lifting mechanism 4; the shock absorption lifting mechanism 4 comprises a connecting seat 41, a first damper 42, a first elastic piece 43, a swing arm 44, a screw jack 45 and a loading wheel 46; two first dampers 42, two first elastic pieces 43, two swing arms 44 and two loading wheels 46 are arranged, two ends of each first damper 42 are respectively hinged with one end of each swing arm 44 and the vehicle body 1, and the other end of each swing arm 44 is hinged with the connecting seat 41; the first elastic member 43 is sleeved on the first damper 42, and two ends of the first elastic member 43 respectively press the vehicle body 1 and the swing arm 44; the screw jack 45 is arranged on the connecting seat 41 and is used for adjusting the height position of the connecting seat 41 in the vertical direction; the bogie wheel 46 is rotatably mounted on the swing arm 44 at the end where the damper is hinged, and the bogie wheel 46 is connected to the inner bottom surface of the track. The damping and reducing mechanism supports the inner bottom surface of the crawler belt, so that the crawler belt can be uniformly contacted with the ground, and the movement capacity of the crawler belt is improved.
When the crawler-type chassis passes through a high obstacle or deep water, the connecting seat 41 is moved downward by controlling the screw of the screw jack 45 to be extended. Then, the connecting seat 41 drives the swing arm 44 to swing downward, thereby driving the first damper 42, the first elastic member 43 and the bogie wheel 46 to swing downward, so that the vehicle body 1 is lifted upward. In the process, the tensioning mechanism 3 is compressed.
In a normal state, the screw of the screw jack 45 does not press against the frame. When installed, the first spring is sleeved on the first damper 42, and the two are coaxially installed to form an elastic member. The elastic piece can prevent the spring from being compressed or bounced too fast, and the comfort and the stability of the crawler-type chassis are improved. Both ends of the first damper 42 are respectively hinged with the connecting seat 41 and the swing arm 44 through pins. As the tracked chassis traverses the bumpy road surface, the swing arm 44 swings upward compressing the spring member, causing the spring member to assume an upward swing angle, thereby lowering the initial height of the shock absorbing lift mechanism 4. Because the screw thread has the self-locking phenomenon, the screw jack 45 can keep the original height after rising and can not automatically descend, thereby ensuring the use safety and reliability.
The driving mechanism 2 comprises a crawler belt 21 rotatably mounted on the vehicle body 1, a driving wheel 22 engaged with the crawler belt 21, a carrier wheel 23 for supporting the upper part of the crawler belt 21, and a motor for driving the driving wheel 22 to rotate; the driving wheel 22 is arranged on one end of the crawler 21, the tensioning mechanism 3 is arranged on the other end of the crawler 21, and the driving wheel 22, the crawler 21 and the tensioning mechanism form a motion transmission structure; the rotating shaft of the motor is connected with the driving wheel 22, and the supporting belt wheel 23 is arranged between the driving wheel 22 and the tensioning mechanism 3. The motor drives the driving wheel 22 to rotate, and meanwhile, the crawler 21 is in a tensioned state under the tensioning action of the tensioning mechanism 3, so that the driving wheel 22 can drive the crawler 21 to rotate, and the vehicle body 1 is driven to move. And the carrier roller 23 functions to support the upper section of the track 21 and prevent the upper section of the track 21 from shaking or sagging.
As shown in fig. 4, the tensioning mechanism 3 includes a second damper 31, a second spring 32 and a guide wheel 33, the second damper 31 is mounted on the vehicle body 1, the guide wheel 33 is rotatably mounted on a piston rod of the second damper 31, the second spring 32 is sleeved on the second damper 31, two ends of the second spring 32 respectively press against the guide wheel 33 and the second damper 31, and the guide wheel 33 is connected with the track 21. The second spring 32 is a spring with large hardness and small screw pitch, and the second damper 31 is a damper with large damping stroke and small damping stroke. When the road surface is bumpy, the guide can automatically stretch and retract, so that the guide wheel 33 is tightly attached to the crawler 21 to play a role in tensioning the crawler 21, namely the guide wheel 33 is equivalent to a driven wheel; the guide wheel 33, the driving wheel 22 and the crawler belt 21 form a chain wheel transmission mechanism.
The crawler belt 21 is in an inverted trapezoidal shape, and the included angle between the front end and the ground is 40 to 50 degrees. Preferably, the front and rear ends of the track 21 are angled at 45 degrees to the ground.
The vehicle body 1 is fixedly provided with a base 10, and a piston rod of the first damper 42 is hinged with the base 10. The base 10 is fixed to the side of the vehicle body 1 by welding via a fixing block 11.
The second damper 31 is fixedly mounted on the vehicle body 1 through a connecting block 30. The connecting block 30 is fixedly mounted on the side surface of the vehicle body 1 by welding. The first damper 42 is an oil pressure damper. Of course, an oil pressure damper may be used as the first damper 42.
The loading wheel 46 and the idler wheel 23 are respectively arranged on the swing arm 44 and the vehicle body 1 through bearings 47. The guide wheel 33 is mounted on the piston rod of the second damper 31 by a bearing 47. The bearing 47 is a roller bearing. The bogie 46, idler wheel 23 and idler wheel 33 are mounted on the shaft by bearings.
The screw jack 45 is an electrically controlled screw jack. When the vehicle runs on a normal road, the electric control screw jack is lowered to the lowest level so as to lower the gravity center of the whole vehicle; when the vehicle runs into the ground with higher bulges, the electric control screw jack can be lifted through the remote controller, so that the vehicle body 1 is lifted, and the passing capacity and the terrain adaptability of the track 21 type chassis are greatly improved. Because the thread has the self-locking phenomenon, the electric control screw jack can not automatically descend even if the power is off after being lifted, so that the electric control screw jack does not need to be powered on all the time, and the safety and the power saving are realized.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.
Claims (10)
1. A crawler-type chassis with a liftable suspension system is characterized by comprising a vehicle body, crawler driving mechanisms arranged on two sides of the bottom of the vehicle body, a tensioning mechanism used for tensioning a crawler, and a damping lifting mechanism used for reducing vibration of the crawler to the vehicle body; the crawler driving mechanism and the tensioning mechanism are arranged above the damping lifting mechanism; the shock absorption lifting mechanism comprises a connecting seat, a first damper, a first elastic piece, a swing arm, a screw jack and a loading wheel; the two ends of the first damper are respectively hinged with one end of the swing arm and the vehicle body, and the other end of the swing arm is hinged with the connecting seat; the first elastic piece is sleeved on the first damper, and two ends of the first elastic piece respectively press the vehicle body and the swing arm; the screw jack is arranged on the connecting seat and is used for adjusting the height position of the connecting seat in the vertical direction; the loading wheel is rotatably arranged at one end of the swing arm hinged with the damper, and the loading wheel is connected with the inner bottom surface of the track.
2. The tracked chassis with the liftable suspension system is characterized in that the driving mechanism comprises a track rotatably mounted on the vehicle body, a driving wheel meshed with the track, a supporting pulley used for supporting the upper part of the track, and a motor used for driving the driving wheel to rotate; the driving wheel is arranged on one end of the crawler belt, the tensioning mechanism is arranged on the other end of the crawler belt, and the driving wheel, the crawler belt and the tensioning mechanism form a motion transmission structure; the rotating shaft of the motor is connected with the driving wheel, and the supporting belt wheel is arranged between the driving wheel and the tensioning mechanism.
3. The crawler-type chassis with liftable suspension system according to claim 1, wherein the tensioning mechanism comprises a second damper, a second spring and a guide wheel, the second damper is mounted on the vehicle body, the guide wheel is rotatably mounted on a piston rod of the second damper, the second spring is sleeved on the second damper, two ends of the second spring respectively press the guide wheel and the second damper, and the guide wheel is connected with the crawler.
4. The tracked chassis with the liftable suspension system as claimed in claim 2, wherein the tracks are in the shape of inverted trapezoids, and the front ends and the rear ends of the tracks form an angle of 40 to 50 degrees with the ground.
5. The crawler-type chassis with liftable suspension system of claim 1, wherein a base is fixedly installed on the vehicle body, and a piston rod of the first damper is hinged with the base.
6. The crawler-type chassis with liftable suspension system of claim 3, wherein the second damper is fixedly installed on the vehicle body through a connecting block.
7. The crawler-type chassis with liftable suspension system as claimed in claim 2, wherein the bogie wheel and the carrier roller are respectively mounted on the swing arm and the vehicle body through bearings.
8. A tracked undercarriage having a liftable suspension system according to claim 3, wherein said idler wheel is mounted on the piston rod of the second damper via a bearing.
9. The tracked chassis with the liftable suspension system according to claim 1, wherein the screw jacks are electrically controlled screw jacks.
10. The tracked chassis having a liftable suspension system according to claim 1, wherein said first damper is an oil pressure damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220799765.6U CN217074568U (en) | 2022-04-07 | 2022-04-07 | Crawler-type chassis with liftable suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220799765.6U CN217074568U (en) | 2022-04-07 | 2022-04-07 | Crawler-type chassis with liftable suspension system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217074568U true CN217074568U (en) | 2022-07-29 |
Family
ID=82554963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220799765.6U Expired - Fee Related CN217074568U (en) | 2022-04-07 | 2022-04-07 | Crawler-type chassis with liftable suspension system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217074568U (en) |
-
2022
- 2022-04-07 CN CN202220799765.6U patent/CN217074568U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220729 |
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| CF01 | Termination of patent right due to non-payment of annual fee |