High-speed frog lifting appliance

Abstract

A high-speed frog lifting appliance comprises a lifting beam, a rail lifting trolley lifting appliance and a rail supporting trolley lifting appliance, the main body structure of the lifting beam is I-shaped steel, two lifting lugs are arranged at the two ends of the upper portion of the I-shaped steel, the lifting lugs are used for being connected with a crane, independent lifting ropes with the same length are adopted when the lifting lugs are connected with a portal crane or a lifting hook of a rail crane, and two trolley stoppers are installed at the two ends of the upper side of a lower flange plate of the I-shaped steel. And the car stop is used for limiting the rail lifting running car lifting appliance and the rail supporting running car lifting appliance during transverse movement. The problems that an existing crane and a frog are unstable in connection and prone to turning over, and safety of a lifting belt is insufficient are solved. According to the utility model, the conventional flexible connection is changed into hard connection, and the conventional transverse single-point connection is changed into double-point connection, so that the transverse stability is solved, and the connection universality of frogs of different models and different parts is realized.

Description

Technical Field

[0001] The utility model discloses a lifting tool, specifically a high-speed frog lifting tool. Background Art

[0002] With the increase of operation time, the damage of the movable frog of high-speed railway will gradually appear. When the damage reaches a certain degree, the whole frog needs to be replaced. It is difficult to replace the movable frog of high-speed railway on the operating line. Taking a set of No. 42 turnout as an example, the length of the movable frog is 24m - 31m, the weight is about 8 tons - 10 tons, and the weight distribution is uneven in three dimensions. When replacing it during the skylight time of the high-speed railway on the operating line, it is necessary to complete complicated work such as sawing the rail at 4 places, removing a set of old frogs, installing a set of new frogs, welding the joints at 4 places, and installing and debugging the corresponding switchgear within limited time and space. The biggest difficulty lies in the lifting of the frog.

[0003] For different types of frogs, the requirements for the lifting positions are different. The sizes, shapes and weight distributions of the frog rails at the lifting points are different, making it difficult to make the frog lifting tools universal. Therefore, the frog is generally lifted by flexible connection. For the protection of components such as frog rails and pyrite pads, a lifting sling is generally used to connect the crane and the frog, and in some cases, a connection method of steel wire rope + protection pad is also used.

[0004] At present, there are mainly two lifting methods for the movable frog of high-speed railway on the operating line: one is the cooperation of the track crane on the adjacent line for lifting, and the other is the lifting and lateral translation by the gantry crane. However, both lifting methods use a sling to bundle and connect the frog with one lifting point at the front and one at the back. But this sling bundling method is prone to problems such as instability of the center of gravity and lateral flipping, insufficient safety factor, and easy wear.

[0005] Due to the large weight, irregular shape and large three-dimensional size difference of the frog (the longitudinal dimension can reach 30 meters, the lateral dimension is less than 1 meter, and the vertical dimension is only 0.3 meter), generally one lifting point is set at the front and one at the back for both lifting methods, and the sling is used for bundling and lifting at the lifting points. But this soft sling bundling method is prone to problems such as instability of the center of gravity and lateral flipping, insufficient safety factor, and easy wear. If the frog flips during the lifting process, it will cause a large impact load, which may damage the lifting equipment and the frog, and even cause accidents.

[0006] To sum up, when replacing the movable frog of high-speed railway on the operating line, the stability of the frog during lifting is a major problem. Therefore, it is urgent to carry out research to propose a high-speed frog lifting tool with safety, effectiveness and excellent universality to provide technical support for on-site implementation. Summary of the Utility Model

[0007] The present utility model aims to solve two problems during the hoisting of the movable frog turnout on the existing operational line high-speed railway. One is the problem that the connection between the crane and the frog turnout is unstable and prone to tipping over, and the safety of the sling is insufficient. The other is the problem that it is difficult to make the frog turnout lifting tools universal due to the irregular shape of the frog turnout.

[0008] A high-speed frog turnout lifting tool, comprising a lifting beam, a rail-lifting carriage lifting tool, and a rail-supporting carriage lifting tool, characterized in that: the main structure of the lifting beam is an I-beam, and there are two lifting lugs at both ends above the I-beam. The lifting lugs are used to connect the crane, and equal-length independent lifting ropes are used when connecting the lifting lugs with the hooks of a gantry crane or a rail crane. Two vehicle stops are installed at both ends on the upper side of the lower flange plate of the I-beam, and the vehicle stops are used to limit the lateral movement of the rail-lifting carriage lifting tool and the rail-supporting carriage lifting tool.

[0009] Preferably: the rail-lifting carriage lifting tool is used to connect the rear section or the front section of the frog turnout to the frog turnout, and includes a carriage frame, carriage wheels, adjusting screws, pressing screws, and clamps; the upper end of the carriage frame is connected to the carriage wheels and the pressing screws, and the lower end is connected to the clamps through a pin shaft; the carriage wheels are suspended on the lower flange plate of the I-beam; the adjusting screws are connected to the carriage frames on both sides at both ends; the pressing screws achieve the purpose of lateral locking by clamping the web of the I-beam, and when loosened, the frog turnout can be laterally pushed by manpower for lateral position adjustment.

[0010] Preferably: the head of the pressing screw has a pressing head supported by rubber; the clamp is used to connect the rail head of the frog turnout rail.

[0011] Preferably: the adjusting screw is a two-way screw, which is used to adjust the distance between the carriage frames on both sides to adapt to the connection of frog turnout rails with different distances.

[0012] Preferably: the rail-supporting carriage lifting tool is used to connect the middle section of the frog turnout to the frog turnout. The rail-supporting carriage lifting tool includes a carriage frame, carriage wheels, adjusting screws, pin shafts, pressing screws, pressing heads, a support plate, support plate connecting bolts, and a suspension bracket; the upper end of the carriage frame is connected to the carriage wheels and the pressing screws, and the lower end is connected to the suspension bracket through a pin shaft. The suspension bracket is connected to the support plate through the support plate connecting bolts, and the frog turnout rail is carried on the support plate; the carriage wheels are suspended on the lower flange plate of the I-beam; the adjusting screws are connected to the carriage frames on both sides at both ends; the pressing screws achieve the purpose of lateral locking by clamping the web of the I-beam, and when loosened, the frog turnout can be laterally pushed by manpower for lateral position adjustment. Beneficial effects

[0013] A high-speed frog turnout lifting tool with strong stability, high safety, and good versatility. Description of the drawings

[0014] Figure 1 It is the working state when the high-speed frog turnout lifting tool connects the rear section or the front section of the frog turnout to the frog turnout;

[0015] Among them: lifting beam 1, rail-lifting trolley sling 2, frog rail 4.

[0016] Figure 2 It is the working state when the high-speed frog sling connects to the frog in the middle section of the frog.

[0017] Among them: lifting beam 1, derailed trolley sling 3, frog rail 4.

[0018] Figure 3 It is a schematic diagram of the lifting beam structure.

[0019] Among them: I-beam 11, lifting lug 12, bumper 13.

[0020] Figure 4 It is a schematic diagram of the rail-lifting trolley sling structure.

[0021] Among them: trolley frame 21, trolley wheel 22, adjusting screw 23, axle pin 24, pressing screw 25, pressing head 26, clamp 27, frog rail 4.

[0022] Support plate 28, support plate connecting bolt 29, hanger 30.

[0023] Figure 5 It is a schematic diagram of the rail-supporting trolley sling structure.

[0024] Among them, trolley frame 21, trolley wheel 22, adjusting screw 23, axle pin 24, pressing screw 25, pressing head 26, support plate 28, support plate connecting bolt 29, hanger 30. Detailed implementation method

[0025] A high-speed frog sling includes a lifting beam 1, a rail-lifting trolley sling 2, and a rail-supporting trolley sling 3. The main structure of the lifting beam 1 is an I-beam 11. There are two lifting lugs 12 at both ends above the I-beam 11. The lifting lugs 12 are used to connect to the crane. When the lifting lugs 12 are connected to the hook of a gantry crane or a rail crane, equal-length independent lifting ropes are used. Two bumpers 13 are installed on the upper side of the lower flange plate of the I-beam 11. The bumpers 13 are used to prevent the rail-lifting trolley sling 2 and the rail-supporting trolley sling 3 from being limited during lateral movement.

[0026] The rail-lifting trolley sling 2 is used to connect the frog at the rear or front section of the frog. The upper end of the trolley frame 21 is connected to the trolley wheels 22 and the compression screw 25, and the lower end is connected to the clamp 27 through the pin shaft 24. The trolley wheels 22 are suspended on the lower flange plate of the I-beam 11 and can move horizontally. The adjusting screw 23 is a bidirectional screw, and both ends are connected to the trolley frames 21 on both sides, which is used to adjust the distance between the trolley frames 21 on both sides to adapt to the connection of frog rails 4 with different distances. The compression screw 25 achieves the purpose of lateral locking by clamping the web of the I-beam 11. When loosened, the frog can be horizontally pushed by manpower for lateral position adjustment. The head of the compression screw 25 has a compression head 26 supported by rubber, which can increase the locking effect of the compression screw 25. The clamp 27 is used to connect the rail head of the frog rail 4.

[0027] In addition, there are 2 standard-section rails (with rail heads) at the front section of the frog, and generally 4 standard-section rails (with rail heads) at the rear section of the frog. Since both the front section and the rear section of the frog are standard-section rails, they can be connected with the most commonly used rail clamps for railways. However, for stability, the frog sling described in the present invention needs to connect 2 rail clamps at the same section. But because the distances between these rails are different, the positions of the rail clamps need to be adjustable for generality. Therefore, the rail-lifting trolley sling is used. The middle section of the frog (switching part) is generally a special-shaped section rail, which is difficult to install rail clamps, or the distance between the two rail heads is too close, and there is not enough space to install 2 rail clamps. Therefore, the rail-supporting trolley sling is specifically designed.

[0028] The rail-supporting trolley sling 3 is used to connect the frog at the middle section of the frog. The upper end of the trolley frame 21 is connected to the trolley wheels 22 and the compression screw 25, and the lower end is connected to the hanger 30 through the pin shaft 24. The trolley wheels 22 are suspended on the lower flange plate of the I-beam 11 and can move horizontally. The adjusting screw 23 is a bidirectional screw, and both ends are connected to the trolley frames 21 on both sides, which is used to adjust and fix the distance between the trolley frames 21 on both sides. The compression screw 25 achieves the purpose of lateral locking by clamping the web of the I-beam 11. When loosened, the frog can be horizontally pushed by manpower for lateral position adjustment. The head of the compression screw 25 has a compression head 26 supported by rubber, which can increase the locking effect of the compression screw 25. The support plate 28 is installed at the rail bottom of the frog rail 4 and supports the frog rail 4 from bottom to top. When installing, the support plate 28 penetrates into the frog rail 4 from the lower part, and the hanger 30 straddles above the frog rail 4. Then, the support plate 28 and the hanger 30 are connected through the support plate connecting bolt 29, and the installation of the rail-supporting trolley sling 3 is completed.

[0029] Next, we will elaborate in detail on the working principle and working process of the high-speed frog sling.

[0030] Taking a set of No. 42 turnouts as an example, the movable-point frog is lifted by using 2 sets of frog lifting tools simultaneously. Among them, one set of frog lifting tools is installed in the middle section of the frog, and one set of frog lifting tools is installed in the rear section of the frog. Both sets of frog lifting tools are connected to the track inspection vehicle or gantry crane through the lifting lugs 12 of the lifting beam 1. Below the lifting beam 1 of the frog lifting tool located in the middle section of the frog, there is a rail lifting car lifting tool 2 that can move along the lifting beam. The rail lifting car lifting tool 2 is carried on the lower flange plate of the lifting beam 1 through four running wheels 22 in the front, rear, left, and right directions. The spacing of the running wheels 22 along the lifting beam 1 can be adjusted by an adjusting screw 23, indirectly adjusting the spacing of the two clamps 27 to adapt to different spacings of the frog rails 4, so as to adapt to different turnout model sizes and different lifting position sizes. The two clamps 27 are connected to the two rail heads of the frog rail 4, and the clamps 27 are connected to the car body frame 21 through a pin shaft 24. The upper end of the car body frame 21 is connected to the running wheels 22. Thus, a self-bottom-up rail load transfer path from the rail clamp 27, pin shaft 24, car body frame 21, running wheels 22, I-beam 11, and lifting lug 12 to the crane is formed. At the same time, because the two clamps 27 have a certain spacing and can be adjusted, while adapting to different frog models and different frog position lifts, two vertical force transfer paths are formed at the same frog section, achieving the purpose of improving the stability during the frog lifting process and preventing the frog from flipping. After the frog is lifted, if the lateral position of the frog rail 4 needs to be adjusted, the compression screw 25 can be loosened to make the compression head 26 disengage from the I-beam 11. After manually moving the frog rail 4 along the I-beam 11 to the appropriate position, the compression screw 25 is tightened to make the compression head 26 press and fix with the I-beam 11. When it moves to the end of the I-beam 11, it will be blocked by the bumper 13 to prevent the rail from being lifted off.

[0031] Another set of lifting beams 1 of the frog sling installed in the middle section of the frog is connected below to a rail-lifting trolley sling 2 that can move along the lifting beam. The rail-lifting trolley sling 2 is carried on the lower flange plate of the lifting beam 1 by four running wheels 22 in the front, back, left, and right directions. The spacing of the running wheels 22 along the lifting beam 1 can be adjusted and fixed by adjusting screws 23. A support plate 28 drags the frog rail 4 below the frog rail 4. The support plate 28 is connected to a hanger 30 through support plate connection bolts 29. The hanger 30 is connected to a trolley frame 21 through a pin shaft 24. The upper end of the trolley frame 21 is connected to the running wheels 22. Thus, a load transfer path of the rail from bottom to top is formed, including the support plate 28, support plate connection bolts 29, hanger 30, pin shaft 24, trolley frame 21, running wheels 22, I-beam 11, and lifting lugs 12, and then to the crane. At the same time, because the support plate has a certain width and the load is transmitted upward through 4 running wheels 22, the purpose of improving the stability during the lifting of the frog and preventing the frog from tipping over is achieved. After the frog is lifted, if the lateral position of the frog rail 4 needs to be adjusted, the compression screw 25 can be loosened to separate the compression head 26 from the I-beam 11. After manually moving the frog rail 4 along the I-beam 11 to a suitable position, the compression screw 25 is tightened to press and fix the compression head 26 to the I-beam 11. When it moves to the end of the I-beam 11, it will be blocked by the bumper 13 to prevent rail support.

[0032] The upper end of the trolley frame is connected to the running wheels and the compression screw. The lower end is connected to the hanger through a pin shaft. The hanger is connected to the support plate through support plate connection bolts. The frog rail is carried on the support plate; the running wheels are suspended on the lower flange plate of the I-beam; the adjusting screw is connected to the trolley frames on both sides at both ends; the compression screw achieves the purpose of lateral locking by clamping the web of the I-beam. When loosened, the frog can be manually pushed laterally for lateral position adjustment.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-speed frog hanger, comprising a hanging beam, a rail lifting and running car hanger, and a rail supporting and running car hanger, characterized by: The main structure of the lifting beam is an I-beam, and there are two lifting ears at both ends above the I-beam. The lifting ears are used to connect the crane. When the lifting ears are connected to the gantry crane or the rail crane hook, independent lifting ropes of equal length are used. Two car stops are installed at both ends of the upper side of the lower flange plate of the I-beam. The car stops are used to limit the position of the rail lifting sports car hoist and the rail supporting sports car hoist during transverse movement.

2. The high-speed frog hanger according to claim 1, characterized in that: The rail lifting and running car hoist is used to connect the rear section or the front section of the frog, and includes a running car frame, a running car wheel, an adjusting screw, a clamp, and a clamp; the upper end of the running car frame is connected to the running car wheel and the clamp, and the lower end is connected to the clamp through a pin shaft; the running car wheel is suspended on the lower flange plate of the I-beam; the two ends of the adjusting screw are connected to the running car frames on both sides; the clamping screw achieves the purpose of lateral locking by clamping the web of the I-beam, and when released, manpower can push the frog laterally for lateral position adjustment.

3. The high-speed frog hanger according to claim 2, characterized in that: The head of the compression screw is provided with a compression head supported by rubber; the clamp is used for connecting the rail head of the frog rail.

4. The high-speed frog hanger according to claim 2, characterized in that: The adjusting screw is a bidirectional screw, which is used to adjust the distance between the running carriages on both sides to adapt to the connection of frog rails with different distances.

5. The high-speed frog hanger according to claim 1, characterized in that: There is a standard section rail at the front section of the frog and a standard section rail at the rear section of the frog for connecting the railway rail clamps.

6. The high-speed frog hanger according to claim 2, characterized in that: The rail-supporting sports car hanger is used to connect the frog in the middle section of the frog, and the rail-supporting sports car hanger includes a sports car frame, a sports car wheel, an adjusting screw, a pin shaft, a clamping screw, a clamping head, a support plate, a support plate connecting bolts and a hanger; the upper end of the sports car frame is connected to the sports car wheel and the clamping screw, and the lower end is connected to the hanger through the pin shaft, the hanger is connected to the support plate through the support plate connecting bolts, and the frog rail is carried on the support plate.

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