CN213808430U - Self-reaction force anti-unbalance loading washer - Google Patents
Self-reaction force anti-unbalance loading washer Download PDFInfo
- Publication number
- CN213808430U CN213808430U CN202021805017.1U CN202021805017U CN213808430U CN 213808430 U CN213808430 U CN 213808430U CN 202021805017 U CN202021805017 U CN 202021805017U CN 213808430 U CN213808430 U CN 213808430U
- Authority
- CN
- China
- Prior art keywords
- washer
- packing ring
- reaction force
- unbalance loading
- flange
- 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.)
- Active
Links
Images
Landscapes
- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model provides a from reaction force anti-unbalance loading packing ring, belongs to the machine-building technical field, including upper surface, lower surface, the upper surface of packing ring is smooth plane, the lower surface of packing ring is equipped with anti-skidding groove, the side a week of packing ring is equipped with the profile of tooth slot. The utility model discloses can prevent to prevent the rotatory damage to the flange surface of in-process packing ring of revolving the twisted nut, prevent the bolt unbalance loading, improve flange joint rigidity to reduce the packing ring and to the influence of torque control for the purpose.
Description
Technical Field
The utility model belongs to the technical field of the machine-building, concretely relates to from anti-reaction force unbalance loading packing ring.
Background
The connection of the flange sealing structure is a connection mode of pipelines and equipment commonly used in the petrochemical industry. In the process of fastening flange bolts, due to the existence of a reaction arm, the bolts can generate unbalance loading and thread deformation, the loss of torque applied to the nut becomes uncontrollable, and the accurate conversion of the torque into the tensile force is seriously influenced. In the process of screwing the nut, the traditional flat washer is easy to rotate, and the flange supporting surface is seriously damaged under the friction action with the supporting surface of the connected flange, so that the torque borne by the bolt cannot meet the specified requirement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at prevents to prevent at the rotatory damage to the flange surface of the in-process packing ring of revolving the twisted nut in order to realize, prevents the bolt unbalance loading, improves flange joint rigidity to reduce the influence of packing ring to torque control and be the purpose.
The utility model adopts the following technical scheme:
the utility model provides a from reaction force anti-unbalance loading packing ring, includes upper surface, lower surface, the upper surface of packing ring is smooth plane, the lower surface of packing ring is equipped with anti-skidding groove, the side a week of packing ring is equipped with the profile of tooth slot.
Further, the washer is assembled via a coaxial reaction torque wrench, and the toothed groove matches a groove on the coaxial reaction torque wrench.
Further, the anti-skid grooves are rotationally arranged at an angle of 10 degrees anticlockwise, and the contact surfaces are provided with an inclination angle of 5 degrees at the same time.
The utility model discloses an advantage and effect do:
the utility model discloses a from unbalance loading packing ring is prevented to reaction force, the upper surface of packing ring is smooth surface, has reduced the coefficient of friction between nut and the packing ring, has reduced frictional resistance. The outer edge of the washer is provided with a tooth-shaped groove which is assembled with a coaxial reaction force torque wrench to prevent the washer from rotating along with the rotation. The lower surface of the washer is provided with an anti-skid groove, and the washer does not rotate along with the nut in the fastening process. Because the surface of the washer is a smooth surface and the relative rotation with the nut is sliding friction, the torque loss when the nut is screwed is reduced, and the influence of the bias torque on the torque applied to the bolt is reduced. The surface provided with the anti-skidding groove is in contact with the flange supporting surface, no relative movement exists in the fastening process, and the flange supporting surface is protected from being damaged. The tooth-shaped groove on the outer edge of the gasket is convenient for a special machine to implement a self-reaction technology. The washer has the characteristics of simple structure, reusability, no need of a follow-up rotation prevention wrench, no torque arm, wide application occasions and the like.
Drawings
FIG. 1 is a front view of the self-reacting force anti-unbalance loading washer of the present invention;
FIG. 2 is a schematic reverse side view of the self-reacting force anti-unbalance loading washer of the present invention;
FIG. 3 is a side view of the self-reacting force anti-unbalance loading washer of the present invention;
fig. 4 is a schematic view of the assembly structure of the present invention.
The components in the figure: 1 is the upper surface, 2 is the lower surface, 3 is the tooth-shaped slot, 4 is anti-skidding groove, 5 is the bolt, 6 is nut I, 7 is the packing ring, 8 is flange I, 9 is flange II, 10 is nut II.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
The utility model provides a from reaction force anti-unbalance loading packing ring, includes upper surface, lower surface, the upper surface of packing ring is smooth plane, the lower surface of packing ring is equipped with anti-skidding groove, the side a week of packing ring is equipped with the profile of tooth slot. The gasket is assembled by a coaxial reaction force torque wrench, and the tooth-shaped groove is matched with a groove on the coaxial reaction force torque wrench. The anti-unbalance-loading washer is subjected to integral hardening treatment, the upper surface is a smooth surface, sliding friction is formed between the anti-unbalance-loading washer and a contact surface of a nut, the friction resistance is small, and the axial force of the bolt is improved. The lower surface of the gasket is provided with an anti-skid groove which is rotationally arranged at an angle of about 10 degrees anticlockwise, and the contact surface is provided with an inclination angle of about 5 degrees simultaneously, so that the gasket is in line contact with the support surface of the connecting piece, and the pressure is improved under the same pressure. In the process of screwing the nut, the washer and the supporting surface of the connecting piece do not move relatively, and the supporting surface of the connecting piece is protected from being damaged. The tooth-shaped groove on the side edge of the washer is matched with the self-reaction arm wrench, so that the problem of unbalance loading in the bolt fastening process is solved.
The utility model discloses a from unbalance loading packing ring is prevented to reaction force, the upper surface of packing ring is smooth surface, has reduced the coefficient of friction between nut and the packing ring, has reduced frictional resistance. The outer edge of the washer is provided with a tooth-shaped groove which is assembled with a coaxial reaction force torque wrench to prevent the washer from rotating along with the rotation. The lower surface of the washer is provided with an anti-skid groove, and the washer does not rotate along with the nut in the fastening process. Because the surface of the washer is a smooth surface and the relative rotation with the nut is sliding friction, the torque loss when the nut is screwed is reduced, and the influence of the bias torque on the torque applied to the bolt is reduced. The surface provided with the anti-skidding groove is in contact with the flange supporting surface, no relative movement exists in the fastening process, and the flange supporting surface is protected from being damaged. The tooth-shaped groove on the outer edge of the gasket is convenient for a special machine to implement a self-reaction technology.
The self-reaction force anti-unbalance loading washer is arranged below the nut, the surface of the washer, which is in contact with the flange supporting surface, is provided with an anti-skid groove, the outer edge is provided with a tooth-shaped groove, and the whole body is subjected to hardening treatment, so that the requirements of the CSEI/JX 0004 and 2018 technical specifications are met. A coaxial reaction torque wrench is required for installation. Because no reaction arm exists in the nut fastening process, the rigidity of flange bolt connection can be improved, the unbalance loading caused by the reaction arm is eliminated, and the torque is more accurately converted into the stretching of the bolt. Can be widely used for connecting equipment and flanges in the petrochemical industry.
During installation, the bolt and the nut II are screwed firstly, the flange II and the flange I which need to be connected are penetrated, the gasket is penetrated through the bolt, the end face with the anti-skidding groove is attached to the supporting face of the flange I, the nut I is screwed to be attached to the upper end face of the gasket, and the gasket, the supporting face of the flange I and the surface contacted with the nut I are lubricated. After the attachment connection is completed, fastening and torque verification of the flange bolt group are completed by using a special machine according to the set construction torque and following the principles of synchronization, sequencing and step-by-step.
Due to the fact that the self-reaction force anti-unbalance loading washer is additionally arranged, the influence of the offset torque on the torque applied to the bolt is reduced, the rigidity of flange connection is improved, the conversion of torque is more accurate, the reliability of the flange connection is improved, the probability of flange leakage is reduced, and the equipment operation target of zero leakage, low emission and long period in the petrochemical industry is achieved.
Claims (2)
1. The utility model provides a from anti-reaction off-loading packing ring which characterized in that: the anti-unbalance-loading washer is a gear ring and comprises an upper surface (1) and a lower surface (2), the upper surface (1) of the washer is a smooth plane, the lower surface (2) of the washer is provided with an anti-skidding groove (4), and a tooth-shaped groove (3) is formed in the periphery of the side edge of the washer; the anti-skid grooves (4) are rotationally arranged at an angle of 10 degrees anticlockwise, and the contact surfaces have inclination angles of 5 degrees at the same time; the anti-unbalance loading washer is arranged between the nut and the upper end face of the flange.
2. A self-reacting force anti-bias load washer according to claim 1, wherein: the gasket is assembled through a coaxial reaction force torque wrench, and the tooth-shaped groove (3) is matched with a groove on the coaxial reaction force torque wrench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021805017.1U CN213808430U (en) | 2020-08-26 | 2020-08-26 | Self-reaction force anti-unbalance loading washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021805017.1U CN213808430U (en) | 2020-08-26 | 2020-08-26 | Self-reaction force anti-unbalance loading washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213808430U true CN213808430U (en) | 2021-07-27 |
Family
ID=76951671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021805017.1U Active CN213808430U (en) | 2020-08-26 | 2020-08-26 | Self-reaction force anti-unbalance loading washer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213808430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263673A (en) * | 2021-11-19 | 2022-04-01 | 济南中船设备有限公司 | Tooth-shaped gasket for preventing bolt from following rotation and high-strength bolt connecting pair |
-
2020
- 2020-08-26 CN CN202021805017.1U patent/CN213808430U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263673A (en) * | 2021-11-19 | 2022-04-01 | 济南中船设备有限公司 | Tooth-shaped gasket for preventing bolt from following rotation and high-strength bolt connecting pair |
| CN114263673B (en) * | 2021-11-19 | 2024-05-28 | 济南中船设备有限公司 | Tooth-shaped gasket for preventing bolt from following rotation and high-strength bolt connection pair |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213808430U (en) | Self-reaction force anti-unbalance loading washer | |
| WO2022105082A1 (en) | Connection pair with composite inclined face or inclined groove type structure | |
| JPH0485A (en) | Tube joint | |
| WO2017181736A1 (en) | Combinatory locknut having self reaction force and high precision torque coefficient | |
| CN114704695A (en) | Rolling connection type lip-shaped sealing joint | |
| CN210889670U (en) | Retaining locknut for railway | |
| CN208281340U (en) | A kind of connection fastener | |
| CN212429481U (en) | High-strength bolt connection pair for wind power | |
| CN110792678A (en) | Structure for preventing nut from loosening | |
| CN215893994U (en) | Hub unit sealing ring torque test bench | |
| CN210371571U (en) | Universal self-locking fastening nut and fastening assembly | |
| CN210033637U (en) | Engine crankshaft signal panel mechanism | |
| CN210371583U (en) | Universal self-locking fastening washer and fastening assembly | |
| CN109083918A (en) | A kind of locking nut | |
| CN210686608U (en) | Self-locking nut for large-scale rotating equipment | |
| CN210106381U (en) | Self-locking thread pair | |
| US3962950A (en) | Bolt pretensioning device | |
| CN215487119U (en) | Locking nut for petrochemical | |
| CN215173030U (en) | High-air-tightness plate type flat welding flange | |
| CN211550244U (en) | Axle housing anti-loosening thread | |
| CN216554870U (en) | Self-tightening anti-loosening nut | |
| CN214535025U (en) | High pressure discharge connection structure | |
| CN213899570U (en) | Anti-loosening structure for runner piston rod and hub handle bolt of hydroelectric generating set | |
| CN216923552U (en) | Flange applied to flat-end pipeline system | |
| CN211820310U (en) | Anti-loose nut |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |