CN204477012U - Can the nut assembly of predetermined locking torque - Google Patents
Can the nut assembly of predetermined locking torque Download PDFInfo
- Publication number
- CN204477012U CN204477012U CN201420799798.6U CN201420799798U CN204477012U CN 204477012 U CN204477012 U CN 204477012U CN 201420799798 U CN201420799798 U CN 201420799798U CN 204477012 U CN204477012 U CN 204477012U
- Authority
- CN
- China
- Prior art keywords
- drive plate
- riffled tube
- ratchet
- adjusting nut
- flange plate
- 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.)
- Withdrawn - After Issue
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Abstract
Can the nut assembly of predetermined locking torque, by riffled tube, drive plate and adjusting nut assemble, the internal thread of riffled tube is the position that whole nut assembly and external screw-thread coupling carry out scyewed joint, one end of riffled tube has been installed with flange plate, by ratchet carry-over moment between flange plate and drive plate, the ratchet of drive plate and the ratchet of flange plate have the inclined-plane that can contact with each other, the true dip direction on inclined-plane is, when drive plate drives riffled tube to rotate towards the direction of tightening by ratchet, together with the inclined-plane of drive plate on the ratchet of flange plate is pressed on, and cause drive plate to be subject to axial thrust load thus, this axial thrust load makes drive plate have direction trend in axial sliding towards deviating from flange plate.The utility model has the advantages that, the locking torque of nut assembly is no more than predetermined value, brings great convenience to assembling work only common wrench need to be used just to ensure, and the size of locking torque is adjustable, flexible and convenient to use.
Description
Technical field
The utility model relates to thread connector, particularly relates to nut.
Background technique
In many applications, have strict demand to the locking torque of nut, locking torque can not exceed certain value.In the prior art, above-mentioned requirements be reached, need to use special torque spanner to carry out tightening nut, rely on torque spanner to set locking torque.Owing to needing to use special instrument, therefore very inconvenient in a lot of application.
Model utility content
The purpose of this utility model be to provide a kind of can the nut assembly of predetermined locking torque, this nut assembly can pre-set locking torque, when using this nut assembly, only just need can ensure that locking torque is no more than predetermined value by common wrench.
The utility model is achieved in that can the nut assembly of predetermined locking torque, by riffled tube, drive plate and adjusting nut assemble, the internal thread of riffled tube is the position that whole nut assembly and external screw-thread coupling carry out scyewed joint, one end of riffled tube has been installed with flange plate, the other end of riffled tube is by outside thread and adjusting nut scyewed joint, drive plate is between adjusting nut and flange plate, and be enclosed within slidably on riffled tube, drive plate has the polygonal outer periphery face can blocked by spanner, spring is provided with between drive plate and adjusting nut, one end of spring withstands on adjusting nut, the other end withstands on drive plate, drive plate pushes up and is pressed on flange plate under the effect of this spring force, the end face contacted with drive plate of flange plate is provided with a circle ratchet, the end face contacted with flange plate of drive plate is also provided with a circle ratchet, the ratchet of drive plate and the ratchet of flange plate interlock, with this carry-over moment, the ratchet of drive plate and the ratchet of flange plate have the inclined-plane that can contact with each other, the true dip direction on inclined-plane is, when drive plate drives riffled tube to rotate towards the direction of tightening by ratchet, together with the inclined-plane of drive plate on the ratchet of flange plate is pressed on, and cause drive plate to be subject to axial thrust load thus, this axial thrust load makes drive plate have direction trend in axial sliding towards deviating from flange plate.
As improving further or preferred forms, the utility model also can adopt following attached technological scheme.
Described drive plate is hollow tubular, and described spring is ensconced in the hollow cylinder of drive plate.
Described spring is formed by stacking by multiple butterfly spring.
The end face of described riffled tube is connected with a limiting stopper jointly with the end face of described adjusting nut, and adjusting nut and riffled tube lock together by limiting stopper, and adjusting nut can not be rotated relative to riffled tube.
The end face of described riffled tube and the end face of described adjusting nut are respectively equipped with groove, and described limiting stopper is stuck in the described groove of riffled tube and adjusting nut simultaneously, and limiting stopper is screwed in the groove of described adjusting nut.
Groove on described riffled tube end face is at least provided with two, and the groove on described adjusting nut end face is at least provided with two, and the flute pitch on the flute pitch on riffled tube end face and adjusting nut end face is unequal.
One end deviating from described flange plate of described riffled tube, inwall is provided with a circle double wedge, the tooth top of double wedge is lower than the worm tooth root of the tooth of the internal thread of riffled tube, separately there is a spring band, spring band is connected with a fixture block, fixture block is with double wedge, and under the effect of the expanding radial force of spring band, the double wedge of fixture block and the double wedge of riffled tube interlock.
Working principle of the present utility model is, when this nut assembly is connected on other devices, scyewed joint is carried out with the device that will connect by the riffled tube of nut assembly, the instruments such as spanner are not act directly on riffled tube to nut assembly externally applied forces square, but pass to riffled tube by drive plate, if the moment of face that drive plate is subject to is greater than the maximum moment that drive plate can pass to riffled tube, will skid between drive plate and flange plate, thus the locking torque limited between the device that connects with it of riffled tube, the maximum moment that drive plate passes to riffled tube can not be exceeded.
The utility model has the advantages that, when this nut assembly is connected on other devices, the locking torque of scyewed joint is determined by this nut assembly, locking torque is no more than predetermined value only common wrench need to be used just to ensure, without the need to using the special tools such as torque spanner, bring great convenience to assembling work.On the other hand, the size of the locking torque that this nut assembly determines, changes by the adjusting nut rotated in this nut assembly, to meet the different requirements to locking torque, flexible and convenient to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of nut assembly described in the utility model;
Fig. 2 is the outward appearance orthographic projection view of nut assembly shown in Fig. 1;
Fig. 3 is the stereogram of nut assembly shown in Fig. 1;
Fig. 4 is the stereogram of the riffled tube in Fig. 1;
Fig. 5 is the stereogram of the drive plate in Fig. 1;
Fig. 6 is the stereogram of the adjusting nut in Fig. 1;
Fig. 7 is the application example of the nut assembly shown in Fig. 1 on axle head;
Fig. 8 is the stereogram of spring band and fixture block;
Fig. 9 is the left view of Fig. 7, and adds the spring band shown in Fig. 8 and fixture block.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
See Fig. 1, can the nut assembly of predetermined locking torque, assembled by riffled tube 1, drive plate 2 and adjusting nut 3.The internal thread 1a of riffled tube 1 is the position that whole nut assembly and external screw-thread coupling carry out scyewed joint.One end global formation of riffled tube 1 has flange plate 4, and the other end is by outside thread and adjusting nut 3 scyewed joint.
See Fig. 1, drive plate 2 between adjusting nut 3 and flange plate 4, and is enclosed within riffled tube 1 slidably.As shown in Figure 5, drive plate 2 has the regular hexagon outer circumferential face 5 that can be blocked by spanner, so that turn drive plate 2 with spanner.The outer circumferential face of drive plate 2 also can be other shapes such as quadrilateral.
See Fig. 1, be provided with spring 6 between drive plate 2 and adjusting nut 3, the spring 6 of the present embodiment is formed by stacking by multiple butterfly spring.One end of spring 6 withstands on adjusting nut 3, and the other end withstands on drive plate 2.Drive plate 2 pushes up and is pressed on flange plate 4 under the effect of this spring force.For protection spring 6, the drive plate 2 of the present embodiment is in hollow tubular, and spring 6 is ensconced in the hollow cylinder of drive plate 2.As shown in Figure 1, shown in Figure 5, the regular hexagon outer circumferential face 5 of drive plate 2 is exactly the outer wall of the hollow cylinder shape of drive plate.
Simultaneously see Fig. 2, Fig. 3, Fig. 4, Fig. 5, the end face contacted with drive plate 2 of flange plate 4 is provided with a circle ratchet 7, and the end face contacted with flange plate 4 of drive plate 2 is also provided with a circle ratchet 8.The ratchet 8 of drive plate 2 interlocks with the ratchet 7 of flange plate 4, and moment of face drive plate 2 being subject to this passes to flange plate 4 by ratchet 8 and ratchet 7.The ratchet 7 of flange plate 4 has inclined-plane 7a, and the ratchet 8 of drive plate 2 has inclined-plane 8a.The true dip direction of two inclined-plane 7a, 8a is, as shown in Figure 2, when drive plate 2 drives flange plate 4 by ratchet 8, that is when driving the riffled tube 1 of Fig. 1 to rotate towards the direction of tightening (arrow in Fig. 2 represents the direction of tightening), two inclined-plane 7a, 8a are pressed on together, and causing drive plate 2 to be subject to axial thrust load thus, this axial thrust load makes drive plate 2 have towards the direction deviating from flange plate 4 (namely towards Fig. 2 left direction) trend in axial sliding.The shape of the another side 7b of ratchet 7, and the shape of the another side 8b of ratchet 8 is not restricted, it can be vertical surface as shown in Figure 2, also can be the inclined-plane that angle is suitable, as long as can ensure when drive plate 2 drives riffled tube 1 to rotate towards the direction of loosening (that is arrow shown in Fig. 2 contrary direction), the ratchet 8 of drive plate can not skid mutually with the ratchet 7 of flange plate, ensures that drive plate 2 one drives flange plate 4 and riffled tube 1 to rotate towards the direction of loosening surely.
See Fig. 1, the maximum moment value of riffled tube 1 can be passed to as drive plate 2 need be adjusted, namely change the size of the predetermined locking torque of nut assembly, only need change the pressure between drive plate 2 and flange plate 4.Operating method is rotating adjusting nut 3, and the axial position of adjusting nut 3 is changed, and changes the pressure of spring 6 pairs of drive plates 2.
In order to avoid adjusting nut 3 to meet accident rotation when not needing adjustment, see Fig. 1 and composition graphs 3, the end face of riffled tube 1 is connected with a limiting stopper 9 jointly with the end face of adjusting nut 3, by this limiting stopper 9, adjusting nut 3 and riffled tube 1 are locked together, adjusting nut 3 can not be rotated relative to riffled tube 1.Simultaneously see Fig. 3, Fig. 4 and Fig. 6, be provided with groove 10 at the end face of riffled tube 1, be provided with groove 11 at the end face of adjusting nut 3, when groove 10 aligns with groove 11, limiting stopper 9 is stuck in two grooves 10,11 simultaneously, and is fixed on by screw 12 in the groove of adjusting nut 3.When needs adjust adjusting nut 3, only need unload screw 12, take off limiting stopper 9, just can rotate adjusting nut 3 and adjust.Adjust and completely again fix limiting stopper 9 with screw 12.
In order to improve the Adjustment precision of adjusting nut 3, as shown in Figure 3, Figure 4, the groove 10 on riffled tube 1 end face is circumferentially evenly equipped with four.Simultaneously, as shown in Fig. 3, Fig. 6, groove 11 on the end face of adjusting nut 3 is provided with two, the spacing of groove 11 is less than the spacing of groove 10, so, whenever adjusting nut 3 rotates the angle that is not more than 45 degree, just must have a groove 11 and align with the groove 10 on riffled tube end face, for fixing limiting stopper 9.For reaching higher Adjustment precision, can on the end face of riffled tube 1 uniform more groove 10.As a kind of version, also can be the groove 11 of uniform four or more on the end face of adjusting nut 3, and two grooves 10 are only set on riffled tube end face.
Below in conjunction with the application example shown in Fig. 7, describe the working principle of nut assembly shown in Fig. 1 in detail.Nut assembly is assemblied on the spindle nose 13 of an axletree by Fig. 7, plays determine the effect of bearing clearance in order to rigid bearing.In this application example, riffled tube 1 and spindle nose 13 scyewed joint of nut assembly, during fastening nut assembly, turn the drive plate 2 of nut assembly, pass torque to flange plate 4 by drive plate 2 with spanner, and riffled tube 1 is rotated towards the direction of tightening.When flange plate 4 and bearing inner race 14 have just started to contact, although flange plate 4 is subject to resistance, but under the effect of spring 6, the pressure between drive plate 2 and flange plate 4 is still enough to maintain drive plate 2 and drives flange plate 4, riffled tube 1 is namely driven to continue to rotate towards the direction of tightening.Along with spanner continues to turn drive plate 2, pressure on top surface between flange plate 4 and bearing inner race 14 increases sharply, now, pressure on top surface between the ratcheted ramp 8a of the drive plate 2 shown in Fig. 2 and the ratcheted ramp 7a of flange plate 4 increases rapidly, the axial thrust load that drive plate 2 is subject to increases rapidly, until this axial thrust load is enough to the pressure overcoming spring 6 pairs of drive plates 2, so the ratcheted ramp 8a of drive plate 2 starts to slide along the ratcheted ramp 7a of flange plate 4, the direction that drive plate 2 starts towards deviating from flange plate 4 slides axially, until the tooth top of the ratchet 8 of drive plate 2 slips over the tooth top of the ratchet 7 of flange plate 4, skid between drive plate 2 and flange plate 4, even if now continuation spanner turns drive plate 2, drive plate 2 also cannot pass torque to flange plate 4, locking torque between riffled tube 1 and spindle nose 13 reaches the predetermined maximum value of nut assembly.When the ratchet 8 of drive plate 2 slips over the ratchet 7 of flange plate 4 continuously, the sound of " whip " can be sent, operator is by identifying that this sound is to judge whether the locking torque of nut assembly on spindle nose 13 has reached predetermined maximum value, can ensure that the pressure of riffled tube 1 pair of bearing inner race 14 of nut assembly meets the requirement of bearing assemble thus, bearing clearance is met the demands.
As further improvement, as shown in Figure 3, Figure 4, in one end deviating from flange plate 4 of riffled tube 1, a circle double wedge 15 is provided with in inwall, the tooth top of double wedge 15 is lower than the worm tooth root of the tooth of the internal thread 1a of riffled tube 1, and separately have a spring band 16 as shown in Figure 8, spring band 16 is connected with a fixture block 17, fixture block 17 is with double wedge, and this double wedge can interlock with the double wedge 15 of riffled tube 1.Spring band 16 lays down a definition with available Fig. 9 of effect of fixture block 17.Fig. 9 is equivalent to the left view of Fig. 7, and has installed spring band 16 and fixture block 17 additional.The spindle nose 13 of axletree is provided with the groove being similar to keyway, and fixture block 17 can slip into this groove from the end face of spindle nose.When whole nut assembly is tightened on after on spindle nose, be enclosed within by spring band 16 on spindle nose 13, under the effect of the expanding radial force of spring band 16, the double wedge of fixture block 17 and the double wedge 15 of riffled tube 1 interlock.Fixture block 17 plays the effect of locking riffled tube 1, prevents riffled tube 1 from the unintentional rotation of relative spindle nose 13 occurring when not needing to adjust.After this, if need to readjust nut assembly, only fixture block 17 need be taken out in the groove of spindle nose 13, the locking of internal threads pipe 1 can be removed, after having adjusted, reload fixture block 17.Forward and backward by observing adjustment, the number of teeth that the double wedge 15 of the relative riffled tube 1 of fixture block 17 slips over, accurately can judge the angle of Hui Song, reach the effect controlling unjaming angle degree.The tooth pitch of the double wedge 15 of riffled tube 1 is less, controls more accurate.To the accurate control of nut assembly unjaming angle degree, contribute to the bearing clearance adjusting bearing shown in Fig. 1 more accurately.
Claims (7)
1. can the nut assembly of predetermined locking torque, it is characterized in that: by riffled tube, drive plate and adjusting nut assemble, the internal thread of riffled tube is the position that whole nut assembly and external screw-thread coupling carry out scyewed joint, one end of riffled tube has been installed with flange plate, the other end of riffled tube is by outside thread and adjusting nut scyewed joint, drive plate is between adjusting nut and flange plate, and be enclosed within slidably on riffled tube, drive plate has the polygonal outer periphery face can blocked by spanner, spring is provided with between drive plate and adjusting nut, one end of spring withstands on adjusting nut, the other end withstands on drive plate, drive plate pushes up and is pressed on flange plate under the effect of this spring force, the end face contacted with drive plate of flange plate is provided with a circle ratchet, the end face contacted with flange plate of drive plate is also provided with a circle ratchet, the ratchet of drive plate and the ratchet of flange plate interlock, with this carry-over moment, the ratchet of drive plate and the ratchet of flange plate have the inclined-plane that can contact with each other, the true dip direction on inclined-plane is, when drive plate drives riffled tube to rotate towards the direction of tightening by ratchet, together with the inclined-plane of drive plate on the ratchet of flange plate is pressed on, and cause drive plate to be subject to axial thrust load thus, this axial thrust load makes drive plate have direction trend in axial sliding towards deviating from flange plate.
2. as claimed in claim 1 can the nut assembly of predetermined locking torque, it is characterized in that: described drive plate is hollow tubular, described spring is ensconced in the hollow cylinder of drive plate.
3. as claimed in claim 1 can the nut assembly of predetermined locking torque, it is characterized in that: described spring is formed by stacking by multiple butterfly spring.
4. as claimed in claim 1 can the nut assembly of predetermined locking torque, it is characterized in that: the end face of described riffled tube is connected with a limiting stopper jointly with the end face of described adjusting nut, adjusting nut and riffled tube lock together by limiting stopper, and adjusting nut can not be rotated relative to riffled tube.
5. as claimed in claim 4 can the nut assembly of predetermined locking torque, it is characterized in that: the end face of described riffled tube and the end face of described adjusting nut are respectively equipped with groove, described limiting stopper is stuck in the described groove of riffled tube and adjusting nut simultaneously, and limiting stopper is screwed in the groove of described adjusting nut.
6. as claimed in claim 5 can the nut assembly of predetermined locking torque, it is characterized in that: the groove on described riffled tube end face is at least provided with two, groove on described adjusting nut end face is at least provided with two, and the flute pitch on the flute pitch on riffled tube end face and adjusting nut end face is unequal.
7. as claimed in claim 1 can the nut assembly of predetermined locking torque, it is characterized in that: one end deviating from described flange plate of described riffled tube, inwall is provided with a circle double wedge, the tooth top of double wedge is lower than the worm tooth root of the tooth of the internal thread of riffled tube, separately have a spring band, spring band is connected with a fixture block, and fixture block is with double wedge, under the effect of the expanding radial force of spring band, the double wedge of fixture block and the double wedge of riffled tube interlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420799798.6U CN204477012U (en) | 2014-12-18 | 2014-12-18 | Can the nut assembly of predetermined locking torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420799798.6U CN204477012U (en) | 2014-12-18 | 2014-12-18 | Can the nut assembly of predetermined locking torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204477012U true CN204477012U (en) | 2015-07-15 |
Family
ID=53632803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420799798.6U Withdrawn - After Issue CN204477012U (en) | 2014-12-18 | 2014-12-18 | Can the nut assembly of predetermined locking torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204477012U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757098A (en) * | 2014-12-18 | 2016-07-13 | 佛山市永力泰车轴有限公司 | Nut assembly with pre-determinable locking torque |
| CN111692186A (en) * | 2020-06-22 | 2020-09-22 | 海盐宏茂五金制品有限公司 | Locking and fastening nut for excavator |
-
2014
- 2014-12-18 CN CN201420799798.6U patent/CN204477012U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757098A (en) * | 2014-12-18 | 2016-07-13 | 佛山市永力泰车轴有限公司 | Nut assembly with pre-determinable locking torque |
| CN105757098B (en) * | 2014-12-18 | 2018-06-12 | 佛山市永力泰车轴有限公司 | Can predetermined locking torque nut assembly |
| CN111692186A (en) * | 2020-06-22 | 2020-09-22 | 海盐宏茂五金制品有限公司 | Locking and fastening nut for excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Peng Jiangun Inventor after: Wang Weibiao Inventor after: Pan Yexin Inventor after: Shen Hualin Inventor after: Zhu Xiujuan Inventor after: Peng Jiankun, Wang Weibiao, Pan Yexin, Shen Hualin, Zhu Xiujuan, Fang Zhaohui Inventor before: Peng Jiangun Inventor before: Wang Weibiao Inventor before: Peng Jiankun, Wang Weibiao, Pan Yexin |
|
| COR | Change of bibliographic data | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150715 Effective date of abandoning: 20180612 |