CN201885842U - Device for testing mechanical efficiency of spiral lead screw - Google Patents
Device for testing mechanical efficiency of spiral lead screw Download PDFInfo
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- CN201885842U CN201885842U CN2010202540020U CN201020254002U CN201885842U CN 201885842 U CN201885842 U CN 201885842U CN 2010202540020 U CN2010202540020 U CN 2010202540020U CN 201020254002 U CN201020254002 U CN 201020254002U CN 201885842 U CN201885842 U CN 201885842U
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- leading screw
- spherical guide
- motor
- linear
- lead screw
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Abstract
The utility model relates to a device for testing the mechanical efficiency of a spiral lead screw, consisting of six parts, namely, a control part, a driving part, a measuring part, a load part, a protecting part and a machine seat part, wherein the control part comprises a motor magnetic force starter and a motor direction controller; the driving part comprises a driving motor, a continuously variable transmission, a cross sliding block coupling and a universal coupling; the measuring part comprises a three-parameter sensor and a three-parameter measuring instrument; the load part comprises a linear ball guide rail pulley, a lead screw nut adapter, an oil cylinder, an oil pressure adjusting valve, an oil tank, a pressure gauge, an unloading valve and an oil cup; the protecting part comprises a safety pin and a stroke limiting switch; and the machine seat part comprises a linear ball guide rail and a T-shaped groove iron casting platform. The device can be used for testing the mechanical efficiency of the spiral lead screw, also can be used for providing linear load for a linear moving part and is mainly applied in maintaining aviation machinery accessories and manufacturing and maintaining the spiral lead screw.
Description
Technical field
The utility model relates to a kind of proving installation, specifically a kind of device of testing the screw mechanical efficiency.
Background technology
The transmission of screw is mainly finished by screw rod and nut, and its principle is to become rectilinear motion with rotatablely moving, and is pulling force or thrust with goes through torque conversion simultaneously.Screw has by the purposes branch: power transmission leading screw, conduction leading screw and adjustment leading screw.
For the power transmission leading screw based on power transmission, its main power performance index is a mechanical efficiency.The mechanical efficiency height, illustrate that the rubbing wear of screw pair is little, low in energy consumption, capacity usage ratio is high, the leading screw life-span is long.
Leading screw mechanical efficiency test belongs to special test equipment, all not have the product of typing both at home and abroad always, does not also have special manufacturer production, because the industry and the user of use similar devices are less, it is personal all to be that the user makes by oneself usually.
The utility model content
The purpose of this utility model is, at the problem that does not have leading screw efficiency test modular system at present, provides a kind of error little, widely applicable, economical and practical, can be manually the also leading screw efficiency test platform of automatically testing.
The technical solution of the utility model is: are made up of control, driving, measurement, load, protection and support six major parts.
Control section comprises: motor magnetic starter, motor drive direction controller.The motor drive direction controller is connected by cable with the motor magnetic starter.
Drive part comprises: drive motor, buncher, sliding cross coupling, three parameter sensors, Hooks coupling universal coupling.Its annexation is: drive motor → buncher → sliding cross coupling → three parameter sensors → Hooks coupling universal coupling.
Measure portion comprises: three parameter sensors, three-parameter measuring instrument; Connect by test cable between the two.
Loading section comprises: linear spherical guide coaster, feed screw nut adapter, oil cylinder, oil pressure adjusting valve, fuel tank, tensimeter, unloader, lubricating cup.Its annexation is: the feed screw nut adapter is fixed on the linear spherical guide coaster, coaster is connected with linear spherical guide by moving sets, linear spherical guide is fixed on the T-slot cast iron platform, the piston rod of oil cylinder is hinged on the linear spherical guide coaster by globe bearing, oil cylinder is fixed on the T-slot cast iron platform, and oil pressure adjusting valve, fuel tank, tensimeter, unloader, lubricating cup connect by hydraulic oil pipe and be fixed on the T-slot cast iron platform.
The protection part comprises: safety pin, lead limit switch.Be used to protect the safety pin of leading screw to be installed in the Hooks coupling universal coupling front end, lead limit switch is connected with the motor magnetic starter by cable and is fixed on the T-slot cast iron platform.
Support part: T-slot cast iron platform.
Power transmission relationship of the present utility model is: drive motor → buncher → sliding cross coupling → three parameter sensors → Hooks coupling universal coupling → tested leading screw → feed screw nut → feed screw nut adapter → linear spherical guide coaster.
Load resistance transitive relation of the present utility model is: oil cylinder → linear spherical guide coaster.
Power and load resistance are after reaching balance on the linear spherical guide coaster, and linear spherical guide coaster moves property spherical guide at the uniform velocity along the line.
Principle of work of the present utility model is:
Mechanical efficiency: machine or device, if input work is that (or power is P1 to A1,) output work is that (or power is P2 to A2,) then its mechanical efficiency be η=A2/A1=P2/P1, as long as any machine or device have the input and output of energy, can evaluate the height of its energy conversion degree with efficient.
Leading screw efficient: leading screw is a simple mechanical device, and its input end is a leading screw, and the mechanical quantity of input is torque T (Nm) and the angular velocity omega (rad/s) that acts on the leading screw.Output terminal is a nut, and the mechanical quantity of output is axial linear thrust or the pulling force Q (N) and the linear translational speed V (m/s) of nut.According to the mechanical efficiency definition, leading screw efficient is:
η＝A2/A1＝P2/P1＝QV/(T?ω) (1)
Need measure four parameter: T, ω, Q, V by (1) formula principle design testing table, testing table is too complicated.
Know-why of the present utility model: get leading screw and revolve and turn around to unit interval Δ t, when leading screw at the uniform velocity rotated, in unit interval Δ t, the power input of leading screw was P1=2 π T/ Δ t, and output power is P2=QS/ Δ t, and then leading screw efficient is:
η＝P2/P1＝QS/(2πT)
In the following formula: S (m) is the helical pitch of leading screw, be the distance that every rotation one ring nut of leading screw moves along leading screw, if the pitch of leading screw (axial distance of adjacent helix) is t (m), spiral the end of a thread number is N, S=Nt then, introduced leading screw helical pitch and pitch after leading screw efficient be:
η＝P2/P1＝QS/(2πT)＝QNt/(2πT)＝KQ/T (2)
In the following formula: COEFFICIENT K=Nt/ (2 π), K be one only with the coefficient of screw structure relating to parameters.
From (2) formula as can be known: the efficient of leading screw is only relevant to linear thrust or pulling force Q with output shaft with the structural parameters N of leading screw itself and t and input torque T, and the rotating speed during with its work has nothing to do.But the leading screw mechanical efficiency is the dynamic performance parameter of leading screw, must carry out under rotation status during test, and the working speed of getting leading screw usually is the test rotating speed.
Only need measure two parameter T and Q by (2) formula principle design testing table, much more simply testing table.
From above-mentioned analysis as can be known, leading screw examination efficient is tested platform and only need be satisfied following requirement and get final product:
1. can load axial load Q
2. can input torque T (changeing under the n speed) certain
3. energy measurement axial load Q, rotation speed n, three parameters of torque T
Principle of work based on the utility model device of above-mentioned know-why design is: the oil cylinder of hydraulic load part loads given axial load Q to feed screw nut; It is at the uniform velocity mobile that thereby drive motor drives tested leading screw rotation promotion feed screw nut by buncher; Three parameter sensors of measure portion, three-parameter measuring instrument can be measured the axial load Q of leading screw, rotation speed n, and three parameters of torque T, then by formula (2) calculate leading screw efficient.
According to the requirement of tested leading screw, can in the effective travel of each direction of motion of leading screw, measure some groups three parameters (axial load Q, rotation speed n, torque T), if manual measurement because of being subjected to the restriction of running time, being measured 3 to 5 groups of parameters and is got final product on each direction.If testing table installs automatic measurement system additional, then can gather more multi-group data, and automatic counting yield, also can draw out efficiency curve.
The device of the utility model, the mechanical efficiency that can test screw (slip screw leading screw and ball screw leading screw).Also can be used for providing linear load for linear moving-member (leading screw, hydraulic actuator, pneumatic actuator, electrical equipment actuator).
The device of the utility model is mainly used in the maintenance of aviation machine annex and screw manufacturing inspection and maintenance.
Description of drawings
Fig. 1. the master of the utility model unitary construction looks synoptic diagram
Fig. 2. the schematic top plan view of the utility model unitary construction
Among the figure: 1. power supply, 2. motor drive direction controller, 3. motor magnetic starter, 4. lead limit switch, 5. oil cylinder, 6. linear spherical guide coaster, 7. linear spherical guide, 8.T shape groove cast iron platform, 9. buncher, 10. three phase alternating current motor, 11. three-parameter measuring instrument, 12. sliding cross coupling, 13. three parameter sensors, 14. safety pin, 15. Hooks coupling universal coupling, 16. tested leading screw, 17. feed screw nut, 18. feed screw nut adapter, 19. oil pressure adjusting valve, 20. tensimeter, 21. fuel tank, 22. lubricating cup, 23. unloader.
Embodiment
Below in conjunction with embodiment of the present utility model of accompanying drawing narration
Present embodiment mainly is made up of control, driving, measurement, load, protection and support six major parts.
Control section comprises: motor magnetic starter (3), motor drive direction controller (2);
Drive part comprises: three phase alternating current motor (10), buncher (9), sliding cross coupling (12), Hooks coupling universal coupling (15);
Measure portion comprises: three parameter sensors (13), three-parameter measuring instrument (11);
Loading section comprises: linear spherical guide coaster (6), feed screw nut adapter (18), oil cylinder (5), oil pressure adjusting valve (19), fuel tank (21), tensimeter (20), unloader (23), lubricating cup (22);
The protection part comprises: safety pin (14), lead limit switch (4);
Support partly comprises: T-slot cast iron platform (8).
After power passes through buncher (9) speed change by three phase alternating current motor (10), pass to tested leading screw (16) by sliding cross coupling (12), three parameter sensors (13), Hooks coupling universal coupling (15) again, by rotatablely moving behind the feed screw nut (17) and moment of torsion just is converted to that straight line moves and push-pull effort.After push-pull effort reached balance by the load resistance on feed screw nut adapter (18), linear spherical guide coaster (6) and the oil cylinder (5), linear spherical guide coaster (6) moved property spherical guide (7) at the uniform velocity along the line.Three parameter sensors (13) are at moment of torsion, rotating speed and the axial push-pull effort of leading screw end test leading screw, again by calculating the mechanical efficiency of leading screw.
The critical piece technical parameter:
The test board major parameter:
Power: 0.55kw
Rotating speed: 40～200rpm
Tested leading screw maximum length: 1200mm
Physical dimension (mm): long * wide * high=3000 * 1000 * 1400
Complete machine quality: 3500kg
Three parameter sensors technical parameters
The range of speeds: 0～6000rpm, precision: ± 0.5%
Torque range: 0～50Nm, precision: ± 0.5%
Axial load: 0～15000N, precision: ± 0.5%
The buncher technical parameter
Output power: 0.55kw
Rotating speed: 40～200rpm
Output torque: 26～131Nm
Hydraulic load oil cylinder technical parameter
Rated oil pressure: 16MPa
Piston diameter: 63mm
Diameter of piston rod: 32mm
Piston rod stroke: 800mm
Piston rod axial load: 150～37000N
Environment for use requires: temperature :-20～60 ℃ of relative humidity :≤90%RH.
Claims (2)
1. leading screw efficiency test platform is characterized in that, form by control, driving, measurement, load, protection and support six major parts,
Described control section comprises: motor drive direction controller (2), motor magnetic starter (3), and the motor drive direction controller is connected by cable with the motor magnetic starter;
Described drive part, comprise: drive motor (10), buncher (9), three parameter sensors (13), sliding cross coupling (12), Hooks coupling universal coupling (15), its annexation is: drive motor → buncher → sliding cross coupling → three parameter sensors → Hooks coupling universal coupling;
Described measure portion comprises: three parameter sensors (13), three-parameter measuring instrument (11) connect by test cable between the two
Described loading section, comprise: the linear spherical guide coaster of linear spherical guide (7) (6), feed screw nut adapter (18), oil cylinder (5), oil pressure adjusting valve (19), fuel tank (21), tensimeter (20), unloader (23), lubricating cup (22), its annexation is: the feed screw nut adapter is fixed on the linear spherical guide coaster, coaster is connected with linear spherical guide by moving sets, linear spherical guide is fixed on the T-slot cast iron platform (8), the piston rod of oil cylinder is hinged on the linear spherical guide coaster by globe bearing, oil cylinder is fixed on the T-slot cast iron platform (8), oil pressure adjusting valve, fuel tank, tensimeter, unloader, lubricating cup connects by hydraulic oil pipe and is fixed on the T-slot cast iron platform
Described protection part comprises: safety pin (14), lead limit switch (4), and be used to protect the safety pin of leading screw to be installed in the Hooks coupling universal coupling front end, lead limit switch is connected with motor magnetic starter (3) by cable and is fixed on the T-slot cast iron platform.
2. leading screw efficiency test platform according to claim 1 is characterized in that, support adopts T-slot cast iron platform (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202540020U CN201885842U (en) | 2010-07-08 | 2010-07-08 | Device for testing mechanical efficiency of spiral lead screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202540020U CN201885842U (en) | 2010-07-08 | 2010-07-08 | Device for testing mechanical efficiency of spiral lead screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201885842U true CN201885842U (en) | 2011-06-29 |
Family
ID=44183387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202540020U Expired - Fee Related CN201885842U (en) | 2010-07-08 | 2010-07-08 | Device for testing mechanical efficiency of spiral lead screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201885842U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554534A (en) * | 2011-12-07 | 2012-07-11 | 常州市龙豪车辆配件厂 | Automotive positioning device |
| CN103543008A (en) * | 2012-07-10 | 2014-01-29 | 北京精密机电控制设备研究所 | Spiral transmission mechanism characteristic experimental apparatus |
| CN106153328A (en) * | 2016-08-26 | 2016-11-23 | 北京星航机电装备有限公司 | Cupping machine screw pair thrust torques relation test device |
| CN106596249A (en) * | 2016-12-16 | 2017-04-26 | 福建工程学院 | Experiment loading device adaptive to component sliding |
-
2010
- 2010-07-08 CN CN2010202540020U patent/CN201885842U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554534A (en) * | 2011-12-07 | 2012-07-11 | 常州市龙豪车辆配件厂 | Automotive positioning device |
| CN103543008A (en) * | 2012-07-10 | 2014-01-29 | 北京精密机电控制设备研究所 | Spiral transmission mechanism characteristic experimental apparatus |
| CN106153328A (en) * | 2016-08-26 | 2016-11-23 | 北京星航机电装备有限公司 | Cupping machine screw pair thrust torques relation test device |
| CN106596249A (en) * | 2016-12-16 | 2017-04-26 | 福建工程学院 | Experiment loading device adaptive to component sliding |
| CN106596249B (en) * | 2016-12-16 | 2023-04-07 | 福建工程学院 | Test loading device adaptive to component sliding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Jinji Document name: Notification of Passing Examination on Formalities |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20150708 |
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| EXPY | Termination of patent right or utility model |