Elastic anti-loose assembly of turnout spacer iron movable joint

Abstract

The utility model relates to the technical field of bolt looseness prevention, in particular to an elastic looseness prevention assembly for a turnout spacer iron movable joint, which is mounted at a rail web of a rail and comprises a double-end stud, a locking nut, a combined pin and an elastic washer, a track heel clamping plate and a nut are arranged on the double-end stud in a penetrating manner, the locking nut is sleeved at the end of the double-end stud, and the combined pin is sleeved at the other end of the double-end stud. The combined pin is inserted into the locking nut and penetrates through the double-end stud, the at least one elastic washer is arranged between the nut and the locking nut, and the elastic washer in an installation state has elastic allowance. The nut is arranged on the locking nut so as to provide an elastic moving space between the nut and the locking nut, and the combination pin is arranged and used for locking the locking nut, so that the locking nut can achieve the anti-falling function, the overhaul period of the turnout is prolonged, and the overhaul workload is reduced.

Description

Technical Field

[0001] This utility model relates to the field of bolt anti-loosening technology, and in particular to an elastic anti-loosening component for a turnout spacer joint. Background Technology

[0002] The railway turnout spacer joint, consisting of double-ended studs, frog clamps, single-layer spring washers, nuts, and cotter pins, works together to achieve structural connection and fastening. Figure 1 Marked area and Figure 2 As shown, because the switch rail needs to be moved before the train passes the switch, the torque of the switch joint bolt is much lower than that of the ordinary joint bolt. The frequent movement of the switch and the vibration of the train make the nut very easy to loosen. The cotter pin has no function of preventing loosening, only preventing it from falling off.

[0003] In routine maintenance, existing technologies often employ measures such as adding lock nuts or using wire to prevent loosening. However, turnout joint bolts require a certain range of elasticity. Adding lock nuts can easily lead to excessive torque, increasing the resistance to turnout operation, and there is no room for elasticity. Bolts that are not tightened require frequent checks and re-tightening. As for using wire, the wire may move outwards from the bolt due to loosening, requiring frequent checks or replacements, which shortens the maintenance cycle and increases the workload. Utility Model Content

[0004] The purpose of this utility model is to provide an elastic anti-loosening component for turnout spacer joints, so as to solve the problem that the nuts of turnout spacer joints are easy to loosen, which leads to increased maintenance workload in the prior art.

[0005] To achieve the above objectives, this utility model provides an elastic anti-loosening component for a turnout spacer joint, which is installed at the rail web. It includes a double-ended stud with a rail clamp and a nut inserted through it, as well as a locking nut, a combination pin, and an elastic washer. The locking nut is sleeved on the end of the double-ended stud, and the combination pin is inserted into the locking nut and penetrates the double-ended stud. At least one elastic washer is placed between the nut and the locking nut, and the elastic washer has elastic allowance in the installed state.

[0006] The present invention, employing the aforementioned solution, improves upon existing technology by adding an elastic washer between the nut and the locking nut. The number of elastic washers can be adjusted as needed, and multiple elastic washers can be stacked in a relative or opposite manner. The elastic washer, with its elastic margin, ensures a tight and elastic connection between the nut and the locking nut. Furthermore, a combination pin is provided, penetrating both the locking nut and the double-ended stud. Compared to conventionally used cotter pins, the combination pin not only provides anti-loosening protection but also secures and prevents loosening.

[0007] The elastic washer extends to both sides with the structural centerline as the bending ridge, and the two ends on both sides of the bending ridge that are far apart adopt a reverse bending design.

[0008] The elastic washer structure is curved from the center to the inner side of the ring, giving the washer a certain degree of elasticity. It is also curved in reverse from the outer side of the ring to increase the contact area with the nut and the locking nut.

[0009] The double-ended stud has a first pin hole at its end, which penetrates the double-ended stud and is adapted to the combination pin.

[0010] The first pin hole is used to fit the combination pin in order to house the combination pin.

[0011] The locking nut is provided with a second pin hole in its circumferential direction, and the second pin holes are provided in pairs.

[0012] The second pin holes are provided in pairs and are aligned with the first pin holes so that the locking nut and the double-ended stud can be fixed together by the combination pin.

[0013] The second pin hole has the same diameter as the first pin hole.

[0014] The second pin hole is aligned with the first pin hole to accommodate the combined pin.

[0015] The locking nut also has internal threads.

[0016] The thread is used to mount the double-ended stud.

[0017] The combination pin includes a pin ring and a pin shaft. The tail of the pin shaft penetrates the locking nut and the double-ended stud. The top of the pin shaft has a ring hole. The pin ring is detachably mounted on the pin shaft.

[0018] The pin is fixedly installed with the locking nut and the double-ended stud, and the pin ring is sleeved on the pin to prevent the pin from coming off. The pin ring is used to restrict the pin and prevent it from coming off.

[0019] Wherein, one end of the pin ring is a deformable end with deformation capability, the deformable end is connected to the ring hole, and the other end of the pin ring is a ring-shaped end with a ring structure, the ring-shaped end is wrapped around the tail end of the pin shaft.

[0020] The deformable end connects to the ring hole, and the deformable end cooperates with the ring-shaped end to limit the locking nut and the stud.

[0021] The pin ring has an elastic arc-shaped structure.

[0022] The ring body of the pin can also be adapted to the structure of the locking nut to facilitate subsequent installation.

[0023] This utility model discloses a turnout spacer joint elastic anti-loosening component. Based on the existing technology, an elastic washer is added between the nut and the locking nut. The elastic washer has a certain elastic margin to provide elastic movement space. A combination pin is also provided to lock the locking nut, so that the locking nut can achieve the function of preventing loosening, thereby extending the turnout maintenance cycle and reducing the maintenance workload. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is an isometric structural diagram of an elastic anti-loosening component for a turnout spacer joint according to this utility model.

[0026] Figure 2 This is an exploded structural diagram of an elastic anti-loosening component for a turnout spacer joint according to this utility model.

[0027] Figure 3 This is an isometric structural diagram of the locking nut of the elastic anti-loosening component of the turnout spacer joint of this utility model.

[0028] Figure 4 This is a schematic diagram of one end of the double-headed stud of the elastic anti-loosening component of the turnout spacer joint of this utility model.

[0029] Figure 5 This is an isometric structural diagram of the combined pin of the elastic anti-loosening component of the turnout spacer joint of this utility model.

[0030] Figure 6 This is an isometric structural diagram of the elastic washer of an elastic anti-loosening component for a turnout spacer joint according to this utility model.

[0031] Figure 7 This is a schematic diagram of the structure of the elastic washer in the elastic anti-loosening component of the turnout spacer joint of this utility model.

[0032] 1. Track and clamp plate; 2. Track; 3. Nut; 4. Double-ended stud; 5. Locking nut; 6. Combination pin; 7. Elastic washer; 8. First pin hole; 9. Second pin hole; 10. Thread; 11. Pin ring; 12. Pin shaft; 13. Ring hole; 14. Deformation end; 15. Ring end. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0034] Please see Figure 1 and Figure 2 This utility model provides an elastic anti-loosening component for a turnout spacer joint, which is installed at the rail web and includes a double-ended stud 4 through which a rail clamp 1 and a nut 3 pass.

[0035] It also includes a locking nut 5, a combination pin 6, and an elastic washer 7. The locking nut 5 is sleeved on the end of the double-ended stud 4. The combination pin 6 is inserted into the locking nut 5 and penetrates the double-ended stud 4. At least one of the elastic washers 7 is placed between the nut 3 and the locking nut 5. The elastic washer 7 has elastic margin in the installed state.

[0036] The track clamp 1 is fixedly installed on the rail web of the track 2 by the double-ended bolt and the nut 3. The elastic washer 7 is fitted between the nut 3 and the locking nut 5. By adjusting the number of elastic washers 7 and tightening or loosening the locking nut 5, the combination pin 6 can be fixedly installed with the locking nut 5 and the double-ended stud 4 to form an elastic anti-loosening sleeve. The track clamp 1, the double-ended stud 4, the nut 3, and the optional single-layer spring washer are proprietary parts of the turnout spacer joint in the prior art. This application adds the elastic washer 7 with an overall structure similar to a W shape. The number of elastic washers 7 is changed according to the number of exposed threads, and they are stacked in the forward or reverse direction. After being tightened and compacted by the locking nut 5, it ensures that the nut 3 and the locking nut 5 are also tightened and have a certain elasticity. The combination pin 6 is added. The combination pin 6 passes through the double-ended bolt and the locking nut 5, which not only provides an anti-loosening function, but also provides a fixing and anti-loosening function.

[0037] Furthermore, the elastic washer 7 extends to both sides with the structural centerline as the bending ridge, and the two ends on both sides of the bending ridge that are far apart from each other adopt a reverse bending design.

[0038] Please see Figure 6 and Figure 7 In this embodiment, the elastic washer 7 has a planar curved shape from its structural center to the inner ring side, giving the washer a certain elasticity, and a planar reverse curved design to the outer ring side to increase the contact surface.

[0039] Furthermore, the end of the double-ended stud 4 is provided with a first pin hole 8, the first pin hole 8 penetrates the double-ended stud 4, and the first pin hole 8 is adapted to the combination pin 6;

[0040] The locking nut 5 has a second pin hole 9 in its circumferential direction. The second pin holes 9 are arranged in pairs. The diameter of the second pin hole 9 is equal to that of the first pin hole 8. The locking nut 5 also has a thread 10 inside.

[0041] Please see Figure 3 and Figure 4 In this embodiment, the diameter of the first pin hole 8 is the same as that of the second pin hole 9, and the length of the first pin hole 8 is greater than that of the second pin hole 9. The locking nut 5 is provided with a thread 10 inside, and the thread 10 has at least three turns of thread to connect with the double-ended stud 4. The second pin hole 9 is opened in pairs along the central axis of the side.

[0042] Furthermore, the combined pin 6 includes a pin ring 11 and a pin shaft 12. The tail of the pin shaft 12 penetrates the locking nut 5 and the double-ended stud 4. The top of the pin shaft 12 has a ring hole 13. The pin ring 11 is detachably mounted on the pin shaft 12.

[0043] Please see Figure 5 The combination pin 6 adopts a combination structure design. The pin shaft 12 is made of a material with high strength and hardness to resist the shearing force transmitted by the elastic washer 7 and increase its service life. The ring hole 13 is set to accommodate the pin ring 11, so that the pin ring 11 can be detachably mounted on the pin shaft 12. After the pin ring 11 is mounted on the pin shaft 12, it fixes the locking nut 5 and prevents the locking nut 5 from being locked.

[0044] Furthermore, one end of the pin ring 11 is a deformable end 14 with deformability, which is connected to the ring hole 13. The other end of the pin ring 11 is a ring-shaped end 15 with a ring structure, which is wrapped around the tail end of the pin shaft 12. The ring body of the pin ring 11 has an elastic arc structure.

[0045] After the deformable end 14 is connected to the ring hole 13, the ring-shaped end 15 is sleeved on the bottom of the pin 12. The ring body of the pin ring 11 has an elastic arc-shaped structure to have a certain binding force to prevent the pin ring 11 from falling off, and at the same time, it can be convenient to install. It can be understood that in this embodiment, the deformable end 14 can be set as a hook-shaped structure to hook with the ring hole 13, or it can be connected to the ring hole 13 in other forms, such as a ring hoop, in which the deformable end 14 is wrapped around the outer edge of the ring hole 13, or a threaded connection, in which the diameter of the deformable end 14 is enlarged and embedded into the ring hole 13 in a threaded connection, etc., so as to make disassembly and assembly more convenient.

[0046] This utility model discloses an elastic anti-loosening component for a turnout spacer joint. Based on the existing technology, an elastic washer 7 is added between the nut 3 and the locking nut 5. The elastic washer 7 has a certain elastic margin to provide elastic movement space. A combination pin 6 is also provided to lock the locking nut 5, so that the locking nut 5 can achieve the function of preventing loosening, thereby extending the turnout maintenance cycle and reducing the maintenance workload.

[0047] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A flexible anti-loosening assembly for a joint of a switch spacer iron, which is installed at a rail waist of a rail (2) and comprises a stud (4) with a rail heel clamping plate (1) and a nut (3), characterized in that it further comprises a locking nut (5), a combined pin (6) and a flexible washer (7), the locking nut (5) is sleeved on an end of the stud (4), the combined pin (6) is inserted into the locking nut (5) and penetrates the stud (4), at least one flexible washer (7) is arranged between the nut (3) and the locking nut (5), and the flexible washer (7) has a flexible allowance in the installed state.

2. The flexible anti-loosening assembly for a joint of a switch spacer iron according to claim 1, characterized in that the flexible washer (7) is curved and extended to both sides with a structural center line as a curved ridge line, and the two end portions on both sides of the curved ridge line are designed to be reversely curved.

3. The flexible anti-loosening assembly for a joint of a switch spacer iron according to claim 1, characterized in that an end of the stud (4) is provided with a first pin hole (8) which penetrates the stud (4) and is adapted to the combined pin (6).

4. The flexible anti-loosening assembly for a joint of a switch spacer iron according to claim 3, characterized in that a circumferential direction of the locking nut (5) is provided with a second pin hole (9), and the second pin hole (9) is arranged in pairs.

5. The flexible anti-loosening assembly for a joint of a switch spacer iron according to claim 4, characterized in that the second pin hole (9) has the same hole diameter as the first pin hole (8).

6. The flexible anti-loosening assembly for a joint of a switch spacer iron according to any one of claims 3-5, characterized in that the inside of the locking nut (5) is further provided with a thread (10).

7. The flexible anti-loosening assembly for a joint of a switch spacer iron according to claim 1, characterized in that the combined pin (6) comprises a pin ring (11) and a pin shaft (12), the tail of the pin shaft (12) penetrates the locking nut (5) and the stud (4), the top of the pin shaft (12) is provided with a ring hole (13), and the pin ring (11) is detachably installed on the pin shaft (12).

8. The flexible anti-loosening assembly for a joint of a switch spacer iron according to claim 7, characterized in that one end of the pin ring (11) is a deformation end (14) with deformation ability, the deformation end (14) is connected with the ring hole (13), and the other end of the pin ring (11) is a ring-shaped end (15), which is hoop-wrapped at the tail end of the pin shaft (12).

9. The flexible anti-loosening assembly for a joint of a switch spacer iron according to any one of claims 7 and 8, characterized in that the ring body of the pin ring (11) is an arc-shaped structure with elasticity. ​ ​ ​ ​ ​ ​ ​ ​ ​

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