CN111169551A - Track guard plate and excavator - Google Patents
Track guard plate and excavator Download PDFInfo
- Publication number
- CN111169551A CN111169551A CN201911286340.4A CN201911286340A CN111169551A CN 111169551 A CN111169551 A CN 111169551A CN 201911286340 A CN201911286340 A CN 201911286340A CN 111169551 A CN111169551 A CN 111169551A
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- Prior art keywords
- track
- guard
- mounting
- mounting assembly
- plate
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- Pending
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- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 5
- 230000001012 protector Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- 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
- B62D55/0845—Protection devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The application provides a track backplate and excavator relates to excavator technical field for protection track caterpillar, track backplate install in the frame and be formed with the guard space that is used for holding the part of track caterpillar, the size of guard space on the width direction of track caterpillar can be adjusted. The application provides a track backplate with protection space that size can be adjusted on the width direction of track caterpillar track, is applied to the excavator with it, solves among the prior art to a certain extent that track backplate both sides board wearing and tearing back thickness dimension diminishes for distance between the board of both sides increases, leads to the track backplate can not prevent effectively that the track caterpillar track breaks away from the technical problem with the meshing of thrust wheel.
Description
Technical Field
The application relates to the technical field of excavators, in particular to a track guard plate and an excavator.
Background
The crawler guard plate is a part matched with a crawler in engineering machinery such as an excavator, a bulldozer and the like, and the left side plate and the right side plate span the two sides of the crawler caterpillar track, so that the crawler caterpillar track is prevented from being disengaged from the thrust wheels in the process of walking on uneven road surfaces.
However, when the excavator works under a severe working condition, the end part of the track caterpillar in the width direction is easily interfered with the two side plates of the track guard plate, so that abrasion is caused. The thickness size diminishes after track backplate both sides board wearing and tearing for the distance increase between the board of both sides, lead to the track backplate can not prevent effectively that track caterpillar from breaking away from with the meshing of thrust wheel.
Disclosure of Invention
In view of this, the application provides a track backplate and excavator, and aim at to a certain extent solves among the prior art track backplate both sides board wearing and tearing back thickness size diminish for the distance between the both sides board increases, leads to the track backplate can not prevent effectively that the track caterpillar from breaking away from with the technical problem of the meshing of thrust wheel.
In a first aspect, the present application provides a track guard for guarding a track rail, the track guard being mounted to a frame and formed with a guard space for accommodating a portion of the track rail, the guard space being adjustable in size in a width direction of the track rail.
Preferably, the track guard comprises:
a first guard member provided on a first side in a width direction of the crawler track;
a second guard member provided on a second side in the width direction of the crawler track;
the guard space is a space in which the first guard member and the second guard member face each other, and a portion of the first guard member and a portion of the second guard member each overlap the track rail when viewed in a width direction of the track rail.
Preferably, the track guard further comprises:
a mounting assembly having first and second side portions connected to the first and second guard members, respectively, and configured to mount the first and second guard members to the frame.
Preferably, the track guard further comprises:
a first adjustment member disposed between a first side of the mounting assembly and the first guard member;
a second adjustment member disposed between a second side of the mounting assembly and the second guard member;
a dimension of the first adjustment member between the first side of the mounting assembly and the first shield member is adjustable, and a dimension of the second adjustment member between the second side of the mounting assembly and the second shield member is adjustable.
Preferably, the first side of the mounting assembly is detachably connected to the first shielding member by a first connecting member, and the second side of the mounting assembly is detachably connected to the second shielding member by a second connecting member.
Preferably, the first connecting member and the second connecting member are each a bolt, and a side of the first guard member facing the mounting assembly, a side of the second guard member facing the mounting group, a first side of the mounting assembly, and a second side of the mounting assembly are each formed with a mounting hole to receive the bolt.
Preferably, the first regulation member and the second regulation member each include a plurality of regulation shims, and the thickness of the first regulation member or the thickness of the second regulation member is adjusted by adjusting the number of the regulation shims;
the adjuster shim is formed with a notch portion through which the bolt passes when the adjuster shim is installed between the first guard member and the first side portion of the installation assembly or between the second guard member and the second side portion of the installation assembly.
Preferably, the first guard member and the second guard member are both detachably connected to the frame by a third connecting member.
Preferably, the number of the mounting assemblies is two or more, and one or more thrust wheels can be accommodated between two adjacent mounting assemblies.
In a second aspect, the present application provides an excavator comprising a track guard as described above.
The application provides a track backplate with protection space that size can be adjusted on the width direction of track caterpillar track, is applied to the excavator with it, solves among the prior art to a certain extent that track backplate both sides board wearing and tearing back thickness dimension diminishes for distance between the board of both sides increases, leads to the track backplate can not prevent effectively that the track caterpillar track breaks away from the technical problem with the meshing of thrust wheel.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 shows a schematic view of a track apron;
FIG. 2 shows a schematic diagram of an exploded view of the track guard;
FIG. 3 shows a schematic view of a cross-sectional view of the track apron taken along the length of the caterpillar track;
FIG. 4 is a schematic view illustrating a first perspective of mounting of the track apron to the frame;
FIG. 5 is a schematic view of a second perspective of the track shield being mounted to the frame.
Reference numerals:
1-a track guard plate; 11-a first side plate member; 111-a first waist-shaped aperture; 12-a second side plate member; 121-a second waist-shaped aperture; 13-mounting the assembly; 131-frame mounting holes; 14-a first spacer; 15-a second spacer; 16-a first bolt; 17-a second bolt; 2-a thrust wheel; 3-vehicle frame.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. 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.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like 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, and 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 application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
FIG. 1 shows a schematic view of a track apron; FIG. 2 shows a schematic diagram of an exploded view of the track guard; FIG. 3 shows a schematic view of a cross-sectional view of the track apron taken along the length of the caterpillar track; FIG. 4 is a schematic view illustrating a first perspective of mounting of the track apron to the frame; FIG. 5 is a schematic view of a second perspective of the track shield being mounted to the frame.
Referring to fig. 1 to 5, the present embodiment provides a track guard including: the first guard member, the second guard member, the mounting assembly, the first adjustment member, the second adjustment member, the first connection member, the second connection member, and the third connection member. The connection relationship and the operation principle of the above components will be described in detail below.
The track guard 1 in this embodiment is for protecting a track chain, i.e. the track guard 1 may be mounted to the frame 3 and form a protected space for accommodating a portion of the track chain. So in the process that the track caterpillar is engaged with the thrust wheel 2, when the track caterpillar inclines relative to the horizontal plane, for example, the position of the track caterpillar in the width direction of the track caterpillar is always limited in the protection space by the track protection plate 1, so that the reliability of continuous engagement of the track caterpillar and the thrust wheel 2 is ensured.
However, when the end portion of the track link in the width direction frequently interferes with the member of the track guard 1 forming the guard space, the member of the track guard 1 forming the guard space is worn, so that the dimension of the guard space in the width direction of the track guard 1 is increased, and the guard space cannot effectively limit the inclined track link, and finally, the track link is disengaged from the track roller 2.
Therefore, for the above reasons, in the embodiment, the dimension of the protection space of the track apron 1 in the width direction of the track link can be adjusted, so that when the protection space is increased due to wear, the dimension of the protection space of the track apron 1 in the width direction of the track link can be reduced to compensate for the worn portion, and the limit of the track apron 1 on the track link can be ensured to always ensure the reliable engagement of the track link with the track roller 2.
In an embodiment, the track guard 1 may include a first guard member and a second guard member, wherein the first guard member may be disposed on a first side in a width direction of the track link, and the second guard member may be disposed on a second side in the width direction of the track link. In an embodiment, the second guard member may be identical in structure and mounting to the first guard member.
In an embodiment, as shown in fig. 2, the first shielding member may be a first side plate member 11, and the first side plate member 11 may include a first plate portion and a second plate portion that are perpendicularly connected to each other, and may further include a reinforcing rib (for improving the strength of the first side plate member 11) that connects the first plate portion and the second plate portion. The second shielding member may be the second side plate member 12, and the second side plate member 12 may include a third plate portion and a fourth plate portion that are perpendicularly connected to each other, and may further include a reinforcing rib (for improving the strength of the second side plate member 12) that connects the third plate portion and the fourth plate portion.
In an embodiment, the first plate portion may be parallel to the third plate portion, and the shielding space is a space where the first plate portion and the third plate portion face each other. The protection of the protection space to the caterpillar track can be understood as follows: when viewed in the width direction of the track rail, a portion of the first plate portion and a portion of the third plate portion each overlap the track rail, and the distance between the first plate portion and the third plate portion is set to a distance that ensures reliable engagement of the track rail with the track roller 2, depending on the specific width of the track rail.
In an embodiment, the first plate portion and the third plate portion are connected by a mounting assembly 13. Specifically, the first side portion and the second side portion of the mounting assembly 13 are connected to the first plate portion and the third plate portion, respectively. The mounting assembly 13 may be formed of a plurality of plates in a rectangular parallelepiped shape or a substantially rectangular parallelepiped shape to secure the overall strength of the track protector 1. In an embodiment, the mounting assembly 13 may include five plates, three of which are associated with the mounting and two of which are used to add strength to the mounting assembly 13 itself.
As shown in fig. 1 and 2, according to the above-described features, for convenience of description, the following defines a plate as a first mounting plate as a first side portion of the above-described mounting member 13, a plate as a second side portion of the above-described mounting member 13 as a second mounting plate, and a plate connecting the first mounting plate and used for mounting the mounting member 13 to the frame 3 as a third mounting plate, that is, the first to third mounting plates of the mounting member 13 are associated with mounting. In an embodiment, the first mounting panel may be detachably connected to the first plate portion by a first connecting member, and the second mounting panel may be detachably connected to the third plate portion by a second connecting member.
According to the above-described features, in an embodiment, the first regulation member may be disposed between the first mounting plate and the first plate portion, and the second regulation member may be disposed between the second mounting plate and the third plate portion. The dimension of the first adjustment member between the first mounting plate and the first plate portion can be adjusted, and the dimension of the second adjustment member between the second mounting plate and the third plate portion can be adjusted.
In an embodiment, the first and second connecting members may both be bolts, i.e. for example the first connecting member may be the first bolt 16 and the second connecting member may be the second bolt 17. As shown in fig. 3, in the embodiment, the first plate portion, the first mounting plate portion, the third plate portion and the second mounting plate portion may be all opened with mounting holes for accommodating bolts. In the embodiment, since the first plate portion and the first mounting plate are connected in the same manner as the third plate portion and the second mounting plate, the description of the connection between the third plate portion and the second mounting plate is omitted below, and the description will be given only by taking the connection between the first plate portion and the first mounting plate as an example.
In an embodiment, the mounting hole of the first mounting plate may be formed with an internal thread that mates with an external thread of the first bolt 16, and in a state where the first mounting plate, the first adjustment member, and the first plate portion are stacked, the first bolt 16 can successively pass through the mounting hole of the first plate portion, the following notch portion of the first adjustment member, and be screwed into the mounting hole of the first mounting plate.
In an embodiment, the first and second trim members may each include a plurality of trim shims, i.e., the first trim member may include a plurality of first trim shims 14 and the second trim member may include a plurality of second trim shims 15. The arrangement of the first regulation member may be the same as that of the second regulation member, based on which the first regulation member will be specifically described below by way of example and the description of the second regulation member will be omitted.
In an embodiment, the first adjusting shim 14 may be formed in a rectangular shape having the same size as the first mounting plate, so that the surfaces of the first mounting plate and the first plate portion facing each other are parallel or substantially parallel, so as to ensure that the pretension load borne by the surfaces of the first mounting plate and the first plate portion facing each other is uniform when the first bolt 16 is tightened, and avoid the situation that the first plate portion shakes relative to the first mounting plate when the first plate portion abuts against the end of the track chain during the operation of the track guard 1.
Further, the first adjustment shim 14 may be formed with a notched portion through which the first bolt 16 penetrates when the first adjustment shim 14 is mounted between the first plate portion and the first mounting plate. In an embodiment, the notched portion may be formed in a circular shape slightly larger than the outer diameter of the first bolt 16 (in this case, the notched portion is a hole portion).
However, without being limited thereto, in an embodiment, the notch portion may be formed in a bar shape, a first end of the notch portion may be located in the first adjustment pad 14, and a second end of the notch portion may extend parallel to one side portion of the rectangular-shaped first adjustment pad 14 to the other side portion perpendicular to the side portion. In this way, when the first bolt 16 and a third bolt described below are loosened, the first adjustment washer 14 is inserted or pulled out from between the first plate portion and the first mounting plate member to adjust the distance between the first plate portion and the third plate portion, and in this state, the portion of the first bolt 16 passing through the outer side portion of the first adjustment washer 14 is accommodated in the notched portion.
Since the position of the first side plate member 11 and the second side plate member 12 in the width direction of the track chain will be changed when the distance between the first plate portion and the third plate portion is adjusted in the above manner, in the embodiment, the following arrangement is adopted to cope with such a position change while ensuring reliable connection of the track apron 1 and the frame 3.
In the embodiment, the following two connection methods can be used together to mount the track guard 1 to the frame 3. In the first connection method, a frame mounting hole 131 is formed in a third mounting plate of the mounting assembly 13, and the third mounting plate is mounted to the frame 3 by a bolt, so that the mounting assembly 13 is mounted to the frame 3, and the track protector 1 is mounted to the frame 3. The second connection method is to directly mount the first side plate member 11 and the second side plate member 12 to the frame 3, specifically, the second plate portion of the first side plate member 11 may be formed with a first waist-shaped hole 111, and the fourth plate portion of the second side plate member may be formed with a second waist-shaped hole 121, because the first side plate member 11 and the second side plate member 12 may be mounted in the same manner, and based on this, the description of the mounting manner of the second side plate member 12 is also omitted here, and the description of the mounting manner is given by taking the first side plate member 11 as an example.
In the embodiment, the third connecting member detachably attaches the second plate portion to the frame 3. The third connecting member may also be a third bolt. The first waist-shaped hole 111 may extend in the width direction of the caterpillar, and the third bolt may penetrate through the first waist-shaped hole 111 and be screwed to the frame 3, so as to mount the second plate portion to the frame 3, and further mount the first side plate member 11 to the frame 3.
In this way, when the number of the first adjustment shims 14 needs to be increased or decreased, the first bolt 16 may be unscrewed (for the first adjustment shim 14 having the circular notch portion, the first bolt 16 needs to be completely unscrewed from the plurality of first adjustment shims 14, and for the first tab having the strip-shaped notch portion, only the first bolt 16 may be unscrewed), and then the third bolt may be unscrewed until the first side plate member 11 can slide relative to the third bolt through the waist-shaped hole. After the first adjustment pad 14 is installed or removed, the first bolt 16 may be tightened and the third bolt may be tightened.
In practice, when the track apron 1 is mounted to the frame 3, the portion of the protected space that also houses the track roller 2, i.e. the track roller 2 and the track link, engage within the protected space. In this regard, to further ensure the overall strength of the track plate 1, the number of the mounting assemblies 13 may be two or more, and in embodiments, more (i.e., more than two) mounting assemblies 13 are employed. In addition, a plurality of thrust wheels 2 can be accommodated between two adjacent mounting assemblies 13, in the embodiment, one thrust wheel 2 can be accommodated between two adjacent mounting assemblies 13 (the accommodation is the above-mentioned "accommodating part for the thrust wheel 2"), the operator can perform corresponding arrangement according to the span between two adjacent thrust wheels 2 and the number of the thrust wheels 2, and since the connection between the mounting assemblies 13 and the first side plate member 11 and the second side plate member 12 is detachable, the track protector 1 in the embodiment has good adaptability when facing different thrust wheels 2.
In view of the above-described features, the materials and formation of the above-described components will be described in detail below.
In an embodiment, the first side plate member 11, the second side plate member 12, and the mounting assembly 13 may be formed of wear-resistant steel, each plate portion forming the first side plate member 11 (the second side plate member 12) and the reinforcing rib may be connected by welding, and each mounting plate of the mounting assembly 13 may also be connected by welding.
The embodiment further provides an excavator, which comprises the track guard plate 1 and the beneficial effects of the track guard plate 1, and the description is omitted here.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all changes that can be made in the details of the description and drawings, or directly/indirectly implemented in other related technical fields, are intended to be embraced therein without departing from the spirit of the present application.
Claims (10)
1. A track guard for protecting a track link, the track guard being mounted to a frame and forming a protected space for receiving a portion of the track link,
the dimension of the shielded space in the width direction of the track link can be adjusted.
2. The track guard of claim 1, comprising:
a first guard member provided on a first side in a width direction of the crawler track;
a second guard member provided on a second side in the width direction of the crawler track;
the guard space is a space in which the first guard member and the second guard member face each other, and a portion of the first guard member and a portion of the second guard member each overlap the track rail when viewed in a width direction of the track rail.
3. The track guard of claim 2, further comprising:
a mounting assembly having first and second side portions connected to the first and second guard members, respectively, and configured to mount the first and second guard members to the frame.
4. The track guard of claim 3, further comprising:
a first adjustment member disposed between a first side of the mounting assembly and the first guard member;
a second adjustment member disposed between a second side of the mounting assembly and the second guard member;
a dimension of the first adjustment member between the first side of the mounting assembly and the first shield member is adjustable, and a dimension of the second adjustment member between the second side of the mounting assembly and the second shield member is adjustable.
5. The track apron of claim 4,
the first side of the mounting assembly is detachably connected with the first protection member through a first connecting member, and the second side of the mounting assembly is detachably connected with the second protection member through a second connecting member.
6. The track apron of claim 5,
the first connecting member and the second connecting member are both bolts, and the side of the first guard member facing the mounting assembly, the side of the second guard member facing the mounting group, the first side of the mounting assembly and the second side of the mounting assembly are each formed with a mounting hole that receives the bolt.
7. The track apron of claim 6,
the first adjusting member and the second adjusting member each include a plurality of adjusting shims, and the thickness of the first adjusting member or the thickness of the second adjusting member is adjusted by adjusting the number of the adjusting shims;
the adjuster shim is formed with a notch portion through which the bolt passes when the adjuster shim is installed between the first guard member and the first side portion of the installation assembly or between the second guard member and the second side portion of the installation assembly.
8. The track apron of any one of claims 2 to 7,
the first guard member and the second guard member are both detachably connected to the frame by a third connecting member.
9. Track apron according to one of the claims 3 to 7,
the number of the mounting assemblies is two or more, and one or more supporting wheels can be accommodated between two adjacent mounting assemblies.
10. An excavator comprising a track guard as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911286340.4A CN111169551A (en) | 2019-12-13 | 2019-12-13 | Track guard plate and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911286340.4A CN111169551A (en) | 2019-12-13 | 2019-12-13 | Track guard plate and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111169551A true CN111169551A (en) | 2020-05-19 |
Family
ID=70650201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911286340.4A Pending CN111169551A (en) | 2019-12-13 | 2019-12-13 | Track guard plate and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111169551A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57105880U (en) * | 1980-12-20 | 1982-06-30 | ||
| JPH0560990U (en) * | 1992-01-24 | 1993-08-10 | 株式会社小松製作所 | Fastening device |
| JPH0735273U (en) * | 1993-12-14 | 1995-06-27 | 株式会社小松製作所 | Idler support device for tracked vehicle |
| JP2007083764A (en) * | 2005-09-20 | 2007-04-05 | Hitachi Constr Mach Co Ltd | Crawler type traveling body |
| CN102444154A (en) * | 2010-09-14 | 2012-05-09 | 神钢建设机械株式会社 | Device removing/re-inserting structure, and device removing/re-inserting method for construction machine |
| CN203372313U (en) * | 2013-07-26 | 2014-01-01 | 安徽柳工起重机有限公司 | Crawler crane lower vehicle gap adjusting device |
| CN104691635A (en) * | 2015-03-18 | 2015-06-10 | 徐工集团工程机械股份有限公司 | Drawer type clearance adjusting device, crawling crane and clearance adjusting method |
| CN105711665A (en) * | 2016-05-11 | 2016-06-29 | 徐工集团工程机械股份有限公司 | Horizontal clearance adjustment device for crawler base |
| CN211139482U (en) * | 2019-12-13 | 2020-07-31 | 三一重机有限公司 | Track guard plate and excavator |
-
2019
- 2019-12-13 CN CN201911286340.4A patent/CN111169551A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57105880U (en) * | 1980-12-20 | 1982-06-30 | ||
| JPH0560990U (en) * | 1992-01-24 | 1993-08-10 | 株式会社小松製作所 | Fastening device |
| JPH0735273U (en) * | 1993-12-14 | 1995-06-27 | 株式会社小松製作所 | Idler support device for tracked vehicle |
| JP2007083764A (en) * | 2005-09-20 | 2007-04-05 | Hitachi Constr Mach Co Ltd | Crawler type traveling body |
| CN102444154A (en) * | 2010-09-14 | 2012-05-09 | 神钢建设机械株式会社 | Device removing/re-inserting structure, and device removing/re-inserting method for construction machine |
| CN203372313U (en) * | 2013-07-26 | 2014-01-01 | 安徽柳工起重机有限公司 | Crawler crane lower vehicle gap adjusting device |
| CN104691635A (en) * | 2015-03-18 | 2015-06-10 | 徐工集团工程机械股份有限公司 | Drawer type clearance adjusting device, crawling crane and clearance adjusting method |
| CN105711665A (en) * | 2016-05-11 | 2016-06-29 | 徐工集团工程机械股份有限公司 | Horizontal clearance adjustment device for crawler base |
| CN211139482U (en) * | 2019-12-13 | 2020-07-31 | 三一重机有限公司 | Track guard plate and excavator |
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