CN202174560U - Spline shaft structure of torque drawing machine and torque drawing device comprising structure - Google Patents
Spline shaft structure of torque drawing machine and torque drawing device comprising structure Download PDFInfo
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- CN202174560U CN202174560U CN2011202898001U CN201120289800U CN202174560U CN 202174560 U CN202174560 U CN 202174560U CN 2011202898001 U CN2011202898001 U CN 2011202898001U CN 201120289800 U CN201120289800 U CN 201120289800U CN 202174560 U CN202174560 U CN 202174560U
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- 238000005259 measurement Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 208000019914 Mental Fatigue Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model relates to an auxiliary tool for fastening bolts, in particular to a spline shaft structure of a torque drawing machine and a torque drawing device comprising the structure. The spline shaft structure comprises an upper-section spline, a lower-section spline and a middle cylinder, stress plates are disposed on a side wall of the middle cylinder, and connecting points of the stress plates are electrically connected with an input end of a display device. Preferably, the four stress plates are uniformly distributed on the same horizontal plane of the side wall of the middle cylinder, and the display device is a torque measuring controller. Stress of a working portion can be accurately measured by the aid of the stress plate disposed on a spline shaft, simultaneously, the stress plates are electrically connected with a high-precision measuring instrument, sampling frequency of the measuring controller is forty times per second, the precision of the measuring controller is +-0.1%, data on the stress plates can be synchronously displayed correctly on time, an integral process is quick, safe and accurate, and accuracy of measured drawing force values is quite high.
Description
Technical field
The utility model is established and a kind of aid that is used for bolted, the moment of torsion stretching device that relates in particular to a kind of spline shaft structure of moment of torsion stretching-machine and use this kind structure.
Background technology
The instrument that is used for bolted in the modern industry; Especially be applied in the fastened tools of specification than king-bolt; Common instrument has moment of torsion stretching-machine and pneumatic tools; And the moment of torsion stretching-machine can provide continuous, stable output pressure through hydraulic pump, thereby becomes strict bolted first-selected fastened tools.The liquid medium (being generally hydraulic oil) that the operation principle of moment of torsion stretching-machine is generally high pressure or super-pressure promotes the piston rod acting in the moment of torsion stretching-machine cylinder body; The piston rod of moment of torsion stretching-machine connects a ratchet mechanism; The sleeve of ratchet mechanism through a standard of splined shaft transmission, and then the nut in the rotational sleeve and realize fastening bolt.
The moment of torsion stretching-machine that has occurred a kind of novelty in the market; As shown in Figure 1; Its main feature is to unite two into one the stretching of the fastening and bolt of nut during through output torque; And when torsional interaction power, on same axle center, eliminate the reaction force that produces, thereby when tensile bolt, do not have the reaction force fulcrum, unable value unbalance loading phenomenon takes place.
But make a general survey of its power and control system, in the design with use all exists below deficiency: at first, its dynamical system is that the demonstration of high pressure pumping plant numerical value remains and follows the Pressure gauge that has used decades; Pressure gauge is because simple structure; Yielding damage, accuracy difference need regularly to detect to change, and especially use in the vibration ratio condition with higher; Be easy to generate the numerical value deviation, belong to the pressure display mode that has fallen behind.And it is uniquely to supply to rely on and carry out the foundation that moment values is controlled, and so just makes the actual value of thrust of turning round become the blind area, and can only rely on prior estimation, estimates with actual verification afterwards and solves afterwards, not only wastes time and energy but also cannot say for sure its accuracy.Secondly its mode of operation still rests on operant level manually, i.e. the operator is with the pressure indicator of eyes range estimation fast moving during practical operation, and manual button commutates when reaching setting value; When reaching terminal value; The manual engagement shutdown like this, produces the collimation error because of viewing angle is different; Because of trick cooperates the collaborative error of the action that produces, because of the long mental fatigue error that produces of operating time has all had a strong impact on the accuracy of power output value.In addition; The generation of actual moment values derives from operate portions, has no parts can transmit true and reliable moment of torsion value of thrust strictly according to the facts, and this is the inadequate natural endowment in the design; And there is not the true demonstration of reliable terminal power value; Just rely on the conversion of force value and the influence of other many factors, make the actual forces value become a unknown number, accuracy is had a greatly reduced quality.
The utility model content
The utility model provides a kind of moment of torsion stretching-machine spline shaft structure, and the moment of torsion stretching-machine of using this structure can be measured the moment of torsion value of thrust of operate portions accurately, and this value of thrust is shown exactly.
The moment of torsion stretching-machine spline shaft structure of the utility model comprises: epimere spline, hypomere spline and middle cylinder, and wherein: said intermediolateral column body sidewall is provided with stress section; The contact of said stress section is electrically connected with the input of a display unit.
Preferably, said stress section is a plurality of.More preferably, said stress section is four and is evenly distributed on the same horizontal plane of said intermediolateral column body sidewall.Through adopting a plurality of stress sections, and it is evenly distributed on the same horizontal plane of splined shaft intermediolateral column body sidewall, can measures more accurate and uniform stress value.
Preferably, said stress section is YF1000.Adopt the stress section of this kind model, the numerical value of not only measuring is reasonable more and accurate, and sturdy and durable, and anti-impact force is strong.
The electrical connection of stress section, and, belong to the prior art of its industry through the TT&C system and the method for stress section to moment of torsion, the present invention no longer is elaborated.
The moment of torsion stretching-machine spline shaft structure of the utility model, said splined shaft axle core has a centre bore; Said splined shaft intermediolateral column surface offers wire guide, and this wire guide is communicated with centre bore; Lead on the contact of said stress section is connected with the input of said display unit with centre bore via wire guide.In addition, said stress section is outside equipped with the soft plastic sheath.
Line between stress section and the display unit is placed on splined shaft inside, and not only structure is compact more, and when operate portions work was stressed, inner contact and the lead of splined shaft can not damage because of receiving external impacts.Stress section is provided with protective device, also can play a protective role by the counter stress sheet.
The utility model also relates to a kind of moment of torsion stretching device; Comprise cover and spline shaft structure in torque wrench body, the nut; Splined shaft in this spline shaft structure connects cover in torque wrench body and the nut, and wherein, said spline shaft structure is above-mentioned any one described spline shaft structure.
The utility model creatively is applied to TT&C system and the method for stress section to moment of torsion in the moment of torsion stretching device, and observing and controlling is direct stressed splined shaft moment of torsion in the moment of torsion stretching device, can like clockwork the stress measurement of operate portions be come out; Simultaneously; This stress section and high accuracy number measuring instrument, promptly the moment of torsion measurement and control instrument is electrically connected, and this measurement and control instrument sampling time is per second 40 times; Precision is positive and negative 0. 1 percent; Can the data sync with on the stress section promptly and accurately show, whole process is fast and safely accurate, and the tensile force value accuracy rate of measuring is high.
Description of drawings
Fig. 1 is the structural representation of moment of torsion stretching device of the prior art;
Fig. 2 is the sketch map of the moment of torsion stretching-machine spline shaft structure of the utility model;
Fig. 3 is the electrical connection sketch map of four stress sections of the utility model;
Fig. 4 is another electrical connection sketch map of four stress sections of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further explanation.
As shown in Figure 2, a kind of moment of torsion stretching-machine spline shaft structure, the splined shaft in this spline shaft structure is the splined shaft among Fig. 1, comprising: epimere spline 1, hypomere spline 2 and middle cylinder 3, this splined shaft axle core has a centre bore 5; Said splined shaft sidewall surfaces offers the wire guide (not shown), and this wire guide is communicated with centre bore 5; The contact of said stress section is electrically connected with the input of display unit via centre bore 5 and wire guide through lead.Four stress sections 41,42,43,44 are evenly distributed on the same horizontal plane of said intermediolateral column body sidewall.Wherein the contact of each sheet stress section all is connected with lead, and the through hole that this lead passes corresponding wire guide of stress section and splined shaft axle in-core passes the input of connection moment of torsion measurement and control instrument from the upper end or the lower end of splined shaft.
Torque sensor wherein; Here refer to stress section, its operation principle is: will produce after utilizing metal by the application of force and turn round quantitative change shape, clocklike change thereby resistance value takes place; If just can accurately measure the variation of resistance value after it is passed to light current, thereby accurately converse its change in torque value.Here stress section is preferably YF1000.In the control system of moment of torsion stretching-machine, implant the high accuracy number measuring instrument, it has following function: 1, and the data Presentation Function, it has a LCD, can data be shown intuitively.2, data acquisition function, accuracy value is percent positive and negative 0. 1, each second 40 times in sampling time.Can data sync promptly and accurately dynamically show sensor.3, can set predetermined value in advance, when reaching predetermined value, shutdown automatically.This moment of torsion measurement and control instrument includes LCDs, also is provided with a plurality of touch key-press on the control panel, comprising: " passage "; " insert " " unit ", " zero clearing "; " function ", " printing ", wherein " function " key comprises menu: " dynamically showing "; " the static demonstration ", functions such as " shutdown ".Because using with connected mode of moment of torsion measurement and control instrument is technological as the common practise property of this area, no longer does detailed description here.Preferably, in order to measure stress value more accurately, on the same horizontal plane in the splined shaft centre position that moment values is born, be uniformly distributed with four stress sections 41; 42,43,44; Interconnection is at an angle of 90 mutually exported on the high accuracy number display by two nodes after getting its average.In addition; Stress section and the connecting line on its contact for fear of the axle cylindrical receive collision or scratch; Need take the certain protection measure to it, specific practice is: the lead on the contact of stress section is connected with the input of said display unit with second through hole 6 via first through hole 5.And the soft plastic sheath is set on stress section.
Fig. 2 and Fig. 3 are respectively the electrical connection sketch map of four stress sections, and Fig. 2 is that four stress sections adopt bridge-type to connect 90 ° of intersection butt joints, and Fig. 3 is another electrical connection sketch map of four stress sections.
The course of work of the moment of torsion stretching-machine of the utility model is following: 1; The high pressure pumping plant of full automatic control is moved to operation field, and energized connects the snap joint of appropriate high-pressure rubber pipe and the plug of stress section; Adjust torque measurement, input bolt load predetermined value is to open state.Here can set predetermined value in advance, when reaching predetermined value, system shuts down automatically.2; Nut collar is inserted on the bolt bottom surface of waiting to stretch fastening, is torqued-up to two-sided screw nut on the nut collar then, and is attached thereto through splined shaft; And then expanding sleeve is tightened on the nut; At this moment, again having sensor, promptly the hydraulic spanner body of the splined shaft of stress section and six side's tenons inserts on nut and the expanding sleeve.3, in-cycle work is pressed down pneumatic button at joystick, and the high-pressure pump beginning work that stands clear provides force value.The moment of torsion stretching-machine is started working, and the nut of screwing fast makes bolt be in extended state.The power Value Data dynamically shows through the display screen on the moment of torsion measurement and control instrument, until reaching predetermined value, shuts down automatically.Whole process is fast and safely accurate, and tensile force value accuracy rate can reach 99 percent, and this is all fastening stretching-machines level that all is beyond one's reach on the present domestic and international market.
Claims (8)
1. moment of torsion stretching-machine spline shaft structure, comprising: epimere spline (1), hypomere spline (2) and middle cylinder (3) is characterized in that: be fixed with stress section on the said intermediolateral column body sidewall; The contact of said stress section is electrically connected with the input of a display unit.
2. spline shaft structure according to claim 1 is characterized in that: said stress section is a plurality of.
3. spline shaft structure according to claim 2 is characterized in that: said stress section is four and is evenly distributed on the same horizontal plane of said intermediolateral column body sidewall.
4. spline shaft structure according to claim 1 is characterized in that: said stress section is YF1000.
5. according to any described spline shaft structure of claim 1 to 4, it is characterized in that: said splined shaft axle core has a centre bore (5); Cylinder (3) surface offers wire guide in the middle of the said splined shaft, and this wire guide is communicated with centre bore (5); Lead on the contact of said stress section is connected with the input of said display unit with centre bore (5) via wire guide.
6. spline shaft structure according to claim 5 is characterized in that: said display unit is the moment of torsion measurement and control instrument.
7. spline shaft structure according to claim 5 is characterized in that: said stress section is provided with the soft plastic sheath.
8. moment of torsion stretching device; Comprise cover and spline shaft structure in torque wrench body, the nut; Splined shaft in this spline shaft structure connects cover in torque wrench body and the nut, and it is characterized in that: said spline shaft structure is any described spline shaft structure of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202898001U CN202174560U (en) | 2011-08-10 | 2011-08-10 | Spline shaft structure of torque drawing machine and torque drawing device comprising structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202898001U CN202174560U (en) | 2011-08-10 | 2011-08-10 | Spline shaft structure of torque drawing machine and torque drawing device comprising structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202174560U true CN202174560U (en) | 2012-03-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202898001U Expired - Fee Related CN202174560U (en) | 2011-08-10 | 2011-08-10 | Spline shaft structure of torque drawing machine and torque drawing device comprising structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202174560U (en) |
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2011
- 2011-08-10 CN CN2011202898001U patent/CN202174560U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: AN LIANSHENG XU DONGLAI Effective date: 20120711 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120711 Address after: 101110, room 2, building 242, middle Lun community, Tongzhou District, Beijing Co-patentee after: An Liansheng Patentee after: Zhu Yunge Co-patentee after: Xu Donglai Address before: 101110, room 2, building 242, middle Lun community, Tongzhou District, Beijing Patentee before: Zhu Yunge |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20140810 |
|
| EXPY | Termination of patent right or utility model |