CN113857879B - Device for reducing friction coefficient of sliding plate - Google Patents
Device for reducing friction coefficient of sliding plate Download PDFInfo
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- CN113857879B CN113857879B CN202111141586.XA CN202111141586A CN113857879B CN 113857879 B CN113857879 B CN 113857879B CN 202111141586 A CN202111141586 A CN 202111141586A CN 113857879 B CN113857879 B CN 113857879B
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- sliding plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
- B23Q1/017—Arrangements of ways
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
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Abstract
The invention discloses a device for reducing friction coefficient of a sliding plate, which relates to the technical field of machine tool machining and comprises a machine tool guide rail and a ball guide rail block, wherein the upper end of the machine tool guide rail is connected with a guide rail plate, the guide rail plate is connected with the machine tool guide rail through a first bolt, the middle part of the upper end of the guide rail plate is provided with a sliding groove, and the ball guide rail block is connected to the inner side of the sliding groove. According to the invention, through the mutual matching of the components, the friction coefficient can be reduced, the position accuracy of the sliding plate in the actual moving process can be effectively ensured, the actual position of the sliding plate in the moving process can be monitored in real time, when the sliding plate deviates, the actual position can be detected quickly, an alarm is sent to remind a worker to correct the sliding plate in time, the condition that the deviation affects the machining precision of a machine tool is avoided, and the sliding friction between the sliding plate and the guide rail is changed into rolling friction through the guide rail block of the ball, so that the stability and the machining precision of the machine tool are improved, and the machining quality is ensured.
Description
Technical Field
The invention relates to the technical field of machine tool machining, in particular to a device for reducing the friction coefficient of a sliding plate.
Background
Machine tools are machines for manufacturing machines, also called machine tools or machine tools, which are conventionally referred to as machine tools for short. Generally, the machining method is divided into a metal cutting machine, a forging machine, a woodworking machine and the like. The methods for machining machine parts in modern machine manufacturing are numerous: in addition to cutting, casting, forging, welding, stamping, extrusion, etc., but in general, parts requiring high precision and fine surface roughness are finished by cutting on a machine tool, and a slide plate is one of important parts in the machine tool, and the movement of the slide plate directly affects the machining precision of the machine tool.
The friction coefficient of the sliding plate on the market is higher, the stability of the sliding plate movement is poorer, and the machining precision of the machine tool is directly influenced.
Disclosure of Invention
The present invention is directed to a device for reducing the friction coefficient of a skateboard to solve the above-mentioned problems.
In order to achieve the purpose, the invention provides the following technical scheme: a device for reducing friction coefficient of a sliding plate comprises a machine tool guide rail and a ball guide rail block, wherein the upper end of the machine tool guide rail is connected with a guide rail plate, the guide rail plate is connected with the machine tool guide rail through a first bolt, the middle part of the upper end of the guide rail plate is provided with a chute, the ball guide rail block is connected to the inner side of the chute, the upper end of the ball guide rail block is connected with an inclined iron, the ball guide rail block is connected with the inclined iron through a second bolt, the upper end of the inclined iron is connected with a sliding plate main body, the middle part of one side of the ball guide rail block is provided with a positioning groove, a positioning assembly for positioning the sliding plate is arranged on one side of the upper end of the guide rail plate, and a detection assembly for sliding plate deviation detection is arranged in the middle part of the lower end of the inclined iron; the guide rail plate and the machine tool guide rail are distributed in a parallel manner, the sliding groove and the guide rail plate are of an integrated structure, and the guide rail plate is in threaded connection with the machine tool guide rail through a first bolt; the ball guide rail block and the wedge are vertically distributed, and the upper surface of the wedge is mutually attached to the lower surface of the sliding plate main body.
Preferably, the ball guide blocks are symmetrically arranged in two groups about the center of the wedge, and each group of the ball guide blocks is provided with three ball guide blocks which are distributed at equal intervals.
Preferably, the positioning assembly comprises a positioning block, a rubber layer, a mounting hole, a mounting bolt, a limiting ring, a limiting groove, a threaded hole and a limiting sheet, the rubber layer is arranged on the lower surface of the positioning block, the mounting hole is formed in the upper end of the positioning block, the mounting bolt is arranged in the mounting hole in a penetrating mode, the limiting ring is arranged at the lower end of the mounting hole, the limiting groove is connected to the outer side of the limiting ring, the threaded hole is formed in the lower end of the middle of the limiting groove, and the limiting sheet is arranged on one side of the positioning block.
Preferably, the rubber layer and the positioning block are distributed in parallel, and the rubber layer is connected with the positioning block in an embedded mode.
Preferably, the outer diameter of the limiting ring is matched with the inner diameter of the limiting groove, and the limiting ring and the mounting hole are concentrically distributed.
Preferably, the limiting pieces and the positioning blocks are distributed in parallel, the limiting pieces and the positioning blocks are of an integrated structure, and two positioning blocks are arranged.
Preferably, the detection assembly comprises a fixing base, a fixing bolt, a connecting slide rail, a connecting slide block, a positioning knob, a placement block, a distance sensor and an alarm lamp, wherein the fixing bolt is arranged at the four corners of the fixing base in a penetrating mode, the connecting slide rail is arranged in the middle of the lower end of the fixing base, the lower end of the connecting slide rail is connected with the connecting slide block, the positioning knob is arranged at the two ends of the connecting slide block in a penetrating mode, the placement block is arranged in the middle of the lower end of the middle of the connecting slide block, the distance sensor is arranged on the two sides of the placement block, and the alarm lamp is arranged in the middle of the placement block.
Preferably, the center point of the mounting block coincides with the center point of the connecting slide block, and the positioning knob penetrates through the inner sides of the two ends of the connecting slide block.
Preferably, the central axis of the connecting slide rail coincides with the central axis of the fixing seat, and the mounting block forms a sliding connection with the fixing seat through the connecting slide block and the connecting slide rail.
Preferably, the distance sensors are symmetrically arranged about the center of the mounting block, and the distance sensors are vertically distributed with the mounting block.
The invention provides a device for reducing the friction coefficient of a sliding plate, which has the following beneficial effects: the device for reducing the friction coefficient of the sliding plate can effectively ensure the accuracy of the position of the sliding plate in the actual moving process while reducing the friction coefficient through the mutual matching of the components, can monitor the actual position of the sliding plate in the moving process in real time, can quickly detect the sliding plate when the sliding plate deviates, sends an alarm to remind a worker to correct the sliding plate in time, avoids the condition that the deviation affects the machining precision of a machine tool, and changes the sliding friction between the sliding plate and a guide rail into rolling friction through a guide rail block of a ball, so that the stability and the machining precision of the machine tool are improved, and the machining quality is ensured;
1. the slide plate driving device can ensure the accuracy of the position between the slide plate and the machine tool guide rail through the parallel guide rail plates and the machine tool guide rail, the guide rail plates connected with the machine tool guide rail through the first bolts are convenient to mount and dismount while the connection between the slide plate and the machine tool guide rail is ensured to be firm, the guide rail plates are convenient to maintain and replace, the working continuity and effectiveness of the slide plate driving device are ensured, the ball guide rail blocks and the inclined iron which are vertically distributed ensure the stability of the slide plate main body in the process of driving the slide plate main body through the inclined iron, the phenomenon that the slide plate main body is inclined in the moving process is avoided, and the machining precision of the machine tool is improved.
2. The rubber layer arranged on the lower surface of the positioning block can play a good buffering effect, the situation that the positioning block floats up and down due to the fact that a mounting bolt for fixing the positioning block is loosened due to long-term working vibration of a machine tool is avoided, the limiting ring arranged at the lower end of the mounting hole is matched with the limiting groove arranged on one side of the upper end of the guide rail plate, a good limiting effect can be played on the positioning block, the situation that the positioning block deviates left and right is avoided, meanwhile, the limiting piece arranged on one side of the positioning block is matched with the positioning groove arranged on one side of the ball guide rail block, a good positioning effect can be played on the ball guide rail block, the situation that the sliding plate main body deviates due to the fact that the ball guide rail block deviates left and right when moving in the sliding groove is avoided, and the machining precision of the machine tool is ensured.
3. The invention can well detect whether the ball guide rail block and the sliding chute shift or not in the moving process through the detection component arranged in the middle of the lower end of the inclined iron, judge whether the sliding plate main body shifts or not through whether the distance between the mounting block and the machine tool guide rails on two sides changes or not in the moving process of the sliding plate main body through the distance sensors arranged on two sides of the mounting block, when the sliding plate main body shifts is detected, the alarm lamp arranged in the middle of the mounting block sounds to remind a worker to correct the shifted sliding plate main body in time, thereby ensuring the continuity and effectiveness of high-precision machining of the machine tool, the connecting slide rail arranged in the middle of the lower end of the fixed seat is matched with the connecting slide block arranged in the middle of the upper end of the mounting block, so that the mounting block can slide at the lower end of the fixed seat, the mounting block can be conveniently detached and installed, and the distance sensor and the alarm lamp can be conveniently maintained and replaced, thereby guarantee to slide main part removal detection's continuation and validity.
Drawings
FIG. 1 is a schematic side view of a device for reducing the coefficient of friction of a skateboard according to the present invention;
FIG. 2 is a schematic side view of a half-section of an apparatus for reducing the coefficient of friction of a skateboard in accordance with the present invention;
FIG. 3 is a schematic view of a curing mechanism of an apparatus for reducing the coefficient of friction of a slide according to the present invention;
FIG. 4 is a schematic top view of the main body of the slider for reducing the coefficient of friction of the slider according to the present invention;
FIG. 5 is a schematic top view of a rail plate of the device for reducing the friction coefficient of a sliding plate according to the present invention;
FIG. 6 is a schematic bottom view of a detecting assembly of an apparatus for reducing the friction coefficient of a skateboard according to the present invention.
In the figure: 1. a machine tool guide rail; 2. a guide rail plate; 3. a first bolt; 4. a chute; 5. a ball guide block; 6. a second bolt; 7. a wedge; 8. a skateboard body; 9. positioning a groove; 10. a positioning assembly; 1001. positioning blocks; 1002. a rubber layer; 1003. mounting holes; 1004. installing a bolt; 1005. a limiting ring; 1006. a limiting groove; 1007. a threaded hole; 1008. a limiting sheet; 11. a detection component; 1101. a fixed seat; 1102. fixing the bolt; 1103. connecting a slide rail; 1104. connecting the sliding block; 1105. positioning a knob; 1106. a mounting block; 1107. a distance sensor; 1108. an alarm lamp.
Detailed Description
Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a reduce device of slide coefficient of friction, including lathe guide rail 1 and ball guide block 5, the upper end of lathe guide rail 1 is connected with guide rail plate 2, and guide rail plate 2 is connected with lathe guide rail 1 through first bolt 3, spout 4 has been seted up at the upper end middle part of guide rail plate 2, ball guide block 5 is connected in the inboard of spout 4, the upper end of ball guide block 5 is connected with wedge 7, and ball guide block 5 is connected with wedge 7 through second bolt 6, the upper end of wedge 7 is connected with slide main part 8, one side middle part of ball guide block 5 has seted up constant head tank 9, locating component 10 for slide location settles in upper end one side of guide rail plate 2, detecting component 11 for slide skew detection settles in the lower extreme middle part of wedge 7; the guide rail plate 2 and the machine tool guide rail 1 are distributed in a parallel shape, the sliding chute 4 and the guide rail plate 2 are of an integrated structure, and the guide rail plate 2 is in threaded connection with the machine tool guide rail 1 through a first bolt 3; the ball guide rail blocks 5 and the inclined iron 7 are vertically distributed, and the upper surface of the inclined iron 7 is mutually attached to the lower surface of the sliding plate main body 8; two groups of the ball guide rail blocks 5 are symmetrically arranged at the central position of the inclined iron 7, three groups of the ball guide rail blocks 5 are arranged, and the ball guide rail blocks 5 are distributed at equal intervals;
the operation is as follows, the guide rail plate 2 and the machine tool guide rail 1 which are distributed in parallel can ensure the accuracy of the positions between the guide rail plate 2 and the machine tool guide rail 1, the guide rail plate 2 which is connected with the machine tool guide rail 1 through the first bolt 3 is convenient to mount and dismount while the connection between the guide rail plate 2 and the machine tool guide rail is ensured to be firm, the guide rail plate 2 is convenient to maintain and replace, the continuity and the effectiveness of the working of the device are ensured, the ball guide block 5 and the inclined iron 7 which are distributed in vertical shape ensure the stability of the sliding plate main body 8 in the driving process of the sliding plate main body 8 through the inclined iron 7, the condition that the sliding plate main body 8 inclines in the moving process is avoided, and the processing precision of the machine tool is improved;
referring to fig. 1, 3, 4 and 5, the positioning assembly 10 includes a positioning block 1001, a rubber layer 1002, a mounting hole 1003, a mounting bolt 1004, a retaining ring 1005, a retaining groove 1006, a threaded hole 1007 and a retaining sheet 1008, wherein the rubber layer 1002 is disposed on the lower surface of the positioning block 1001, the mounting hole 1003 is disposed on the upper end of the positioning block 1001, the mounting bolt 1004 is disposed on the inner side of the mounting hole 1003, the retaining ring 1005 is disposed on the lower end of the mounting hole 1003, the retaining groove 1006 is connected to the outer side of the retaining ring 1005, the threaded hole 1007 is disposed on the lower end of the middle portion of the retaining groove 1006, the retaining sheet 1008 is disposed on one side of the positioning block 1001, the rubber layer 1002 is disposed in parallel with the positioning block 1001, the rubber layer 1002 is embedded in the positioning block 1001, the outer diameter of the retaining ring 1005 is matched with the inner diameter of the retaining groove 1006, the retaining ring 1005 and the mounting hole 1003 are disposed in the same circle center, the retaining sheet 1008 is disposed in parallel with the positioning block 1001, the limiting piece 1008 and the positioning block 1001 are of an integrated structure, and two positioning blocks 1001 are arranged;
the rubber layer 1002 arranged on the lower surface of the positioning block 1001 can play a good role in buffering, the situation that the positioning block 1001 floats up and down due to looseness of a mounting bolt 1004 for fixing the positioning block 1001 caused by long-term working vibration of a machine tool is avoided, the limiting ring 1005 arranged at the lower end of the mounting hole 1003 is matched with the limiting groove 1006 arranged on one side of the upper end of the guide rail plate 2, a good limiting effect can be played on the positioning block 1001, the situation that the positioning block 1001 deviates left and right is avoided, meanwhile, the limiting piece 1008 arranged on one side of the positioning block 1001 is matched with the positioning groove 9 arranged on one side of the ball guide rail block 5, a good positioning effect can be played on the ball guide rail block 5, the situation that the sliding plate main body 8 deviates left and right when the ball guide block 5 moves in the sliding groove 4 is avoided, and the machining precision of the machine tool is ensured;
referring to fig. 6, the detecting assembly 11 includes a fixing base 1101, a fixing bolt 1102, a connecting slide rail 1103, a connecting slide block 1104, a positioning knob 1105, a mounting block 1106, a distance sensor 1107 and two warning lamps 1108, wherein the fixing bolt 1102 is inserted through four corners of the fixing base 1101, the connecting slide rail 1103 is disposed in the middle of the lower end of the fixing base 1101, the connecting slide block 1104 is connected to the lower end of the connecting slide rail 1103, the positioning knob 1105 is inserted through two ends of the connecting slide block 1104, the mounting block 1106 is disposed in the middle of the lower end of the middle of the connecting slide block 1104, the distance sensors 1107 are disposed on two sides of the mounting block 1106, the warning lamp 1108 is disposed in the middle of the mounting block 1106, the central axis of the connecting slide rail 1103 coincides with the central axis of the fixing base 1101, the mounting block 1106 forms a sliding connection with the fixing base 1101 through the connecting slide block 1104 and the connecting slide rail 1103, the distance sensors 1107 are symmetrically disposed at two positions with respect to the central position of the mounting block 1106, the distance sensor 1107 and the mounting block 1106 are vertically distributed, the central point of the mounting block 1106 is coincident with the central point of the connecting slide block 1104, and the positioning knob 1105 penetrates through the inner sides of the two ends of the connecting slide block 1104;
the operation is as follows, the detection component 11 arranged in the middle of the lower end of the inclined iron 7 can well detect whether the ball guide rail block 5 and the chute 4 move to deviate or not in the moving process, whether the sliding plate main body 8 deviates or not is judged by judging whether the distance between the mounting block 1106 and the machine tool guide rails 1 on two sides changes or not in the moving process of the sliding plate main body 8 through the distance sensors 1107 arranged on two sides of the mounting block 1106, when the deviation of the sliding plate main body 8 is detected, the alarm lamp 1108 arranged in the middle of the mounting block 1106 sounds to remind a worker to correct the deviated sliding plate main body 8 in time, so that the continuity and the effectiveness of high-precision machining of the machine tool are ensured, the connecting slide rail 1103 arranged in the middle of the lower end of the fixing seat 1101 is matched with the connecting slide block 1104 arranged in the middle of the upper end of the mounting block 1106, so that the mounting block 1106 can slide at the lower end of the fixing seat 1101, thereby be convenient for dismantle and install settling block 1106, be convenient for maintain and change distance sensor 1107 and alarm lamp 1108 to guarantee to slide main part 8 removal detection's continuation and validity.
In summary, the device for reducing the friction coefficient of the sliding plate is used, firstly, the guide rail plate 2 is installed on the machine tool guide rail 1 through the first bolt 3, the guide rail plate 2 connected with the machine tool guide rail 1 through the first bolt 3 is convenient to install and disassemble while ensuring firm connection, the guide rail plate 2 is convenient to maintain and replace, then the sliding plate main body 8 is placed at the upper end of the guide rail plate 2 through the ball guide block 5, the ball guide block 5 and the inclined iron 7 which are vertically distributed ensure the stability of the sliding plate main body 8 in the driving process of the sliding plate main body 8 through the inclined iron 7 by the ball guide block 5, then the positioning block 1001 is installed at one side of the upper end of the guide rail plate 2, the rubber layer 1002 arranged on the lower surface of the positioning block 1001 can play a good buffering effect, and the looseness of the installation bolt 1004 for fixing the positioning block 1001 due to long-term working vibration of the machine tool is avoided, when the positioning block 1001 is caused to float up and down, the limiting ring 1005 arranged at the lower end of the mounting hole 1003 is matched with the limiting groove 1006 arranged at one side of the upper end of the guide rail plate 2, so that the positioning block 1001 can be well limited, the left and right deviation of the positioning block 1001 can be avoided, meanwhile, the limiting piece 1008 arranged at one side of the positioning block 1001 is matched with the positioning groove 9 arranged at one side of the ball guide block 5, so that the ball guide block 5 can be well positioned, the detection component 11 arranged at the middle part of the lower end of the inclined iron 7 can well detect whether the deviation occurs when the ball guide block 5 and the sliding groove 4 move in the moving process, the distance sensors 1107 arranged at two sides of the placement block 1106 judge whether the sliding plate main body 8 deviates or not when the sliding plate main body 8 deviates, the alarm lamp 1108 that sets up in settling piece 1106 middle part sounds, reminds the staff in time to correct the slide main part 8 of skew to guarantee the continuation and the validity of lathe high accuracy processing.
Claims (2)
1. The device for reducing the friction coefficient of the sliding plate is characterized by comprising a machine tool guide rail (1) and a ball guide rail block (5), wherein the upper end of the machine tool guide rail (1) is connected with a guide rail plate (2), the guide rail plate (2) is connected with the machine tool guide rail (1) through a first bolt (3), the middle part of the upper end of the guide rail plate (2) is provided with a chute (4), the ball guide rail block (5) is connected to the inner side of the chute (4), the upper end of the ball guide rail block (5) is connected with an inclined iron (7), the ball guide rail block (5) is connected with the inclined iron (7) through a second bolt (6), the upper end of the inclined iron (7) is connected with a sliding plate main body (8), the middle part of one side of the ball guide rail block (5) is provided with a positioning groove (9), and a positioning assembly (10) for positioning the sliding plate is arranged on one side of the upper end of the guide rail plate (2), the detection assembly (11) for detecting the deviation of the sliding plate is arranged in the middle of the lower end of the inclined iron (7); the guide rail plate (2) and the machine tool guide rail (1) are distributed in a parallel manner, the sliding chute (4) and the guide rail plate (2) are of an integrated structure, and the guide rail plate (2) is in threaded connection with the machine tool guide rail (1) through a first bolt (3); the ball guide rail block (5) and the wedge (7) are vertically distributed, the upper surface of the wedge (7) is attached to the lower surface of the sliding plate main body (8), the positioning assembly (10) comprises a positioning block (1001), a rubber layer (1002), a mounting hole (1003), a mounting bolt (1004), a limiting ring (1005), a limiting groove (1006), a threaded hole (1007) and a limiting sheet (1008), the rubber layer (1002) is arranged on the lower surface of the positioning block (1001), the mounting hole (1003) is formed in the upper end of the positioning block (1001), the mounting bolt (1004) penetrates through the inner side of the mounting hole (1003), the limiting ring (1005) is arranged at the lower end of the mounting hole (1001), the limiting groove (1006) is connected to the outer side of the limiting ring (1005), the threaded hole (1007) is formed in the lower end of the middle of the limiting groove (1006), the limiting sheet (1008) is arranged on one side of the positioning block (1001), the rubber layer (1002) and the positioning block (1001) are distributed in a parallel manner, the rubber layer (1002) and the positioning block (1001) are connected in an embedded manner, the outside diameter of the limiting ring (1005) is matched with the inside diameter of the limiting groove (1006), the limiting ring (1005) and the mounting hole (1003) are distributed in a concentric manner, the limiting sheet (1008) and the positioning block (1001) are distributed in a parallel manner, the limiting sheet (1008) and the positioning block (1001) are of an integrated structure, the positioning blocks (1001) are provided with two, the detection assembly (11) comprises a fixing seat (1101), a fixing bolt (1102), a connecting slide rail (1103), a connecting slide block (1104), a positioning knob (1105), a placement block (1106), a distance sensor (1107) and an alarm lamp (1108), the fixing bolts (1102) penetrate through four corners of the fixing seat (1101), and the connecting slide rail (1103) is arranged in the middle of the lower end of the fixing seat (1101), the lower end of the connecting slide rail (1103) is connected with a connecting slide block (1104), two ends of the connecting slide block (1104) are provided with positioning knobs (1105) in a penetrating manner, the middle part of the lower end of the middle part of the connecting slide block (1104) is provided with a placing block (1106), two sides of the placing block (1106) are provided with distance sensors (1107), the middle part of the placing block (1106) is provided with an alarm lamp (1108), the central point of the placing block (1106) is coincided with the central point of the connecting slide block (1104), the positioning knobs (1105) penetrate through the inner sides of the two ends of the connecting slide block (1104), the central axis of the connecting slide rail (1103) is coincided with the central axis of the fixed seat (1101), the placing block (1106) forms a sliding connection with the fixed seat (1101) through the connecting slide block (1104), and the two distance sensors (1107) are symmetrically arranged on the central position of the placing block (1106), and the distance sensors (1107) are vertically distributed with the mounting block (1106).
2. A device for reducing the friction coefficient of a skateboard according to claim 1, characterized in that the ball guide blocks (5) are symmetrically arranged in two groups with respect to the center position of the ramp (7), and the ball guide blocks (5) are arranged in three groups, and the ball guide blocks (5) are equally spaced.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111141586.XA CN113857879B (en) | 2021-09-28 | 2021-09-28 | Device for reducing friction coefficient of sliding plate |
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| CN202111141586.XA CN113857879B (en) | 2021-09-28 | 2021-09-28 | Device for reducing friction coefficient of sliding plate |
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| CN113857879B true CN113857879B (en) | 2022-08-16 |
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| CN113857879A (en) | 2021-12-31 |
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