Railway steel rail web double-side grinding machine

Abstract

The invention discloses a railway steel rail web double-side grinding machine, which relates to the technical field of steel rail grinding, and is characterized by comprising a rack assembly comprising a rack; the universal elastic grinding assembly comprises symmetrical grinding wheel supporting arms, the rear ends of the symmetrical grinding wheel supporting arms are rotationally connected with the rack, the front ends of the symmetrical grinding wheel supporting arms are in bearing connection with transmission shafts, and the symmetrical transmission shafts are connected with a set of steel balls; the universal elastic grinding assembly further comprises symmetrical profiling grinding wheels, and connecting sleeves are fixedly connected into long counter bores of the symmetrical profiling grinding wheels respectively. The technical problem to be solved by the invention is to provide the double-side grinding machine for the rail web of the railway steel rail, the double-side grinding machine is suitable for various specifications of steel rails of 50kg / m-75kg / m, the rail web of the steel rail can be automatically ground and derusted, and the double-side grinding machine is high in grinding efficiency, safe, reliable, convenient to operate, rapid in racking and high in grinding precision.

Description

Technical Field

[0001] The present invention relates to the technical field of rail grinding, and more specifically, to a bilateral grinding machine for the web of railway rails. Background Art

[0002] When the railway maintenance department processes rails, it is necessary to grind and remove rust from the web of the rails. For example, before the welding process in railway laying and line maintenance operations, it is necessary to grind the web of the rails. Another example is that before welding rails using a mobile flash welding machine and before constructing a bonded insulated joint, it is necessary to complete the web grinding operation, and both sides of the web of the rails need to be ground and polished.

[0003] The grinding of the web of the rails is one of the processes with a large workload in the welding operation of the line rails. This operation mainly relied on manual hand-held electric grinders or angle grinders in the past. The required power supply needed to be provided by a generator, which was relatively bulky and inconvenient to transport. At the same time, the labor intensity of the workers was high, the operation efficiency was low, the speed was slow, the surface quality was poor, the pollution was serious, and it was time-consuming and laborious to complete. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a bilateral grinding machine for the web of railway rails, which is applicable to various specifications of rails from 50 kg / m to 75 kg / m, can realize automatic grinding and rust removal operations on the web of the rails, and has high grinding efficiency, safety and reliability, convenient operation, fast access to the track, and high grinding accuracy.

[0005] The present invention adopts the following technical solutions to achieve the invention purpose:

[0006] A bilateral grinding machine for the web of railway rails, characterized in that it includes: a frame assembly, the frame assembly includes a frame; a universal elastic grinding assembly, the universal elastic grinding assembly includes symmetric grinding wheel support arms, the rear ends of the symmetric grinding wheel support arms are respectively rotatably connected to the frame, the front ends of the symmetric grinding wheel support arms are respectively connected to a transmission shaft by bearings, and a set of steel balls are respectively connected to the symmetric transmission shafts; the universal elastic grinding assembly further includes symmetric profiling grinding wheels, connection sleeves are respectively fixedly connected in the long counterbores of the symmetric profiling grinding wheels, a set of semi-cylindrical holes and a set of hemispherical holes are respectively arranged in the symmetric connection sleeves, each semi-cylindrical hole is respectively communicated with the corresponding hemispherical hole, and each steel ball is respectively matched with the area formed by the corresponding semi-cylindrical hole and hemispherical hole; the lower ends of the long counterbores of the symmetric profiling grinding wheels are respectively provided with the upper parts of the mounting shafts, the symmetric mounting shafts are respectively fixedly connected to the corresponding connection sleeves, locking nuts are arranged in the lower mounting holes of the symmetric profiling grinding wheels, the symmetric locking nuts are respectively threadedly connected to the corresponding mounting shafts, and the symmetric mounting shafts are respectively fixedly connected to the corresponding transmission shafts by springs.

[0007] As a further limitation of the present technical solution, it further includes a power assembly. The power assembly includes a power unit. The output shaft of the power unit is connected to a driving wheel. The symmetric transmission shafts are respectively fixedly connected to power wheels. The frame is detachably fixedly connected to symmetric tensioner seats. The symmetric tensioner seats are respectively connected to tensioning wheels through bearings.

[0008] As a further limitation of the present technical solution, it further includes a separating and clamping device. The separating and clamping device includes symmetric separating and clamping device handles. The symmetric separating and clamping device handles are respectively rotatably connected to the frame. The symmetric separating and clamping device handles are respectively fixedly connected to separators. The symmetric separators are matched with the symmetric grinding wheel support arms.

[0009] As a further limitation of the present technical solution, it further includes a feed adjusting device. The feed adjusting device includes symmetric adjusting seats. The symmetric adjusting seats are respectively fixedly connected to the frame. The symmetric adjusting seats are respectively fixedly connected to lead screw motors. The leadscrews of the symmetric lead screw motors are respectively fixedly connected to push plates. The symmetric push plates are matched with the symmetric grinding wheel support arms.

[0010] As a further limitation of the present technical solution, the frame is fixedly connected to symmetric T-pin shafts. A belt protection cover is arranged on the upper side of the frame. The belt protection cover is provided with symmetric adjusting holes. The symmetric T-pin shafts are respectively arranged in the corresponding adjusting holes. The belt protection cover is provided with handle grooves corresponding to the symmetric separating and clamping device handles.

[0011] As a further limitation of the present technical solution, the frame is connected to a rear traveling wheel through a bearing. The frame is fixedly connected to a U-shaped seat. The U-shaped seat is connected to a front traveling wheel through a bearing.

[0012] As a further limitation of the present technical solution, the frame is detachably fixedly connected to two symmetric guiding and positioning wheel seats. Each guiding and positioning wheel seat is respectively connected to a guiding and positioning wheel through a bearing.

[0013] As a further limitation of the present technical solution, the symmetric grinding wheel support arms are fixedly connected to grinding wheel protection covers corresponding to the corresponding profiling grinding wheels.

[0014] As a further limitation of the present technical solution, the frame is fixedly connected to an operating handle.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are:

[0016] The present invention has high efficiency and high precision. The overall structure is simple, light in weight, and convenient for operators to operate, greatly improving the convenience and flexibility of the rail waist grinding machine, effectively reducing the labor intensity and personal safety of the operator, changing the slow speed and high labor intensity of using an angle grinder for rail waist grinding in the past, and improving the operation stability and the precision of rail waist grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic three-dimensional structure of the present invention Figure 1 .

[0018] Figure 2 is a schematic three-dimensional structure of the present invention Figure 2 .

[0019] Figure 3 is a schematic partial three-dimensional structure of the present invention Figure 1 .

[0020] Figure 4 is a schematic partial three-dimensional structure of the frame assembly of the present invention Figure 1 .

[0021] Figure 5 is a schematic partial three-dimensional structure of the present invention Figure 2 .

[0022] Figure 6 is a schematic partial three-dimensional structure of the present invention Figure 3 .

[0023] Figure 7 is a schematic partially cut-away three-dimensional structure of the universal elastic grinding assembly of the present invention Figure 1 .

[0024] Figure 8 is a schematic partially cut-away three-dimensional structure diagram of the connecting sleeve of the present invention.

[0025] Figure 9 is a schematic partially cut-away three-dimensional structure of the universal elastic grinding assembly of the present invention Figure 2 .

[0026] In the figure:

[0027] 1. Frame assembly, 11. Belt protective cover, 12. Handle groove, 13. Frame, 14. Operating handle, 15. Guide positioning wheel, 16. Guide positioning wheel seat, 17. Rear traveling wheel, 18. U seat, 19. Front traveling wheel, 110. Height adjustment stud, 111. Stud perforation, 112. T pin shaft, 113. Adjustment hole;

[0028] 2. Power assembly, 21. Power assembly, 22. Driving wheel, 23. Tensioning wheel, 24. Power wheel, 25. Tensioning wheel seat;

[0029] 3. Separation and clamping device, 31. Separation and clamping device handle, 32. Separator;

[0030] 4. Universal elastic grinding assembly, 41. Grinding wheel support arm, 42. Transmission shaft, 43. Profiling grinding wheel, 44. Steel ball, 45. Mounting shaft, 46. Spring, 47. Connecting sleeve, 48. Hemispherical hole, 49. Semi-cylindrical hole, 410. Grinding wheel guard, 411. Locking nut;

[0031] 5. Feed adjustment device, 51. Pusher plate, 52. Adjusting seat, 53. Lead screw motor. Specific implementation mode

[0032] The following combines with the attached drawings to describe in detail a specific implementation mode of the present invention, but it should be understood that the protection scope of the present invention is not limited by the specific implementation mode.

[0033] The present invention includes: a frame assembly 1, the frame assembly 1 includes a frame 13; a universal elastic grinding assembly 4, the universal elastic grinding assembly 4 includes symmetric grinding wheel support arms 41, the rear ends of the symmetric grinding wheel support arms 41 are respectively rotatably connected to the frame 13, the front ends of the symmetric grinding wheel support arms 41 are respectively connected to a transmission shaft 42 by bearings, and the symmetric transmission shafts 42 are respectively connected to a set of steel balls 44; the universal elastic grinding assembly 4 further includes symmetric profiling grinding wheels 43, long counterbores of the symmetric profiling grinding wheels 43 are respectively fixedly connected with connecting sleeves 47, a set of semi-cylindrical holes 49 and a set of hemispherical holes 48 are respectively arranged in the symmetric connecting sleeves 47, each semi-cylindrical hole 49 is respectively communicated with the corresponding hemispherical hole 48, and each steel ball 44 is respectively matched with the area formed by the corresponding semi-cylindrical hole 49 and the hemispherical hole 48; the lower ends of the long counterbores of the symmetric profiling grinding wheels 43 are respectively provided with the upper parts of mounting shafts 45, the symmetric mounting shafts 45 are respectively fixedly connected with the corresponding connecting sleeves 47, locking nuts 411 are arranged in the lower mounting holes of the symmetric profiling grinding wheels 43, the symmetric locking nuts 411 are respectively threadedly connected with the corresponding mounting shafts 45, and the symmetric mounting shafts 45 are respectively fixedly connected with the corresponding transmission shafts 42 through springs 46.

[0034] The profiling grinding wheel 43 is successively provided with an upper counterbore, a middle through hole and a mounting hole which are communicated with each other from top to bottom. The connecting sleeve 47 and the upper part of the mounting shaft 45 are arranged in the upper counterbore. The mounting shaft 45 is a T-shaped cylinder with a smaller diameter at the lower part, which is arranged in the middle through hole, and the locking nut 411 is an inverted T shape.

[0035] The connecting sleeve 47 is provided with three-stage through holes with gradually increasing inner diameters from top to bottom. The transmission shaft 43 passes through the uppermost through hole. The semi-cylindrical hole 49 and the hemispherical hole 48 are arranged on the side walls of the corresponding secondary through holes. The upper part of the mounting shaft 45 is arranged in the three-stage through hole.

[0036] It further includes a power assembly 2. The power assembly 2 includes a power unit 21. The output shaft of the power unit 21 is connected to the driving wheel 22. The symmetrical transmission shafts 42 are respectively fixedly connected to the power wheels 24. The frame 13 is detachably and fixedly connected to the symmetrical tensioner seats 25. The symmetrical tensioner seats 25 are respectively connected to the tensioner wheels 23 by bearings.

[0037] The power unit 21 selects an imported internal combustion engine with excellent performance as the power of this machine. A clutch assembly is installed on the output shaft of the power unit 21, which includes a clutch drum and a clutch friction plate to realize the rotation or stop of the driving wheel 22.

[0038] Two synchronous belts respectively surround the driving wheel 22 and the power wheel 24. The two tensioner wheels 23 are in contact with the synchronous belts to adjust the tightness of the synchronous belts.

[0039] It further includes a separating and clamping device 3. The separating and clamping device 3 includes symmetrical separating and clamping device handles 31. The symmetrical separating and clamping device handles 31 are respectively rotatably connected to the frame 13. The symmetrical separating and clamping device handles 31 are respectively fixedly connected to the separators 32. The symmetrical separators 32 are matched with the symmetrical grinding wheel support arms 41. To achieve rapid rail waist grinding without clamping, the separating and clamping device 3 can quickly realize the positioning of the working area of this high-efficiency and high-precision double-sided rail waist grinding machine on the rail, and realize the grinding operation on both sides of the rail waist.

[0040] It further includes a feed adjusting device 5. The feed adjusting device 5 includes symmetrical adjusting seats 52. The symmetrical adjusting seats 52 are respectively fixedly connected to the frame 13. The symmetrical adjusting seats 52 are respectively fixedly connected to lead screw motors 53. The lead screws of the symmetrical lead screw motors 53 are respectively fixedly connected to push plates 51. The symmetrical push plates 51 are matched with the symmetrical grinding wheel support arms 41. During grinding, control the lead screw motor 53 to work, so that the push plate 52 extends. After it contacts the grinding wheel support arm 41, drive the grinding wheel support arm 41 to swing inwards, so that it drives the profiling grinding wheel 43 to contact the rail waist.

[0041] The symmetrical grinding wheel support arms 41 are fixedly connected to grinding wheel guards 410 corresponding to the corresponding profiling grinding wheels 43.

[0042] The frame 13 is fixedly connected to an operating handle 14.

[0043] To solve the problem of the need for a generator for on-site power without a power source, the power assembly 21 selects an imported internal combustion engine with excellent performance (or a DC motor powered by a lithium battery) as the power of the machine.

[0044] The working process of the present invention is as follows.

[0045] The power assembly 21 (using an internal combustion engine / drive motor) drives the clutch to rotate, the clutch drives the driving wheel 22 to rotate, the driving pulley drives the power wheel 24 to rotate through the synchronous belt, thereby driving the transmission shaft 42 to rotate, the transmission shaft 42 drives the steel ball 44 to rotate, and the steel ball 44 drives the connecting sleeve 47 to rotate, thereby driving the driving spring 46, the mounting shaft 45, the locking nut 411 and the profiling grinding wheel 43 to rotate at high speed, so as to grind the rail web.

[0046] To achieve rapid rail web grinding without clamping, the separation and clamping device 3 can quickly position the operation area of the high-efficiency and high-precision double-sided rail web grinding machine on the rail, and realize the grinding operation on both sides of the rail web. By swinging the handle 31 of the separation and clamping device, the separator 32 is driven to swing. After the separator 32 contacts the grinding wheel support arm 41, the grinding wheel support arm 41 is driven to swing outward, so that it drives the profiling grinding wheel 43 away from the rail web. During grinding, the lead screw motor 53 is controlled to work, so that the push plate 52 extends. After it contacts the grinding wheel support arm 41, the grinding wheel support arm 41 is driven to swing inward, so that it drives the profiling grinding wheel 43 to contact the rail web.

[0047] To achieve high-quality and rapid grinding of the rail web, the elastic grinding head is designed as a universal elastic coupling structure, which can automatically adjust the contact with the arc surface of the rail web, so as to realize the full coverage of the grinding wheel on the rail web, make the grinding operation more stable and rapid, and the grinding effect is better. By setting the spring 46, the profiling grinding wheel 43 can move along the length direction of the rail to realize "automatically adjusting the contact between the profiling grinding wheel 43 and the arc surface of the rail web".

[0048] To achieve power transmission in a narrow space, the power wheels 24 are respectively installed on the transmission shafts 42 of the grinding wheel support arms 41, and there is a tensioning wheel 23 to always ensure the tightness of the synchronous belt, so as to better conduct kinetic energy, that is, realize the flexible rotation of the grinding wheel support arm 41 and the transmission of power.

[0049] Embodiment 2: This embodiment further elaborates on the basis of Embodiment 1. The frame 13 is connected to the rear running wheel 17 through a bearing, the frame 13 is fixedly connected to the U-shaped seat 18, and the U-shaped seat 18 is connected to the front running wheel 19 through a bearing. The whole machine can be pushed and pulled on the rail through the running wheels.

[0050] The frame 13 is detachably and fixedly connected to two symmetrically arranged guiding and positioning wheel seats 16, and each guiding and positioning wheel seat 16 is respectively connected to a guiding and positioning wheel 15 through a bearing.

[0051] To solve the handling problem of changing the work site after the operation, this double-sided rail web grinding machine with high grinding precision can push and pull on the rail surface, so as to quickly reach the next operation construction site.

[0052] Embodiment 3: This embodiment is further elaborated on the basis of Embodiment 1 or 2. The frame 13 is fixedly connected with symmetric T-shaped pin shafts 112. A belt protection cover 11 is arranged on the upper side of the frame 13. The belt protection cover 11 is provided with symmetric adjustment holes 113. The symmetric T-shaped pin shafts 112 are respectively arranged in the corresponding adjustment holes 113. The belt protection cover 11 is provided with handle grooves 12 corresponding to the symmetric separation and clamping device handles 31.

[0053] The U-shaped seat 18 is fixedly connected with a height adjustment stud 110. The belt protection cover 11 is provided with a stud through hole 111 corresponding to the height adjustment stud 110. The height adjustment stud 110 is respectively threadedly connected with fixing nuts on both sides of the belt protection cover 11.

[0054] The specific embodiments of the present invention disclosed above are only for illustration. However, the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A double-sided grinding machine for the web of railway rails, characterized in that, Comprising: A frame assembly (1), the frame assembly (1) including a frame (13); A universal elastic grinding assembly (4), the universal elastic grinding assembly (4) including symmetrical grinding wheel support arms (41), the rear ends of the symmetrical grinding wheel support arms (41) being respectively rotatably connected to the frame (13), the front ends of the symmetrical grinding wheel support arms (41) being respectively connected to a transmission shaft (42) by bearings, and a set of steel balls (44) being respectively connected to the symmetrical transmission shafts (42); The universal elastic grinding assembly (4) further includes symmetrical profiling grinding wheels (43), connection sleeves (47) being respectively fixedly connected in the long counterbores of the symmetrical profiling grinding wheels (43), a set of semi-cylindrical holes (49) and a set of hemispherical holes (48) being respectively arranged in the symmetrical connection sleeves (47), each semi-cylindrical hole (49) being respectively communicated with the corresponding hemispherical hole (48), and each steel ball (44) being respectively matched within the region formed by the corresponding semi-cylindrical hole (49) and hemispherical hole (48); The upper parts of mounting shafts (45) are respectively arranged at the lower ends of the long counterbores of the symmetrical profiling grinding wheels (43), the symmetrical mounting shafts (45) being respectively fixedly connected to the corresponding connection sleeves (47), locking nuts (411) being arranged in the lower mounting holes of the symmetrical profiling grinding wheels (43), the symmetrical locking nuts (411) being respectively threadedly connected to the corresponding mounting shafts (45), and the symmetrical mounting shafts (45) being respectively fixedly connected to the corresponding transmission shafts (42) by springs (46).

2. The double-sided grinding machine for the web of railway rails according to claim 1, wherein: It further includes a power assembly (2), the power assembly (2) including a power unit (21), the output shaft of the power unit (21) being connected to a driving wheel (22), the symmetrical transmission shafts (42) being respectively fixedly connected to power wheels (24), the frame (13) being detachably fixedly connected to symmetrical tensioner seats (25), and the symmetrical tensioner seats (25) being respectively connected to tensioning wheels (23) by bearings.

3. The double-sided grinding machine for the rail waist of railway rails according to claim 2, wherein: It further includes a separating and clamping device (3), the separating and clamping device (3) including symmetrical separating and clamping device handles (31), the symmetrical separating and clamping device handles (31) being respectively rotatably connected to the frame (13), the symmetrical separating and clamping device handles (31) being respectively fixedly connected to separators (32), and the symmetrical separators (32) being matched with the symmetrical grinding wheel support arms (41).

4. The double-sided grinder for the rail waist of railway rails according to claim 3, wherein: It further includes a feed adjustment device (5), the feed adjustment device (5) including symmetrical adjustment seats (52), the symmetrical adjustment seats (52) being respectively fixedly connected to the frame (13), the symmetrical adjustment seats (52) being respectively fixedly connected to lead screw motors (53), the lead screws of the symmetrical lead screw motors (53) being respectively fixedly connected to push plates (51), and the symmetrical push plates (51) being matched with the symmetrical grinding wheel support arms (41).

5. The double-sided grinding machine for the rail waist of railway rails according to claim 3, characterized in that: The frame (13) is fixedly connected to symmetric T-shaped pin shafts (112). A belt protection cover (11) is arranged on the upper side of the frame (13). The belt protection cover (11) is provided with symmetric adjustment holes (113). The symmetric T-shaped pin shafts (112) are respectively arranged in the corresponding adjustment holes (113). The belt protection cover (11) is provided with handle grooves (12) corresponding to the symmetric separating and clamping device handles (31).

6. The double-sided grinding machine for the web of railway rails according to claim 1, characterized in that: The frame (13) is connected to the rear traveling wheels (17) through bearings. The frame (13) is fixedly connected to a U-shaped seat (18). The U-shaped seat (18) is connected to the front traveling wheels (19) through bearings.

7. The double-side grinding machine for the rail waist of railway rails according to claim 1, wherein: The frame (13) is detachably and fixedly connected to two symmetric guide and positioning wheel seats (16). Each guide and positioning wheel seat (16) is respectively connected to a guide and positioning wheel (15) through a bearing.

8. The double-sided grinding machine for the web of railway rails according to claim 1, characterized in that: The symmetric grinding wheel support arms (41) are fixedly connected to grinding wheel protection covers (410) corresponding to the respective profiling grinding wheels (43).

9. The double-sided grinding machine for the web of railway rails according to claim 1, characterized in that: The frame (13) is fixedly connected to an operating handle (14).

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