CN112833082B - Locking track bolt that moves - Google Patents
Locking track bolt that moves Download PDFInfo
- Publication number
- CN112833082B CN112833082B CN202011526013.4A CN202011526013A CN112833082B CN 112833082 B CN112833082 B CN 112833082B CN 202011526013 A CN202011526013 A CN 202011526013A CN 112833082 B CN112833082 B CN 112833082B
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- China
- Prior art keywords
- nut
- bolt
- annular array
- groove
- elastic plate
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- 230000000670 limiting effect Effects 0.000 claims description 8
- 239000007769 metal material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000003491 array Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 241001669679 Eleotris Species 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/284—Locking by means of elastic deformation
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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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model provides an anti-loosening track bolt, relates to TBM engineering technical field, including the screw bolt and the nut of mutually supporting, the nut seal the open cavity structure of the other end for one end, be equipped with the internal thread at the inner wall surface of nut, be equipped with the external screw thread in the pole portion of bolt, internal thread and external screw thread match, still be equipped with integrated into one piece's inserted bar along the axial at the internal surface middle part of the blind end of nut, the tip of pole portion still be equipped with the recess along the axial, inserted bar and recess between be equipped with stop gear, the nut screw when pole portion, through stop gear restriction nut is rotatory. The invention can effectively overcome the defect that the track bolt is loosened due to the vibration of the battery car wheel, so that the track bolt can be stably locked for a long time.
Description
Technical Field
The invention relates to the technical field of TBM engineering, in particular to an anti-loosening track bolt.
Background
A lot of track bolts need be used in the rail construction in TBM tunnel, and in order to make the track remain stable, the track bolt must prevent to become flexible, and current track bolt locking effect is not good, all need consume a large amount of manpower and materials annually and tours and change not hard up track bolt.
The existing patent documents disclose some track bolts capable of preventing looseness, and the principle of the track bolts is that a damping rubber layer is mostly added between a nut and a bolt, so that the bolt can be prevented from loosening after being screwed, however, along with the aging and deterioration of the rubber layer, the looseness-preventing effect can be obviously reduced, and the bolt can still loosen after a long time. And if the track bolt is not found in time after loosening, the running accident of the battery car is easy to happen.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an anti-loosening track bolt.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides an anti-loosening track bolt, is including the bolt and the nut of mutually supporting, the nut be one end and seal the open cavity structure of the other end, be equipped with the internal thread at the inner wall surface of nut, be equipped with the external screw thread in the pole portion of bolt, internal thread and external screw thread match, still be equipped with integrated into one piece's inserted bar along the axial at the internal surface middle part of the blind end of nut, the tip of pole portion still be equipped with the recess along the axial, inserted bar and recess between be equipped with stop gear, the nut screw when on pole portion, through stop gear restriction nut is rotatory.
Preferably, the limiting mechanism comprises a triangular rib annular array which surrounds the axis of the groove along the spiral direction, is integrally formed with the inner wall of the groove and has an inclined cross section, and an inclined elastic plate annular array which is arranged on the surface of the outer wall of the inserted rod, surrounds the axis of the inserted rod along the spiral direction and is matched with the long edge of the inclined triangle, wherein the inclined elastic plate annular array can be pushed into the groove when the nut rotates.
Preferably, the bolt be high strength bolt, including integrated into one piece's pole cap and pole portion in proper order, pole portion include polished rod section, screw thread section.
Preferably, the nut is in threaded connection with the threaded section, and the length of the insertion rod is greater than that of the inner cavity of the nut.
Preferably, the annular array of slanted spring plates is made of a resilient metal material.
Preferably, when the nut is screwed in the thread section, the long inclined plane a of the annular array of the inclined elastic plates and the long inclined plane B of the annular array of the convex ribs are matched with each other, and under the extrusion of the long inclined plane B, the annular array of the inclined elastic plates is pressed to deform and allow the inserted rod to rotate and advance in the groove.
Preferably, when the nut stops screwing in on the thread section, the short inclined plane A of the annular array of the inclined elastic plate and the short inclined plane B of the annular array of the convex ribs are matched with each other, and the nut is limited to rotate towards the withdrawing direction.
Preferably, the elastic force of the elastic metal material is enough to overcome the rotating force of the nut towards the withdrawing direction caused by the vibration of the wheels of the electromobile.
The invention has the beneficial effects that:
the invention can effectively overcome the defect that the track bolt is loosened due to the vibration of the battery car wheel, so that the track bolt can be stably locked for a long time.
Drawings
FIG. 1: the front view of the present invention;
FIG. 2: a cross-sectional view of the present invention;
FIG. 3: cross-sectional view at A-A1 of the present invention;
1: nut, 2: screw, 1-1: nut wall, 1-2: closed end, 1-3: inserted link, 1-4: inclined elastic plate annular array, 1-5: long inclined plane A,1-6: short bevel A,2-1: rod cap, 2-2: polished rod segment, 2-3: thread section, 2-4: external thread, 2-5: groove, 2-6: annular array of ridges, 2-7: long inclined plane B,2-8: short bevel B.
Detailed Description
In the following, embodiments of the present invention are described in detail in a stepwise manner, which is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only used for 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 and a specific orientation configuration and operation, and thus, the present invention is not to be construed as being limited thereto.
As shown in fig. 1 to 3:
a locking track bolt comprises a bolt 2 and a nut 1 which are matched with each other, wherein the nut 1 is of a cavity structure with one end closed and the other end open, an internal thread is arranged on the surface of the inner wall of the nut 1, an external thread 2-4 is arranged on the rod part of the bolt 2, the internal thread is matched with the external thread 2-4, an integrally formed inserted rod 1-3 is further axially arranged in the middle of the inner surface of the closed end 1-2 of the nut 1, a groove 2-5 is further axially arranged at the end part of the rod part, a limiting mechanism is arranged between the inserted rod 1-3 and the groove 2-5, and when the nut 1 is screwed on the rod part, the rotation of the nut is limited through the limiting mechanism;
the limiting mechanism comprises a triangular rib annular array 2-6 which surrounds the axis of the groove 2-5 along the spiral direction, is integrally formed with the inner wall of the groove 2-5 and has an inclined cross section, and an inclined elastic plate annular array 1-4 which is arranged on the outer wall surface of the inserted bar 1-3, surrounds the axis of the inserted bar 1-3 along the spiral direction and is matched with the long edge of the inclined triangle for use, wherein the inclined elastic plate annular array 1-4 can be pushed into the groove 2-5 when the nut 1 rotates;
the bolt is a high-strength bolt and comprises a rod cap 2-1 and a rod part which are integrally formed in sequence, wherein the rod part comprises a polished rod section 2-2 and a threaded section 2-3;
the nut 1 is in threaded connection with the threaded section 2-3, and the length of the inserted link 1-3 is greater than that of the inner cavity of the nut 1;
the inclined elastic plate annular array 1-4 is made of elastic metal materials;
when the nut 1 is screwed in on the thread section 2-3, the long inclined plane A1-5 of the inclined elastic plate annular array 1-4 is matched with the long inclined plane B2-7 of the rib annular array 2-6, and under the extrusion of the long inclined plane B2-7, the inclined elastic plate annular array 1-4 is pressed to deform and allow the inserted link 1-3 to rotate and advance in the groove 2-5;
when the nut 1 stops screwing in on the thread section 2-3, the short inclined planes A1-6 of the inclined elastic plate annular arrays 1-4 are matched with the short inclined planes B2-8 of the rib annular arrays 2-6, and the nut 1 is limited to rotate towards the withdrawing direction;
the elasticity of the elastic metal material is enough to overcome the rotating force of the nut in the withdrawing direction caused by the vibration of the wheels of the electromobile.
The use principle of the invention is as follows:
1. if the nut of the invention needs to be embedded in a sleeper, a thread-shaped anti-loosening structure can be arranged on the outer wall surface of the nut (if the nut is used in other occasions of a railway, the thread-shaped anti-loosening structure does not need to be arranged on the outer wall surface of the nut), so that the nut and the sleeper are firmly connected; on the basis, a groove at the bottom end of the bolt is aligned to an insert rod, the inclined elastic plate annular arrays 1-4 are aligned to gaps of the convex rib annular arrays 2-6 through adjustment, the insert rod is inserted, when internal threads of the nut are in contact with external threads of the screw rod, the screw rod is rotated to lock the nut, and after the nut is locked, the bolt cannot rotate due to the limiting effect of the inclined elastic plate annular arrays 1-4 and cannot overcome the threaded structures of the bolt and the nut to be pulled out, so that the bolt is locked stably for a long time;
2. the elastic plate annular array 1-4 of the invention is composed of a plurality of inclined elastic metal plates, as shown in figure 3, compared with the anti-skid rubber pads arranged on the contact surfaces of the bolts and the nuts, the invention can achieve more stable effect, because even if the elastic metal plates are damaged individually, the limit function of other elastic metal plates can not be hindered, and the elastic metal plates are firmer and more durable than the anti-skid rubber pads, and simultaneously have the capability of overcoming the rotation of the nuts in the withdrawing direction caused by the vibration of the rail, thereby ensuring the long-term use of the invention without loosening.
Claims (6)
1. A locking track bolt characterized by: the nut is of a cavity structure with one closed end and the other open end, an internal thread is arranged on the surface of the inner wall of the nut, an external thread is arranged on the rod part of the bolt, the internal thread is matched with the external thread, an integrally formed inserted rod is further axially arranged in the middle of the inner surface of the closed end of the nut, a groove is further axially arranged at the end part of the rod part, a limiting mechanism is arranged between the inserted rod and the groove, and when the nut is screwed on the rod part, the nut is limited to rotate through the limiting mechanism;
the limiting mechanism comprises a triangular rib annular array which surrounds the axis of the groove along the spiral direction, is integrally formed with the inner wall of the groove and has an inclined cross section, and an inclined elastic plate annular array which is arranged on the surface of the outer wall of the inserted rod, surrounds the axis of the inserted rod along the spiral direction and is matched with the long edge of the inclined triangle for use, wherein the inclined elastic plate annular array can be pushed into the groove when the nut rotates;
when the nut stops screwing in the thread section, the short inclined plane A of the inclined elastic plate annular array is matched with the short inclined plane B of the convex rib annular array, and the nut is limited to rotate towards the withdrawing direction;
the bolt and the nut are mutually matched, and the anti-loosening effect is achieved under the condition that no third-party component participates.
2. A locking track bolt as defined in claim 1 wherein: the bolt be high strength bolt, including integrated into one piece's pole cap and pole portion in proper order, pole portion include polished rod section, screw thread section.
3. A locking track bolt as defined in claim 2 wherein: the nut is in threaded connection with the threaded section, and the length of the inserting rod is larger than that of the inner cavity of the nut.
4. A locking track bolt as claimed in any one of claims 1 to 3, characterised in that: the inclined elastic plate annular array is made of elastic metal materials.
5. A locking track bolt as claimed in any one of claims 1 to 3, characterised in that: when the nut is screwed in on the thread section, the long inclined plane A of the annular array of the inclined elastic plate is matched with the long inclined plane B of the annular array of the convex edges, and under the extrusion of the long inclined plane B, the annular array of the inclined elastic plate is pressed and deformed, and the inserted rod is allowed to rotate and advance in the groove.
6. A locking track bolt as defined in claim 4 wherein: the elasticity of the elastic metal material is enough to overcome the rotating force of the nut in the withdrawing direction caused by the vibration of the wheels of the electromobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011526013.4A CN112833082B (en) | 2020-12-22 | 2020-12-22 | Locking track bolt that moves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011526013.4A CN112833082B (en) | 2020-12-22 | 2020-12-22 | Locking track bolt that moves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112833082A CN112833082A (en) | 2021-05-25 |
| CN112833082B true CN112833082B (en) | 2023-01-31 |
Family
ID=75923757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011526013.4A Active CN112833082B (en) | 2020-12-22 | 2020-12-22 | Locking track bolt that moves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112833082B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700721B (en) * | 2021-09-14 | 2023-04-07 | 赵小兵 | Anti-loose self-tapping screw |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1588221A (en) * | 1977-06-30 | 1981-04-15 | Jones E J R | Screw threaded fastening devices |
| CN102242756B (en) * | 2011-05-27 | 2013-04-24 | 齐齐哈尔轨道交通装备有限责任公司 | Fastening device |
| CN204677573U (en) * | 2015-02-01 | 2015-09-30 | 刘兴丹 | Combination chek bolt |
| CN206918008U (en) * | 2017-06-13 | 2018-01-23 | 宁波群力紧固件制造有限公司 | A kind of check bolt |
| CN107701565A (en) * | 2017-11-20 | 2018-02-16 | 长沙翼希网络科技有限公司 | Fastening bolt |
| CN207864393U (en) * | 2018-02-12 | 2018-09-14 | 三峡大学 | A kind of Anti-loose bolt sleeve |
| CN208686781U (en) * | 2018-08-13 | 2019-04-02 | 宁德时代新能源科技股份有限公司 | A kind of fixed device of checknut |
| CN210859519U (en) * | 2019-11-04 | 2020-06-26 | 张振华 | Anti-theft anti-loosening bolt assembly |
-
2020
- 2020-12-22 CN CN202011526013.4A patent/CN112833082B/en active Active
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| Publication number | Publication date |
|---|---|
| CN112833082A (en) | 2021-05-25 |
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