CN204188505U - A kind of novel micro-control coefficient of static friction tester - Google Patents
A kind of novel micro-control coefficient of static friction tester Download PDFInfo
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- CN204188505U CN204188505U CN201420586832.1U CN201420586832U CN204188505U CN 204188505 U CN204188505 U CN 204188505U CN 201420586832 U CN201420586832 U CN 201420586832U CN 204188505 U CN204188505 U CN 204188505U
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- test
- static friction
- level table
- fixedly connected
- coefficient
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Abstract
The utility model discloses a kind of novel micro-control coefficient of static friction tester, belong to surveying instrument field, is solve artificial coefficient of static friction such as sports equipment such as push or pull test pommel horse, balance beam etc. in prior art, wastes time and energy and the low problem of accuracy.When using tester of the present utility model to test the coefficient of static friction of balance beam, test block 23 is placed on balance beam 15.Mechanism for testing completes the control of tester test action in TT&C software interface.Complete a concrete action of test process to have: test starts, back and forth drive servomotor to start, automatically show record, pulling force and the curve of time, calculate coefficient of maximum static friction, back and forth drive servomotor to stop, back and forth drive servomotor reverse starting and get back to enable position, back and forth drive servomotor to stop.After completing all test processs, data automatic arranging, calculating, storage, printing, output test record.Measuring accuracy and efficiency all have significant improvement.
Description
Technical field
The utility model relates to surveying instrument technical field, particularly one novel micro-control coefficient of static friction tester.
Background technology
Usually the stationary ring friction factor of the sports equipment such as method test pommel horse, balance beam etc. of artificial push-and-pull is adopted in prior art, method of testing is more original, also relatively backward, the experience of the method and tester has much relations, the data precision of record is difficult to ensure, when push-and-pull is tested, the direction of power is also difficult to grasp and test block level, it is poor to add that there are errors in computation, thus to the test result of equipment coefficient of static friction and actual difference larger.
Utility model content
The purpose of this utility model is the tester providing the sports equipment coefficient of static friction such as a kind of automatically testing pommel horse, balance beam, for solving artificial coefficient of static friction such as sports equipment such as push or pull test pommel horse, balance beam etc. in prior art, waste time and energy and the low problem of accuracy.
The technical solution of the utility model is:
A kind of novel micro-control coefficient of static friction tester, comprise mechanism for testing, strong and weak electricity control gear, data collection and analysis mechanism, described mechanism for testing comprises:
Support body;
Level table, hollow structure, is fixedly installed on described support body;
Reciprocal driving servomotor, its output shaft is vertically arranged, and is fixedly mounted on vertical installing plate, and described vertical installing plate is vertically arranged on described level table;
Leading screw, is fixedly connected with the output shaft of described reciprocal driving servomotor and coaxially arranges;
Supporting plate, is connected with described leading screw by nut, and described nut and described leading screw are connected;
Pulling force sensor, is fixedly installed on described supporting plate;
Spring, is vertically arranged, and its first end is fixedly connected with described pulling force sensor;
Deflection sheave, be fixedly installed on described vertical installing plate by extension rod, described extension rod is by the below extending to described level table above described level table through the hollow position of described level table, described deflection sheave is wound with wire rope, and the first end of described wire rope is fixedly connected with the second end of described spring;
Friction block, is fixedly connected with the second end of described wire rope, and the bottom surface of described friction block is fixedly connected with test block.
Preferably, described leading screw is fixedly connected with by the output shaft of Hooks coupling universal coupling with described reciprocal driving servomotor; Described vertical installing plate is fixedly installed in steering mechanism.
Further, described steering mechanism comprise spacing servomotor, be fixedly connected with described spacing servo motor output shaft turn to driving wheel, with the described annular test platform turning to driving wheel to be connected; Described annular test platform is connected by circular orbit with described level table, and described annular test platform can rotate around described level table; Described vertical installing plate is fixedly installed on described annular test platform.Vertical installing plate is fixed on annular test platform, can annularly orbit rotation, is automatically moved to 0 °, 90 °, 180 °, 270 ° positions according to test position instruction.
Further, the castor of strap brake and the footing of adjustable horizontal are installed bottom described support body.
As preferably, described test block is bonded in the bottom of described friction block.
As preferably, described data collection and analysis mechanism comprises data collecting card, computing machine, the computer testing loading on described computing machine and control program, and described data collecting card is connected with described computing machine by Computer Communications Interface.
Further, described data collecting card is PCI8602 board.
Preferred hungry, described pulling force sensor is connected with described data collecting card by signal amplifier.
Preferably, described data collecting card is connected with the servo-driver of described reciprocal driving servomotor, in order to send rotating rate signal and stroke limit signal to described reciprocal driving servomotor.
Preferably, the external limit controller of described data collecting card, described limit controller connects the servo-driver of described spacing servomotor.
Mechanism for testing is connected with computing machine by serial communication, completes the control of tester test action in TT&C software interface.Complete a test process, concrete action has: test starts, back and forth drive servomotor to start, automatically show record, pulling force and the curve of time, calculate coefficient of maximum static friction, back and forth drive servomotor to stop, back and forth drive servomotor reverse starting and get back to enable position, back and forth drive servomotor to stop.After completing all test processs, data automatic arranging, calculating, storage, printing, output test record.Rotate test platform 90 °, then complete second time test; Rotate test platform 180 °, then complete third time test; Rotate test platform 270 °, then complete the 4th test.
The beneficial effects of the utility model are:
The utility model provides the equipment of the sports equipment coefficient of static friction such as a kind of automatic test pommel horse, balance beam, compensate for the blank of prior art, the mechanism for testing structure of the utility model novel micro-control coefficient of static friction tester is simple, design ingenious, the full-automation jointly being completed pommel horse ring friction factor by mechanism for testing and data acquisition and analysis system is tested, and testing efficiency and measuring accuracy all have significant improvement relative to manual testing.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the sectional structure schematic diagram of the utility model novel micro-control coefficient of static friction tester mechanism for testing;
Fig. 2 is the perspective view of the utility model novel micro-control coefficient of static friction tester mechanism for testing;
Fig. 3 is the annexation schematic diagram of the utility model novel micro-control coefficient of static friction tester strong and weak electricity control gear, data collection and analysis mechanism;
Fig. 4 is the structured flowchart of the utility model novel micro-control coefficient of static friction tester data collection and analysis mechanism;
1-back and forth drives servomotor; The vertical installing plate of 2-; 3-Hooks coupling universal coupling; 4-turn-screw; The spacing servomotor of 5-; 6-turns to driving wheel; 7-supporting plate; 8-pulling force sensor; 9-spring; 10-wire rope; 11-annular test platform; 12-strong and weak electricity control box; 13-friction block; 14-deflection sheave; 15-balance beam; 16-support body; 17-castor; 18-extension rod; 19-main frame; 20-display; 21-printer; 22-level table; 23-test block; 24-leveling footing.
Embodiment
Embodiment 1
As Figure 1-4, novel micro-control coefficient of static friction tester of the present utility model, comprises mechanism for testing, strong and weak electricity control gear, data collection and analysis mechanism.
Wherein, mechanism for testing comprises support body 16, and the bottom of support body 16 is provided with the castor 17 of strap brake and the footing 24 of adjustable horizontal.Support body 16 is provided with the level table 22 with hollow structure.The surrounding of level table 22 hollow structure is provided with circular orbit, circular orbit is arranged annular test platform 11, and annular test platform 11 can rotate around circular orbit.Level table 22 is fixedly installed spacing servomotor 5, the output shaft of spacing servomotor 5 is fixedly connected with and turns to driving wheel 6, and spacing servomotor 5 drives and turns to driving wheel 6 to rotate.The side of driving wheel 6 is turned to engage with the side of annular test platform 11.
Annular test platform 11 is fixedly installed the vertical installing plate 2 of vertical installing plate 2(vertically arrange), the side of vertical installing plate 2 is fixedly installed near the position at top and back and forth drives servomotor 1, the output shaft of reciprocal driving servomotor 1 is vertically arranged (be arrangeding in parallel with vertical installing plate 2), the output shaft of reciprocal driving servomotor 1 is fixedly connected with turn-screw 4 by Hooks coupling universal coupling 3, turn-screw 4 with back and forth drive the output shaft of servomotor 1 coaxial.Turn-screw 4 is connected with two nuts, these two nuts fix supporting plate 7 jointly, and supporting plate 7 is fixedly connected with pulling force sensor 8, pulling force sensor 8 is fixedly connected with the first end of spring 9.The other end of spring 9 is fixedly connected with wire rope 10, wire rope 10 is fixedly connected with friction block 13 after deflection sheave 14, deflection sheave 14 is fixedly installed on vertical installing plate 2 by extension rod 18, and extension rod 18 extends to the below of level table 22 by the hollow position through level table 22 above annular test board 11.
The bottom adhesive of friction block 13 has test block 23.Friction block quality: 5 ± 0.2kg; The test block size adhered to bottom friction block: (40 ± 1) × (40 ± 1) mm, square material; The thickness of test block: 10 ± 0.5mm, this material is at 5N/cm
2pressure under, its thickness should be able to be compressed to 75 ± 5% of original thickness; The coefficient of static friction of test block: 0.25 ± 0.03; The increase ratio of test block pulling force: 5 ± 0.5N/s.
The main frame 19 that data collection and analysis mechanism is comprised PCI8602 board (data collecting card), is connected by communication interface with PCI8602 board, main frame 19 external-connection displayer 20 and printer 21.Test and control program is also loaded with in main frame 19.PCI8602 board by interface with back and forth drive the servo-driver of servomotor 1 to be connected, with to back and forth driving servomotor 1 to send rotating rate signal and stroke limit signal.Pulling force sensor 8 to be connected with PCI8602 board by signal amplifier and to input data to it.The servo-driver of spacing servomotor 5 connects with limit controller, and limit controller is connected with PCI8602 board, the external angular transducer of limit controller.
Be provided with strong and weak electricity control system in strong and weak electricity control box 12, strong and weak electricity control system is that whole system is powered.
When using tester of the present utility model to test the coefficient of static friction of balance beam, test block 23 is placed on balance beam 15.Mechanism for testing is connected with computing machine by serial communication, completes the control of tester test action in TT&C software interface.Complete a test process, concrete action has: test starts, back and forth drive servomotor to start, automatically show record, pulling force and the curve of time, calculate coefficient of maximum static friction, back and forth drive servomotor to stop, back and forth drive servomotor reverse starting and get back to enable position, back and forth drive servomotor to stop.After completing all test processs, data automatic arranging, calculating, storage, printing, output test record.Rotate test platform 90 °, then complete second time test; Rotate test platform 180 °, then complete third time test; Rotate test platform 270 °, then complete the 4th test.
Claims (5)
1. a novel micro-control coefficient of static friction tester, comprise mechanism for testing, strong and weak electricity control gear, data collection and analysis mechanism, it is characterized in that, described mechanism for testing comprises:
Support body;
Level table, hollow structure, is fixedly installed on described support body;
Reciprocal driving servomotor, its output shaft is vertically arranged, and is fixedly mounted on vertical installing plate, and described vertical installing plate is vertically arranged on described level table;
Leading screw, is fixedly connected with the output shaft of described reciprocal driving servomotor and coaxially arranges;
Supporting plate, is connected with described leading screw by nut, and described nut and described leading screw are connected;
Pulling force sensor, is fixedly installed on described supporting plate;
Spring, is vertically arranged, and its first end is fixedly connected with described pulling force sensor;
Deflection sheave, be fixedly installed on described vertical installing plate by extension rod, described extension rod is by the below extending to described level table above described level table through the hollow position of described level table, described deflection sheave is wound with wire rope, and the first end of described wire rope is fixedly connected with the second end of described spring;
Friction block, is fixedly connected with the second end of described wire rope, and the bottom surface of described friction block is fixedly connected with test block.
2. novel micro-control coefficient of static friction tester as claimed in claim 1, is characterized in that: described leading screw is fixedly connected with by the output shaft of Hooks coupling universal coupling with described reciprocal driving servomotor; Described vertical installing plate is fixedly installed in steering mechanism.
3. novel micro-control coefficient of static friction tester as claimed in claim 2, is characterized in that: described steering mechanism comprise spacing servomotor, be fixedly connected with described spacing servo motor output shaft turn to driving wheel, with the described annular test platform turning to driving wheel to be connected; Described annular test platform is connected by circular orbit with described level table, and described annular test platform can rotate around described level table; Described vertical installing plate is fixedly installed on described annular test platform.
4. novel micro-control coefficient of static friction tester as claimed in claim 3, is characterized in that: be provided with the castor of strap brake and the footing of adjustable horizontal bottom described support body.
5. novel micro-control coefficient of static friction tester as claimed in claim 3, is characterized in that: described test block is bonded in the bottom of described friction block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420586832.1U CN204188505U (en) | 2014-10-11 | 2014-10-11 | A kind of novel micro-control coefficient of static friction tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420586832.1U CN204188505U (en) | 2014-10-11 | 2014-10-11 | A kind of novel micro-control coefficient of static friction tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204188505U true CN204188505U (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420586832.1U Expired - Fee Related CN204188505U (en) | 2014-10-11 | 2014-10-11 | A kind of novel micro-control coefficient of static friction tester |
Country Status (1)
| Country | Link |
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| CN (1) | CN204188505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237119A (en) * | 2014-10-11 | 2014-12-24 | 泰山体育产业集团有限公司 | Novel micro-control static friction coefficient tester |
-
2014
- 2014-10-11 CN CN201420586832.1U patent/CN204188505U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237119A (en) * | 2014-10-11 | 2014-12-24 | 泰山体育产业集团有限公司 | Novel micro-control static friction coefficient tester |
| CN104237119B (en) * | 2014-10-11 | 2016-06-22 | 泰山体育产业集团有限公司 | A kind of novel micro-control confficient of static friction tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20171011 |