CN213768758U - Crawler driving wheel with adjustable ground pressure - Google Patents
Crawler driving wheel with adjustable ground pressure Download PDFInfo
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- CN213768758U CN213768758U CN202022892810.6U CN202022892810U CN213768758U CN 213768758 U CN213768758 U CN 213768758U CN 202022892810 U CN202022892810 U CN 202022892810U CN 213768758 U CN213768758 U CN 213768758U
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- driving wheel
- track
- support frame
- adjustable ground
- lower support
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 18
- 239000000411 inducer Substances 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 230000002457 bidirectional effect Effects 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000035558 fertility Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model discloses a track driving wheel with adjustable ground pressure, which comprises a lower support frame with a plurality of loading wheels at the bottom, the lower support frame is fixedly connected with an upper support frame through a plurality of mechanical fluid double shock-absorbing devices, two ends of the support frame 5 are respectively fixed with a mounting seat and a few-tooth differential planet wheel reducer, an output shaft of the few-tooth differential planet wheel reducer is connected with a central shaft, the central shaft is rotatably connected with a driving wheel and a flange plate, the flange plate is fixed on the mounting seat, two ends of the lower support frame are provided with two groups of telescopic mechanisms, the telescopic mechanisms are connected with an inducer rotating shaft, the two inducers are connected with the driving wheel through track transmission, the bottom surfaces of the loading wheels and the inducers are horizontally arranged, the device improves the problems of large ground pressure, weak ground holding force and limited road condition adapting condition when the current engineering mechanical vehicle works, and can realize the large-range adjustment of the ground pressure of the track driving wheel during the work, so as to adapt to different road conditions.
Description
Technical Field
The utility model relates to a athey wheel field, concretely relates to ground connection specific pressure adjustable track drive wheel.
Background
With the continuous progress of science and technology, people continuously research various large-scale machines to assist in completing major engineering projects such as highways, bridges, buildings, underground engineering, emergency rescue and the like. For various historical reasons, the technical development of China in the aspect of engineering machinery is far behind that of the Western countries in the early years. However, with the attention of China to the manufacturing industry, corresponding policy and guidelines support the strong country of the manufacturing industry, the development of the manufacturing industry in China is accelerated, and meanwhile, a foundation is laid for improving the product quality of engineering machinery. With the continuous development of the Chinese reform, the investment of China in the aspect of infrastructure is continuously increased, and the assistance of large mechanical vehicles is often needed in the infrastructure. The method provides favorable conditions for breakthrough in the technical development of engineering machinery vehicles.
At present, most of large engineering mechanical vehicles on the domestic market are introduced by foreign technologies, and the price is very high. The domestic engineering machinery vehicle is really low in price, but due to the fact that the service life of the domestic engineering machinery vehicle is long, continuous working time is short, and the application range of the domestic engineering machinery vehicle is seriously influenced. Therefore, independent innovative technology development and material research are urgently needed, the market price of the large engineering machinery vehicle is reduced, the production efficiency and the production quality of the engineering machinery vehicle are improved, and the engineering machinery vehicle is ensured to adapt to various complex working environments.
The rubber tires are mostly used for engineering machinery vehicles, but the engineering machinery vehicles usually face a very complicated working environment, and are required to provide larger driving force, so that the rubber tires are suitable for complicated and uneven road surfaces. In order to provide enough driving force, the engineering machinery vehicle uses an engine with a larger model, so that the engineering machinery vehicle is very large, and the whole machine is heavier and heavier. However, unlike a traveling road, a road surface on which an engineering machine vehicle travels tends to be soft and uneven in geology. Heavy engineering machinery vehicle works under the soft work road conditions of ground, often can lead to engineering machinery vehicle to be absorbed in the mire, need consume very big manpower and materials and will pull out, and serious lead to engineering vehicle to scrap. In addition, work machine vehicles often carry many other devices while working, such as road pavers, excavator buckets, and the like. Therefore, more traction is needed, however, the tire of the traditional engineering machinery limits the contact area of the engineering machinery vehicle and the ground, and the traction can be improved only by increasing the self weight of the machine body and installing a high-power engine. This results in a constant weight of the fuselage, increasing the pressure on the ground. Therefore, new wheels need to be researched to solve the obstacles of the application of large engineering machinery vehicles in various complex engineering projects.
In the current research for solving the problem, the widened tires are mostly adopted, the requirement of large traction is realized by replacing a high-power engine, and the pressure on the ground is reduced as much as possible. The wheels of the engineering mechanical vehicle are generally specially designed aiming at the requirements of heavy load, large traction and the like; for example, the crawler belt is generally applied to military heavy machinery such as tanks and armored vehicles.
SUMMERY OF THE UTILITY MODEL
The technical insufficiency to the aforesaid exists, the utility model aims at providing a ground connection specific pressure adjustable track drive wheel, it has improved present engineering machine tool vehicle during operation big to ground pressure, grab the land fertility and not strong and adapt to the limited problem of road conditions condition, can realize the track drive wheel and adjust on a large scale at during operation ground connection specific pressure to adapt to different road conditions.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a track driving wheel with adjustable ground pressure, which comprises a lower support frame with a plurality of loading wheels at the bottom, wherein the upper end surface of the lower support frame is fixedly connected with an upper support frame through a plurality of mechanical fluid double shock-absorbing devices, the two ends of the upper end surface of the support frame are respectively fixed with a mounting seat and a few-tooth differential planet wheel reducer, the output shaft of the few-tooth differential planet wheel reducer is connected with a central shaft, one end of the central shaft, which is far away from the few-tooth differential planet wheel reducer, is sequentially connected with a driving wheel and a flange plate in a rotating way, the flange plate is fixed on the mounting seat, two groups of telescopic mechanisms are symmetrically arranged at the front end and the rear end of the lower support frame, each telescopic mechanism comprises a bidirectional independent piston rod hydraulic cylinder and a plurality of telescopic joints, one end of the bidirectional independent piston rod hydraulic cylinder and the telescopic joints is fixed on the lower support frame, and the other ends of the bidirectional independent piston rod hydraulic cylinder and the telescopic joints are fixedly connected with a rotating shaft of an inducer, the two inducer wheels are in transmission connection with the driving wheel through a crawler belt, and the bottom surfaces of the bogie wheels and the inducer wheels are horizontally arranged.
Preferably, the track is the integral track of rubber, and the both sides of track inner face are rough treatment and with inducer, bogie wheel direct contact, realize friction drive, the centre of track inner face is equipped with the interior tooth of track with the drive wheel meshing transmission, tooth width is the same with the drive wheel width in the track, and the track outside equipartition has the outer tooth of track that can increase the grip.
Preferably, the driving wheel is cage-shaped, and a plurality of rotatable cylindrical rollers are uniformly distributed on the periphery of the driving wheel, the cylindrical rollers are engaged with inner teeth of the track uniformly arranged on the inner side of the track to realize motion transmission, and static friction is changed into dynamic friction when the cylindrical rollers are engaged with the inner teeth of the track, so that abrasion is reduced.
Preferably, the telescopic joint is made of a plurality of sections of square steel or round steel in sliding connection.
Preferably, the upper support frame and the lower support frame are made of castings.
Preferably, piston rods are arranged on two sides of the bidirectional independent piston rod hydraulic cylinder, and a bidirectional hydraulic lock is arranged in a hydraulic oil path of the bidirectional independent piston rod hydraulic cylinder, so that a bidirectional locking function when the bidirectional independent piston rod hydraulic cylinder stops stretching can be realized.
Preferably, the middle shaft is rotatably connected with the center of the driving wheel through a bearing seat, and the middle shaft is rotatably connected with the flange plate through a double deep groove ball bearing.
Preferably, the output shaft of the planetary reducer with small tooth difference is connected with the middle shaft through a coupler.
The beneficial effects of the utility model reside in that:
the crawler driving wheel solves the problems of large ground pressure, weak ground grabbing force and limited road condition adaptation condition of the conventional engineering mechanical vehicle during working, and the large-range adjustment of the ground pressure of the crawler driving wheel during working can be realized by the aid of the guide wheels on two sides through the telescopic motion of the bidirectional independent piston rod hydraulic cylinder so as to adapt to different road condition conditions;
the mechanical fluid double-damping device ensures real-time tensioning of the track and has certain damping capacity;
piston rods on two sides of the bidirectional independent piston rod hydraulic cylinder can independently do telescopic motion, and a bidirectional hydraulic lock is arranged in a hydraulic oil path, so that bidirectional locking when the bidirectional independent piston rod hydraulic cylinder stops telescopic motion is realized, the working safety is ensured, and the reliability of a crawler belt driving wheel is improved;
the planetary gear reducer with small tooth difference can realize the functions of speed reduction and torque increase, and can provide enough traction force when in work.
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 front view of a track driving wheel with adjustable ground pressure according to an embodiment of the present invention;
fig. 2 is a rear view of a track driving wheel with adjustable ground pressure according to an embodiment of the present invention;
fig. 3 is a left side view of a track driving wheel with adjustable ground pressure according to an embodiment of the present invention;
fig. 4 is a schematic view of a positional relationship between a driving wheel and a flange provided in an embodiment of the present invention;
fig. 5 is a schematic view illustrating a connection between a lower support frame and an inducer according to an embodiment of the present invention;
fig. 6 is a schematic structural view of an upper support frame provided in an embodiment of the present invention;
fig. 7 is a schematic structural view of a bidirectional independent piston rod hydraulic cylinder provided in an embodiment of the present invention.
Description of reference numerals:
1-a driving wheel; 2-inducer; 3-a bogie wheel; 4, a lower support frame; 5, an upper support frame; 6, a crawler belt; 7-outer teeth of the track; 8-small tooth difference planet wheel speed reducer; 9-mechanical fluid double damping device; 10, a mounting seat; 13-expansion joint; 16-a flange plate; 17-the middle axis; 18-deep groove ball bearing; 19-a cylindrical roller; 20-bidirectional independent piston rod hydraulic cylinder; and 21, a coupler.
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.
As shown in fig. 1 to 7, a track driving wheel with adjustable ground pressure ratio comprises a lower support frame 4 provided with a plurality of loading wheels 3 at the bottom, wherein the upper end surface of the lower support frame 4 is fixedly connected with an upper support frame 5 through a plurality of mechanical fluid double shock absorbers 9, two ends of the upper end surface of the support frame 5 are respectively fixed with a mounting seat 10 and a small tooth difference planetary reducer 8, and the small tooth difference planetary reducer 8 is a K-H-V type N-involute small tooth difference planetary reducer, so that the track driving wheel has the advantages of compact structure, small volume and large bearing capacity, and meets the use requirements of engineering vehicles; the output shaft of the small-tooth-difference planetary gear reducer 8 is connected with a middle shaft 17, one end of the middle shaft 17, far away from the small-tooth-difference planetary gear reducer 8, is sequentially and rotatably connected with a driving wheel 1 and a flange plate 16, the flange plate 16 is fixed on a mounting seat 10, two groups of telescopic mechanisms are symmetrically arranged at the front end and the rear end of a lower support frame 4, each telescopic mechanism comprises a bidirectional independent piston rod hydraulic cylinder 20 and a plurality of groups of telescopic joints 13, one end of each of the bidirectional independent piston rod hydraulic cylinders 20 and one end of each of the telescopic joints 13 are fixed on the lower support frame 4, the other ends of the bidirectional independent piston rod hydraulic cylinders 20 and the other ends of the telescopic joints 13 are fixedly connected with rotating shafts of induction wheels 2, the two induction wheels 2 are in transmission connection with the driving wheel 1 through a crawler 6, and the bottom surfaces of a bogie wheel 3 and the induction wheels 2 are horizontally arranged; when the bidirectional independent piston rod hydraulic cylinder 20 does an extension action, the distance between the inducer 2 on the two sides is increased, the contact area of the whole crawler belt 6 and the ground is increased, the ground specific pressure is reduced, the crawler belt 6 is stretched to force the mechanical fluid double damping device 9 to be compressed, the driving wheel 1 moves downwards, and the crawler belt 6 is tensioned in real time; when the bidirectional independent piston rod hydraulic cylinder 20 does contraction action, the working principle is opposite.
The crawler 6 is the integral crawler of rubber, and the both sides of 6 inner faces of crawler are done rough treatment and with inducer 2, bogie wheel 3 direct contact, realize friction drive, and the centre of 6 inner faces of crawler is equipped with the interior tooth of the crawler with drive wheel 1 meshing transmission, and tooth width is the same with drive wheel 1 width in the crawler, and 6 outside equipartitions have the outer tooth 7 of the crawler that can increase the land fertility of grabbing.
The driving wheel 1 is cage-shaped, a plurality of cylindrical rollers 19 capable of rotating are uniformly distributed on the periphery of the driving wheel, the cylindrical rollers 19 are meshed with inner teeth of the crawler uniformly arranged on the inner side of the crawler 6 to realize motion transmission, and static friction is changed into dynamic friction when the cylindrical rollers 19 are meshed with the inner teeth of the crawler, so that abrasion is reduced.
The telescopic joint 13 is made of a plurality of sections of square steel or round steel in sliding connection.
And the upper support frame 5 and the lower support frame 4 are made of castings.
The two sides of the bidirectional independent piston rod hydraulic cylinder 20 are both provided with piston rods, and a bidirectional hydraulic lock is arranged in a hydraulic oil path of the bidirectional independent piston rod hydraulic cylinder 20, so that the bidirectional locking function when the bidirectional independent piston rod hydraulic cylinder 20 stops stretching can be realized.
The middle shaft 17 is rotatably connected with the center of the driving wheel 1 through a bearing seat, the mounting mode of the driving wheel 1 belongs to unilateral mounting, and a large load is borne in the working process, so that the double deep groove ball bearing 18 is matched between the driving shaft 1 and the driving shaft flange plate 16.
The output shaft of the planetary reducer 8 with small tooth difference is connected with a middle shaft 17 through a coupler 21.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A track driving wheel with adjustable ground pressure is characterized by comprising a lower support frame (4) with a plurality of loading wheels (3) arranged at the bottom, wherein the upper end face of the lower support frame (4) is fixedly connected with an upper support frame (5) through a plurality of mechanical fluid double shock absorption devices (9), two ends of the upper end face of the support frame (5) are respectively fixed with a mounting seat (10) and a small-tooth-difference planetary gear reducer (8), an output shaft of the small-tooth-difference planetary gear reducer (8) is connected with a middle shaft (17), one end, far away from the small-tooth-difference planetary gear reducer (8), of the middle shaft (17) is sequentially and rotatably connected with a driving wheel (1) and a flange plate (16), the flange plate (16) is fixed on the mounting seat (10), two groups of telescopic mechanisms are symmetrically arranged at the front end and the rear end of the lower support frame (4), and the telescopic mechanisms comprise bidirectional independent piston rods (20) and a plurality of telescopic joints (13), one end of each of the two-way independent piston rod hydraulic cylinder (20) and the telescopic joint (13) is fixed on the lower support frame (4), the other end of each of the two-way independent piston rod hydraulic cylinder (20) and the telescopic joint (13) is fixedly connected with a rotating shaft of the inducer (2), the inducer (2) is in transmission connection with the driving wheel (1) through the crawler belt (6), and the bottom surfaces of the bogie wheel (3) and the inducer (2) are horizontally arranged.
2. The track driving wheel with the adjustable ground contact specific pressure as claimed in claim 1, wherein the track (6) is a rubber integral track, two sides of the inner surface of the track (6) are roughened and directly contacted with the inducer (2) and the bogie wheel (3) to realize friction transmission, the middle of the inner surface of the track (6) is provided with track inner teeth meshed with the driving wheel (1) for transmission, the width of the track inner teeth is the same as that of the driving wheel (1), and track outer teeth (7) capable of increasing ground gripping force are uniformly distributed outside the track (6).
3. A track driving wheel with adjustable ground contact specific pressure as claimed in claim 2, characterized in that the driving wheel (1) is cage-shaped and has a plurality of cylindrical rollers (19) which can rotate uniformly distributed on the periphery, the cylindrical rollers (19) realize motion transmission by engaging with the track inner teeth uniformly distributed on the inner side of the track (6), and static friction is changed into dynamic friction when the cylindrical rollers (19) are engaged with the track inner teeth so as to reduce abrasion.
4. A track driving wheel with adjustable ground contact pressure as claimed in claim 1, characterized in that said telescopic joint (13) is made of a plurality of sections of sliding-connected square or round steel.
5. A track driving wheel with adjustable ground contact pressure as claimed in claim 1, characterized in that said upper supporting frame (5) and lower supporting frame (4) are made of casting.
6. The caterpillar driving wheel with adjustable ground pressure according to claim 1, wherein the bidirectional independent piston rod hydraulic cylinder (20) is provided with piston rods on both sides and a bidirectional hydraulic lock in a hydraulic oil path, so that a bidirectional locking function when the bidirectional independent piston rod hydraulic cylinder (20) stops stretching can be realized.
7. A caterpillar driving wheel with adjustable ground contact specific pressure as claimed in claim 1, wherein the middle shaft (17) is rotatably connected with the center of the driving wheel (1) through a bearing seat, and the middle shaft (17) is rotatably connected with the flange plate (16) through a double deep groove ball bearing (18).
8. A caterpillar driving wheel with adjustable ground pressure according to claim 1, characterized in that the output shaft of the planetary reducer (8) with less teeth difference is connected with the middle shaft (17) through a coupling (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022892810.6U CN213768758U (en) | 2020-12-04 | 2020-12-04 | Crawler driving wheel with adjustable ground pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022892810.6U CN213768758U (en) | 2020-12-04 | 2020-12-04 | Crawler driving wheel with adjustable ground pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213768758U true CN213768758U (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022892810.6U Active CN213768758U (en) | 2020-12-04 | 2020-12-04 | Crawler driving wheel with adjustable ground pressure |
Country Status (1)
| Country | Link |
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| CN (1) | CN213768758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113734309A (en) * | 2021-09-26 | 2021-12-03 | 北京凌天智能装备集团股份有限公司 | Crawler system and crawler processing technology |
-
2020
- 2020-12-04 CN CN202022892810.6U patent/CN213768758U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113734309A (en) * | 2021-09-26 | 2021-12-03 | 北京凌天智能装备集团股份有限公司 | Crawler system and crawler processing technology |
| CN113734309B (en) * | 2021-09-26 | 2024-02-09 | 北京凌天智能装备集团股份有限公司 | Track system and track processing technology |
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