CN217496309U - Front-drive crawler belt of full-drive traction chassis - Google Patents
Front-drive crawler belt of full-drive traction chassis Download PDFInfo
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- CN217496309U CN217496309U CN202221285099.0U CN202221285099U CN217496309U CN 217496309 U CN217496309 U CN 217496309U CN 202221285099 U CN202221285099 U CN 202221285099U CN 217496309 U CN217496309 U CN 217496309U
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Abstract
The utility model provides a front-drive crawler belt of a full-drive traction chassis, wherein two sides of the chassis are provided with walking wheels which rotate relatively independently, and the liftable front-drive crawler belt comprises a crawler belt, a crawler belt driving mechanism and a lifting mechanism; the crawler driving mechanism is provided with a differential mechanism, the differential mechanism is provided with two rotating shafts, and the two rotating shafts are in transmission connection with the traveling wheels at two sides; the lifting mechanism comprises an electric push rod, a shock absorber, a connecting frame, a lifting arm and a swing arm. The liftable front-drive crawler provided by the utility model is provided with a differential mechanism, and is matched with two walking wheels running independently at the rear side, so that the traction chassis can realize in-situ steering, and the maneuverability in narrow space is stronger; in addition, the crawler belt is also provided with a lifting mechanism which can drive the front end of the crawler belt to lift up and descend, so that the full-drive traction chassis has flexible follow-up and active ground profiling capability and intelligent posture regulation capability, the full-drive traction chassis is ensured to be fully grounded and has the best traction capability, and meanwhile, the trafficability is improved; the capability of crossing obstacles and crossing ravines is improved.
Description
Technical Field
The utility model relates to the field of machinary, concretely relates to drive forerunner's track that pulls chassis entirely.
Background
The traction chassis is mainly divided into a wheel chassis or a crawler chassis at present, and the wheel chassis has the greatest advantages of low oil consumption and convenience for maneuvering. The crawler belt walking device has the characteristics of large driving force, good cross-country performance and stability, large climbing capacity, small turning radius and good flexibility. But the crawler-type traveling device has high manufacturing cost, low running speed, large power consumption during running and steering and quick part abrasion. Compared with crawler type running gear, the tyre type running gear has the advantages of high running speed, good maneuverability, no damage to road surface caused by running tyre, and thus is very popular in city construction, and has the defects of large specific pressure of ground connection and small climbing capability.
The liftable front-drive crawler belt of the full-drive traction chassis is hopefully provided, the crawler belt is matched with the walking wheels which independently rotate on two sides of the rear end of the full-drive traction chassis, so that the full-drive traction chassis is higher in maneuverability and obstacle-crossing capability, and the liftable front-drive crawler belt can have an in-situ steering function which is not possessed by other crawler chassis, and is expected to play an active role in the fields of agriculture, emergency rescue, fire patrol and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a liftable forerunner track of a full-drive traction chassis, wherein the two sides of the full-drive traction chassis are provided with walking wheels which rotate relatively independently, and the liftable forerunner track comprises a track, a track driving mechanism and a lifting mechanism;
the crawler driving mechanism comprises a crawler driving wheel and a driven wheel, the crawler driving wheel and the driven wheel are in transmission connection through a crawler, the driven wheel is arranged on a crawler wheel supporting frame, a differential mechanism is fixedly arranged at a rotating shaft of the crawler driving wheel, the differential mechanism is provided with two rotating shafts, and the two rotating shafts are in transmission connection with the traveling wheels at two sides;
the lifting mechanism comprises an electric push rod, a shock absorber, a connecting frame, a lifting arm and a swing arm, wherein two ends of the electric push rod are respectively connected with a full-drive traction chassis and the connecting frame in a rotating mode, the shock absorber is fixed on the connecting frame, the connecting frame is connected with the full-drive traction chassis through a connecting rod, the other end of the connecting frame is connected with the lifting arm in a rotating mode, the lifting arm is fixedly connected with the swing arm and a crawler wheel supporting frame, and the rear end portion of the swing arm is rotatably installed on a rotating shaft.
Furthermore, the differential mechanism comprises a differential mechanism shell which is coaxially and fixedly connected with the crawler driving wheel, a first bevel gear, a second bevel gear and a planet wheel shaft in the middle are arranged in the differential mechanism shell, two opposite clamping grooves are formed in an inner ring of the differential mechanism shell, the planet wheel shaft is installed between the two clamping grooves, the first bevel gear and the second bevel gear are respectively fixed at opposite ends of the two rotating shafts, and third bevel gears which are simultaneously meshed with the first bevel gear and the second bevel gear are fixed at two ends of the planet wheel shaft.
Furthermore, the connecting frame is U-shaped, the electric push rod is located on the inner side of the U-shaped connecting frame, and two shock absorbers are fixedly mounted on two sides of the outer portion of the U-shaped connecting frame respectively.
Furthermore, a mounting substrate is fixedly mounted on the full-drive traction chassis, and the electric push rod and the connecting rod are rotatably connected to the mounting substrate.
Furthermore, the lifting arm is a door-shaped frame, and both sides of the bottom of the lifting arm are provided with a swing arm.
Furthermore, a plurality of tensioning wheels are arranged on the crawler wheel supporting frame.
The liftable front-drive crawler belt of the full-drive traction chassis provided by the utility model is matched with two walking wheels running independently at the rear side, so that the traction chassis can realize in-situ steering, and the maneuverability in narrow space is stronger; in addition, the crawler is also provided with a lifting mechanism for lifting or descending the front end of the traction crawler, so that the capability of crossing obstacles and ravines is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic view of a full-drive traction chassis carrying a liftable front-drive crawler according to the present invention;
FIG. 2 is a perspective view of a liftable front-drive crawler;
FIG. 3 is a top view block diagram of a liftable precursor track;
FIG. 4 is a side view block diagram of a liftable precursor track;
FIG. 5 is a schematic view of a track with swing arms mounted on both shafts;
FIG. 6 is a schematic view of two shafts connected by a reduction box;
FIG. 7 is a schematic view of the track drive wheel and internal differential;
FIG. 8 is a schematic view of the connections of the gears of the differential between the shafts;
FIG. 9 is a schematic view of a first pivot steering mode of the present invention;
fig. 10 is a schematic view of a second pivot steering system according to the present invention.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
In order to thoroughly understand the present invention, detailed steps and detailed structures will be provided in the following description so as to explain the technical solution of the present invention. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.
The utility model provides a can lift forerunner's track of driving traction chassis entirely drives traction chassis entirely and is equipped with relative independent pivoted walking wheel 201 in automobile body 100 both sides, can lift forerunner's track and include track 301, track actuating mechanism 310 and lifting mechanism 320.
The track driving mechanism 310 comprises a track driving wheel 313 and a driven wheel 314, wherein the track driving wheel 313 and the driven wheel 314 are in transmission connection through a track 301, as shown in fig. 4, the driven wheel 314 is mounted on a track wheel support 315, as shown in fig. 4.
As shown in fig. 5, a differential 312 is fixedly mounted at a rotating shaft of the crawler driving wheel 313, the differential 312 is provided with two rotating shafts 311, the two rotating shafts 311 are respectively in transmission connection with the traveling wheels 201 at two sides, and a medium for transmission connection may be a chain/belt/universal joint, etc.
With further reference to fig. 7 and 8, the differential 312 includes a differential case 312-4 coaxially and fixedly connected to the track driving wheel 313, a first bevel gear 312-1, a second bevel gear 312-2 and a middle planetary gear shaft 312-3 are disposed in the differential case 312-4, an inner ring of the differential case 312-4 is provided with two opposite locking slots 312-4a, the planetary gear shaft 312-3 is installed between the two locking slots 312-4a, the first bevel gear 312-1 and the second bevel gear 312-2 are respectively fixed at opposite ends of the two rotating shafts 311, and a third bevel gear 312-3a simultaneously engaged with the first bevel gear 312-1 and the second bevel gear 312-2 is fixed at both ends of the planetary gear shaft 312-3. When the differential case 312-4 is rotating, it drives the track 301 to rotate, and conversely, when the differential case 312-4 is braking, the track 301 is also braked.
The utility model discloses a can lift forerunner's track and dispose differential mechanism 312, through collocation automobile body rear both sides independent pivoted walking wheel 201 relatively, two kinds of modes that pivot turned to have been had:
taking fig. 9 as an example, the pivot steering method is described as follows:
1) the left road wheel 201 (namely the wheel at the lower side of the figure 9) is in a follow-up free state through a gearbox clutch brake mechanism.
2) The differential case 312-4 of the differential 312 is fixedly connected with the rotating shaft of the caterpillar driving wheel. This condition requires the differential case to be braked, i.e. the track drive wheels 313 are in a braked condition.
3) Under the above two conditions, as shown in fig. 9, when the machine is moving forward, the right road wheel 201 rotates to drive the right half shaft of the differential 312 to rotate, at this time, since the differential housing 312-4 is fixed, the half shaft of the differential left 312 is reversed, so as to drive the left chain wheel/belt pulley backward and drive the left road wheel 201 to be reversed, as shown by the arrow directions of the two road wheels in fig. 9. The advancing directions of the two wheels of the whole machine are shown in fig. 9, the front crawler type brake is adopted, and the final result is that the whole machine takes the contact point A of the crawler type and the ground as the origin to perform pivot steering movement.
Taking fig. 10 as an example, a pivot steering mode two will be described:
1) unlike the first steering mode, the left road wheel 201 is in a braking state through the gearbox.
2) In this state, the crawler drive wheel 313 is in a non-braking state (free state).
3) Under the above two conditions, as shown in fig. 10, when the machine advances, the right half shaft rotates to drive the traveling wheels to advance, so as to drive the right sprocket/belt to advance, the right half shaft of the differential rotates, and at this time, the differential housing 312-4 is not braked, so that the left traveling wheels 201 are in a braking state, and the left half shaft of the differential is stationary. In accordance with the differential principle, differential housing 312-4 operates at 2 times the speed of the right differential half shaft, thereby driving the tracks to operate at 2 times the speed of the right differential half shaft.
The final result is that the machine will make pivot steering motion with the contact point B of the left wheel and the ground as the origin.
It should be noted that the structure of the all-wheel-drive traction chassis for realizing the relatively independent rotation at the two-side walking wheels 201 is recorded in another patent application filed on the same application date of the applicant and the present case, and the utility model discloses a structure of the all-wheel-drive traction chassis for realizing the relatively independent rotation at the walking wheels 201 is not in the structure of the walking wheels 201 for independently rotating, and therefore, the structural characteristics thereof are not repeated herein.
As shown in fig. 1-6, the lifting mechanism 320 includes an electric push rod 321, a shock absorber 322, a connecting frame 323, a lifting arm 324, and a swing arm 325.
The full-drive traction chassis is fixedly provided with a mounting base plate 327, and two ends of the electric push rod 321 are respectively connected with the mounting base plate 327 and the connecting frame 323 in a rotating manner. The connecting frame 323 is U-shaped, the electric push rod 321 is positioned at the inner side of the U-shaped connecting frame 323, and a shock absorber 322 is fixedly arranged at each of the two outer sides of the U-shaped connecting frame. The front end of the shock absorber 322 is pivotally connected to a "door" shaped lift arm 324 and the rear end is pivotally connected to a mounting base 327 via a link 326. The lifting arm 324 is fixedly connected with the swing arm 325 and the track wheel support frame 315, and the rear end of the swing arm 325 is rotatably mounted on the rotating shaft 311.
To ensure the stability of the track rotation, a plurality of tension pulleys 316 are mounted on the track wheel support 315. For tensioning the track 301, as shown in figure 4.
The principle of the lifting mechanism 320 driving the front end of the track to lift is briefly described as follows: the front end of the connecting frame 323 is rotatably connected with the push rod, and the rear end of the connecting frame 323 is rotatably connected with the mounting base plate 327 through the connecting rod 326, so that the front end of the connecting frame 323 is lifted finally, the connecting frame 323 drives the lifting arm 32 to lift, the lifting arm 324 drives the front end of the swinging arm 325 to rotate around the rotating shaft 311 and lift upwards, the front end of the whole crawler is driven to lift finally, and the rear end of the whole crawler is still in contact with the ground, so that the crawler can climb over obstacles with a certain height. The electric push rod 321 is pushed forward to realize the descending of the front end of the crawler belt, which is the reverse of the above process and will not be described herein.
The utility model has the advantages as follows:
1) the wheel-track combined type walking mechanism with the ankle simulating function and the regular-triangle-shaped distribution formed by the joint track and the two parallel walking wheels at the rear part has flexible follow-up and active ground profiling capability and intelligent posture regulation capability. The sufficient grounding is ensured, the optimal traction capacity is exerted, and meanwhile, the passing performance is improved;
2) the front end of the traction chassis is provided with a unique ground-attached walking mold crawler belt, so that the gravity center height and the overall height of the machine body are greatly reduced, the anti-overturning capacity of the operation and the stability of the whole machine are improved, and the planting and breeding operation can be conveniently carried out in a greenhouse, an orchard and the like or between livestock pens and poultry houses in a limited narrow space;
3) the liftable front-drive crawler belt can realize in-situ steering by matching with two walking wheels which independently run at the rear side, and the traction chassis has stronger maneuverability in narrow space;
4) the crawler is provided with a lifting mechanism for lifting or descending the front end of the traction crawler, so that the capability of crossing obstacles and crossing gullies is improved;
5) the lifting mechanism is arranged above the rear side of the track, so that the transverse space is not occupied, the situation that barriers on two sides of the track collide with the lifting mechanism in the advancing process is avoided, and the effect of protecting the lifting mechanism is achieved;
5) both sides of the track are provided with swing arms, and the two swing arms are fixedly connected with the door type lifting arms, so that the stress in the lifting process is more uniform.
The above description is that of the preferred embodiment of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; without departing from the scope of the invention, it is intended that the present invention shall not be limited to the above-described embodiments, but that the present invention shall include all modifications, equivalents and alternatives. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still fall within the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.
Claims (6)
1. A front-drive crawler of a full-drive traction chassis is provided with walking wheels (201) which rotate relatively and independently at two sides, and is characterized in that the front-drive crawler comprises a crawler (301), a crawler driving mechanism (310) and a lifting mechanism (320);
the crawler driving mechanism (310) comprises a crawler driving wheel (313) and a driven wheel (314), the crawler driving wheel (313) is in transmission connection with the driven wheel (314) through a crawler (301), the driven wheel (314) is installed on a crawler wheel supporting frame (315), a differential (312) is fixedly installed at a rotating shaft of the crawler driving wheel (313), the differential (312) is provided with two rotating shafts (311), and the two rotating shafts (311) are respectively in transmission connection with the traveling wheels (201) on the two sides;
lifting mechanism (320) include electric push rod (321), bumper shock absorber (322), link (323), lift arm (324) and swing arm (325), the both ends of electric push rod (321) respectively with drive entirely and pull the chassis, link (323) rotate and are connected, bumper shock absorber (322) are fixed on link (323), link (323) one end is passed through connecting rod (326) and is pulled the chassis with driving entirely and link to each other, the other end rotates with lift arm (324) and is connected, lift arm (324) and swing arm (325), athey wheel support frame (315) fixed connection, and swing arm (325) rear end rotates and installs on pivot (311).
2. The front-wheel drive track of the full-drive traction chassis according to claim 1, wherein the differential (312) comprises a differential housing (312-4) coaxially and fixedly connected with the track driving wheel (313), a first bevel gear (312-1), a second bevel gear (312-2) and a middle planet wheel shaft (312-3) are arranged in the differential housing (312-4), two opposite clamping grooves (312-4a) are formed in an inner ring of the differential housing (312-4), the planet wheel shaft (312-3) is installed between the two clamping grooves (312-4a), the first bevel gear (312-1) and the second bevel gear (312-2) are respectively fixed at opposite ends of the two rotating shafts (311), and two ends of the planet wheel shaft (312-3) are fixed with a first bevel gear (312-1) and a second bevel gear (312-2) which are simultaneously fixed with the first bevel gear (312-1), A third bevel gear (312-3a) engaged with the second bevel gear (312-2).
3. The front-drive caterpillar of the all-drive traction chassis according to claim 1, wherein the connecting frame (323) is U-shaped, the electric push rod (321) is positioned at the inner side of the U-shaped connecting frame (323), and a shock absorber (322) is fixedly arranged at each of the two outer sides of the U-shaped connecting frame.
4. The front-drive caterpillar track of the all-drive traction chassis according to claim 1, wherein a mounting base plate (327) is fixedly mounted on the all-drive traction chassis, and one end of each of the electric push rod (321) and the connecting rod (326) is rotatably connected to the mounting base plate (327).
5. The front drive caterpillar of the all-wheel-drive traction chassis as claimed in claim 1, wherein the lifting arm (324) is a "gate" frame, and a swing arm (325) is mounted on both sides of the bottom of the lifting arm (324).
6. The forward drive track of an all-drive tractor chassis of claim 1, wherein a plurality of tension wheels (316) are mounted on the track wheel support frame (315).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221285099.0U CN217496309U (en) | 2022-05-26 | 2022-05-26 | Front-drive crawler belt of full-drive traction chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221285099.0U CN217496309U (en) | 2022-05-26 | 2022-05-26 | Front-drive crawler belt of full-drive traction chassis |
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| Publication Number | Publication Date |
|---|---|
| CN217496309U true CN217496309U (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221285099.0U Active CN217496309U (en) | 2022-05-26 | 2022-05-26 | Front-drive crawler belt of full-drive traction chassis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117963024A (en) * | 2024-04-01 | 2024-05-03 | 电子科技大学成都学院 | Self-adaptive crawler robot |
-
2022
- 2022-05-26 CN CN202221285099.0U patent/CN217496309U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117963024A (en) * | 2024-04-01 | 2024-05-03 | 电子科技大学成都学院 | Self-adaptive crawler robot |
| CN117963024B (en) * | 2024-04-01 | 2024-05-28 | 电子科技大学成都学院 | Self-adaptive crawler robot |
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