CN103133498A - Mechanical nut device and bolt - Google Patents
Mechanical nut device and bolt Download PDFInfo
- Publication number
- CN103133498A CN103133498A CN2013100604844A CN201310060484A CN103133498A CN 103133498 A CN103133498 A CN 103133498A CN 2013100604844 A CN2013100604844 A CN 2013100604844A CN 201310060484 A CN201310060484 A CN 201310060484A CN 103133498 A CN103133498 A CN 103133498A
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- Prior art keywords
- thread
- nut
- screw
- bolt
- fillet
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Abstract
The invention relates to a mechanical nut device and a bolt. The nut device comprises a nut, a threaded cylinder ring, a threaded ring and a washer, an internal thread is arranged on the inner side of the nut, an internal thread is arranged on the inner side of the threaded cylinder ring, an external thread is arranged on the outer side of the threaded cylinder ring, the threaded cylinder ring is sleeved in the nut through the threads, an external spline is arranged on the outer side of the threaded ring, a thread is arranged on the inner side of the threaded ring, an internal spline is arranged on the inner side of the washer, and the washer is sleeved outside the threaded ring through the spline. The washer and the threaded ring can generate relative axial movement under exogenic action. A thread on a bolt body is matched with the internal threads of the threaded cylinder ring and the threaded ring, and the bolt body is respectively connected with the threaded cylinder ring and the threaded ring through the threads. Matched thread surface precision of the nut and the threaded cylinder ring and contact surface precision of the nut and the washer are controlled to accurately control friction force.
Description
Technical field
The present invention relates to a kind of four controllable mechanical type nuts of parts frictional force, especially a kind of mode by the moment of torsion clamping bolt reaches four parts mechanical type nut apparatus and the bolts of realizing the accurate pretightening force of bolt.
Background technique
It is a kind of Placement very common in machinery industry that bolt connects, and for convenience of the postrun dismounting of equipment and maintenance, the component of a lot of jumboes and lathe connect all with bolts.Traditional locking method that existing bolt, nut connect comprises: moment of torsion clamping bolt method and bolt tension clamping bolt method.Moment of torsion clamping bolt method is to use torque tool rotation plain nut, by the relative displacement between the screw thread of nut and bolt, makes the bolt generation resiliently deformable that is stretched, thereby makes the pretightening force of bolt generation resilience.Bolt tension clamping bolt method is to use the method bolt of stretching tool or heating elongated in elastic range, makes bolt directly produce resiliently deformable, thereby makes bolt produce the pretightening force of resilience.When using moment of torsion clamping bolt method, due to the frictional force error of nut and bolt matching thread, can not obtain identical bolt elastic deformation amount by guarantee effect identical moment of torsion on nut, can make the amount of deformation of bolt produce 20～50% errors during normal operation; When using bolt tension clamping bolt method, when bolt is stretched to certain elastic deformation amount in elastic range, need to use manual mode to screw nut, error due to nut and flange contact facings, manually the moment of torsion rotating nut can produce error, thereby produces the 10%-15% error when making the reservation of tensile buckling amount of bolt.And the existence of these errors is because nut and the frictional force inequality that contacts base surface (as flange or apparatus body) to a great extent, and the screw thread frictional force inequality between nut inner thread and kingbolt causes.The bolt of heavy mechanical equipment or machine tool component connects, in case the error of aforesaid bolt amount of elastic deformation occurs, will produce the error of bolt pretightening, occur loosening between the parts that cause being connected, thereby can not satisfy the industrial application requirement of equipment, when serious, with the production development accident, for example equipment collapses, the chemical plant blast, offshore oil pipeline leakage of oil etc.
The fastening precision problem of large diameter bolt has become a bottleneck of China's new energy, heavy equipment industry development, has had a strong impact on our heavy equipment industry product to the ability of higher level development.
Summary of the invention
For overcoming the deficiency of above-mentioned prior art, the invention provides a kind of four controllable mechanical type nut apparatus of parts frictional force and bolts.
Concrete technological scheme is as follows:
A kind of mechanical type nut apparatus comprises
One nut, this nut inboard is provided with internal thread;
One thread barrel circle, this thread barrel circle inboard are provided with internal thread, and the outside is provided with outside thread with spiral shell
Line is socketed on in aforementioned nut;
One fillet of screw is provided with external splines outside this fillet of screw, and the inboard is provided with internal thread;
One packing ring, this packing ring inboard are provided with internal spline, are connected to outside the aforementioned fillet of screw with spline housing;
Described packing ring and the described fillet of screw can be under external force, and generation moves to axial.
Further, described nut lower surface is with smooth smooth the amplexiforming of upper surface of washer.
Further, described packing ring lower surface is non-smooth flat.
Further, described non-smooth lower surface is jagged decorative pattern.
Further, the internal thread of described nut is accurate internal thread, and the outside thread of described thread barrel circle is accurate outside thread.
Further, described thread barrel circle internal thread is regular screw threads, and the internal thread of the described fillet of screw is regular screw threads.
A kind of bolt that adapts with aforementioned nut apparatus, the screw thread on this bolt body is complementary with the internal thread of described thread barrel circle and the described fillet of screw, and by screw thread with described thread barrel circle be connected the fillet of screw and connect respectively.
Further, the screw thread on described bolt body is regular screw threads.
Beneficial effect of the present invention is: mechanical type nut apparatus of the present invention, and by the matching thread surface accuracy of control nut and thread barrel circle, and nut and packing ring surface of contact precision, with accurate control frictional force.Thereby with the uncontrollable nut of conventional nut Placement and flange contact facings place frictional force, uncertain frictional force between kingbolt and matching thread that conventional nut is connected, be converted into the frictional force between the matching thread of accurately controlled nut and thread barrel circle, and the frictional force between nut and packing ring surface of contact, make it even and can control, eliminate conventional nut and cause the error of bolt pretightening because of change in friction force, and the work bolt of making obtains accurate pretightening force.
Description of drawings
Fig. 1 is the decomposing schematic representation of mechanical type nut apparatus of the present invention;
Fig. 2 was the bottom decorative pattern schematic diagram of packing ring 4;
Fig. 3 is that mechanical type nut apparatus of the present invention connects sectional drawing (not containing kingbolt);
Fig. 4 A is mechanical type nut apparatus connection diagram of the present invention (containing kingbolt and application of force handle);
Fig. 4 B is the plan view of Fig. 4 A;
Fig. 4 C is that Fig. 4 B is along the sectional view of AA line;
Attached number in the figure explanation:
1, nut;
2, thread barrel circle;
3, the fillet of screw;
4, packing ring
5, the first contact base surface;
6, the second contact base surface;
7, kingbolt;
8, the first application of force handle;
9, the second application of force handle.
Embodiment
Specific embodiments of the present invention are further described in detail below in conjunction with accompanying drawing, but should not limit protection scope of the present invention with this.
See also Fig. 1, this figure is the decomposing schematic representation of the present invention's four controllable mechanical type nut apparatus of parts frictional force, comprises the nut 1 that contains accurate internal thread, contains common internal thread and accurate externally threaded thread barrel circle 2, contains the packing ring 4 of internal spline and the fillet of screw that contains common internal thread and external splines 3 that coordinates with it.The internal diameter of this nut 1 is complementary with the external diameter of this thread barrel circle 2, in order to be socketed by screw thread.The external diameter of these fillet of screw 3 peripheries and shape are complementary with internal diameter and the shape of packing ring 4, in order to be socketed by spline.The common internal thread that the inboard of thread barrel circle 2, the fillet of screw 3 is provided with is complementary with kingbolt main body outside thread to be connected, in order to be socketed by screw thread.
See also Fig. 3, be the sectional drawing after each parts connection of mechanical type nut apparatus of the present invention, match each other between the accurate outside thread of the accurate internal thread of nut 1 inboard and thread barrel circle 2 peripheries in the present embodiment, can not affect the distortion inaccuracy of bolt tension to guarantee the frictional force between the connecting thread face; Nut 1 is accurately machined smooth surface with packing ring 4 surface of contact, can not affect the distortion inaccuracy of bolt tension to guarantee the frictional force between faying surface; Packing ring 4 bottoms are provided with the out-of-flatness decorative pattern.See also Fig. 2, the present embodiment is the decorative pattern of zigzag system, and this multiple tooth shape bottom surface contacts with contacting the base surface surface when clamping bolt, for increasing the frictional force of the packing ring 4 that contains internal spline with contact base surface surface of contact.
See also Fig. 4 A～4C, for mechanical type nut apparatus connection diagram of the present invention and overlook, sectional view, kingbolt 7 passes the first contact base surface 5 and contacts the attachment hole of base surface 6 with second with nut 1 socket of the present invention's machinery nut apparatus, closely links together thereby the first contact base surface 5 is contacted base surface 6 with second; Kingbolt 7 is established threaded main body and is connected mutually with the common internal thread of thread barrel circle 2 inboards and the common internal thread of the fillet of screw 3 respectively; Nut 1 is inner to be connected by accurate thread with thread barrel circle 2, nut 1 lower surface and smooth smooth contact of packing ring 4 upper surfaces; Packing ring 4 is inner passes through spline joint with the fillet of screw 3, and the lower surface that packing ring 4 has the flexuose decorative pattern amplexiforms mutually with the first contact base surface 5.During utilization, be provided with one first application of force handle 8 with nut 1 inlay card in interior, so that the application of force makes nut 1 rotation; And be provided with one second application of force handle 9 with packing ring 4 inlay cards in interior, in order to apply reaction force, with further retaining washer 4.Wherein, the first contact base surface, the second contact base surface can be flange or device external link etc.
When using the fastening mechanical type nut apparatus of the present invention of torque method to connect with bolt, by moment of torsion turn application of force handle 8, impel nut 1 rotation, drive the thread barrel circle 2 that connects by accurate thread with it and upwards produce relative displacement; Further, thread barrel circle 2 synchronously upwards produces the trend of displacement by common internal thread drive work bolt 7; Work bolt 7 drives the synchronous trend to top offset of the fillet of screw 3 to top offset; Packing ring 4 is provided with the effect of the super large frictional force that the lower surface of jagged decorative pattern produces due to the counter-force that is subject to application of force handle 9 and packing ring 4, keep static and do not rotate, so keep not rotating with its fillet of screw 3 by spline joint.Under above-mentioned comprehensive function, the stressed stretching of kingbolt 7, but keep not rotating.At this moment, the nut 1 that contains accurate internal thread smoothly amplexiforms with the surface of contact highi degree of accuracy that contains the packing ring 4 of internal spline, frictional force balanced (actual frictional force is very little herein), the deformation error that exists in minimizing work bolt tension process, and the highi degree of accuracy interlock screw thread that further thread barrel circle 2 and nut are 1, frictional force balanced (actual frictional force is very little herein) can further reduce the deformation error that exists in work bolt tension process.When using calibrated wrench method tightening nut bolt, the application of the invention mechanical type nut apparatus can overcome the change in friction force of conventional nut bolt, makes bolt reach accurate elastic deformation amount, finally makes bolt obtain accurate pretightening force.
The above is only preferred embodiment of the present invention, is not to limit practical range of the present invention.Have in technical field under any and usually know the knowledgeable, without departing from the spirit and scope of the present invention, when can do various changes and retouching, so protection scope of the present invention is as the criterion when looking claims institutes confining spectrum.
Claims (8)
1. a mechanical type nut apparatus, is characterized in that, comprises
One nut, this nut inboard is provided with internal thread;
One thread barrel circle, this thread barrel circle inboard are provided with internal thread, and the outside is provided with outside thread with screw thread
Be socketed on in aforementioned nut;
One fillet of screw is provided with external splines outside this fillet of screw, and the inboard is provided with internal thread;
One packing ring, this packing ring inboard are provided with internal spline, are connected to outside the aforementioned fillet of screw with spline housing;
Described packing ring and the described fillet of screw can be under external force, and generation moves to axial.
2. mechanical type nut apparatus as claimed in claim 1, is characterized in that, described nut lower surface is with smooth smooth the amplexiforming of upper surface of washer.
3. mechanical type nut apparatus as claimed in claim 1, is characterized in that, described packing ring lower surface is non-smooth flat.
4. mechanical type nut apparatus as claimed in claim 3, is characterized in that, described non-smooth lower surface is jagged decorative pattern.
5. mechanical type nut apparatus as claimed in claim 1, is characterized in that, the internal thread of described nut is accurate internal thread, and the outside thread of described thread barrel circle is accurate outside thread.
6. mechanical type nut apparatus as claimed in claim 1, is characterized in that, described thread barrel circle internal thread is regular screw threads, and the internal thread of the described fillet of screw is regular screw threads.
7. a bolt that adapts with the described nut apparatus of claim 1, is characterized in that, the screw thread on this bolt body is complementary with the internal thread of described thread barrel circle and the described fillet of screw, and by screw thread with described thread barrel circle be connected the fillet of screw and connect respectively.
8. bolt as claimed in claim 7, is characterized in that, the screw thread on described bolt body is regular screw threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100604844A CN103133498A (en) | 2013-02-26 | 2013-02-26 | Mechanical nut device and bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100604844A CN103133498A (en) | 2013-02-26 | 2013-02-26 | Mechanical nut device and bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103133498A true CN103133498A (en) | 2013-06-05 |
Family
ID=48493778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100604844A Pending CN103133498A (en) | 2013-02-26 | 2013-02-26 | Mechanical nut device and bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103133498A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963928A (en) * | 2015-07-22 | 2015-10-07 | 李圣用 | System for reducing wind driven generator bolt scheduled maintenance frequency |
| US20170022978A1 (en) * | 2015-07-22 | 2017-01-26 | Kevin Sheng-Yong Li | System for reducing maintenance frequency for bolts and nuts of wind turbine |
| CN106837980A (en) * | 2016-04-20 | 2017-06-13 | 李圣用 | A kind of combined type self-reaction force stop nut with pinpoint accuracy torque coefficient |
| WO2017181736A1 (en) * | 2016-04-20 | 2017-10-26 | 李圣用 | Combinatory locknut having self reaction force and high precision torque coefficient |
| CN113551323A (en) * | 2021-07-23 | 2021-10-26 | 安第斯(浙江)能源科技有限公司 | Dehumidifier and control system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2132019Y (en) * | 1992-03-28 | 1993-05-05 | 叶中午 | Combined lock pad for screw fastening |
| CN2372497Y (en) * | 1998-04-13 | 2000-04-05 | 谢成林 | Theft-proof nut and complete set of tool |
| JP2001165136A (en) * | 1999-11-24 | 2001-06-19 | John K Junkers | Screwed type connector |
| US20030198533A1 (en) * | 2001-12-06 | 2003-10-23 | Junkers John K. | Washer for fastener and for fastening of objects |
| CN202531587U (en) * | 2012-02-22 | 2012-11-14 | 王凤丽 | Screw type driving tensioning mechanism |
| CN203201965U (en) * | 2013-02-26 | 2013-09-18 | 李圣用 | Mechanical nut device and bolt |
-
2013
- 2013-02-26 CN CN2013100604844A patent/CN103133498A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2132019Y (en) * | 1992-03-28 | 1993-05-05 | 叶中午 | Combined lock pad for screw fastening |
| CN2372497Y (en) * | 1998-04-13 | 2000-04-05 | 谢成林 | Theft-proof nut and complete set of tool |
| JP2001165136A (en) * | 1999-11-24 | 2001-06-19 | John K Junkers | Screwed type connector |
| US20030198533A1 (en) * | 2001-12-06 | 2003-10-23 | Junkers John K. | Washer for fastener and for fastening of objects |
| CN202531587U (en) * | 2012-02-22 | 2012-11-14 | 王凤丽 | Screw type driving tensioning mechanism |
| CN203201965U (en) * | 2013-02-26 | 2013-09-18 | 李圣用 | Mechanical nut device and bolt |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963928A (en) * | 2015-07-22 | 2015-10-07 | 李圣用 | System for reducing wind driven generator bolt scheduled maintenance frequency |
| US20170022978A1 (en) * | 2015-07-22 | 2017-01-26 | Kevin Sheng-Yong Li | System for reducing maintenance frequency for bolts and nuts of wind turbine |
| CN106837980A (en) * | 2016-04-20 | 2017-06-13 | 李圣用 | A kind of combined type self-reaction force stop nut with pinpoint accuracy torque coefficient |
| WO2017181736A1 (en) * | 2016-04-20 | 2017-10-26 | 李圣用 | Combinatory locknut having self reaction force and high precision torque coefficient |
| CN106837980B (en) * | 2016-04-20 | 2020-02-07 | 李圣用 | Combined self-reaction anti-loose nut with high-precision torque coefficient |
| CN113551323A (en) * | 2021-07-23 | 2021-10-26 | 安第斯(浙江)能源科技有限公司 | Dehumidifier and control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130605 |