JP3507231B2 - Crawler type traveling device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crawler type traveling device suitably used for a track-type vehicle such as a hydraulic excavator or a hydraulic crane.

[0002]

2. Description of the Related Art An undercarriage of a construction machine such as a hydraulic excavator or a hydraulic crane is usually equipped with a crawler type traveling device for traveling on an unconstructed construction site or the like.

Such a crawler type traveling device is generally a track frame having side frames on both sides of a center frame, drive wheels and idle wheels provided on each side frame of the track frame, and the drive wheels and idle wheels. It consists of a crawler belt wound between the wheels and the sprocket provided on the drive wheel rotates while meshing with the crawler belt,
The crawler belt is orbitally driven between the drive wheel and the idler wheel to drive the lower traveling body.

By the way, the crawler belt which constitutes the crawler type traveling device is wound with a proper tension between the drive wheel and the idler wheel, but when the crawler belt is excessively loosened while the lower traveling body is traveling, Would cause the crawler belt to vibrate greatly and interfere with the side frame or the like.

Therefore, in the prior art, for example, the actual flat blade 4-1.
As disclosed in Japanese Patent Publication No. 00973, there is known a crawler type traveling device in which upper rolling wheels are provided between a side frame and a crawler belt. In such a crawler belt type traveling device having upper wheels, it is possible to prevent the crawler belt from interfering with the side frame or the like by always supporting the crawler belt from the lower surface side during traveling.

[0006]

However, since the upper wheel according to the prior art as described above is composed of a plurality of constituent parts, the number of parts and the number of assembling steps of the entire crawler type traveling device are increased, and the manufacturing cost is increased. There is a problem that it becomes bulky.

The present invention has been made in view of the problems of the prior art as described above, and it is possible to reliably reduce the noise due to the collision between the orbiting crawler belt and the side frame and the like with a simple structure. It is an object of the present invention to provide a crawler type traveling device that is made possible.

[0008]

In order to solve the above problems, the present invention provides a track frame having side frames on both left and right sides of a center frame, and front and rear ends of the side frame serving as brackets. A drive wheel provided on one bracket of the side frames of the track frame and an idle wheel provided on the other bracket,
And wound around the track between the drive wheel and the idler wheel, in fulfillment band
Between the idler wheel and the side frame for applying tension
It is applied to a crawler type traveling device including a crawler belt tension adjusting device provided in .

The feature of the structure adopted by the invention of claim 1 is to prevent the crawler belt from interfering with the side frame when looseness occurs between the drive wheel and the idler wheel.
Because the the bracket of the side frame, the provided footwear strip receiving member located in the vicinity of the drive wheel, between the member and the bracket receiving fulfillment band, mounting height position of the track receiving member with respect to the track There is a height position adjusting means for adjusting.

According to the above configuration, even if the crawler belt that is orbitally driven between the drive wheel and the idler wheel is loosened between the drive wheel and the idler wheel, the crawler belt is located near the drive wheel. against the side frame or the like by coming into contact with the crawler belt receiving member
From interfering Te can be prevented. Then, even if the crawler belt receiving member is worn by the contact with the track, by adjusting the mounting height position of the track receiving member with respect to the track by the height position adjusting means, without frequent replacement of the crawler belt receiving member Since it can be kept in contact with the crawler belt at all times, noise due to collision between the crawler belt and the crawler belt receiving member can be constantly reduced.

In the invention according to claim 2, the height position adjusting means includes a guide bracket provided on an upper surface of a bracket of the side frame, and the crawler belt receiving member is fixed and guided by the guide bracket in the front-rear direction. It consists of a guide block that moves to.

According to the above construction, the guide block moves in the front-rear direction while being guided by the guide bracket, whereby the mounting height position of the crawler belt receiving member fixed to the guide block can be adjusted. The structure of the crawler belt receiving member can be simplified.

Further, according to the invention of claim 3, a moving screw for moving the guide block with respect to the guide bracket is provided between the guide bracket and the guide block.

According to the above construction, by moving the guide block with respect to the guide bracket with the moving screw, the crawler belt receiving member fixed to the guide block can be moved toward or away from the crawler belt. Therefore, the work of attaching the crawler belt receiving member to the position where it abuts on the crawler belt, and the work of removing the crawler belt receiving member that has been bitten on the lower surface side of the crawler belt from the crawler belt can be easily performed.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments (examples) of the present invention will be described in detail below with reference to FIGS.

In FIG. 1, 1 is a lower traveling body of the hydraulic excavator, 2 is a track frame which constitutes the lower traveling body 1, respectively. The track frame 2 is a center frame 3 and a central upper surface of the center frame 3. And a pair of side frames 5 (only one of which is shown) extending forward and rearward, which are attached to the tip ends of the legs 3A and 3A and are located on the left and right sides of the center frame 3, respectively. It is roughly composed of.

A drive wheel bracket 6 is provided on one end side of the side frame 5, and an idle wheel bracket 7 is provided on the other end side.

As shown in FIG. 2, the drive wheel bracket 6 is fixed to one end of the side frame 5 through a rectangular reinforcing plate 8 by welding or the like and a mounting plate 6A to which a drive wheel 9 to be described later is attached. , And a flange 6B that covers the outer peripheral side of the mounting plate 6A over the entire circumference. The flange 6B has a circular shape as a whole on the rear side and has a narrower width on the front side and is fixed to the mounting plate 6A.

Reference numeral 9 denotes a drive wheel located on one end side of the side frame 5 and attached to the drive wheel bracket 6, and the drive wheel 9 includes a traveling motor (not shown), a speed reducer 9A, a sprocket 9B and the like. Has become. And the drive wheels 9
The output of the traveling motor is decelerated by the speed reducer 9A and the sprocket 9B is rotationally driven, so that the crawler belt 13 wound between the idler wheel 10 described later is orbitally driven.

Reference numeral 10 denotes an idler wheel located on the other end side of the side frame 5 and attached to the idler wheel bracket 7. The idler wheel 10 is provided in the side frame 5 and is a crawler belt tension adjusting device (not shown). Crawler belt 13 that is constantly urged by the drive wheel 9 in a direction away from the drive wheel 9 and is wound between the drive wheel 9 and
It is designed to give proper tension to.

Reference numerals 11 and 11 denote two upper rollers rotatably provided on the upper surface side of the side frame 5. Each upper roller 11 supports the crawler belt 13 from below and supports the crawler belt 13.
Are prevented from contacting the side frame 5. 1
, 12 are a plurality of lower rollers arranged in a row on the lower surface side of the side frame 5, and each of the lower rollers 12 is a drive wheel 9
And the side frame 5 on the track 13 together with the idler wheel 10.
Is to support.

Reference numeral 13 denotes a crawler belt wound around the drive wheel 9, the idler wheel 10, each upper roller 11 and each lower roller 12, and the crawler belt 13 has a plurality of tracks as shown in FIGS. 2 to 4. Link 14A is pin 14C via bush 14B
Endless track link 1 that is sequentially connected by
4 and a plurality of plate-shaped shoes 1 fixed to each link 14A of the track link 14 via bolts (not shown).
5 and the bush 14 of the track link 14
B meshes with the sprocket 9B of the drive wheel 9.

Then, the sprocket 9B of the drive wheel 9 is driven to rotate, and the sprocket 9B is moved to the track link 14
Crawler belt 1 by sequentially meshing with each bush 14B of
3 is orbitally driven on the drive wheel 9, the idler wheel 10, the upper roller 11 and the lower roller 12, so that the lower traveling body 1 travels.

Reference numeral 16 denotes a skid block which is located near the drive wheel 9 and is provided between the side frame 5 and the crawler belt 13 as a crawler belt receiving member.
6 abuts against the lower surface side of the crawler belt 13 (track link 14) and supports it, so that when the crawler belt 13 is excessively loosened while being orbitally driven, the crawler belt 13 becomes the side frame 5 or the like. It is to prevent interference.

Reference numeral 17 is a height position adjusting means provided between the side frame 5 and the skid block 16 for adjusting the mounting height position of the skid block 16 to the crawler belt 13. The height position adjusting means 17 is , A guide bracket 18, a guide block 22 and a moving screw 27 which will be described later.
Etc.

Reference numeral 18 denotes a guide bracket disposed on the flange 6B of the drive wheel bracket 6 constituting the side frame 5, and the guide bracket 18 is made of, for example, a U-shaped steel plate material, Support leg 18A,
18A and a mounting plate portion 18B located between the support leg portions 18A. Then, the mounting plate portion 18B faces the flange 6B substantially in parallel by welding the tip end side of each support leg portion 18A to the upper surface of the flange 6B of the drive wheel bracket 6.

Here, the flange 6 of the drive wheel bracket 6
The upper surface of B is inclined upward by an angle a with respect to the horizontal direction, and the guide bracket 18 fixed to the flange portion 6B is also inclined upward by an angle a with respect to the horizontal direction. Further, one of the support legs 18A on the drive wheel 9 side has a bolt insertion hole 1 through which the moving screw 27 is inserted.
9 and a screw hole 20 which is located near the bolt insertion hole 19 and in which a female screw is screwed.

Reference numeral 21 denotes a mounting plate portion 1 of the guide bracket 18.
8B, the guide groove 21 is formed as a rectangular long groove extending in the longitudinal direction of the mounting plate portion 18B as shown in FIG. And the guide groove 2
An engaging protrusion 23A of an upper guide block 23, which will be described later, is slidably engaged with the inside of the inside 1.

The skid block 16 is fixed at 22,
The guide block 22 is a guide block that is movable in the front-rear direction while being guided by the guide bracket 18. The guide block 22 is, as shown in FIGS. 4 and 5, located above the mounting plate portion 18B that constitutes the guide bracket 18. The guide block 23, the lower guide block 24 located below the mounting plate portion 18B, and the guide block fixing bolts 25, 25 for fixing the upper guide block 23 and the lower guide block 24 to the guide bracket 18. It consists of and.

Here, the upper guide block 23 is formed in a substantially flat plate shape, and an engaging convex portion slidably engaged with the guide groove 21 formed in the mounting plate portion 18B of the guide bracket 18 on the lower surface side thereof. 23A is projected. A bolt insertion hole 23B into which each guide block fixing bolt 25 is inserted is formed in the engagement protrusion 23A.

The lower guide block 24 is formed in a substantially rectangular parallelepiped shape, and has a mounting plate portion 18B for the guide bracket 18.
And the flange 6B of the drive wheel bracket 6 are slidable. Then, the skid block 16 is fixed to the side surface portion of the lower guide block 24 protruding to the sprocket 9B side via two skid block fixing bolts 26, 26. The skid block 16
A chamfering process is performed on the upper end side of the side surface of the lower guide block 24 to which is fixed so as to prevent the lower guide block 24 from interfering with the track link 14 of the crawler belt 13.

Reference numeral 24A denotes a screw hole which penetrates the lower guide block 24 in the front-rear direction and has a female screw threaded therein.
A is formed coaxially with the bolt insertion hole 19 formed in the support leg portion 18A of the guide bracket 18, and the moving screw 27 inserted into the bolt insertion hole 19 is screwed into the bolt.

Then, the guide block 22 attaches the mounting plate portion 18B of the guide bracket 18 to the upper guide block 2
3 and the lower guide block 24, and each guide block fixing bolt 25 inserted into the bolt insertion hole 23B of the upper guide block 23 is screwed into the lower guide block 24, whereby the engagement protrusion of the upper guide block 23 is increased. The portion 23A is attached to the guide bracket 18 in a state of being engaged with the guide groove 21 of the guide bracket 18.

[0034] At this time, in a state in which rice each guide block fixing bolt 25 provisionally tightened, the guide block 22 while being regulated by the guide groove 21 can slide on the flange 6B of the drive wheel bracket 6 with the skid block 16 It is like this. In this case, since the upper surface of the flange 6B is inclined upward by the angle a with respect to the horizontal direction, the guide block 22 gradually approaches the crawler belt 13 while approaching the drive wheel 9, and is separated from the drive wheel 9. By doing so, the crawler belt 13 is gradually separated from the crawler belt 13.

Then, each guide block fixing bolt 2
In a state where 5 was tighten, guide block 22 is fixed to the guide bracket 18, thereby, the skid block 16 which is fixed to the guide block 22 is fixed to the positioning state with respect to the track 13.

Reference numeral 27 denotes a moving screw which constitutes the height position adjusting means 17 together with the guide bracket 18 and the guide block 22. As the moving screw 27, for example, a long bolt having a full thread is applied. The moving screw 27 is inserted into the bolt insertion hole 19 formed in the support leg portion 18A of the guide bracket 18 in the state where the guide block 22 is attached to the guide bracket 18, and is formed in the lower guide block 24. Screw hole 24A
Screwed into.

[0037] Thus, the direction guide block 22 screwing in the state not fixed to the guide bracket 18 (state each guide block fixing bolts 25 are fit provisionally tightening), the movement screw 27 into the screw hole 24A When the guide block 22 is rotated in the direction of, the guide block 22 is moved in the direction in which the guide block 22 gradually approaches the crawler belt 13 while being regulated by the guide groove 21, thereby adjusting the height position of the skid block 16 fixed to the guide block 22 relative to the crawler belt 13. It can be carried out.

The present embodiment has the above-mentioned configuration,
The crawler belt 13 is wound between the drive wheel 9, the idler wheel 10, the upper roller 11 and the lower roller 12, and is provided between the idler wheel 10 and the side frame 5 to adjust the crawler belt tension (not shown). Gives a proper tension. In this state, the sprocket 9B of the drive wheel 9 is rotationally driven, and the sprocket 9B sequentially meshes with each bush 14B of the track link 14, so that the crawler belt 13 is driven by the drive wheel 9, the idler wheel 10, the upper roller 11, and the lower roller 11. Side roller 1
The undercarriage 1 is driven to rotate on the upper part 2 and travels.

At this time, when the crawler belt 13 is excessively loosened while being rotated, the skid block 16 is
In order to prevent the crawler belt 13 from interfering with the side frame 5 and the like, it is necessary to attach the crawler belt 13 to the lower surface side of the crawler belt 13 (track link 14) so as to support it.

Therefore, the crawler belt 13 of the skid block 16 for preventing the crawler belt 13 from interfering with the side frame 5 and the like.
The mounting work for the will be described below.

First, the skid block 1 is attached to the lower guide block 24 through the skid block fixing bolts 26.
Secure 6 securely.

Next, the lower guide block 24 is inserted between the mounting plate portion 18B of the guide bracket 18 and the flange 6B of the drive wheel bracket 6, and the upper guide block 23 is mounted on the mounting plate portion 18B of the guide bracket 18. The engaging protrusion 23A is engaged with the guide groove 21.

Then, each guide block fixing bolt 25 inserted into the bolt insertion hole 23 B of the upper guide block 23 is screwed into the lower guide block 24,
Attach the guide block 22 to the guide bracket 18,
Each guide block fixing bolts 25 keep rice provisionally tightened.

In this state, the moving screw 27 is inserted into the bolt insertion hole 1 formed in the support leg portion 18A of the guide bracket 18.
9 and is screwed into the screw hole 24A formed in the lower guide block 24.

At this time, the skid block 16 fixed to the guide block 22 has the crawler belt 13 as shown in FIG.
Since it is separated from the lower surface side of the (track link 14), the moving screw 27 is rotated in a direction to be screwed into the screw hole 24A of the lower guide block 24. As a result, the guide block 22 is regulated by the guide groove 21, and the crawler belt 1
3, the skid block 16 comes into contact with the lower surface side of the crawler belt 13 as shown in FIG.

In this way, the skid block 16
There in contact with a position on the lower surface side of the track 13, by attaching fastening each guide block fixing bolt 25, the guide block 22 is securely fixed to the guide bracket 18, a positioning state skid block 16 relative to the track 13 Can be fixed.

As described above, the skid block 16 is fixed to the crawler belt 13 in a positioning state, and the skid block 16 is always brought into contact with the lower surface side of the crawler belt 13, so that the crawler belt 13 is excessively rotated while being orbitally driven. In addition to preventing the crawler belt 13 from interfering with the side frame 5 when loosening occurs, the crawler belt 13 and the skid block 1 can be prevented.
It is possible to reliably prevent a loud noise from being generated due to a heavy collision with the vehicle.

The skid block 16 is attached to the track 1
If the guide block fixing bolts 25 are loosened once, the moving screw 27 is rotated in a direction to be screwed into the screw hole 24A of the lower guide block 24 when the guide block fixing bolts 25 are loosened. Let As a result, the guide block 22 is accompanied by the skid block 16 and the track 1
3, the skid block 16 can be brought into contact with the lower surface side of the crawler belt 13 again.

Thus, even if the skid block 16 wears, the height position adjusting means 17 brings the mounting height position of the skid block 16 closer to the crawler belt 13 so that the worn skid block 16 can be replaced without replacement. The crawler belt 13 can be always brought into contact with the lower surface side of the crawler belt 1,
The noise caused by the collision between the skid block 3 and the skid block 16 can be constantly reduced.

Here, by making the mounting height position of the skid block 16 adjustable, even if the skid block 16 that is always in contact with the crawler belt 13 is worn, the mounting height position of the skid block 16 is fixed to the crawler belt 13. By bringing them close to each other, the skid block 16 can be always brought into contact with the lower surface side of the crawler belt 13, but an adjusting range of the mounting height position of the skid block 16 by the height position adjusting means 17 (movable range of the guide block 22). Is determined by the groove length of the guide groove 21 formed in the guide bracket 18, so that as shown in FIG.
Reaches the tip of the guide groove 21, and the skid block 16
When the vehicle comes closest to the drive wheel 9, the worn skid block 16 needs to be replaced.

Therefore, the replacement work when the skid block 16 of this embodiment is worn will be described below.

First, when removing the worn skid block 16, each guide block fixing bolt 25 is slightly loosened, and the moving screw 27 is pulled out from the screw hole 24A of the lower guide block 24.

Then, as shown in FIG.
By being screwed into the screw hole 20 formed in the support leg portion 18A of the guide bracket 18, the guide block 22 is pressed by the tip end portion of the moving screw 27 in the direction away from the sprocket 9B. Thereby, even if the skid block 16 is biting into the lower surface side of the crawler belt 13, the skid block 16 can be reliably separated from the crawler belt 13.

Therefore, when removing the skid block 16 which has bitten into the lower surface of the crawler belt 13, it is possible to eliminate the troublesome work of lifting the crawler belt 13 by using, for example, a jack, and the workability when replacing the skid block 16 is eliminated. Can be significantly improved.

After removing the skid block 16 from the lower surface side of the crawler belt 13 in this manner, the guide block fixing bolts 25 are removed to remove the upper guide block 23 and the lower guide block 24 from the guide bracket 18. The new skid block 16 is fixed to the lower guide block 24.

Then, the work of replacing the skid block 16 is completed by performing the work of mounting the skid block 16 described above.

Thus, according to this embodiment, the height position adjusting means 17 including the guide bracket 18, the guide block 22 and the moving screw 27 is provided between the flange 6B of the drive wheel bracket 6 and the skid block 16. ,
By moving the guide block 22 with respect to the guide bracket 18 with the moving screw 27, the skid block 16 can be brought close to the crawler belt 13 together with the guide block 22, and the mounting height position of the skid block 16 with respect to the crawler belt 13 can be adjusted. Because of the construction, even if the skid block 16 is worn,
Can be easily moved to a position where it comes into contact with the lower surface side of the crawler belt 13.

Therefore, the skid block 16 is attached to the track 1
3 can be kept in constant contact with the lower surface side of the crawler belt 13
It is possible to reliably prevent a large noise from being generated by colliding with the side frame 5 and the skid block 16 while the vehicle orbits.

Further, it is not necessary to replace the skid block 16 every time it wears, the life of the skid block 16 can be extended, and the skid block 16 can be extended.
The number of replacement work can be reduced.

Further, when replacing the worn skid block 16, the guide block 22 is moved by the moving screw 27.
Is pressed in a direction away from the sprocket 9B, so that the skid block 1 biting into the lower surface side of the crawler belt 13 is pressed.
6 can be reliably disengaged from the crawler belt 13. Therefore, for example, a complicated work of lifting the crawler belt 13 by using a jack or the like can be dispensed with, and workability at the time of exchanging the skid block 16 can be significantly improved.

In the embodiment, on the flange 6B of the drive wheel bracket 6 inclined upward with respect to the horizontal direction,
Guide bracket 18 constituting the height position adjusting means 17
However, the present invention is not limited to this. For example, an inclined plate is provided upward on the upper surface of a horizontal flange, and the guide bracket 18 is fixed on the upper surface of the inclined plate. Good.

Further, in the embodiment, the guide bracket 18
The guide groove 21 is provided in the guide groove 21, and the engagement convex portion 23A of the upper guide block 23 is engaged with the guide groove 21. However, the present invention is not limited to this. It may be configured to engage the side surface of the bracket or the like.

Further, in the embodiment, the crawler type traveling device used for the lower traveling body of the hydraulic excavator has been described as an example, but the present invention is not limited to this, and another tracked vehicle such as a hydraulic crane is used. It can also be applied to the undercarriage of.

[0064]

As described in detail above, according to the invention of claim 1 , a tension is applied to the crawler belt between the idler wheel and the side frame.
A crawler belt tension adjustment device is provided for application, near the drive wheels
At the position, the side frame bracket and the track receiving part
The timber is provided, the mounting height position relative to the track of the track receiving member, and configured to adjust the height position adjusting means
Therefore , even when the crawler belt receiving member is worn, the height adjusting means adjusts the mounting height position of the crawler belt receiving member with respect to the crawler belt so that the crawler belt receiving member is located near the drive wheel at the lower surface side of the crawler belt. Can be always brought into contact with. Therefore, even if slack between the crawler belt drive wheel and idler wheels driven circling, prevent interference with the side frame such in vicinity of the driving wheel by the fulfillment zone comes into contact with the crawler belt receiving member it can. Moreover, the track receiving member it by the bringing into contact at all times on the lower surface side of the track, the noise due to collision between the crawler and the crawler receiving member can be reliably reduced. Also, since the track receiving member need not be replaced each time the wear on that can extend the life of the crawler belt receiving member, it is possible to reduce the number of replacement of the crawler belt receiving member.

According to the second aspect of the invention, the guide block to which the crawler belt receiving member is fixed moves in the front-rear direction on the bracket while being guided by the guide bracket. By fixing the guide block to the guide bracket at the abutting position, the mounting height position of the crawler belt receiving member with respect to the crawler belt can be easily adjusted with a simple structure.

Further, according to the invention of claim 3, by moving the guide block with respect to the guide bracket by the moving screw, the crawler belt receiving member fixed to the guide block is moved toward or away from the crawler belt. Since it is configured to move, the work of attaching the crawler belt receiving member to the position where it abuts on the crawler belt can be performed easily and reliably. Further, for example, when exchanging the crawler belt receiving member, when removing the crawler belt receiving member that has been bitten on the lower surface side of the crawler belt from the crawler belt, it is not necessary to perform a complicated work such as lifting the crawler belt by using a jack or the like. Therefore, the work of exchanging the crawler belt receiving member can be efficiently performed.

[Brief description of drawings]

FIG. 1 is an external view showing a lower traveling body to which a crawler type traveling device according to an embodiment of the present invention is applied.

FIG. 2 is a partially enlarged view showing a crawler belt, a drive wheel, a skid block and the like in FIG. 1 in an enlarged manner.

FIG. 3 is an enlarged view of a main part showing a skid block, a height position adjusting means and the like in FIG. 2 in an enlarged manner.

FIG. 4 is a vertical sectional view as seen from the direction of arrows IV-IV in FIG.

5 is a cross-sectional view as seen from the direction of arrows VV in FIG.

FIG. 6 is an enlarged view of a main part of the same position as FIG. 3 showing a state where the skid block is in contact with the lower surface of the crawler belt.

FIG. 7 is an enlarged view of an essential part at the same position as in FIG. 3, showing a state where the skid block is closest to the crawler belt.

FIG. 8 is a sectional view similar to FIG. 5, showing a state in which the skid block is separated from the crawler belt.

[Explanation of symbols]

2 track frames 3 center frame 5 side frames 6 Drive wheel bracket (bracket) 7 Idler bracket (bracket) 13 tracks 16 skid block (track receiving member) 17 Height position adjustment means 18 Guide bracket 22 Guide block 27 Moving screw

Claims (3)

(57) [Claims] 1. A track frame having side frames on both left and right sides of a center frame, wherein front and rear ends of the side frame are brackets, drive wheels provided on one of the side frames of the track frame, and The idler wheel provided on the other bracket, the crawler belt wound between the drive wheel and the idler wheel, and the tension on the crawler belt.
Is installed between the idler wheel and the side frame to provide
In crawler traveling device comprising a vignetting the track tensioning device, order to prevent interference with the side frame when the track has occurred slack between the drive wheel and the idler wheel, front
The brackets of the serial side frame, the provided footwear strip receiving member located in the vicinity of the drive wheel, between the member and the bracket receiving fulfillment zone, to adjust the mounting height position of the track receiving member with respect to the track A crawler type traveling device characterized in that height position adjusting means is provided. 2. The height position adjusting means includes: a guide bracket provided on an upper surface of a bracket of the side frame; and a guide block to which the crawler belt receiving member is fixed and which is guided by the guide bracket and moves in the front-rear direction. The crawler type traveling device according to claim 1, which is configured. 3. The crawler type traveling device according to claim 2, wherein a moving screw for moving the guide block with respect to the guide bracket is provided between the guide bracket and the guide block.