CN113200097B - Obstacle-crossing crawler belt capable of adapting to different heights and excavator - Google Patents
Obstacle-crossing crawler belt capable of adapting to different heights and excavator Download PDFInfo
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- CN113200097B CN113200097B CN202110673553.3A CN202110673553A CN113200097B CN 113200097 B CN113200097 B CN 113200097B CN 202110673553 A CN202110673553 A CN 202110673553A CN 113200097 B CN113200097 B CN 113200097B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/084—Endless-track units or carriages mounted separably, adjustably or extensibly on vehicles, e.g. portable track units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
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Abstract
The invention discloses an obstacle crossing crawler and an excavator capable of adapting to different heights, which solve the problem of poor obstacle crossing capability of the existing crawler structure in the prior art, have the beneficial effect of effectively crossing obstacles or moving, and have the following specific scheme: an obstacle-crossing crawler belt capable of adapting to different heights comprises a flat-ground crawler belt and a rotary crawler belt, wherein the flat-ground crawler belt comprises flat-ground crawler belt plates supported by a flat-ground crawler driving wheel and a flat-ground crawler driven wheel, the flat-ground crawler driven wheel and a rotary crawler main wheel are coaxially mounted, the rotary crawler main wheel can drive the rotary crawler belt to rotate relative to the flat-ground crawler belt, the rotary crawler belt comprises a rotary crawler belt supporting plate, the rotary crawler belt supporting plate supports the rotary crawler belt main wheel and the rotary crawler belt driven wheel, the rotary crawler belt main wheel and the rotary crawler belt driven wheel support a plurality of rotary crawler belt plates, and two adjacent rotary crawler belt plates are connected through grooves; a telescopic mechanism is arranged between the main wheel of the rotating crawler and the driven wheel of the rotating crawler.
Description
Technical Field
The invention relates to the field of excavators, in particular to an obstacle crossing crawler belt capable of adapting to different heights and an excavator.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
When current excavator operation, to the concrete ground, excavate ground and cause ground concrete to break, make the track incomplete contact ground to thereby the problem that the obstacle leads to moving the difficulty appears advancing the in-process, this process needs the machine itself to carry out long-time adjustment, or manual adjustment, and the process consumes a large amount of time, and the mistake is wrong.
The inventor finds that the prior crawler structure can only travel on flat ground, so that the rider is overwhelmed when the crawler is in poor contact with the ground and is difficult to move due to insufficient friction force when facing obstacles or devices, and the rider still catches an elbow when facing complex road conditions such as obstacles with different heights and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the obstacle crossing crawler belt which can adapt to different heights, not only can realize obstacle crossing, but also can effectively adjust and adjust the distance between the crawler belt plates of the rotating crawler belt, and is suitable for obstacle crossing adjustment of different heights.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the obstacle crossing crawler belt capable of adapting to different heights comprises a flat-ground crawler belt and a rotary crawler belt, wherein the flat-ground crawler belt comprises a flat-ground crawler belt track plate supported by a flat-ground crawler belt driving wheel and a flat-ground crawler belt driven wheel, the flat-ground crawler belt driven wheel and a rotary crawler belt main wheel are coaxially mounted, and the rotary crawler belt main wheel can drive the rotary crawler belt to rotate relative to the flat-ground crawler belt, so that the rotary crawler belt can exceed the bottom side surface of the flat-ground crawler belt after rotating for a set angle;
the rotating crawler comprises a rotating crawler supporting plate, the rotating crawler supporting plate supports a rotating crawler main wheel and a rotating crawler driven wheel, the rotating crawler main wheel and the rotating crawler driven wheel support a plurality of rotating crawler track plates, and two adjacent rotating crawler track plates are connected through a groove;
a telescopic mechanism is arranged between the main wheel and the driven wheel of the rotating crawler belt so as to adjust the whole length of the rotating crawler belt.
According to the obstacle crossing crawler belt, the flat ground crawler belt can realize common flat ground walking and conventional obstacle crossing, when the size of an obstacle is large, the main wheel of the rotating crawler belt can rotate to drive the whole rotating crawler belt to rotate by a set angle, and when the rotating crawler belt can be vertically arranged, the rotating crawler belt can support the flat ground crawler belt, so that the obstacle crossing crawler belt can cross obstacles conveniently; through the arrangement of the telescopic mechanism in the rotating crawler, the distance between the main wheel of the rotating crawler and the driven wheel of the rotating crawler is adjusted, so that the integral length of the rotating crawler is increased or reduced, an effective wheel track is selected, the device can be suitable for obstacles with different heights, and obstacle crossing is realized.
According to the obstacle crossing crawler belt capable of adapting to different heights, the minimum distance between the main wheel and the driven wheel of the rotating crawler belt is larger than the distance between the central shaft of the driven wheel of the flat ground crawler belt and the bottom side surface of the flat ground crawler belt, so that when the rotating crawler belt has a set angle relative to the flat ground crawler belt, the rotating crawler belt can be ensured to be in contact with the ground, and the supporting effect on the flat ground crawler belt is achieved;
in order to function as an auxiliary supporting leg, the diameter of the main wheel of the rotating crawler belt is larger than that of the driven wheel of the rotating crawler belt.
According to the obstacle crossing crawler belt capable of adapting to different heights, the rotating crawler belt main wheel and the rotating crawler belt driven wheel are respectively provided with the U-shaped grooves, the two U-shaped grooves are arranged oppositely, the inner side of the rotating crawler belt supporting plate is provided with the protrusions, and the protrusions can be clamped into the U-shaped grooves to limit the moving paths of the rotating crawler belt main wheel and the rotating crawler belt driven wheel, so that the wheel distance between the rotating crawler belt main wheel and the rotating crawler belt driven wheel is effectively guaranteed under the driving of the telescopic mechanism.
An obstacle-surmounting track capable of being adapted to different heights as described above, wherein the U-shaped groove is provided around the center of the main wheel of the rotating track or the driven wheel of the rotating track in consideration of the reasonableness of the structural arrangement;
the arch is a plurality of cylinder archs, is equipped with a plurality ofly with each U-shaped groove matched with cylinder arch, and rotatory track backup pad inboard can set up the circular slot, and a plurality of cylinder archs on same U-shaped groove week side can be located the both sides of circular slot.
In order to support the flat-ground crawler, the flat-ground crawler further comprises a flat-ground crawler fixing shell, wherein one side of the flat-ground crawler fixing shell is provided with an extending arm to fix a flat-ground crawler driving wheel, and the other side of the flat-ground crawler fixing shell is provided with a driven wheel extending arm to support a flat-ground crawler driven wheel, so that the flat-ground crawler driving wheel and the flat-ground crawler driven wheel are effectively and stably arranged;
the flat ground track fixing shell supports a first roller and a second roller, the first roller and the second roller are arranged diagonally, and the first roller and the second roller are respectively tangent to the inner sides of the flat ground track crawler boards on two sides of the flat ground track.
According to the obstacle crossing crawler capable of adapting to different heights, the rotating crawler main wheel and the rotating crawler driven wheel are respectively provided with the rotating fixing part, the rotating fixing part comprises the sliding block arranged on the rotating crawler main wheel or the rotating crawler driven wheel, the sliding block is connected with the rotating crawler track plate adjacent to the sliding block through the fixed shaft, and through the arrangement of the rotating fixing part, the rotating crawler main wheel, the rotating crawler driven wheel and the rotating crawler track plate can be ensured to be in full contact, and the rotating crawler main wheel and the rotating crawler driven wheel can be prevented from being separated.
The obstacle crossing crawler capable of adapting to different heights is characterized in that the rotating crawler support plates are arranged on two sides of the rotating crawler, the two rotating crawler support plates support a third roller through a support shaft, and the third roller is arranged in a tangent mode with the inner side of the rotating crawler track plate;
the two sides of the rotary crawler track plates are respectively provided with a long-strip open slot, the connecting shaft penetrates through the long-strip open slots of the two adjacent rotary crawler track plates, and the long-strip open slots are arranged, so that the rotary crawler track plates are connected through slots, the distance between the two adjacent rotary crawler track plates is effectively adjusted, the distance between the two wheels is adjusted under the action of the telescopic mechanism, and the integral length of the rotary crawler track is increased or reduced.
According to the obstacle crossing crawler belt capable of adapting to different heights, the sliding block is connected with one fixed shaft, the rotating crawler belt shoe is connected with the other fixed shaft, the two fixed shafts are connected through the elastic piece, the rotating crawler main wheel and the rotating crawler belt driven wheel are fully guaranteed to be fully contacted with the rotating crawler belt shoe, and the situation of separation is prevented.
The obstacle crossing crawler belt capable of adapting to different heights is characterized in that the fixed end of the telescopic mechanism is fixed with the rotating crawler belt driven wheel, and the telescopic end of the telescopic mechanism is connected with the rotating crawler belt main wheel;
the driven wheel of the flat ground crawler is supported by a driven shaft, the driven shaft penetrates through the main wheel of the rotating crawler, and the driven wheel is connected with the rotating mechanism so as to drive the rotating crawler to rotate.
In a second aspect, the invention further provides an excavator, and the obstacle crossing crawler belt capable of adapting to different heights is adopted;
the main shell is connected with a driving wheel of the flat crawler through a driving shaft.
The beneficial effects of the invention are as follows:
1) according to the invention, the rotating crawler can rotate through the arrangement of the rotating crawler, the rotating crawler cannot interfere with the movement of the flat-ground crawler under the conventional condition, the rotating crawler can rotate for a set angle and is supported with the ground when encountering a large obstacle, and the flat-ground crawler can smoothly cross the obstacle under the supporting action of the rotating crawler; through the setting of telescopic machanism for rotatory track main wheel selects effectual wheel base with rotatory track from the adjustment of wheel interval, thereby increases or reduces the holistic length of rotatory track, with the barrier of adaptation co-altitude.
2) According to the invention, the two rotating crawler track shoes are connected by the connecting positions of the two adjacent rotating crawler track shoes in the rotating crawler track being groove-connected and penetrating through the connecting shaft, so that the adjustment of the moving distance between the two rotating crawler track shoes is ensured, and the main wheel of the rotating crawler track and the driven wheel of the rotating crawler track are ensured to provide telescopic power by the arrangement of the telescopic mechanism.
3) In order to ensure the stability of the rotating crawler, the main rotating wheel and the driven rotating wheel of the rotating crawler are respectively provided with a U-shaped groove, and the inner side of the rotating crawler supporting plate is provided with a bulge which can be clamped into the U-shaped groove, so that the rotating crawler is effectively stabilized, and the change of the distance between the main rotating wheel and the driven rotating crawler is not influenced after the telescopic mechanism is adjusted to a set position.
4) In order to ensure the stability, the rotating crawler belt is always in contact with the rotating crawler belt main wheel and the rotating crawler belt driven wheel, the rotating crawler belt main wheel and the rotating crawler belt driven wheel are respectively provided with a sliding block and are connected through the fixed shaft, the rotating crawler belt main wheel, the rotating crawler belt driven wheel and the rotating crawler belt track plate are ensured to be in full contact, and the separation is effectively prevented.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a generally schematic view of an obstacle detouring track capable of accommodating different heights in accordance with one or more embodiments of the present disclosure;
FIG. 2 is a schematic view of a flatland track drive wheel in an obstacle detouring track capable of accommodating different heights in accordance with one or more embodiments of the present disclosure;
FIG. 3 is a schematic view of a flat ground track follower configuration in an obstacle detouring track capable of accommodating different heights in accordance with one or more embodiments of the present disclosure;
FIG. 4 is a schematic view of a flat ground track retaining shell in an obstacle detouring track capable of accommodating different heights according to one or more embodiments of the invention;
FIG. 5 is a schematic view of a rotating track in an obstacle-surmounting track capable of accommodating different heights in accordance with one or more embodiments of the invention;
FIG. 6 is a schematic view of a rotating track and idler wheel arrangement of an obstacle detouring track capable of accommodating different heights in accordance with one or more embodiments of the present disclosure;
FIG. 7 is a schematic view of a rotating track main wheel of an obstacle detouring track capable of accommodating different heights in accordance with one or more embodiments of the present disclosure;
FIG. 8 is a schematic view of a rotating track support plate in an obstacle detouring track capable of accommodating different heights in accordance with one or more embodiments of the present invention;
FIG. 9 is a top view of an excavator portion structure in accordance with one or more embodiments of the present invention;
FIG. 10 is an internal schematic view of a portion of an excavator in accordance with one or more embodiments of the present disclosure;
in the figure, 1 is a flat ground crawler belt, 2 is a rotating crawler belt, 3 is a flat ground crawler belt driving wheel, 4 is a flat ground crawler belt driven wheel, 5 is a flat ground crawler belt shoe, 6 is a first roller, 7 is a flat ground crawler belt A-shaped support, 8 is a square support, 9 is a bolt, 10 is a flat ground crawler belt fixing shell, 11 is a first round hole groove, 12 is a tooth chamfer, 13 is a key groove hole, 14 is a second round hole groove, 15 is a driven wheel extension shaft, 16 is a second bolt hole, and 17 is a second round hole protrusion;
18 is an A-shaped support extension shaft, 19 is a first circular hole protrusion, 20 is a first threaded hole, 21 is a rotary track main wheel, 22 is a rotary track driven wheel, 23 is a rotary track creeper tread, 24 is a circular track tread groove, 25 is a connecting shaft, 26 is a fixed arm, 27 is a hydraulic telescopic arm, 28 is a third roller, 29 is a first sliding block, 30 is a first fixed shaft, 31 is a first spring, 32 is a second fixed shaft, 33 is a second sliding block, 34 is a third fixed shaft, 35 is a second spring, 36 is a fourth fixed shaft, 37 is a rotary track support plate, 38 is a driven wheel U-shaped groove, 39 is a driven wheel hole, 40 is a driving wheel U-shaped groove, 41 is a driving wheel hole, 42 is a first cylindrical protrusion, 43 is a second cylindrical protrusion, 44 is a circular groove, and 45 is a support shaft;
46 is the second roller, 47 is the main casing, 48 is the driving shaft, 49 is the driven shaft, 50 is the first conical gear, 51 is the second conical gear, 52 is the motor.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, and for example, the terms "mounted," "connected," and "fixed" may be fixed, detachable, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.
As described in the background art, the prior art has the problem that the obstacle crossing capability of the excavator is poor, and in order to solve the technical problem, the invention provides the obstacle crossing crawler belt which can adapt to different heights.
Example one
In a typical embodiment of the present invention, referring to fig. 1, an obstacle crossing crawler capable of adapting to different heights comprises a flat crawler 1 and a rotating crawler 2, wherein the flat crawler 1 is rotated by a flat crawler driving wheel 3 to drive a crawler connected by flat crawler track plates 5 to rotate, a flat crawler driven wheel 4 plays a supporting role, and a flat crawler fixing shell 10 is provided with a projecting arm at one side of the driving wheel to fix the flat crawler driving wheel and a flat crawler driven wheel at the other side.
The rotating track main wheel and the rotating track driven wheel are arranged on the ground, the minimum distance between the center shafts of the rotating track main wheel and the rotating track driven wheel is larger than the distance between the center shaft of the flat ground track driven wheel, namely the center shaft of the transmission shaft and the bottom side surface of the flat ground track, the rotating track is arranged at a set angle in a rotating mode, if the rotating track inclines relative to the plane where the center shaft of the flat ground track driving wheel and the center shaft of the flat ground track driven wheel are located, the length of the rotating track in the vertical direction exceeds the bottom side surface of the flat ground track when the rotating track is vertical to the rotating track and the ground are in contact, the whole position of the obstacle crossing track is lifted, and therefore the obstacle crossing is achieved.
In order to ensure the fixing of the obstacle-crossing crawler, as shown in fig. 4, a projecting arm is arranged at one side of the flat ground crawler fixing shell 10, and a first circular hole protrusion is arranged at one end of the projecting arm far away from the flat ground crawler fixing shell and is inserted into a first circular hole groove 11 of the flat ground crawler driving wheel 3 through a first circular hole protrusion 19; the other side of the flat ground track fixing shell 10 is provided with a driven wheel extending arm, one side of the driven wheel extending arm, which is far away from the flat ground track fixing shell 10, is U-shaped, so that the driven wheel can be clamped conveniently, the inner side of the U-shaped end of the driven wheel extending arm is provided with a second round hole protrusion 17, and the driven wheel is inserted into a second round hole groove 14 of the flat ground track driven wheel 4 through the second round hole protrusion 17.
Further, in order to ensure the stability of the flat ground track in operation, the A-shaped supports 7 are fixed on a 10 flat ground track fixing shell 10, at least one group of A-shaped supports 7 is arranged, A-shaped support protruding shafts 18 are arranged on the inner sides of the two A-shaped supports of the group, the two A-shaped support protruding shafts of the A-shaped supports of the group are arranged at intervals with set distances, the two A-shaped support protruding shafts 18 support the first roller 6, the A-shaped support protruding shafts 18 are arranged concentrically with the first roller 6, and the outer diameter of the first roller is ensured to be tangent to the inner side of the flat ground track plate;
the flat ground track fixing shell 10 also supports a second roller 46, in particular, the flat ground track fixing shell 10 is provided with a plurality of first threaded holes 20 at one side close to the projecting arm, the first threaded holes are fixed on the flat ground track fixing shell 10 through the holes of the square support 8 by bolts 9, the projecting shaft of the square support is concentrically matched with the second roller and fixes the second roller, and the second roller is tangent to the inner side of the flat ground track creeper tread 5.
In this embodiment, 3 square supports are provided, the size of the protruding shaft of each square support is consistent with that of the central hole of the second roller, the second roller supports the lower surface of the flat crawler, and the first roller supports the upper surface of the flat crawler.
Correspondingly, the flat ground track fixing shell 10 is provided with 3 pairs of first threaded holes on one side close to the projecting arm, and the hole center distance between each pair of first threaded holes is equal to the hollow distance between two holes of the square support.
The second rollers are provided in plurality, and two adjacent second rollers are spaced apart by a predetermined distance.
Specifically, the driving wheel ensures that the rotation of the crawler is not deviated through superposition of the gear teeth and the inner side wall of the crawler board, and 60-degree chamfering treatment is performed outside the gear teeth to form a gear chamfer 12 so as to fit a chamfer on the inner side of the flat ground crawler, the width of the gear teeth of the driving wheel of the flat ground crawler keeps consistent with the inner width of the crawler board of the flat ground crawler, the gear is ensured to be in full contact with the crawler board, and the normal movement is ensured.
Referring to fig. 2, the driving wheel of the flat ground crawler is flat and annular, no gear teeth are arranged, the hole arranged in the center of the driving wheel of the flat ground crawler is a key slot hole 13, the key slot hole of the driving wheel of the flat ground crawler is matched with the extension arm and is connected with the extension arm through a shaft, and the first circular hole groove 11 is arranged in the annular direction of the key slot hole.
Referring to fig. 3, the driven wheel of the flat ground caterpillar track is supported by a driven shaft, and the driven wheel is connected with a rotating mechanism to drive the rotating caterpillar track to rotate; the driven shaft penetrates through the flat ground track driven wheel and is provided with a driven wheel extending shaft 15, the driven wheel extending shaft 15 is used for supporting the rotating track driven wheel, the driven shaft and the driven wheel extending shaft 15 are matched with an opening on the U-shaped side of a driven wheel extending arm, a second round hole groove 14 is located in the circumferential direction of the driven wheel extending shaft 15, a plurality of second bolt holes 16 are formed in the end face of the driven wheel extending shaft 15, and bolts are used for being connected with a rotating track supporting plate through the second bolt holes, so that the flat ground track is connected with the rotating track.
It is understood that in the present embodiment, 6 or 8 second bolt holes are provided, and the second bolt holes are equally large, and the axes are on the same circumference.
Further, in order to realize the connection between the flat ground track and the rotating track, a driven wheel extending shaft 15 of a driven wheel 4 of the flat ground track is concentrically matched with a driving wheel hole 41 of a main wheel of the rotating track, the outer part of the driven wheel extending shaft 15 is overlapped with the inner wall of the driving wheel hole 41 of the main wheel of the rotating track, the diameter of the main wheel of the rotating track is larger than that of the driven wheel of the rotating track, the wheel centers of the main wheel of the rotating track and the driven wheel of the rotating track are on the same line, and a track plate of the rotating track surrounds the main wheel of the rotating track and the driven wheel of the rotating track and is tangent to the main wheel of the rotating track and the driven wheel of the rotating track with different sizes.
In order to achieve obstacle crossing, a power source such as a motor drives the shaft to rotate, the shaft is connected with the main wheel of the rotating track, and then the main wheel 21 of the rotating track is driven to rotate, so that the whole rotating track is rotated to a set position, and preparation is made for obstacle crossing.
Further, the rotating crawler comprises a plurality of rotating crawler track plates, the obstacle crossing is realized by adjusting aiming at different heights, the joint of the two adjacent rotating crawler track plates is provided with a long-strip open slot, the two adjacent rotating crawler track plates are connected through a slot, the connecting shaft 25 passes through the long-strip open slots of the two adjacent rotating crawler track plates and connects the two rotating crawler track plates, the movement of the connecting shaft in the long-strip open slot is ensured, the moving distance between the two rotating crawler track plates is ensured, and the length of the rotating crawler track is finally adjusted.
In order to provide power for extending and shortening the track shoe of the rotating track, a telescopic mechanism is arranged, the fixed end of the telescopic mechanism is connected with a main wheel of the rotating track, and the telescopic end is connected with a driven wheel of the rotating track; in this embodiment, telescopic machanism is hydraulic telescoping mechanism, and hydraulic telescoping mechanism includes fixed arm 26 and the flexible arm of hydraulic pressure 27 of concentric setting, and the one end and the rotatory track leading wheel of fixed arm 26 link firmly, and the one end that the fixed arm was kept away from to the flexible arm of hydraulic pressure is connected with the rotatory track trailing wheel, through the concertina movement of the flexible arm of hydraulic pressure for the fixed arm, and then changes the distance between rotatory track leading wheel and the rotatory track trailing wheel to reach the power source of flexible rotatory track.
In this embodiment, in order to ensure that the rotating track support plate is not affected when the center distance of the hydraulic telescopic mechanism is changed, as shown in fig. 6 and 7, the rotating track main wheel 21 and the rotating track driven wheel 22 are respectively provided with a U-shaped groove, the rotating track support plate 37 realizes connection of the rotating track main wheel and the rotating track driven wheel, as shown in fig. 8, the rotating track support plate 37 is provided with cylindrical protrusions with different sizes, such as a first cylindrical protrusion 42 and a second cylindrical protrusion 43, the second cylindrical protrusion 43 can be inserted into the U-shaped groove of the driving wheel and adapted to the U-shaped groove 38 of the driving wheel, the first cylindrical protrusion 42 can be inserted into the U-shaped groove of the driven wheel and adapted to the U-shaped groove 40 of the driven wheel, and the cylindrical protrusions are inserted into the corresponding U-shaped grooves, so that the rotating track main wheel and the rotating track driven wheel can move without affecting the rotating track support plate.
Wherein, the center of the rotating crawler belt wheel is provided with a driven wheel hole 39, and a U-shaped groove of the driven wheel is arranged by wrapping the driven wheel hole 39; likewise, the drive wheel U-shaped slot is disposed around the drive wheel aperture.
Further, referring to fig. 8, a circular groove 44 is formed in the rotating crawler support plate 37, the circular groove has two positions, and is respectively located on two sides of the rotating crawler support plate 37, a plurality of first cylindrical protrusions are arranged on the periphery of the circular groove on one position, the plurality of first cylindrical protrusions are located on two sides of the circular groove, a plurality of second cylindrical protrusions are arranged on the periphery of the circular groove on the other position, similarly, the plurality of second cylindrical protrusions are located on two sides of the circular groove, the size of the circular groove on the periphery of which the first cylindrical protrusions are arranged is smaller than that of the other circular groove, and a sufficient moving distance of the hydraulic arm is achieved through the arrangement of the two circular grooves.
In order to ensure the stability of the track plate in the telescopic process of the hydraulic arm, the rotating track main wheel and the rotating track driven wheel are respectively provided with a rotating fixing part, each rotating fixing part comprises a sliding block arranged on the rotating track main wheel or the rotating track driven wheel, and the sliding block is connected with the rotating track plate adjacent to the sliding block through a fixing shaft.
Referring to fig. 5, the rotating crawler belt is provided with a first hole from the wheel 22 to be inserted into the first slider 29, the first fixed shaft 30 is bent to have one end inserted into the hole of the first slider 29 and the other end concentrically fitted with the second fixed shaft 32; the second fixed shaft 32 is bent, the other end of the second fixed shaft is concentrically matched with a hole on the rotating crawler track plate 23, and an elastic element is arranged between the first fixed shaft 30 and the second fixed shaft 32, wherein the elastic element is a first spring 31, so that the two shafts are always in a fastening state. Through the arrangement of the structure, the rotary crawler track plate can be attached to the rotary crawler main wheel and the rotary crawler driven wheel, and the stability of the rotary crawler is guaranteed.
The rotating crawler main wheel 21 is provided with a second hole to be embedded into the second sliding block 33, the third fixing shaft 34 is bent, one end of the third fixing shaft extends into the hole of the second sliding block 33, and the other end of the third fixing shaft is concentrically matched with the fourth fixing shaft 36; the fourth stationary shaft 36 is bent, the other end of the fourth stationary shaft is concentrically fitted into a hole formed in the rotating crawler shoe 23, and a second spring 35 is installed between the third stationary shaft and the fourth stationary shaft to keep the two shafts in a fastened state all the time.
It should be noted that the second sliding block 33 may be provided with a plurality of blocks, and each second sliding block is provided with a corresponding third fixing shaft and a corresponding fourth fixing shaft.
It is easily understood that the first, second, third and fourth fixing shafts are L-shaped, i.e., each fixing shaft is a 90 ° bent fixing shaft.
Furthermore, it can be understood that the rotating track support plate 37 is used for supporting the rotating track, the rotating track support plate 37 is provided with two rotating track support plates, the two rotating track support plates are located on two sides of the rotating track, the rotating track support plate 37 is a hollow structure, the rotating track support plate is provided with a plurality of through holes 45 for installing support shafts, the support shafts are concentrically matched with the holes of the third rollers 28, the third rollers are fixed through the support shafts, the third rollers are located on two sides of the rotating track support plate, each side of the third rollers is provided with a plurality of bulges arranged at intervals, the bulges of the rotating track support plates on two sides of the third rollers, and the third rollers 28 are tangent to the inner side of the rotating track plate.
Example two
The embodiment provides an excavator, and the obstacle crossing crawler belt capable of adapting to different heights is adopted;
referring to fig. 9 and 10, the flat crawler belts are disposed on two sides of the main housing, the flat crawler belts on the two sides are provided with rotating crawler belts on the outer sides of the main housing, the main housing is connected with the flat crawler driving wheel through a driving shaft, and the main housing is connected with the flat crawler driven wheel through a transmission shaft and further connected to the rotating crawler belts through the transmission shaft.
The main shell 47 is provided with a driving shaft sleeve and a driven shaft sleeve, and the driving shaft 48 and the driven shaft 49 penetrate through the centers of the respective shaft sleeves and are concentric with a driving wheel of the flat ground crawler, a driven wheel of the flat ground crawler and a central hole of a main wheel of the rotating crawler; the driving shaft can be one and penetrates through two flat ground crawler driving wheels on two sides of the main shell, the main shell supports two driven shafts, and the rotating mechanism is connected with the two driven shafts through a transmission mechanism.
Specifically, the rotating mechanism includes a source of rotational power, which may be a motor, and the transmission mechanism is a gear transmission mechanism, with a first conical gear 50 fixed to one end of the driven shaft 49, which mates with a second conical gear 51 extending from a motor 52 mounted to the main housing. When the crawler belt is facing an obstacle, the rotation of the motor 52 drives the second bevel gear 51 to rotate, so that the driven shaft 49 is driven to rotate, and the rotation of the main wheel of the rotating crawler belt is realized.
Of course, it is understood that other structures of the excavator may be further installed through the main housing.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The obstacle crossing crawler belt capable of adapting to different heights is characterized by comprising a flat-ground crawler belt and a rotating crawler belt, wherein the flat-ground crawler belt comprises a flat-ground crawler belt plate supported by a flat-ground crawler belt driving wheel and a flat-ground crawler belt driven wheel, the flat-ground crawler belt driven wheel and a rotating crawler belt main wheel are coaxially arranged, and the rotating crawler belt main wheel can drive the rotating crawler belt to rotate relative to the flat-ground crawler belt so that the rotating crawler belt can exceed the bottom side surface of the flat-ground crawler belt after rotating for a set angle;
the rotating crawler comprises a rotating crawler supporting plate, the rotating crawler supporting plate supports a rotating crawler main wheel and a rotating crawler driven wheel, the rotating crawler main wheel and the rotating crawler driven wheel support a plurality of rotating crawler track plates, and two adjacent rotating crawler track plates are connected through a groove;
a telescopic mechanism is arranged between the main wheel of the rotating crawler and the driven wheel of the rotating crawler to adjust the whole length of the rotating crawler;
the rotating track main wheel and the rotating track driven wheel are respectively provided with a U-shaped groove, the two U-shaped grooves are arranged oppositely, the inner side of the rotating track supporting plate is provided with a protrusion, and the protrusion can be clamped into the U-shaped grooves to limit the moving path of the rotating track main wheel and the rotating track driven wheel.
2. The obstacle-crossing track capable of accommodating different heights as claimed in claim 1, wherein the minimum distance between the main wheel and the driven wheel of the rotating track is larger than the distance between the central axis of the driven wheel of the flat ground track and the bottom side surface of the flat ground track;
the diameter of the main wheel of the rotating track is larger than that of the driven wheel of the rotating track.
3. An obstacle-crossing track capable of accommodating varying heights as defined in claim 1, wherein the U-shaped channel is disposed around the center of the rotating track main wheel or the rotating track driven wheel;
the bulges are a plurality of cylindrical bulges.
4. The obstacle crossing crawler belt capable of adapting to different heights as claimed in claim 1, further comprising a flat crawler belt fixing shell, wherein one side of the flat crawler belt fixing shell is provided with a projecting arm for fixing a flat crawler belt driving wheel, and the other side is provided with a driven wheel projecting arm for supporting a flat crawler belt driven wheel;
the flat ground track fixing shell supports a first roller and a second roller, the first roller and the second roller are arranged diagonally, and the first roller and the second roller are respectively tangent to the inner sides of the flat ground track crawler boards on two sides of the flat ground track.
5. The obstacle-crossing track capable of being adapted to different heights according to claim 1, wherein the rotating track main wheel and the rotating track driven wheel are respectively provided with a rotating fixing part, the rotating fixing part comprises a sliding block mounted on the rotating track main wheel or the rotating track driven wheel, and the sliding block is connected with a rotating track shoe adjacent to the sliding block through a fixing shaft.
6. The obstacle-surmounting track capable of accommodating different heights of claim 5, wherein the rotating track support plates are arranged on two sides of the rotating track, the two rotating track support plates support a third roller through a support shaft, and the third roller is arranged tangentially to the inner side of the rotating track shoe;
two sides of the rotating crawler track plate are respectively provided with a long strip open slot, and the connecting shaft penetrates through the long strip open slots of the two adjacent rotating crawler track plates.
7. The obstacle-crossing crawler belt according to claim 5, wherein the sliding block is connected with a fixed shaft, the rotating crawler belt shoe is connected with another fixed shaft, and the two fixed shafts are connected through an elastic member.
8. The obstacle crossing crawler belt capable of adapting to different heights as claimed in claim 1, wherein a fixed end of the telescopic mechanism is fixed with the rotating crawler belt from a wheel, and a telescopic end of the telescopic mechanism is connected with the rotating crawler belt main wheel;
the driven wheel of the flat ground crawler is supported by a driven shaft, the driven shaft penetrates through the main wheel of the rotating crawler, and the driven wheel is connected with the rotating mechanism so as to drive the rotating crawler to rotate.
9. An excavator, characterized in that, the obstacle crossing crawler belt capable of adapting to different heights is adopted in any one of the claims 1 to 8;
the main shell is connected with a driving wheel of the flat crawler through a driving shaft.
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