CN114633819B

CN114633819B - Crawler belt walking device

Info

Publication number: CN114633819B
Application number: CN202210451897.4A
Authority: CN
Inventors: 刘卫东; 周申; 李秀娟; 张秋实
Original assignee: Feynman Technology Qingdao Co ltd; Qingdao Automotive Research Institute Jilin University; Jilin University
Current assignee: Feynman Technology Qingdao Co ltd; Qingdao Automotive Research Institute Jilin University; Jilin University
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2023-02-03
Anticipated expiration: 2042-04-27
Also published as: CN114633819A

Abstract

The application discloses crawler belt walking device. The crawler belt walking device is arranged on a tire of a vehicle and comprises a frame; the bearing assembly is arranged on the frame and used for placing the tire; the crawler assembly is arranged on the frame and used for switching the running mode of the tire into a crawler running mode; the first end of the wheel-track connecting structure is connected to the rack in a swinging mode, the second end of the wheel-track connecting structure is connected to a rim of the tire in a rotating mode, and the second end of the wheel-track connecting structure is detachably connected with the rim of the tire; and the transmission assembly is at least partially arranged in the wheel-track connecting structure and is used for connecting the tire and the track assembly in a transmission way, the driving end of the transmission assembly is arranged on the rim of the tire, and the driven end of the transmission assembly is arranged on the track assembly. The embodiment of this application can solve the relatively poor problem of crawler travel unit connection stability among the prior art, has tire and crawler travel unit and connects more stable beneficial effect.

Description

Crawler belt walking device

Technical Field

The application belongs to the technical field of vehicle auxiliary accessories, and particularly relates to a crawler traveling device.

Background

In order to solve the problem that the automobile is difficult to run smoothly on a snowy road surface, the automobile usually adds a snowy antiskid measure on a tire: the method can enhance the friction force between the automobile and the snow or ice surface to a certain degree and improve the ground gripping capability, but the method still has the disadvantages of difficulty in handling the extremely severe road surface such as a deep snow or muddy road section and time and labor consumption in installing anti-skid measures.

In view of the above, a tire-driven crawler system apparatus has been developed. The device has the following advantages: the cross-country vehicle can be equipped with the device, and the train running gear will become crawler running gear, and chassis height also obtains promoting simultaneously, and cross-country nature, trafficability characteristic, antiskid nature all can improve.

However, the device is directly driven by the outer tire surface of the tire through friction, the rollers on the front side and the rear side are driven to rotate through contact friction when the tire rotates, and when the rollers rotate, the roller teeth of the rollers are meshed with the crawler belt to drive the crawler belt to rotate, so that the walking process of the device is completed. The wear on the tire is exacerbated by the direct contact and relative wear of the tire with the corresponding metal roller teeth.

Disclosure of Invention

The purpose of this application embodiment is to provide a crawler travel unit, can solve among the prior art crawler travel unit and cause the problem of tire tread wearing and tearing easily after using.

In order to solve the technical problem, the present application is implemented as follows:

the embodiment of the application provides a crawler belt unit, crawler belt unit installs on vehicle's tire, include:

a frame;

the receiving assembly is arranged on the frame and used for placing the tire;

a crawler assembly mounted on the frame for switching a traveling mode of the tire to a crawler traveling mode;

the first end of the wheel-track connecting structure is connected to the rack in a swinging mode, the second end of the wheel-track connecting structure is connected to the rim of the tire in a rotating mode, and the second end of the wheel-track connecting structure is detachably connected with the rim of the tire;

and the transmission assembly is at least partially arranged in the wheel-track connecting structure and is used for connecting the tire and the track assembly in a transmission way, the driving end of the transmission assembly is arranged on the rim of the tire, and the driven end of the transmission assembly is arranged on the track assembly.

Optionally, the wheel-track connecting structure comprises a first shell, a second shell and an adjusting assembly, wherein the first shell and the second shell are arranged at intervals and are adjustably connected through the adjusting assembly;

the first shell and the second shell enclose an accommodating cavity, and the transmission assembly is at least partially installed in the accommodating cavity.

Optionally, the first housing is rotatably connected to the frame, and the second housing is detachably connected to a rim of the tire;

the second shell is provided with a mounting disc, the mounting disc is rotatably connected with the second shell, and the mounting disc is fixedly connected to a rim of the tire;

and the driving end of the transmission assembly is fixedly connected to the mounting disc.

Optionally, the adjusting assembly comprises at least one adjusting member, a first end of the adjusting member is connected with the first housing, and a second end of the adjusting member is connected with the second housing.

Optionally, the adjusting assembly further includes at least one elastic member, the elastic member is disposed between the first housing and the second housing, and the adjusting member is adapted to the elastic member and corresponds to the elastic member one by one.

Optionally, the transmission assembly comprises a transmission member, the transmission member being a flexible structure;

the crawler belt walking device further comprises a tensioning mechanism, the tensioning mechanism is arranged in the accommodating cavity, and the tensioning mechanism abuts against the transmission piece;

in the process that the first shell and the second shell are adjusted through the adjusting assembly, the tensioning mechanism can enable the transmission piece to be kept in a tightened state.

Optionally, the transmission assembly comprises:

the driving part is fixedly connected with a rim of the tire and rotates along with a rotating shaft of the tire;

the driven piece is directly or indirectly connected with the track assembly and is used for driving the track assembly to walk;

and the first end of the transmission part is connected with the driving part, and the second end of the transmission part is connected with the driven part, so that the driving part drives the driven part to rotate.

Optionally, the driving member and the driven member are belt pulleys, and the transmission member is a belt; or,

the driving part and the driven part are chain wheels, and the transmission part is a chain.

Optionally, the receiving assembly includes two bearing rotating shafts arranged at intervals, and different positions of the outer circumferential surface of the tire are respectively abutted to the different bearing rotating shafts.

Optionally, the transmission assembly comprises:

the driving chain wheel is fixedly connected with a rim of the tire and rotates along with a rotating shaft of the tire;

the first driven chain wheel is arranged on the bearing rotating shaft and used for driving the bearing rotating shaft to synchronously rotate along with the tire;

the first end of the first chain is connected with the driving chain wheel, and the second end of the first chain is connected with the first driven chain wheel, so that the driving chain wheel drives the first driven chain wheel to rotate;

the second driven chain wheel is arranged on the crawler assembly and is used for driving the crawler assembly to walk;

and the first end of the second chain is connected with the first driven chain wheel, and the second end of the second chain is connected with the second driven chain wheel, so that the first driven chain wheel drives the second driven chain wheel to rotate.

Based on the above-mentioned embodiment of this application, accept the subassembly and can be used for placing the tire, the track subassembly is connected with accepting the subassembly, after the tire is placed on accepting the subassembly, can be through drive assembly with the track subassembly together. The driving end of the transmission assembly is arranged on the rim of the tire, and the driven end of the transmission assembly is arranged on the track, so that the traveling mode of the tire can be switched through the transmission assembly, the driving end of the transmission assembly is driven to rotate through the rim of the tire, and the driving end drives the driven end to rotate so as to drive the track assembly to work. The activity of crawler travel unit drives through the rim on the tire in above-mentioned structure, specifically can drive through vehicle's pivot, and the tread of tire can not regard as the power supply of driving crawler travel unit through the friction at this in-process, has reduced the wearing and tearing of tire tread, has improved the life of tire. The embodiment of the application can solve the problem that the tire tread of the crawler walking device is easily abraded after the crawler walking device is used in the prior art.

Drawings

FIG. 1 is a schematic view of a crawler attachment coupled to a tire according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural view of a wheel-track connecting structure in the embodiment of the present application;

FIG. 3 is a schematic structural view of an adjustment assembly including an elastic member in a wheel-track connecting structure according to an embodiment of the present invention;

FIG. 4 is a schematic view of an adjustment assembly including a double-threaded screw in a wheel-track connection arrangement according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural view of an adjusting assembly in a wheel-track connecting structure according to an embodiment of the present application, wherein the adjusting assembly includes a turn buckle;

FIG. 6 is a schematic structural view of the wheel-track connecting structure provided with the tensioning mechanism and matched with other parts of the crawler unit in the embodiment of the application;

FIG. 7 is a schematic view of the construction of a crawler having two followers according to an embodiment of the present application;

FIG. 8 is a schematic view of the two driven members of the crawler track assembly with the mounting plate in the embodiment of the present application;

FIG. 9 is a schematic view of the crawler track having one driven member according to the embodiment of the present application;

FIG. 10 is a schematic view of a crawler having a shifting structure that engages a drive sprocket according to an embodiment of the present application;

FIG. 11 is a schematic view of the crawler travel unit having a speed change structure in the embodiment of the present application, the speed change structure engaging with the driven sprocket;

FIG. 12 is a schematic structural view of the crawler attachment having a shifting structure and the shifting structure engaging the crawler assembly in the embodiment of the present application;

description of reference numerals:

10. a receiving assembly; 11. a first load-bearing rotating shaft; 12. a second load-bearing rotating shaft;

20. a track assembly;

30. a transmission assembly; 31. a drive sprocket; 32. a first driven sprocket; 33. a first chain; 34. a second driven sprocket; 35. a second chain; 36. mounting a disc;

40. a tire;

50. a wheel-track connecting structure; 51. a first housing; 52. a second housing; 53. an adjustment assembly; 531. an adjustment member; 532. an elastic member; 54. a tensioning mechanism;

60. a speed change structure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application are capable of operation in sequences other than those illustrated or described herein, and that the terms "first," "second," etc. are generally used in a generic sense and do not limit the number of terms, e.g., a first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The crawler belt device according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Referring to fig. 1 to 9, an embodiment of the present application provides a crawler belt mounted on a tire 40 of a vehicle, including:

a frame (not shown in the figure, the frame is a main supporting framework of the crawler walking device, and other components of the crawler walking device are directly or indirectly arranged on the frame);

a receiving assembly 10 mounted on the frame for placing the tire 40;

a track assembly 20 mounted on the frame for switching a running mode of the tire 40 to a track running mode;

a wheel-track connecting structure 50, a first end of which is connected to the frame in a swinging mode, a second end of which is connected to the rim of the tire 40 in a rotating mode, and a second end of the wheel-track connecting structure 50 is detachably connected with the rim of the tire 40;

a drive assembly 30 mounted at least partially within the wheel-track connection structure 50 for drivingly connecting the tire 40 to the track assembly 20, the drive end of the drive assembly 30 being mounted to the rim of the tire 40 and the driven end of the drive assembly 30 being mounted to the track assembly 20.

According to the above-mentioned embodiment of the present application, the receiving assembly 10 can be used for placing the tire 40, the track assembly 20 is connected with the receiving assembly 10, and after the tire 40 is placed on the receiving assembly 10, the tire 40 and the track assembly 20 can be connected together through the driving assembly 30. Because the driving end of the transmission assembly 30 is mounted on the rim of the tire 40, and the driven end of the transmission assembly 30 is mounted on the track, the switching of the traveling modes of the tire 40 can be realized through the transmission assembly 30, specifically, the driving end of the transmission assembly 30 is driven to rotate by the rim of the tire 40, and the driving end drives the driven end to rotate, so as to drive the track assembly 20 to work. The activity of crawler travel unit in above-mentioned structure is driven through the rim on tire 40, specifically can drive through vehicle's pivot, and the tread of tire 40 can not regard as the power supply of drive crawler travel unit through friction at this in-process, has reduced the wearing and tearing of tire 40 tread, has improved the life of tire 40. The wheel-track connecting structure 50 serves to stably connect the tire 40 and the crawler belt unit together. After the first end of the wheel-track connecting structure 50 is rotatably connected to the frame, the first end of the wheel-track connecting structure 50 can swing relative to the frame, so that the connection position of the second end of the wheel-track connecting structure 50 can be adjusted, and the length of the wheel-track connecting structure 50 can be adjusted, so that the wheel-track connecting structure 50 can be adapted to tires 40 of various types, and the universality of the crawler travel device is improved. After the second end of the wheel-track connecting structure 50 is detachably connected with the rim of the tire 40, the assembly and disassembly of the crawler traveling device can be realized through the disassembly and assembly of the wheel-track connecting structure 50 and the tire 40. Compared with the mode of ensuring the installation stability through the relative friction force and the weight of the automobile in the prior art, the tire 40 and the crawler traveling device can be more stably connected after the connection of the wheel-track connecting structure 50, and the accidental falling of the crawler traveling device is avoided. The embodiment of this application can solve among the prior art crawler attachment and cause the problem of tire 40 tread wearing and tearing easily after using to crawler attachment connects the relatively poor problem of stability among the prior art, have tire 40 and crawler attachment and connect more stable beneficial effect.

It should be noted that the tire 40 may be placed on the receiving assembly 10 by using an auxiliary tool of a jack, or a slope may be provided or manufactured so that the vehicle can travel on the slope and finally be placed on the receiving assembly 10.

It should be noted that the receiving assembly 10 is disposed on the frame, and the tire 40 can be specifically carried on the receiving assembly 10, and the stability of the tire 40 after connection is improved by the wheel-track connection structure 50.

Further, the bearing assembly 10 includes two bearing rotating shafts, the two bearing rotating shafts are specifically a first bearing rotating shaft 11 and a second bearing rotating shaft 12, the first bearing rotating shaft 11 and the second bearing rotating shaft 12 are arranged in parallel and at intervals, the first bearing rotating shaft 11 and the second bearing rotating shaft 12 are respectively abutted to different positions on the outer peripheral surface of the tire 40, the tire 40 is at least partially located between the first bearing rotating shaft 11 and the second bearing rotating shaft 12, and further the stability of the tire 40 after being placed is improved, after the wheel-track connecting structure 50 is connected, three-point locking can be realized through the first bearing rotating shaft 11, the second bearing rotating shaft 12 and the second end of the wheel-track connecting structure 50, and the stability of the connection of the tire 40 and the crawler unit is further improved. The first end of the wheel-track connecting structure 50 can be rotatably connected to the first bearing rotating shaft 11.

Referring to fig. 2 to 5, in some embodiments of the present application, the wheel-track connecting structure 50 includes a first housing 51, a second housing 52, and an adjusting assembly 53, wherein the first housing 51 is spaced apart from the second housing 52 and is adjustably connected by the adjusting assembly 53, and the adjusting assembly 53 is used for adjusting a distance between the first housing 51 and the second housing 52.

Based on the above-mentioned embodiment of this application, first casing 51 and second casing 52 are used for wrapping up the transmission assembly 30 described below, can protect transmission assembly 30, avoid the external world to cause the damage to transmission assembly 30, perhaps avoid pollutants such as external dust to influence the transmission of transmission assembly 30, adjusting part 53 is used for adjusting the interval between first casing 51 and the second casing 52, and then can change the interval between two tip of wheel-track connection structure 50 to realize the effect of the multiple model tire 40 of adaptation.

In some embodiments of the present application, the first housing 51 is rotatably connected to the frame, and the second housing 52 is detachably connected to the rim of the tire 40;

the second housing 52 is provided with a mounting plate 36, the mounting plate 36 is rotatably connected with the second housing 52, and the mounting plate 36 is fixedly connected with a rim of the tire 40.

Based on the above-mentioned embodiments of the present application, the first housing 51 is relatively disposed at the first end of the wheel-track connecting structure 50, after the first housing 51 is rotatably connected to the frame, the first end of the wheel-track connecting structure 50 can swing with respect to the frame, during the swinging process, the second end of the wheel-track connecting structure 50 can be adjusted to a position close to the rotating shaft of the tire 40, then the second housing 52 is detachably connected to the rim of the tire 40, the second housing 52 is specifically mounted on the rim through the mounting plate 36, the mounting plate 36 can rotate with respect to the second housing 52, the mounting plate 36 can serve as a connecting body of the driving end of the transmission assembly 30, and the transmission assembly 30 can transmit along with the rotation of the tire 40.

In some embodiments of the present application, the adjusting assembly 53 includes at least one adjusting member 531, a first end of the adjusting member 531 is connected to the first housing 51, and a second end of the adjusting member 531 is connected to the second housing 52.

Based on the above-described embodiment of the present application, the adjusting member 531 is used to adjust the spacing between the first housing 51 and the second housing 52. The adjusting member 531 is provided with at least one, so that the adjustment of the adjusting assembly 53 is more stable and reliable.

Referring to fig. 3, in some embodiments of the present application, the adjusting assembly 53 further includes at least one elastic member 532, the elastic member 532 is disposed between the first housing 51 and the second housing 52, and the adjusting members 531 are adapted to the elastic member 532 and correspond to each other.

According to the above-mentioned embodiment of the present application, the elastic member 532 is disposed to enable a certain reset function between the first housing 51 and the second housing 52, so that the first housing 51 and the second housing 52 can adjust the distance under the action of the adjusting assembly 53, and when the adjusting assembly 53 is not adjusted, the current distance is maintained by the elastic member 532. And, the setting of elastic component 532 can also carry out the interim regulation in the interval through external force, and when assembly error is less, can overcome the elastic force through the manpower and come rapid Assembly, improves assembly efficiency, is connected the second end and the tire 40 of wheel-track connection structure 50.

It should be noted that the elastic member 532 may be configured as a spring, a spring plate, a torsion spring, or the like. When the adjusting member 531 is a bolt, the elastic member 532 is preferably configured as a spring, and the spring is sleeved on the bolt, and two ends of the spring abut against the first housing 51 and the second housing 52 respectively.

Referring to fig. 2 to 5, in some embodiments of the present application, the adjusting member 531 is an adjusting screw, a first connecting portion is disposed on the first housing 51, the first connecting portion has a first connecting hole, a second connecting portion is disposed on the second housing 52, a second connecting hole is disposed on the second housing 52, and the adjusting screw is simultaneously inserted through the first connecting hole and the second connecting hole;

the adjusting screw adjusts the distance between the first shell 51 and the second shell 52 through a matched nut; or one of the first connecting hole and the second connecting hole is a threaded connecting hole, the other one is a round hole, and one end, close to the round hole, of the adjusting screw rod is provided with a limiting structure.

According to the above-mentioned embodiment of the present application, after the adjusting member 531 is provided as the adjusting screw, the screw thread on the adjusting screw can be used to adjust the distance between the first housing 51 and the second housing 52. Specifically, the adjusting screw can adjust the distance between the first shell 51 and the second shell 52 through the matched nut, at this time, both the first connecting hole and the second connecting hole can be set as round holes, and after the adjusting screw is arranged in the first connecting hole and the second connecting hole in a penetrating manner, the distance can be adjusted through the relative rotation of the nut and the adjusting screw;

one of the first connecting hole and the second connecting hole is a threaded connecting hole, the other one is a round hole, and one end of the adjusting screw close to the round hole is provided with a limiting structure, so that the first end of the adjusting screw is matched with the round hole, the adjusting screw rotates in situ at the first end in the adjusting process, and the distance between the first shell 51 and the second shell 52 is adjusted through threaded connection of the second end and the threaded hole.

It should be noted that, the adjusting member 531 may also be configured as a stud, the thread directions of the two ends are opposite, the first connecting hole and the second connecting hole are both threaded holes, when the stud rotates along the first direction, the first casing 51 and the second casing 52 are close to each other, and when the stud rotates along the second direction, the first casing 51 and the second casing 52 are far away from each other.

In some embodiments of the present application, the adjusting member 531 is a turn buckle, two ends of the turn buckle are respectively connected to the first housing 51 and the second housing 52, and an adjusting knob in the middle of the turn buckle is rotated to enable the first housing 51 and the second housing 52 to approach or separate from each other.

According to the above-described embodiment of the present application, the arrangement of the turn buckle can be rotated by adjusting the middle portion, so that the distance between the first housing 51 and the second housing 52 can be adjusted. Specifically, the turnbuckle includes first connecting portion, second connecting portion and the adjustment part of setting in the middle, can make first connecting portion and second connecting portion be close to each other or keep away from each other through rotatory adjustment part, the one end that first connecting portion deviates from the adjustment part is connected with first casing 51, the one end that the second connecting portion deviates from the adjustment part is connected with second casing 52, and then can be through all being close to each other or keeping away from through first connecting portion and second connecting portion, drive being close to or keeping away from of first casing 51 and second casing 52, realize the effect of adjusting first casing 51 and second casing 52 interval.

Referring to fig. 6 to 9, in some embodiments of the present application, the crawler belt further includes a driving assembly 30, a driving end of the driving assembly 30 is mounted on a rim of the tire 40 through the wheel-track connecting structure 50, and a driven end of the driving assembly 30 is mounted on the crawler belt assembly 20 connected to the frame;

the first housing 51 and the second housing 52 enclose a receiving cavity, and the transmission assembly 30 is at least partially mounted in the receiving cavity.

Based on the above-mentioned embodiment of this application, drive assembly 30 is used for with tire 40 with crawler attachment transmission connects, specifically, the drive end of drive assembly 30 is installed on the rim of tire 40, and the driven end of drive assembly 30 is installed on the track, just so can realize the switching of tire 40 walking mode through drive assembly 30, can drive the drive end rotation of drive assembly 30 through the rim of tire 40, and the drive end is through the rotation that drives the driven end again, and then drives crawler assembly 20's work. The activity of crawler belt running gear in above-mentioned structure is through the rim drive on the tire 40, specifically can drive through vehicle's pivot, and the tread of tire 40 can not regard as the power supply of drive crawler belt running gear through the friction at this in-process, has reduced the wearing and tearing of tire 40 tread, has improved the life of tire 40. After the transmission assembly 30 is at least partially installed in the accommodating cavity, the transmission assembly 30 can be partially installed through the first shell 51 and the second shell 52, and then the transmission assembly 30 can be protected, so that the transmission assembly 30 is prevented from being damaged by the outside, or the transmission of the transmission assembly 30 is prevented from being influenced by pollutants such as external dust.

In some embodiments of the present application, a mounting plate 36 is disposed on the second housing 52, the mounting plate 36 is rotatably connected to the second housing 52, and the mounting plate 36 is fixedly connected to a rim of the tire 40;

the driving end of the transmission assembly 30 is fixedly connected to the mounting plate 36.

Based on the above-mentioned embodiments of the present application, the mounting plate 36 can rotate relative to the second housing 52, and the mounting plate 36 can be used as a connecting body for the driving end of the transmission assembly 30, so that the driving end of the transmission assembly 30 can be driven along with the rotation of the tire 40.

Further, in the embodiment of the present application, the mounting plate 36 is a flange plate, and the mounting plate 36 is mounted on the rim through a fixing member.

Based on the above-mentioned embodiment of the present application, after the mounting disc 36 is a flange, a plurality of mounting holes may be provided, the number of the mounting holes may be the same as the number of the bolts on the rim, and the stability of the connection of the driving member may be further improved by the connection of the fixing members such as the bolts.

In some embodiments of the present application, the transmission assembly 30 comprises a transmission member, which is a flexible structure;

with reference to fig. 6, the crawler belt device further comprises a tensioning mechanism 54, the tensioning mechanism 54 being arranged inside the housing cavity, the tensioning mechanism 54 abutting on the transmission member;

the tensioning mechanism 54 can keep the transmission member in a tightened state during the adjustment of the first housing 51 and the second housing 52 by the adjusting assembly 53.

Based on the above-mentioned embodiment of the present application, the transmission member is configured to transmit the motion of the driving end to the driven end in the transmission assembly 30, and the transmission member with a flexible structure can make the transmission more flexible. The tensioning mechanism 54 is arranged to enable the tensioning mechanism 54 to keep the transmission member in a tensioned state in the process of adjusting the first housing 51 and the second housing 52 through the adjusting assembly 53, so as to ensure that the transmission assembly 30 keeps a stable transmission effect all the time before and after the adjusting assembly 53 adjusts.

At least one tension mechanism 54 may be provided, the tension mechanism 54 may be mounted on the first housing 51 and/or the second housing 52, and for example, the tension mechanism 54 may be mounted on the first housing 51, and the tension mechanism 54 includes a mounting portion connected to the first housing 51, an elastic connecting portion connected to the mounting portion, and a tension wheel provided on the elastic connecting portion. The take-up pulley can be along with the activity of elastic connection portion, and the take-up pulley can set up to the smooth cylindric structure of outward appearance, also can set up the tensioning groove with the belt adaptation on the take-up pulley as required, or set up in the sprocket that the chain looks adaptation, specifically carry out the adaptability according to drive assembly 30's similarity and change.

Referring to fig. 7 to 9, in the embodiment of the present application, the transmission assembly 30 includes:

the driving part is fixedly connected with a rim of the tire 40 and rotates along with a rotating shaft of the tire 40;

a follower, directly or indirectly connected to the track assembly 20, for moving the track assembly 20;

According to the above-mentioned embodiments of the present application, the driving member is used as the driving end of the transmission assembly 30, and can rotate along with the rotating shaft of the tire 40, and the driven member can directly or indirectly drive the track assembly 20 to move, and the driving member and the driven member are driven by the transmission member. Through the cooperation of the driving member, the driven member and the transmission member, the rotation of the tire 40 can drive the movement of the crawler belt assembly 20, thereby realizing the effect of switching the traveling mode of the tire 40 to the crawler belt traveling mode.

It should be noted that more than one driven member may be provided, and the driven member at the end of the drive may directly drive track assembly 20. The transmission ratio of the driving part and the driven part and the transmission ratio between two adjacent driven parts are selected according to actual needs, and a certain speed change structure can be arranged as necessary to realize different driving speeds of the crawler belt assembly 20.

In the embodiment of the application, the driving part and the driven part are belt pulleys, and the transmission part is a belt; or,

Based on the above embodiments of the present application, the above embodiments exemplify two embodiments of the transmission assembly 30, one of which is that the track assembly 20 driven by the belt transmission is moved to realize effective driving in complicated road sections such as deep snow or muddy road sections; and secondly, the crawler assembly 20 is driven to move in a chain transmission mode, so that effective running under complex road sections such as deep snow or muddy road sections is realized. The gear set can utilize the matching structure of a plurality of gears, the gears in the gear set can be the same gear, and can also be the matching of a plurality of gears, specifically can be the matching of a plurality of external gears, or the structure of a planetary gear train and the like.

a driving sprocket 31 fixedly connected with the rim of the tire 40, wherein the driving sprocket 31 rotates along with the rotating shaft of the tire 40;

a driven sprocket connected to the track assembly 20 for driving the track assembly 20 to travel;

and a chain, a first end of which is connected with the driving sprocket 31, and a second end of which is connected with the driven sprocket, so that the driving sprocket 31 drives the driven sprocket to rotate.

Based on the above-mentioned embodiment of this application, drive sprocket 31 can be in the same place with the rim fixed connection of tire 40, just so can make the rotation of tire 40 drive sprocket 31 and rotate, under the connection of chain, can make drive sprocket 31 can drive driven sprocket's rotation, because driven sprocket connects on crawler assembly 20 and can drive crawler assembly 20 and walk, can switch into the walking mode of tire 40 like this crawler walking mode, and then realize effectively traveling under the complicated highway sections such as dark snow or muddy highway section.

In the embodiment of the present application, the receiving assembly 10 includes two bearing rotating shafts disposed at an interval, and different positions of the outer peripheral surface of the tire 40 respectively abut against different bearing rotating shafts.

Based on the above-mentioned embodiment of the present application, the setting of the bearing rotating shaft can reduce the relative friction between the tire 40 and the bearing rotating shaft by matching the rotation of the tire 40 with the rotation of the rotation, reduce the wear rate of the outer tread of the tire 40, and improve the service life of the tire 40.

It should be noted that the two bearing rotating shafts include a first bearing rotating shaft 11 and a second bearing rotating shaft 12, the first bearing rotating shaft 11 and the second bearing rotating shaft 12 are arranged in parallel and at intervals, the first bearing rotating shaft 11 and the second bearing rotating shaft 12 are respectively abutted to different positions on the outer peripheral surface of the tire 40, at least part of the tire 40 is located between the first bearing rotating shaft 11 and the second bearing rotating shaft 12, and then the stability of the tire 40 after being placed is improved, after the transmission assembly 30 is connected, three-point locking can be realized through the first bearing rotating shaft 11, the second bearing rotating shaft 12 and the transmission assembly 30, and the stability of the connection of the tire 40 and the crawler travel device is improved.

Referring to fig. 7 and 8, in the embodiment of the present application, the transmission assembly 30 includes:

the first driven chain wheel 32 is arranged on the bearing rotating shaft and is used for driving the bearing rotating shaft to synchronously rotate along with the tire 40;

a first chain 33, having a first end connected to the driving sprocket 31 and a second end connected to the first driven sprocket 32, so that the driving sprocket 31 drives the first driven sprocket 32 to rotate;

a second driven sprocket mounted on the track assembly 20 for driving the track assembly 20 to travel;

and a second chain 35 having a first end connected to the first driven sprocket 32 and a second end connected to the second driven sprocket 34, so that the first driven sprocket 32 drives the second driven sprocket 34 to rotate.

Based on the above-mentioned embodiments of the present application, the driving sprocket 31 can be fixedly connected to the rim of the tire 40, such that the rotation of the tire 40 can drive the driving sprocket 31 to rotate, and under the connection of the first chain 33, the driving sprocket 31 can drive the first driven sprocket 32 to rotate, and because the first driven sprocket 32 is installed on the bearing rotating shaft, the corresponding bearing rotating shaft can be driven to rotate by the first driven sprocket 32 (as shown in fig. 7 and 8, the first driven sprocket 32 is connected to the first bearing rotating shaft 11, but not limited to this connection), such that the bearing rotating shaft and the tire 40 can rotate synchronously, and the relative friction between the tread and the bearing rotating shaft of the tire 40 is further reduced. Under the connection of second chain 35, can make first driven sprocket 32 can drive the rotation of second driven sprocket 34, because second driven sprocket 34 is connected on crawler assembly 20 and can drive crawler assembly 20 walking, can switch the walking mode of tire 40 into crawler walking mode like this, and then realize effectively traveling under the complicated highway sections such as deep snow or muddy highway section.

It should be noted that the synchronous rotation of the bearing rotating shaft and the tire 40 does not mean that the rotating speeds of the bearing rotating shaft and the rotating center of the tire 40 are the same, but means that the bearing rotating shaft and the outer peripheral surface of the tire 40 can be synchronized without generating relative friction, or the generated relative friction is lower than a preset value.

In the present embodiment, the crawler belt device further includes a speed changing structure 60, the speed changing structure 60 being mounted on at least one of the crawler belt assembly 20 and the transmission assembly 30 for directly or indirectly adjusting a transmission ratio between the tire 40 and the crawler belt assembly 20.

Specifically, the speed changing structure 60 may be provided on the track assembly 20, and may be installed at a connection position of the track assembly 20 and the driving assembly 30, to change a traveling speed of the nearest track assembly 20 by changing the driving ratio of the driving assembly 30 and the track assembly 20; the speed changing structure 60 can also be mounted on the transmission assembly 30, specifically, can be mounted on the driving member or the driven member of the transmission assembly 30, or can be mounted on both the driving member and the driven member with the speed changing structure 60, for example, the speed changing structure 60 can be mounted on the driving sprocket 31, and the driving sprocket 31 and the rim of the tire 40 are indirectly connected through the speed changing structure 60, so that the transmission ratio between the tire 40 and the driving sprocket 31 can be adjusted and changed, and further, the adjustment of the transmission ratio between the track assembly 20 and the tire 40 can be realized. The shifting structure 60 can also be coupled to the first sprocket or the second sprocket.

It should be noted that the arrangement of the speed changing structure 60 is involved in the transmission, so as to adjust the transmission ratio. An adjusting button can be arranged on the speed changing structure 60 according to requirements, and the speed changing ratio of the speed changing structure 60 can be changed by pressing the button; or a wireless communication structure can be arranged, and communication control can be carried out in a remote control mode. Of course, a wired remote control may be provided to control the shifting mechanism 60 as desired.

The speed changing structure 60 may be a general speed reducer, a planetary speed reducer, a speed changing gear set, a speed changing sprocket set, or the like, and may be selected as needed.

In the embodiment of the present application, the central axis of the driving member is disposed in the extending direction of the rotating shaft of the tire 40.

Based on the above-mentioned embodiment of the present application, after the central axis of the driving member is arranged in the extending direction of the rotating shaft of the tire 40, the rotation of the driving member can be rotated along with the rotation of the tire 40, and the eccentric rotation is not generated, thereby ensuring the stability of transmission.

In the embodiment of the present application, the transmission assembly 30 further includes a mounting plate 36, the mounting plate 36 is fixedly connected to the rim, and the driving member is mounted on the mounting plate 36.

Based on the above-mentioned embodiment of this application, the setting of mounting disc 36 can make the connection of initiative piece and rim more reliable and stable, can fix mounting disc 36 on the rim through corresponding mounting.

In the embodiment of the present application, the mounting plate 36 is a flange plate, and the mounting plate 36 is mounted on the rim by a fixing member.

It should be noted that the crawler belt device in the embodiment of the present application is used in conjunction with a vehicle with tires, and the corresponding vehicle includes a main body and the crawler belt device as above; the main body is provided with a tire 40, and the crawler belt unit is detachably connected to the tire 40.

According to the embodiments of the present invention, particularly, the vehicle with the crawler travel device can effectively travel on a complicated road such as a deep snow or muddy road, and is less likely to cause wear of the tread of the tire 40.

It should be noted that the vehicles of the present application include, but are not limited to, transportation vehicles, special-purpose vehicles, amphibious vehicles, airplanes, etc. Wherein, the transport vehicles comprise passenger vehicles, passenger cars, trucks, traction vehicles and the like; the special purpose vehicles include recreational vehicles, racing vehicles, special work vehicles, and the like. The crawler belt walking device with the adaptive size can be selected according to different vehicles.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions recited, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. Crawler belt unit, characterized in that it is mounted on a tyre (40) of a vehicle, comprising:

a frame;

a receiving assembly (10) mounted on the frame; the bearing assembly (10) comprises two bearing rotating shafts which are arranged at intervals, and different positions of the outer peripheral surface of the tire (40) are respectively abutted against the different bearing rotating shafts;

a track assembly (20) mounted on the frame for switching a travel mode of the tire (40) to a track travel mode;

a drive assembly (30) for drivingly connecting the tire (40) and the track assembly (20), the drive end of the drive assembly (30) being mounted on the rim of the tire (40) and the driven end of the drive assembly (30) being mounted on the track assembly (20);

a wheel-track connecting structure (50), a first end of the wheel-track connecting structure is connected to the frame in a swinging mode, a second end of the wheel-track connecting structure is connected to a rim of the tire (40) in a rotating mode, the second end of the wheel-track connecting structure (50) is detachably connected with the rim of the tire (40), and the transmission assembly (30) is at least partially installed in the wheel-track connecting structure (50).

2. Crawler belt device according to claim 1, characterized in that the wheel-track connection structure (50) comprises a first housing (51), a second housing (52) and an adjustment assembly (53), the first housing (51) being arranged spaced apart from the second housing (52) and being adjustably connected by the adjustment assembly (53);

the first housing (51) and the second housing (52) enclose a containing cavity, and the transmission assembly (30) is at least partially installed in the containing cavity.

3. Crawler belt device according to claim 2, characterized in that said first housing (51) is rotatably connected to said frame, said second housing (52) being removably connected to the rim of said tyre (40);

a mounting disc (36) is arranged on the second shell (52), the mounting disc (36) is rotatably connected with the second shell (52), and the mounting disc (36) is fixedly connected to a rim of the tire (40);

the driving end of the transmission assembly (30) is fixedly connected to the mounting disc (36).

4. Crawler belt according to claim 2, characterized in that the adjusting assembly (53) comprises at least one adjusting piece (531), the first end of the adjusting piece (531) being connected with the first housing (51) and the second end of the adjusting piece (531) being connected with the second housing (52).

5. Crawler belt according to claim 4, characterized in that said adjustment assembly (53) further comprises at least one elastic member (532), said elastic member (532) being arranged between said first housing (51) and said second housing (52), said adjustment members (531) being adapted to said elastic member (532) in a one-to-one correspondence.

6. Crawler belt device according to claim 2, wherein the transmission assembly (30) comprises a transmission, the transmission being of flexible construction;

the crawler belt walking device further comprises a tensioning mechanism (54), the tensioning mechanism (54) is arranged in the accommodating cavity, and the tensioning mechanism (54) abuts against the transmission piece;

the tensioning mechanism (54) can keep the transmission piece in a tensioned state during the adjustment of the first shell (51) and the second shell (52) through the adjusting component (53).

7. Crawler belt device according to claim 1, wherein said transmission assembly (30) comprises:

the driving part is fixedly connected with a rim of the tire (40) and rotates along with a rotating shaft of the tire (40);

a driven member directly or indirectly connected with the track assembly (20) and used for driving the track assembly (20) to walk;

8. A crawler belt according to claim 7, wherein said driving member and said driven member are pulleys, and said transmission member is a belt; or,

9. Crawler belt according to claim 1, characterized in that it further comprises a speed change structure (60), said speed change structure (60) being mounted on at least one of said track assembly (20) and said transmission assembly (30) for directly or indirectly adjusting the transmission ratio between said tyre (40) and said track assembly (20).

10. Crawler belt device according to claim 9, wherein said transmission assembly (30) comprises:

the driving chain wheel (31) is fixedly connected with the rim of the tire (40), and the driving chain wheel (31) rotates along with the rotating shaft of the tire (40);

the first driven chain wheel (32) is arranged on the bearing rotating shaft and is used for driving the bearing rotating shaft to synchronously rotate along with the tire (40);

the first chain (33) is connected with the driving chain wheel (31) at the first end and connected with the first driven chain wheel (32) at the second end, so that the driving chain wheel (31) drives the first driven chain wheel (32) to rotate;

a second driven sprocket (34) mounted on the track assembly (20) for propelling the track assembly (20);

and the first end of the second chain (35) is connected with the first driven chain wheel (32), and the second end of the second chain is connected with the second driven chain wheel (34), so that the first driven chain wheel (32) drives the second driven chain wheel (34) to rotate.