Groove-type wear-resistant guard rail twisting machine for railway turnout

Abstract

The invention relates to a railway track machining technology, and aims to provide a groove-type wear-resistant guard rail twisting machine for a railway turnout. Comprising a lathe bed part, a rail twisting power head part, a machine leg part, a movable tailstock part, a roller part and a hydraulic system. Wherein the torsion rail power head component comprises a hollow cylindrical torsion rail power head, and two bearings are embedded in the outer edges of the two ends of the torsion rail power head respectively and located in bearing seats respectively; a pair of mounting lugs is symmetrically arranged on each of the two sides of the tray rack assembly, a pair of mounting lugs is arranged on each of the opposite sides of the axial horizontal plane of the torsion rail power head, and two vertical and symmetrical hydraulic oil cylinder mounting positions are formed; the axial direction of the torsion rail power head is parallel to the lathe bed part, and movable jaws are filled in the two sides of the inner cavity of the torsion rail power head and used for clamping the groove-shaped wear-resistant guard rail; the guard rail is twisted through forward and reverse rotation movement with the center of the end face of the groove-shaped wear-resistant guard rail as the reference axis, the quality problem of distortion of the guard rail mounting base plane can be solved, and the distorted mounting base plane can be corrected.

Description

Technical Field

[0001] The invention relates to railway track processing technology, in particular to a groove-type wear-resistant rail guard and twisting machine for railway turnouts. Background Art

[0002] Grooved wear-resistant guardrail is a part made of grooved steel guardrail and wear-resistant alloy steel bar welded together. It is an essential accessory for railway turnout products (such as Figure 1 This product is used in railway turnouts to control the movement direction of train wheels, so that the wheels can pass through harmful spaces normally without entering the wheel flange grooves, and to protect the tip of the frog from being hit by the wheels. It is a must-have turnout accessory.

[0003] The wear-resistant guardrail is made of groove steel guardrail and wear-resistant alloy steel bar spliced ​​and submerged arc welded. After high-temperature welding, the welding rod filling the groove weld is fused with the groove steel and alloy steel bar into one. After rapid cooling, the weld shrinkage stress is extremely large. Moreover, the wear-resistant alloy steel bar is only welded in one corner of the entire groove steel guardrail and has two long welds (see Figure 1 ), in addition, the grooved steel guardrail itself may have a distortion of the installation base before processing (see Figure 2 ), which causes the shrinkage, deformation and distortion of the product to become more serious. Therefore, it is necessary to use straightening and correction equipment to process the semi-finished products after welding to ensure that the straightness and flatness of the product meet the technical requirements.

[0004] At present, the straightening machine used to correct the groove wear-resistant guardrail usually adopts local hydraulic bending operation. This kind of process is difficult to solve the problem of distortion of the installation base surface. Therefore, it is impossible to correct the severely distorted groove wear-resistant guardrail while maintaining the reference axis. If the correction operation is forced, the internal stress of the material will be concentrated in a certain part, causing product damage. Once it is impacted by gravity load during use, it will cause the guardrail to break, resulting in traffic safety accidents.

[0005] The deformation of profiles and guardrails after submerged arc welding will produce twisting and twisting, which seriously affects product quality, and it is difficult to completely correct it with existing ordinary top bending and straightening machines. Therefore, in order to improve the process flow and meet the technical quality requirements, it is necessary to propose a new solution to solve the above problems. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a grooved wear-resistant rail guard and twisting machine for railway turnouts.

[0007] In order to solve the above technical problems, the solution adopted by the present invention is:

[0008] Provided is a grooved wear-resistant rail guard and rail twisting machine for railway turnouts, comprising a bed component, a rail twisting power head component, a machine foot component, a movable tailstock component, a roller component and a hydraulic system; wherein,

[0009] The bed part is a long supporting structure, and its two ends are respectively connected to the torsion rail power head part and the movable tailstock part; the machine foot part is installed at the bottom of the bed part, and the roller part is installed above the bed part;

[0010] The machine foot component includes at least one group of machine feet, and an upper connecting rod and a lower connecting rod perpendicular to the bed component are arranged between the machine feet in the same group, and the upper connecting rod and the bed component are fastened and installed by connecting the screw assembly;

[0011] The rail-torsion power head component comprises a hollow cylindrical rail-torsion power head, and a bearing is respectively embedded in the outer edges of both ends of the rail-torsion power head, and the two bearings are respectively located in the bearing seats; the bearing seats, the bed components and the pallet frame assembly are arranged in sequence from top to bottom, and are fastened and installed by connecting the screw assembly; a pair of mounting lugs are symmetrically arranged on both sides of the pallet frame assembly, and a pair of mounting lugs are respectively arranged on the opposite sides of the axial horizontal plane of the rail-torsion power head, so as to form two vertical and symmetrical hydraulic cylinder installation positions; the axial direction of the rail-torsion power head is kept parallel to the bed component, and movable jaws are filled on both sides of the inner space thereof for clamping the groove-type wear-resistant guard rail;

[0012] The movable tailstock component comprises an open pressing plate arranged on the tailstock, the open pressing plate is hollow inside and open at the top, and movable jaws are installed on both sides of the inner hollow to clamp the groove-shaped wear-resistant guardrail; the tailstock is perpendicular to the bed component, and a pair of C-shaped locking devices are provided on both sides of the tailstock to fix the movable tailstock component at a selected position of the bed component;

[0013] The roller component comprises a strip-shaped support seat perpendicular to the bed body component, in the middle of which a roller assembly is arranged; the roller assembly comprises a mounting seat and a roller, the mounting seat is fixed to the upper part of the support seat, and the roller is movably mounted in the mounting seat and parallel to the support seat; the upper edge of the roller is on the same horizontal plane as the lower edge of the inner space of the torsion rail power head and the lower edge of the inner space of the open pressure plate; a pair of C-shaped locking devices are arranged on both sides of the strip-shaped support seat, respectively, for fixing the roller component at a selected position of the bed body component; there are multiple groups of roller components and they are arranged alternately;

[0014] The hydraulic system comprises two double-acting hydraulic cylinders, a hydraulic station, a hydraulic oil circuit and a reversing valve; the two hydraulic cylinders are respectively located in two hydraulic cylinder installation positions in the torsion rail power head component and are installed in a hinged shaft connection manner.

[0015] As an improved solution, the bed component is composed of multiple I-shaped rails arranged in parallel, with the rail head facing downward and the rail bottom facing upward, and the bottom of each rail is on the same horizontal plane; multiple connection points are arranged alternately in the length direction of the rails, and spacer irons are arranged between adjacent rails at the connection points to connect the screw assembly and the washer to achieve fastening installation.

[0016] As an improved solution, the connecting screw assembly also includes a connecting pressure plate, and the upper nut and the connecting pressure plate are located between the rail heads of two adjacent rails in the bed component, so that the connecting pressure plate serves as a force-bearing part for screw installation between the adjacent rail heads.

[0017] As an improved solution, the machine foot component includes multiple sets of machine feet, and horizontal connecting rods are provided between adjacent machine feet on the same side.

[0018] As an improved solution, the torsion rail power head component also includes a screw-on oil cup arranged on the top of the bearing seat.

[0019] As an improved solution, there are two groups of pallet frame assemblies with the same structure, both of which include pallet frames, machine legs, C-shaped steel pads and connecting screw assemblies; wherein the pallet frame is in the shape of a horizontal plate, and the machine legs are fixed to the bottom by welding; there are two C-shaped steel pads, which are placed at the edge of the upper side of the pallet frame with the middle surface facing outward, and the bed body is placed on the upper side thereof perpendicular to the C-shaped steel pads; the two ends of the connecting screw assembly are respectively fastened to the bearing seat bottom plate and the pallet frame with nuts, and the bed body and the C-shaped steel pads are clamped at the same time; a mounting ear is fixed to the middle surface of adjacent C-shaped steel pads of the two groups of pallet frame assemblies with screws respectively; at the same time, multiple groups of pins or bolt assemblies are penetrated through adjacent C-shaped steel pads and mounting ears to achieve a stable connection between the two groups of pallet frame assemblies.

[0020] As an improved solution, the movable tailstock component also includes a rolling mechanism arranged below the tailstock; the rolling mechanism is composed of two strip retaining frames and a plurality of parallel arranged equal-diameter cylinders, the two ends of the cylinders are stepped and extend into the mounting holes on the retaining frames, and the retaining frames are fixedly mounted on the bottom of the tailstock.

[0021] As an improved solution, as an improved solution, the C-shaped locking device includes a C-shaped locking structure and two locking screws; the upper edge and the lower edge of the locking structure are located on the same side of the vertical body, one locking screw vertically penetrates the upper edge, and the other locking screw horizontally penetrates the middle of the locking structure.

[0022] As an improved solution, a long safety shield is provided between the torsion rail power head component and the movable tailstock component, and its cross-section is gate-shaped; the bottom of the side of the safety shield is fixed on a fixed rod, and there are multiple fixed rods that are arranged alternately; a fixed bayonet structure is provided at one end of the fixed rod, and a movable bayonet structure is provided at the other end, which is used to fix the fixed rod at a selected position of the bed component.

[0023] As an improved solution, as an improved solution, the hydraulic system also includes components such as a pressure gauge switch, a pressure gauge, a relief valve, a plunger pump assembly, an air filter and an oil tank; the reversing valve is a manual M-type three-position four-way reversing valve; the hydraulic cylinder is a hinged shaft type double-acting cylinder, a hinged shaft is installed in the middle of the cylinder, and the oil pipeline adopts an X-type synchronous connection method.

[0024] Compared with the prior art, the technical effects of the present invention are:

[0025] 1. The grooved wear-resistant guardrail twisting machine of the present invention uses the center of the end face of the grooved wear-resistant guardrail as the reference axis and twists the guardrail through positive and negative rotation movements; therefore, compared with the prior art, the present invention can solve the quality problem of the distortion of the guardrail installation base surface and correct the distorted installation base surface.

[0026] 2. The present invention adopts multiple sets of roller components to form a rolling track, which is convenient for the forward and backward movement operation on the rail twisting machine after the guardrail is hoisted; it eliminates the need to use a crane for frequent hoisting and moving, greatly reduces the labor intensity of on-site workers, and improves production efficiency.

[0027] 3. When correcting the wear-resistant guard rail and torsion rail, the force is evenly distributed without causing hard scratches, thus ensuring reliable product quality;

[0028] 4. The protective cover has a reasonable structure design and is easy and stable to fix, ensuring the safety of the operators;

[0029] 5. The hydraulic system uses M-type manual valve to reduce power loss, lower hydraulic oil temperature, reduce mechanical wear and increase the service life of seals. It is easy to operate and runs smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of a grooved wear-resistant guardrail.

[0031] Figure 2 Schematic diagram of the distortion of the mounting base surface of the grooved wear-resistant guardrail.

[0032] Figure 3 It is a schematic structural diagram of the rail twisting machine described in the present invention.

[0033] Figure 4 for Figure 3 Top view of the medium rail twisting machine.

[0034] Figure 5 for Figure 3 Cross-sectional view along the AA direction.

[0035] Figure 6 for Figure 3 Cross-sectional view along the BB direction.

[0036] Figure 7 for Figure 4 Cross-sectional view along CC direction.

[0037] Figure 8 It is a structural schematic diagram of the torsion rail power head components.

[0038] Fig. 9 It is a structural diagram of the bed components.

[0039] Fig.10 It is a structural schematic diagram of the movable tailstock component.

[0040] Fig.11 It is a schematic diagram of the structure of the machine foot components.

[0041] Fig.12 It is a structural schematic diagram of the roller component.

[0042] Fig.13 It is a schematic diagram of the structure of the safety shield.

[0043] Fig.14 Schematic diagram of the hydraulic system.

[0044] The reference numerals in the figure are: grooved steel guard rail 1; wear-resistant alloy steel bar 2; mounting base 3; grooved wear-resistant guard rail 4; torsion rail power head component 5; bed component 6; movable tailstock component 7; machine foot component 8; roller component 9; safety protection cover 10; torsion rail power head 11; connecting screw assembly 12; movable jaw 13; mounting ear piece 14; hinge shaft 15; tray frame 16; steel rail 17; spacer iron 18; washer 19; connecting screw assembly 2 0; opening plate 21; movable jaw 22; C-shaped locking device 23; rolling mechanism 24; machine foot 25; connecting plate 26; connecting screw assembly 27; roller 28; support seat 29; hydraulic cylinder 30; hydraulic station 31; hydraulic oil system 32; fixing rod 33; bearing seat 34; oil cup 35; tray frame 36; mounting ear piece 37; C-shaped steel pad 38; tailstock 39; retaining frame 40; cylinder 41; mounting seat 42. DETAILED DESCRIPTION

[0045] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.

[0046] 1. Structural description of groove wear-resistant rail guard and rail twisting machine

[0047] like Figure 3-7 As shown, the grooved wear-resistant rail guard and twisting machine for railway turnouts of the present invention comprises: a rail power head component 5, a bed component 6, a movable tailstock component 7, a twisting machine foot component 8, a roller component 9, a safety protection cover 10 and a hydraulic system.

[0048] Figure 8 It is a schematic diagram of the structure of the rail torsion power head component 5, in which the upper left is a side view, the lower left is a top view, and the upper right and lower right are cross-sectional views in different positions and directions. As shown in the figure, the rail torsion power head component 5 includes a hollow cylindrical rail torsion power head 11, and the outer edges of both ends are respectively embedded with a bearing, and the two bearings are respectively located in the bearing seat 34; the top of the bearing seat 34 is arranged with a screw-covered oil cup 35. The bearing seat 34, the bed component 6 and the pallet frame assembly are arranged in sequence from top to bottom, and are fastened and installed by connecting the screw assembly 12; a pair of mounting ears 37 are symmetrically arranged on both sides of the pallet frame assembly, and a pair of mounting ears 37 are arranged on the opposite sides of the axial horizontal plane of the rail torsion power head 11, forming two vertical and symmetrical hydraulic cylinder installation positions. The axial direction of the rail torsion power head 11 is kept parallel to the bed component 6, and movable jaws 13 are filled on both sides of its inner space for clamping the groove-type wear-resistant guardrail 4.

[0049] There are two groups of pallet frame assemblies with the same structure, both of which include a pallet frame 36, a machine leg 16, a C-shaped steel pad 38 and a connecting screw assembly 12; wherein the pallet frame 36 is in the shape of a horizontal plate, and the machine leg 16 is fixed to the bottom by welding; there are two C-shaped steel pads 38, which are placed upright at the edge of the upper side of the pallet frame 36 with the middle surface facing outward and opposite to each other, and the bed part 6 is placed on the upper side thereof perpendicular to the C-shaped steel pad 38; the two ends of the connecting screw assembly 12 are respectively fastened to the bottom plate of the bearing seat 34 and the pallet frame 36 with nuts, and the bed part 6 and the C-shaped steel pad 38 are clamped at the same time; on the middle surface of the adjacent C-shaped steel pads 38 of the two groups of pallet frame assemblies, a mounting ear piece 37 is respectively fixed with a screw; at the same time, a plurality of groups of pins or bolt assemblies are penetrated through the adjacent C-shaped steel pads 38 and the mounting ear pieces 37 to achieve a stable connection between the two groups of pallet frame assemblies.

[0050] The design of the torsion rail power head component 5 has the following features: (1) The two ends of the torsion rail power head 11 are clamped and fixed on the bed component 6 together with the pallet frame 36 through the bearing seat 34, which is suitable for the operation of twisting the guard rail to correct the flatness; (2) The movable jaws 22 in the torsion rail power head 11 play the role of fixing the guard rail, which is convenient for the installation of the grooved wear-resistant guard rail 4 and the subsequent maintenance operations; (3) The pallet frame 36 is placed under the bed component 6, and a plurality of connecting screw rod assemblies 12 composed of long bolts and nuts clamp the bearing seat 34 on the bed component 6; (4) In the integrated torsion rail power head component 5, the upper and lower four ear holes are used to install two hinge shafts to connect the double-acting cylinder as the driving element; (5) The machine legs at the bottom of the pallet frame 16 are used to support and fix the bed component 6.

[0051] Fig. 9 The schematic diagram of the structure of the bed body part is shown in FIG. 6 , in which the upper part is a side view, the middle part is a top view, and the lower left and lower right parts are cross-sectional views in different positions and directions. As shown in the figure, the bed body part 6 is a long supporting structure, and its two ends are respectively connected to the torsion rail power head part 5 and the movable tailstock part 7; the machine foot part 8 is installed at the bottom of the bed body part 6, and the roller part is installed above the bed body part 6.

[0052] The bed component 6 can be a solid casting plate structure or a plurality of long castings. In this example, the most common I-shaped rail in the rail processing industry is used as the main component of the bed component 6. Fig. 9 As shown, the bed component 6 is composed of a plurality of I-shaped steel rails arranged in parallel, with the rail head facing downward and the rail bottom facing upward; the rail bottoms of each rail are on the same horizontal plane, so that the bed component 6 can be easily clamped in the torsion rail power head component 5 and the movable tailstock component 7. Multiple connection points are arranged alternately in the length direction of the rails, and spacer irons are arranged between adjacent rails at the connection points to connect the screw assembly and the washer to achieve a fastened installation. The I-shaped steel rail can use factory discarded leftovers or waste products, because of its good rigidity, high strength, and good comprehensive mechanical properties. When carrying a groove-type wear-resistant guardrail, it can withstand the rotational torque during the torsion rail correction; at the same time, the bed table is also a reference plane, which can be used to measure the flatness of the guardrail, and the edge of the rail bottom extending outward can be used to flexibly clamp and fix other components.

[0053] Fig.10It is a schematic diagram of the structure of the movable tailstock component 7, in which the upper left is the main view, the lower left is the top view, the upper right is the left view, and the lower right is the rolling mechanism. As shown in the figure, the movable tailstock component 7 includes an open pressure plate 21 arranged on the tailstock 39, the open pressure plate 21 is hollow inside and open at the top, and movable jaws 22 are filled on both sides of the inner hollow to clamp the groove-shaped wear-resistant guardrail 4; the tailstock 39 is perpendicular to the bed component 6, and a pair of C-shaped locking devices 23 are provided on both sides of the tailstock 39 to fix the movable tailstock component 7 at the selected position of the bed component 6. The movable tailstock component 7 also includes a rolling mechanism 24 arranged below the tailstock 39. The rolling mechanism 24 is composed of two strip retainers 40 and a plurality of parallel-arranged equal-diameter cylinders 41. The two ends of the cylinders 41 are stepped and extend into the mounting holes on the retainer 40. The retainer 40 is fixedly mounted at the bottom of the tailstock 39. The C-shaped locking device 23 includes a C-shaped locking structure and two locking screws; the upper edge and the lower edge of the locking structure are both located on the same side of the vertical body, one locking screw vertically penetrates the upper edge, and the other locking screw horizontally penetrates the middle of the locking structure.

[0054] The design of the movable tailstock component 7 has the following features: (1) An opening is provided on the upper portion of the open pressure plate 21 to facilitate the lifting and placement of the guardrail; (2) The movable jaws 22 can be easily inserted into the square hole of the open pressure plate 21 to position and fix the twisting point; (3) The cylinder 41 in the rolling mechanism can roll freely in the retaining frame 40 to act as a rolling bearing; (4) The C-shaped locking device 23, under the action of the locking screw, holds the bed component 6, fixes the tailstock 39 and bears the torque load.

[0055] Fig.11 The figure is a schematic diagram of the structure of the machine foot component 8, in which the left side view is a side view and the right side view is a cross-sectional view. As shown in the figure, the machine foot component 8 includes multiple groups of machine feet 25, and horizontal connecting rods are arranged between the machine feet 25 of adjacent groups on the same side. Upper connecting rods and lower connecting rods perpendicular to the bed component are arranged between the machine feet 25 of the same group, and the upper connecting rods and the bed component 6 are fastened and installed by connecting screw rod components 27. The connecting screw rod components 27 also include a connecting pressure plate 26, and the upper nut and the connecting pressure plate 26 are located between the rail heads of two adjacent steel rails in the bed component 6, so that the connecting pressure plate 26 is used as the force-bearing part of the screw installation between the adjacent rail heads. Figure 8 The four rectangular holes on the table top of the middle bed component 6 are process holes for placing upper nuts and connecting the pressing plate 26.

[0056] Fig.12It is a schematic diagram of the structure of the roller component 9, in which the upper part is the main view and the lower part is the top view. As shown in the figure, the roller component 9 includes a strip support seat 29 perpendicular to the bed body component 6, and a roller assembly is arranged in the middle thereof; the roller assembly includes a mounting seat 42 and a roller 28, the mounting seat 42 is fixed to the upper part of the support seat 29, and the roller 28 is movably mounted in the mounting seat 42 and parallel to the support seat 29; the upper edge of the roller 28 is on the same horizontal plane as the lower edge of the inner space of the twist rail power head 11 and the lower edge of the inner space of the open pressure plate 21. A pair of C-shaped locking devices 23 are arranged on both sides of the support seat 29, which are used to fix the roller component 9 at the selected position of the bed body component 6. Multiple roller components 9 can be placed in corresponding positions and adjusted in time according to actual needs, which is convenient for hoisting, placing and moving the guardrail, saving time and effort, and improving work efficiency.

[0057] Fig.13 The schematic diagram of the structure of the safety shield 10 is shown in the figure, in which the left side is the main view and the right side is the cross-sectional view. As shown in the figure, the safety shield 10 is arranged between the torsion rail power head component 5 and the movable tailstock component 7, and the overall shape is long and the cross-section is gate-shaped. The bottom of the side of the safety shield 10 is fixed on the fixed rod 33, and there are multiple fixed rods 33 arranged alternately, one end of which is provided with a fixed bayonet structure and the other end is provided with a movable bayonet structure, which is used to fix the fixed rod 33 at the selected position of the bed component.

[0058] Fig.14 It is a schematic diagram of the hydraulic system, in which the left side is a schematic diagram of the connection between the oil cylinder and the hydraulic station, and the right side is a hydraulic oil circuit system 32. The hydraulic system includes two hinged shaft double-acting oil cylinders 30, which are respectively located in the two hydraulic oil cylinder installation positions in the torsion rail power head component 5. A hinged shaft 15 is installed in the middle of the oil cylinder for connecting the hole position on the installation ear piece 14. The oil circuit of the oil cylinder adopts an X-type synchronous connection method. The hydraulic system also includes a hydraulic station 31, hydraulic pipelines, a manual M-type three-position four-way reversing valve, a pressure gauge switch, a pressure gauge, a relief valve, a plunger pump assembly, an air filter and an oil tank.

[0059] Design features of the hydraulic system: (1) The use of a manual M-type four-way reversing valve can effectively reduce the load on the oil pump motor, reduce the temperature of the hydraulic oil, improve the transmission efficiency of the hydraulic oil, reduce mechanical wear, and save electricity resources when unloading; (2) When the system is initially running, turn on the pressure gauge switch and gradually tighten the relief valve. When the pressure value on the pressure gauge rises to the rated working pressure of the system, stop adjusting the pressure, tighten the locking nut on the relief valve, and then turn off the pressure gauge switch to ensure that the pressure gauge is not affected by pressure changes when the system is working normally, thereby extending the service life of the pressure gauge. (3) The air filter is an auxiliary component on the oil tank. It is both an oil filling port and an oil filter. When working, it is also an air filter. It can ensure that the air pressure inside and outside the oil tank is consistent, which is extremely important for the normal operation of the system. (4) The hinged shaft double-acting cylinder is designed according to the specific needs of the rail twisting machine. A hinged shaft is installed in the middle of the cylinder to lower the height of the bed platform to meet the operating needs of the staff and the cylinder stroke requirements. The two cylinder pipelines adopt X-type synchronous connection method. When the piston rod of one cylinder is pushed out, the piston rod of the other cylinder is retracted, so as to achieve synchronous driving of the rail twisting power head to rotate.

[0060] 2. Operating Instructions of Groove Wear-resistant Rail Guard and Twisting Machine

[0061] (1) Lift the grooved wear-resistant guardrail 4 onto the roller component 9 → insert the rear part of the guardrail into the upper opening of the open pressure plate 21 → determine the starting point of the twisting surface of the guardrail → push the front end of the guardrail into the central square hole of the twisting rail power head 11 → move the movable tailstock component to the starting point of the twisting surface and fix it → fill the movable jaws in the twisting rail power head 11 and the open pressure plate 21 respectively to achieve front and rear positioning.

[0062] (2) When the hydraulic system is in operation, operate the manual reversing valve. The two oil cylinders drive the power head to swing in the opposite direction of the guardrail twist until it is twisted to a certain amount. Release the manual reversing valve to automatically return to the neutral position. Pause for a few seconds to relieve stress to overcome inertial rebound. Reverse the reversing valve until the power head is released to the guardrail in a natural state. Use the work surface as a reference and the square as a measuring tool to measure the verticality of each point. Repeat the cycle until the flatness meets the technical requirements. The guardrail curved surface correction is completed.

[0063] (3) Description of the working mode of the hydraulic system: Start the oil pump motor. Under normal circumstances, the hydraulic oil flows into the M-type manual reversing valve through the P port and flows out of the T port back to the oil tank, and the hydraulic system is unloaded and running; operate the reversing valve forward or backward, the hydraulic oil is input from the P port and output from the A port (B port), and flows into the upper and lower chambers of the two cylinders. At the same time, the hydraulic oil in the other upper and lower chambers of the two cylinders is discharged, enters the reversing valve from the B port (A port), and flows back to the oil tank out of the T port to complete the power output; because the oil supply and return pipelines of the upper and lower oil chambers of the two cylinders adopt the X-type connection method, that is, one end of the oil pipe is connected to the upper chamber of the cylinder and the other end is connected to the lower chamber of the other cylinder; the two cylinders use the center of the power head as the axis, push and pull up and down at both ends of the power head to perform telescopic movements to achieve mechanical synchronization, so that the power head produces rotation and up and down swing to do work, providing sufficient rotation torque, forcing the twisted guardrail to be corrected and leveled.

Claims

1. A grooved wear-resistant rail guard and rail twisting machine for railway turnouts, characterized in that: It includes bed parts, torsion rail power head parts, machine foot parts, movable tailstock parts, roller parts and hydraulic system; among which, The bed part is a long supporting structure, and its two ends are respectively connected to the torsion rail power head part and the movable tailstock part; the machine foot part is installed at the bottom of the bed part, and the roller part is installed above the bed part; The machine foot component includes at least one group of machine feet, and an upper connecting rod and a lower connecting rod perpendicular to the bed component are arranged between the machine feet in the same group, and the upper connecting rod and the bed component are fastened and installed by connecting the screw assembly; The rail-torsion power head component comprises a hollow cylindrical rail-torsion power head, and a bearing is respectively embedded in the outer edges of both ends of the rail-torsion power head, and the two bearings are respectively located in the bearing seats; the bearing seats, the bed components and the pallet frame assembly are arranged in sequence from top to bottom, and are fastened and installed by connecting the screw assembly; a pair of mounting lugs are symmetrically arranged on both sides of the pallet frame assembly, and a pair of mounting lugs are respectively arranged on the opposite sides of the axial horizontal plane of the rail-torsion power head, so as to form two vertical and symmetrical hydraulic cylinder installation positions; the axial direction of the rail-torsion power head is kept parallel to the bed component, and movable jaws are filled on both sides of the inner space thereof for clamping the groove-type wear-resistant guard rail; The movable tailstock component comprises an open pressing plate arranged on the tailstock, the open pressing plate is hollow inside and open at the top, and movable jaws are installed on both sides of the inner hollow to clamp the groove-shaped wear-resistant guardrail; the tailstock is perpendicular to the bed component, and a pair of C-shaped locking devices are provided on both sides of the tailstock to fix the movable tailstock component at a selected position of the bed component; The roller component comprises a strip-shaped support seat perpendicular to the bed body component, in the middle of which a roller assembly is arranged; the roller assembly comprises a mounting seat and a roller, the mounting seat is fixed to the upper part of the support seat, and the roller is movably mounted in the mounting seat and parallel to the support seat; the upper edge of the roller is on the same horizontal plane as the lower edge of the inner space of the torsion rail power head and the lower edge of the inner space of the open pressure plate; a pair of C-shaped locking devices are arranged on both sides of the strip-shaped support seat, respectively, for fixing the roller component at a selected position of the bed body component; there are multiple groups of roller components and they are arranged alternately; The hydraulic system comprises two double-acting hydraulic cylinders, a hydraulic station, a hydraulic oil circuit and a reversing valve; the two hydraulic cylinders are respectively located in two hydraulic cylinder installation positions in the torsion rail power head component and are installed in a hinged shaft connection manner.

2. The grooved wear-resistant rail guard and rail twisting machine for railway turnout according to claim 1, characterized in that: The bed component is composed of a plurality of I-shaped steel rails arranged in parallel, with the rail head downward and the rail bottom upward, and the bottoms of each rail are on the same horizontal plane; a plurality of connection points are arranged alternately in the length direction of the rails, and spacer irons are arranged between adjacent rails at the connection points to connect the screw assembly and the washer to achieve fastening installation.

3. The grooved wear-resistant rail guard and rail twisting machine for railway turnout according to claim 2, characterized in that: The connecting screw rod assembly also includes a connecting pressure plate. The upper nut and the connecting pressure plate are located between the rail heads of two adjacent rails in the bed body component, and the connecting pressure plate is used as a force-bearing position for installing the screw rod between the adjacent rail heads.

4. The grooved wear-resistant rail guard and rail twisting machine for railway turnout according to claim 1, characterized in that: The machine foot components include multiple sets of machine feet, and horizontal connecting rods are arranged between adjacent machine feet on the same side.

5. The grooved wear-resistant rail guard and rail twisting machine for railway turnout according to claim 1, characterized in that: The torsion rail power head component also includes a screw-on oil cup arranged on the top of the bearing seat.

6. The grooved wear-resistant rail guard and rail twisting machine for railway turnout according to claim 1, characterized in that: There are two groups of pallet frame assemblies with the same structure, both of which include pallet frames, machine legs, C-shaped steel pads and connecting screw assemblies; wherein the pallet frame is in the shape of a horizontal plate, and the machine legs are fixed to the bottom by welding; there are two C-shaped steel pads, which are placed at the edge of the upper side of the pallet frame with the middle surface facing outward, and the bed body is placed on the upper side perpendicular to the C-shaped steel pads; the two ends of the connecting screw assembly are respectively fastened to the bearing seat bottom plate and the pallet frame with nuts, and the bed body and the C-shaped steel pads are clamped at the same time; on the middle surfaces of adjacent C-shaped steel pads of the two groups of pallet frame assemblies, a mounting ear is respectively fixed with a screw; at the same time, multiple groups of pins or bolt assemblies are penetrated through adjacent C-shaped steel pads and mounting ears to achieve a stable connection between the two groups of pallet frame assemblies.

7. The grooved wear-resistant rail guard and rail twisting machine for railway turnout according to claim 1, characterized in that: The movable tailstock component also includes a rolling mechanism arranged below the tailstock; the rolling mechanism consists of two strip retaining frames and a plurality of parallel arranged equal-diameter cylinders, both ends of the cylinders are stepped and extend into the mounting holes on the retaining frames, and the retaining frames are fixedly mounted at the bottom of the tailstock.

8. The grooved wear-resistant rail guard and rail twisting machine for railway turnout according to claim 1, characterized in that: The C-shaped locking device includes a C-shaped locking structure and two locking screws; the upper edge and the lower edge of the locking structure are both located on the same side of the vertical body, one locking screw vertically penetrates the upper edge, and the other locking screw horizontally penetrates the middle of the locking structure.

9. The grooved wear-resistant rail guard and rail twisting machine for railway turnout according to claim 1, characterized in that: A long safety shield is provided between the torsion rail power head component and the movable tailstock component, and its cross section is gate-shaped; the bottom of the side of the safety shield is fixed on a fixed rod, and there are multiple fixed rods arranged alternately; a fixed bayonet structure is provided at one end of the fixed rod, and a movable bayonet structure is provided at the other end, which is used to fix the fixed rod at a selected position of the bed component.

10. The grooved wear-resistant rail guard and rail twisting machine for railway turnout according to claim 1, characterized in that: The hydraulic system also includes components such as a pressure gauge switch, a pressure gauge, a relief valve, a plunger pump assembly, an air filter and an oil tank; the reversing valve is a manual M-type three-position four-way reversing valve; the hydraulic cylinder is a hinged shaft type double-acting cylinder, with a hinged shaft installed in the middle of the cylinder, and the oil pipeline adopts an X-type synchronous connection method.

Images