CN115928510A - Temporary connecting device for rail joint - Google Patents
Temporary connecting device for rail joint Download PDFInfo
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- CN115928510A CN115928510A CN202310039154.0A CN202310039154A CN115928510A CN 115928510 A CN115928510 A CN 115928510A CN 202310039154 A CN202310039154 A CN 202310039154A CN 115928510 A CN115928510 A CN 115928510A
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- rail
- steel rail
- steel
- clamping plate
- calipers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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Abstract
The invention discloses a temporary coupling device for a steel rail joint, which comprises steel rail clamping plates arranged on two sides of rail web of two adjacent steel rails, wherein a middle clamping device is arranged on the outer side of the steel rail clamping plate at the rail gap of the two adjacent steel rails, side clamping devices are respectively arranged on two sides of the middle clamping device, the middle clamping device comprises two middle calipers respectively arranged on the outer sides of the two steel rail clamping plates, the two middle calipers are fixedly connected, the middle calipers are respectively clamped with a steel rail bottom and the steel rail clamping plate, an upper pressing strip is arranged above the middle calipers, the upper pressing strip is provided with an inclined surface, the inclined surface is inserted into a gap between the steel rail head and the steel rail clamping plate, the side clamping devices comprise two small calipers arranged on the outer sides of the two steel rail clamping plates and an auxiliary clamping plate arranged on the outer sides of the small calipers, the two small calipers and the auxiliary clamping plate are fixedly connected through second long screw rods, and the small calipers are respectively clamped with the steel rail bottom and the steel rail clamping plate. The invention avoids or reduces the increase of the rail gap, avoids the treading of the rail gap and prevents the damage of the rail joint.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a temporary connecting device for a steel rail joint.
Background
At present, the total length of a Mexico Maya railway line is about 1452km, the highest design speed per hour is 160km/h for passenger transportation, and the highest design speed per hour is 100km/h for cargo transportation. The engineering of laying rails for Mexico and Maya railway projects adopts the implementation scheme that rail panels are laid in groups and welded to form seamless lines, the rails are laid after being nailed, and long rails are welded on site. The main procedures of laying and welding seamless lines in groups on the track panel are as follows: the rail row nails are connected → the rail row is laid by the rail laying machine → the short rail is welded into the long rail → the stress is released and locked. The process is simple in technology, economical and applicable, and can utilize the existing track panel laying equipment and save a large number of tool rails. However, the field implementation is limited by process conversion, construction space and the like, rail welding can be carried out after the rail panel is laid for 1-2km, rail laying equipment and an engineering train must pass through the rail panel for many times, impact vibration is generated on the end of the steel rail at the welding seam without welding, and the end of the steel rail at the rail seam is easy to damage. When a rail joint is welded, if a rail end is not sawed, the quality of a seamless rail is influenced due to more damage of the rail end; if the rail end is continuously sawed off, the frequent rail stringing brings huge extra workload, influences the work efficiency and increases the construction cost.
For the steel rail with holes at the rail end, the steel rail connection is realized through a joint clamping plate device, and the method is applied to the local railway with low speed per hour and small transportation volume in China. On mexican maya railways, bolt holes are not provided between rails because the rails are welded to long rails at last. Due to the absence of bolt holes, ordinary joint splints (including joint bolts) cannot be used for joining. At this time, a rail emergency treatment device (temporary clamp) is used to temporarily connect the rail joint by the emergency treatment device and two clamps (one on the left and right sides), but the following problems exist:
1) Although a certain coupling effect is achieved, the capability of preventing the steel rail from stretching is not strong (namely the force for buckling and pressing the steel rail is insufficient), so that when the cooling amplitude is large, the rail gap value is large due to the fact that the steel rail is shortened, when a construction vehicle passes through the rail gap, wheels generate downward impact on the rail end of the steel rail, the steel rail is treaded or is subjected to downward plastic bending deformation, the steel rail is required to be sawed off no matter the steel rail is treaded or is subjected to downward plastic bending deformation, and otherwise the long-term service performance of the steel rail cannot be guaranteed;
2) The existing first-aid device mainly plays a role in connecting two adjacent steel rails, when a train passes through, the effect of the first-aid device is not fully exerted, more train loads of the first-aid device still need to be borne by the cantilever ends of the steel rails, and therefore the steel rails generate vertical plastic deformation.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a temporary coupling device for a steel rail joint, which avoids or reduces the increase of a rail gap, avoids the treading of the rail gap, prevents the damage of the steel rail joint, reduces the construction cost and improves the construction efficiency.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a temporary coupling device for a steel rail joint comprises steel rail clamping plates arranged on two sides of two adjacent steel rail web portions, wherein an intermediate clamping device is arranged on the outer side of each steel rail clamping plate at a rail gap between two adjacent steel rails, side clamping devices are respectively arranged on two sides of the intermediate clamping device, the intermediate clamping device comprises two intermediate calipers respectively arranged on the outer sides of the two steel rail clamping plates, the two intermediate calipers are fixedly connected through two first long screw rods of the sides, the intermediate calipers are respectively clamped with a steel rail bottom and the steel rail clamping plates, an upper pressing strip is arranged above the intermediate calipers and provided with an inclined surface and an inclined surface, the inclined surface is inserted into a gap between the steel rail head and the steel rail clamping plates, the side clamping devices comprise two small calipers respectively arranged on the outer sides of the two steel rail clamping plates and an auxiliary clamping plate arranged on the outer sides of the small calipers, the two small calipers and the auxiliary clamping plates are fixedly connected through second long screw rods, and the small calipers are respectively clamped with the steel rail bottom and the steel rail clamping plates.
The technical scheme of the invention is further improved as follows: the lower part of middle calliper inserts in the sliding bottom plate, the side of middle calliper is provided with the tight stand in top, the tight stand sliding connection sliding bottom plate in top, sliding bottom plate's end fixing is provided with the end baffle, the tight stand in top's upper portion is through bolt and middle calliper top tightly, and both ends end baffle and the tight stand in top pass through third long screw fixed connection with sliding bottom plate.
The technical scheme of the invention is further improved as follows: the steel rail clamping plate is provided with a V-shaped inclined surface, two wedge blocks are arranged in the V-shaped inclined surface, and the wedge blocks are fixedly connected with the middle calipers through wedge block limiting blocks in a threaded mode.
The technical scheme of the invention is further improved as follows: and the two wedges are connected through a compression spring.
The technical scheme of the invention is further improved as follows: and a jacking bolt for jacking the wedge block limiting block is arranged on the side edge of the middle caliper.
The technical scheme of the invention is further improved as follows: and the surfaces of the steel rail clamping plate and the wedge block, which are in contact with the rail web of the steel rail, are provided with racks.
The technical scheme of the invention is further improved as follows: the two ends of the steel rail clamping plate are provided with grooves, and the grooves are arranged right above the sleeper.
The technical scheme of the invention is further improved as follows: the bottom surface of the steel rail clamping plate and the rail bottom of the steel rail are respectively connected with the small calipers in a sealing way.
Due to the adoption of the technical scheme, the invention has the technical progress that:
1. the temporary connection device for the rail joints ensures that the rail joints are not enlarged any more, avoids the step of the rail joints, prevents the damage of the rail joints, reduces the construction cost, improves the construction efficiency, is not only suitable for the rail panel welding seamless line engineering, but also suitable for the engineering of welding the non-seamless line after the long rail is laid, and is also suitable for the temporary connection of turnout rail pieces, thereby having great popularization significance;
2. when the steel rail is contracted due to cooling, the steel rail and the steel rail clamping plate are more and more tightened due to the inclined surface between the wedge block and the steel rail clamping plate, and meanwhile, the contact surfaces of the wedge block and the steel rail clamping plate with the steel rail are provided with the sawteeth, so that the friction force between the wedge block and the steel rail clamping plate with the steel rail is increased, the steel rail clamping plate tightly pulls two adjacent steel rails, and the increase of a rail gap is avoided or reduced; moreover, the compression spring between the two wedge blocks can tension the wedge blocks constantly, and the contraction of the two adjacent steel rails becomes smaller by the tension of the steel rail clamping plates, so that the rail gap is not enlarged any more;
4. the middle clamping device fixes the steel rail clamping plate, the upper pressing strip is pressed into a gap between the steel rail and the steel rail clamping plate, the lower edge of the steel rail clamping plate is contacted with the upper surface of the small caliper which protrudes, the lower surface of the small caliper which protrudes is contacted with the upper surface of the rail bottom of the steel rail, when a train passes through a rail gap, the downward force applied to the steel rail by the train is transmitted to the upward force at the rail bottom of the steel rail at two sides through the small calipers at two sides by the inclined plane among the upper pressing strip, the steel rail clamping plate and the wedge block, so that the length of a cantilever is greatly shortened, the downward deformation at the rail gap is smaller, and the treading at the rail gap is avoided;
5. the jacking upright column slides in the sliding bottom plate, the upper part of the jacking upright column is jacked with the middle calipers through the bolts, so that the force borne by the jacking upright column can be transmitted to the sliding bottom plate, the pressing force of the middle calipers is greatly improved, meanwhile, the middle calipers are provided with pressure through two first long screw rods on the side edges of the two middle calipers and a third long screw rod for fixing end baffles at two ends and jacking upright columns and the sliding bottom plate, and the clamping force on a steel rail clamping plate and a steel rail is increased.
Drawings
FIG. 1 is a schematic view of the temporary coupling device for rail joints according to the present invention;
FIG. 2 is a schematic view of the intermediate clamping mechanism of the present invention;
FIG. 3 is a schematic view of an intermediate caliper according to the present invention;
FIG. 4 is a schematic view of the construction of the sliding bottom plate of the present invention;
FIG. 5 is a schematic view of the wedge construction of the present invention;
FIG. 6 is a schematic illustration of the rail clamp configuration of the present invention;
FIG. 7 is a schematic view of a portion of the intermediate clamp assembly of the present invention attached to a rail;
FIG. 8 is a schematic cross-sectional view C-C of FIG. 7 of the present invention;
FIG. 9 is a schematic view showing the overall structure of the side clamping apparatus of the present invention;
FIG. 10 is a side view of the side clamping assembly of the present invention attached to a rail;
the clamping device comprises a steel rail 1, a steel rail 2, a steel rail clamping plate 2-1, a groove 3, a middle clamping device 4, a side clamping device 5, a middle caliper 6, a first long screw rod 7, an upper pressing strip 8, a small caliper 9, an auxiliary clamping plate 10, a second long screw rod 11, a sliding bottom plate 12, a jacking upright column 13, an end baffle plate 14, a third long screw rod 15, a wedge block 16, a wedge block limiting block 17, a compression spring 18, a jacking bolt 19 and a sleeper.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
as shown in fig. 1, the temporary coupling device for rail joints comprises rail clamping plates 2 arranged on two sides of a rail web of two adjacent rails 1, a middle clamping device 3 is arranged on the outer side of the rail clamping plate 2 at a rail gap of the two adjacent rails 1, and side clamping devices 4 are respectively arranged on two sides of the middle clamping device 3.
As shown in fig. 2 to 8, the middle clamping device 3 includes two middle calipers 5 respectively disposed at the outer sides of the two rail clamping plates 2, the two middle calipers 5 are fixedly connected through two first long screws 6 at the side edges, the middle calipers 5 are respectively clamped with the rail bottom of the rail 1 and the rail clamping plates 2, an upper pressing bar 7 is disposed above the middle calipers 5, and the upper pressing bar 7 is provided with an inclined surface and the inclined surface is inserted into a gap between the rail head of the rail 1 and the rail clamping plates 2. The lower part of the middle caliper 5 is inserted into the sliding bottom plate 11, the side of the middle caliper 5 is provided with a tightly-pushing upright post 12, the tightly-pushing upright post 12 is connected with the sliding bottom plate 11 in a sliding mode, the end part of the sliding bottom plate 11 is fixedly provided with an end baffle 13, the upper part of the tightly-pushing upright post 12 is tightly pushed against the middle caliper 5 through a bolt, and the end baffles 13 at the two ends and the tightly-pushing upright post 12 are fixedly connected with the sliding bottom plate 11 through a third long screw 14.
The tight stand 12 in top slides in sliding bottom plate 11, the tight stand 12 upper portion in top is tight through bolt and 5 tops of centre calliper, just so can transmit the power that the tight stand 12 in top received for sliding bottom plate 11, thereby very big improvement the packing force of centre calliper 5, and simultaneously, two first long screw rods 6 and middle fixed both ends end baffle through two centre calliper 5 sides, the tight stand in top provides pressure for centre calliper 5 with sliding bottom plate's third long screw rod 14, the clamp force to rail splint 2 and rail 1 has been increased.
The rail clamping plate 2 is provided with a V-shaped inclined surface, two wedge blocks 15 are arranged in the V-shaped inclined surface, and the surfaces of the rail clamping plate 2 and the wedge blocks 15, which are in contact with the rail web of the rail 1, are provided with racks, so that the friction force between the rail clamping plate 2 and the rail 1 can be increased. The two wedges 15 are connected by a compression spring 17. The wedge 15 is fixedly connected with the middle caliper 5 through threads of a wedge limiting block 16, and the wedge limiting block 16 ensures that the wedge 15 does not fall off when sliding in the slideway. The side of the middle caliper 5 is provided with a puller bolt 18 for pulling a wedge block limiting block 16, when the middle clamping device 3 is installed, the puller bolts 18 at two ends are screwed, the wedge block limiting block 16 is pulled, and then a compression spring 17 is compressed, so that the contact between the wedge block 15 and the steel rail 1 is reduced. When the rail clamp plate 2 is installed, the wedge 15 is not contacted with the rail 1, and the middle caliper 5 can clamp the rail clamp plate 2.
When the steel rail 1 is contracted due to cooling, the steel rail 1 and the steel rail clamping plate 2 are more and more tightened due to the inclined plane between the wedge block 15 and the steel rail clamping plate 2, meanwhile, the contact surfaces of the wedge block 15 and the steel rail clamping plate 2 with the steel rail 1 are provided with the saw teeth, the friction force between the wedge block 15 and the steel rail clamping plate 2 as well as the steel rail 1 is increased, the steel rail clamping plate 2 tightly pulls the two adjacent steel rails 1, and therefore the increase of a rail gap is avoided or reduced; furthermore, the compression spring 17 between the two wedges 15 can tension the wedges 15 at all times, so that the contraction of two adjacent rails 1 becomes smaller by the tension of the rail clamp 2, and the rail gap does not increase any more.
Railway rail clip is a component of a rail used to connect a rail 1 to a tie 15 and functions to secure the rail 1 to the tie 15, maintain gauge and prevent longitudinal and lateral movement of the rail 1 relative to the tie 15. In the application, two ends of a steel rail clamping plate 2 are provided with grooves 2-1, and the grooves 2-1 are arranged right above sleepers 19. The purpose of the recess 2-1 is to provide space for the rail clip to be installed so that the rail clip will not be affected even when the rail joint temporary attachment of the present patent application is installed.
As shown in fig. 9, the side clamping device 4 includes two small calipers 8 respectively disposed on the outer sides of the two rail clamping plates 2 and an auxiliary clamping plate 9 disposed on the outer side of the small calipers 8, the small calipers 8 and the auxiliary clamping plate 9 are fixedly connected through a second long screw 10, and the small calipers 8 are respectively clamped with the rail bottom of the rail 1 and the rail clamping plates 2. The bottom surface of the steel rail clamping plate 2 and the rail bottom of the steel rail 1 are respectively connected with the small calipers 8 in a sealing way.
In order to avoid the treading at the rail gap of the adjacent steel rail 1, firstly, the middle clamping device 3 fixes the steel rail clamping plate 2, the upper pressing strip 7 is pushed into the gap between the rail head of the steel rail 1 and the steel rail clamping plate 2, the lower edge of the steel rail clamping plate 2 is contacted with the surface A1 shown in the protruded upper drawing 10 of the small caliper 8, the surface A2 shown in the protruded lower drawing 10 of the small caliper is contacted with the upper surface of the rail bottom of the steel rail 1, when a train passes through the rail gap, the downward force applied to the steel rail by the train is transmitted to the upward force at the rail bottom of the steel rail 1 at two sides through the small calipers 8 at two sides by the inclined plane between the upper pressing strip 7, the steel rail clamping plate 2 and the wedge block 15, so that the length of a cantilever is greatly shortened, the downward deformation at the rail gap is smaller, and the treading at the rail gap is avoided.
The temporary connection device for the rail joints ensures that the rail joints are not enlarged any more, avoids the step of the rail joints, prevents the damage of the rail joints, reduces the construction cost, improves the construction efficiency, is not only suitable for the project of welding and connecting seamless lines on rail panels, but also suitable for the project of welding and connecting non-seamless lines after long rails are laid, and is also suitable for the temporary connection of turnout rail pieces, thereby having great popularization significance.
Claims (8)
1. A temporary rail joint coupling device, comprising: including setting up in rail splint (2) in two adjacent rail (1) web both sides, adjacent two rail splint (2) outside of rail seam department between rail (1) is provided with middle chucking device (3), middle chucking device (3) both sides are provided with side chucking device (4) respectively, middle chucking device (3) are including setting up in two middle callipers (5) in two rail splint (2) outsides respectively, two middle callipers (5) are through two first long screw (6) fixed connection of side, middle calliper (5) and rail (1) rail end and rail splint (2) joint respectively, the top of middle calliper (5) is provided with upper press strip (7), upper press strip (7) are provided with inclined plane and insert in the gap of rail head (1) railhead and rail splint (2), side chucking device (4) are including setting up in two callipers (8) in two rail splint (2) outsides and setting up in calliper (9) the outside of calliper (8) respectively, calliper (8) and vice calliper (9) are through second long screw (10) are connected rail splint (1) and rail splint (2) joint respectively.
2. A rail joint temporary coupling device according to claim 1, wherein: the lower part of centre calliper (5) inserts in sliding bottom plate (11), the side of centre calliper (5) is provided with the tight stand in top (12), the tight stand in top (12) sliding connection sliding bottom plate (11), the end fixing of sliding bottom plate (11) is provided with end baffle (13), the upper portion of the tight stand in top (12) is through bolt and centre calliper (5) top tightly, and both ends end baffle (13) and the tight stand in top (12) pass through third long screw (14) fixed connection with sliding bottom plate (11).
3. A rail joint temporary coupling device according to claim 1, wherein: the steel rail clamping plate is characterized in that a V-shaped inclined surface is arranged on the steel rail clamping plate (2), two wedge blocks (15) are arranged in the V-shaped inclined surface, and the wedge blocks (15) are fixedly connected with the middle calipers (5) through wedge block limiting blocks (16) in a threaded mode.
4. A rail joint temporary coupling device according to claim 3, wherein: the two wedges (15) are connected through a compression spring (17).
5. A rail joint temporary coupling device according to claim 3, wherein: and a jacking bolt (18) for jacking a wedge block limiting block (16) is arranged on the side edge of the middle caliper (5).
6. A rail joint temporary coupling device according to claim 3, wherein: the surfaces of the steel rail clamping plate (2) and the wedge block (15) contacting with the rail web of the steel rail (1) are provided with racks.
7. A rail joint temporary coupling device according to claim 3, wherein: two ends of the steel rail clamping plate (2) are provided with grooves (2-1), and the grooves (2-1) are arranged right above the sleeper (19).
8. A rail joint temporary coupling device according to claim 1, wherein: the bottom surface of the steel rail clamping plate (2) and the rail bottom of the steel rail (1) are respectively connected with the small calipers (8) in a sealing way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310039154.0A CN115928510A (en) | 2023-01-12 | 2023-01-12 | Temporary connecting device for rail joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310039154.0A CN115928510A (en) | 2023-01-12 | 2023-01-12 | Temporary connecting device for rail joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115928510A true CN115928510A (en) | 2023-04-07 |
Family
ID=86649400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310039154.0A Pending CN115928510A (en) | 2023-01-12 | 2023-01-12 | Temporary connecting device for rail joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115928510A (en) |
-
2023
- 2023-01-12 CN CN202310039154.0A patent/CN115928510A/en active Pending
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