KR200449362Y1

KR200449362Y1 - Grader for Horse Racing Track

Info

Publication number: KR200449362Y1
Application number: KR2020090016633U
Authority: KR
Inventors: 권기석
Original assignee: 한국마사회
Priority date: 2009-12-21
Filing date: 2009-12-21
Publication date: 2010-07-05

Abstract

The present invention relates to a horse raceway thickness adjuster, and is equipped with a scraper that can lay a cushion layer on the front of the blade to flatten the cushion layer of the horse race track to a certain thickness so that the flattening operation proceeds after the cushion layer is laid. By doing so, the cushion layer of the racetrack can be flattened more uniformly to a certain thickness, and by adjusting the height of the wheel part or the support frame to adjust the height of the blade, the thickness of the cushion layer of the racetrack as needed. It is adjustable, and even when the blade wears, the height adjustment provides a horse race track thickness adjuster that can be used continuously without changing the blade, thereby reducing maintenance costs.

Dressing, Raceway, Cushion Layer, Scraper

Description

Grain Racer Thickness Adjuster {Grader for Horse Racing Track}

The present invention relates to a horse raceway thickness regulator. More specifically, by mounting a scraper to cover the cushion layer in front of the blade to flatten the cushion layer of the horse race track to a certain thickness, the flattening operation proceeds after opening the cushion layer, thereby making the cushion layer of the horse race track. It can be flattened more uniformly to a certain thickness, and configured to adjust the height of the blade by adjusting the height of the wheel part or the support frame, thereby adjusting the thickness of the cushion layer of the horse race track as needed, and when the blade wears Edo height adjustment is a horse raceway thickness adjuster that can be used continuously without changing the blade to reduce the maintenance cost.

Horse racing is a game in which two or more horses are run under certain conditions to compete against each other. Horse racing has been around for a long time, and recently it has been widely popular all over the world and occupying its status as a healthy leisure activity.

In general, a racetrack of horse races is constructed in such a way that a ground layer of about 10 cm thick is chopped on a flat gravel layer and a cushion layer of about 7 cm thick is formed on the upper layer. The ground layer is generally formed hard using masato or sansato, and the cushion layer is formed of a coarse structure using sand so as to alleviate the impact when the horse is running.

The horse racing raceway configured as described above has a very important influence on the horse race wins and losses, and the horse racing raceway is thoroughly managed to maintain a constant state at all times.

This raceway management is carried out not only during the race, but also during the race, which is not normally carried out. In general, during the race, a uniform cushion layer is eliminated by eliminating the footprint of the horse formed in the cushion layer at each race. The raceway is stopped to form a (地), and while the race is not in progress, the thickness of the cushion layer is periodically checked and flattened to a constant thickness. In addition, various race track management tasks are performed, such as opening a race track so that the race track does not freeze depending on the weather. In particular, a race track management task is frequently performed for horse driving even on a day when a race race is not held.

Race track management work according to the prior art is a situation that is carried out by a manual method using a general construction equipment because no separate equipment for the raceway management has been developed, there was a problem that requires a lot of time and manpower.

Recently, there is a case in which separate equipment has been developed for easier management of the raceway, but these equipments are still lacking in technical level, and thus, more research and development is required.

The present invention was devised to solve the problems of the prior art, and an object of the present invention is to mount a cushion layer by attaching a scraper that can lay a cushion layer on the front of the blade to flatten the cushion layer of the horse race track to a certain thickness. After the flattening operation is configured to proceed, it is possible to flatten the cushion layer of the racetrack to a uniform thickness more uniformly, and to provide a horse raceway thickness adjuster that can perform the smoothing operation more smoothly and easily.

Another object of the present invention is to adjust the height of the wheel or the support frame to adjust the height of the blade, by adjusting the thickness of the cushion layer of the horse race track as needed, and through the height adjustment even when the blade wear It provides a racetrack thickness adjuster that can be used continuously without changing blades, thereby reducing maintenance costs.

The present invention is a dressing raceway thickness adjuster for flattening the cushion layer of the dressing raceway with a cushion layer formed on the upper layer of the ground layer to a constant thickness, the support frame formed so as to be towed by a transport vehicle; A wheel unit coupled to the support frame such that an outer circumferential surface may rotate along an upper surface of the ground layer; A scraper coupled to the front side of the support frame such that a lower end surface is inserted into the cushion layer and formed to cover the cushion layer according to the movement of the support frame; And a blade coupled to the support frame so as to elongate in a direction inclined with respect to the traveling direction, positioned behind the scraper, and having a lower end spaced apart from the lower end of the wheel part, by the transport vehicle. The trailing raceway thickness adjuster is characterized by flattening the cushion layer to a constant thickness by being pulled out by the bottom surface of the blade.

In this case, the support frame includes two main frames arranged in parallel along the travel direction; And front and rear cross frames disposed in parallel in a direction crossing the main frame and coupled to the front and rear of the main frame, respectively, wherein the wheel parts are mounted to the front and rear cross frames, respectively, and the blades It can be mounted on the main frame.

In addition, a plurality of scrapers protrude downward from the lower portion of the front cross frame to be spaced apart from each other to form at least one row, and the scrapers constituting each row may be disposed to be offset from each other along the direction of travel with the scrapers of other adjacent rows. Can be.

In addition, the scraper may be arranged in a rectangular plate shape such that both sides face at right angles in the advancing direction.

In addition, the front cross frame may be bolted to the main frame by being located under the main frame.

In addition, the wheel portion is a disk-shaped wheel that rotates along the upper surface of the ground layer is coupled to the rotating shaft through the center; A fixing plate coupled to both ends of the rotation shaft and mounted to the support frame; And a height adjusting unit mounted on both sides of the fixing plate so as to adjust a relative height of the rotating shaft relative to the fixing plate, and the height of the support frame can be adjusted from an upper surface of the ground layer by the operation of the height adjusting unit. have.

In addition, the height adjustment unit has a screw hole formed on one side fixed bracket coupled to the side of the fixing plate; And a height adjusting rod which is screwed to the screw hole and one end thereof is coupled to the rotating shaft, and the height of the rotating shaft is moved relative to the vertical plate in the state of being coupled to the fixed plate by the rotation of the height adjusting rod. Can be.

In addition, the wheel portion may be mounted to each of the two end portions of the front cross frame in the front and rear direction, respectively, and may be mounted to each one of both side ends of the rear cross frame.

In addition, the wheel portion mounted on the front cross frame may be coupled to the fixed plate rotatably with respect to the front cross frame so that the rotation axis of the wheel portion can be adjusted in the direction of travel.

In addition, the wheel portion mounted to the front cross frame and the wheel portion mounted to the rear cross frame may be disposed so as not to be located on the same straight line along the traveling direction.

In addition, the back of the support frame may be coupled detachably weight.

According to the present invention, by equipping the front of the blade for flattening the cushion layer of the horse race track to a certain thickness by mounting a scraper that can lay the cushion layer, the cushion layer of the horse race track by the flattening operation is configured to proceed. It can be flattened to a uniform thickness more uniformly, and also has an effect that can be performed more smoothly and easily.

In addition, by adjusting the height of the wheels or the support frame to adjust the height of the blade, it is possible to adjust the thickness of the cushion layer of the dressing race track as needed, even when the blade wears through the height adjustment without replacing the blade It can be used continuously, reducing maintenance costs.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a perspective view schematically showing a horse raceway thickness adjuster according to an embodiment of the present invention, Figure 2 is a plan view schematically showing a horse raceway thickness adjuster according to an embodiment of the present invention, Figure 3 Is a side view schematically showing a horse race track thickness adjuster according to an embodiment of the present invention.

First, referring to the structure of the horse race track, the horse race track is chopped the ground layer (E2) using Masato and the like on the gravel layer (E1) formed flat as described in the prior art, and then sand on the upper layer of the ground layer (E2). It is configured in a manner to form a cushion layer (E3) using. Cushion layer (E3) for cushioning the impact is generally formed to maintain a constant thickness of about 7cm, which can be changed in various ways depending on the use conditions.

The horse racing raceway thickness adjuster according to an embodiment of the present invention is a device for flattening the cushion layer of the raceway to a constant thickness, and is towed and moved by a separate transport vehicle such as a tractor, and the thickness of the raceway cushion layer is adjusted to an appropriate level. And to maintain control. Such a thickness adjuster includes a support frame 100, a wheel part 200, a scraper 300, and a blade 400 according to an embodiment of the present invention.

The support frame 100 forms the basic structure of the device and is formed to be towed by a transport vehicle. That is, a separate hook ring 121 is formed in front of the support frame 100, one end of the towing wire (W) is coupled to the hook ring 121, the transport vehicle is a towing wire (W) The support frame 100 is towed in such a manner as to tow.

As shown in FIG. 1, the support frame 100 includes two main frames 110 arranged in parallel along a traction propagation direction, and parallel to each other in a direction crossing the main frame 110. It may be configured to include a front cross frame 120 and a rear cross frame 130 coupled to the front and rear, respectively. In this case, the front cross frame 120 may be formed in a lattice structure in which the horizontal member and the vertical member cross each other so that the wheel part 200 and the scraper 300, which will be described later, may be mounted, and the rear cross frame 130 may be It may be formed of one horizontal member. The structure of the support frame 100 has been described as an example and can be changed to various structures.

The wheel part 200 is coupled to the support frame 100 so that the outer circumferential surface may rotate along the upper surface of the ground layer E2 to perform a function of smoothing the traction movement of the support frame 100. In addition, the wheel part 200 performs a function of supporting the support frame 100 from the ground layer E2 in addition to the above function. Therefore, the support frame 100 is tractionally moved by the wheel part 200 in a supported state spaced apart from the ground layer E2 by the corresponding height.

According to this structure, since the load transmitted to the wheel unit 200 through the support frame 100 is all transmitted to the ground layer E2, the wheel unit 200 is the support frame 100 according to the embodiment of the present invention. It would be desirable to have a plurality mounted thereon. That is, since the load of the entire apparatus transmitted through the support frame 100 is distributed by the number of the wheel parts 200 and transmitted to the ground layer E2, the wheel layers 200 are transferred to the ground layer E2 through the respective wheel parts 200. It is preferable to mount a plurality of wheels 200 to reduce the transmitted load to protect the ground layer (E2). Therefore, as shown in FIGS. 1 and 2, the wheel part 200 according to the exemplary embodiment of the present invention is mounted to each of the two end portions of the front cross frame 120 in the front and rear directions, respectively, and the rear cross frame 130. 6 pieces are installed in a way that one is installed at each end of each side).

As described above, when a plurality of wheel parts 200 are mounted, the ground layer E2 is not only protected as described above, and the wheel part 200 is not press-fitted into the ground layer E2 so that the upper surface of the ground layer E2 may be removed. Can be moved horizontally. Accordingly, since the height of the support frame 100 and the blade 400 to be described later is also maintained in a horizontal state and moved, it is possible to flatten the cushion layer E3 to a certain thickness more accurately and uniformly.

Scraper 300 is coupled to the front side of the support frame 100 so that the bottom surface is inserted into the cushion layer (E3) is configured to cover the cushion layer (E3) in accordance with the traction movement of the support frame (100). In this case, as shown in FIGS. 1 and 2, the scrapers 300 may be disposed to be spaced apart from each other so as to protrude downward from the lower portion of the front cross frame 120 to form at least one or more rows in a direction perpendicular to the traveling direction. . At this time, it is preferable that the scrapers 300 forming each row are arranged to be shifted from each other along the advancing direction with the scrapers 300 in other adjacent rows. In addition, the scraper 300 is formed in a rectangular plate shape, as shown in Figure 1 may be disposed so that both sides face in a direction perpendicular to the travel direction, by this shape is more than the earthwork work on the cushion layer (E3) Can be performed effectively. However, the shape of the scraper 300 is exemplary and may be changed into various shapes such as a round bar and a triangular plate.

According to this structure, the scraper 300 stirs and mixes the cushion layer E3 along a plurality of paths when the support frame 100 is towed and moved. At this time, as the distance between the scrapers 300 is narrower, the degree of mixing with respect to the cushion layer E3 increases, and when the scrapers 300 are arranged to form a plurality of rows at right angles in the travel direction, the support frame 100 is provided. As this moves, since the cushion layer E3 may be sequentially released by the scraper 300 forming each row, the degree of mixing of the cushion layer E3 is further increased. In particular, as described above, when the scrapers 300 of other adjacent rows are arranged to be offset from each other along the traveling direction, the spacing of the scrapers 300 is reduced in structure, and thus the cushion is more densely distributed in various areas. The layer E3 can be covered.

The blade 400 is coupled to the lower part of the support frame 100, more specifically to the lower part of the main frame 110 by flattening the cushion layer E3 to a predetermined thickness as the support frame 100 is tractionally moved. do. As shown in FIG. 1, the blade 400 is disposed to have a concave surface in a plate shape formed convexly in one direction, and is formed to extend in a direction inclined with respect to the traveling direction. The blade 400 is located behind the scraper 300 and the bottom surface of the blade 400 is disposed to be spaced apart upward from the bottom surface of the wheel part 200 by a predetermined interval.

According to this structure, when the support frame 100 is tractionally moved, the cushion layer E3 is introduced and mixed by the scraper 300 mounted at the front of the support frame 100, and then the rear of the scraper 300. The cushion layer E3 is flattened to a constant thickness by the bottom surface of the blade 400 located at. That is, the cushion layer E3, which is introduced and mixed by the scraper 300, forms a non-uniform surface, and the cushion layer is uniformly scraped to a predetermined thickness by passing the non-uniform surface through the lower surface of the blade 400. (E3) is planarized. At this time, according to the height of the blade 400, more specifically, the thickness of the cushion layer (E3) is formed according to the height from the bottom surface of the wheel portion 200 to the bottom surface of the blade 400, such a cushion layer ( The thickness of E3) is possible by adjusting the height of the blade 400, which will be described later. On the other hand, the blade 400 according to an embodiment of the present invention is formed in an inclined direction with respect to the traveling direction, so that some sand of the cushion layer E3 mowed by the bottom surface of the blade 400 is a blade ( It does not accumulate in front of the 400, and flows to one end along the inclined direction, thereby allowing continuous operation.

As described above, the horse racing raceway thickness adjuster according to an embodiment of the present invention arranges the plurality of scrapers 300 in front of the blade 400 to planarize the cushion layer E3 to a predetermined thickness, thereby providing a cushion layer ( Since the planarization operation is performed in a state in which E3) is mixed, the thickness adjustment operation of the cushion layer E3 may be performed more smoothly, and the thickness of the cushion layer E3 may be more uniformly formed. That is, the thickness adjuster according to the embodiment of the present invention by first covering the cushion layer (E3) by the scraper 300 before flattening the cushion layer (E3) using the blade 400, the cushion layer (E3) first It is a structure that proceeds the planarization work continuously in a soft state.

On the other hand, the thickness adjuster according to an embodiment of the present invention is formed with a guide bar 111 in the rear of the support frame 100, as shown in Figures 1 to 3, the separate weight on the guide bar 111 The weight 112 may be configured to be insert-mounted. The weight 112 is to be selectively mounted according to the user's needs, since the weight of the support frame 100 is increased by the weight 112, the blade 400 in the vertical direction during the flattening operation Vibration can be prevented. Therefore, the weight 112 may be more usefully used depending on the state of the cushion layer E3, particularly when the cushion layer E3 is relatively hardened or hardened.

Next, look at the configuration of the wheel portion 200 according to an embodiment of the present invention in more detail.

Wheel portion 200 is mounted to the support frame 100 as described above, a plurality of rotation shaft 221 is coupled to the center through the disk-shaped wheel 220 to rotate along the upper surface of the ground layer (E2) and The fixed plate 230 mounted to the support frame 100 in a state of being coupled to both ends of the rotary shaft 221 and mounted on both sides of the fixed plate 230 to adjust the relative height of the rotary shaft 221 relative to the fixed plate 230. It may be configured to include a height adjustment unit 240. In this case, the fixing plate 230 may be directly fixed to the support frame 100, but as shown in FIGS. 1 to 3, a separate fixing frame 210 is mounted on the supporting frame 100, and the fixing frame ( The fixing plate 230 may be mounted on the 210.

That is, separate fixing frames 210 are mounted on the front cross frame 120 and the rear cross frame 130 of the support frame 100, and the fixing plate 230 is mounted on the fixing frame 210, and the fixing plate Both ends of the rotation shaft 221 are coupled to and supported by the 230. At this time, the wheel 220 is rotatably coupled around the rotation shaft 221. According to this structure, the support frame 100 can be smoothly towed through the wheel part 200 and is supported upwardly from the ground layer E2 through the wheel part 200. At this time, the height adjustment unit 240 is mounted on both sides of the fixing plate 230 is provided to adjust the relative height of the rotating shaft 221 with respect to the fixing plate 230. Therefore, the absolute height of the fixing plate 230 is changed from the cushion layer E3 by the operation of the height adjusting unit 240.

Looking in more detail, since the wheel 220 of the wheel unit 200 does not move up and down while being supported on the upper surface of the ground layer E2, the rotary shaft 221 coupled to the wheel 220 also has its upper and lower positions. Does not change. Therefore, when the relative height of the rotating shaft 221 with respect to the fixed plate 230 is changed by the height adjustment unit 240, this means that the absolute position of the fixed plate 230 is changed up and down. When operating the height adjustment unit 240 according to this principle, the absolute position of the fixed plate 230 is changed up and down, thereby changing the vertical height of the support frame 100 coupled with the fixed plate 230. . When the vertical height of the support frame 100 is changed, the height of the blade 400 coupled to the support frame 100 is also changed with the support frame 100, and eventually by the operation of the height adjustment unit 240 The height of the blade 400 may be changed.

Therefore, the thickness adjuster according to an embodiment of the present invention can easily adjust the thickness of the cushion layer E3 by adjusting the height of the blade 400 through the height adjusting unit 240 as required by the user. Structure. This means that if the bottom surface of the blade 400 is worn according to use or the wheel 220 is worn, it can still be used by adjusting the height of the blade 400 without replacing the blade 400 or the wheel 220. This is particularly useful in.

In relation to the height of the blade 400, the support frame 100 according to an embodiment of the present invention is such that the main frame 110 and the front cross frame 120 is bolted to each other by a connecting bolt (M) In this case, the front cross frame 120 is located below the main frame 110. That is, since the blade 400 is mounted on the main frame 110 and the wheel unit 200 is mounted on the front cross frame 120, the front of the main frame 110 is adjusted by adjusting the tightening state of the connecting bolt M. By adjusting the engagement position with respect to the cross frame 120 up and down, the height of the blade 400 is adjusted. Therefore, as described above, the height adjustment function of the blade 400 may be performed through the bolt coupling structure of the main frame 110 and the front cross frame 120. In addition, when the wear of the scraper 300 or the blade 400 occurs by such a coupling structure, only the corresponding frame may be partially replaced even if the support frame 100 is not completely replaced, thereby reducing the maintenance cost. Meanwhile, the bolt coupling structure may be applied between the main frame 110 and the rear cross frame 130 although not shown.

On the other hand, the wheel portion 200 is mounted to the front cross frame 120 and the rear cross frame 130, respectively, as described above, the front wheel portion 200 is mounted to the front cross frame 120 is the rotating shaft 221 It is preferable that the fixing plate 230 is rotatably coupled with respect to the front cross frame 120 or the separate fixing frame 210 so that) may be adjusted along the traveling direction, which will be described later.

Figure 4 is a side view schematically showing the height adjustment operation state of the front wheel portion of the horse racing raceway thickness adjuster according to an embodiment of the present invention, Figure 5 is a rear of the horse racing raceway thickness adjuster according to an embodiment of the present invention It is a side view which shows schematically the height adjustment operation state of a wheel part.

As shown in FIG. 4, the front wheel part 200 coupled to the front cross frame 120 of the support frame 100 inserts a separate hinge block 231 between the fixing plate 230 and the fixing frame 210. The fixing plate 230 is configured to be rotatably coupled with respect to the fixing frame 210. Therefore, the front wheel part 200 is rotatable about the axis in the vertical direction, and thus the front wheel part 200 is angle-adjusted in the traction movement direction of the support frame 100. In other words, the front wheel part 200 is oriented along the traveling direction so that the rotating shaft 221 maintains a direction perpendicular to the traveling direction, and thus the traction movement of the support frame 100 may be smoothly progressed even in a curved line. Can be.

This structure can be equally applied to the rear wheel part 200 'coupled to the rear cross frame 130, but the effect is not as large as the front wheel part 200, so the rear wheel part 200' is easy for fabrication and assembly. ) Is preferably configured in a form in which the rotating shaft 221 is fixed.

Meanwhile, the front wheel part 200 and the rear wheel part 200 'are preferably disposed not to be positioned on the same straight line along the traveling direction (see FIG. 2). By preventing the path of the wheel part 200 passing through) from overlapping, the front wheel part 200 and the rear wheel part 200 'prevent the continuous load from acting at the same point of the ground layer E2. By protecting the ground layer (E2) by preventing the compaction action of the cushion layer (E3) by the wheel portion 200 will be able to perform a flattening operation to a more uniform thickness.

Next, looking at the configuration of the above-described height adjustment unit 240 in more detail with reference to Figures 4 and 5, the height adjustment unit 240, a screw hole (not shown) is formed on one side of the fixing plate 230 It may be configured to include a fixing bracket 241 is coupled to the side, and the height adjustment rod 242 is screwed into the screw hole one end is coupled to the rotating shaft 221. At this time, a separate guide groove 232 is formed on the inner surface of the fixing plate 230 so that both ends of the rotation shaft 221 can be inserted and guided up and down. Therefore, when the height adjustment rod 242 is rotated, the height adjustment rod 242 is moved up and down linearly through the screw hole, wherein the rotating shaft 221 coupled to one end of the height adjustment rod 242 is height adjustment Moving along the guide groove 232 with the rod 242 and the relative height of the rotating shaft 221 relative to the fixed plate 230 is adjusted.

Therefore, when the height adjustment rod 242 is rotated to move upward from the fixing bracket 241, as shown in Figure 4 and 5 (a), the fixing plate 230 in the state in which the rotating shaft 221 is fixed Will move downward. As described above, when the fixing plate 230 moves downward, the support frame 100 to which the fixing plate 230 is coupled moves downward and the blade 400 coupled to the supporting frame 100 moves downward, as described above. Likewise, the thickness of the cushion layer E3 is adjusted to a lower state.

On the contrary, when the height adjustment rod 242 is rotated to move downwardly from the fixing bracket 241 as shown in FIGS. 4 and 5 (b), the fixing plate 230 is fixed in the state in which the rotating shaft 221 is fixed. Will move upward. As such, when the fixing plate 230 moves upward, the blade 400 coupled to the support frame 100 moves upward in a manner opposite to the above-described state (a), so that the thickness of the cushion layer E3 is higher. It is adjusted to the state.

The description above is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas falling within the scope of the present invention should be interpreted as being included in the scope of the present invention.

1 is a perspective view schematically showing a horse race track thickness adjuster according to an embodiment of the present invention,

Figure 2 is a plan view schematically showing a horse race track thickness adjuster according to an embodiment of the present invention,

Figure 3 is a side view schematically showing a horse race track thickness adjuster according to an embodiment of the present invention,

Figure 4 is a side view schematically showing the height adjustment operation state of the front wheel portion of the horse race track thickness adjuster according to an embodiment of the present invention,

5 is a side view schematically showing a height adjustment operation state of the rear wheel portion of the horse race track thickness adjuster according to an embodiment of the present invention.

100: support frame 110: main frame

120: front cross frame 130: rear cross frame

200: wheel portion 240: height adjustment unit

300: scraper 400: blade

Claims

In the horse racing track thickness adjuster for flattening the cushion layer of the horse racing track having a cushion layer formed on the upper layer of the ground layer to a constant thickness,

A support frame configured to be towed by the transport vehicle;

A wheel unit coupled to the support frame such that an outer circumferential surface may rotate along an upper surface of the ground layer;

A scraper coupled to the front side of the support frame such that a bottom surface is inserted into the cushion layer and formed to cover the cushion layer according to the movement of the support frame; And

A blade coupled to the support frame so as to elongate in a direction inclined with respect to the advancing direction, positioned behind the scraper, and having a lower end spaced apart from the lower end of the wheel part.

And flattening the cushion layer to a constant thickness by the bottom surface of the blade as towed by the transport vehicle,

The wheel part

A disk-shaped wheel that rotates along an upper surface of the ground layer through a rotation shaft coupled to a central portion thereof;

A fixing plate coupled to both ends of the rotation shaft and mounted to the support frame; And

Height adjusting units mounted on both sides of the fixed plate to adjust the relative height of the rotating shaft relative to the fixed plate

It includes, and the horse race track thickness adjuster, characterized in that the height of the support frame is adjusted from the ground layer top surface by the operation of the height adjustment unit.

The method of claim 1,

The support frame

Two main frames arranged in parallel along the travel direction; And

Front and rear cross frames disposed in parallel in the direction crossing the main frame and coupled to the front and rear of the main frame, respectively.

To include, The wheel portion is mounted on the front and rear cross frame, respectively, The blade raceway thickness adjuster, characterized in that mounted on the main frame.

The method of claim 2,

A plurality of scrapers are mounted downwardly protruding downward from the front cross frame to form at least one row, and the scrapers forming each row are arranged to be offset from each other along the direction of travel with the scrapers of other rows adjacent to each other. Horse raceway thickness adjuster.

The method of claim 3, wherein

The scraper is a horse race track thickness adjuster, characterized in that the two sides are arranged in a rectangular plate shape toward the perpendicular direction of the travel direction.

The method of claim 3, wherein

The front cross frame is located in the lower portion of the main frame is a horse race track thickness adjuster, characterized in that bolted to the main frame.

delete

6. The method according to any one of claims 1 to 5,

The height adjustment unit

A fixing hole formed at one side thereof and coupled to a side surface of the fixing plate; And

A height adjustment rod is screwed into the screw hole one end is coupled to the rotating shaft

It includes, and the horse race track thickness adjuster, characterized in that the height is adjusted by moving relative to the vertical axis in the state coupled to the fixed plate by the rotation of the height adjustment rod.

6. The method according to any one of claims 1 to 5,

The wheel part

A horse raceway thickness adjuster, characterized in that it is mounted to each of the two end portions of the front cross frame in the front and rear direction, respectively, and one each mounted on both side ends of the rear cross frame.

The method of claim 8,

The wheel unit mounted on the front cross frame is a horse race track thickness adjuster, characterized in that the fixed plate is rotatably coupled to the front cross frame so that the rotation axis of the wheel portion can be adjusted in the direction of travel.

The method of claim 9,

And a wheel part mounted on the front cross frame and a wheel part mounted on the rear cross frame are not disposed on the same straight line along the traveling direction.

6. The method according to any one of claims 1 to 5,

The rear raceway thickness adjuster, characterized in that the weight is detachably coupled to the rear of the support frame.