CN211707773U - Steel rail low joint correcting equipment - Google Patents
Steel rail low joint correcting equipment Download PDFInfo
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- CN211707773U CN211707773U CN201921989131.1U CN201921989131U CN211707773U CN 211707773 U CN211707773 U CN 211707773U CN 201921989131 U CN201921989131 U CN 201921989131U CN 211707773 U CN211707773 U CN 211707773U
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- wedge
- wedge block
- correction
- horizontal square
- square hole
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Abstract
The utility model discloses a rail low joint correction equipment belongs to the railway facilities field to solve the problem of the uncontrollable correction amount that current correction equipment exists. A steel rail low joint correction device comprises a correction device main body, a wedge block and a wedge, wherein the correction device main body is C-shaped, a vertical hole is longitudinally formed in the bottom of the correction device main body, a horizontal square hole is formed in the horizontal direction, the vertical hole is communicated with the horizontal square hole, the wedge block is arranged in the vertical hole and in clearance fit with the vertical hole, the wedge is located in the horizontal square hole, a plug board of the wedge is inserted into the bottom of the wedge block and is attached to an inclined plane at the bottom of the wedge block, and the horizontal square hole in the wedge slides back and forth; the rear end of the wedge is connected with a hydraulic jack. The correction equipment uses a wedge-shaped jacking structure, the maximum acting force of the power equipment is reduced, the size of the power equipment is reduced, and the portability of the whole equipment is improved.
Description
Technical Field
The utility model belongs to the railway facilities field, concretely relates to rail low joint correction equipment.
Background
The rail welded joint is the weakest link of circuit, and the welding low joint is the common disease of circuit, can produce great impact force when the train passes through the welding low joint, and the vibrations and the impact force of production are bigger than other positions, consequently make welded joint's track destroy to be faster than other positions for the ballast bed deformation of welded joint department, directly can influence the circuit quality, bring very big harm for the train operation. The factors that cause welding of low joints are mainly: the reserved amount of the rail is too low before welding, excessive grinding is performed during grinding, and the stress and the line condition at high temperature after welding are poor, and the straightness of the low joint is generally between-0.05 mm and-0.20 mm and the maximum of the low joints of-0.1 mm according to the data analysis after field construction statistics. The iron mark TB/T1632-2014 requires that the aluminothermic welding joint is less than 0.1mm, and the flash welding joint and the gas pressure welding joint are low joints when the thickness is less than 0 mm.
Usually, a welding head is processed by grinding, correcting and inserting the short rail, but the grinding and correcting belong to the defect of excessive grinding beyond the range, the requirement of the iron standard TB/T1632-.
Most of the existing straightening equipment is designed in an asymmetric mode, and the steel rail after being straightened has the phenomenon that the front and the back of a welded joint are different in height; the existing equipment does not limit the correction amount, and under the condition of manual control, excessive correction is easy to generate, and even a welding joint is damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rail low joint correction equipment to solve the problem of the uncontrollable correction amount that current correction equipment exists.
The technical scheme of the utility model as follows: a steel rail low joint correction device comprises a correction device main body, a wedge block and a wedge, wherein the correction device main body is C-shaped, a vertical hole is longitudinally formed in the bottom of the correction device main body, a horizontal square hole is formed in the horizontal direction, the vertical hole is communicated with the horizontal square hole, the wedge block is arranged in the vertical hole and in clearance fit with the vertical hole, the wedge is located in the horizontal square hole, a plug board of the wedge is inserted into the bottom of the wedge block and is attached to an inclined plane at the bottom of the wedge block, and the horizontal square hole in the wedge slides back and forth; the rear end of the wedge is connected with a hydraulic jack.
Furthermore, the rear end of the bottom of the correction equipment main body is connected with a mounting plate, and the hydraulic jack is arranged in the mounting plate.
Furthermore, the inclination of the inclined plane at the bottom of the wedge block is 22: 1.
Further, the length of the wedge block is 110mm, and the height difference between the front side and the rear side is 5 mm.
Further, the inclination of the front half part of the inserting plate is 22: 1.
The utility model discloses a rail low joint correction equipment has following characteristics:
1. the correction equipment uses a wedge-shaped jacking structure, the maximum acting force of the power equipment is reduced, the size of the power equipment is reduced, and the portability of the whole equipment is improved.
2. The whole size of the correction device is small, the weight is light, and the correction device is suitable for various complex conditions under the line condition.
3. And more particularly to low joint correction in field operations. The method has the advantages of saving materials and manpower, being simple to operate, meeting railway standards and the like.
Drawings
FIG. 1 is a schematic view of a rail low joint straightening device;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic structural view of a rectification apparatus body in the steel rail low joint rectification apparatus;
FIG. 4 is a schematic view of a wedge block for use in a rail low end joint straightening device;
FIG. 5 is a schematic view of a wedge in a rail low joint straightening device;
FIG. 6 is a schematic view of the mounting plate of the rail low end joint straightening device;
FIG. 7 is a schematic view of a rail low splice correction device engaged with a rail.
1-a corrective device body; 11-vertical holes; 12-horizontal square holes; 2-wedge block; 21-inclined plane; 3-a wedge; 31-inserting plate; 4-mounting a plate; 5-steel rail; 6-hydraulic jack; 7-arc concave.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in the figure, the steel rail low joint correcting device comprises a correcting device body 1, a wedge block 2 and a wedge 3, wherein the correcting device body 1 is C-shaped, a vertical hole 11 is longitudinally formed in the bottom of the correcting device body 1, a horizontal square hole 12 is formed in the horizontal direction, the vertical hole 11 is communicated with the horizontal square hole 12, the wedge block 2 is arranged in the vertical hole 11 and is in clearance fit with the vertical hole 11, the wedge 3 is located in the horizontal square hole 12, an inserting plate 31 of the wedge 3 is inserted into the bottom of the wedge block 2 and is attached to an inclined surface 21 at the bottom of the wedge block 2, and the wedge 3 slides back and forth in the horizontal square hole 12; the rear end of the wedge 3 is connected with a hydraulic jack 6.
The rear end of the bottom of the correction equipment main body 1 is connected with a mounting plate 4 through bolts, and a hydraulic jack 6 is arranged in the mounting plate 4.
The slope of the inclined surface 21 at the bottom of the wedge block 2 is 22: 1. The slope of the front half of the insert plate 31 is 22: 1. The length of the wedge 2 is 110mm, and the height difference between the front side and the rear side is 5 mm.
The mounting plate is used for connecting the power equipment with the whole body and inputting power. The hydraulic jack adopts a 3T hydraulic jack.
The specific working process is as follows: and heating the full section of the steel rail welding seam by using the heating part to ensure that the temperature reaches about 700 ℃, quickly withdrawing the heating part, and clamping the assembled correction equipment in the center of the steel rail welding seam. An arc recess 7 with the depth of 0.6mm is arranged at the contact part of the straightening device body 1 and the top surface of the steel rail 5 and is used for limiting the bending amount of the steel rail.
A hydraulic jack 6 is placed in the mounting plate 4, the acting force of a jack rod of the hydraulic jack is applied to the tail part of the wedge 3, the wedge 3 slides along the horizontal square hole 12, the wedge 3 interacts with the contact surface of the wedge 2 to lift the wedge 2, the correcting force is applied to the bottom of the steel rail, the part pressed on the steel rail applies downward force to the two ends of the welding seam, and the steel rail is corrected by the resultant force of the three forces;
and when the hydraulic jack reaches the maximum force, taking down the hydraulic jack, waiting for the cooling of the steel rail, pulling out the wedge 3 by using the wedge pull rod, and taking down the correction equipment to finish correction.
Claims (5)
1. A rail low joint straightening device is characterized in that: the correcting device comprises a correcting device body (1), a wedge block (2) and a wedge (3), wherein the correcting device body (1) is C-shaped, a vertical hole (11) is longitudinally formed in the bottom of the correcting device body (1), a horizontal square hole (12) is formed in the horizontal direction, the vertical hole (11) is communicated with the horizontal square hole (12), the wedge block (2) is arranged in the vertical hole (11) and in clearance fit with the vertical hole, the wedge (3) is located in the horizontal square hole (12), an inserting plate (31) of the wedge (3) is inserted into the bottom of the wedge block (2) and is attached to an inclined plane (21) at the bottom of the wedge block (2), and the wedge (3) slides back and forth in the horizontal square hole (12); the rear end of the wedge (3) is connected with a hydraulic jack (6).
2. A rail low joint straightening apparatus according to claim 1, wherein: the rear end of the bottom of the correction equipment main body (1) is connected with a mounting plate (4), and a hydraulic jack (6) is arranged in the mounting plate (4).
3. A rail low joint straightening device according to claim 1 or 2, characterized in that: the inclination of the inclined plane (21) at the bottom of the wedge block (2) is 22: 1.
4. A rail low joint straightening apparatus according to claim 3, wherein: the length of the wedge block (2) is 110mm, and the height difference between the front side and the rear side is 5 mm.
5. A rail low joint straightening apparatus according to claim 4, characterized in that: the inclination of the front half part of the inserting plate (31) is 22: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921989131.1U CN211707773U (en) | 2019-11-18 | 2019-11-18 | Steel rail low joint correcting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921989131.1U CN211707773U (en) | 2019-11-18 | 2019-11-18 | Steel rail low joint correcting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211707773U true CN211707773U (en) | 2020-10-20 |
Family
ID=72815827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921989131.1U Active CN211707773U (en) | 2019-11-18 | 2019-11-18 | Steel rail low joint correcting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211707773U (en) |
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2019
- 2019-11-18 CN CN201921989131.1U patent/CN211707773U/en active Active
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