CN211625796U

CN211625796U - Preparation instrument of ice form snow racetrack

Info

Publication number: CN211625796U
Application number: CN201922483264.8U
Authority: CN
Inventors: 董文礼
Original assignee: China Sports Facilities Construction Co ltd
Current assignee: China Sports Facilities Construction Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-02
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a preparation tool of ice-shaped snow track, which has the key points of the technical proposal that the preparation tool comprises a support frame, one side of the support frame is provided with a driving shaft, both ends of the driving shaft are respectively provided with a crawler belt moving component, the support frame is provided with a driving component for driving the driving shaft to rotate, one side of the support frame, which is far away from the driving shaft, is provided with an auxiliary moving roller, a spray pipe is erected in the support frame, a plurality of spray heads are arranged below the spray pipe, and the other end of the spray pipe is connected with a water supply pipe; the crawler belt moving assembly comprises a tripod, one side of the tripod is rotatably connected with a driving belt pulley and two driven belt pulleys for supporting the snow, and a supporting crawler belt is sleeved on the driving belt pulley and the two driven belt pulleys together; the driving belt pulley is coaxially and fixedly connected with one end of the driving shaft. The utility model has the advantages that: the snow making equipment can automatically move on the snow surface, thereby reducing the physical consumption of manual operation.

Description

Preparation instrument of ice form snow racetrack

Technical Field

The utility model relates to a snow equipment field is made to the racetrack, concretely relates to preparation instrument of ice form snow racetrack.

Background

Ice snow is used for alpine skiing, super large gyrations, large gyrations and gyratory competitions for winter sports class a (winter aout, world championship, world cup) competition. Because when the sportsman skis on ordinary snow track, the snowboard can produce the snow rut on the track for the sportsman who starts to different times causes the influence on the score, so the purpose of ice form snow is exactly that snow track surface forms "ice form" that is similar to snow non-snow, thereby reduce the frictional force between slide and the snowboard, and then reduce the destruction of snowboard and snow track, make first sportsman and last sportsman on the snow track can both compete under same snow condition, embodied the fairness of match.

At present, the most common ice-like snow preparation tool in a snow factory, as shown in fig. 1, includes a frame body 6 and a water spraying pipe 15 erected along the length direction of the frame body 6, wherein a plurality of nozzles 17 are communicated with the lower surface of the water spraying pipe 15, one end of the water spraying pipe 15 is sealed, and the other end of the water spraying pipe is connected with a water supply pipe 18.

When the staff uses the snow making tool, need two people to control support body 15 simultaneously, drive support body 15 and press on the snow face, make shower nozzle 17 spun water pour into the snow face below to increase the density on snow layer surface, then two people uplift support body simultaneously and drive support body sideslip 15cm, make water pour into adjacent region. And finally, preparing the ice-like snow through the reciprocating operation of workers. In this process, the staff need operate the support body constantly, wastes time and energy.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a preparation instrument of ice form snow racetrack, its advantage is that the automatic snow face that moves of system snow equipment has been made to manual operation's physical demands has been reduced.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a preparation tool for an ice-shaped snow race track comprises a supporting frame, wherein a driving shaft is arranged on one side of the supporting frame, two crawler belt moving assemblies are respectively arranged at two ends of the driving shaft, a driving assembly for driving the driving shaft to rotate is arranged on the supporting frame, an auxiliary moving roller is arranged on one side, away from the driving shaft, of the supporting frame, a water spray pipe is erected in the supporting frame along the width direction of the supporting frame, a plurality of spray heads are arranged below the water spray pipe along the length direction of the water spray pipe, one end of the water spray pipe is sealed, and the other end of the water spray pipe is connected with a water supply pipe;

the crawler belt moving assembly comprises a tripod, one side of the tripod is rotatably connected with a driving belt pulley and two driven belt pulleys for supporting the snowfield, the axes of the driving belt pulley and the two driven belt pulleys are parallel to each other, and a supporting crawler belt is sleeved on the driving belt pulley and the two driven belt pulleys together; the driving belt pulley is coaxially and fixedly connected with one end of the driving shaft.

By adopting the technical scheme, when workers prepare the ice-shaped snow, the water supply pipe supplies water into the water spray pipe, so that water flow is sprayed out through the plurality of spray heads and drops on the snow surface, then the driving assembly drives the driving shaft to rotate, the driving shaft drives the two crawler belt moving assemblies to work, the support frame is erected on the snow surface to move at three supporting points, the driving shaft drives the driving belt pulley to rotate, further the support crawler belt is driven to rotate around the two driven belt pulleys, the contact area of the support crawler belt and the ground is increased due to the arrangement of the two driven belt pulleys, the friction force between the crawler belt moving assemblies and the snow is improved, the moving efficiency of the support frame is improved, the snow surface is poured by the water flow along with the movement of the support frame, the ice-shaped snow-like non-snow is slowly formed, and then the snow surface is more flat under the rolling of the auxiliary moving rollers, the water flow is more fully contacted with the snow layer. And through drive assembly's drive, drive annular frame automatic movement and carry out water injection work, alleviateed staff's operating pressure greatly.

The present invention may be further configured in a preferred embodiment as: the supporting frame is internally provided with a transverse moving assembly for driving the water spraying pipe to transversely move and a longitudinal moving assembly for driving the water spraying pipe to longitudinally move and insert into the snow.

Through adopting above-mentioned technical scheme, in order to make shower nozzle spun water more abundant with snow layer contact, setting through longitudinal movement, make the shower nozzle stretch into in the snow layer, make shower nozzle spun rivers can pour into the inside on snow layer, rivers and the injection area on snow layer have been increased, but need the shower nozzle to briefly stop in the injection position, just can reach the abundant contact on rivers and snow layer, just need drive assembly intermittent type stop work, realize the injection work of rivers, so the setting of sideslip subassembly, make the carriage in the slow movement in, cooperation through the sideslip subassembly, make spray pipe reverse movement, make the shower nozzle stop in the position of inserting the snow layer, thereby guarantee ring frame's continuous movement, the reciprocal of having avoided drive assembly is opened, when having played energy-conserving effect with can satisfy the effect that the shower nozzle location supplied water.

The present invention may be further configured in a preferred embodiment as: be provided with a first annular frame in the braced frame, the spray tube support is established in first annular frame, and each rigid coupling in both sides of first annular frame has a stopper, the sideslip subassembly includes the first screw rod of laying along the braced frame moving direction, and first screw rod rotates with braced frame to be connected, and the one end of first screw rod is provided with one and braced frame fixed connection's a driving motor, a driving motor's output shaft and the coaxial rigid coupling of first screw rod, first screw rod pierce through the stopper of one side and with stopper threaded connection, the last rigid coupling of braced frame have one with the first gag lever post that first screw rod is parallel to each other, first gag lever post pierce through another stopper and slide with the stopper and be connected.

Through adopting above-mentioned technical scheme, first driving motor drives first screw rod and rotates, screw-thread fit through first screw rod and a stopper, the spacing of another stopper and first gag lever post slides again, thereby drive first annular frame at annular frame's lateral shifting, when the in-process that annular frame removed, first driving motor drives first annular frame antiport, thereby keep the spray pipe to correspond the position with snow and align each other, annular frame has been ensured at the in-process that removes, the spray pipe can be in corresponding regional continuous water supply, thereby avoided drive assembly's intermittent type nature to open and close, the energy has been practiced thrift.

The present invention may be further configured in a preferred embodiment as: the longitudinal displacement assembly comprises a second annular frame arranged in the first annular frame, a fixed rod used for supporting the water spray pipe is fixedly connected in the second annular frame along the length direction of the driving shaft, the upper surface of the first annular frame is fixedly connected with two U-shaped frames with downward openings, a limiting plate sliding in the vertical direction of the U-shaped frames is arranged in the U-shaped frames, the limiting plate and the second annular frame are connected with each other through an extension arm, a second screw rod is vertically and rotatably connected in the U-shaped frames, penetrates through the limiting plate and is in threaded connection with the limiting plate, and a second driving motor driving the second screw rod to rotate is fixedly connected to the upper end of the second screw rod; a second limiting rod is vertically arranged in the other U-shaped frame, penetrates through the other limiting plate and is connected with the limiting plate in a sliding mode.

Through adopting above-mentioned technical scheme, second driving motor drives the second screw rod and rotates, through second screw rod and a limiting plate threaded connection, under the limiting displacement of another limiting plate and second gag lever post again, drives the second ring-shaped frame and slides along the length direction of second screw rod to make the spray pipe be close to the snow face, and make the shower nozzle insert into in the snow. Under the cooperation of sideslip subassembly, make the stable maintenance of shower nozzle insert the position to guarantee that the position of shower nozzle inserted and moisture is abundant contact. After the water injection is completed, the second driving motor drives the second annular frame to move upwards, the second annular frame is driven by the transverse moving assembly to move towards the direction of the supporting frame close to the driving shaft, then the spray head injects water to the snow surface through the cooperation of the longitudinal moving assembly and the transverse moving assembly, and in the process, the supporting frame stably and slowly keeps moving, so that the mutual influence is avoided, and the working efficiency is improved.

The present invention may be further configured in a preferred embodiment as: the driving assembly comprises a driven gear coaxially and fixedly connected to the driving shaft, and a third driving motor fixed to the supporting frame, wherein an output shaft of the third driving motor is coaxially and fixedly connected with a driving gear meshed with the driven gear.

Through adopting above-mentioned technical scheme, third driving motor drives the driving gear and rotates, through driving gear and driven gear's intermeshing, drives the drive shaft and rotates, and then drives two track displacement subassemblies work, and the drive effect is showing, simple structure, and the staff of being convenient for maintains drive assembly.

The present invention may be further configured in a preferred embodiment as: the spray pipes are arranged in the second annular frame in parallel, and one end of the water supply pipe is communicated with all the spray pipes.

Through adopting above-mentioned technical scheme, the spray pipe is provided with a plurality of to at the same time improved the water injection area to the snowfield, and then also improved water injection efficiency, and then improved staff's efficiency of construction.

The present invention may be further configured in a preferred embodiment as: the inside of the auxiliary moving roller is of a hollow structure, and the auxiliary moving roller is filled with counterweight sand.

Through adopting above-mentioned technical scheme, the snow face is behind the water injection, and the snow layer can take place to become flexible, makes unable abundant and peripheral snow layer contact of moisture, and the supplementary setting of removing the roller for after the water injection, through the pressure of blessing removal roller establish, not only make snow face more level and smooth, also compacted snow face moreover, make moisture can be abundant and peripheral snow layer contact.

The present invention may be further configured in a preferred embodiment as: and a plurality of sand blocking plates are fixedly connected in the auxiliary moving roller along the length direction of the auxiliary moving roller.

Through adopting above-mentioned technical scheme, hinder the setting of husky board for supplementary removal roller is at the pivoted in-process, and the counter weight is husky to be hindered husky board lifting, then counter weight is husky strikes the bottom at supplementary removal roller under the action of gravity when the eminence, thereby supplementary removal roller can be reciprocal receive decurrent impact force at the in-process that removes, thereby change the snow face compaction.

The present invention may be further configured in a preferred embodiment as: the sand blocking plate is a V-shaped plate.

Through adopting above-mentioned technical scheme, will hinder the sand board and set up to the V type for counter weight sand is hindering the in-process that the sand board was accepted, and counter weight sand can concentrate at the middle part that hinders the sand board under the action of gravity, then counter weight sand from hindering the in-process that the sand board fell, can concentrate more to the impact of supplementary removal roller, has improved compaction effect.

To sum up, the utility model discloses following beneficial effect has:

firstly, the physical consumption of workers is saved. Due to the arrangement of the crawler moving assembly, the support frame is driven to move on the snow surface under the driving of the driving assembly, so that the moisture sprayed by the spray head can be uniformly sprayed on the snow surface;

and secondly, energy is saved. After the nozzle pricks the snow surface, the second annular frame can keep the corresponding snow surface position in the moving process of the supporting frame through the matching of the transverse moving assembly, so that the driving assembly can not be opened and closed in a reciprocating manner, and the power consumption of opening and closing the driving assembly is reduced.

Drawings

FIG. 1 is a schematic view of a prior art snow making tool;

FIG. 2 is a schematic view of the structure of a production tool in the present embodiment;

FIG. 3 is a schematic diagram of a configuration embodying a track moving assembly;

FIG. 4 is a schematic diagram of a structure embodying a longitudinal motion assembly;

fig. 5 is a schematic view showing an internal structure of the auxiliary moving roller.

In the figure, 1, a support frame; 11. a drive shaft; 12. an auxiliary moving roller; 13. a first ring frame; 14. a second annular frame; 141. fixing the rod; 142. a limiting block; 15. a water spray pipe; 16. a pipe hoop; 17. a spray head; 18. a water supply pipe; 2. a track moving assembly; 21. a tripod; 22. a drive pulley; 23. a driven pulley; 24. supporting the crawler; 25. a drive assembly; 251. a third drive motor; 252. a driving gear; 253. a driven gear; 3. a traversing assembly; 31. a first screw; 32. a first drive motor; 33. a first limit rod; 4. a longitudinal movement assembly; 41. a U-shaped frame; 42. a limiting plate; 43. an extension arm; 44. a second screw; 45. a second drive motor; 46. a second limiting rod; 5. a sand blocking plate; 6. a shelf body.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A tool for preparing an ice-shaped snow race track is shown in figure 2 and comprises a supporting frame 1, wherein the supporting frame 1 is formed by welding four rectangular beams mutually and forms a frame body with the length of 1.5m and the width of 2.5m, a driving shaft 11 is horizontally arranged on one side of the supporting frame 1 along the length direction, the driving shaft 11 is rotatably connected with the supporting frame 1, and two crawler belt moving assemblies 2 are respectively arranged at two ends of the driving shaft 11; the supporting frame 1 is provided with a driving assembly 25 for driving the driving shaft 11 to rotate on one side, the supporting frame 1 is provided with an auxiliary moving roller 12 rotatably connected with the supporting frame 1 on the side away from the driving shaft 11, and the axis of the auxiliary moving roller 12 is parallel to the axis of the driving shaft 11.

As shown in fig. 3, a first annular frame 13 is horizontally arranged in the supporting frame 1, the first annular frame 13 is connected with the supporting frame 1 in a sliding manner along the length direction of the supporting frame 1, and the supporting frame 1 is provided with a traverse moving assembly 3 for driving the first annular frame 13 to slide along the length direction of the supporting frame 1; be provided with a second ring shaped frame 14 in the first ring shaped frame 13, there are three dead lever 141 along the width direction rigid coupling of second ring shaped frame 14 in the second ring shaped frame 14, three dead lever 141 is parallel to each other, and the both ends of every dead lever 141 and the inner wall fixed connection who corresponds second ring shaped frame 14, interval 150mm between the adjacent dead lever 141, a spray pipe 15 has been laid along dead lever 141 length direction in every dead lever 141 one side, spray pipe 15 passes through ferrule 16 and dead lever 141 reciprocal anchorage, the one end of spray pipe 15 is seal structure, the other end of spray pipe 15 is connected with a delivery pipe 18 jointly, the vertical a plurality of shower nozzle 17 that is provided with in below of spray pipe 15, shower nozzle 17 evenly arranges along 15 length direction of spray pipe, be provided with the longitudinal movement subassembly 4 that drives the vertical direction displacement of second ring shaped frame 14 in the first ring shaped frame 13.

As shown in fig. 3, the track moving assembly 2 includes two tripods 21 parallel to each other, a driving pulley 22 and two driven pulleys 23 are rotatably connected between the two tripods, the driving pulley 22 and the two driven pulleys 23 are located at three corners of the tripods, the axis of the driving pulley 22 is parallel to the axes of the two driven pulleys 23, a supporting track 24 is sleeved on the outer peripheral surfaces of the driving pulley 22 and the two driven pulleys 23, and the driving pulley 22 is coaxially and fixedly connected to one end of the driving shaft 11. When the support frame 1 travels on the snow, the two driven pulleys 23 are positioned below the driving pulley 22, and the support track 24 is in contact with the snow, and the contact area between the support track 24 and the ground is ensured by erecting the two driven pulleys 23, so that the movement stability of the support frame 1 on the snow is ensured.

As shown in fig. 4, the driving assembly 25 includes a third driving motor 251 fixed to one side of the supporting frame 1 near the driving shaft 11, an output shaft of the third driving motor 251 is parallel to the driving shaft 11, an output shaft of the third driving motor 251 is coaxially fixed with a driving gear 252, and a driven gear 253 meshed with the driving gear 252 is coaxially fixed on the driving shaft 11. The third driving motor 251 rotates the driving gear 252, thereby rotating the driving shaft 11 and the support crawler 24 by the engagement of the driving gear 252 and the driven gear 253, and further moving the support frame 1 on the snow.

As shown in fig. 4, two opposite sides of the second ring frame 14 are respectively and fixedly connected with a limiting block 142, the traversing assembly 3 includes a first screw 31 horizontally disposed on the upper surface of the first ring frame 13, the first screw 31 is disposed along the length direction of the supporting frame 1, two ends of the first screw 31 are rotatably connected with the supporting frame 1, one end of the first screw 31 is provided with a first driving motor 32, the first driving motor 32 is fixedly connected with the supporting frame 1, and the output shaft of the first driving motor 32 is coaxially and fixedly connected with the first screw 31, the first screw 31 penetrates through a limit block 142 and is in threaded connection with the limit block 142, the supporting frame 1 is further provided with a first limit rod 33, the first limit rod 33 and the first screw 31 are parallel to each other, and both ends of the first limiting rod 33 are fixedly connected with the supporting frame 1, and the first limiting rod 33 penetrates through the other limiting block 142 and is connected with the limiting block 142 in a sliding manner.

As shown in fig. 4, two U-shaped frames 41 are vertically fixed to the upper surface of the first ring frame 13, the two U-shaped frames 41 are parallel to each other, the opening of the U-shaped frame 41 faces downward, and the U-shaped frames 41 are located on both sides of the first ring frame 13. The longitudinal displacement assembly comprises a limiting plate 42 horizontally arranged in each U-shaped frame 41, one side of the limiting plate 42 is vertically connected with an extension arm 43, and the other end of the extension arm 43 is fixedly connected with the upper surface of the second annular frame 14; a second screw 44 is vertically arranged in the U-shaped frame 41, two ends of the second screw 44 are rotatably connected with the inner wall of the U-shaped frame 41, the second screw 44 penetrates through a limiting plate 42 and is in threaded connection with the limiting plate 42, a second driving motor 45 is fixedly connected to the upper surface of the U-shaped frame 41, and an output shaft of the second driving motor 45 is coaxially and fixedly connected with the second screw 44; a second limiting rod 46 is vertically fixed in the other U-shaped frame 41, and the second limiting rod 46 penetrates the other limiting plate 42 and is slidably connected with the limiting plate 42.

When the water spraying pipe 15 injects water into the snow layer, the driving assembly 25 drives the supporting frame 1 to move towards the driving shaft 11, the first annular frame 13 is initially located at one side of the supporting frame 1 close to the driving shaft 11, at this time, the second driving motor 45 drives the second screw 44 to rotate, the second annular frame 14 is driven to move vertically through the threaded connection of one limiting plate 42 and the second screw 44, under the limiting action of the other limiting plate 42 and the second limiting rod 46, the nozzle 17 of the water spraying pipe 15 is inserted into the snow layer, so that the water source provided by the water supply pipe 18 is injected into the snow layer, meanwhile, the first driving motor 32 drives the first screw 31 to rotate, the first screw 31 is connected with the screw of one limiting block 142, and under the limiting action of the first limiting rod 33 and the other limiting block 142, the first annular frame 13 is driven to move towards the auxiliary moving roller 12, and the moving speed of the first annular frame 13 is the same as the moving speed of the support frame 1 on the snow, so that the position of the snow layer inserted by the spray head 17 is unchanged in the process of ensuring that the support frame 1 moves slowly, and water columns sprayed by the spray head 17 can be sufficiently injected into the snow layer. When first ring frame 13 moves to one side that braced frame 1 is close to supplementary removal roller 12, second driving motor 45 starts, it rises to drive second ring frame 14, and the start of cooperation first driving motor 32, it moves one side that is close to drive shaft 11 once more to drive first ring frame 13, and repeat this work, thereby when ensuring braced frame 1 and removing, spray pipe 15 lasts and carries out water injection work for in the snow cover, and need not to make drive assembly 25 stop work, thereby the energy resource consumption that drive assembly 25 opened and close has been saved, the water injection efficiency to the snow cover has been improved again, and braced frame 1 automatic work, staff's physical demands has been saved, work efficiency has been improved.

As shown in fig. 1 and 5, in the process of moving the supporting frame 1, the auxiliary moving roller 12 is rolled on the snow layer after water is injected, so that not only the snow layer is rolled, but also the snow layer is compacted by the rolling of the auxiliary moving roller 12, and simultaneously, the moisture is more fully contacted with the snow layer, thereby improving the diffusion effect of the moisture. And supplementary roller 12 inside is hollow structure, has filled the counter weight sand in it, and supplementary roller 12 inside has laid a plurality of moreover and has hindered sand board 5, hinders sand board 5 and evenly is provided with 3 along the length direction of supplementary roller 12 that removes to hinder sand board 5 and be the V type, when hindering sand board 5 and be located the one side of keeping away from drive shaft 11, hinder the opening of sand board 5 up. When supplementary roller 12 that removes at the pivoted in-process, it can accept the counter weight sand to hinder sand board 5, the counter weight sand can gather at the middle part that hinders sand board 5 under the action of gravity, when hindering sand board 5 and rotate to the tilt state, it can drop in the bottom of supplementary roller 12 to hinder the counter weight sand that sand board 5 accepted, thereby apply for supplementary roller 12 and last down striking, thereby make the more abundant of snow horizon roll-in, because hinder sand board 5 and be the V type, make the counter weight sand more concentrated, when the counter weight sand falls, also make the local impact force that receives of supplementary roller 12 bigger, the roll-in effect has been improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A tool for preparing an ice-like snow racetrack, characterized in that: the device comprises a supporting frame (1), wherein a driving shaft (11) is arranged on one side of the supporting frame (1), two crawler moving assemblies (2) are respectively arranged at two ends of the driving shaft (11), a driving assembly (25) for driving the driving shaft (11) to rotate is arranged on the supporting frame (1), an auxiliary moving roller (12) is arranged on one side, away from the driving shaft (11), of the supporting frame (1), a water spray pipe (15) is erected in the supporting frame (1) along the width direction of the supporting frame (1), a plurality of spray heads (17) are arranged below the water spray pipe (15) along the length direction of the water spray pipe (15), one end of the water spray pipe (15) is sealed, and the other end of the water spray pipe (15) is connected with a water supply pipe (18;

the track moving assembly (2) comprises a tripod (21), one side of the tripod (21) is rotatably connected with a driving belt pulley (22) and two driven belt pulleys (23) for supporting snow, the axes of the driving belt pulley (22) and the two driven belt pulleys (23) are parallel to each other, and a supporting track (24) is sleeved on the driving belt pulley (22) and the two driven belt pulleys (23) together; the driving belt pulley (22) is coaxially and fixedly connected with one end of the driving shaft (11).

2. A tool for preparing an ice-like snow race track according to claim 1, characterized in that: the supporting frame (1) is internally provided with a transverse moving assembly (3) for driving the water spraying pipe (15) to transversely move and a longitudinal moving assembly (4) for driving the water spraying pipe (15) to longitudinally move and insert into the snow.

3. A tool for preparing an ice-like snow race track according to claim 2, characterized in that: a first annular frame (13) is arranged in the supporting frame (1), the water spray pipe (15) is erected in the first annular frame (13), two sides of the first annular frame (13) are respectively fixedly connected with a limiting block (142), the transverse moving assembly (3) comprises a first screw (31) arranged along the moving direction of the supporting frame (1), the first screw (31) is rotatably connected with the supporting frame (1), one end of the first screw (31) is provided with a first driving motor (32) fixedly connected with the supporting frame (1), an output shaft of the first driving motor (32) is coaxially fixedly connected with the first screw (31), the first screw (31) penetrates through a limiting block (142) on one side and is in threaded connection with the limiting block (142), a first limiting rod (33) parallel to the first screw (31) is fixedly connected onto the supporting frame (1), and the first limiting rod (33) penetrates through another limiting block (142) and is connected with the limiting block (142) in a sliding manner.

4. A tool for preparing an ice-like snow race track according to claim 3, characterized in that: the longitudinal moving assembly (4) comprises a second annular frame (14) arranged in the first annular frame (13), a fixing rod (141) used for supporting the water spray pipe (15) is fixedly connected in the second annular frame (14) along the length direction of the driving shaft (11), the upper surface of the first annular frame (13) is fixedly connected with two U-shaped frames (41) with downward openings, limiting plates (42) sliding with the U-shaped frames (41) in the vertical direction are arranged in the U-shaped frames (41), the limiting plates (42) are connected with the second annular frame (14) through extension arms (43), a second screw rod (44) is vertically and rotatably connected in each U-shaped frame (41), the second screw rod (44) penetrates through the limiting plates (42) and is in threaded connection with the limiting plates (42), and a second driving motor (45) for driving the second screw rod (44) to rotate is fixedly connected to the upper end of the second screw rod (44); a second limiting rod (46) is vertically arranged in the other U-shaped frame (41), and the second limiting rod (46) penetrates through the other limiting plate (42) and is connected with the limiting plate (42) in a sliding manner.

5. A tool for preparing an ice-like snow race track according to claim 1, characterized in that: the driving assembly (25) comprises a driven gear (253) coaxially and fixedly connected to the driving shaft (11), and a third driving motor (251) fixed on the supporting frame (1), wherein an output shaft of the third driving motor (251) is coaxially and fixedly connected with a driving gear (252) meshed with the driven gear (253).

6. A tool for preparing an icy snow racetrack according to claim 4, characterized in that: the water spraying pipes (15) are arranged in the second annular frame (14) in parallel, and one end of the water supply pipe (18) is communicated with all the water spraying pipes (15).

7. A tool for preparing an ice-like snow race track according to claim 1, characterized in that: the interior of the auxiliary moving roller (12) is of a hollow structure, and the auxiliary moving roller (12) is filled with counterweight sand.

8. The tool for preparing an icy snow track according to claim 7, wherein: a plurality of sand blocking plates (5) are fixedly connected in the auxiliary moving roller (12) along the length direction of the auxiliary moving roller (12).

9. A tool for preparing an ice-like snow race track according to claim 8, wherein: the sand blocking plate (5) is a V-shaped plate.