CN201215520Y - Standard force value poise-weights for standard plane loading device - Google Patents
Standard force value poise-weights for standard plane loading device Download PDFInfo
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- CN201215520Y CN201215520Y CNU2008200981835U CN200820098183U CN201215520Y CN 201215520 Y CN201215520 Y CN 201215520Y CN U2008200981835 U CNU2008200981835 U CN U2008200981835U CN 200820098183 U CN200820098183 U CN 200820098183U CN 201215520 Y CN201215520 Y CN 201215520Y
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- counterweight
- seam
- hole
- weight
- force value
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Abstract
The utility model discloses a standard force value weight of a standard machine loader, which comprises a weight group formed by a plurality of weights, wherein each weight is a step cylinder provided with a through hole at the circle center, the bottom circumference of the small part of each weight is uniformly distributed with a plurality of lower spigots extending outwards, the upper port of the first weight is uniformly distributed with a plurality of upper spigots extending toward the circle center, the through hole at the circle center of each weight from the second weight is a step hole, the upper part of the large end of the step hole is uniformly distributed with a plurality of upper spigots extending towards the circle center, the upper end face of the large part of each weight from the second weight is provided with a positioning pin, the large part of each weight from the first weight is provided with a positioning hole, the positioning pins and the positioning holes of adjacent weights are related, the large parts of the lower weights are sheathed with the small parts of the upper weights through the spigots in turn. The standard force value weight can avoid dislocation in loading or unloading, avoid oscillation after being loaded not to affect the indicating value of torque or force, thereby improving indication repeatability.
Description
Technical field
The utility model relates to a kind of counterweight, particularly a kind of proof force value counterweight of standard machine charger.
Background technology
In commercial production, often need adopt torductor, dynamometer that indexs such as the moment of torsion of manufacturing product, power are measured, and torductor, dynamometer need to load proof force value counterweight and calibrate on the standard machine, guarantee its value accurately and reliably.Referring to Fig. 9, the proof force value counterweight of the charger of existing standard machine is made up of a plurality of counterweights, each counterweight is the cylindrical structure that is provided with central through hole, evenly distribute on each counterweight and be provided with four axial pin-and-holes 12, adjacent upper and lower counterweight inserts serial connection mutual in the pin-and-hole respectively by four pins 11 of living and forms weight group, weight group is held by the pallet 10 of charger, the center hole that the screw mandrel of charger passes each counterweight is connected with pallet, and weight group's first counterweight is topmost hung on the limit cutter of the main frame lever of standard machine.Descend when screw mandrel drives pallet, weight group connects by the pin 11 of living from the top down successively, counterweight is increased progressively one by one hang to connect to form to load; Rise when screw mandrel promotes pallet, weight group successively decreases one by one successively from bottom to top to break away to hang to connect and forms unloading.In the measurement verification process, according to measured scope needs or choose several counterweights of corresponding measurement range, constantly repeat the quantity of load or unload counterweight and finish measurement.As the standard torquer charger that adopts at present usually is exactly to hang size two cover proof force value counterweights on the both sides cutter of the main frame lever of standard torquer, common every cover counterweight has 10 counterweights, by serial counterweight combination results proof force value, and act on and produce the standard torque value that needs on the limit cutter of lever.But because this counterweight is to hang in succession by the pin of living to connect, there is big gap between the aperture of pin alive and counterweight, the pin of living during unloading can't make the counterweight of serial connection steadily fixing, cause counterweight accurately not reset, skew appears easily, be to occur dislocation between upper counterweight and the next counterweight, when calibrating loads counterweight once more, the counterweight of being hung will be swung, and causes in the moment of torsion indicating value short time and can't settle out, and the accuracy of indicating value is affected, repeatability influence to the particularly little torque value of torque value of standard machine is bigger like this, need wait for when therefore using that the counterweight swing stops, having a strong impact on detection efficiency, use extremely inconvenient.Since the indicating value repeatability index of national standard torquer vertification regulation is defined in less than ten thousand/several, on the 1000N.m standard torquer, adopt the counterweight of above-mentioned existing structure to make force loading device, its actual repeatability index is 3 * 10
-4～7 * 10
-4Scope, indicating value repeatability index also only are ten thousand grades, and use also inconvenient.
Summary of the invention
The purpose of this utility model is the deficiency that exists at prior art, a kind of proof force value counterweight of standard machine charger is provided, its each counterweight is equipped with the upper and lower seam that is used for socket, the next counterweight passes through the seam socket with upper counterweight successively, can avoid the upper and lower counterweight in the load or unload process, mutual dislocation to occur, prevent that counterweight from loading the back and forming swing, influence the indicating value of moment of torsion or power, improve indicating value repeatability.
The purpose of this utility model is achieved in that and comprises the weight group that is made up of a plurality of counterweights, each counterweight of weight group is the ladder right cylinder with center of circle through hole, ladder right cylinder top is big footpath section, the bottom is the path section, the diameter of the cylindrical big footpath of the ladder of each counterweight section is identical, the diameter of path section is identical, the path section bottom circumference of each counterweight is evenly distributed with at least three flanges that stretch out, these flanges are provided with the following seam that forms socket at interval, the upper port of the center of circle through hole of first counterweight of weight group is evenly distributed with at least three flanges that extend to the center of circle, the breach of stepping down that is provided with socket between the two adjacent flanges forms seam, the center of circle through hole of each counterweight of second counterweight to the N counterweight is shoulder hole, the diameter of the cylindrical path section of ladder of second counterweight to the N counterweight is less than the bigger diameter end diameter of shoulder hole, the bigger diameter end of shoulder hole is positioned at the big footpath section of counterweight, the upper port of shoulder hole bigger diameter end is evenly distributed with at least three flanges that extend to the center of circle, the breach of stepping down that is provided with socket between the two adjacent flanges forms seam, centerline of the center line of seam and last seam is in equal angular under each of first counterweight to the N counterweight, the big footpath section of first counterweight is provided with the pilot hole that runs through section upper and lower end face, big footpath, the upper surface of the big footpath section of second counterweight to the N counterweight is provided with register pin, the lower surface is provided with pilot hole, the big footpath section of the next counterweight of first counterweight to the N counterweight cooperates with the path section socket of upper counterweight, the next counterweight rotation back is spacing by seam, and the register pin of the next counterweight is corresponding with the pilot hole of upper counterweight, on, the rising gap of the next counterweight when leaving unloading between the next counterweight.
Owing to adopted such scheme, each counterweight of weight group is designed to have the ladder right cylinder of center of circle through hole, ladder right cylinder top is big footpath section, the bottom is the path section, the path section bottom circumference of each counterweight evenly distributes and is provided with the following seam of at least three sockets, the upper port of the center of circle shoulder hole bigger diameter end of each counterweight of second counterweight to the N counterweight of weight group evenly distributes and is provided with the last seam of at least three sockets, the big footpath section of the next counterweight of first counterweight to the N counterweight cooperates with the path section socket of upper counterweight, the next counterweight rotation back is spacing by seam, adopt this seam socket mode socket counterweight, can guarantee that the next counterweight adds, unloading can not produce skew, add, uninstall process is steady, can not produce swing.Again because counterweight is provided with register pin and pilot hole, the rising gap of the next counterweight when leaving unloading between the upper and lower counterweight, the next counterweight rises by the pilot hole formation coupling of register pin and upper counterweight when unloading, can play the positioning and fixing effect, thereby the upper and lower counterweight can not be offset by occurrence positions in the assurance uninstall process, the counterweight uninstall process of having stopped prior art fully produces the phenomenon of skew mutually, to guarantee to measure the accuracy of indicating value.Simultaneously, be laid with several vestibules that are used to adjust quality on each counterweight,, can accurately adjust the quality of counterweight by increase and decrease quality sheet in being used to adjust the vestibule of quality.Adopt this counterweight that the indicating value repeatability index of standard machine is significantly promoted, even this structure counterweight is used for the force loading device of 50Nm standard torquer, also can make actual positive square indicating value repeatability＜0.007% of 50Nm standard torquer, anti-square indicating value repeatability＜0.007%, its actual indicating value repeatability index can reach 100,000 grades, all is better than the indicating value repeatability index 1 * 10 of national standard torquer vertification regulation
-4Standard.
The utility model novel structure, can realize the socket between a plurality of counterweights, and the counterweight quality is accurate, adds, uninstall process steady, do not have skew, do not have swing, is applicable to the counterweight of standard torquer, force standard machines or other standard device charger that loading is had relatively high expectations to counterweight.
Description of drawings
Fig. 1 is the loading synoptic diagram of the utility model weight group socket;
Fig. 2 is the unloading synoptic diagram of weight group's socket;
Fig. 3 is the plan structure figure of the utility model first counterweight;
Fig. 4 be Fig. 1 A-A to sectional view;
Fig. 5 is the face upwarding assumption diagram of first counterweight;
Fig. 6 is the plan structure figure of second counterweight;
Fig. 7 be Fig. 6 C-C to sectional view;
Fig. 8 is the face upwarding assumption diagram of second counterweight;
Fig. 9 connects synoptic diagram for existing hanging of weight group.
In the accompanying drawing, 1 is first counterweight, and 1a is last seam, and 1b is following seam, and 2 is second counterweight, 2a is last seam, and 2b is following seam, and 3 is the 3rd counterweight, and 4 is center of circle through hole, and 5 for being used to adjust the vestibule of quality, 6 is pilot hole, and 7 is register pin, and 8 is shoulder hole, and 9 are the breach of stepping down, and 10 is pallet.
Embodiment
Referring to Fig. 1 to Fig. 8, be a kind of embodiment of the utility model proof force value counterweight, weight group comprises a plurality of proof force value counterweights, being generally a weight group is ten counterweights, (counterweight shown in the drawings is four counterweights that only draw for simplicity).Each counterweight of described weight group is the ladder right cylinder with center of circle through hole, and ladder right cylinder top is big footpath section, and the bottom is the path section, and the diameter of the cylindrical big footpath of the ladder of each counterweight section is identical, and the diameter of path section is identical.The path section bottom circumference of each counterweight is evenly distributed with at least three flanges that stretch out, and the flange that stretches out of present embodiment is set to three, and three flanges are provided with the following seam that forms socket at interval.The upper port of the center of circle through hole 4 of first counterweight 1 of weight group is evenly distributed with at least three flanges that extend to the center of circle, the flange that extends to the center of circle of present embodiment is set to three, the breach 9 of stepping down that is provided with socket between the two adjacent flanges forms three and goes up seam 1a, three horizontal-extending faces of going up seam 1a are the fan-shaped fixing structure of circular arc, adjacent two width of going up the breach 9 of stepping down between the seam 1a are approximately greater than the flange width of the extension dish of charger, supply the flange of the extension dish of charger to pass through, first counterweight 1 can be articulated by last seam 1a and extension dish.The big footpath section of first counterweight 1 is provided with the pilot hole 6 that runs through section upper and lower end face, big footpath, and the pilot hole 6 of present embodiment is made as three, and three pilot holes 6 are located at the residing angle position of seam 1a center line respectively, are evenly distributed on big footpath section end face, are axially extending bore.Three following seam 1b of the path section of first counterweight 1 are in order to the next counterweight socket the time, to the last seam 2a axial limiting of the next counterweight.The center of circle through hole of second counterweight, 2 to the tenth counterweights of weight group is shoulder hole 8, the bigger diameter end of shoulder hole 8 is positioned at the big footpath section of counterweight, the diameter of the bigger diameter end of shoulder hole 8 is greater than the diameter of counterweight bottom path section, make counterweight can with the path section socket of upper counterweight.The upper port of shoulder hole 8 bigger diameter ends is evenly distributed with at least three flanges that extend to the center of circle, the flange that extends to the center of circle of present embodiment is set to three, the breach 9 of stepping down that is provided with socket between the two adjacent flanges forms three and goes up seam 2a, three horizontal-extending faces of going up seam 2a are the fan-shaped fixing structure of circular arc, two adjacent breach of going up between the seam 2a 9 of stepping down are stepped down for the following seam of upper counterweight, the width of this breach 9 of stepping down is approximately greater than the following seam width of upper counterweight, during for socket the following seam of upper counterweight by after the formation axial limiting that rotates to an angle.Centerline of the center line of seam and last seam is in equal angular under each of described counterweight.The upper surface of the big footpath section of described second counterweight, 2 to the tenth counterweights is provided with register pin 7, and the lower surface is provided with pilot hole 6, and described register pin 7 adopts modes such as interference fit or riveted joint to be fixed on the counterweight.The register pin 7 of the big footpath section of second counterweight, 2 to the tenth counterweights of present embodiment is set to three, and three register pins 7 are located at the residing angle position of seam 2a center line respectively; The pilot hole 6 of the lower surface of the big footpath of counterweight section is set to three, and each pilot hole 6 is in same axis with corresponding register pin.The path section bottom circumference of second counterweight, 2 to the tenth counterweights is evenly distributed with three flanges that stretch out, and three flanges are provided with the following seam 2b that forms socket at interval.The center line of each time seam is identical with the residing angle of the center line of last seam, axial limiting in order to the last seam socket of the next counterweight the time.When the big footpath of the next counterweight section with after the path section socket of upper counterweight cooperates, the next counterweight rotates to an angle and forms axial limiting by upper and lower seam, the angle of present embodiment rotation is 60 °, makes first to the tenth counterweight socket bunchiness so successively.The rising gap of the next counterweight makes the next counterweight can upwards shed the weight that is applied on the upper counterweight when leaving unloading between the described upper and lower counterweight.The register pin 7 of described the next counterweight is corresponding with the pilot hole 6 of upper counterweight, can form the coupling location when unloading, and counterweight moves and produces mutual dislocation when avoiding because of unloading.The upper surface of described each counterweight is laid with three vestibules 5 that are used to adjust quality, the tapped blind hole that the described vestibule 5 that is used to adjust quality makes progress for the aperture, and the aperture of tapped blind hole is provided with threaded cap.The vestibule 5 that three of first counterweight 1 are used to adjust quality is extended downwards by the upper surface of counterweight, and the vestibule 5 that three of second to the tenth counterweight are used to adjust quality is extended downwards by the upper surface of the hole shoulder of the shoulder hole of counterweight.Situation about can use according to counterweight increase and decrease quality sheet in three vestibules 5 that are used to adjust quality is accurately adjusted the mass value of each counterweight, with the proof force value of assurance counterweight like this.The material selection 1Cr18Ni9Ti austenitic stainless steel of each counterweight of described weight group is made, and the ladder cylindrical shape of counterweight and upper and lower seam adopt line cutting processing mode to finish.
After the utility model counterweight cooperates ten counterweights with bunchiness by upper and lower seam socket successively and by register pin and pilot hole location, be placed on the pallet 10 of standard machine charger, the screw mandrel that drives pallet 10 liftings passes the center of circle through hole of each counterweight, first counterweight 1 of weight group's upper is by the flange socket of the extension dish of last seam 1a and charger, hangs on the limit cutter of main frame lever of standard machine.During loading, ball screw drives pallet 10 and descends, and the last seam of first counterweight 1 and the extension dish of charger are articulated, and produces required power value, and second counterweight, 2 to the tenth counterweights are held by pallet 10; Ball screw drives pallet 10 to be continued to descend, and the last seam of second counterweight 2 and the following seam formation of first counterweight 1 are articulated, and produces required power value, and the 3rd counterweight 3 to the tenth weight trays 10 are held; Counterweight formation is one by one articulated produce required power value.During unloading, ball screw drives pallet 10 and rises, the next counterweight is held the unloading of rising by pallet 10, after the next counterweight rises, the register pin on the next counterweight and the pilot hole of upper counterweight form coupling, make the upper and lower counterweight when unloading, obtain the location thus, guarantee that the axial location skew does not take place the upper and lower counterweight in uninstall process, counterweight swing in the time of can preventing to load once more.Make ten counterweights by being of coupled connections of register pin and pilot hole like this, finish whole unloadings of weight group, also guaranteed that the skew dislocation does not take place each counterweight of weight group each other simultaneously, ready for load next time.
The utility model not only is confined to the foregoing description, the upper and lower seam of each counterweight also can be set to four or more respectively, upper and lower seam is made as four or more upper and lower sides that all is evenly distributed on counterweight, when guaranteeing the socket of upper and lower counterweight steadily.Register pin on the counterweight, pilot hole also can be set to be less than or more than three, also can realize the location of adjacent two counterweights.
Claims (7)
1. the proof force value counterweight of a standard machine charger, comprise the weight group that forms by a plurality of counterweights, it is characterized in that: each counterweight of described weight group is the ladder right cylinder with center of circle through hole, ladder right cylinder top is big footpath section, the bottom is the path section, the diameter of the cylindrical big footpath of the ladder of each counterweight section is identical, the diameter of path section is identical, the path section bottom circumference of each counterweight is evenly distributed with at least three flanges that stretch out, these flanges are provided with the following seam that forms socket at interval, the upper port of the center of circle through hole of first counterweight of weight group is evenly distributed with at least three flanges that extend to the center of circle, the breach of stepping down that is provided with socket between the two adjacent flanges forms seam, the center of circle through hole of each counterweight of second counterweight to the N counterweight is shoulder hole, the diameter of the cylindrical path section of ladder of second counterweight to the N counterweight is less than the bigger diameter end diameter of shoulder hole, the bigger diameter end of shoulder hole is positioned at the big footpath section of counterweight, the upper port of shoulder hole bigger diameter end is evenly distributed with at least three flanges that extend to the center of circle, the breach of stepping down that is provided with socket between the two adjacent flanges forms seam, centerline of the center line of seam and last seam is in equal angular under each of first counterweight to the N counterweight, the big footpath section of first counterweight is provided with the pilot hole that runs through section upper and lower end face, big footpath, the upper surface of the big footpath section of second counterweight to the N counterweight is provided with register pin, the lower surface is provided with pilot hole, the big footpath section of the next counterweight of first counterweight to the N counterweight cooperates with the path section socket of upper counterweight, the next counterweight rotation back is spacing by seam, and the register pin of the next counterweight is corresponding with the pilot hole of upper counterweight, on, the rising gap of the next counterweight when leaving unloading between the next counterweight.
2. the proof force value counterweight of standard machine charger according to claim 1 is characterized in that: described seam is identical with the quantity of last seam down.
3. the proof force value counterweight of standard machine charger according to claim 1 is characterized in that: the pilot hole of described each counterweight is located at the residing angle position of seam center line.
4. the proof force value counterweight of standard machine charger according to claim 1 is characterized in that: the register pin of described second counterweight to the N counterweight is located at the residing angle position of seam center line, and is in same axis with corresponding pilot hole.
5. according to the proof force value counterweight of the arbitrary described standard machine charger of claim 1～4, it is characterized in that: the last seam of described each counterweight is the fan-shaped seam of circular arc.
6. the proof force value counterweight of standard machine charger according to claim 1 is characterized in that: be laid with several vestibules that are used to adjust quality on described each counterweight.
7. the proof force value counterweight of standard machine charger according to claim 6 is characterized in that: the described vestibule that is used to adjust quality is the tapped blind hole that the aperture makes progress, and the aperture of tapped blind hole is provided with threaded cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200981835U CN201215520Y (en) | 2008-04-29 | 2008-04-29 | Standard force value poise-weights for standard plane loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200981835U CN201215520Y (en) | 2008-04-29 | 2008-04-29 | Standard force value poise-weights for standard plane loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201215520Y true CN201215520Y (en) | 2009-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200981835U Expired - Fee Related CN201215520Y (en) | 2008-04-29 | 2008-04-29 | Standard force value poise-weights for standard plane loading device |
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| CN (1) | CN201215520Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100593701C (en) * | 2008-04-22 | 2010-03-10 | 重庆建设摩托车股份有限公司 | Weights of standard machine loading device |
| CN103575462A (en) * | 2013-11-08 | 2014-02-12 | 吉林大学 | Dead load type torque standardizing machine |
| CN105716786A (en) * | 2016-01-13 | 2016-06-29 | 黑龙江华安精益计量技术研究院有限公司 | Dynamic force calibration apparatus special-purpose counterweight and loading method |
-
2008
- 2008-04-29 CN CNU2008200981835U patent/CN201215520Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100593701C (en) * | 2008-04-22 | 2010-03-10 | 重庆建设摩托车股份有限公司 | Weights of standard machine loading device |
| CN103575462A (en) * | 2013-11-08 | 2014-02-12 | 吉林大学 | Dead load type torque standardizing machine |
| CN103575462B (en) * | 2013-11-08 | 2015-06-10 | 吉林大学 | Dead load type torque standardizing machine |
| CN105716786A (en) * | 2016-01-13 | 2016-06-29 | 黑龙江华安精益计量技术研究院有限公司 | Dynamic force calibration apparatus special-purpose counterweight and loading method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090401 Termination date: 20100429 |