CN111692185A - Nut capable of displaying pressure value - Google Patents
Nut capable of displaying pressure value Download PDFInfo
- Publication number
- CN111692185A CN111692185A CN202010488831.3A CN202010488831A CN111692185A CN 111692185 A CN111692185 A CN 111692185A CN 202010488831 A CN202010488831 A CN 202010488831A CN 111692185 A CN111692185 A CN 111692185A
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- Prior art keywords
- ring sleeve
- ring
- spring
- sleeve
- limiting
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- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
Abstract
The invention belongs to the field of nuts, and particularly relates to a nut capable of displaying a pressure value, which comprises a ring sleeve A, a ring sleeve B, a guide rod A, a limiting block A, a ring sleeve D, a guide rod B, a limiting block B, a thread sleeve, a ring sleeve E, a spring A, a spring B and a limiting mechanism, wherein the ring sleeve B is rotatably matched with the outer side of the ring sleeve A matched with the side surface of a part to be connected, and three guide rods A are uniformly arranged on the end surface of the ring sleeve B in the circumferential direction; the invention can generate the required fastening pressure according to the requirement without using a torque wrench when connecting equipment or parts in high-end manufacturing industry, and the fastening pressure is the indicated value of the end surface of the ring sleeve E on the guide rod B, thereby achieving the purpose of displaying the fastening pressure when the bolt and the nut progress the equipment or the parts, and ensuring that the fastening pressure of the bolt on the equipment or the parts is moderate without damaging the equipment or the parts.
Description
Technical Field
The invention belongs to the field of nuts, and particularly relates to a nut capable of displaying a pressure value.
Background
The high-end manufacturing industry refers to the newly emerged industry with high technical content, high added value and strong competitiveness in the manufacturing industry. The bolt and nut applied in high-end manufacturing industry has higher requirements, and the fastening pressure of the bolt and nut in the high-end industry to two connected devices or parts is moderate. If the fastening pressure is too high, damage to the two devices or components to be connected can result; if the fastening pressure is too small, the function of fastening the two devices or components cannot be exerted.
In high-end manufacturing industries, a torque wrench is typically used to install the bolt and nut to provide moderate tightening pressure. However, the torque wrench cannot be completely adapted to different installation environments due to its few types of shapes. At this time, the bolt and the nut can only be installed by a corresponding common wrench, so that the fastening pressure of the bolt and the nut after fastening cannot be guaranteed to be moderate. Meanwhile, the traditional bolt and nut usually can be additionally provided with an auxiliary anti-loosening and anti-dropping auxiliary component for preventing looseness and even dropping caused by vibration of equipment or components in the using process, or the nut is specially designed to be self-locked and anti-loose, so that the installation efficiency of the bolt and nut is low, and the design and production cost of the nut is increased.
Therefore, it is necessary to design a nut that has anti-loosening function and can display fastening pressure for use in high-end industry.
The invention designs a nut capable of displaying a pressure value, and solves the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses a nut capable of displaying a pressure value, which is realized by adopting the following technical scheme.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally use, which are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
The utility model provides a nut that can show pressure value which characterized in that: the device comprises a ring sleeve A, a ring sleeve B, a guide rod A, a limiting block A, a ring sleeve D, a guide rod B, a limiting block B, a threaded sleeve, a ring sleeve E, a spring A, a spring B and a limiting mechanism, wherein the ring sleeve B is rotatably matched with the outer side of the ring sleeve A matched with the side surface of a part to be connected, and three guide rods A are uniformly arranged on the end surface of the ring sleeve B in the circumferential direction; the ring sleeve D which is the same with the ring sleeve B and the central axis is matched with the three guide rods A in an axial sliding manner, and the tail end of each guide rod A is provided with a limiting block A for limiting the sliding amplitude of the ring sleeve D; three guide rods B are uniformly arranged on the end surface of the ring sleeve D in the circumferential direction; the ring sleeve E which is the same with the ring sleeve D and the central axis is matched with the three guide rods A in an axial sliding mode, and the tail end of each guide rod A is provided with a limiting block B for limiting the sliding amplitude of the ring sleeve E; the ring sleeve D is positioned between the ring sleeve B and the ring sleeve E; one end of the ring sleeve E is provided with a hexagonal boss matched with the wrench.
A cylindrical threaded sleeve which is matched with the bolt in a threaded mode is fixedly arranged in the ring sleeve E and is in sliding fit with the inner wall of the ring sleeve D, the threaded sleeve assists the three guide rods B to support the ring sleeve D, the three guide rods A, the ring sleeve B and the ring sleeve A, the weight born by the three guide rods B is reduced, and the three guide rods are guaranteed not to bend. The ring sleeve B is connected with the ring sleeve D through a spring A which performs sliding reset on the ring sleeve D; the ring sleeve B is connected with the ring sleeve E through a spring B which performs sliding reset on the ring sleeve E; the outer side of the ring sleeve E is in threaded fit with a limiting mechanism, and the limiting mechanism is matched with the ring sleeve B; the limiting mechanism fixes the relative position between the ring sleeve B and the ring sleeve E in a fastening state.
The limiting mechanism comprises a ring sleeve F and a ring sleeve G, wherein the ring sleeve F with one end matched with the end face of the ring sleeve B is nested on the ring sleeve D, and the ring sleeve F is positioned between the ring sleeve B and the ring sleeve E; the ring sleeve G is nested and axially slides on the ring sleeve F; the ring sleeve G is in threaded fit with the ring sleeve E; the ring sleeve G and the ring sleeve F are provided with structures for fixing the relative positions of the ring sleeve G and the ring sleeve F.
As a further improvement of the technology, the outer cylindrical surface of the ring sleeve A is circumferentially provided with a ring groove A, the ring sleeve C arranged on the inner wall of the ring sleeve B rotates in the ring groove A, and the matching of the ring groove A and the ring sleeve C ensures that only relative circumferential rotation is generated between the ring sleeve A and the ring sleeve B and relative axial sliding is not generated, so that the frictional resistance between the ring sleeve A and the parts or equipment to be fastened when the parts or the equipment are fastened is reduced. The end surface of the ring sleeve D is circumferentially provided with three through guide grooves A, and the three guide rods A respectively slide in the three guide grooves A; three through guide grooves B are formed in the end face of the ring sleeve E in the circumferential direction, and the three guide rods B axially slide in the three guide grooves B respectively. The cooperation of the three guide rods A and the three guide grooves A ensures that the ring sleeve D only generates axial sliding relative to the ring sleeve B and does not generate circumferential rotation relative to the ring sleeve B. The cooperation of the three guide rods B and the three guide grooves B ensures that the ring sleeve E only slides relative to the ring sleeve D and does not rotate circumferentially relative to the ring sleeve D.
As a further improvement of the technology, the outer cylindrical surface of the ring sleeve F is symmetrically provided with two groups of limiting grooves, and each group of limiting grooves consists of a plurality of axially and uniformly distributed limiting grooves; a sharp corner A is arranged between every two adjacent limiting grooves; a plurality of limiting grooves in each group are matched with two limiting blocks C which slide in the radial direction in two corresponding sliding grooves B on the inner wall of the ring sleeve G; and a spring D for resetting the corresponding limiting block C is arranged in each sliding groove B. The limiting block C is provided with a sharp corner B matched with the sharp corner A at one end matched with the limiting groove, a limiting inclined plane is not arranged at one end matched with the limiting groove at the limiting block C, the sharp corner A and the sharp corner B are matched to ensure that the limiting block C meets the part between two adjacent limiting grooves, and the limiting block C can smoothly enter the corresponding limiting groove under the guide of the inclined plane on the sharp corner A and the sharp corner B, so that the fixation of the relative position between the counter sleeve F and the sleeve G is completed. Two sliding grooves A which are in one-to-one correspondence with the two groups of limiting grooves are symmetrically formed in the ring sleeve G; each sliding chute A is communicated with two sliding chutes B on the same side; a J rod which is triggered and driven by the end face of the cylindrical part of the ring sleeve E is axially slid in each sliding chute A, and a spring C for resetting the corresponding J rod is arranged in each sliding chute A; two wedge-shaped grooves axially distributed on the J rod are respectively matched with the limiting inclined planes on the two limiting blocks C on the same side.
As a further improvement of the technology, the inner wall of the ring sleeve G is provided with a ring groove B communicated with one end surface of the ring sleeve G, and the ring sleeve E is in threaded fit with the inner wall of the ring groove B; two guide blocks are symmetrically arranged on the outer side of the ring sleeve F, and the two guide blocks axially slide in two guide grooves C on the inner wall of the ring groove B respectively. The matching of the guide block and the guide groove C ensures that the ring sleeve F and the ring sleeve G only slide axially relative to each other and cannot rotate circumferentially relative to each other.
As a further improvement of the technology, the inner wall of the chute B is provided with a ring groove C; the spring D nested on the corresponding limiting block C is positioned in the corresponding annular groove C; one end of the spring D is connected with the inner wall of the corresponding annular groove C, and the other end of the spring D is connected with a tension spring ring which is nested on the limiting block C; one end of the spring C is connected with the inner wall of the corresponding sliding chute A, and the other end of the spring C is connected with the end surface of the corresponding J rod.
As a further improvement of the technology, the outer cylindrical surface of the ring sleeve G is circumferentially provided with anti-slip threads for preventing slipping.
As a further improvement of the technology, the guide rod B is provided with a scale for marking the fastening pressure value; the spring A and the spring B are made of the same material, and the elastic coefficient of the spring A is different from that of the spring B, so that when the spring A and the spring B are corroded in the same environment and the elasticity is reduced, the reduction range of the elasticity of the spring B is different from that of the spring A, the pressure balance of the spring A and the spring B is broken through the ring sleeve D, the ring sleeve D axially moves along the guide rod A, and the ring sleeve D drives the three guide rods B to synchronously move. When the balance between the spring A and the spring B is achieved again, the ring sleeve D generates certain axial displacement, and the tail ends of the three guide rods B generate certain displacement relative motion relative to the ring sleeve E, so that the scale values indicated by the end faces of the tail ends of the ring sleeve E on the guide rods B are changed. When the indication value on the guide rod is changed, the spring A and the spring B are damaged, and the spring A and the spring B need to be replaced by new springs or a new invention matched with the bolt needs to be replaced.
Compared with the traditional nut, the invention can generate the required fastening pressure according to the requirement without using a torque wrench when connecting equipment or components in high-end manufacturing industry, and the magnitude of the fastening pressure is the indicated value of the end surface of the ring sleeve E on the guide rod B, thereby achieving the purpose of displaying the fastening pressure when the bolt and the nut progress the equipment or the components, and ensuring that the fastening pressure of the bolt to the equipment or the components is moderate without damaging the equipment or the components.
At the same time, a new problem arises from the fact that the invention provides a moderate tightening pressure to the device or component to which it is fastened by means of the springs a and B. When the fastened equipment or parts vibrate, the vibrating equipment or parts can drive the ring sleeve B to move axially through the ring sleeve A, so that the equipment or parts are not restrained by the invention. The limiting mechanism can fix the relative position between the ring sleeve B and the ring sleeve E in a fastening state, and ensures that equipment or parts fastened by the invention cannot be loosened under the vibration condition, thereby ensuring that the equipment or the parts are continuously and effectively fastened and restrained by the invention.
When the spring A and the spring B are corroded, the stress balance of the ring sleeve D is broken, so that the numerical value indicated by the end face of the ring sleeve E on the guide rod B is changed, people are reminded to replace the spring A and the spring B, and effective fastening of equipment or parts is guaranteed. The invention has simple structure and better use effect.
Drawings
Fig. 1 is a schematic view of the invention in conjunction with a bolt.
Fig. 2 is a schematic cross-sectional view of the present invention in cooperation with a bolt.
Figure 3 is a schematic view of loop a.
Fig. 4 is a schematic cross-sectional view of the ring C, the ring B and the guide rod A.
Fig. 5 is a schematic view of the ring sleeve D and the guide rod B.
Fig. 6 shows the screw and ring combination E and its cross-section.
Fig. 7 is a schematic view of a spacing mechanism.
Fig. 8 is a schematic cross-sectional view of the spacing mechanism from two viewing angles.
Fig. 9 is a partial sectional schematic view of the spacing mechanism.
Fig. 10 is a schematic view of a loop F and a partial cross-section thereof.
Fig. 11 shows a ring sleeve G and its cross-section.
Fig. 12 is a partial cross-sectional view of the ring sheath G.
Fig. 13 is a schematic view of a J-bar.
Fig. 14 is a schematic view of stopper C from two viewing angles.
Number designation in the figures: 1. a bolt; 2. a ring sleeve A; 3. a ring groove A; 4. a ring sleeve B; 5. c, sleeving a ring sleeve; 6. a guide rod A; 7. a limiting block A; 8. a ring sleeve D; 9. a guide rod B; 10. a limiting block B; 11. a threaded sleeve; 12. a loop E; 13. a hexagonal boss; 14. a spring A; 15. a spring B; 16. a limiting mechanism; 17. a ring sleeve F; 18. a limiting groove; 19. a sharp corner A; 20. a guide block; 21. a ring sleeve G; 22. anti-skid lines; 23. a ring groove B; 24. a guide groove C; 25. a chute A; 26. a chute B; 27. a ring groove C; 28. a J rod; 29. a wedge-shaped groove; 30. a spring C; 31. a limiting block C; 32. a limiting inclined plane; 33. a sharp corner B; 34. a spring D; 35. a tension spring ring; 36. a guide groove A; 37. and a guide groove B.
Detailed Description
The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.
As shown in fig. 1 and 2, the device comprises a ring sleeve a2, a ring sleeve B4, a guide rod a6, a limit block a7, a ring sleeve D8, a guide rod B9, a limit block B10, a thread sleeve 11, a ring sleeve E12, a spring a14, a spring B15 and a limit mechanism 16, wherein as shown in fig. 2 and 4, the ring sleeve B4 is rotatably matched with the outer side of the ring sleeve a2 matched with the side surface of a component to be connected, and three guide rods a6 are uniformly arranged on the end surface of the ring sleeve B4 in the circumferential direction; the ring sleeve D8 which is the same as the ring sleeve B4 in central axis is matched with the three guide rods A6 in an axial sliding manner, and the tail end of the guide rod A6 is provided with a limiting block A7 for limiting the sliding amplitude of the ring sleeve D8; as shown in fig. 2 and 5, three guide rods B9 are uniformly arranged on the end surface of the ring sleeve D8 in the circumferential direction; the ring sleeve E12 which is the same as the ring sleeve D8 in central axis is matched with the three guide rods A6 in an axial sliding manner, and the tail end of the guide rod A6 is provided with a limiting block B10 for limiting the sliding amplitude of the ring sleeve E12; loop D8 was located between loop B4 and loop E12; as shown in fig. 2 and 6, one end of the ring sleeve E12 is provided with a hexagonal boss 13 for matching with a wrench.
As shown in fig. 2 and 6, a cylindrical threaded sleeve 11 in threaded fit with the bolt 1 is fixedly installed in the ring sleeve E12, the threaded sleeve 11 is in sliding fit with the inner wall of the ring sleeve D8, and the threaded sleeve 11 assists the three guide rods B9 to support the ring sleeve D8, the three guide rods a6, the ring sleeve B4 and the ring sleeve a2, so that the weight born by the three guide rods B9 is reduced, and the three guide rods are prevented from being bent. The ring sleeve B4 is connected with the ring sleeve D8 through a spring A14 which slides and resets the ring sleeve D8; the ring sleeve B4 is connected with the ring sleeve E12 through a spring B15 which slides and resets the ring sleeve E12; the outer side of the ring sleeve E12 is in threaded fit with a limiting mechanism 16, and the limiting mechanism 16 is matched with the ring sleeve B4; the stopper mechanism 16 fixes the relative position between the ring B4 and the ring E12 in the fastened state.
As shown in fig. 7 and 8, stopper mechanism 16 includes ring F17 and ring G21, wherein ring F17, one end of which is fitted to the end face of ring B4, is fitted over ring D8, and ring F17 is located between ring B4 and ring E12, as shown in fig. 2 and 8; the ring G21 nests and slides axially over the ring F17; ring G21 is in threaded fit with ring E12; as shown in fig. 8, 9 and 10, the ring G21 and the ring F17 have a structure for fixing the relative positions of the two.
As shown in fig. 2 and 3, the outer cylindrical surface of the ring sleeve a2 is circumferentially provided with a ring groove A3, the ring sleeve C5 mounted on the inner wall of the ring sleeve B4 rotates in the ring groove A3, and the cooperation of the ring groove A3 and the ring sleeve C5 ensures that only relative circumferential rotation is generated between the ring sleeve a2 and the ring sleeve B4, and relative axial sliding is not generated, so that the frictional resistance between the ring sleeve a2 and the parts or equipment to be fastened is reduced when the parts or equipment are fastened. As shown in fig. 2 and 5, three through guide grooves a36 are circumferentially formed on the end surface of the ring sleeve D8, and three guide rods a6 slide in the three guide grooves a36 respectively; as shown in fig. 2 and 6, three through guide grooves B37 are circumferentially formed on the end surface of the ring sleeve E12, and three guide rods B9 axially slide in the three guide grooves B37, respectively. The cooperation of the three guide rods a6 with the three guide slots a36 ensures that the ring D8 only slides axially relative to the ring B4 and does not rotate circumferentially relative to the ring B4. The cooperation of the three guide bars B9 and the three guide slots B37 ensures that the ring E12 only slides relative to the ring D8 and does not rotate circumferentially relative to the ring D8.
As shown in fig. 10, two sets of limiting grooves 18 are symmetrically formed in the outer cylindrical surface of the ring sleeve F17, and each set of limiting grooves 18 is composed of a plurality of axially and uniformly distributed limiting grooves 18; the part between two adjacent limiting grooves 18 is provided with a sharp corner A19; as shown in fig. 9, 11 and 12, the limiting grooves 18 in each group are matched with two limiting blocks C31 which slide radially in two corresponding sliding grooves B26 on the inner wall of the ring sleeve G21; each sliding groove B26 is provided with a spring D34 for returning the corresponding stopper C31. As shown in fig. 9, 10 and 14, the end of the stopper C31, which is engaged with the retaining groove 18, has a pointed angle B33 engaged with the pointed angle a19, the end of the stopper C31, which is not engaged with the retaining groove 18, has a retaining inclined surface 32, and the engagement between the pointed angle a19 and the pointed angle B33 ensures that the stopper C31 meets the portion between two adjacent retaining grooves 18, so that the stopper C31 can smoothly enter the corresponding retaining groove 18 under the guidance of the upper inclined surfaces of the pointed angle a19 and the pointed angle B33, thereby completing the fixation of the relative position between the ring sleeve F17 and the ring sleeve G21. As shown in fig. 11 and 12, two sliding grooves a25 corresponding to the two sets of limiting grooves 18 one to one are symmetrically formed in the ring sleeve G21; each sliding groove A25 is communicated with two sliding grooves B26 on the same side; as shown in fig. 2 and 8, a J-rod 28 which is triggered and driven by the end face of a cylindrical part of a ring sleeve E12 slides axially in each sliding chute a25, and a spring C30 which resets the corresponding J-rod 28 is arranged in each sliding chute a 25; as shown in fig. 9, 13 and 14, two wedge-shaped grooves 29 axially distributed on the J-rod 28 are respectively matched with the limit inclined surfaces 32 on the two limit blocks C31 on the same side.
As shown in fig. 2 and 12, the inner wall of the ring sleeve G21 is provided with a ring groove B23 communicated with one end face thereof, and the ring sleeve E12 is in threaded fit with the inner wall of the ring groove B23; as shown in fig. 8, two guide blocks 20 are symmetrically installed outside the ring sleeve F17, and the two guide blocks 20 axially slide in two guide grooves C24 on the inner wall of the ring groove B23, respectively. The cooperation of guide block 20 with guide channel C24 ensures that only relative axial sliding movement occurs between ring F17 and ring G21, but no relative circumferential rotation occurs.
As shown in fig. 9 and 12, the inner wall of the sliding groove B26 is provided with a ring groove C27; the spring D34 nested on the corresponding limit block C31 is positioned in the corresponding ring groove C27; one end of the spring D34 is connected with the inner wall of the corresponding ring groove C27, and the other end is connected with a tension spring ring 35 which is nested on the limiting block C31; one end of the spring C30 is connected with the inner wall of the corresponding sliding chute A25, and the other end is connected with the end face of the corresponding J rod 28.
As shown in fig. 7, the outer cylindrical surface of the ring sleeve G21 is circumferentially provided with anti-slip threads 22 for preventing slipping.
As shown in fig. 2 and 5, the guide rod B9 has a scale for marking the fastening pressure value; the spring A14 and the spring B15 are made of the same material, and the elastic coefficient of the spring A14 is different from that of the spring B15, so that when the spring A14 and the spring B15 are corroded in the same environment and the elasticity is reduced, the reduction amplitude of the elasticity of the spring B15 is different from that of the spring A14, the pressure balance of the ring sleeve D8 by the spring A14 and the spring B15 is broken, the ring sleeve D8 moves axially along the guide rod A6, and the ring sleeve D8 drives the three guide rods B9 to move synchronously. When the balance between spring a14 and spring B15 is re-established, the ring D8 is displaced axially and the ends of the three rods B9 move relative to the ring E12 by a displacement, so that the scale value of the rod B9 indicated by the end face of the ring E12 changes. When the indication value on the guide rod is changed, the spring A14 and the spring B15 are damaged, and the spring A14 and the spring B15 need to be replaced, or a new invention needs to be replaced to be matched with the bolt 1.
The sharp corner A19 between two adjacent limiting grooves 18 and the sharp corner B33 at the tail end of the limiting block C31 are mutually matched, so that the limiting block C31 can still smoothly enter the limiting groove 18 under the condition that the limiting block C31 is not aligned with the limiting groove 18.
The working process of the invention is as follows: in the initial state, the threaded sleeve 11 is screwed onto the bolt 1. The wedge-shaped groove 29 on the J-shaped rod 28 does not limit the radial movement of the limiting block C31, and both springs C30 are in a tension energy storage state. The ends of the two J-bars 28 project beyond the annular face of the annular groove B23. The four springs D34 are in a natural elongated state. The four stopper blocks C31 do not limit the extension and retraction of the stopper mechanism 16. The three limit blocks A7 are simultaneously contacted with the end face of the ring sleeve D8, and the three limit blocks B10 are simultaneously contacted with the end face of the ring sleeve E12. Spring A14 and spring B15 are both in a pre-stressed energy-storage state. The end face of the ring E12 indicates a zero scale line on the guide bar B9. The end face of the ring F17 contacts the end face of the ring B4.
When the device or the part needs to be connected with the bolt 1 in a matching way by using the invention, a wrench is used for matching with the hexagonal boss 13 on the ring E12 to rotate the ring E12, the ring E12 drives the screw sleeve 11 to rotate relative to the bolt 1, and the screw sleeve 11 drives the ring E12 to move axially towards the device or the part to be fastened. Ring E12 drives ring D8 to move synchronously via spring B15, and ring D8 drives ring B4 and ring A2 to move synchronously towards the part or device via spring A14. Meanwhile, the ring sleeve E12 drives the ring sleeve D8 to rotate synchronously through the three guide rods B9, and the ring sleeve D8 drives the ring sleeve B4 and the ring sleeve A2 to rotate synchronously through the three guide rods A6.
Movement is stopped when ring a2 meets the surface of the device or component, and ring E12 continues to be rotated. Ring E12 continues to move ring D8 by further compressing spring B15, and ring D8 further compresses spring A14. Spring A14 drives ring A2 to squeeze against the surface of the device or component via ring B4. The ring E12 slides relative to the three guide rods B9, and the end face of the ring E12 indicates that the scale value on the guide rod B9 is gradually increased. At the same time, ring E12 is rotated relative to ring a2 by a series of drive belt rings B4.
During the rotation of the ring sleeve E12, the ring sleeve G21 in threaded fit with the ring sleeve E12 rotates synchronously, and the ring sleeve G21 drives the ring sleeve F17 to rotate synchronously through the two guide blocks 20. Under the resistance of ring B4, ring F17 slides in a telescoping manner relative to ring G21. The limiting grooves 18 on the ring sleeve F17 interact with sharp corners B33 at the tail ends of the four limiting blocks C31, so that the four limiting blocks C31 respectively reciprocate in the radial direction under the action of the corresponding springs D34 and sequentially cross the limiting grooves 18 to generate rattling.
When the scale value indicated by the end face of the ring E12 reaches the fastening pressure value required by the fastened part or equipment, the ring E12 stops rotating. At this time, by manually rotating ring sleeve G21, ring sleeve G21 is moved axially toward the device or component to be fastened by ring sleeve E12, which is screw-engaged with it, and ring sleeve G21 drives ring sleeve F17 to rotate synchronously via two guide blocks 20. With the obstruction of loop B4, loop G21 and loop F17 continue relative contraction movement. When the ends of the two J-rods 28 meet the end face of the ring E12, the two J-rods 28 slide axially away from the ring B4 under the stop of the ring E12, and the two springs C30 are further extended to store energy. The two wedge-shaped grooves 29 on each J-rod 28 respectively and simultaneously interact with the ends of the two stoppers C31 on the same side and drive the two stoppers C31 to slide radially in the stopper grooves 18 on the ring sleeve F17. The stopper C31 gradually locks the relative position between the ring G21 and the ring F17, and the four springs D34 are compressed to store energy.
When the end face of the ring groove B23 on the ring sleeve G21 meets the end face of the ring sleeve E12, the radial locking of the wedge-shaped grooves 29 on the two J rods 28 to the four limit blocks C31 reaches the limit, the sharp corners B33 on the four limit blocks C31 completely enter the corresponding limit grooves 18, the vertical surfaces of the limit blocks C31 are matched with the inner wall of the limit grooves 18 and completely limit the relative positions of the ring sleeve F17 and the ring sleeve G21, and therefore the overall length of the ring sleeve G21 and the ring sleeve F17 is fixed.
Ring F17 and ring G21 indirectly fix the spacing between ring E12 and ring A2, since the overall length of ring F17 and ring G21 is locked by the engagement of J-bar 28 with stopper C31, and ring G21 is threadably engaged with ring E12. So that ring a2 does not move axially relative to ring E12 under vibration of the fastened device or component, thereby ensuring continued fastening of ring a2 to the fastened device or component without loosening.
After long-time fastening use, when the elasticity of the spring A14 and the spring B15 is weakened due to corrosion, the elasticity reducing amplitude of the spring B15 is different from that of the spring A14 due to the fact that the spring A14 and the spring B15 are made of the same material and the elasticity coefficient of the spring A14 is different from that of the spring B15, therefore, the pressure balance of the ring sleeve D8 due to the spring A14 and the spring B15 is broken, the ring sleeve D8 moves axially along the guide rod A6, and the ring sleeve D8 drives the three guide rods B9 to move synchronously. When the balance between spring a14 and spring B15 is re-established, the ring D8 is displaced axially and the ends of the three rods B9 move relative to the ring E12 by a displacement, so that the scale value of the rod B9 indicated by the end face of the ring E12 changes. When the indication value on the guide rod is changed, the spring A14 and the spring B15 are damaged, and the spring A14 and the spring B15 need to be replaced, or a new invention needs to be replaced to be matched with the bolt 1.
When it is desired to remove the invention from the bolt 1 in the tightened state, the collar E12 is rotated in the opposite direction relative to the bolt 1 by a wrench interacting with the hex boss 13 on the collar E12. The ring sleeve E12 drives the screw sleeve 11 to synchronously rotate, and under the action of the bolt 1 in threaded fit with the screw sleeve 11, the screw sleeve 11 drives the ring sleeve E12 to synchronously move axially away from the surface of equipment or a component fastened by the screw sleeve. With the axial movement of ring E12, ring B4 and ring D8 move axially away from ring E12 under the restoring action of spring A14 and spring B15, and ring B4 forces ring A2 to maintain compression against the surface of the fastening device. At the same time, ring E12 is rotated synchronously with respect to ring a2 by a series of drive belt moving rings B4.
When the spring A14 and the spring B15 return to the initial state, the stopper A7 is in contact with the end face of the ring sleeve D8 again, and the stopper C31 is in contact with the end face of the ring sleeve E12 again. Continuing to rotate the ring E12, the ring E12 disengages the surface of the fastened device or component through a series of drive belt rings a2 and eventually rotates off the bolt 1. After the present invention is unscrewed from bolt 1, ring G21 is manually rotated in the opposite direction relative to ring E12, with the end face of ring E12 gradually moving away from the end face of groove B23 in ring G21. Under the reset action of the spring C30, the two J rods 28 are reset gradually at the same time, and the wedge grooves 29 on the two J rods 28 are simultaneously and gradually contacted with the limits of the four limit blocks C31. Under the reset action of the spring D34, the four limit blocks C31 are gradually separated from the limit grooves 18 at the same time and the limit on the relative position fixing between the ring sleeve G21 and the ring sleeve F17 is released.
When the ring G21 and the ring E12 return to their original relative positions, the two J-rods 28 return to their original positions in the ring G21. At this point, ring F17 is pulled by hand relative to ring G21 until the end face of ring F17 again contacts the end face of ring B4. During the process that the ring sleeve F17 extends relative to the ring sleeve G21, the limiting grooves 18 on the ring sleeve F17 interact with sharp corners B33 at the tail ends of the four limiting blocks C31, so that the four limiting blocks C31 respectively reciprocate in the radial direction under the action of corresponding springs D34 and sequentially pass through the limiting grooves 18 to generate rattling motion.
In conclusion, the beneficial effects of the invention are as follows: the invention can generate required fastening pressure according to the requirement without using a torque wrench when connecting equipment or components in high-end manufacturing industry, the fastening pressure is an indication value of the end surface of the ring sleeve E12 on the guide rod B9, thereby achieving the purpose of displaying the fastening pressure when the bolt 1 and the nut advance the equipment or the components, and ensuring that the fastening pressure of the bolt 1 on the equipment or the components is moderate without damaging the equipment or the components.
At the same time, a new problem arises from the fact that the present invention provides a moderate tightening pressure to the device or component to which it is tightened by means of spring a14 and spring B15. That is, when the fastened device or component vibrates, the vibrating device or component will move the ring B4 axially through the ring a2, thereby causing the present invention to lose its constraint. The limiting mechanism 16 of the present invention can fix the relative position between the ring B4 and the ring E12 in the fastening state, so as to ensure that the equipment or component fastened by the present invention will not loosen under the vibration condition, thereby ensuring the continuous and effective fastening and restriction of the equipment or component by the present invention.
When the spring A14 and the spring B15 corrode, the force balance of the ring sleeve D8 is broken, so that the numerical value indicated by the end face of the ring sleeve E12 on the guide rod B9 is changed, people are reminded to replace the spring A14 and the spring B15, and equipment or parts are guaranteed to be effectively fastened.
Claims (7)
1. The utility model provides a nut that can show pressure value which characterized in that: the device comprises a ring sleeve A, a ring sleeve B, a guide rod A, a limiting block A, a ring sleeve D, a guide rod B, a limiting block B, a threaded sleeve, a ring sleeve E, a spring A, a spring B and a limiting mechanism, wherein the ring sleeve B is rotatably matched with the outer side of the ring sleeve A matched with the side surface of a part to be connected, and three guide rods A are uniformly arranged on the end surface of the ring sleeve B in the circumferential direction; the ring sleeve D which is the same with the ring sleeve B and the central axis is matched with the three guide rods A in an axial sliding manner, and the tail end of each guide rod A is provided with a limiting block A for limiting the sliding amplitude of the ring sleeve D; three guide rods B are uniformly arranged on the end surface of the ring sleeve D in the circumferential direction; the ring sleeve E which is the same with the ring sleeve D and the central axis is matched with the three guide rods A in an axial sliding mode, and the tail end of each guide rod A is provided with a limiting block B for limiting the sliding amplitude of the ring sleeve E; the ring sleeve D is positioned between the ring sleeve B and the ring sleeve E; one end of the ring sleeve E is provided with a hexagonal boss matched with the wrench;
a cylindrical threaded sleeve which is matched with the bolt thread is fixedly arranged in the ring sleeve E, and the threaded sleeve is in sliding fit with the inner wall of the ring sleeve D; the ring sleeve B is connected with the ring sleeve D through a spring A which performs sliding reset on the ring sleeve D; the ring sleeve B is connected with the ring sleeve E through a spring B which performs sliding reset on the ring sleeve E; the outer side of the ring sleeve E is in threaded fit with a limiting mechanism, and the limiting mechanism is matched with the ring sleeve B; the limiting mechanism fixes the relative position between the ring sleeve B and the ring sleeve E in a fastening state;
the limiting mechanism comprises a ring sleeve F and a ring sleeve G, wherein the ring sleeve F with one end matched with the end face of the ring sleeve B is nested on the ring sleeve D, and the ring sleeve F is positioned between the ring sleeve B and the ring sleeve E; the ring sleeve G is nested and axially slides on the ring sleeve F; the ring sleeve G is in threaded fit with the ring sleeve E; the ring sleeve G and the ring sleeve F are provided with structures for fixing the relative positions of the ring sleeve G and the ring sleeve F.
2. The nut capable of displaying the pressure value according to claim 1, wherein: the outer cylindrical surface of the ring sleeve A is circumferentially provided with a ring groove A, and a ring sleeve C arranged on the inner wall of the ring sleeve B rotates in the ring groove A; the end surface of the ring sleeve D is circumferentially provided with three through guide grooves A, and the three guide rods A respectively slide in the three guide grooves A; three through guide grooves B are formed in the end face of the ring sleeve E in the circumferential direction, and the three guide rods B axially slide in the three guide grooves B respectively.
3. The nut capable of displaying the pressure value according to claim 1, wherein: two groups of limiting grooves are symmetrically formed in the outer cylindrical surface of the ring sleeve F, and each group of limiting grooves consists of a plurality of axially and uniformly distributed limiting grooves; a sharp corner A is arranged between every two adjacent limiting grooves; a plurality of limiting grooves in each group are matched with two limiting blocks C which slide in the radial direction in two corresponding sliding grooves B on the inner wall of the ring sleeve G; a spring D for resetting the corresponding limiting block C is arranged in each sliding groove B; a sharp corner B matched with the sharp corner A is arranged at one end, matched with the limiting groove, of the limiting block C, and a limiting inclined plane is arranged at one end, not matched with the limiting groove, of the limiting block C; two sliding grooves A which are in one-to-one correspondence with the two groups of limiting grooves are symmetrically formed in the ring sleeve G; each sliding chute A is communicated with two sliding chutes B on the same side; a J rod which is triggered and driven by the end face of the cylindrical part of the ring sleeve E is axially slid in each sliding chute A, and a spring C for resetting the corresponding J rod is arranged in each sliding chute A; two wedge-shaped grooves axially distributed on the J rod are respectively matched with the limiting inclined planes on the two limiting blocks C on the same side.
4. The nut capable of displaying the pressure value according to claim 1, wherein: the inner wall of the ring sleeve G is provided with a ring groove B communicated with one end surface of the ring sleeve G, and the ring sleeve E is in threaded fit with the inner wall of the ring groove B; two guide blocks are symmetrically arranged on the outer side of the ring sleeve F, and the two guide blocks axially slide in two guide grooves C on the inner wall of the ring groove B respectively.
5. The nut capable of displaying the pressure value according to claim 3, wherein: the inner wall of the chute B is provided with a ring groove C; the spring D nested on the corresponding limiting block C is positioned in the corresponding annular groove C; one end of the spring D is connected with the inner wall of the corresponding annular groove C, and the other end of the spring D is connected with a tension spring ring which is nested on the limiting block C; one end of the spring C is connected with the inner wall of the corresponding sliding chute A, and the other end of the spring C is connected with the end surface of the corresponding J rod.
6. The nut capable of displaying the pressure value according to claim 1, wherein: the outer side cylindrical surface of the ring sleeve G is circumferentially provided with anti-slip threads for preventing slipping.
7. The nut capable of displaying the pressure value according to claim 1, wherein: the spring A and the spring B are made of the same material, and the elastic coefficient of the spring A is different from that of the spring B; the guide rod B is provided with scales for marking the fastening pressure value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010488831.3A CN111692185B (en) | 2020-06-02 | 2020-06-02 | Nut capable of displaying pressure value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010488831.3A CN111692185B (en) | 2020-06-02 | 2020-06-02 | Nut capable of displaying pressure value |
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| Publication Number | Publication Date |
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| CN111692185A true CN111692185A (en) | 2020-09-22 |
| CN111692185B CN111692185B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010488831.3A Active CN111692185B (en) | 2020-06-02 | 2020-06-02 | Nut capable of displaying pressure value |
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| Country | Link |
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| CN (1) | CN111692185B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211083A (en) * | 2020-11-10 | 2021-01-12 | 湖南工学院 | Steel-concrete composite beam slab for small bridge and culvert and production method thereof |
| CN116753386A (en) * | 2023-08-18 | 2023-09-15 | 江苏五星波纹管有限公司 | Maintenance-free rotary compensator |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737385A (en) * | 2008-11-21 | 2010-06-16 | 瀚斯宝丽股份有限公司 | Combination member |
| JP2012228022A (en) * | 2011-04-18 | 2012-11-15 | Chugoku Electric Power Co Inc:The | Abrasion detecting tool |
| CN109322892A (en) * | 2018-11-05 | 2019-02-12 | 浙江瑞昭科技有限公司 | A kind of bolt and nut component |
| CN209539784U (en) * | 2019-02-20 | 2019-10-25 | 江西成德紧固件有限公司 | A kind of anti-loose anti-theft nut component |
| CN210153056U (en) * | 2019-05-09 | 2020-03-17 | 靖江市飞天紧固件制造有限公司 | Bolt inconvenient to fall off |
| US10605290B1 (en) * | 2015-07-22 | 2020-03-31 | Robert M. Roskwitalski | Connector assembly |
| CN210599799U (en) * | 2019-10-24 | 2020-05-22 | 东莞市跨标不锈钢紧固件有限公司 | Multifunctional anti-loosening screw |
| CN210599778U (en) * | 2019-10-12 | 2020-05-22 | 宁波宁力高强度紧固件有限公司 | Octagonal concave bolt with good connecting effect |
-
2020
- 2020-06-02 CN CN202010488831.3A patent/CN111692185B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737385A (en) * | 2008-11-21 | 2010-06-16 | 瀚斯宝丽股份有限公司 | Combination member |
| JP2012228022A (en) * | 2011-04-18 | 2012-11-15 | Chugoku Electric Power Co Inc:The | Abrasion detecting tool |
| US10605290B1 (en) * | 2015-07-22 | 2020-03-31 | Robert M. Roskwitalski | Connector assembly |
| CN109322892A (en) * | 2018-11-05 | 2019-02-12 | 浙江瑞昭科技有限公司 | A kind of bolt and nut component |
| CN209539784U (en) * | 2019-02-20 | 2019-10-25 | 江西成德紧固件有限公司 | A kind of anti-loose anti-theft nut component |
| CN210153056U (en) * | 2019-05-09 | 2020-03-17 | 靖江市飞天紧固件制造有限公司 | Bolt inconvenient to fall off |
| CN210599778U (en) * | 2019-10-12 | 2020-05-22 | 宁波宁力高强度紧固件有限公司 | Octagonal concave bolt with good connecting effect |
| CN210599799U (en) * | 2019-10-24 | 2020-05-22 | 东莞市跨标不锈钢紧固件有限公司 | Multifunctional anti-loosening screw |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211083A (en) * | 2020-11-10 | 2021-01-12 | 湖南工学院 | Steel-concrete composite beam slab for small bridge and culvert and production method thereof |
| CN116753386A (en) * | 2023-08-18 | 2023-09-15 | 江苏五星波纹管有限公司 | Maintenance-free rotary compensator |
| CN116753386B (en) * | 2023-08-18 | 2023-10-24 | 江苏五星波纹管有限公司 | Maintenance-free rotary compensator |
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| Publication number | Publication date |
|---|---|
| CN111692185B (en) | 2022-04-19 |
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Effective date of registration: 20220325 Address after: 057150 east of Jianshe street, Yongnian Industrial Park, Handan City, Hebei Province, south of Mingjiao line Applicant after: Hebei Tongfa Railway Engineering Group Minghao high speed railway equipment manufacturing Co.,Ltd. Address before: 518000 No. 3688 Nanhai Road, Shenzhen, Guangdong, Nanshan District Applicant before: Ou Yongheng |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A nut that can display pressure values Effective date of registration: 20230410 Granted publication date: 20220419 Pledgee: Xingtai Branch of Industrial Bank Co.,Ltd. Pledgor: Hebei Tongfa Railway Engineering Group Minghao high speed railway equipment manufacturing Co.,Ltd. Registration number: Y2023980037684 |
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