CN2035473U - Loading device for testing machine - Google Patents
Loading device for testing machine Download PDFInfo
- Publication number
- CN2035473U CN2035473U CN 88214697 CN88214697U CN2035473U CN 2035473 U CN2035473 U CN 2035473U CN 88214697 CN88214697 CN 88214697 CN 88214697 U CN88214697 U CN 88214697U CN 2035473 U CN2035473 U CN 2035473U
- Authority
- CN
- China
- Prior art keywords
- loading
- loading system
- sensor
- screw rod
- bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a loading device for testing machine, belonging to the improvement of loading system for testing machine, which comprises a supporting bar, a force bar, a sensor, a motor, a screw rod, a top thread, loading springs, etc. The loading system can automatically continuously loading, and the scope of lading is determined by loading springs. The structure of the utility model is particularly suitable for continuously loading test machine or continuously loading test.
Description
The present invention relates to a kind of loading system that is used for testing machine, it mainly is made up of following structure: support bar, cross bar, power bar, loading mechanism, sensor, pressure head and control system etc. belong to the improvement of testing machine loading system.
(for example: friction, abrasion tester, scratch test machine) loading system generally adopts lever principle to known various testing machine.Apply load in order to treat test block, in the one or both sides of testing machine power bar the power bar is applied load, can apply load to test block by the power bar, the power that obviously puts in the test block to be measured is relevant with moment.In order to make the power that puts in the test block to be measured be linear, when testing machine is worked, at first, the power bar of adjusting loading system becomes horizontality and makes the test block of pressure head contact measured, and making the power that puts in the test block simultaneously is zero, then, again test block is applied load, in the testing machine course of work, the power bar of requirement is the level of state all the time, does not change because of applying load variations.
The loading mode of above-mentioned known testing machine loading system mainly contains following several: the weights that applies Different Weight in the one or both sides of power bar; Change the position of weights on the power bar; Adopt hydraulic pressure loading mechanism or the like.Weights loading mode is divided into two kinds of continous way and discontinuous again, to be adapted to different testing machines.
But, above-mentioned known technology has tangible deficiency, and (1) weights loading mode is generally manual operations, and not only the test period is long, and can cause certain error, (2) weights loading mode is not suitable for and does continuous bearing test very much, (3) though loading and the control automatically easily continuously of hydraulic pressure loading mode, the hydraulic system structure complexity, make difficulty, the particularly more difficult manufacturing of miniature precision testing machine, and hydraulic system also needs often to safeguard.
The objective of the invention is to avoid above-mentioned weak point of the prior art and a kind of testing machine loading system is provided, this device adopts continuous loading structure, both loading automatically, also manually loading, loading speed and load can be by system controlled by computer, and this apparatus structure is reasonable, and it is convenient to implement.
Purpose of the present invention can reach by following measure:
Loading system of the present invention adopts lever principle, loading system is by support bar, cross bar, power bar, loading system, formations such as pressure head, sensor and control system, wherein: loading system comprises: motor, screw rod, jackscrew, stopper slot, loading spring, manual loading knob etc.Loading system is assemblied on the cross bar and can applies power to the power bar, applies load by the test block to be measured of power pole pair.
Purpose of the present invention can also realize by following measure:
Above-mentioned testing machine is in aggregates with loading system assembling, wherein: loading system be assemblied on the cross bar and with other respective outer side edges of loading system.
The screw rod that belongs to loading system is perpendicular to cross bar and power bar, two of screw rod or one can be respectively with motor or manually the loading knob connect.Motor or manual loading knob can make screw rod prolong clockwise or counterclockwise and rotate.
Jackscrew is assemblied on the above-mentioned screw rod in a spiral manner, has more than one spacer pin on jackscrew at least, and spacer pin cooperates with spacing hole on the protective cover, and protective cover covers on the screw rod and be concentric with screw rod, and protective cover is fixed on the cross bar in a spiral manner.When screw rod rotated, spacing on spacer pin on the jackscrew and the protective cover limited jackscrew with the rotation of screw rod and force jackscrew to move up and down.
The loading spring is positioned on the above-mentioned jackscrew, be between screw rod and the protective cover, promptly the interior external diameter of spring respectively greater than with less than the external diameter of screw rod and the internal diameter of protective cover.The upper end of loading spring contacts with the power bar just.When screw rod rotates, (descend) on the jackscrew and move, the loading spring is compressed (loosening), and the elastic force of spring can be applied on the power bar.The size of neglecting the required load of testing machine greatly of spring force and deciding.
When loading system has applied power to the power bar,, can treat test block and apply load by power bar and pressure head.The size of load is provided by sensor, by system controlled by computer.
Above-mentioned loading system is done as a whole being installed on the cross bar, the mode of installing has multiple, can be installed in loading system on the cross bar by screw rod, also can be installed in loading system on the cross bar by motor, for example: by bearing screw rod is fixed on the cross bar, or motor is fixed on the cross bar by screw rod.
Above-mentioned screw flight can be various screw threads, but is preferably fine thread, when the load that requires to apply is big, can adopt square thread.
Motor and manually the loading knob link with the lower end or the upper end of screw rod respectively.Motor is preferably stepper motor.
The connecting mode of screw rod and motor and manual loading knob can be: worm-and-wheel; Belt driven type; Gear driven type; Direct articulated.Visual different situations are selected.
Opposite side or homonymy at the power bar have assembled pressurized head systems respectively, and it comprises: loading sensor, support spring and pressure head etc. also should comprise steel ball, depression bar, calibrate AE sensor etc.Above-mentioned parts are pressed steel ball, loading sensor, support spring, depression bar, calibrate AE sensor, pressure head installation from top to bottom successively, wherein: removing the surplus each several part connection of steel ball and support spring is an integral body, but require easy to loading and unloadingly, especially pressure head and depression bar or calibrate AE sensor connects.
Above-mentioned support spring is positioned on the cross bar, the pressurized head systems that the elastic force of spring is formed with the above-mentioned steel ball of lucky support, loading sensor, depression bar, calibrate AE sensor and pressure head etc.When loading system no longer applies power to the power bar, support spring is promptly brought into play supporting role.
Steel ball is positioned on the loading sensor, the some contact guarantee of steel ball and power bar in process of the test moment do not change.
The structure of above-mentioned loading system can be double-arm, also can be single arm type.When loading system when being double-arm, loading system part and pressing system partly can be installed in the both sides of cross bar respectively; When loading system was single arm type, loading system and pressurized head systems were installed in the homonymy of cross bar.
The present invention is further illustrated below by accompanying drawing:
Fig. 1 is the testing machine loading system.Motor (1) is installed on the cross bar (3) with spiral form, the lower end of screw rod (2) is passed cross bar and is connected with motor by unitor (20), the upper end of screw rod (2) is passed power bar (9) and is connected with manual loading knob, jackscrew (4) is assemblied on the screw rod (2) with rotation mode, spacer pin on the jackscrew (5) is positioned on the microscler spacing hole (7) of protective cover (6), loading spring (8) is positioned on the jackscrew (4), its upper end contacts just with the power bar, loading sensor (13), depression bar (15), calibrate AE sensor (16), pressure head (17) is coupled to be an integral body, but can demolition, support spring (14) is enclosed within and is positioned on the cross bar (3) on the depression bar (15), and, support whole pressurized head systems by support to loading sensor (13).Steel ball (12) is positioned on the loading sensor (13).
When motor (1) rotates, at first driving screw rod (2) rotates together, because the effect of spacer pin (5) and spacing hole (7), forcing jackscrew (4) to go up (descending) moves, jackscrew (4) compression (loosening) loading spring (8), the loading spring is oppressed power bar (9) and the power bar has been applied power, promptly test block (18) has been applied load by the strong point (11) and pressurized head systems, the size of load is provided by loading sensor (13), calibrate AE sensor has reflected the state of test block in process of the test, worktable (19) but up-down adjustment.After loading system no longer applied power to the power bar, support spring (14) can support pressurized head systems, and making and putting on negative in the test block is zero.
Obviously, only rotating manual loading knob (10) also can achieve the above object equally.
Fig. 2 is that screw rod directly is connected in the situation on the cross bar.Screw rod (2) is fixed on the cross bar (3) by bearing (21), and screw rod can rotate with respect to cross bar, and the screw rod lower end passes and passes through a driving coupling system (22) from cross bar and directly connects with motor (1) or manual loading knob (10).All the other same Fig. 1.
This routine driving coupling system (22) can also be that gear drive connects worm and gear driving coupling etc.
Fig. 3 is another kind of loading mode.When motor (1) or manual loading knob (10) rotate, by loading spring (8) and steel wire (23), can apply load to test block by pressure head (17), the size of load is provided by sensor (13).
Above-mentioned testing machine can be determined that with the loading scope of loading system loading speed can be by motor or the manually rotating speed control of loading knob by the loading spring.
Compared with the prior art the present invention has following characteristics:
(1) simple and reasonable;
(2) can automatically add continuously lotus, and add the wide ranges of lotus, be suitable for continuous loading tester;
(3) testing machine made from the present invention, operating efficiency improves greatly.
(4) adding mechanism of the present invention is adapted to the cut testing machine especially.
Claims (7)
1, a kind of automatic loading system of testing machine that is used for, constitute by support bar, cross bar, power bar, loading system, sensor etc., it is characterized in that, adding what device is made up of loading system and pressurized head systems, wherein: loading system is made of motor, screw rod, jackscrew, spacer pin, protective cover, loading spring, manual loading knob, and pressurized head systems is made of steel ball, loading sensor, depression bar, pressure head, calibrate AE sensor, support spring.
2, automatic loading system as claimed in claim 1 is characterized in that, the connecting mode of motor and screw rod is: directly connect, the belt pulley driving coupling, gear drive connects, worm and wormwheel connects, with direct connection for well.
3, automatic loading system as claimed in claim 1 is characterized in that, jackscrew cooperates with spiral and is assemblied on the screw rod, at least one spacer pin is arranged on the jackscrew and cooperates with spacing hole on the protective cover.
4, automatic loading system as claimed in claim 1 is characterized in that, the loading spring is assemblied on the jackscrew, and its upper end can contact with the power bar.
5, automatic loading system as claimed in claim 1 is characterized in that, manually the loading knob is connected on the screw rod.
6, automatic loading system as claimed in claim 1 is characterized in that, the loading sensor of pressurized head systems, depression bar, calibrate AE sensor, pressure head etc. combine as a whole, and steel ball is placed on the loading sensor, and support spring is placed on the cross bar.
7, automatic loading system as claimed in claim 1 or 2 is characterized in that motor is preferably stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88214697 CN2035473U (en) | 1988-10-05 | 1988-10-05 | Loading device for testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88214697 CN2035473U (en) | 1988-10-05 | 1988-10-05 | Loading device for testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2035473U true CN2035473U (en) | 1989-04-05 |
Family
ID=4847593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88214697 Expired - Lifetime CN2035473U (en) | 1988-10-05 | 1988-10-05 | Loading device for testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2035473U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053500C (en) * | 1991-12-04 | 2000-06-14 | 中国科学院金属腐蚀与防护研究所 | Stepless speed regulating alternate-loading device and fatigue machine |
| CN101825535A (en) * | 2010-03-13 | 2010-09-08 | 株式会社村田制作所 | Breaking strength measuring apparatus and breaking strength measuring method |
| WO2015135329A1 (en) * | 2014-03-14 | 2015-09-17 | 唐山轨道客车有限责任公司 | Fatigue testing device for pulsation fatigue testing machine and pulsation fatigue testing machine |
| CN106840937A (en) * | 2017-03-27 | 2017-06-13 | 西南交通大学 | A kind of telescopic integrated measuring for scratch experiment scrapes head |
| CN107796693A (en) * | 2017-09-29 | 2018-03-13 | 清华大学 | A kind of three point bending test device and method |
| CN109883790A (en) * | 2019-03-25 | 2019-06-14 | 中国飞机强度研究所 | A kind of scratch introducing device |
-
1988
- 1988-10-05 CN CN 88214697 patent/CN2035473U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053500C (en) * | 1991-12-04 | 2000-06-14 | 中国科学院金属腐蚀与防护研究所 | Stepless speed regulating alternate-loading device and fatigue machine |
| CN101825535A (en) * | 2010-03-13 | 2010-09-08 | 株式会社村田制作所 | Breaking strength measuring apparatus and breaking strength measuring method |
| CN101825535B (en) * | 2010-03-13 | 2012-12-26 | 株式会社村田制作所 | Breaking strength measuring apparatus and breaking strength measuring method |
| WO2015135329A1 (en) * | 2014-03-14 | 2015-09-17 | 唐山轨道客车有限责任公司 | Fatigue testing device for pulsation fatigue testing machine and pulsation fatigue testing machine |
| CN106840937A (en) * | 2017-03-27 | 2017-06-13 | 西南交通大学 | A kind of telescopic integrated measuring for scratch experiment scrapes head |
| CN107796693A (en) * | 2017-09-29 | 2018-03-13 | 清华大学 | A kind of three point bending test device and method |
| CN109883790A (en) * | 2019-03-25 | 2019-06-14 | 中国飞机强度研究所 | A kind of scratch introducing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200942410Y (en) | Automatic shaft straihtener | |
| CN1267719C (en) | Reciprocal and rotary type incorporated frictional wear test machine | |
| CN2035473U (en) | Loading device for testing machine | |
| CN111766143A (en) | Universal testing machine | |
| CN1189610A (en) | Apparatus and method for testing belt tension of belt drive | |
| CN112857852B (en) | Reliability test bed and test method based on mixed loading numerical control machine tool feeding system | |
| CN1462871A (en) | Three degree of freedom microcomputer controlled universal tester | |
| CN217030641U (en) | Portal frame with liftable crossbeam | |
| CN215115584U (en) | Pressure testing machine for building quality detection | |
| CN2881597Y (en) | Test stand for fixed point strength of installed automobile safety belt | |
| CN211877640U (en) | Tension-torsion testing machine for plug | |
| CN112161883B (en) | Helicopter tail rotor control steel cable fatigue test platform | |
| CN1851230A (en) | Automatic torque-changing pumping unit | |
| CN114878159A (en) | Rapid life testing device and method applied to precision speed reducer | |
| CN2881580Y (en) | Calibrating device of negatire step dynamic torgue | |
| CN211121909U (en) | Leaf spring test fixture | |
| CN109604996B (en) | RV reduction gear snatchs clamping device fast | |
| CN208543486U (en) | A kind of manipulator analog platform | |
| CN113125956A (en) | Wiper motor assembly becomes to carry testing arrangement | |
| CN110220701A (en) | A kind of multi-functional selector performance testing device | |
| CN1053500C (en) | Stepless speed regulating alternate-loading device and fatigue machine | |
| CN220018916U (en) | Load fatigue strength testing mechanism for cylindrical rubber covered wheel | |
| CN217930847U (en) | Jacking mechanism for shock absorber test | |
| CN200982942Y (en) | Tester for lorry plane friction material | |
| CN216207189U (en) | Throttle push rod operating force automatic detection mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |