CN114179926A - Guide wheel, crawler system and engineering machinery - Google Patents
Guide wheel, crawler system and engineering machinery Download PDFInfo
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- CN114179926A CN114179926A CN202111618766.2A CN202111618766A CN114179926A CN 114179926 A CN114179926 A CN 114179926A CN 202111618766 A CN202111618766 A CN 202111618766A CN 114179926 A CN114179926 A CN 114179926A
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- 238000003860 storage Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 230000001050 lubricating effect Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
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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 a guide wheel, a crawler system and engineering machinery, which comprise a left supporting seat, a right supporting seat, a guide wheel moving assembly and a fastener, wherein the left supporting seat is arranged on the left side of the crawler system; the left supporting seat and the right supporting seat are symmetrically arranged on two sides of the bracket; two sides of the guide wheel moving assembly are respectively installed between the left supporting seat and the right supporting seat through connecting pieces; the fasteners are respectively installed on the connecting pieces on the two sides, the guiding wheel moving assembly is guided through the fasteners on the two sides in an adjusting and loosening mode to move axially between the left supporting seat and the right supporting seat, and after the guiding wheel moving assembly is moved by a preset distance, the guiding wheel moving assembly is fixed together with the left supporting seat and the right supporting seat through the fasteners on the two sides in an adjusting and tightening mode. The crawler belt changing device not only realizes the left and right movement of the guide wheel relative to the supporting seat, but also realizes the height change of the axis of the guide wheel, and realizes different requirements when the crawler belt is changed.
Description
Technical Field
The invention is suitable for the field of engineering machinery, and particularly relates to a guide wheel.
Background
The current guide wheel structure is widely used in a lower vehicle structure of engineering machinery, and plays a role in guiding a track to correctly revolve, preventing the track from deviating and crossing the track in the running process of a track chassis. Generally, in the installation process of the guide wheel, the center line of the guide wheel is required to be aligned with the center line of the main longitudinal beam so as to correctly guide the track to revolve, but in the actual production, the alignment of the center line of the guide seat and the center line of the main longitudinal beam has deviation in the welding process of the guide seat and the main longitudinal beam, and the clearance fit of the guide wheel guide rail installed on the guide seat causes the offset of the guide wheel, the track is subjected to single-side eccentric wear under the guide of the guide wheel in the running process, further the wear of one belt of four wheels is caused, the use fault is caused, the correction method is to disassemble and get off the vehicle, the guide seat is planed and welded again, the actual correction is difficult and the cost is high,
therefore, the existing guide wheel structure cannot meet the use requirement.
Simultaneously, under different environment, mini-excavator need switch rubber track and rigid track, but two kinds of tracks have different requirements to the height of leading wheel axis, and rigid track requires leading wheel axis great with horizontal ground distance to make plane and ground under the track become certain angle, and rubber track requires leading wheel axis less with horizontal ground distance, makes plane and ground almost level under the rubber track, can promote the stability of traveling like this.
In the existing solution: (1) the guide wheel body is dead with guide wheel body and support seat round pin through the pivot for the unable axial displacement of guide wheel body, simultaneously, the guide wheel dress back on the guide seat, the unable height transform that realizes axis and level ground distance of guide wheel, at the change rubber track in-process, the travelling comfort of driving is relatively poor.
(2) The CN 112389555A patent designs a guide wheel mechanism, which adds an adjusting piece which is connected with a guide wheel in a relative rotation manner on a guide seat, realizes a first posture and a second posture of the guide wheel with different heights through a bolt on the adjusting piece, and meets the requirement of installing different crawler belts. In this patent, the key of plus regulating part for realizing guide wheel axis height is the guide wheel, but the fixed of regulating part passes through the bolt and links to each other with the guide holder, realizes the process at the first gesture and the second gesture of guide wheel, need tear the regulating part open, the upset back dress, and the narrow and small inner space of guide holder leads to fixing bolt to dismantle inconvenient, simultaneously, can't realize moving about the axial of guide wheel.
Disclosure of Invention
According to the defects of the prior art, the invention discloses a guide wheel.A threaded hole is formed in a guide wheel shaft, a connecting piece and a shaft are fastened by screws, the shoulder blocking structure of the connecting piece realizes the connection and fixation of the wheel body of the guide wheel and the shaft, only a revolute pair of the opposite shaft is released, and the left and right movement of the guide wheel relative to a supporting seat is realized by the threaded connection of a nut and the connecting piece; the distance that terminal surface is different for the leading wheel axis about left and right supporting seat, through overturning the leading wheel, can realize the height change of leading wheel axis, different requirements when realizing changing the track.
The invention is realized according to the following technical scheme:
the invention discloses a guide wheel, comprising:
the left supporting seat and the right supporting seat are symmetrically arranged on two sides of the bracket;
the two sides of the guide wheel moving assembly are respectively installed between the left supporting seat and the right supporting seat through connecting pieces;
the fasteners are respectively installed on the connecting pieces on the two sides, the guiding wheel moving assembly is guided to move axially between the left supporting seat and the right supporting seat by loosening the fasteners on the two sides, and after the guiding wheel moving assembly is moved by a preset distance, the guiding wheel moving assembly is fixed together with the left supporting seat and the right supporting seat by tightening the fasteners on the two sides.
Preferred solutions of the guide wheel moving assembly: the guide wheel moving assembly comprises a guide wheel welding assembly, an inner shaft seat, a guide wheel shaft and a shaft sleeve; the guide wheel welding assembly is formed by welding a guide wheel hub, a guide wheel outline and a guide wheel shaft body; the inner shaft seat, the shaft sleeve and the guide wheel welding assembly are sequentially arranged on the guide wheel shaft, the outer side of the inner shaft seat is aligned with two end faces of the guide wheel shaft, and the inner side of the inner shaft seat is completely attached to the outer side of the guide wheel shaft body.
Further scheme: sealing elements are arranged at grooves on two sides of the outer end of the guide wheel welding assembly and at a groove inside the inner shaft base; and an O-shaped ring is arranged between the guide wheel shaft and the inner shaft seats at the two sides.
The preferable scheme is as follows: the sealing element is composed of a floating seal ring and a floating seal rubber ring.
Preferred scheme of leading wheel axle: both ends of the guide wheel shaft are respectively provided with uniformly distributed threaded holes, and both sides of the guide wheel shaft are symmetrically provided with grooves for placing O-shaped rings; and the threaded holes at the two sides of the guide wheel shaft fix the connecting pieces together through screws.
The preferable scheme of the connecting piece is as follows: the end face of the connecting piece is provided with uniformly distributed screw holes, the diameter of the end face is between the diameter of the outer end shaft and the diameter of the inner end shaft of the annular shaft outside the inner shaft seat, the connecting piece at two sides is fixed on a guide wheel shaft, and the guide wheel welding assembly, the inner shaft seat, a shaft sleeve and the guide wheel shaft are completely fastened; the steps are arranged on the upper and lower parts of the end surface of the connecting piece, and when the connecting piece is installed with the left supporting seat and the right supporting seat, the guide wheel shaft can not rotate; the extension end of the connecting piece is provided with threads.
Further scheme: an oil storage tank is arranged in the guide wheel shaft body, and the oil storage tank is communicated with the shaft sleeve and the guide wheel shaft and used for lubricating the guide wheel shaft body, the shaft sleeve and the guide wheel shaft.
The preferable scheme of the left supporting seat and the right supporting seat is as follows: the left supporting seat and the right supporting seat are completely mirror-image parts; the left supporting seat is provided with a stop shoulder to prevent the guide wheel moving assembly from moving left and right after being installed; holes with different diameters are formed in the left supporting seat, and a limiting plate with a through hole and a step are arranged at the same time and used for limiting the axial moving distance of the guide wheel moving assembly; and threads are formed in the outer side hole of the supporting seat and are used in cooperation with a fastening piece.
Further scheme: the upper part and the lower part of the left supporting seat and the right supporting seat are a supporting surface I and a supporting surface II which are different in height, the distances between the supporting surface I and the supporting surface II relative to the axis of the guide wheel are different, and the first state and the second state of the guide wheel can be switched by 180-degree rotation of the guide wheel; wherein the guide wheel axis in the first state is higher than the guide wheel axis in the second state.
Further scheme: the left supporting seat and the right supporting seat are assembled in the sliding rails on two sides in the guide seat in a sliding mode, so that the guide wheels are assembled in the guide seat; in the process of switching the rubber track and the rigid track, the guide wheel is pulled out of the guide seat and rotates 180 degrees, so that the supporting surface I and the supporting surface II in the left supporting seat and the right supporting seat are turned over, and the height change of a wheel shaft of the guide wheel relative to the ground is realized.
Preferred embodiments of the fastener: the fastener comprises a nut and a pushing locking piece; the outer ring surface of the propelling locking piece is provided with external threads; the propelling locking piece is provided with an internal groove, the diameter of the internal groove is slightly larger than the major diameter of a thread of the extending end on the connecting piece, and the depth of the internal groove is larger than the movable distance of the guide wheel moving assembly; the nut is screwed at the extending end of the connecting piece, the guiding wheel moving assembly is axially moved by loosening the nuts on the two sides, and the guiding wheel moving assembly after moving is axially fixed by tightening the nuts on the two sides; impel retaining member and connect in left branch strut seat, right branch strut seat for push up the nut, prevent that the nut is not hard up in the use.
Further scheme: and an inner hexagonal socket is arranged on the outer side of the propelling locking piece and used for screwing the pressing nut behind the propelling locking piece.
The invention discloses a track system, comprising:
a crawler track comprising a plurality of track shoes connected in series to form a closed loop;
the driving wheel is arranged in the crawler belt and is positioned at the rear end of the crawler belt;
the guide wheel is arranged in the crawler belt and is positioned at the front end of the crawler belt;
the guide seat is arranged in the track and used for supporting the guide wheels to horizontally slide;
the tensioning device is arranged in the track, is connected with the bracket and is used for buffering the guide wheel;
a plurality of thrust wheels which are arranged in the track at intervals and are positioned at the lower part between the driving wheel and the guide wheel;
and the plurality of supporting chain wheels are arranged in the track at intervals and are positioned at the upper part between the driving wheel and the guide wheel.
The invention discloses engineering machinery provided with the crawler system.
Compared with the prior art, the invention has the beneficial effects that:
(1) in the existing guide wheel structure, the guide wheel after installation cannot realize axial movement, but the guide wheel with the movable shaft center can realize left and right movement of the guide wheel body in the axis direction, so that the track is driven to orbit to one side, the deviation rectification effect can be realized when the track is subjected to single-side eccentric wear, the guide seat is prevented from being planed and welded again, and the maintenance cost is saved.
(2) The distance between the axis of the guide wheel and the ground can be realized by turning the guide wheel, so that the angle between the lower plane of the crawler at the lower end of the guide wheel and the ground is changed, the angle requirements of the crawler and the rigid crawler are met when the rubber and the rigid crawler are switched, and the walking stability is ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
FIG. 1 is an isometric illustration of a guide wheel of the present invention;
FIG. 2 is a schematic diagram of the right limit of the leading axle body of the present invention;
FIG. 3 is a schematic view of the left limit of the leading axle body of the present invention;
FIG. 4 is a schematic view of a first attitude of the guide wheel of the present invention;
FIG. 5 is a second attitude schematic of the guide wheel of the present invention;
FIG. 6 is a schematic view of a connector structure of the present invention;
FIG. 7 is a schematic view of the locking projectile construction of the present invention;
FIG. 8 is a schematic view of the left and right supporting seats of the present invention.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides a guide wheel, which mainly solves the following problems: (1) in the welding process of the guide seat and the main longitudinal beam, the centering of the central line of the guide seat and the central line of the main longitudinal beam has deviation, and the guide seat is provided with a guide wheel guide rail in clearance fit, so that the guide wheel is offset, the track is subjected to single-side eccentric wear under the guide of the guide wheel in the walking process, the four wheels are further worn one by one, the use fault is caused, and the maintenance cost is higher; (2) rubber track and rigid track switch, and two kinds of tracks have different requirements to the relative ground height of leading wheel axis, and current leading wheel height can't change, leads to the stability of going relatively poor.
As shown in fig. 1, 2, 3, 4 and 5, the guide wheel has the following specific structure: the device mainly comprises a guide wheel moving assembly, a left supporting seat 10, a right supporting seat 18, a pushing locking piece 1, a connecting piece 2 and a nut 9; after the left supporting seat 10 and the right supporting seat 18 are connected through the bolt 11, the left supporting seat 10 and the right supporting seat 18 are completely fixed with the bracket 13, and the guide wheel moving assembly is screwed through the nut 9 and the propelling locking piece 1 under the action of the connecting piece 2, so that the guide wheel main body can move at a left-right random distance within the range of the axial limited distance A. The supporting surfaces 202 and 203 of the left supporting seat 10 and the right supporting seat 18 have different distances B and C relative to the guide wheel axis, and the guide wheel 1-1 is arranged in the guide seat 1-2 and can be switched into a first state and a second state through 180-degree rotation of the guide wheel 1-1, wherein the guide wheel axis in the first state is higher than the guide wheel axis in the second state.
A preferred embodiment of the above embodiment is given below with respect to the guide wheel moving assembly:
continuing to refer to fig. 1, 2 and 3, a guide wheel hub 14, a guide wheel outline 15 and a guide wheel shaft body 7 are welded to form a guide wheel welding assembly, grooves at two sides of the outer end of the guide wheel welding assembly are provided with a floating seal ring 16 and a floating seal rubber ring 17, grooves in the inner shaft seat 8 are synchronously provided with the floating seal ring 16 and the floating seal rubber ring 17, and the installed inner shaft seat 8, the O-shaped ring 5, the shaft sleeve 6 and the guide wheel welding assembly are sequentially arranged on the shaft 4 to form a guide wheel moving assembly. The outer side of the inner shaft seat 8 is ensured to be aligned with the two end surfaces of the shaft 4, and the inner side of the inner shaft seat 8 is completely attached to the outer side of the guide wheel shaft body 7.
Further scheme: be equipped with the oil storage tank in the leading wheel axle body 7, the oil storage tank communicates with axle sleeve 6 and leading wheel axle 4 for lubricate leading wheel axle body 7, axle sleeve 6 and leading wheel axle 4.
A preferred embodiment of the above embodiment with respect to the guiding axle is given below:
both ends of the guide wheel shaft 4 are respectively provided with uniformly distributed threaded holes, and meanwhile, the two sides of the guide wheel shaft 4 are symmetrically provided with grooves for placing the O-shaped rings 5. The threaded holes on the two sides of the guide wheel shaft 4 bolt the connecting piece 2 and the guide wheel shaft 4 through the screws 3.
A preferred embodiment of the above embodiment with respect to the connection is given below:
as shown in fig. 6, the end face 101 of the connecting element 2 is provided with screw holes 102 uniformly distributed, and the end face diameter 103 is between the outer end shaft diameter and the inner end shaft diameter of the outer annular shaft of the inner shaft seat 8, and is used for completely fastening the guide wheel moving assembly, the inner shaft seat 8, the O-ring 5, the shaft sleeve 6 and the shaft 4 to form a movable guide wheel main structure. The steps 104 are arranged on the upper and lower sides of the end face of the connecting piece 2, when the connecting piece is mounted with the left supporting seat 10 and the right supporting seat 18, the shaft 4 can not rotate, and the extending end 105 of the connecting piece 2 is provided with threads 106.
The following provides a preferred embodiment of the above embodiments with respect to the left support seat and the right support seat:
as shown in fig. 8, the left support seat 10 and the right support seat 18 are completely mirror images, and the structure of the left support seat 10 is mainly described as follows: left side supporting seat 10 sets up shelves shoulder 201, prevents to install back guide wheel and controls the drunkenness, and left side supporting seat 10 is the holding surface 202 and 203 of high difference from top to bottom, and wherein the holding surface 202 is B and C respectively with the holding surface 203 relative axle center height, and left side supporting seat 10 is inside to be opened has different diameter holes, sets up limiting plate 204 and the step 205 that has the through-hole simultaneously for spacing guide wheel axis displacement A, and left side supporting seat 10 outside downthehole portion is seted up screw thread 206, is used for advancing retaining member 1 and compresses tightly nut 9.
The following is a preferred embodiment of the above embodiment with respect to advancing the retaining member:
as shown in fig. 7, the outer circumferential surface 301 of the propelling locking member 1 is provided with an external thread, the inner groove 302 has a diameter slightly larger than the major diameter of the thread of the protruding end 105 of the connecting member, and has a depth larger than the movable distance a of the guide wheel, and an inner hexagonal head 303 is provided on the outer side thereof for screwing the propelling locking member 1, which acts to compress the nut 9 and simultaneously prevent dirt from entering the inside of the support base, thereby protecting the thread of the connecting member 2.
The working process is as follows:
in the process of axial movement of the guide wheel 1-1, firstly, the pushing locking pieces 1 at two ends are detached, if necessary, the wheel body of the guide wheel is moved rightwards, the left nut 9 is screwed anticlockwise to push out the distance L to be moved, then the right nut 9 is screwed clockwise to pull the whole wheel body of the guide wheel for the distance L in the axial direction, as shown in fig. 2, the nut 9 is screwed, then the pushing locking pieces 1 are screwed in from the outer sides of the left support seat 10 and the right support seat 18, the nut 9 is pressed tightly, the nut 9 is prevented from loosening in the use process, if necessary, the wheel body of the guide wheel is moved leftwards, and only reverse sequence operation is needed, as shown in fig. 3.
In the process of switching the rubber track and the rigid track, the guide wheel 1-1 is pulled out of the guide seat 1-2 and rotates 180 degrees to turn over the supporting surfaces 202 and 203 of the left supporting seat 10 and the right supporting seat 18, so that the height change of the wheel axle of the guide wheel relative to the ground can be realized, and the running stability of the chassis after the track is replaced is ensured as shown in fig. 4 and 5.
Therefore, in the existing guide wheel structure, the guide wheel cannot axially move after being installed, and the guide wheel with the variable axial center position can realize the left-and-right movement of the guide wheel body in the axial direction, so that the track is driven to rotate towards one side, the deviation rectifying effect can be realized when the single side of the track is eccentrically worn, the guide seat is prevented from being planed and welded again, and the maintenance cost is saved; the distance between the axis of the guide wheel and the ground can be realized by turning the guide wheel, so that the angle between the lower plane of the crawler at the lower end of the guide wheel and the ground is changed, the angle requirements of the crawler and the rigid crawler are met when the rubber and the rigid crawler are switched, and the walking stability is ensured.
The invention also discloses a crawler system, which comprises a crawler, a driving wheel, the guide wheel, a guide seat, a tensioning device, a plurality of thrust wheels and a plurality of carrier chain wheels; the crawler belt is composed of a plurality of crawler belt plates which are sequentially connected and form a closed loop; the driving wheel is arranged in the crawler belt and is positioned at the rear end of the crawler belt; the guide wheel is arranged in the crawler belt and is positioned at the front end of the crawler belt; the guide seat is arranged in the track and used for supporting the guide wheels to horizontally slide; the tensioning device is arranged in the track, connected with the bracket and used for buffering the guide wheel; the plurality of thrust wheels are arranged in the track at intervals and are positioned at the lower part between the driving wheel and the guide wheel; the plurality of supporting chain wheels are arranged in the track at intervals and are positioned at the upper part between the driving wheel and the guide wheel.
The invention also discloses engineering machinery provided with the crawler system.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than others, combinations of features of different embodiments are also meant to be within the scope of the invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use the combination according to the known technical solutions and technical problems to be solved by the present application.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (14)
1. A guide wheel, comprising:
the left supporting seat and the right supporting seat are symmetrically arranged on two sides of the bracket;
the two sides of the guide wheel moving assembly are respectively installed between the left supporting seat and the right supporting seat through connecting pieces;
the fasteners are respectively installed on the connecting pieces on the two sides, the guiding wheel moving assembly is guided to move axially between the left supporting seat and the right supporting seat by loosening the fasteners on the two sides, and after the guiding wheel moving assembly is moved by a preset distance, the guiding wheel moving assembly is fixed together with the left supporting seat and the right supporting seat by tightening the fasteners on the two sides.
2. The guide wheel according to claim 1, wherein:
the guide wheel moving assembly comprises a guide wheel welding assembly, an inner shaft seat, a guide wheel shaft and a shaft sleeve;
the guide wheel welding assembly is formed by welding a guide wheel hub, a guide wheel outline and a guide wheel shaft body;
the inner shaft seat, the shaft sleeve and the guide wheel welding assembly are sequentially arranged on the guide wheel shaft, the outer side of the inner shaft seat is aligned with two end faces of the guide wheel shaft, and the inner side of the inner shaft seat is completely attached to the outer side of the guide wheel shaft body.
3. The guide wheel according to claim 2, wherein:
sealing elements are arranged at grooves on two sides of the outer end of the guide wheel welding assembly and at a groove inside the inner shaft base;
and an O-shaped ring is arranged between the guide wheel shaft and the inner shaft seats at the two sides.
4. A guide wheel according to claim 3, wherein:
the sealing element is composed of a floating seal ring and a floating seal rubber ring.
5. The guide wheel according to claim 2, wherein:
both ends of the guide wheel shaft are respectively provided with uniformly distributed threaded holes, and both sides of the guide wheel shaft are symmetrically provided with grooves for placing O-shaped rings;
and the threaded holes at the two sides of the guide wheel shaft fix the connecting pieces together through screws.
6. The guide wheel according to claim 2, wherein:
the end face of the connecting piece is provided with uniformly distributed screw holes, the diameter of the end face is between the diameter of the outer end shaft and the diameter of the inner end shaft of the annular shaft outside the inner shaft seat, the connecting piece at two sides is fixed on a guide wheel shaft, and the guide wheel welding assembly, the inner shaft seat, a shaft sleeve and the guide wheel shaft are completely fastened;
the steps are arranged on the upper and lower parts of the end surface of the connecting piece, and when the connecting piece is installed with the left supporting seat and the right supporting seat, the guide wheel shaft can not rotate;
the extension end of the connecting piece is provided with threads.
7. The guide wheel according to claim 2, wherein:
an oil storage tank is arranged in the guide wheel shaft body, and the oil storage tank is communicated with the shaft sleeve and the guide wheel shaft and used for lubricating the guide wheel shaft body, the shaft sleeve and the guide wheel shaft.
8. The guide wheel according to claim 1, wherein:
the left supporting seat and the right supporting seat are completely mirror-image parts;
the left supporting seat is provided with a stop shoulder to prevent the guide wheel moving assembly from moving left and right after being installed;
holes with different diameters are formed in the left supporting seat, and a limiting plate with a through hole and a step are arranged at the same time and used for limiting the axial moving distance of the guide wheel moving assembly;
and threads are formed in the outer side hole of the supporting seat and are used in cooperation with a fastening piece.
9. The guide wheel according to claim 1, wherein:
the upper part and the lower part of the left supporting seat and the right supporting seat are a supporting surface I and a supporting surface II which are different in height, the distances between the supporting surface I and the supporting surface II relative to the axis of the guide wheel are different, and the first state and the second state of the guide wheel can be switched by 180-degree rotation of the guide wheel;
wherein the guide wheel axis in the first state is higher than the guide wheel axis in the second state.
10. The guide wheel according to claim 9, wherein:
the left supporting seat and the right supporting seat are assembled in the sliding rails on two sides in the guide seat in a sliding mode, so that the guide wheels are assembled in the guide seat;
in the process of switching the rubber track and the rigid track, the guide wheel is pulled out of the guide seat and rotates 180 degrees, so that the supporting surface I and the supporting surface II in the left supporting seat and the right supporting seat are turned over, and the height change of a wheel shaft of the guide wheel relative to the ground is realized.
11. The guide wheel according to claim 1, wherein:
the fastener comprises a nut and a pushing locking piece;
the outer ring surface of the propelling locking piece is provided with external threads;
the propelling locking piece is provided with an internal groove, the diameter of the internal groove is slightly larger than the major diameter of a thread of the extending end on the connecting piece, and the depth of the internal groove is larger than the movable distance of the guide wheel moving assembly;
the nut is screwed at the extending end of the connecting piece, the guiding wheel moving assembly is axially moved by loosening the nuts on the two sides, and the guiding wheel moving assembly after moving is axially fixed by tightening the nuts on the two sides;
impel retaining member and connect in left branch strut seat, right branch strut seat for push up the nut, prevent that the nut is not hard up in the use.
12. The guide wheel according to claim 11, wherein:
and an inner hexagonal socket is arranged on the outer side of the propelling locking piece and used for screwing the pressing nut behind the propelling locking piece.
13. A track system, comprising:
a crawler track comprising a plurality of track shoes connected in series to form a closed loop;
the driving wheel is arranged in the crawler belt and is positioned at the rear end of the crawler belt;
the idler wheel of any one of claims 1-12 disposed within the track at a forward end of the track;
the guide seat is arranged in the track and used for supporting the guide wheels to horizontally slide;
the tensioning device is arranged in the track, is connected with the bracket and is used for buffering the guide wheel;
a plurality of thrust wheels which are arranged in the track at intervals and are positioned at the lower part between the driving wheel and the guide wheel;
and the plurality of supporting chain wheels are arranged in the track at intervals and are positioned at the upper part between the driving wheel and the guide wheel.
14. A construction machine characterized in that:
a track system as claimed in claim 13 is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111618766.2A CN114179926A (en) | 2021-12-28 | 2021-12-28 | Guide wheel, crawler system and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111618766.2A CN114179926A (en) | 2021-12-28 | 2021-12-28 | Guide wheel, crawler system and engineering machinery |
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| Publication Number | Publication Date |
|---|---|
| CN114179926A true CN114179926A (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111618766.2A Pending CN114179926A (en) | 2021-12-28 | 2021-12-28 | Guide wheel, crawler system and engineering machinery |
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| CN (1) | CN114179926A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN203486034U (en) * | 2013-10-08 | 2014-03-19 | 第一拖拉机股份有限公司 | Guiding wheel adjusting device for caterpillar tractor |
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| CN206144934U (en) * | 2016-10-31 | 2017-05-03 | 徐州徐工挖掘机械有限公司 | Draw guide wheel shaft seat and pin structure for hub connection |
| CN209700810U (en) * | 2019-01-18 | 2019-11-29 | 云南旭程农业科技有限公司 | A kind of Athey wheel of adjustable-width |
| CN212556567U (en) * | 2020-05-30 | 2021-02-19 | 山东振淇机械股份有限公司 | Guide wheel convenient to adjust for engineering machinery |
| CN112389555A (en) * | 2020-11-25 | 2021-02-23 | 三一重机有限公司 | Guide wheel mechanism, drive device, and excavator |
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2021
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| CN101267974A (en) * | 2005-09-15 | 2008-09-17 | 卡特彼勒公司 | Vertical idler adjuster for track-type work machine |
| JP2009132312A (en) * | 2007-11-30 | 2009-06-18 | Iseki & Co Ltd | Semi-crawler type working vehicle |
| CN203486034U (en) * | 2013-10-08 | 2014-03-19 | 第一拖拉机股份有限公司 | Guiding wheel adjusting device for caterpillar tractor |
| CN204095946U (en) * | 2014-09-18 | 2015-01-14 | 上海中联重科桩工机械有限公司 | A kind of track adjusting wheel fixed mount, the track frame with it and track unit |
| CN206144934U (en) * | 2016-10-31 | 2017-05-03 | 徐州徐工挖掘机械有限公司 | Draw guide wheel shaft seat and pin structure for hub connection |
| CN209700810U (en) * | 2019-01-18 | 2019-11-29 | 云南旭程农业科技有限公司 | A kind of Athey wheel of adjustable-width |
| CN212556567U (en) * | 2020-05-30 | 2021-02-19 | 山东振淇机械股份有限公司 | Guide wheel convenient to adjust for engineering machinery |
| CN112389555A (en) * | 2020-11-25 | 2021-02-23 | 三一重机有限公司 | Guide wheel mechanism, drive device, and excavator |
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Application publication date: 20220315 |