CN112683779A - Skates positioning mechanism for sliding friction coefficient measuring device - Google Patents
Skates positioning mechanism for sliding friction coefficient measuring device Download PDFInfo
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- CN112683779A CN112683779A CN202011459197.7A CN202011459197A CN112683779A CN 112683779 A CN112683779 A CN 112683779A CN 202011459197 A CN202011459197 A CN 202011459197A CN 112683779 A CN112683779 A CN 112683779A
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Abstract
The invention discloses an ice skate positioning mechanism for a sliding friction coefficient measuring device, which comprises a vertical movement component, a horizontal movement component and an ice skate or simulated ice experimental block for testing, wherein the vertical movement component is arranged on a fixed seat; the horizontal movement assembly is installed on a working platform of the measuring device and further comprises a pressure sensor, the pressure sensor is connected to a guide shaft fixing plate of the vertical movement assembly through a pressure sensor fixing seat, and a working end of the pressure sensor is in contact with the ice skate fixing seat. The invention has the advantages of ingenious conception, compact and reasonable structure, convenient and quick adjustment and stable operation, and realizes the position adjustment of force application pieces such as the ice skate blade or the simulated ice experimental block and the like through the reasonable arrangement of the vertical motion assembly and the horizontal motion assembly.
Description
Technical Field
The invention relates to the field of positioning mechanisms, in particular to an ice skate positioning mechanism for a sliding friction coefficient measuring device.
Background
The ice surface can be scratched by the movement on the ice, the requirement on the use environment of the real ice is high, and in order to maintain the flatness of the ice surface and ensure normal use, a large amount of manpower and material resources are required to be invested to maintain the ice surface. With the continuous research and development of new materials, various ice simulation materials are gradually applied to ice simulation yards, but the ice simulation materials made of different materials have different characteristics. How to develop an ice skate blade positioning mechanism applied to the simulation ice friction coefficient measurement becomes a technical problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
The invention aims to provide an ice skate positioning mechanism for a sliding friction coefficient measuring device, which can realize the driving of an ice skate and enable the ice skate to move in the horizontal and vertical directions.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to an ice skate positioning mechanism for a sliding friction coefficient measuring device, which comprises a vertical movement assembly and an ice skate or an ice simulation experiment block for testing, wherein the vertical movement assembly is arranged on a fixed seat, and the ice skate or the ice simulation experiment block is arranged at the working end of the vertical movement assembly.
Furthermore, the vertical motion assembly comprises an electric push rod, a guide shaft fixing plate, a linear optical axis and an installation assembly, the top of the electric push rod is installed on a flat plate protruding from the top of the fixing seat through an electric push rod connecting plate, the bottom of the electric push rod is connected with the guide shaft fixing plate through a connecting plate, the linear optical axis is connected onto the guide shaft fixing plate through an upper box-type bearing seat and a lower box-type bearing seat, a fixing balancing weight is arranged in the middle of the linear optical axis, the bottom end of the linear optical axis is connected with the ice skate or the simulated ice experiment block through the installation assembly, and the box-type bearing seats are installed on the guide shaft fixing plate;
the electric push rod moves in a telescopic mode to drive the guide shaft fixing plate to vertically move up and down through the connecting plate, weights with different numbers are placed on the fixed balancing weight to drive the linear optical axis and the ice skate or the simulated ice experiment block at the bottom to move downwards to contact with the plastic simulated ice disc or the turntable, so that sliding friction under different stress states is achieved, and sliding friction force is obtained through a matched force measuring device.
Still further, the electric push rod connecting plate is installed on the flat plate protruding from the top of the fixed seat through a bolt.
Still further, the connecting plate includes first connecting plate and the second connecting plate that sets up side by side, the guide shaft fixed plate passes through the bolt fastening on first connecting plate, second connecting plate are preceding, be provided with guiding mechanism between the bottom surface of first connecting plate, second connecting plate and the base.
Still further, guiding mechanism is including installing linear slide on the base, the bottom surface of first connecting plate, second connecting plate with linear slide sliding connection just follows linear slide vertical motion from top to bottom.
Still further, the installation component comprises a guide shaft connecting plate, an ice skate fixing seat and a sliding group, the guide shaft connecting plate is connected to the bottom end of the linear optical axis, the sliding group is arranged between the ice skate fixing seat and the guide shaft connecting plate, and the ice skate or the simulated ice experimental block is installed on the ice skate fixing seat.
Still further, the bottom of guide shaft fixed plate is provided with pressure sensor, pressure sensor passes through the pressure sensor fixing base and connects on the guide shaft fixed plate, pressure sensor's work end with the skates fixing base contacts.
Still further, the pressure sensor fixing seats are connected to the working side face of the guide shaft fixing plate through bolts.
Still further, still include the horizontal movement subassembly, the fixing base is installed on the horizontal movement subassembly and along the horizontal movement subassembly horizontal migration is close to or is kept away from emulation ice positioning mechanism, the horizontal movement subassembly is installed on measuring device's work platform.
Still further, the horizontal movement subassembly includes horizontal slip table keysets, horizontal slip table and step motor, the horizontal slip table passes through the horizontal slip table keysets is installed work platform is last, step motor's work end passes through the shaft coupling and is connected with the one end of lead screw, the other end of lead screw is rotatable to be installed on the horizontal slip table, threaded connection has the horizontal migration seat on the lead screw, the bottom of fixing base with the horizontal migration seat is connected, and follow under step motor's the drive lead screw horizontal migration.
Compared with the prior art, the invention has the beneficial technical effects that:
the invention relates to an ice skate positioning mechanism for a sliding friction coefficient measuring device, which comprises a vertical movement component, a horizontal movement component and a force application component for testing, wherein the force application component comprises an ice skate or an artificial ice experiment block; the vertical motion assembly is arranged on the fixed seat, the force application piece is driven by the electric push rod to complete the adjustment of the vertical position up and down, and then the force application piece is lowered by increasing the weight on the linear optical axis; the stepping motor drives the fixed seat to realize the movement of the horizontal position; the ice skate blade is characterized by also comprising a pressure sensor, wherein the pressure sensor is connected to the guide shaft fixing plate through a pressure sensor fixing seat, and the working end of the pressure sensor is contacted with the ice skate blade fixing seat; when the plastic simulation ice disk rotates, the plastic simulation ice disk is contacted with the ice skate blade or the simulation ice experiment block, and the friction coefficient of the plastic simulation ice disk and the simulation ice experiment block is measured through the pressure sensor. The invention has the advantages of ingenious conception, compact and reasonable structure, convenient and quick adjustment and stable operation, and realizes the position adjustment of force application pieces such as the ice skate blade or the simulated ice experimental block and the like through the reasonable arrangement of the vertical motion assembly and the horizontal motion assembly.
Drawings
The invention is further illustrated in the following description with reference to the drawings.
FIG. 1 is a front view of an ice skate positioning mechanism for a sliding friction coefficient measuring device in accordance with the present invention;
FIG. 2 is a sectional view of an ice skate positioning mechanism for the sliding friction coefficient measuring device of the present invention;
FIG. 3 is a bottom view of the ice skate positioning mechanism for the sliding friction coefficient measuring device of the present invention;
description of reference numerals: 1. a horizontal sliding table adapter plate; 2. a horizontal sliding table; 3. a stepping motor; 4. a fixed seat; 5. the electric push rod connecting plate; 6. an electric push rod; 7. a connecting plate; 7-1, a first connecting plate; 7-2, a second connecting plate; 8. a guide shaft fixing plate; 9. a linear optical axis; 10. a box-type bearing seat; 11. fixing a balancing weight; 12. a connecting seat; 13. a guide shaft connecting plate; 14. a sliding group; 15. a skate blade fixing seat; 16-1, an ice skate; 16-2, a simulated ice experiment block; 17. a linear slide rail; 18. a pressure sensor holder; 19. a pressure sensor.
Detailed Description
As shown in fig. 1 to 3, an ice skate positioning mechanism for a sliding friction coefficient measuring device comprises a vertical moving component and an ice skate 16-1 or an ice simulation experiment block 16-2 for testing, wherein the vertical moving component is mounted on a fixed seat 4, and the ice skate 16-1 or the ice simulation experiment block 16-2 is mounted at a working end of the vertical moving component.
Specifically, the vertical motion assembly comprises an electric push rod 6, a guide shaft fixing plate 8, a linear optical axis 9 and a mounting assembly, the top of the electric push rod 6 is mounted on a flat plate protruding from the top of the fixed seat 4 through an electric push rod connecting plate 5, and the electric push rod connecting plate 5 is mounted on the flat plate protruding from the top of the fixed seat 4 through a bolt; the bottom of the electric push rod 6 is connected with the guide shaft fixing plate 8 through a connecting plate, the linear optical axis 9 is connected to the guide shaft fixing plate 8 through an upper box-type bearing seat and a lower box-type bearing seat 10, a fixed balancing weight 11 is arranged in the middle of the linear optical axis 9, the bottom end of the linear optical axis 9 is connected with the ice skate 16-1 or the simulated ice experiment block 16-2 through the mounting assembly, and the box-type bearing seats 10 are mounted on the guide shaft fixing plate 8 through a connecting seat 12; the electric push rod 6 moves in a telescopic mode to drive the guide shaft fixing plate 8 to vertically move up and down through the connecting plate 7, weights with different numbers are placed on the fixed balancing weight 11 to drive the linear optical axis 9 and the ice skate 16-1 or the simulated ice experiment block 16-2 at the bottom to move downwards to contact with the plastic simulated ice disc or the turntable, so that sliding friction under different stress states is achieved, and sliding friction force is obtained through a matched force measuring device. Specifically, the straight line optical axis 9 can be set to one, two or more, sets for according to actual need, and box bearing frame 10 arranges and the straight line optical axis 9 phase-match, and the structure of weight makes corresponding change according to the quantity and the arrangement mode of straight line optical axis 9 can.
The connecting plates comprise a first connecting plate 7-1 and a second connecting plate 7-2 which are arranged side by side, the guide shaft fixing plate 8 is fixed on the front surfaces of the first connecting plate 7-1 and the second connecting plate 7-2 through bolts, and guide mechanisms are arranged between the bottom surfaces of the first connecting plate 7-1 and the second connecting plate 7-2 and the base 4. Specifically, the guide mechanism comprises a linear slide rail 17 installed on the base 4, and the bottom surfaces of the first connecting plate 7-1 and the second connecting plate 7-2 are connected with the linear slide rail 17 in a sliding manner and vertically move up and down along the linear slide rail 17.
The mounting assembly comprises a guide shaft connecting plate 13 and an ice skate fixing seat 15, the guide shaft connecting plate 13 is connected to the bottom end of the linear optical axis 9, a sliding set 14 is arranged between the ice skate fixing seat 15 and the guide shaft connecting plate 13, and the ice skate 16-1 or the simulated ice experimental block 16-2 is mounted on the ice skate fixing seat 15. Specifically, the sliding set 14 may adopt a cross roller linear guide sliding set, two or two sets of sliding rails which move relative to each other are respectively connected to the guide shaft connecting plate 13 and the ice skate fixing seat 15 through screws, when the ice skate 16-1 or the simulated ice experimental block 16-2 contacts with a plastic simulated ice disk or a rotary table which rotates below to generate sliding friction, the ice skate fixing seat 15 is forced to drive the sliding rails connected with the ice skate fixing seat to horizontally move, the side wall of the ice skate fixing seat 15 contacts with a pressure sensor, and the pressure sensor measures and transmits the generated lateral force, namely the sliding friction force, to the controller.
Specifically, a pressure sensor 19 is arranged at the bottom of the guide shaft fixing plate 8, the pressure sensor 19 is connected to the guide shaft fixing plate 8 through a pressure sensor fixing seat 18, and a working end of the pressure sensor 19 is in contact with the ice skate blade fixing seat 15.
Specifically, the ice-making machine further comprises a horizontal movement assembly, the fixed seat 4 is installed on the horizontal movement assembly and moves horizontally along the horizontal movement assembly to be close to or far away from the simulated ice positioning mechanism, and the horizontal movement assembly is installed on a working platform of the measuring device. The horizontal motion subassembly includes horizontal slip table keysets 1, horizontal slip table 2 and step motor 3, horizontal slip table 2 passes through horizontal slip table keysets 1 is installed work platform is last, step motor 3's work end passes through the shaft coupling and is connected with the one end of lead screw, the other end of lead screw is rotatable to be installed horizontal slip table 2 is last, threaded connection has on the horizontal migration seat on the lead screw, the bottom of fixing base 4 with the horizontal migration seat is connected, and follow under step motor 3's the drive lead screw horizontal migration.
In addition, in another embodiment, the horizontal motion assembly comprises a horizontal sliding table and an air cylinder, the horizontal sliding table is installed on the working platform through the adapter plate of the horizontal sliding table, the working end of the air cylinder is connected with one end of the fixed base, a guide key is arranged between the bottom of the fixed base and the horizontal sliding table, and the air cylinder drives the fixed base to horizontally move along the guide key. The air cylinder for driving can be replaced by an oil cylinder or a linear electric cylinder so as to realize the horizontal linear movement of the horizontal sliding table.
The working process of the invention is as follows:
the first mode of operation, namely the operation of measuring the friction coefficient between the ice blade 16-1 and the plastic simulation ice disk 5, is as follows:
firstly, mounting of the ice skate blade: the working rod of the electric push rod 6 contracts, the first connecting plate 7-1 and the second connecting plate 7-2 drive the guide shaft fixing plate 8 and the connecting seat 12 to integrally ascend along the linear slide rail 17, the connecting seat 12 contacts the fixed counterweight block 11 after ascending for a certain distance, the connecting seat 12 continuously ascends to drive the fixed counterweight block 11 to ascend, so that the linear optical axis 9, the guide shaft connecting plate 13, the sliding set 14 and the ice skate fixing seat 15 integrally ascend, and the ice skate 16-1 is fixed on the ice skate fixing seat 15 after reaching a certain height; then, the plastic simulation ice disc on the simulation ice positioning mechanism is fixed on the turntable through the locking cap and the bolt, and the firmness and the flatness of the installation of the plastic simulation ice disc are guaranteed.
Secondly, the ice skate blade is adjusted in a descending way: the working rod of the electric push rod 6 extends out to enable the working rod to descend along the linear slide rail 17, the guide shaft fixing plate 8 and the connecting seat 12 are driven to descend integrally through the connecting plate 7-1 and the second connecting plate 7-2, when the connecting seat 12 is separated from the fixed balancing weight 11 and descends continuously, the ice skate 16-1, the ice skate fixing seat 15, the sliding set 14, the guide shaft connecting plate 13 and the linear optical axis 9 keep the current positions still as the ice skate 16-1 is supported on the plastic simulation ice disc, and a gap is formed between the fixed balancing weight 11 and the connecting seat 12 along with the continuous descending of the electric push rod 6, so that the distance between the fixed balancing weight 11 and the connecting seat 12 can be calculated;
then, generation of the rubbing motion: when the ice skate blade is in contact with the plastic simulation ice disc below, the weight is placed on the fixed balancing weight 11, the ice skate blade is in close contact with the plastic simulation ice disc under positive pressure, the servo motor on the simulation ice positioning mechanism rotates clockwise to drive the plastic simulation ice disc to rotate to provide clockwise tangential friction force for the ice skate blade 16-1, the friction force is transmitted to the pressure sensor 19 in a lossless manner through the sliding group 14, and when the rotating speed is stable, the sliding friction force between the ice skate blade 16-1 and the plastic simulation ice disc is measured.
In order to improve the utilization rate of the plastic simulation ice disc, the stepping motor on the horizontal movement assembly can drive the fixed seat to move back and forth, so that the ice skate 16-1 slides on different radiuses of the plastic simulation ice disc.
The second working mode, namely the working process of measuring the friction coefficient between the simulated ice experimental block 16-2 and the rotary disc, is as follows:
firstly, mounting of a simulation ice experiment block: the working rod of the electric push rod 6 contracts, the guide shaft fixing plate 8 and the connecting seat 12 are driven to ascend integrally along the linear slide rail 17 through the connecting plate 7-1 and the second connecting plate 7-2, the connecting seat 12 can contact with the fixed balancing weight 11 after ascending for a certain distance, the connecting seat 12 can drive the fixed balancing weight 11 to ascend continuously, so that the linear optical axis 9, the guide shaft connecting plate 13, the sliding set 14 and the ice skate fixing seat 15 can move up integrally, after reaching a certain height, the simulation ice experiment block 16-2 is fixed on the ice skate fixing seat 15, and meanwhile, the plastic simulation ice disc on the simulation ice positioning mechanism is removed from the rotary table.
Furthermore, the height of the simulation ice experiment block is adjusted, the working rod of the electric push rod 6 extends out to enable the working rod to descend along the linear slide rail 17, the guide shaft fixing plate 8 and the connecting seat 12 are driven to integrally descend by the connecting plate 7-1 and the second connecting plate 7-2, when the connecting seat 12 is separated from the fixed balancing weight 11 and then descends continuously, the simulation ice experiment block 16-2 is supported on the turntable, so that the simulation ice experiment block 16-2, the ice skate fixing seat 15, the sliding group 14, the guide shaft connecting plate 13 and the linear optical axis 9 keep the existing positions, and a fixed clearance value is set between the fixed balancing weight 11 and the connecting seat 12 along with the continuous descending of the electric push rod 6;
then, generation of the sliding friction motion: when the simulated ice experimental block is contacted with a testing piece II below, the electric push rod 6 stops descending, the weight is placed on the fixed balancing weight 11, the simulated ice experimental block is tightly contacted with a rotary disc on the simulated ice positioning mechanism under positive pressure, a servo motor on the simulated ice positioning mechanism rotates clockwise, the rotary disc gives a tangential friction force in the clockwise direction to the simulated ice experimental block 16-2, the sliding friction force is transmitted to the pressure sensor 19 without loss through the sliding group 14, and when the rotating speed is stable, the sliding friction force between the simulated ice experimental block 16-2 and the rotary disc is measured.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. The utility model provides a sliding friction coefficient is skates positioning mechanism for measuring device which characterized in that: the device comprises a vertical movement component and an ice skate (16-1) or an ice simulation experiment block (16-2) for testing, wherein the vertical movement component is installed on a fixed seat (4), and the ice skate (16-1) or the ice simulation experiment block (16-2) is installed at the working end of the vertical movement component.
2. The ice skate positioning mechanism for a sliding friction coefficient measuring device according to claim 1, wherein: the vertical motion component comprises an electric push rod (6), a guide shaft fixing plate (8), a linear optical axis (9) and a mounting component, the top of the electric push rod (6) is arranged on a flat plate protruding from the top of the fixed seat (4) through an electric push rod connecting plate (5), the bottom of the electric push rod (6) is connected with the guide shaft fixing plate (8) through a connecting plate (7), the linear optical axis (9) is connected to the guide shaft fixing plate (8) through an upper box-type bearing seat and a lower box-type bearing seat (10), a fixed balancing weight (11) is arranged in the middle of the linear optical axis (9), the bottom end of the linear optical axis (9) is connected with the ice skate (16-1) or the simulated ice experimental block (16-2) through the mounting component, the box-type bearing seat (10) is arranged on the guide shaft fixing plate (8) through a connecting seat (12); the electric push rod (6) is driven by the connecting plate (7) to move in a telescopic mode to drive the guide shaft fixing plate (8) to vertically move up and down, weights with different numbers are placed on the fixed balancing weight (11) to drive the linear optical axis (9) and the bottom ice skate (16-1) or the simulated ice experiment block (16-2) to move downwards to contact with the plastic simulated ice disc or the turntable, so that sliding friction under different stress states is achieved, and sliding friction force is obtained through the force measuring device.
3. The ice skate positioning mechanism for a sliding friction coefficient measuring device according to claim 2, wherein: the electric push rod connecting plate (5) is installed on a flat plate protruding from the top of the fixed seat (4) through a bolt.
4. The ice skate positioning mechanism for a sliding friction coefficient measuring device according to claim 2, wherein: the connecting plates comprise a first connecting plate (7-1) and a second connecting plate (7-2) which are arranged side by side, the guide shaft fixing plate (8) is fixed on the front surfaces of the first connecting plate (7-1) and the second connecting plate (7-2) through bolts, and guide mechanisms are arranged between the bottom surfaces of the first connecting plate (7-1) and the second connecting plate (7-2) and the base (4).
5. The ice skate positioning mechanism for a sliding friction coefficient measuring device according to claim 4, wherein: the guide mechanism comprises a linear slide rail (17) installed on the base (4), and the bottom surfaces of the first connecting plate (7-1) and the second connecting plate (7-2) are connected with the linear slide rail (17) in a sliding mode and vertically move up and down along the linear slide rail (17).
6. The ice skate positioning mechanism for a sliding friction coefficient measuring device according to claim 2, wherein: the mounting assembly comprises a guide shaft connecting plate (13) and an ice skate fixing seat (15), the guide shaft connecting plate (13) is connected to the bottom end of the linear optical axis (9), a sliding set (14) is arranged between the ice skate fixing seat (15) and the guide shaft connecting plate (13), and an ice skate (16-1) or an artificial ice experiment block (16-2) is mounted on the ice skate fixing seat (15).
7. The ice skate positioning mechanism for a sliding friction coefficient measuring device according to claim 6, wherein: the bottom of guide shaft fixed plate (8) is provided with pressure sensor (19), pressure sensor (19) pass through pressure sensor fixing base (18) and connect on guide shaft fixed plate (8), the work end of pressure sensor (19) with skates fixing base (15) contact.
8. The ice skate positioning mechanism for a sliding friction coefficient measuring device according to claim 7, wherein: and the pressure sensor fixing seats (18) are connected to the working side surface of the guide shaft fixing plate (8) through bolts.
9. The ice skate positioning mechanism for a sliding friction coefficient measuring device according to claim 1, wherein: the ice-making machine is characterized by further comprising a horizontal movement assembly, wherein the fixed seat (4) is installed on the horizontal movement assembly and moves horizontally along the horizontal movement assembly to be close to or far away from the simulated ice positioning mechanism, and the horizontal movement assembly is installed on a working platform of the measuring device.
10. The ice skate positioning mechanism for a sliding friction coefficient measuring device according to claim 9, wherein: the horizontal movement subassembly includes horizontal slip table keysets (1), horizontal slip table (2) and step motor (3), horizontal slip table (2) are passed through horizontal slip table keysets (1) are installed work platform is last, the work end of step motor (3) is passed through the shaft coupling and is connected with the one end of lead screw, the other end of lead screw is rotatable to be installed on horizontal slip table (2), threaded connection has on the horizontal migration seat on the lead screw, the bottom of fixing base (4) with the horizontal migration seat is connected, and follow under the drive of step motor (3) lead screw horizontal migration.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011459197.7A CN112683779B (en) | 2020-12-11 | 2020-12-11 | Skates positioning mechanism for sliding friction coefficient measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011459197.7A CN112683779B (en) | 2020-12-11 | 2020-12-11 | Skates positioning mechanism for sliding friction coefficient measuring device |
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| CN112683779A true CN112683779A (en) | 2021-04-20 |
| CN112683779B CN112683779B (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113324854A (en) * | 2021-05-31 | 2021-08-31 | 西华大学 | Soil sample strength testing device and experimental method thereof |
| WO2023164958A1 (en) * | 2022-03-02 | 2023-09-07 | 东北大学 | Robot for measuring translational friction coefficient between skis and snow surface |
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| CN110530752A (en) * | 2019-09-30 | 2019-12-03 | 济南益华摩擦学测试技术有限公司 | A kind of rotation reciprocating friction and wear testing machine |
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| CN101407032A (en) * | 2008-11-06 | 2009-04-15 | 燕山大学 | Four-dimensional skate edge grinding apparatus |
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|---|---|
| CN112683779B (en) | 2022-07-19 |
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