Anti-skid testing device for snowmobile production

Abstract

The invention relates to the technical field of vehicle performance testing, and discloses an anti-skid testing device for snowmobile production, which comprises a detection table, a base, a sealing cover and an electric driving rotating shaft, the base is fixedly connected to the bottom of the detection table, and the electric driving rotating shaft is used for driving snowmobile tires and is mounted on the surface of the detection table; the sealing cover penetrates through the snowmobile tire and is inserted into the outer wall of the electric driving rotating shaft; according to the snowmobile tire mounting device, the snowmobile tire is guided by an external expansion surface of a clamping plate, so that when a worker installs the snowmobile tire on the device, the obstruction of a visual blind area to installation can be reduced, meanwhile, assistance can be performed when the worker lifts the snowmobile tire through limiting of the clamping plate, and a first sliding rod slides towards the interior of an electric driving rotating shaft to enable a gear to rotate; according to the snowmobile tire clamping device, the clamping plates do not cause extra friction force on the snowmobile tire in the rotating process of the snowmobile tire, and the snowmobile tire can be clamped and decelerated in time through the clamping plates when the snowmobile tire is loosened by detecting the installation state of the snowmobile tire through the first sliding rods.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle performance testing, in particular to an anti-skid testing device for snowmobile production. Background Art

[0002] In cold and snowy areas, the anti-skid performance of snowmobiles is directly related to driving safety. They are used in a wide range of scenarios, from polar scientific expeditions to winter tourism, all of which require them to operate stably.

[0003] In the existing snowmobile testing, the anti-skid performance of the tire is usually tested by using plates with different friction coefficients. During the testing process, the friction between the plate and the tire will generate a higher temperature. Compared with the low-temperature road surface when the driver brakes on the road, the temperature increase of the plate cannot accurately reflect the road conditions. Therefore, the anti-skid performance of the tire cannot be accurately reflected by only the adhesion between the plate and the tire. When workers install the tire on the equipment, they need to lift and buckle it. During the lifting process, the operator's line of sight will be blocked by the tire, and they need to constantly adjust the position until the tire is installed, making the installation difficult for the workers. At the same time, during the inspection process, the tire needs to be accelerated to a specified speed. If the tire is loosened from the equipment, the high-speed rotating tire will pose a safety hazard to surrounding workers.

[0004] Therefore, an anti-skid testing device for snowmobile production is proposed. Summary of the invention

[0005] The object of the present invention is to provide an anti-skid testing device for snowmobile production to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-skid testing device for snowmobile production, comprising a testing platform, a base, a cover and an electric drive shaft, wherein the base is fixedly connected to the bottom of the testing platform, the electric drive shaft is used to drive the snowmobile tire and is installed on the surface of the testing platform, the cover passes through the snowmobile tire and is plugged into the outer wall of the electric drive shaft, the interior of the testing platform is provided with an auxiliary installation component for limiting the snowmobile tire during installation, and the interior of the testing platform is provided with an anti-skid detection component for reducing the temperature during testing.

[0007] Preferably, the auxiliary mounting assembly includes a first sliding rod slidably connected to the inside of the electric drive shaft, the outer wall of the first sliding rod is provided with a first cavity, a first spring is fixedly connected between the inside of the first cavity and the inner cavity of the electric drive shaft, a support rod is slidably connected in an annular array on the inside of the electric drive shaft and close to the detection platform, the outer wall of the electric drive shaft is movably connected with a gear, one end of the support rod located outside the electric drive shaft is in conflict with the inner wall of the gear, a thread groove is distributed in an annular array on the side of the inner wall of the gear away from the detection platform, a slider is fixedly connected to the outer wall of the electric drive shaft in an annular array, the slider is adapted to the thread groove, a carrier plate is fixedly connected to the outer wall of the electric drive shaft, the carrier plate is fitted with the inner wall of the gear, the outer wall of the detection platform is symmetrically slidably connected with a special-shaped toothed plate, the side of the special-shaped toothed plate close to the gear is meshed with the outer wall of the gear, a second spring is fixedly connected between the outer wall of the special-shaped toothed plate and the detection platform, and a clamp is fixedly connected to the side of the special-shaped toothed plate away from the electric drive shaft.

[0008] Preferably, the anti-skid detection component includes a detection frame symmetrically installed on the outer wall of the detection platform, a speed bump is installed on the side of the detection frame close to the snowmobile tire, a crankshaft is symmetrically and movably connected inside the detection frame, a rotating wheel is fixedly connected to both sides of the crankshaft, a skateboard is rotatably connected to the middle part of the crankshaft, an L-shaped vent hole is opened inside the skateboard, a first sealed cabin is fixedly connected inside the detection frame, the skateboard is slidably connected to the inside of the first sealed cabin, a cover plate is symmetrically and rotatably connected to the side of the first sealed cabin away from the skateboard, a third spring is sleeved on the rotation connection between the cover plate and the first sealed cabin, a second sealed cabin is fixedly connected to the outer wall of the detection frame and located outside the first sealed cabin, a second sliding rod is symmetrically and slidably connected inside the detection frame, a square plate is fixedly connected to one end of the second sliding rod close to the crankshaft, a fourth spring is fixedly connected between the square plate and the detection frame, a second cavity is opened on the outer wall of the second sliding rod away from the crankshaft, an air duct is fixedly connected to the outer wall of the second sealed cabin, a cooling chamber is opened inside the detection frame, and an end of the air duct away from the second sealed cabin is fixedly connected to the inside of the cooling chamber.

[0009] Preferably, the support rod is inclined inside the electric drive shaft from the side close to the detection platform to the side close to the snowmobile tire, and when the support rod is retracted into the electric drive shaft, its end side is vertically coplanar with the carrier plate, and the first slide bar is chamfered on the side close to the detection platform, and the first slide bar slides out of the outside of the electric drive shaft when the first spring is not under force.

[0010] Preferably, when the support rod is located inside the electric drive shaft, the sliding block does not slide into the thread groove.

[0011] Preferably, the second sealed cabin is provided with a ventilation hole having an inner diameter equal to that of the air guide pipe, and the diameter of the second sliding rod is equal to the diameter of the ventilation hole of the second sealed cabin.

[0012] Preferably, the rotating wheel fits against the outer wall of the snowmobile tire, and the outer wall of the rotating wheel is provided with teeth and grooves in an annular array.

[0013] Preferably, the inner cavity of the first sealed cabin is blocked by the cover plate and the slide plate to form a closed space, the L-shaped vent hole runs through the upper surface of the slide plate and the side of the slide plate close to the cover plate, and the opening above the slide plate is located on the upper surface of the slide plate and on the side of the inner cavity of the detection frame close to the first sealed cabin.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The plywood guides the snowmobile tires by expanding the surface, so that when the workers install the snowmobile tires on the equipment, the obstacles caused by the visual blind spots can be reduced. At the same time, the plywood can be limited to assist the workers when lifting the snowmobile tires, reducing the difficulty of installation before the workers detect. The first slide bar slides into the electric drive shaft to rotate the gears, so that the plywood will not cause additional friction to the snowmobile tires during the rotation process. The first slide bar detects the installation status of the snowmobile tires, and can clamp and slow down the snowmobile tires in time through the plywood when the snowmobile tires are loose, so as to avoid the tires from losing control when rotating and causing harm to the surrounding workers, thereby improving the safety of the equipment when in use; 2. Before the snowmobile tire is about to contact the test frame, the friction of the snowmobile tire drives the wheel to rotate first, so that high-pressure air is stored in the second sealed chamber. After the test frame contacts the snowmobile tire, the high-pressure gas in the second sealed chamber will cool the test frame, so that the temperature of the test frame is lower when the test frame rubs against the snowmobile tire, thereby simulating the friction and sliding of the vehicle on the low-temperature road surface when braking on the ground, avoiding the temperature of the test frame and the snowmobile tire increasing at the same time, affecting the test results of the anti-skid performance of the snowmobile tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is an exploded schematic diagram of the overall structure of the present invention; Figure 3 This is an exploded schematic diagram of the auxiliary installation assembly structure of the present invention; Figure 4 It is a partial schematic diagram of the electric drive shaft structure of the present invention; Figure 5 It is a schematic cross-sectional view of the interior of the electric drive shaft structure of the present invention; Figure 6 For the present invention Figure 5A schematic diagram of the structure enlargement in the middle; Figure 7 It is a schematic diagram of the overall structure of the anti-skid detection component of the present invention; Figure 8 It is a schematic cross-sectional view of the interior of the detection frame structure of the present invention; Fig. 9 This is an exploded schematic diagram of the anti-skid detection component structure of the present invention; Fig.10 It is a schematic cross-sectional view of the cooling chamber structure of the present invention.

[0016] In the figure: 1. Test bench; 2. Base; 3. Cover; 4. Electric drive shaft; 5. Auxiliary installation components; 6. Anti-skid detection components; 51, first slide bar; 52, first cavity; 53, first spring; 54, support rod; 55, gear; 56, thread groove; 57, slide block; 58, carrier plate; 59, special-shaped tooth plate; 510, clamping plate; 511, second spring; 61. Inspection frame; 62. Speed ​​bump; 63. Crankshaft; 64. Rotating wheel; 65. Slide plate; 66. L-shaped vent; 67. First sealed cabin; 68. Cover plate; 69. Third spring; 610. Second sealed cabin; 611. Second slide bar; 612. Square plate; 613. Fourth spring; 614. Second cavity; 615. Air duct; 616. Cooling cavity. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiments of the present invention See also Figures 1 to 6 A skid resistant test device for snowmobile production includes a test platform 1, a base 2, a cover 3 and an electric drive shaft 4. The base 2 is fixedly connected to the bottom of the test platform 1. The electric drive shaft 4 is used to drive the snowmobile tire and is installed on the surface of the test platform 1. The cover 3 passes through the snowmobile tire and is plugged into the outer wall of the electric drive shaft 4. An auxiliary installation component 5 for limiting the position of the snowmobile tire during installation is arranged inside the test platform 1. An anti-skid detection component 6 for reducing the temperature during testing is arranged inside the test platform 1.

[0019] The auxiliary installation assembly 5 includes a first slide bar 51 slidably connected to the inside of the electric drive shaft 4, the outer wall of the first slide bar 51 is provided with a first cavity 52, the inside of the first cavity 52 is fixedly connected to the inner cavity of the electric drive shaft 4 with a first spring 53, the inside of the electric drive shaft 4 and the side close to the detection platform 1 are slidably connected with support rods 54 in a circular array, the outer wall of the electric drive shaft 4 is movably connected with a gear 55, the end of the support rod 54 located outside the electric drive shaft 4 is in conflict with the inner wall of the gear 55, and the inner wall of the gear 55 away from the detection platform 1 is provided with a circular array. There is a thread groove 56, and the outer wall of the electric drive shaft 4 is fixedly connected with a slider 57 distributed in a circular array, and the slider 57 is adapted to the thread groove 56. The outer wall of the electric drive shaft 4 is fixedly connected with a carrier plate 58, and the carrier plate 58 fits with the inner wall of the gear 55. The outer wall of the detection platform 1 is symmetrically slidably connected with a special-shaped tooth plate 59, and the side of the special-shaped tooth plate 59 close to the gear 55 is meshed with the outer wall of the gear 55. A second spring 511 is fixedly connected between the outer wall of the special-shaped tooth plate 59 and the detection platform 1, and the side of the special-shaped tooth plate 59 away from the electric drive shaft 4 is fixedly connected with a clamping plate 510.

[0020] The support rod 54 is inclined inside the electric drive shaft 4 from the side close to the detection platform 1 to the side close to the snowmobile tire. When the support rod 54 is retracted into the electric drive shaft 4, its end side is perpendicular to the carrier plate 58 and is coplanar. A chamfer is provided on the side of the first slide bar 51 close to the detection platform 1. When the first spring 53 is not subjected to force, the first slide bar 51 slides out of the outside of the electric drive shaft 4.

[0021] When the support rod 54 is located inside the electric drive shaft 4 , the sliding block 57 has not slid into the thread groove 56 .

[0022] When the present invention is actually used, the staff will lift the snowmobile tire that needs to be tested and install it on the electric drive shaft 4. When the staff installs the snowmobile tire, the clamping plate 510 will guide the moving direction of the snowmobile tire, so that the staff can avoid the problem of difficulty in installation due to visual blind spots during installation. When facing tires of different diameters, the clamping plate 510 will adjust different spacings by sliding inside the inspection platform 1. At the same time, the elastic contraction of the second spring 511 enables the clamping plate 510 to be tightly attached to the outer wall of the snowmobile tire and guide it. When the snowmobile tire and the electric drive shaft 4 are aligned, the clamping plate 510 at this time will be tightly attached to the outer wall of the tire, and the staff will press the snowmobile tire to one side of the electric drive shaft 4 and install the cover 3. When the snowmobile tire moves, it will cause the first slide bar 51 to The first slide bar 51 slides inside the electric drive shaft 4 toward the side close to the detection platform 1, and the first spring 53 is stretched and elastically stretched to generate a rebound force. The first slide bar 51 moves and squeezes the inclined surface of the support rod 54 to make the support rod 54 slide out of the outside of the electric drive shaft 4. When the support rod 54 slides out of the outside of the electric drive shaft 4, it pushes the gear 55 to slide toward the side close to the snowmobile tire. When the gear 55 slides on the outer wall of the electric drive shaft 4, it makes the slider 57 slide into the inside of the thread groove 56. At this time, the gear 55 rotates on the outer wall of the electric drive shaft 4 due to the threaded arrangement of the thread groove 56. The rotation of the gear 55 drives the special-shaped tooth plate 59 to engage and slide. After the special-shaped tooth plate 59 slides, the clamping plate 510 fixed thereto moves to the side away from the snowmobile tire, so as to no longer fit the outer wall of the snowmobile tire. When the cover 3 becomes loose or the snowmobile tire is displaced on the electric drive shaft 4 during the detection process, the first slide bar 51 will collide with the snowmobile tire and then pop out to the outside of the electric drive shaft 4. After the first slide bar 51 pops out, it will no longer squeeze the support rod 54. After the support rod 54 is retracted into the electric drive shaft 4, it will no longer push the gear 55. The gear 55 is reset and the slider 57 is disengaged from the inside of the thread groove 56. At this time, the gear 55 rotates and drives the special-shaped toothed plate 59 and the clamping plate 510 to move relative to each other. The clamping plate 510 will clamp the snowmobile tire, so that the rotating snowmobile tire stops rotating due to friction and squeezing, ensuring that the surrounding staff will not be injured due to the popping out of the loose snowmobile tire during the detection process.

[0023] By guiding the snowmobile tire by the outward expansion of the clamping plate 510, the workers can reduce the obstacles to the installation caused by the visual blind spot when installing the snowmobile tire on the equipment. At the same time, the limit of the clamping plate 510 can assist the workers when lifting the snowmobile tire, reducing the difficulty of installation before the workers' inspection. The sliding of the first slide bar 51 into the electric drive shaft 4 can rotate the gear 55, so that the clamping plate 510 will not cause additional friction to the snowmobile tire during the rotation. The installation status of the snowmobile tire is detected by the first slide bar 51, and the snowmobile tire can be clamped and slowed down in time through the clamping plate 510 when the snowmobile tire is loose, so as to avoid the tire from losing control when rotating and causing harm to surrounding workers, thereby improving the safety of the equipment when in use.

[0024] See also Figures 7 to 10 The anti-skid detection component 6 includes a detection frame 61 symmetrically installed on the outer wall of the detection platform 1, and a speed bump 62 is installed on the side of the detection frame 61 close to the snowmobile tire. A crankshaft 63 is symmetrically and movably connected inside the detection frame 61, and a rotating wheel 64 is fixedly connected to both sides of the crankshaft 63. A slide plate 65 is rotatably connected to the middle of the crankshaft 63, and an L-shaped vent hole 66 is opened inside the slide plate 65. A first sealed cabin 67 is fixedly connected inside the detection frame 61, and the slide plate 65 is slidably connected to the inside of the first sealed cabin 67. A cover plate 68 is symmetrically and rotatably connected to the side of the first sealed cabin 67 away from the slide plate 65, and a third cover plate 68 and the first sealed cabin 67 are both sleeved at the rotation connection. Spring 69, the outer wall of the detection frame 61 and the outside of the first sealed cabin 67 are fixedly connected with the second sealed cabin 610, the inside of the detection frame 61 is symmetrically slidably connected with the second slide bar 611, the end of the second slide bar 611 close to the crankshaft 63 is fixedly connected with a square plate 612, and a fourth spring 613 is fixedly connected between the square plate 612 and the detection frame 61, and the outer wall of the second slide bar 611 away from the crankshaft 63 is provided with a second cavity 614, the outer wall of the second sealed cabin 610 is fixedly connected with an air duct 615, and the inside of the detection frame 61 is provided with a cooling chamber 616, and the end of the air duct 615 away from the second sealed cabin 610 is fixedly connected to the inside of the cooling chamber 616.

[0025] The second sealed cabin 610 is provided with a ventilation hole having an inner diameter equal to that of the air guide tube 615 , and the diameter of the second sliding rod 611 is equal to the diameter of the ventilation hole of the second sealed cabin 610 .

[0026] The rotating wheel 64 is in contact with the outer wall of the snowmobile tire, and the outer wall of the rotating wheel 64 is provided with teeth and grooves in an annular array.

[0027] The inner cavity of the first sealed cabin 67 is blocked by the cover plate 68 and the slide plate 65 to form a closed space. The L-shaped vent hole 66 runs through the upper surface of the slide plate 65 and the side of the slide plate 65 close to the cover plate 68. The opening above the slide plate 65 is located on the upper surface of the slide plate 65 and on the side of the inner cavity of the detection frame 61 close to the first sealed cabin 67.

[0028] When the present invention is actually used, after the snowmobile tire rotates to a specified speed on the test platform 1, the staff controls the two test frames 61 to approach the snowmobile tire. When the speed bump 62 on the test frame 61 is about to contact the snowmobile tire, the runner 64 will contact the snowmobile tire before the speed bump 62. The runner 64 rotates under the influence of the friction force when contacting the snowmobile tire. During the rotation process, the runner 64 drives the slide plate 65 to slide back and forth inside the first sealed cabin 67 through the crankshaft 63. When the slide plate 65 slides inside the first sealed cabin 67, the L-shaped vent hole 66 on the upper surface of the slide plate 65 is blocked by the inner wall of the first sealed cabin 67, so that the original air in the inner cavity of the first sealed cabin 67 passes through the cover plate 68 to the second sealed cabin 610. The cover plate 68 is affected by the third spring 69. When the internal pressure of the first sealed cabin 67 is lower than the internal pressure of the second sealed cabin 610, the cover plate 68 will always adhere to the outer wall of the first sealed cabin 67 and seal the interior of the first sealed cabin 67. When the slide plate 65 slides out from the interior of the first sealed cabin 67, the L-shaped air vent 66 on the top of the slide plate 65 will expose the interior of the first sealed cabin 67. At this time, the external gas will enter the interior of the first sealed cabin 67 through the L-shaped air vent 66, so that the external air will always fill the interior of the first sealed cabin 67 during the reciprocating sliding of the slide plate 65, and the air inside the first sealed cabin 67 will always fill the interior of the second sealed cabin 610. At this time, a relatively high pressure will be formed inside the second sealed cabin 610.

[0029] When the detection frame 61 continues to be squeezed toward the snowmobile tire, the speed bump 62 will rub against the snowmobile tire, thereby detecting the anti-skid performance of the snowmobile tire. At the same time, the rotating wheel 64 will be squeezed by the snowmobile tire. The rotating wheel 64 pushes the square plate 612 and the second slide bar 611 to slide to the side away from the snowmobile tire through the crankshaft 63. The fourth spring 613 is squeezed and elastically contracts. The second cavity 614 is located in the middle of the vent hole of the second sealed cabin 610 after the second slide bar 611 moves, so that the gas inside the second sealed cabin 610 can enter the cooling chamber 616 through the air guide pipe 615, so that the high temperature generated by the friction of the detection frame 61 is reduced by the injection of high-pressure gas, and the gas injected into the detection frame 61 passes through the cooling chamber 616 and is discharged from the interior of the detection frame 61. When the gas passes through the interior of the detection frame 61, the heat inside the detection frame 61 is discharged to the outside.

[0030] Before the snowmobile tire is about to contact the detection frame 61, the wheel 64 is driven to rotate by friction, so that high-pressure air is stored in the second sealed chamber 610. After the detection frame 61 contacts the snowmobile tire, the high-pressure gas in the second sealed chamber 610 will cool the detection frame 61, so that the temperature of the detection frame 61 is relatively low when the detection frame 61 rubs against the snowmobile tire, thereby simulating the friction and sliding of the vehicle on the low-temperature road surface when braking on the ground, avoiding the temperature of the detection frame 61 and the snowmobile tire increasing at the same time, which affects the detection result of the anti-skid performance of the snowmobile tire.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A skid resistance testing device for snowmobile production, comprising a testing platform (1), a base (2), a cover (3) and an electric drive shaft (4), characterized in that: The base (2) is fixedly connected to the bottom of the test bench (1); the electric drive shaft (4) is used to drive the snowmobile tire and is installed on the surface of the test bench (1); the cover (3) passes through the snowmobile tire and is plugged into the outer wall of the electric drive shaft (4); an auxiliary installation component (5) for limiting the position of the snowmobile tire during installation is arranged inside the test bench (1); and an anti-skid detection component (6) for reducing the temperature during testing is arranged inside the test bench (1).

2. The anti-skid test device for snowmobile production according to claim 1, characterized in that: The auxiliary mounting assembly (5) comprises a first sliding rod (51) slidably connected to the inside of the electric drive shaft (4); a first cavity (52) is formed on the outer wall of the first sliding rod (51); a first spring (53) is fixedly connected between the inside of the first cavity (52) and the inner cavity of the electric drive shaft (4); support rods (54) are slidably connected in an annular array on the inside of the electric drive shaft (4) and on a side close to the detection platform (1); a gear (55) is movably connected to the outer wall of the electric drive shaft (4); one end of the support rod (54) located outside the electric drive shaft (4) is in contact with the inner wall of the gear (55); and a threaded portion is formed on the inner wall of the gear (55) away from the detection platform (1) and on a side of the inner wall of the gear (55) The outer wall of the electric drive shaft (4) is fixedly connected with sliders (57) distributed in an annular array, and the sliders (57) are adapted to the threaded groove (56). The outer wall of the electric drive shaft (4) is fixedly connected with a carrier plate (58), and the carrier plate (58) is in contact with the inner wall of the gear (55). The outer wall of the detection platform (1) is symmetrically slidably connected with a special-shaped tooth plate (59), and the side of the special-shaped tooth plate (59) close to the gear (55) is meshed with the outer wall of the gear (55). A second spring (511) is fixedly connected between the outer wall of the special-shaped tooth plate (59) and the detection platform (1), and the side of the special-shaped tooth plate (59) away from the electric drive shaft (4) is fixedly connected with a clamping plate (510).

3. The anti-skid test device for snowmobile production according to claim 1, characterized in that: The anti-skid detection assembly (6) comprises a detection frame (61) symmetrically mounted on the outer wall of the detection platform (1); a speed bump (62) is mounted on a side of the detection frame (61) close to the snowmobile tire; a crankshaft (63) is symmetrically and movably connected inside the detection frame (61); rotating wheels (64) are fixedly connected to both sides of the crankshaft (63); a slide plate (65) is rotatably connected to the middle of the crankshaft (63); an L-shaped vent hole (66) is provided inside the slide plate (65); a first sealed cabin (67) is fixedly connected inside the detection frame (61); the slide plate (65) is slidably connected to the inside of the first sealed cabin (67); a cover plate (68) is symmetrically and rotatably connected to a side of the first sealed cabin (67) away from the slide plate (65); and a rotationally connected portion between the cover plate (68) and the first sealed cabin (67) is sleeved with a A third spring (69); an outer wall of the detection frame (61) and located outside the first sealed cabin (67) is fixedly connected to a second sealed cabin (610); a second sliding rod (611) is symmetrically slidably connected inside the detection frame (61); one end of the second sliding rod (611) close to the crankshaft (63) is fixedly connected to a square plate (612); a fourth spring (613) is fixedly connected between the square plate (612) and the detection frame (61); a second cavity (614) is formed on the outer wall of the second sliding rod (611) away from the crankshaft (63); an air guide pipe (615) is fixedly connected to the outer wall of the second sealed cabin (610); a cooling chamber (616) is formed inside the detection frame (61); one end of the air guide pipe (615) away from the second sealed cabin (610) is fixedly connected to the inside of the cooling chamber (616).

4. The anti-skid test device for snowmobile production according to claim 2, characterized in that: The support rod (54) is inclined inside the electric drive shaft (4) from a side close to the test bench (1) to a side close to the snowmobile tire; when the support rod (54) is retracted inside the electric drive shaft (4), its end side is vertically coplanar with the carrier plate (58); a chamfer is provided on a side of the first slide bar (51) close to the test bench (1); and when the first spring (53) is not subjected to force, the first slide bar (51) slides out of the outside of the electric drive shaft (4).

5. The anti-skid test device for snowmobile production according to claim 2, characterized in that: When the support rod (54) is located inside the electric drive shaft (4), the sliding block (57) has not slid into the thread groove (56).

6. The anti-skid test device for snowmobile production according to claim 3, characterized in that: The second sealed cabin (610) is provided with a ventilation hole having an inner diameter equal to that of the air guide tube (615); the diameter of the second sliding rod (611) is equal to the diameter of the ventilation hole of the second sealed cabin (610).

7. The anti-skid test device for snowmobile production according to claim 3, characterized in that: The rotating wheel (64) fits against the outer wall of the snowmobile tire, and the outer wall of the rotating wheel (64) is provided with tooth grooves in an annular array.

8. The anti-skid test device for snowmobile production according to claim 3, characterized in that: The inner cavity of the first sealed cabin (67) is blocked by the cover plate (68) and the slide plate (65) to form a closed space; the L-shaped vent hole (66) penetrates the upper surface of the slide plate (65) and a side of the slide plate (65) close to the cover plate (68); the opening above the slide plate (65) is located on the upper surface of the slide plate (65) and on a side of the inner cavity of the detection frame (61) close to the first sealed cabin (67).

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