CN216761950U - Combined horizontal spiral spring suspension system - Google Patents
Combined horizontal spiral spring suspension system Download PDFInfo
- Publication number
- CN216761950U CN216761950U CN202220186291.8U CN202220186291U CN216761950U CN 216761950 U CN216761950 U CN 216761950U CN 202220186291 U CN202220186291 U CN 202220186291U CN 216761950 U CN216761950 U CN 216761950U
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- swing arm
- tensioning
- wheel
- suspension system
- guide wheel
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- 239000000725 suspension Substances 0.000 title claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 238000013016 damping Methods 0.000 claims abstract description 31
- 230000035939 shock Effects 0.000 claims abstract description 10
- 230000003139 buffering effect Effects 0.000 claims abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 210000003029 clitoris Anatomy 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model discloses a combined horizontal spiral spring suspension system which mainly comprises a damping mechanism and a tensioning mechanism. The damping mechanisms are mounted on both sides of the vehicle body, and abut against the inner surface of the lower crawler belt to receive the impact of the ground. The tensioning mechanisms are arranged on two sides of the vehicle body, are abutted against the inner surface of the upper crawler belt and bear the weight of the crawler belt. When the track was marchd on unevenness's road surface, the luffing motion of the bogie wheel that damper set up through symmetry around on the one hand, on the other hand compresses axial elastic element through swing arm around through, still through the promotion of swing arm to another swing arm position, can show the impact that reduces the abominable road conditions in ground and to the cause of automobile body under the three aspects combined action, obtains better buffering, shock attenuation effect when providing good support for the automobile body. Simultaneously, the structure of this mechanism compares in current structure after optimizing and adjusting, and its intensity and stability are all obviously improved, and the volume is littleer moreover, the focus is lower, can effectively improve the travelling comfort and the trafficability characteristic of automobile body.
Description
Technical Field
The utility model relates to the technical field of crawler-type chassis, in particular to a combined horizontal spiral spring suspension system.
Background
The crawler suspension is widely applied to field operation vehicles such as engineering machinery, tractors and the like. The walking condition is severe, and the walking mechanism is required to have enough strength and rigidity and good traveling and steering capacity. The crawler belt is in contact with the ground, and the driving wheel is not in contact with the ground. The motor transmits power to the speed reducer and then to the driving wheel, the wheel teeth of the driving wheel are meshed with the crawler belt, and the crawler belt is continuously rolled up from the rear. The tracks of the ground engaging portion impart a rearward force on the ground which in turn imparts a forward reaction force on the tracks which is the driving force for propelling the tracked chassis forward. When the driving force is greater than the running resistance, the road wheels roll forward on the upper surface of the tracks, causing the tracked chassis to travel forward. The left and right tracks of the crawler-type chassis can independently rotate, so that the turning radius of the crawler-type chassis is smaller.
The crawler-type chassis has the advantages of flexible action, large contact area with the ground, strong capability of passing through obstacles and the like. When the crawler-type chassis is through jolting the road surface or crossing the barrier, the track can receive ground shock, because the crawler-type chassis is provided with and hangs damper, vibrations can be absorbed through track, bogie wheel, elastic component etc. make the equipment vibrations of installing above the chassis alleviate or even eliminate, and then above equipment can work reliably and stably.
In the prior art, a christmas suspension, a candle suspension, a torsion bar suspension, etc. are generally adopted. The clitoris suspension is widely applied in a crawler-type suspension system, and has the advantages of good flexibility and reliability, simple structure, mutual independence among swing arms and the like, and has the defects of large internal space occupation of a vehicle body and small spring stroke. The candle type suspension is that a sleeve is used, a spring is arranged in the sleeve, a pressure rod upwards compresses the spring in the sleeve to generate elastic deformation to support a vehicle body, each group of suspensions is fixed with two small-diameter bogie wheels, and a bogie wheel swing arm middle shaft is arranged below the suspensions. The candle type suspension has the advantages of simple structure and the defect that all lateral force generated during the running of the crawler is acted on the pressure rod, so that the abrasion of the pressure rod and the sleeve is easily caused. One side of a torsion bar of the torsion bar suspension is arranged on the side wall of the vehicle body, the other side of the torsion bar suspension penetrates through a hole of the vehicle body and is connected to the swing arm, the torsion bar is twisted by the weight load on the wheel through the swing arm, and the obtained elastic force is used for supporting the vehicle body. The torsion bar suspension has the advantages of simple structure, small occupied space, large spring stroke, good reliability, and the disadvantages of poor comfort, large processing difficulty and inconvenient maintenance.
In order to improve a suspension structure of a crawler-type chassis, technicians introduce an asymmetric parallel damping type suspension system, but the suspension system occupies large space on two sides of a vehicle body, has high requirement on installation precision, smaller spring stroke and too compact arrangement among components, is easy to generate rigid collision, and has unobvious vibration filtering effect on high frequency and small amplitude of oscillation caused by a crawler structure. All lateral forces generated when the crawler steers act on the damping swing arm plate on one side, fatigue bending of the damping swing arm plate is easily caused, the processing technology of the damping swing arm plate needs to be improved, and the cost is increased.
Accordingly, further improvements and improvements are needed in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a combined horizontal spiral spring suspension system.
The purpose of the utility model is realized by the following technical scheme:
a combined horizontal spiral spring suspension system mainly comprises a damping mechanism and a tensioning mechanism. The damping mechanisms are arranged on two sides of the vehicle body, are abutted against the inner surface of the lower side crawler belt and bear the impact of the ground. The tensioning mechanisms are arranged on two sides of the vehicle body, are abutted against the inner surface of the upper crawler belt and bear the weight of the crawler belt.
Specifically, the damping mechanism comprises a bogie wheel, a front swing arm, a rear swing arm, a main shaft and an axial elastic element. The main shaft penetrates through the front swing arm and the rear swing arm and then is fixed on the side wall of the vehicle body. The front swing arm and the rear swing arm are rotatably connected with the main shaft. The upper end of the front swing arm is opposite to the upper end of the rear swing arm and is connected with the upper end of the rear swing arm through an axial elastic element. The lower ends of the front swing arm and the rear swing arm are both connected with the bogie wheels, so that the impact on the bogie wheels can be applied to the other side of the bogie wheels through the axial elastic element compressed by the front swing arm or the rear swing arm or the displacement of the bogie wheels on the other side of the front swing arm or the rear swing arm, and the purposes of buffering and shock absorption of the suspension system are achieved.
Further, the axial elastic element mainly comprises a damping spring and an oil pressure damper. One end of the oil pressure damper is connected with the upper end of the front swing arm, and the other end of the oil pressure damper is connected with the upper end of the rear swing arm. The damping spring is sleeved outside the oil pressure damper, one end of the damping spring is connected with the upper end of the front swing arm, and the other end of the damping spring is connected with the upper end of the rear swing arm.
In a preferred embodiment of the present invention, the displacement direction of the bogie wheel, the swing direction of the front swing arm and the rear swing arm, and the compression and expansion directions of the axial elastic element are all in the same plane.
In a preferred embodiment of the present invention, the damping mechanisms are mounted at equal intervals and equal heights on the single-side vehicle body in two sets.
Specifically, the tensioning mechanism mainly comprises a guide wheel, a tensioning spring, a tensioning damper, a supporting plate and a tensioning shaft. The vehicle body is provided with a slot for adjusting the horizontal displacement of the guide wheel. One end of the tensioning shaft is connected with the guide wheel, and the other end of the tensioning shaft is inserted into the groove, so that the guide wheel can horizontally move in the groove along with the tensioning shaft. The wheel surface of the guide wheel is in contact with the inner surface of the crawler. The supporting plate is fixedly arranged on the vehicle body and is positioned behind the guide wheels. One end of the tensioning damper is connected with the tensioning shaft, and the other end of the tensioning damper is connected with the supporting plate. One end of the tensioning spring is connected with the tensioning shaft, and the other end of the tensioning spring is connected with the supporting plate.
Further, the tensioning mechanism further comprises a supporting belt wheel. The supporting belt wheel is arranged between the driving wheel and the guide wheel, and the wheel surface of the supporting belt wheel upwards supports the inner surface of the crawler.
In a preferred embodiment of the present invention, the two sets of idler wheels are located at a trisection point of a distance between the driving wheel and the guide wheel.
As a preferable scheme of the utility model, the main shaft, the center of the bogie wheel and the center of the guide wheel are rotatably connected through cylindrical roller bearings.
As a preferable scheme of the utility model, the distance between each pair of the front and back adjacent bogie wheels is equal.
The working process and principle of the utility model are as follows: when the track marchs on pot-hole, unevenness's road surface, the damper who is located the bottom on the one hand through the luffing motion of the bogie wheel of front and back symmetry setting, on the other hand compresses axial elastic element through swing arm around through, still through the promotion of swing arm to another swing arm position, can show the impact that reduces the abominable road conditions in ground and to the cause of automobile body under the three aspect combined action, obtains better buffering, shock attenuation effect when providing good support for the automobile body. Meanwhile, the structure of the damping mechanism is optimized and adjusted to be simple and compact, the number of parts is small, the work is reliable, and the installation is convenient and rapid. Compared with the existing structure, the strength and the stability of the automobile are both obviously improved, the size is smaller, the gravity center is lower, and the comfort and the trafficability characteristic of the automobile body can be effectively improved.
Compared with the prior art, the utility model also has the following advantages:
(1) the track tensioning mechanism adopted by the combined horizontal spiral spring suspension system provided by the utility model enables the track to be more conveniently and quickly mounted, and the guide wheel tensioning device can automatically stretch out and draw back when the road surface is bumpy, so that the guide wheel is tightly attached to the track, and the track tensioning effect is realized.
(2) Compared with the combined horizontal spiral spring suspension system such as a Kreisti suspension system and the like, the combined horizontal spiral spring suspension system provided by the utility model has the advantages that the strength and the stability are obviously improved, the volume is reduced, the gravity center is reduced, the maintenance workload is reduced, and the comfort and the passing capability are improved. The damping spring and the oil pressure damper are horizontally and coaxially placed to form an elastic element, the elastic element can prevent the spring from being compressed or bounced too fast, and the comfort and the operation stability of the crawler-type chassis are improved. Upwards raise and compress elastic element when the bogie wheel of front side or rear side meets the barrier, elastic element can give the bogie wheel of opposite side with pressure transfer, and the track can both be hugged closely to so both sides bogie wheel, and suspension also can let the track hug closely ground simultaneously, so stability is fine.
(3) The crawler tensioning mechanism adopted by the combined horizontal spiral spring suspension system provided by the utility model can automatically tension the crawler and enables the installation of the crawler to be more convenient and faster. The guide wheel tensioning device is formed by horizontally and coaxially placing the tensioning spring with large hardness and small pitch and the tensioning damper with large damping stroke, and can automatically stretch out and draw back when the road surface is bumpy, so that the guide wheel is tightly attached to the track, the track tensioning effect is realized, and the track falling caused by the fact that the guide wheel tensioning device is too soft is avoided.
(4) The combined horizontal spiral spring suspension system provided by the utility model has the advantages of simpler and more compact chassis suspension structure, reduced volume, lowered gravity center, improved strength, lowered maintenance workload, improved comfort and passing capability, lowered cost and the like.
Drawings
Fig. 1 is a schematic structural view of a combined horizontal coil spring suspension system provided by the present invention.
Fig. 2 is a schematic structural diagram of the tensioning mechanism provided by the present invention.
Fig. 3 is a schematic structural diagram of a shock-absorbing mechanism provided by the present invention.
The reference numerals in the above figures illustrate:
1-guide wheel, 2-tensioning device, 2-1-tensioning spring, 2-2-tensioning damper, 3-support plate, 4-supporting wheel, 5-cylindrical roller bearing, 6-crawler belt, 7-main shaft, 8-axial elastic element, 8-1-damping spring, 8-2-oil pressure damper, 9-bogie wheel, 10-front swing arm, 11-rear swing arm, 12-driving wheel and 13-vehicle body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described below with reference to the accompanying drawings and examples.
Example 1:
as shown in fig. 1 to 3, the present embodiment discloses a combined horizontal coil spring suspension system, which mainly includes a damping mechanism and a tensioning mechanism. The damper mechanisms are attached to both sides of the vehicle body 13, and abut against the inner surface of the lower crawler 6 to receive the impact of the ground. The tightening mechanism is attached to both sides of the vehicle body 13, and abuts against the inner surface of the upper crawler 6 to support the weight of the crawler 6.
Specifically, the damping mechanism comprises a bogie wheel 9, a front swing arm 10, a rear swing arm 11, a main shaft 7 and an axial elastic element 8. The main shaft 7 passes through the front swing arm 10 and the rear swing arm 11 and then is fixed on the side wall of the vehicle body 13. The front swing arm 10 and the rear swing arm 11 are rotatably connected with the main shaft 7. The upper ends of the front swing arms 10 are opposite to the upper ends of the rear swing arms 11 and are connected to each other by an axial elastic element 8. The lower ends of the front swing arm 10 and the rear swing arm 11 are both connected with a bogie wheel 9, so that the axial elastic element 8 can be compressed or the bogie wheel 9 on the other side can be forced to move by the impact on the bogie wheel 9 through the front swing arm 10 or the rear swing arm 11, and the purposes of buffering and shock absorption of the suspension system can be achieved.
Further, the axial elastic element 8 mainly comprises a shock absorption spring 8-1 and an oil pressure damper 8-2. One end of the oil pressure damper 8-2 is connected with the upper end of the front swing arm 10, and the other end is connected with the upper end of the rear swing arm 11. The damping spring 8-1 is sleeved on the outer side of the oil pressure damper 8-2, one end of the damping spring is connected with the upper end of the front swing arm 10, and the other end of the damping spring is connected with the upper end of the rear swing arm 11.
As a preferable aspect of the present invention, the displacement direction of the bogie wheel 9, the swing direction of the front swing arm 10 and the rear swing arm 11, and the compression and expansion directions of the axial elastic element 8 are all on the same plane.
In a preferred embodiment of the present invention, the damping mechanisms are mounted at equal intervals and equal heights on the single-side vehicle body 13 in two sets.
Specifically, the tensioning mechanism mainly comprises a guide wheel 1 (mounted on a vehicle body 13 through a tensioning device 2), a tensioning spring 2-1, a tensioning damper 2-2, a support plate 3 and a tensioning shaft. The vehicle body 13 is provided with a slot for adjusting the horizontal displacement of the guide wheel 1. One end of the tensioning shaft is connected with the guide wheel 1, and the other end of the tensioning shaft is inserted into the groove, so that the guide wheel 1 can horizontally move in the groove along with the tensioning shaft. The wheel surface of the guide wheel 1 is contacted with the inner surface of the crawler 6. The support plate 3 is fixedly arranged on the vehicle body 13 and is positioned behind the guide wheel 1. One end of the tensioning damper 2-2 is connected with the tensioning shaft, and the other end of the tensioning damper is connected with the supporting plate 3. One end of the tensioning spring 2-1 is connected with the tensioning shaft, and the other end of the tensioning spring is connected with the supporting plate 3.
Further, the tensioning mechanism further comprises a supporting belt wheel 4. The supporting belt wheel 4 is arranged between the driving wheel 12 and the guide wheel 1, and the wheel surface of the supporting belt wheel upwards supports the inner surface of the crawler belt 6.
In a preferred embodiment of the present invention, the two sets of idler wheels 4 are located at the trisection point of the distance between the driving wheel 12 and the guide wheel 1.
In a preferable scheme of the utility model, the main shaft 7, the bogie wheel 9 and the guide wheel 1 are rotatably connected through cylindrical roller bearings 5.
As a preferable aspect of the present invention, the distance between each pair of the front and rear adjacent road wheels 9 is equal.
The working process and principle of the utility model are as follows: when track 6 marchd on pot-hole, unevenness's road surface, the damper who is located the bottom on the one hand through the luffing motion of the bogie wheel 9 of front and back symmetry setting, on the other hand compresses axial elastic element 8 through front and back swing arm, still through the promotion of swing arm to another swing arm position, can show the impact that reduces the abominable road conditions in ground and to the cause of automobile body 13 under the tripartite combined action, obtains better buffering, shock attenuation effect when providing good support for automobile body 13. Meanwhile, the structure of the damping mechanism is optimized and adjusted to be simple and compact, the number of parts is small, the work is reliable, and the installation is convenient and rapid. Compared with the existing structure, the strength and the stability of the automobile are both obviously improved, the size is smaller, the gravity center is lower, and the comfort and the trafficability characteristic of the automobile body 13 can be effectively improved.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (9)
1. A combined horizontal spiral spring suspension system is characterized by comprising a damping mechanism and a tensioning mechanism; the damping mechanisms are arranged on two sides of the vehicle body, are abutted against the inner surface of the lower crawler belt and bear the impact of the ground; the tensioning mechanisms are arranged on two sides of the vehicle body, are abutted against the inner surface of the upper crawler belt and bear the weight of the crawler belt;
the damping mechanism comprises a loading wheel, a front swing arm, a rear swing arm, a main shaft and an axial elastic element; the main shaft penetrates through the front swing arm and the rear swing arm and then is fixed on the side wall of the vehicle body; the front swing arm and the rear swing arm are rotatably connected with the main shaft; the upper end of the front swing arm is opposite to the upper end of the rear swing arm and is connected with the upper end of the rear swing arm through an axial elastic element; the lower ends of the front swing arm and the rear swing arm are both connected with the bogie wheels, so that the impact on the bogie wheels can be applied to the other side of the bogie wheels through the axial elastic element compressed by the front swing arm or the rear swing arm or the displacement of the bogie wheels on the other side of the front swing arm or the rear swing arm, and the purposes of buffering and shock absorption of the suspension system are achieved.
2. The modular horizontal coil spring suspension system of claim 1 wherein said axial resilient element comprises a shock absorbing spring and an oil damper; one end of the oil pressure damper is connected with the upper end of the front swing arm, and the other end of the oil pressure damper is connected with the upper end of the rear swing arm; the damping spring is sleeved outside the oil pressure damper, one end of the damping spring is connected with the upper end of the front swing arm, and the other end of the damping spring is connected with the upper end of the rear swing arm.
3. The modular horizontal coil spring suspension system of claim 1 wherein the direction of displacement of the road wheels, the direction of oscillation of the front and rear swing arms, and the direction of compression and expansion of the axial resilient elements are all in the same plane.
4. The modular horizontal coil spring suspension system of claim 1 wherein the shock absorbing mechanisms are mounted in two groups of one-sided vehicle bodies at equal intervals and at equal heights.
5. The modular horizontal coil spring suspension system of claim 1 wherein the tensioning mechanism includes a guide wheel, a tensioning spring, a tensioning damper, a support plate, and a tensioning shaft; the vehicle body is provided with a slot for adjusting the horizontal displacement of the guide wheel; one end of the tensioning shaft is connected with the guide wheel, and the other end of the tensioning shaft is inserted into the open slot, so that the guide wheel can horizontally move in the open slot along with the tensioning shaft; the wheel surface of the guide wheel is in contact with the inner surface of the crawler; the supporting plate is fixedly arranged on the vehicle body and is positioned behind the guide wheel; one end of the tensioning damper is connected with the tensioning shaft, and the other end of the tensioning damper is connected with the supporting plate; one end of the tensioning spring is connected with the tensioning shaft, and the other end of the tensioning spring is connected with the supporting plate.
6. The modular horizontal coil spring suspension system of claim 5 wherein the tensioning mechanism further comprises a carrier roller; the supporting belt wheel is arranged between the driving wheel and the guide wheel, and the wheel surface of the supporting belt wheel upwards supports the inner surface of the crawler.
7. The modular horizontal coil spring suspension system of claim 6 wherein the idler wheels are provided in two sets, each set being located at a point of trisection of the distance between the drive wheel and the idler wheel.
8. The modular horizontal coil spring suspension system of claim 5 wherein the rotatable connections are provided by cylindrical roller bearings on the main shaft, at the center of the bogie wheel and at the center of the guide wheel.
9. The modular horizontal coil spring suspension system of claim 1 wherein each pair of front and rear adjacent road wheels are equally spaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220186291.8U CN216761950U (en) | 2022-01-24 | 2022-01-24 | Combined horizontal spiral spring suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220186291.8U CN216761950U (en) | 2022-01-24 | 2022-01-24 | Combined horizontal spiral spring suspension system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216761950U true CN216761950U (en) | 2022-06-17 |
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ID=81979076
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220186291.8U Expired - Fee Related CN216761950U (en) | 2022-01-24 | 2022-01-24 | Combined horizontal spiral spring suspension system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216761950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115970205A (en) * | 2022-11-30 | 2023-04-18 | 河南云展创新智能装备有限公司 | Crawler-type unmanned fire truck for spraying water cannons |
-
2022
- 2022-01-24 CN CN202220186291.8U patent/CN216761950U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115970205A (en) * | 2022-11-30 | 2023-04-18 | 河南云展创新智能装备有限公司 | Crawler-type unmanned fire truck for spraying water cannons |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220617 |