A fastening mechanism for train track bolts

Abstract

The present invention discloses a bolt fastening mechanism for train tracks, which includes a plurality of sleepers. Grooves are provided at the top on both sides of the sleepers. Rail stress plates are placed in the grooves of the sleepers, and a steel track is fixedly connected to the top of the rail stress plates. For this bolt fastening mechanism for train tracks, the pull piece drives the lock to move downward, so that the lock is sleeved on the positioning tube. Then, by rotating the adjusting rod and using the principle of screw propulsion, the horizontal displacement of the steel sliding push plate is driven, that is, the locks on both sides of the steel track are pulled outward to form a tight state, ensuring greater stability on both sides of the steel track. And through the height displacement difference of the inclined surface groove at the bottom of the steel sliding push plate, the contact extrusion height between the steel roller and the steel sliding push plate is changed. That is, by making the adjustable extrusion contact block located in the groove of the positioning plate, a part of the rail stress plate has space for displacement adjustment to ensure that the steel track is more accurately and stably fixed on the sleeper.

Description

Technical Field

[0001] The present invention relates to the technical field of train track bolt fastening, and specifically to a train track bolt fastening mechanism. Background Art

[0002] As an important part of the railway line, the track is an integral engineering structure, which consists of main components such as rails, sleepers, connecting parts, ballast, anti-creeper devices and switches. The track usually consists of two parallel rails, which are fixed on the sleepers. Under the sleepers is the ballast. The connecting parts play a connecting role between the rails and between the rails and the sleepers. The main line tracks in China are divided into five types: extra-heavy, heavy, sub-heavy, medium and light. Among them, the sleepers are laid between the ballast and the rails to bear the force and vibration transmitted from the rails and transmit them to the ballast; at the same time, they are used to maintain the gauge and direction of the rails. Such track components are called sleepers. In addition to transmitting the force and vibration from the rails to the ballast, the sleepers themselves can also absorb part of the vibration energy. The number of sleepers laid per kilometer of railway line is determined according to factors such as the running speed and transportation volume of locomotives and vehicles on the line. The number of sleepers laid is more on the lines with high running speed and large transportation volume of locomotives and vehicles. Generally, about 1,840 sleepers are laid per kilometer on the straight railway lines in China. At present, the connection between the sleepers and the rails in China is generally through the threaded connection of U-shaped bolts and screw rods to position and support the rails. However, due to the long-term loosening of the screw rods caused by the vibration of the train running, in order to prevent the derailment of the train track, a large number of workers are used to beat and detect the screw rods for a long time. Among them, for some tracks, due to the loosening of the screw rods, there will be small displacement deviations between the rails and the sleepers, which gradually become larger. At this time, workers need to manually reinforce the screw rods through fastening equipment. The existing U-shaped bolts on the sleepers only squeeze and position the rails from top to bottom, and there is no targeted front-back positioning constraint force on the rails. It completely relies on the squeezing friction force of the U-shaped bolts for restraint. When there is a small deviation between the rails and the sleepers, the entire set of bolt fasteners needs to be completely removed, which is extremely troublesome to operate and brings certain troubles to railway employees. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the present invention provides a train track bolt fastening mechanism, which solves the problem that the existing U-shaped bolts on the sleepers only squeeze and position the rails from top to bottom, and there is no targeted front-back positioning constraint force on the rails. It completely relies on the squeezing friction force of the U-shaped bolts for restraint. When there is a small deviation between the rails and the sleepers, the entire set of bolt fasteners needs to be completely removed.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the present invention provides the following technical solution: A train rail bolt fastening mechanism, including a plurality of sleepers, grooves are provided at the top of both sides of the sleepers, a rail stress plate is placed in the grooves of the sleepers, a steel rail is fixedly connected to the top of the rail stress plate, positioning plates are fixedly connected to both sides of the rail stress plate, a clamping groove is provided at the top of the positioning plate, an extrusion contact block is placed in the clamping groove of the positioning plate by extrusion, a stress steel pipe is fixedly connected to the top of the extrusion contact block, a positioning sleeve is slidably sleeved on the surface of the stress steel pipe, a stress rod is fixedly connected to the side of the positioning sleeve, a clamping stability block is fixedly connected to the side of the stress rod away from the positioning sleeve, the bottom of the clamping stability block is in extrusion contact with the bottom of the groove of the sleeper, four screw rods penetrate through the top of the clamping stability block, and the four screw rods are symmetrically distributed in the front, back, left and right with the center of the clamping stability block as the center. The surface of the screw rod is threadedly connected to the inner wall of the clamping stability block, the bottom of the screw rod is inserted into the interior of the sleeper, and the lower surface of the screw rod is threadedly connected to the inner wall of the sleeper. A connecting piece is fixedly connected to the top of the clamping stability block, a steel sliding push plate slidably penetrates through the side of the connecting piece, an inclined surface chute is provided at the bottom of the steel sliding push plate, the surface of the steel sliding push plate is slidably connected to the inner wall of the connecting piece, a pulling piece is fixedly connected to the side of the steel sliding push plate, and the other end of the pulling piece is fixedly connected to the side of the lock. An installation block is fixedly connected to the top of the stress steel pipe, a steel roller is movably installed in the middle of the installation block, the upper surface of the steel roller is located in the inclined surface chute provided at the bottom of the steel sliding push plate and is in extrusion contact with the inclined surface in the inner cavity of the steel sliding push plate at the top. The inner ring of the lock is movably sleeved on the surface of the positioning pipe, the bottom of the positioning pipe is fixedly connected to the top of the rail stress plate, an adjusting rod penetrates through the side of the connecting piece, a thread groove is provided on the surface of the adjusting rod, the surface of the adjusting rod is threadedly connected to the inner wall of the connecting piece, the surface of the adjusting rod is fixedly connected to the inner wall of the inner ring of the bearing sleeve, and a driving block is fixedly connected to the bottom of the outer ring of the bearing sleeve. The bottom of the driving block is fixedly connected to the top of the steel sliding push plate.

[0007] Preferably, a pressure-resistant sleeve ring is fixedly sleeved on the surface of the stress steel pipe, a compression spring is fixedly connected to the bottom of the pressure-resistant sleeve ring, the inner ring of the compression spring is sleeved on the surface of the stress steel pipe, and the bottom of the compression spring is fixedly connected to the top of the positioning sleeve.

[0008] Preferably, a reinforcement sleeve is slidably sleeved on the surface of the steel sliding push plate, and the side of the reinforcement sleeve is fixedly connected to the side of the connecting piece.

[0009] Preferably, a stabilizing sleeve is fixedly sleeved on the surface of the positioning pipe, and the bottom of the stabilizing sleeve is fixedly connected to the top of the rail stress plate.

[0010] Preferably, a semi-circular protective elastic tube is fixedly connected to the inner wall of the buckle, and the inner wall of the semi-circular protective elastic tube is in pressing contact with the surface of the positioning tube.

[0011] Preferably, a limiting plate is fixedly connected to one end of the adjusting rod, and a rotating nut is fixedly connected to the other end of the adjusting rod.

[0012] Preferably, a stable resistance backing plate is fixedly connected to the side of the clamping stable block away from the rail stress plate, and the side surface of the stable resistance backing plate is in pressing contact with the side wall of the sleeper groove.

[0013] (III) Beneficial effects

[0014] The present invention provides a fastening mechanism for train track bolts. It has the following beneficial effects:

[0015] (1) For this fastening mechanism for train track bolts, through the setting of the clamping stable block and the combined use of the screw rod, connecting piece, steel sliding push plate and pulling piece, it plays a role in positioning and fixing the clamping stable block from top to bottom through the threaded connection between the screw rod and the sleeper. Then, the buckle is driven to move downward by the pulling piece, and when the clamping stable block is completely fixed on the top of the sleeper, the buckle is sleeved on the positioning tube. Then, by rotating the adjusting rod and using the principle of screw propulsion, the horizontal displacement of the steel sliding push plate is driven, that is, the buckles on both sides of the steel track are pulled outward to form a tight state, ensuring greater stability on both sides of the steel track and specifically restricting the forward and backward displacement of the steel track, thus achieving the effect of strengthening the stability of the steel track.

[0016] (2) For this fastening mechanism for train track bolts, through the setting of the positioning plate and the combined use of the extrusion contact block, stress steel pipe, positioning sleeve, stress rod, clamping stable block, pressing sleeve ring, compression spring, mounting block and steel rollers, it plays a role that when the adjusting rod rotates and drives the horizontal displacement of the steel sliding push plate, that is, through the height difference of the inclined groove at the bottom of the steel sliding push plate, the contact and extrusion height between the steel roller and the steel sliding push plate is changed. That is, the extrusion contact block is driven to move downward by the stress steel pipe, so that the extrusion contact block is located in the groove of the positioning plate to press and position the rail stress plate. On the contrary, when it is necessary to slightly adjust the rail stress plate to change the position of the steel track, that is, through the horizontal displacement of the steel sliding push plate, the extrusion contact block moves upward and no longer restricts the rail stress plate, so that the rail stress plate has a part of displacement adjustment space, facilitating railway employees to quickly adjust the connection position between the rail stress plate and the sleeper to ensure that the steel track is more accurately and stably fixed on the sleeper. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the structure of the present invention;

[0018] Figure 2 Schematic enlarged view of part A of the structure of the present invention Figure 1 ;

[0019] Figure 3 Schematic enlarged view of part B of the structure of the present invention Figure 2 ;

[0020] Figure 4 Schematic enlarged view of part C of the structure of the present invention Figure 3 ;

[0021] Figure 5 Schematic enlarged view of part D of the structure of the present invention Figure 3 ;

[0022] Figure 6 Schematic enlarged view of part E of the structure of the present invention Figure 3 ;

[0023] In the figure: 1, sleeper; 2, rail stress plate; 3, steel track; 4, positioning plate; 5, extrusion contact block; 6, stress steel pipe; 7, positioning sleeve; 8, stress rod; 9, clamping and stabilizing block; 10, screw; 11, stable resistance backing plate; 12, connecting piece; 13, steel sliding push plate; 14, pulling piece; 15, pressing collar; 16, compression spring; 17, mounting block; 18, steel roller; 19, reinforcement sleeve; 20, lock; 21, positioning pipe; 22, semi-circular protective elastic pipe; 23, stabilizing sleeve; 24, adjusting rod; 25, bearing sleeve; 26, driving block; 27, limiting plate; 28, rotating nut. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Such as Figures 1-6As shown in the figure, the present invention provides a technical solution: a train rail bolt fastening mechanism, including a plurality of sleepers 1. Grooves are provided at the top of both sides of the sleeper 1. A rail stress plate 2 is placed in the groove of the sleeper 1. A steel rail 3 is fixedly connected to the top of the rail stress plate 2. Positioning plates 4 are fixedly connected to both sides of the rail stress plate 2. A clamping groove is provided at the top of the positioning plate 4. An extrusion contact block 5 is extruded and placed in the clamping groove of the positioning plate 4. A stress steel pipe 6 is fixedly connected to the top of the extrusion contact block 5. A positioning sleeve 7 is slidably sleeved on the surface of the stress steel pipe 6. A stress rod 8 is fixedly connected to the side of the positioning sleeve 7. A clamping stability block 9 is fixedly connected to the side of the stress rod 8 away from the positioning sleeve 7. The bottom of the clamping stability block 9 is in extrusion contact with the bottom of the groove of the sleeper 1. Four screw rods 10 penetrate through the top of the clamping stability block 9. The four screw rods 10 are symmetrically distributed in the front, back, left, and right around the center of the clamping stability block 9. The surface of the screw rod 10 is threadedly connected to the inner wall of the clamping stability block 9. The bottom of the screw rod 10 is inserted into the interior of the sleeper 1. The lower surface of the screw rod 10 is threadedly connected to the inner wall of the sleeper 1. A stable resistance backing plate 11 is fixedly connected to the side of the clamping stability block 9 away from the rail stress plate 2. The side of the stable resistance backing plate 11 is in extrusion contact with the side wall of the groove of the sleeper 1. Through the setting of the stable resistance backing plate 11, the stability of the clamping stability block 9 is enhanced. A connecting piece 12 is fixedly connected to the top of the clamping stability block 9. A steel sliding push plate 13 slidably penetrates through the side of the connecting piece 12. A reinforcing sleeve 19 is slidably sleeved on the surface of the steel sliding push plate 13. The side of the reinforcing sleeve 19 is fixedly connected to the side of the connecting piece 12. Through the setting of the reinforcing sleeve 19, the connection strength between the steel sliding push plate 13 and the connecting piece 12 is enhanced. An inclined surface chute is provided at the bottom of the steel sliding push plate 13. The surface of the steel sliding push plate 13 is slidably connected to the inner wall of the connecting piece 12. A pulling piece 14 is fixedly connected to the side of the steel sliding push plate 13. The other end of the pulling piece 14 is fixedly connected to the side of the lock 20. A pressing collar 15 is fixedly sleeved on the surface of the stress steel pipe 6. A compression spring 16 is fixedly connected to the bottom of the pressing collar 15. The inner ring of the compression spring 16 is sleeved on the surface of the stress steel pipe 6. The bottom of the compression spring 16 is fixedly connected to the top of the positioning sleeve 7. Through the setting of the compression spring 16 and the pressing collar 15, when the stress steel pipe 6 has spatial displacement, it continuously bounces upward. An installation block 17 is fixedly connected to the top of the stress steel pipe 6. A steel roller 18 is movably installed in the middle of the installation block 17. The upper surface of the steel roller 18 is located in the inclined surface chute provided at the bottom of the steel sliding push plate 13 and is in extrusion contact with the inclined surface in the inner cavity of the steel sliding push plate 13 at the top. The inner ring of the lock 20 is movably sleeved on the surface of the positioning pipe 21. The bottom of the positioning pipe 21 is fixedly connected to the top of the rail stress plate 2. A stabilizing sleeve 23 is fixedly sleeved on the surface of the positioning pipe 21. The bottom of the stabilizing sleeve 23 is fixedly connected to the top of the rail stress plate 2. Through the setting of the stabilizing sleeve 23,Thus, the stability of the positioning tube 21 is enhanced. A semi-circular protective elastic tube 22 is fixedly connected to the inner wall of the lock 20. The inner wall of the semi-circular protective elastic tube 22 is in extrusion contact with the surface of the positioning tube 21. Through the setting of the semi-circular protective elastic tube 22, the lock 20 is protected. An adjusting rod 24 penetrates through the side of the connecting member 12. Thread grooves are formed on the surface of the adjusting rod 24. The surface of the adjusting rod 24 is threadedly connected to the inner wall of the connecting member 12. The surface of the adjusting rod 24 is fixedly connected to the inner wall of the inner ring of the bearing sleeve 25. The bottom of the outer ring of the bearing sleeve 25 is fixedly connected to a driving block 26. The bottom of the driving block 26 is fixedly connected to the top of the steel sliding push plate 13. One end of the adjusting rod 24 is fixedly connected to a limiting plate 27. Through the setting of the limiting plate 27, the displacement of the adjusting rod 24 is restricted. The other end of the adjusting rod 24 is fixedly connected to a rotating nut 28. Through the setting of the rotating nut 28, it is convenient to rotate the adjusting rod 24.,

[0026] During use, when it is necessary to position and fix the sleeper 1 and the steel track 3, first place and fixedly connect the clamping and stabilizing blocks 9 on both sides of the steel track 3, and threadedly connect the clamping and stabilizing blocks 9 and the sleeper 1 through the threaded connection of the screw 10. At the same time, when the clamping and stabilizing blocks 9 are displaced downward for positioning and fixing, the lock 20 is driven to displace downward through the pulling member 14. When the clamping and stabilizing blocks 9 are completely fixed on the top of the sleeper 1, the lock 20 is sleeved on the positioning tube 21. Then, rotate the rotating nut 28 to drive the adjusting rod 24 to rotate. Using the rotation and propulsion principle of the adjusting rod 24, the steel sliding push plate 13 is driven to displace outward through the bearing sleeve 25, that is, the locks 20 on both sides of the steel track 3 are pulled outward to form a tight state, ensuring greater stability on both sides of the steel track 3 and restricting the forward and backward displacement of the steel track 3. Thus, the purpose of enhancing the stability of the steel track 3 is achieved. At the same time, when the steel track 3 is horizontally displaced outward, due to the height displacement difference of the inclined groove at the bottom of the steel sliding push plate 13, the contact and extrusion height between the steel roller 18 and the steel sliding push plate 13 is changed, that is, the force-bearing steel pipe 6 drives the extrusion contact block 5 to displace downward, so that the extrusion contact block 5 is located in the groove of the positioning plate 4, and the railway track stress plate 2 is extruded and positioned and fixed. On the contrary, when it is necessary to adjust the railway track stress plate 2 and the sleeper 1 back to the accurate range of positions, that is, by reversely rotating the rotating nut 28, the steel sliding push plate 13 is driven to displace horizontally inward through the adjusting rod 24, so that the extrusion contact block 5 displaces upward and no longer restricts the railway track stress plate 2, giving the railway track stress plate 2 some space for displacement adjustment, so as to facilitate railway workers to quickly adjust the connection position between the railway track stress plate 2 and the sleeper 1 to ensure that the steel track 3 is more accurately and stably fixed on the sleeper 1. At the same time, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.,

[0027] In summary, for the train rail bolt fastening mechanism, through the setting of the clamping and stabilizing block 9 and the combined use of the screw rod 10, the connecting piece 12, the steel sliding push plate 13 and the pulling piece 14, it plays a role in threadedly connecting the screw rod 10 with the sleeper 1 to position and fix the clamping and stabilizing block 9 from top to bottom. Then, the pulling piece 14 drives the lock catch 20 to displace downward. When the clamping and stabilizing block 9 is completely fixed on the top of the sleeper 1, the lock catch 20 is sleeved on the positioning tube 21. Then, by rotating the adjusting rod 24 and using the principle of screw propulsion, the horizontal displacement of the steel sliding push plate 13 is driven, that is, the lock catches 20 on both sides of the steel rail 3 are pulled outward to form a tight state, ensuring greater stability on both sides of the steel rail 3 and specifically restricting the forward and backward displacement of the steel rail 3, thus achieving the effect of strengthening the stability of the steel rail 3. Through the setting of the positioning plate 4 and the combined use of the extrusion contact block 5, the force-bearing steel pipe 6, the positioning sleeve 7, the force-bearing rod 8, the clamping and stabilizing block 9, the pressing collar 15, the compression spring 16, the mounting block 17 and the steel roller 18, when the adjusting rod 24 rotates to drive the horizontal displacement of the steel sliding push plate 13, at the same time, through the height displacement difference of the inclined groove at the bottom of the steel sliding push plate 13, the contact extrusion height between the steel roller 18 and the steel sliding push plate 13 is changed. That is, the force-bearing steel pipe 6 drives the extrusion contact block 5 to displace downward, making the extrusion contact block 5 located in the groove of the positioning plate 4 to extrude and position-fix the rail stress plate 2. On the contrary, when it is necessary to slightly adjust the rail stress plate 2 to change the position of the steel rail 3, through the horizontal displacement of the steel sliding push plate 13, the extrusion contact block 5 is displaced upward, no longer restricting the rail stress plate 2, so that the rail stress plate 2 has a partial displacement adjustment space, facilitating the railway staff to quickly adjust the connection position between the rail stress plate 2 and the sleeper 1 to ensure that the steel rail 3 is more accurately and stably fixed on the sleeper 1.

[0028] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0029] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fastening mechanism for train track bolts, comprising a plurality of sleepers, characterized in that: Grooves are provided at the tops on both sides of the sleeper. A railway track stress plate is placed in the groove of the sleeper. A steel rail is fixedly connected to the top of the railway track stress plate. Positioning plates are fixedly connected to both sides of the railway track stress plate. A clamping groove is provided at the top of the positioning plate. An extrusion contact block is placed in the clamping groove of the positioning plate by extrusion. A stress steel pipe is fixedly connected to the top of the extrusion contact block. A positioning sleeve is slidably sleeved on the surface of the stress steel pipe. A stress rod is fixedly connected to the side of the positioning sleeve. A clamping stability block is fixedly connected to the side of the stress rod away from the positioning sleeve. The bottom of the clamping stability block is in extrusion contact with the bottom of the groove of the sleeper. Four screw rods penetrate through the top of the clamping stability block. The four screw rods are symmetrically distributed in the front, back, left, and right directions with the center of the clamping stability block as the center. The surface of the screw rod is threadedly connected to the inner wall of the clamping stability block. The bottom of the screw rod is inserted into the interior of the sleeper. The lower surface of the screw rod is threadedly connected to the inner wall of the sleeper. A connecting piece is fixedly connected to the top of the clamping stability block. A steel sliding push plate slidably penetrates through the side of the connecting piece. An inclined surface chute is provided at the bottom of the steel sliding push plate. The surface of the steel sliding push plate is slidably connected to the inner wall of the connecting piece. A pulling piece is fixedly connected to the side of the steel sliding push plate. The other end of the pulling piece is fixedly connected to the side of the lock. An installation block is fixedly connected to the top of the stress steel pipe. A steel roller is movably installed in the middle of the installation block. The upper surface of the steel roller is located in the inclined surface chute provided at the bottom of the steel sliding push plate and is in extrusion contact with the inclined surface of the inclined surface chute of the steel sliding push plate. The inner ring of the lock is movably sleeved on the surface of the positioning pipe. The bottom of the positioning pipe is fixedly connected to the top of the railway track stress plate. An adjusting rod penetrates through the side of the connecting piece. A thread groove is provided on the surface of the adjusting rod. The surface of the adjusting rod is threadedly connected to the inner wall of the connecting piece. The surface of the adjusting rod is fixedly connected to the inner wall of the inner ring of the bearing sleeve. The bottom of the outer ring of the bearing sleeve is fixedly connected to a driving block. The bottom of the driving block is fixedly connected to the top of the steel sliding push plate; A pressure resisting sleeve ring piece is fixedly sleeved on the surface of the stress steel pipe. A compression spring is fixedly connected to the bottom of the pressure resisting sleeve ring piece. The inner ring of the compression spring is sleeved on the surface of the stress steel pipe. The bottom of the compression spring is fixedly connected to the top of the positioning sleeve; A reinforcing sleeve is slidably sleeved on the surface of the steel sliding push plate. The side of the reinforcing sleeve is fixedly connected to the side of the connecting piece.

2. The fastening mechanism for train track bolts according to claim 1, wherein: A stabilizing sleeve is fixedly sleeved on the surface of the positioning pipe. The bottom of the stabilizing sleeve is fixedly connected to the top of the railway track stress plate.

3. The bolt fastening mechanism for train tracks according to claim 1, characterized in that: A semi-circular protective elastic tube is fixedly connected to the inner wall of the lock. The inner wall of the semi-circular protective elastic tube is in extrusion contact with the surface of the positioning pipe.

4. A train track bolt fastening mechanism according to claim 1, characterized in that: A limiting plate is fixedly connected to one end of the adjusting rod. A rotating nut is fixedly connected to the other end of the adjusting rod.

5. The fastening mechanism for train track bolts according to claim 1, characterized in that: A stabilizing resistance backing plate is fixedly connected to the side of the clamping stability block away from the railway track stress plate. The side of the stabilizing resistance backing plate is in extrusion contact with the side wall of the groove of the sleeper.

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