CN210715520U - Anti-loosening screw nut assembly - Google Patents
Anti-loosening screw nut assembly Download PDFInfo
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- CN210715520U CN210715520U CN201921714064.2U CN201921714064U CN210715520U CN 210715520 U CN210715520 U CN 210715520U CN 201921714064 U CN201921714064 U CN 201921714064U CN 210715520 U CN210715520 U CN 210715520U
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- nut
- screw
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- screw rod
- lockscrew
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Abstract
The utility model discloses a locking screw nut subassembly belongs to the member connection structure field in the switch conversion equipment, including screw rod, split pin, nut and cup joint on the screw rod and keep off the ring, the screw rod is equipped with the external screw thread and follows the draw-in groove of screw rod axial setting, be equipped with on the nut the internal thread with the external screw thread of screw rod is joined in marriage the dress, keep off be equipped with on the ring with draw-in groove complex boss, the nut passes through split pin fixed connection with keeping off the ring. The utility model discloses a locking screw nut subassembly is screwing up the back with the nut, will keep off ring and nut through the split pin and connect, and when the train passes through the switch, the train wheel pair produced the impact to the switch rail, shows that the pull rod receives the stress of a plurality of directions, because keep off the ring and pass through boss and screw rod draw-in groove cooperation, can effectively prevent adjusting nut pivoted possibility. When the switch is pulled by the conversion equipment, the indication pull rod moves along with the switch rail, the indication pull rod is mainly stressed in the axial direction, and the anti-loosening structure can prevent the indication pull rod from shifting in the axial direction.
Description
Technical Field
The utility model relates to a connection structure field especially relates to the connection structure field in the switch conversion equipment, especially relates to a locking screw nut subassembly.
Background
The existing railway turnout installation device is characterized in that a display pull rod connects turnout conversion equipment and a turnout switch rail together through a tip iron, and a double-nut anti-loosening structure is adopted at a connecting joint of the display pull rod and the tip iron. When the turnout is switched, the pull rod is indicated to be subjected to axial force from the switching equipment; when a train passes through a turnout zone, the impact force of the train wheel pair on the switch rail indicates that the pull rod is stressed in multiple directions, and the double-nut anti-loosening structure can only prevent the shaft sleeve from loosening during rotating towards the right side.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a locking screw nut subassembly, it can overcome the train wheel pair and to the impact of switch rail and switch conversion in-process a plurality of directions to the stress that represents the pull rod and produce, prevent to represent the pull rod drunkenness to reach the reduction and represent the purpose that the trouble, improvement conveying efficiency, assurance are safe.
In order to solve the technical problem, the utility model provides a technical scheme as follows:
on the one hand, the utility model provides a locking screw nut subassembly, include screw rod, split pin, nut and cup joint and keep off the ring on the screw rod, the screw rod is equipped with the external screw thread and follows the draw-in groove that the screw rod axial set up, be equipped with on the nut the internal thread with the external screw thread of screw rod joins in marriage the dress, keep off on the ring be equipped with draw-in groove complex boss, the nut passes through split pin fixed connection with keeping off the ring.
Furthermore, all be equipped with on the disc face of nut and the fender ring and be used for the round hole that the split pin passed, wherein, the round hole quantity of the disc face of nut is a plurality of, round hole quantity is at least one on the fender ring.
Furthermore, the number of the round holes in the disc surface of the nut is at least six, and the round holes are uniformly distributed on the disc surface of the nut.
Furthermore, the circular holes of the disc surface of the nut are symmetrically distributed.
Furthermore, the number of the round holes on the baffle ring is multiple, and the round holes are distributed asymmetrically.
Further, the cotter pin is split at 60-90 degrees.
Further, the nut is connected with the baffle ring in a fitting mode.
Further, the screw rod fixing device further comprises a back nut used for being installed at the end of the screw rod, and the baffle ring is fastened on the screw rod through the back nut.
Furthermore, the elastic cushion is arranged between the back nut and the baffle ring.
Further, still including being used for installing two bullet pads and two back of the body mothers at the screw rod tip, set gradually first bullet pad, first back of the body mother, second bullet pad and second back of the body mother behind the fender ring, will keep off the ring fastening on the screw rod through two back of the body mothers and bullet pads.
After adopting such design, the utility model discloses following advantage has at least:
(1) the utility model discloses a locking screw nut subassembly is screwing up the back with the nut, will keep off ring and nut through the split pin and connect, and when the train passes through the switch, the train wheel pair produced the impact to the switch rail, shows that the pull rod receives the stress of a plurality of directions, because keep off the ring and pass through boss and screw rod draw-in groove cooperation, can effectively prevent adjusting nut pivoted possibility. When the switch is pulled by the conversion equipment, the indication pull rod moves along with the switch rail, the indication pull rod is mainly stressed in the axial direction, and the anti-loosening structure can prevent the indication pull rod from shifting in the axial direction;
(2) the utility model discloses still female through the reinforcement back of the body, form dual anti loosening structure, can not reduce locking effect because of the influence of vibrations, time, environment.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
FIG. 1 is a schematic structural view of one embodiment of a lockscrew nut assembly of the present invention;
fig. 2 is a perspective view of an embodiment of the lockscrew nut assembly of the present invention.
The elastic buffer comprises a screw rod 1, a split pin 2, a baffle ring 3, a nut 4, a first elastic cushion 5, a first back nut 6, a second elastic cushion 7 and a second back nut 8.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The utility model provides an embodiment of locking screw nut subassembly, as shown in fig. 1, fig. 2, including screw rod 1, split pin 2, nut 4 and cup joint on screw rod 1 and keep off ring 3, screw rod 1 is equipped with the external screw thread and follows the draw-in groove 11 of 1 axial settings of screw rod, and the external screw thread that is equipped with internal thread and screw rod on nut 4 joins in marriage the dress, keep off to be equipped with on the ring 3 with draw-in groove 11 complex boss, nut 4 with keep off ring 3 and pass through 2 fixed connection of split pin.
The utility model discloses when using, with the nut back of putting soon, will keep off the boss of ring and correspond with the screw rod draw-in groove and cup joint the screw rod on, make the boss imbed the draw-in groove, make keep off the ring and can effectively prevent adjusting nut pivoted possibility with the screw rod cooperation. When the switch is pulled by the conversion equipment, the indication pull rod moves along with the switch rail, the indication pull rod is mainly stressed in the axial direction, and the anti-loosening structure can prevent the indication pull rod from shifting in the axial direction.
Generally, the nut 4 and the retainer ring 3 are in a snug connection.
As an improvement, the disc surface of the nut 4 and the baffle ring 3 are both provided with round holes for the cotter 2 to pass through, wherein the number of the round holes of the disc surface of the nut 4 is a plurality, and the number of the round holes on the baffle ring 3 is at least one. Through set up a plurality of round holes on the nut, through the proper nut of screwing up, just can make one of them round hole align with the round hole of retaining ring to more convenient pass the split pin and fix, split pin 2 generally splits 60 ~ 90.
Further, the number of the circular holes of the disk surface of the nut 4 may be at least three, four, five, six, seven, eight or more, preferably more than six, and the circular holes are uniformly distributed on the disk surface of the nut 4. Certain round hole quantity, can be more convenient with keep off the round hole of ring and align, keep off the round hole of ring and be one at least, also can be for two, three or more, asymmetric distribution is good when a plurality of, also can be symmetrical structure, and the round hole on the nut uses symmetric distribution to be good.
In order to reinforce the anti-loosening effect, the screw rod locking device further comprises a back nut (6 or 8) used for being installed at the end of the screw rod 1, and the baffle ring 3 is fastened on the screw rod 1 through the back nut (6 or 8). An elastic pad 5 can also be arranged between the back nut 6 and the baffle ring 3.
The preferred scheme is that two elastic cushions and two back nuts are arranged at the end part of the screw rod 1, a first elastic cushion 5, a first back nut 6, a second elastic cushion 7 and a second back nut 8 are arranged behind the baffle ring 3 in sequence, and the baffle ring 3 is fastened on the screw rod 1 through the two back nuts and the elastic cushions.
The utility model discloses when using, including trough of belt screw 1, split pin 2, fender ring 3, adjusting nut 4, bullet pad 5, the female 6 constitutions of back of the body, be provided with the external screw thread on the trough of belt screw 1 and be equipped with the draw-in groove, keep off and be provided with on the ring 3 with draw-in groove complex boss, keep off and be provided with a plurality of round holes on the ring 3, be provided with on the adjusting nut 4 with 1 external screw-thread fit's of trough of belt screw internal thread, adjusting nut 4 disc face department is provided with a plurality of round holes. Adjusting nut 4 and trough of belt screw 1 are through interior external screw thread fit, keep off boss embedding trough of belt screw 1's on the ring 3 draw-in groove in, laminate adjusting nut 4's disc face and fender ring 3 mutually, split 2 passes the round hole that both align to split 60 ~ 90 with split 2, trough of belt screw 1 tip adopts two back of the body female 6 and bullet pad 5 will keep off the ring fastening at trough of belt screw 1.
The utility model discloses a screw rod anti loosening structure-lock nut screw rod subassembly for switch conversion equipment's expression mechanism can overcome the impact of train wheel pair to the tongue and switch conversion in-process a plurality of directions to the stress that the expression pull rod produced, prevents to express the pull rod drunkenness to reach the purpose that reduces the expression trouble, improve conveying efficiency, guarantee safety.
The utility model discloses a locking screw nut subassembly is screwing up the back with the nut, will keep off ring and nut through the split pin and connect, and when the train passes through the switch, the train wheel pair produced the impact to the switch rail, shows that the pull rod receives the stress of a plurality of directions, because keep off the ring and pass through boss and screw rod draw-in groove cooperation, can effectively prevent adjusting nut pivoted possibility. When the switch is pulled by the conversion equipment, the indication pull rod moves along with the switch rail, the indication pull rod is mainly stressed in the axial direction, and the anti-loosening structure can prevent the indication pull rod from shifting in the axial direction; the utility model discloses still female through the reinforcement back of the body, form dual anti loosening structure, can not reduce locking effect because of the influence of vibrations, time, environment.
The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.
Claims (10)
1. The anti-loosening screw and nut assembly is characterized by comprising a screw, a split pin, a nut and a baffle ring sleeved on the screw, wherein the screw is provided with external threads and a clamping groove arranged along the axial direction of the screw, the nut is provided with internal threads which are matched with the external threads of the screw, the baffle ring is provided with a boss matched with the clamping groove, and the nut and the baffle ring are fixedly connected through the split pin.
2. The lockscrew nut assembly of claim 1, wherein the circular disk surface of the nut and the baffle ring are provided with a plurality of circular holes for the cotter to pass through, and the number of the circular holes on the circular disk surface of the nut is at least one.
3. A lockscrew nut assembly as claimed in claim 2, wherein the circular bore of the nut disc surface is at least six in number and evenly distributed over the nut disc surface.
4. A lockscrew nut assembly as defined in claim 2, wherein the circular holes of the disc surface of the nut are symmetrically distributed.
5. The lockscrew nut assembly of claim 2 wherein the number of circular holes on the retainer ring is plural and is asymmetrically distributed.
6. A lockscrew nut assembly as defined in claim 1, wherein said cotter pin is split between 60 ° and 90 °.
7. The lockscrew nut assembly of any one of claims 1 to 6 wherein the nut is in abutting engagement with the retainer ring.
8. A lockscrew nut assembly as claimed in any one of claims 1 to 6 further including a back nut for mounting on the end of the screw by which the retainer ring is secured to the screw.
9. The lockscrew nut assembly of claim 8 further comprising a spring washer disposed between the back nut and the retainer ring.
10. The anti-loose screw nut assembly according to any one of claims 1 to 6, further comprising two elastic pads and two back nuts for being mounted on the end of the screw, wherein the first elastic pad, the first back nut, the second elastic pad and the second back nut are sequentially arranged behind the retainer ring, and the retainer ring is fastened on the screw through the two back nuts and the elastic pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921714064.2U CN210715520U (en) | 2019-10-14 | 2019-10-14 | Anti-loosening screw nut assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921714064.2U CN210715520U (en) | 2019-10-14 | 2019-10-14 | Anti-loosening screw nut assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210715520U true CN210715520U (en) | 2020-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921714064.2U Active CN210715520U (en) | 2019-10-14 | 2019-10-14 | Anti-loosening screw nut assembly |
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| CN (1) | CN210715520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594272A (en) * | 2019-10-14 | 2019-12-20 | 太原市京丰铁路电务器材制造有限公司 | Anti-loosening screw nut assembly |
-
2019
- 2019-10-14 CN CN201921714064.2U patent/CN210715520U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594272A (en) * | 2019-10-14 | 2019-12-20 | 太原市京丰铁路电务器材制造有限公司 | Anti-loosening screw nut assembly |
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