CN114112425A - System for testing coupling characteristics of snow roller and snow during snow pressing vehicle operation - Google Patents
System for testing coupling characteristics of snow roller and snow during snow pressing vehicle operation Download PDFInfo
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- CN114112425A CN114112425A CN202111252279.9A CN202111252279A CN114112425A CN 114112425 A CN114112425 A CN 114112425A CN 202111252279 A CN202111252279 A CN 202111252279A CN 114112425 A CN114112425 A CN 114112425A
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000003825 pressing Methods 0.000 title claims abstract description 21
- 230000008878 coupling Effects 0.000 title claims abstract description 17
- 238000010168 coupling process Methods 0.000 title claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 238000006073 displacement reaction Methods 0.000 claims abstract description 13
- 238000013016 damping Methods 0.000 claims description 9
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- 230000008569 process Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
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- 239000002131 composite material Substances 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000005457 optimization Methods 0.000 description 1
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- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H4/00—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow
- E01H4/02—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow for sporting purposes, e.g. preparation of ski trails; Construction of artificial surfacings for snow or ice sports ; Trails specially adapted for on-the-snow vehicles, e.g. devices adapted for ski-trails
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Abstract
The invention provides a system for testing coupling characteristics of a snow roller and snow in snow pressing vehicle operation, which comprises a pair of pressure adjusting devices, a conveying mechanism, a driving mechanism and a snow roller, wherein each pressure adjusting device comprises a hand wheel and a rectangular threaded rod which are matched with each other; a displacement sensor is fixed on the threaded support, and a rotating speed sensor is fixed on the roller bracket above the snow roller; the conveying mechanism comprises a conveying plate and a base which are matched through a guide groove, and the bottom of the conveying plate is meshed with the base through a gear rack; the driving mechanism comprises a motor B, a motor shaft of the motor B is respectively matched with the roller and the snow roller, and two ends of the roller and the snow roller are arranged on the roller bracket. The invention can switch the roller tooth type according to the actual road surface condition, simulate different ice and snow road surfaces by adjusting the pressure, thereby meeting the test requirement.
Description
Technical Field
The invention belongs to the technical field of snow pressing vehicles, and particularly relates to a system for testing coupling characteristics of a snow roller and snow during snow pressing vehicle operation.
Background
The snow pressing vehicle is one of heavy equipment for construction of a ski field, is used for pressing snow, leveling snow, pushing snow and beating snow, and is core equipment for improving the quality of a snow track and ensuring normal skiing movement. The design and control method of the snow roller directly influence the working effect of the snow pressing vehicle.
The physical properties of snow are special, and the hardness of the snow surface and the difficulty of breaking the snow are different along with different combination changes of parameters such as density, temperature, compaction degree and the like, so that the snow roller for the snow pressing vehicle operation also has certain adjusting capacity when facing a complex working environment. At present, the connection mode between a snow breaking knife and a driving roller of a snow roller of a plurality of snow pressing vehicles is welding; although the design is low in cost, the adaptability of the snow pressing vehicle is limited in the face of variable working environments, particularly when the snow pressing vehicle works on a high-hardness ice and snow road surface, the snow pressing vehicle is likely to be damaged due to large impact, the replacement of the snow pressing vehicle is difficult due to a welding process, and meanwhile, a plurality of snow pressing vehicle working tools are hydraulically driven, so that the power output control is limited.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a coupling characteristic test system for a snow roller and snow of a snow pressing vehicle, the snow roller can switch roller tooth types according to the actual road surface condition, and the test system can simulate different ice and snow road surfaces by adjusting pressure, so that the test requirement is met.
The present invention achieves the above-described object by the following technical means.
A snow roller and snow coupling characteristic test system for snow press operation comprises: a pair of pressure adjusting devices, a conveying mechanism, a driving mechanism and a snow roller;
the pressure adjusting device comprises a hand wheel, a rectangular threaded rod, a displacement sensor and a rotating speed sensor; the bottom end of the hand wheel is matched with the rectangular threaded rod, and the threaded support is arranged on the periphery of the rectangular threaded rod and is matched with the rectangular threaded rod through threads; a force increasing spring is coaxially arranged outside the rectangular threaded rod, and two ends of the force increasing spring are respectively matched with the threaded support and the roller bracket; a displacement sensor is fixed on the threaded support, and a rotating speed sensor is fixed on the roller bracket above the snow roller;
the conveying mechanism comprises a conveying plate and a base, the conveying plate is matched with the base through a guide groove, a rack is designed at the bottom of the conveying plate and is meshed with a gear, the gear is installed on a motor shaft of a motor A, and the motor A is fixed on the base;
the driving mechanism comprises a motor B, the motor B is movably arranged on two sides of the supporting frame, a motor shaft of the motor B is respectively matched with the roller and the snow roller, and two ends of the roller and the snow roller are arranged on the roller bracket.
According to a further technical scheme, the snow roller comprises a rack mechanism, a tooth replacing device and a snow breaking mechanism;
the tooth rack mechanism comprises an outer tooth rack and a cover plate, the cover plate is fixed outside the outer tooth rack, two layers of spline grooves are circumferentially and uniformly distributed on two end faces of the outer tooth rack in a stepped shape, and tooth grooves are formed in the outer cylindrical surface of the outer tooth rack;
the gear changing device comprises a limiting block, an inner tooth rack and a limiting bracket, the limiting bracket is embedded in a spline groove on the end face of the inner tooth rack, the limiting block is arranged in a tooth groove of the outer tooth rack, and the bottom of the limiting block is in contact with the inner tooth rack;
snow breaking mechanism includes roller tooth, damping spring, return spring and wireless pressure sensor, and damping spring arranges in the bracket below of roller tooth, and return spring arranges in the bracket both sides of roller tooth, and wireless pressure sensor's upper surface and roller tooth bracket bottom contact, lower surface and stopper contact.
According to a further technical scheme, even rows of tooth grooves are formed in the outer cylindrical surface of the outer tooth rack, the even rows of tooth grooves are divided into two groups in a staggered mode, and roller teeth with different thicknesses and different tooth tip shapes can be arranged in each group of tooth grooves according to requirements.
According to a further technical scheme, supporting legs are arranged on the inner tooth rack in a circumferential array mode; the inner gear rack is provided with round tables on two end faces, and the surfaces of the round tables are provided with spline grooves for being embedded with the limiting bracket after the roller teeth are adjusted.
According to a further technical scheme, a limiting table is designed at the bottom of the tooth groove.
According to the further technical scheme, the motor B is fixed on two sides of the supporting frame through the motor support B, and the motor support B moves up and down along the supporting frame through adjusting the clamping bolts.
According to the technical scheme, the two layers of spline grooves comprise inner layer spline grooves and outer layer spline grooves, the outer layer spline grooves are matched with a motor shaft of the motor B, and the inner layer spline grooves are embedded in the inner layer spline grooves for locking by the limiting support after the roller teeth are replaced.
According to a further technical scheme, the threaded support and the roller bracket are limited through a limiting pin.
The invention has the following beneficial effects:
(1) the snow roller for snow pressing vehicle operation can switch different snow rollers to break snow according to the operation environment, thereby improving the operation efficiency of the snow pressing vehicle.
(2) The roller teeth can be stretched and replaced, and can be replaced independently if a certain roller tooth is deformed or even damaged due to excessive impact and vibration in the working process.
(3) Compared with the existing hydraulic transmission mode, the snow roller for operation is more sensitive in response and more flexible in control of output power.
(4) The performance test system can change the driving moment and the rotating speed of the operation snow roller, visually observe the operation effect and has important reference significance for the optimization of the control strategy of the snow roller and the structural improvement.
(5) The performance test system can simulate the ice and snow road surface under various conditions according to requirements, so that the experimental environment is closer to the real working environment.
(6) The pressure adjusting device adopts the displacement sensor to acquire data, and is convenient to record and accurate in data.
Drawings
FIG. 1 is a schematic structural view of a performance testing system of a snow roller of the snow pressing vehicle;
FIG. 2 is an exploded view of a performance testing system for a snow roller of the snow blower vehicle according to the present invention;
FIG. 3 is an exploded view of the pressure regulating device of the present invention;
FIG. 4 is an exploded view of the transfer mechanism of the present invention;
FIG. 5 is an exploded view of the drive mechanism of the present invention;
FIG. 6 is a partial exploded view of the tooth changing apparatus of the present invention;
FIG. 7 is a cross-sectional view of a snow roller according to the present invention;
FIG. 8 is an enlarged fragmentary section of a snow roller in accordance with the present invention;
FIG. 9 is a partial exploded view of the snow roller of the present invention;
FIG. 10 is an overall assembly view of the snow roller of the present invention;
FIG. 11 is a flow chart of a control method of the performance testing system according to the present invention;
in the figure: 1-hand wheel; 2-a support frame; 3-a threaded support; 4-a limit pin; 5-a roller bracket; 6-a bearing; 7-a roller; 8-a base; 9-motor A; 10-bolt; 11-motor support B; 12-a gear; 13-motor B; 14-motor support B; 15-a transfer plate; 16-a snow roller; 17-a rotational speed sensor; 18-a force-increasing spring; 19-rectangular threaded rod; 20-a displacement sensor; 21-roller tooth A; 22-teeth B; 23-a fixing bolt; 24-an inner rack; 25-external tooth rack; 26-a limit bracket; 27-a cover plate; 28-a limiting block; 29-a wireless pressure sensor; 30-a damping spring; 31-a return spring; 32-a circular truncated cone; 33-supporting the feet.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
The utility model provides a press snow car operation snow roller, includes snow breaking mechanism, trades tooth device and tooth frame mechanism, trades the tooth device and arranges inside tooth frame mechanism, and can circumferential direction for tooth frame mechanism, and snow breaking mechanism cooperatees through tooth's socket and tooth frame mechanism, and can radial movement for tooth frame mechanism.
As shown in fig. 8, the rack mechanism includes outer rack 25, apron 27 and fixing bolt 23, and fixing bolt 23 passes through the through-hole on the apron 27 and the screw hole on the outer rack 25 simultaneously to fix apron 27 outside outer rack 25, two terminal surfaces of outer rack 27 all are echelonment circumference equipartition two-layer spline groove, and outer rack 27 outer cylinder surface is equipped with the tooth's socket according to certain regular array, and the fixed slot has been seted up according to the outline of apron 27 at the tooth's socket top, and tooth's socket bottom design has spacing platform.
As shown in fig. 6 and 8, the gear changing device comprises a limiting block 28, an inner rack 24 and a limiting bracket 26, the limiting bracket 26 is embedded in a spline groove on the end surface of the inner rack 24, the limiting block 28 is arranged in a tooth groove of the outer rack 25, and the bottom of the limiting block 28 is in contact with the inner rack 24 for limiting.
As shown in fig. 8, the snow breaking mechanism comprises a roller tooth a21, a roller tooth B22, a damping spring 30, a return spring 31 and a wireless pressure sensor 29, wherein the damping spring 30 is arranged below a bracket of the roller tooth, the return spring 31 is arranged on two sides of the bracket of the roller tooth, the upper surface of the wireless pressure sensor 29 is in contact with the bottom of the bracket of the roller tooth, the lower surface of the wireless pressure sensor 29 is in contact with a limit block 28, and meanwhile, the wireless pressure sensor 29 is in signal connection with a controller of a motor B.
A coupling characteristic test system for snow rollers and snow in snow pressing vehicle operation comprises a pair of pressure adjusting devices, a conveying mechanism, a driving mechanism and a snow roller 16, wherein the pressure adjusting devices are fixed on the conveying mechanism through a supporting frame 2, and the snow roller 16 is matched with one of the pressure adjusting devices through a spline.
As shown in fig. 1, 2 and 3, the pressure adjusting device comprises a hand wheel 1, a rectangular threaded rod 19, a threaded support 3, a boosting spring 18, a roller support 5, a limit pin 4, a displacement sensor 20 and a rotation speed sensor 17, wherein the bottom end of the hand wheel 1 penetrates through the support frame 2 and then is matched with one end of the rectangular threaded rod 19 through a flat key, so that circumferential limit and axial adjustment between the hand wheel 1 and the rectangular threaded rod 19 are realized; the through hole of the threaded support 3 is provided with internal threads which are matched with the external threads of the rectangular threaded rod 19; the force increasing spring 18 is coaxially arranged outside the rectangular threaded rod 19, meanwhile, two ends of the force increasing spring 18 are respectively matched with the threaded support 3 and the circular grooves on the roller support 5, so that the force increasing spring 18 is limited, two ends of the limiting pin 4 simultaneously penetrate through the threaded support 3 and the circular through holes on the roller support 5 to realize limiting, and the threaded support 3 matched with the rectangular threaded rod 19 is prevented from synchronously rotating when the hand wheel 1 transmits torque to the rectangular threaded rod 19, so that the normal work of the device is interfered; the two displacement sensors 20 penetrate through the circular holes on the threaded support 3 to be fixed, and the displacement sensors 20 are used for measuring the relative displacement between the threaded support 3 and the roller bracket 5 to obtain the compression amount of the boosting spring 18 and further calculate to obtain the down pressure; a rotation speed sensor 17 is fixed through a through hole on the roller bracket 5, and the rotation speed sensor 17 is used for measuring the rotation speed of the snow roller 16; the rotating speed sensor 17 and the displacement sensor 20 are in signal connection with a controller of the motor B.
As shown in fig. 4, the conveying mechanism includes a conveying plate 15 and a base 8, the conveying plate 15 is matched with the base 8 through a guide groove, the conveying plate 15 can slide along the direction of the guide groove, a rack structure is designed at the bottom of the conveying plate 15, so as to be engaged with the gear 12 for transmission, a motor shaft of the motor a9 is matched with the gear 12 through a spline, the motor a9 is fixed and limited through a motor bracket a11, and meanwhile, the bolt 10 penetrates through a bolt hole on the motor bracket a11 to fixedly connect the motor bracket a11 to the base 8, so that the conveying mechanism realizes that the rotation of the motor is converted into the translation of the conveying plate 15; the arrangement of the pair of motors A9 on the base 8 ensures that the transfer plate 15 can be driven stably both at the beginning and at the end of its operation.
As shown in fig. 1 and 5, the driving mechanism comprises a motor B13, the motor B13 is fixed on two sides of the support frame 2 through a motor bracket B14, the motor bracket B14 can move up and down along the support frame 2 by adjusting a clamping bolt, the motor B13 is respectively matched with the roller 7 and the snow roller 16 through splines to realize power transmission, and simultaneously, the end surfaces of the roller 7 and the snow roller 16 are provided with bearings 6 to reduce the working friction force; the two ends of the roller 7 and the snow roller 16 are arranged on the roller bracket 5. The bottom end of the support frame 2 is fixed on the base 8 through a bolt.
As shown in fig. 6, 7 and 10, an outer cylindrical surface of the external gear rack 25 is provided with even rows of tooth grooves, in the embodiment, ten rows of tooth grooves are uniformly distributed at intervals of 36 degrees, the ten rows of tooth grooves are staggered into two groups, each group comprises five rows, and simultaneously, the tooth rollers (the tooth roller a21 and the tooth roller B22) with different thicknesses and different tooth tip shapes can be arranged in each group of tooth grooves according to requirements; the top of the tooth socket is provided with a fixing groove according to the outer contour of the cover plate 27 and used for embedding the cover plate 27; the limiting table is arranged at the bottom of the tooth groove and used for limiting the position of the limiting block 28; two layers of spline grooves are uniformly distributed on two end faces of the outer rack 25 in a step-shaped circumferential direction, wherein the spline grooves on the inner layer are embedded in the limiting bracket 26 for locking after the roller teeth are replaced, and the spline grooves on the outer layer are matched with a motor shaft of a motor B13 to realize transmission; the inner rack 24 is provided with supporting legs 33 in a circumferential array of 72 degrees, so that the roller tooth type can be adjusted once the inner rack 24 rotates by 36 degrees, the two end faces of the inner rack 24 are provided with round tables 32, the surfaces of the round tables 32 are provided with spline grooves, and the spline grooves of the round tables 32 and the inner layer spline grooves of the outer rack 25 can be embedded with the limiting bracket 26 to realize locking when the roller teeth are adjusted; the inner rack 24 is coaxially arranged inside the outer rack 25 and can circumferentially rotate, and the roller tooth type can be switched once every 36-degree rotation; fig. 7 is a simplified schematic diagram in which all the teeth are divided into two groups and arranged in a staggered manner, and two groups of teeth are shown in the schematic diagram.
As shown in fig. 8 and 9, a groove with the same cross-sectional shape as the roller tooth body is designed on the cover plate 27, so that the roller tooth body can move radially, the limit block 28 is arranged in the tooth groove of the outer rack 25, the bottom of the limit block 28 contacts with the inner rack 24 for limiting, the bolt 23 simultaneously passes through the through hole on the cover plate 27 and the threaded hole on the outer rack 25, so that the cover plate 27 is fixed on the outer rack 25, the cover plate 27 can limit the roller tooth, the damping spring 30 and the return spring 31 are arranged on the bracket of the roller tooth, the upper surface of the wireless pressure sensor 29 contacts with the bottom of the snowknife bracket, and the lower surface contacts with the limit block 28; the roller tooth A21 is the same with roller tooth B22 bracket, and the bracket upper surface is equipped with two round platforms 32 for it is spacing to return spring 31, and the round platform 32 of bracket lower surface is used for spacing damping spring 30, and the tooth body of two kinds of roller teeth is distinguished to some extent, and according to the condition on snow road surface, the thickness and the prong shape of two kinds of roller tooth body can corresponding adjustment.
As shown in fig. 11, the control method of the snow roller and snow coupling characteristic test system for the snow press comprises the following steps: according to different properties and hardness of the road surface, such as soft snow road surface, hard snow road surface, ice and snow road surface and the like, the external resistance moments applied to the working snow roller during working are different, so that the corresponding external resistance moments are divided into different sections according to different road surfaces and are differentThe working snow roller drive torque required for interval matching, e.g. external drag torque, being [ T ]1,T2]While in the interval, the output torque is controlled to be TaAnd T isa＝T2+ k, where k is an adjustment parameter, for the purpose of ensuring that the driving torque is constantly greater than the external resisting torque, a plurality of intervals may be divided according to the road surface condition, the driving torque matching principle of each interval is as described above, and no further description is given, and all the above parameters need to be determined according to experimental results and data:
during operation, an initial torque T is firstly provided to the snow roller driving motor B13 through the controller of the motor B, and after the snow roller 16 contacts with the snow surface, the resistance torque T obtained by converting the resistance parameter of the snow roller measured by the wireless pressure sensor 29 is converted0And determining the output torque of the controller of the motor B by judging the magnitude of the resistance torque parameter.
Referring to fig. 11, a driving method of a snow roller and snow coupling characteristic test system of a snow press capable of adjusting driving force according to working environment comprises the following specific working processes:
firstly, experimental material snow or other feasible substitutes are placed on a conveying plate 15, then a clamping bolt of a motor support B14 is loosened, a hand wheel 1 is rotated, the torque of the hand wheel 1 is transmitted to a rectangular threaded rod 19, then the torque is transmitted to a threaded support 3, the rotation freedom degree of the threaded support 3 is limited by a limit pin 4, so that the threaded support 3 converts the rotation of the hand wheel 1 into the movement along the axial direction, a boosting spring 18 is compressed in the movement process, the compression amount of the spring is obtained through the data of a displacement sensor 20 at the moment, further the data of the down pressure is obtained, and after the target pressure is reached, the clamping bolt of the motor support B14 is fastened to finish the adjustment of the down pressure; similarly, the downward pressure adjustment of the snow working roller 16 is performed in a consistent manner, and after the downward pressure adjustment is completed, the drum 7, the snow roller 16, and the conveying mechanism can be driven to perform an experiment.
The method comprises the following steps of (1) simulating the condition of the same road: in the experiment process, the lower pressure of the roller 7 can be adjusted by multiple groups to simulate different road surfaces, and the lower pressure of the snow roller 16 can also be adjusted by multiple groups, but in a single experiment, the roller 7, the snow roller 16 and the conveying mechanism are driven to work simultaneously; finally, a plurality of groups of data of control experiments are obtained, and the contact working mechanism of the snow roller 16 and the snow surface is analyzed.
And working condition II, variable road condition simulation: firstly, adjusting the downward pressure of the roller 7 to a certain value, not driving the snow roller 16, only driving the conveying mechanism to work for a short time, changing the downward pressure value of the roller 7 again after the conveying mechanism stops, then driving the conveying mechanism, not driving the snow roller 16, thereby simulating a composite road surface, wherein the hardness and compaction degree of the snow surface are different at different road sections; the downforce of the drum 7 is then released, the transport mechanism is operated in reverse, and the snow roller 16 begins to drive, whereby the rationality of the control strategy can be analyzed and modified in combination with the operational effects and the observed data of the working snow roller.
Working condition three, hard road surface working condition: on the road surface similar to ice or other high-hardness road surfaces, the snow roller limiting bracket 26 can be firstly released, then the inner tooth rack 24 is rotated for 36 degrees to change teeth, the roller teeth which are thicker, higher in strength and more suitable for the hard road surface work are changed, and after the teeth are changed, the limiting bracket 26 is jointed to be locked; the snow roller 16 is then assembled with a performance testing system for testing and observing the operating performance of the snow roller 16.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (8)
1. A snow roller and snow coupling characteristic test system for snow pressing vehicle operation is characterized by comprising: a pair of pressure adjusting devices, a conveying mechanism, a driving mechanism and a snow roller (16);
the pressure adjusting device comprises a hand wheel (1), a rectangular threaded rod (19), a displacement sensor (20) and a rotating speed sensor (17); the bottom end of the hand wheel (1) is matched with the rectangular threaded rod (19), and the threaded support (3) is arranged on the periphery of the rectangular threaded rod (19) and is matched with the rectangular threaded rod (19) through threads; a force increasing spring (18) is coaxially arranged outside the rectangular threaded rod (19), and two ends of the force increasing spring (18) are respectively matched with the threaded support (3) and the roller bracket (5); a displacement sensor (20) is fixed on the threaded support (3), and a rotating speed sensor (17) is fixed on the roller bracket (5) above the snow roller (16);
the conveying mechanism comprises a conveying plate (15) and a base (8), the conveying plate (15) is matched with the base (8) through a guide groove, a rack is designed at the bottom of the conveying plate (15), the rack is meshed with a gear (12), the gear (12) is installed on a motor shaft of a motor A (9), and the motor A (9) is fixed on the base (8);
the driving mechanism comprises a motor B (13), the motor B (13) is movably installed on two sides of the support frame (2), a motor shaft of the motor B (13) is respectively matched with the roller (7) and the snow roller (16), and two ends of the roller (7) and the snow roller (16) are installed on the roller support (5).
2. The snow roller snow working roller snow coupling characteristic testing system of claim 1, characterized in that said snow roller (16) comprises a rack mechanism, a gear changing device and a snow breaking mechanism;
the tooth rack mechanism comprises an outer tooth rack (25) and a cover plate (27), the cover plate (27) is fixed outside the outer tooth rack (25), two layers of spline grooves are uniformly distributed on two end faces of the outer tooth rack (27) in a stepped shape in the circumferential direction, and a tooth groove is formed in the outer cylindrical surface of the outer tooth rack (27);
the gear changing device comprises a limiting block (28), an inner gear rack (24) and a limiting support (26), the limiting support (26) is embedded in a spline groove in the end face of the inner gear rack (24), the limiting block (28) is arranged in a tooth groove of the outer gear rack (25), and the bottom of the limiting block (28) is in contact with the inner gear rack (24);
snow breaking mechanism includes tip, damping spring (30), return spring (31) and wireless pressure sensor (29), and damping spring (30) arrange in the bracket below of tip, and return spring (31) arrange in the bracket both sides of tip, and the upper surface and the contact of tip bracket bottom, lower surface and stopper (28) of wireless pressure sensor (29) contact.
3. The snow roller snow working coupling characteristic test system of claim 2, wherein the outer cylindrical surface of the outer rack (25) is provided with even rows of tooth grooves, the even rows of tooth grooves are divided into two groups in a staggered manner, and roller teeth with different thicknesses and different tooth tip shapes can be arranged in each group of tooth grooves according to requirements.
4. A snow roller snow working coupling characteristic testing system according to claim 2, characterized in that said internal rack (24) is provided with a circumferential array of supporting feet (33); round platforms (32) are designed on two end faces of the inner gear rack (24), spline grooves are formed in the surfaces of the round platforms (32), and the spline grooves of the round platforms (32) and inner layer key grooves of the outer gear rack (25) are embedded with the limiting support (26) after the roller teeth are adjusted.
5. The snow roller snow working coupling characteristic testing system of claim 3, wherein the bottom of the tooth slot is designed with a limit stop.
6. The snow roller snow working coupling characteristic test system of claim 1, wherein the motor B (13) is fixed on both sides of the support frame (2) through a motor bracket B (14), and the motor bracket B (14) moves up and down along the support frame (2) by adjusting a clamping bolt.
7. The snow roller and snow coupling characteristic testing system for snow press vehicle operation according to claim 2, wherein the two layers of spline grooves comprise an inner layer spline groove and an outer layer spline groove, the outer layer spline groove is matched with a motor shaft of the motor B (13), and the inner layer spline groove is embedded in the inner layer spline groove by a limiting bracket (26) for locking after the roller teeth are replaced.
8. The snow roller snow working coupling characteristic test system of claim 1, characterized in that said threaded support (3) and said drum support (5) are further limited by a limit pin (4).
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| CN202111252279.9A CN114112425B (en) | 2021-10-27 | 2021-10-27 | Snow roller and snow coupling characteristic test system for snow pressing vehicle operation |
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| CN202111252279.9A CN114112425B (en) | 2021-10-27 | 2021-10-27 | Snow roller and snow coupling characteristic test system for snow pressing vehicle operation |
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| CN114112425B CN114112425B (en) | 2024-04-09 |
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2021
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008014667A (en) * | 2006-07-03 | 2008-01-24 | Sumitomo Rubber Ind Ltd | Device for measuring tire performance on snow |
| CN109137812A (en) * | 2018-08-14 | 2019-01-04 | 江苏大学 | A kind of broad-adjustable Machine for removing snow from road of snow removing |
| CN212052552U (en) * | 2020-03-31 | 2020-12-01 | 北京雪之妙滑雪科技发展有限公司 | Snow plow tooth of snow pressing machine |
| CN112683673A (en) * | 2020-12-21 | 2021-04-20 | 哈尔滨商业大学 | Snow-removing rolling brush mechanical property test experiment table and test method |
| CN113186864A (en) * | 2021-04-20 | 2021-07-30 | 北京科技大学 | Snow plough device and snow pressing vehicle |
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| CN114112425B (en) | 2024-04-09 |
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