Grinding mechanism and steel rail grinding equipment

Abstract

The invention provides a grinding mechanism and steel rail grinding equipment, relates to the field of steel rail equipment, and solves the technical problem of low working efficiency of a grinding mechanism of the steel rail grinding equipment. The grinding mechanism comprises a mounting frame, a moving frame, a grinding head and a grinding head lifting driving device, the mounting frame can transversely move on the vehicle body, and the grinding head lifting driving device is in driving connection with the moving frame and used for driving the moving frame to ascend and descend on the mounting frame in the direction inclined to the vertical face; and the grinding head is rotationally connected with the moving frame and is obliquely arranged relative to the vertical plane, so that a grinding tip easy to self-sharpen is formed at the bottom end of the grinding head. The polishing head is rotationally connected to the inclined moving frame, and the influence on the polishing speed and the polishing power is reduced through the lifting mode that the polishing head synchronously ascends and descends along with the moving frame; the arc-shaped surface formed after self-sharpening on the grinding head can be matched with the profile of the steel rail, profiling grinding is achieved, the profile of the ground steel rail is smooth in transition, and a continuous small section formed after traditional cup-shaped grinding is not formed any more.

Description

Technical Field

[0001] The present invention relates to the technical field of rail equipment, and in particular to a grinding mechanism and a rail grinding equipment. Background Art

[0002] A rail grinding vehicle includes a grinding mechanism. The grinding mechanism includes a vertical driving mechanism and a grinding head. The vertical driving mechanism is used to drive the vertical movement of the grinding head, so as to realize the lifting of the grinding head and the control of the grinding power. An additional lateral driving mechanism is also required. The lateral driving mechanism is used to drive the lateral movement of the grinding head, adjust the contact surface between the grinding stone and the rail profile, and the driving force of the grinding vehicle provides longitudinal power and movement, so as to realize the grinding of the grinding head on the track surface.

[0003] In the prior art, the vertical driving mechanism drives the vertical lifting of the grinding head. The lifting of the grinding head adopts a hinge mechanism. The advantage is that the contact area at the hinge is small, the sensitivity to dust is extremely low, and it hardly jams.

[0004] The applicant of the present invention has found that the prior art has at least the following technical problems: on the one hand, when the grinding head grinds the curved surface of the track, since the grinding head moves vertically, the center of the bottom end of the grinding head always contacts the track surface, and the grinding head contacts the curved surface line of the track, resulting in low grinding efficiency. On the other hand, the grinding head uses a flat wheel (or rolling bearing) placed on the steel plate, and a traction rod is installed on the side of the grinding head to provide the longitudinal traction force of the rail for the grinding head. However, in order to provide freedom for the lateral movement, the end of the traction rod can only be fixed by a spherical bearing, which limits the grinding speed and grinding power of the curved surface grinding device. Therefore, the grinding efficiency of the grinding mechanism in the prior art is low. Summary of the Invention

[0005] The purpose of the present invention is to provide a grinding mechanism and a rail grinding equipment to solve the technical problem of low working efficiency of the grinding mechanism of the rail grinding equipment in the prior art. The preferred technical solutions provided by the present invention can produce many technical effects, which will be described in detail below.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: The grinding mechanism provided by the present invention includes an installation frame, a moving frame, a grinding head, and a grinding head lifting drive device, wherein: The installation frame is movably arranged horizontally on the vehicle body. The grinding head lifting drive device is drivingly connected to the moving frame and is used to drive the moving frame to lift along a direction inclined to the vertical plane on the installation frame; The grinding head is rotatably connected to the moving frame. The grinding head is inclined relative to the vertical plane, so as to form a grinding tip that is easy to self-sharpen at the bottom end of the grinding head.

[0007] Preferably, among the fixed end and the telescopic end of the grinding head lifting drive device, one of them is rotatably connected to the mounting frame, and the other is rotatably connected to the moving frame; An inclined guide rail is provided on the mounting frame. When the telescopic end of the grinding head lifting drive device expands and contracts, it is used to drive the moving frame to roll or slide along the inclined guide rail.

[0008] Preferably, the grinding mechanism includes a rotation drive device and a bushing, wherein: The rotation drive device is fixed to the moving frame, the bushing is fixed to the moving frame, the rotating shaft of the grinding head passes through the bushing and is rotatably connected to the bushing, and the rotation drive device is drivingly connected to the grinding head to drive the grinding head to rotate around the rotating shaft.

[0009] Preferably, the angle between the grinding head and the vertical plane is equal to or not equal to the angle between the lifting path of the moving frame and the vertical plane; When the angle between the grinding head and the vertical plane is not equal to the angle between the lifting path of the moving frame and the vertical plane, there is a non-zero angle β between the lifting path of the moving frame and the inclined direction of the grinding head, and the angle range of the non-zero angle β is [-45°, +70°]; There is a non-zero angle α between the radial plane of the grinding stone installed on the grinding head and the longitudinal plane of the rail, and the range of the non-zero angle α is 1° - 30°.

[0010] Preferably, the grinding mechanism further includes an angle deflection mechanism, and the angle deflection mechanism can manually or automatically adjust the inclination angles of the grinding head and the moving frame relative to the vertical plane; The angle deflection mechanism includes a turntable and an adjusting member, wherein: The turntable is fixed to the transverse movement frame, and the transverse movement frame is arranged to be laterally movable on the vehicle body; An arc-shaped groove is fixed on the turntable, the concave side of the arc-shaped groove is arranged downward, the adjusting member passes through the arc-shaped groove to lock the mounting frame to the transverse movement frame, and when the adjusting member is loosened, the adjusting member can drive the mounting frame to move along the arc-shaped groove, so as to adjust the inclination angles of the grinding head and the moving frame; An angle scale portion is arranged on the outer edge of the arc-shaped groove for visually observing the actual deflection angle of the moving frame or the grinding head.

[0011] Preferably, the inclined guide rail has a tapered portion, and a guide wheel is arranged on the side of the moving frame, wherein: The guide wheel has a wheel groove, the axial cross-section of the wheel groove is V-shaped, and the inner diameter of the wheel groove gradually increases in the direction away from the axis of the wheel groove. The wheel groove is slidably connected to the tapered portion extending therein, and the opposite two groove walls of the wheel groove are respectively located on the opposite sides of the tapered portion.

[0012] The present invention also provides a rail grinding device, including a transverse movement positioning mechanism and the above-mentioned grinding mechanism. The transverse movement positioning mechanism includes a transverse movement driving device and a transverse movement frame for loading the grinding mechanism. The transverse movement driving device is drivingly connected to the transverse movement frame and is used to drive the transverse movement frame to reciprocate horizontally on the vehicle body, and the mounting frame is fixed on the transverse movement frame.

[0013] Preferably, the transverse movement positioning mechanism includes a transverse movement driving device, a guide disk driving device, a guide disk and a transverse movement frame for loading the grinding mechanism, wherein: The transverse movement driving device is drivingly connected to the transverse movement frame and is used to drive the transverse movement frame to reciprocate horizontally on the vehicle body; The guide disk is rotatably connected to the transverse movement frame, and the guide disk driving device is drivingly connected to the guide disk and is used to drive the guide disk to be rotatably arranged on the transverse movement frame; The guide disk abuts against the inner side of the track. When the guide disk swings towards the inner side of the track under the drive of the guide disk driving device, the transverse movement driving device drives the transverse movement frame to drive the grinding mechanism to move towards the outer side of the track; when the guide disk abuts against the inner side of the track and swings towards the outer side of the track under the drive of the guide disk driving device, the transverse movement frame is driven by the reverse thrust of the track to drive the grinding mechanism to move towards the inner side of the track.

[0014] Preferably, the transverse movement positioning mechanism further includes a connecting frame, wherein: the fixed end of the guide disk driving device is rotatably connected to the transverse movement frame, its telescopic end is rotatably connected to the connecting frame, the connecting frame is rotatably connected to the lower end of the transverse movement frame through a rotating shaft, and the guide disk is located at the lower end of the connecting frame; When the guide disk driving device expands and contracts, it can drive the connecting frame to swing, so that the guide disk rotates around the rotating shaft in the vertical plane in the direction towards the inner side or the outer side of the track.

[0015] Preferably, the transverse movement positioning device further includes a guide disk lifting driving device and a lifting frame, wherein: The fixed end of the guide disk lifting driving device is fixed on the connecting frame, its driving end is rotatably connected to the lifting frame, at least part of the lifting frame extends into the cavity of the connecting frame and is slidably connected to the connecting frame, and the guide disk is connected to the bottom end of the lifting frame; the guide disk lifting driving device can drive the lifting frame to extend out of the connecting frame or retract into the connecting frame, so as to realize the lowering or lifting of the guide disk.

[0016] The grinding mechanism and the rail grinding equipment provided by the present invention have the following beneficial effects compared with the prior art: The grinding head is rotatably connected to the inclined moving frame, and with the lifting mode of synchronously lifting and lowering with the moving frame, the influence on the grinding speed and grinding power is reduced; The grinding head is inclined, and as the moving frame lifts and lowers along the inclined direction, the bottom end of the grinding head can form a grinding tip that is easy to self-sharpen. When the grinding tip contacts the rail surface, self-sharpening is more likely to occur. When the abrasive grains become blunt due to wear and the grinding force increases to exceed the binder bonding force or the strength of the abrasive grains themselves, the blunt abrasive grains will break or fall off, and an arc surface that fits the rail surface will gradually form on the grinding head. The arc surface formed after self-sharpening on the grinding head can form a surface contact with the rail curved surface, increasing the contact area between the grinding head and the rail surface, thereby improving the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is a schematic structural diagram of the rail grinding equipment; Figure 2 a - 2c are schematic structural diagrams of the grinding head with the grinding head vertically arranged, inclined arranged, and forming an arc surface; Figure 3 is a schematic diagram of the cooperation structure between the rail grinding equipment and the rail when the guide disk is vertical; Figure 4 is a schematic diagram of the cooperation structure between the rail grinding equipment and the rail when the guide disk swings towards the inner side of the rail; Figure 5 is a schematic diagram of the cooperation structure between the rail grinding equipment and the rail when the guide disk swings towards the outer side of the rail; Figure 6 is a schematic diagram of the cooperation between the arc surface formed after self-sharpening of the grinding tip of the grinding head and the rail curved surface; Figure 7 is a schematic structural diagram of the grinding mechanism from one perspective; Figure 8 is a schematic structural diagram of the grinding mechanism from another perspective; Figure 9 is a schematic structural diagram of the grinding mechanism removing the mounting frame; Figure 10 is a schematic structural diagram of the transverse moving frame and the mounting frame; Figure 11It is a schematic three-dimensional structure diagram of the transverse movement positioning device; Figure 12 It is a side view of the transverse movement positioning device; Figure 13 It is a schematic diagram of one side of the structure where the guide disc rotation driving device and the guide discs cooperate with each other; Figure 14 It is a schematic diagram of the other side of the structure where the guide disc rotation driving device and the guide discs cooperate with each other; Figure 15 It is a schematic structure diagram of the inclined guide rail; Figure 16 It is a schematic structure diagram of the guide wheel; Figure 17 It is a schematic diagram of the included angle between the radial plane of the grinding stone installed on the grinding head and the longitudinal plane of the steel rail.

[0019] In the figure, 100 is the track; 1 is the transverse movement driving device; 21 is the guide disc rotation driving device; 22 is the guide disc; 221 is the guiding peripheral wall; 23 is the connecting frame; 24 is the lifting frame; 25 is the shaft rod; 26 is the rotating shaft; 27 is the guide disc lifting driving device; 3 is the transverse movement frame; 4 is the base; 6 is the grinding mechanism; 61 is the grinding head; 611 is the grinding tip; 612 is the arc surface; 62 is the installation frame; 621 is the inclined guide rail; 622 is the tapered part; 63 is the moving frame; 64 is the grinding head lifting driving device; 65 is the rotation driving device; 66 is the shaft sleeve; 7 is the angle deflection mechanism; 71 is the deflection disc; 72 is the adjusting part; 73 is the arc groove; 8 is the guide wheel; 81 is the wheel groove. Detailed implementation manners

[0020] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", etc. are the orientation or positional relationships based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0022] An embodiment of the present invention provides a grinding mechanism and a rail grinding device. The arc surface formed after self-sharpening on the grinding head can form a surface contact with the rail curve surface, increasing the contact area between the grinding head and the rail surface, thereby improving the grinding efficiency.

[0023] The following will Figures 1 - 17 elaborate on the technical solution provided by the present invention in more detail.

[0024] Embodiment 1: Refer to Figures 1 - 10 As shown, the grinding mechanism provided by the present invention includes an installation frame 62, a moving frame 63, a grinding head 61, and a grinding head lifting drive device 64. Among them: The installation frame 62 is horizontally movably arranged on the vehicle body. The grinding head lifting drive device 64 is drivingly connected to the moving frame 63 and is used to drive the moving frame 63 to lift along a direction inclined to the vertical plane on the installation frame 62; The grinding head 61 is rotationally connected to the moving frame 63, and the grinding head 61 is inclined with respect to the vertical plane, so as to form a grinding tip 611 at the bottom end of the grinding head 61 that is easy to self-sharpen.

[0025] Refer to Figure 2 、 Figure 6 As shown, in this embodiment, the grinding head 61 is rotationally connected to the inclined moving frame 63. The grinding head 61 rises and falls along the inclined direction with the moving frame 63, and the grinding head 61 is inclined. As shown in 2b in Figure 2 , when the grinding head 61 is inclined with respect to the vertical plane, a grinding tip 611 is formed at the bottommost end of the grinding head 61. This grinding tip 611 contacts the rail surface and is more likely to self-sharpen. When the abrasive grains become dull due to wear, when the grinding force increases to exceed the bonding force of the binder or the strength of the abrasive grains themselves, the dull abrasive grains will break or fall off, and an arc surface 612 that fits the rail surface will gradually form on the grinding head 61. As shown in Figure 6 , the arc surface 612 formed after self-sharpening on the grinding head 61 can form a surface contact with the rail curve surface, increasing the contact area between the grinding head 61 and the rail surface, thereby improving the grinding efficiency.

[0026] For the grinding mechanism with the above structure, when grinding the entire curve surface of the rail, it is convenient to cooperate with the grinding heads 61 of other grinding mechanisms on the vehicle body. The grinding heads 61 of multiple grinding mechanisms are arranged at appropriate inclined angles, and the grinding of the entire rail working surface can be achieved. Compared with the grinding head 61 arranged vertically, the inclined grinding head 61, refer to Figure 2As shown, the vertically arranged grinding head 61 has a relatively slow self-sharpening process, which is not conducive to forming a surface that conforms to the profile of the rail. In other words, when the grinding head 61 has an angle of 1 - 30° or more relative to the vertical plane, a grinding tip 611 is formed at the bottom end of the grinding head 61. Compared with the flat bottom end of the grinding head 61, the grinding tip 611 is more likely and faster to self-sharpen.

[0027] The grinding head lifting and driving device 64 in this embodiment can be a hydraulic cylinder, a pneumatic cylinder, an electric cylinder, etc. in the prior art.

[0028] As an alternative implementation, refer to Figure 1 and Figure 7 As shown, among the fixed end and the telescopic end of the grinding head lifting and driving device 64, one of them is rotatably connected to the mounting frame 62, and the other is rotatably connected to the moving frame 63; an inclined guide rail 621 is provided on the mounting frame 62. When the telescopic end of the grinding head lifting and driving device 64 expands and contracts, it is used to drive the moving frame 63 to roll or slide along the inclined guide rail 621.

[0029] In this embodiment, as Figure 7 shown, the fixed end of the grinding head lifting and driving device 64 is fixed on the moving frame 63, and its telescopic end is fixed on the mounting frame 62. By expanding and contracting the telescopic end of the grinding head lifting and driving device 64, the lifting frame can reciprocally move along the inclined guide rail 621 on the mounting frame 62, thereby realizing the lifting or lowering of the grinding head 61.

[0030] As an alternative implementation, refer to Figure 7 As shown, the grinding mechanism includes a rotation driving device 65 and a bushing 66, where: the rotation driving device 65 is fixed on the moving frame 63, the bushing 66 is fixed on the moving frame 63, the rotating shaft of the grinding head 61 passes through the bushing 66 and is rotatably connected to the bushing 66, and the rotation driving device 65 is drivingly connected to the grinding head 61 for driving the grinding head 61 to rotate around the rotating shaft.

[0031] The rotation driving device 65 can be a power device such as a motor. A pulley is provided at the end of the rotating shaft of the grinding head 61, and the output end of the rotation driving device 65 and the pulley are driven by a belt, thereby realizing the rotation of the grinding head 61. Alternatively, the rotation driving device 65 can also realize the rotation of the grinding head 61 around the rotating shaft through chain drive, gear drive, etc. When the grinding head 61 contacts the track surface, it rotates continuously, thereby realizing the grinding of the track surface.

[0032] As an alternative implementation, refer to Figure 17As shown, the grinding stone installed on the grinding head has a non-zero angle α with the longitudinal surface of the rail, and the range of the non-zero angle α is 1° - 30°, which increases the single-pass grinding cutting amount and improves the rail grinding efficiency. Among them, the longitudinal surface of the rail in this field refers to the surface extending along the length direction of the rail.

[0033] As an optional implementation manner, in this embodiment, the angle between the grinding head 61 and the vertical plane, and the angle between the lifting path of the moving frame 63 and the vertical plane are equal or not equal; when the angle between the grinding head 61 and the vertical plane and the angle between the lifting path of the moving frame 63 and the vertical plane are not equal, there is a non-zero angle β between the lifting path of the moving frame 63 and the tilting direction of the grinding head 61, and the angle range of the non-zero angle β is [-45°, +70°]. (Negative for the outer side of the rail and positive for the inner side). Among them, there is a non-zero angle between the lifting path of the moving frame 63 and the tilting direction of the grinding head 61, that is, there is a non-zero angle between the inclined guide rail 621 and the tilting direction of the grinding head 61. With such a setting, the circumferential center line of the grinding head 61 of the grinding mechanism can form an angle with the longitudinal direction of the rail, which is convenient for forming the Figure 2 and Figure 6 arc surface 612 as described above, increasing the cutting amount of the grinding head 61 and improving the grinding efficiency.

[0034] As an optional implementation manner, see Figure 1 As shown, the grinding mechanism of this embodiment further includes an angle deflection mechanism 7, and the angle deflection mechanism 7 can manually or automatically adjust the tilting angles of the grinding head 61 and the moving frame 63 relative to the vertical plane.

[0035] Among them, the angle deflection mechanism 7 can include an electric push rod or a hollow turntable, and the automatic angle deflection of the moving frame 63 is realized by the push of the electric push rod.

[0036] In this embodiment, an implementation manner for manually adjusting the actual deflection angle of the grinding head 61 is provided: see Figure 1 、 Figure 9 and Figure 10 As shown, the angle deflection mechanism 7 of this embodiment includes a deflection disk 71 and an adjusting member 72, where: the deflection disk 71 is fixed on the transverse movement frame 3, and the transverse movement frame 3 is arranged to be movable horizontally on the vehicle body, providing a lateral displacement for the grinding head 61. The movement mode of the transverse movement frame 3 will be described below. An arc groove 73 is fixed on the deflection disk 71, and the concave side of the arc groove 73 is arranged downward. The adjusting member 72 passes through the arc groove 73 to lock the mounting frame 62 on the transverse movement frame 3, and when the adjusting member 72 is loosened, the adjusting member 72 can drive the mounting frame 62 to move along the arc groove 73, thereby adjusting the tilting angles of the grinding head 61 and the moving frame 63; an angle scale portion is arranged on the outer edge of the arc groove 73 for visually observing the actual deflection angle of the moving frame 63 or the grinding head 61.

[0037] The locking member can be a locking bolt. The locking member passes through the arc-shaped groove 73 and is fixedly connected to the mounting frame 62. When it is necessary to adjust the offset angle of the mounting frame 62, loosen the adjusting member 72. The adjusting member 72 drives the mounting frame 62 to move along the arc-shaped groove 73 of the cabinet air conditioner. After adjusting the inclination angle of the mounting frame 62, tighten the adjusting member 72.

[0038] Among them, the above-mentioned "inclination angle" refers to the inclination angle of the mounting frame 62 relative to the vertical plane. See Figure 1 、 Figure 9 and Figure 10 As shown in, the inclined guide rail 621 is arranged along the length direction of the mounting frame 62. The moving frame 63 is in rolling connection with the inclined guide rail 621. The grinding head 61 rotates on the moving frame 63. Adjusting the inclination angle of the mounting frame 62 adjusts the inclination angles of the inclined guide rail 621, the moving frame 63, and the grinding head 61.

[0039] As an alternative embodiment, see Figure 1 、 Figure 15 and Figure 16 As shown in, the inclined guide rail 621 has a tapered portion 622. A guide wheel 8 is arranged on the side of the moving frame 63, where: the guide wheel 8 has a wheel groove 81. The axial cross-section of the wheel groove 81 is V-shaped, and the inner diameter of the wheel groove 81 gradually increases in the direction away from the axis of the wheel groove 81. The wheel groove 81 is in sliding connection with the tapered portion 622 extending into it. The opposite two groove walls of the wheel groove 81 are respectively located on the opposite sides of the tapered portion 622.

[0040] The linear motion mechanism formed by the guide wheel and the inclined guide rail 621 restricts the grinding head 61 to the moving frame and retains two degrees of freedom in the longitudinal direction of the grinding head 61. The grinding head lifting and driving device 64 realizes the lifting and lowering of the grinding head 61 to complete the working feed. Using the guiding mechanism composed of the inclined guide rail 621 and the guide wheel not only overcomes the defect of poor hinge limiting function but also eliminates the defect that the guide post and guide sleeve are sensitive to dust and prone to jamming.

[0041] In this embodiment, the lifting and lowering of the grinding head 61 are realized through the grinding head lifting and driving device 64, and the rotation of the grinding head 61 is realized through the rotation driving device 65. In order to realize the grinding of the track surface, the transverse moving frame 3 where the mounting frame 62 is located can reciprocate in the horizontal direction.

[0042] The following provides an embodiment in which the transverse moving frame 3 can move horizontally and is convenient for positioning the grinding head 61.

[0043] Embodiment 2: See Figures 1 - 5As shown in the figure, this embodiment provides a rail grinding device, which includes a transverse movement and positioning mechanism and the above-mentioned grinding mechanism. The transverse movement and positioning mechanism includes a transverse movement driving device and a transverse frame 3 for loading the grinding mechanism. The transverse movement driving device is drivingly connected to the transverse frame 3 and is used to drive the transverse frame 3 to reciprocate horizontally on the vehicle body. The mounting frame 62 is fixed to the transverse frame 3.

[0044] As an alternative embodiment, referring to Figures 11 - 14 As shown in the figure, the transverse movement and positioning device provided by the present invention includes a transverse movement driving device 1, a guide disk rotation driving device 21, a guide disk 22, and a transverse frame 3 for loading the grinding mechanism 6, wherein: the transverse movement driving device 1 is drivingly connected to the transverse frame 3 and is used to drive the transverse frame 3 to reciprocate horizontally on the vehicle body; the guide disk 22 is rotatably connected to the transverse frame 3, and the guide disk rotation driving device 21 is drivingly connected to the guide disk 22 and is used to drive the guide disk 22 to be rotatably arranged on the transverse frame 3; as Figure 4 shown, when the guide disk 22 abuts against the inner side of the track 100 and swings towards the inner side of the track 100 under the drive of the guide disk rotation driving device 21, the transverse movement driving device 1 drives the transverse frame 3 to drive the grinding mechanism 6 to move towards the outer side of the track 100; as Figure 5 shown, when the guide disk 22 abuts against the inner side of the track 100 and swings towards the outer side of the track 100 under the drive of the guide disk rotation driving device 21, the transverse frame 3 is driven by the reverse thrust of the track 100 to drive the grinding mechanism 6 to move towards the inner side of the track 100.

[0045] Among them, referring to Figures 3 - 5 as shown in the figure, the inner side of the track 100 refers to the relative side of the two parallel guide rail edges. For example, Figures 3 - 5 side A in the figure, and side B refers to the outer side of the track 100.

[0046] In this embodiment, on the one hand, compared with the positioning of the running wheels, the guide disk 22 is positioned on the inner side of the track 100, the positioning is more accurate, and the restricted area is smaller; when the guide disk 22 is positioned on the inner side of the track 100, the guide disk rotation driving device 21 drives the guide disk 22 to swing to a suitable angle, and the force applied by the guide disk rotation driving device 21 to the guide disk 22 acts on the track 100, so that the positioning of the guide disk 22 is more accurate, which is convenient for the grinding head 61 of the grinding head 61 mechanism to grind the surface of the track 100, improving the grinding accuracy, preventing the grinding head 61 from jumping, and preventing the grinding head 61 from forming wave wear on the rail surface.

[0047] On the other hand, the guide disk 22 can be in a vertical state ( Figure 3 ), and always abut against the inner side of the track 100 and deflect inward (compared with the inner side of the rail) ( Figure 4 ), deflect outward (compared with the outer side of the rail) ( Figure 5 ) under the drive of the guide disk rotation driving device 21; Figure 4 and Figure 5The arrow direction in [it] indicates the moving direction of the transverse moving frame 3. As Figure 4 shown, the guide disc 22 abuts against the inner side of the track 100. During the process that the transverse moving frame 3 moves towards the outer side of the track 100 under the action of the transverse moving driving device 1, it is necessary to overcome the acting force between the guide disc 22 and the track 100, which is gradually continuous, facilitating the grinding mechanism 6 to form a continuously moving grinding surface; As Figure 5 shown, the guide disc 22 abuts against the inner side of the track 100. When the guide disc 22 swings towards the outer side of the track 100 under the drive of the guide disc rotation driving device 21, under the reaction force of the track 100, the transverse moving frame 3 moves towards the inner side of the track 100. Since the swing angle of the guide disc 22 gradually changes under the drive of the guide disc rotation driving device, therefore, the reaction force of the track 100 pushes the transverse moving frame 3 to gradually move towards the inner side of the track 100, realizing continuous and micro adjustment of the horizontal position of the transverse moving frame 3. Similarly, it is convenient for the grinding mechanism 6 to form a continuously and micro moving grinding surface, facilitating the control of the transverse movement amount of the grinding mechanism, and improving the grinding efficiency and quality.

[0048] Therefore, in this embodiment, in addition to the function of positioning the grinding mechanism 6, the guide disc 22 also has the function of using the reaction force of the track 100 to push the transverse moving frame 3 to gradually move towards the inner side of the track 100. Specifically, an acting force is generated between the guide disc 22 and the track 100. During the swinging process of the guide disc 22, the inclined surface of the guide disc 22 gradually increases, and the reaction force of the track 100 is used to push the transverse moving frame 3 to gradually move towards the inner side of the track 100, facilitating the grinding mechanism 6 to form a continuously moving grinding surface.

[0049] The guide disc rotation driving device 21 and the transverse moving driving device 1 can be hydraulic cylinders, air cylinders, electric cylinders, etc. in the prior art. Both the guide disc rotation driving device 21 and the transverse moving driving device 1 have a fixed end and a telescopic end. The guide disc rotation driving device 21 drives the guide disc 22 to rotate through telescoping, and the transverse moving driving device 1 drives the transverse moving frame 3 to horizontally move through telescoping.

[0050] Among them, during operation, the transverse moving driving device 1 extends the piston rod to complete the extension of the guide disc 22, realizing the reference loading of the rail surface grinding head 61. When the operation is completed, the transverse moving driving device 1 retracts the piston rod to unload the reference of the rail surface grinding head 61 (hereinafter referred to as the grinding head 61). When passing through the frog heart, the piston rod of the transverse moving driving device 1 floats to prevent the guide disc 22 from climbing the rail or hitting the frog heart.

[0051] In order to achieve: the guide disk 22 abuts against the inner side of the track 100, and when it swings towards the outer side of the track 100 under the drive of the guide disk rotation drive device 21, the transverse movement frame 3 is driven by the reverse thrust of the track 100 to drive the grinding mechanism 6 to move towards the inner side of the track 100. In this embodiment, the power of the guide disk rotation drive device 21 is greater than the power of the transverse movement drive device 1. When the guide disk 22 abuts against the inner side of the track 100 and swings towards the outer side of the track 100 under the drive of the guide disk rotation drive device 21, the transverse movement drive device 1 retracts under the action of the transverse movement frame 3.

[0052] In other words, in this embodiment, therefore, see Figure 5 As shown, when the guide disk 22 swings towards the outer side of the track 100, the track 100 acts on the guide disk 22 and the transverse movement frame 3 with a force towards the inner side of the track 100. Since the power of the guide disk rotation drive device 21 is greater than the power of the transverse movement drive device 1, therefore, the force that the track 100 acts on the guide disk 22 and the transverse movement frame 3 towards the inner side of the track 100 is greater than the power of the transverse movement drive device 1. The transverse movement drive device 1 contracts under the action of this reaction force. As Figure 5 shown, at this time, the transverse movement frame 3 moves horizontally towards the inner side of the track 100.

[0053] As an alternative implementation, see Figure 13 and Figure 14 As shown, the transverse movement positioning device of this embodiment further includes a connecting frame 23, wherein: the fixed end of the guide disk rotation drive device 21 is rotatably connected to the transverse movement frame 3, its telescopic end is rotatably connected to the connecting frame 23, the connecting frame 23 is rotatably connected to the lower end of the transverse movement frame 3 through a rotating shaft 26, and the guide disk 22 is located at the lower end of the connecting frame 23; when the guide disk rotation drive device 21 expands and contracts, it can drive the connecting frame 23 to swing, so that the guide disk 22 rotates around the rotating shaft 26 in the vertical plane in the direction towards the inner side of the track 100 or towards the outer side of the track 100.

[0054] In this embodiment, see Figure 13 and Figure 14 As shown, the guide disk rotation drive device 21 drives the connecting frame 23 to rotate around the rotating shaft 26. Since the guide disk 22 is located at the lower end of the connecting frame 23, therefore, the guide disk 22 also rotates accordingly. Among them, the above-mentioned swing of the guide disk 22 towards the inner side of the track 100 and the swing of the guide disk 22 towards the outer side of the track 100 refer to the swing of the guide disk 22 with the above-mentioned rotating shaft 26 as the axis. When the guide disk 22 swings with the rotating shaft 26 as the axis, as Figures 3 - 5 shown, the guide disk 22 has a vertical state and an inclined state.

[0055] As an alternative implementation, see Figure 11 and Figure 12 、see Figure 13 and Figure 14As shown in the figure, the transverse movement positioning device of this embodiment further includes a guide disk lifting drive device 27 and a lifting frame 24, where: the fixed end of the guide disk lifting drive device 27 is fixed to the connecting frame 23, its driving end is rotatably connected to the lifting frame 24, at least part of the lifting frame 24 extends into the cavity of the connecting frame 23 and is slidably connected to the connecting frame 23, and the guide disk 22 is connected to the bottom end of the lifting frame 24; the guide disk lifting drive device 27 can drive the lifting frame 24 to extend out of the connecting frame 23 or retract into the connecting frame 23, so as to realize the lowering or lifting of the guide disk 22.

[0056] The guide disk lifting drive device 27 can be a hydraulic cylinder, a pneumatic cylinder, an electric cylinder, etc. in the prior art. The guide disk lifting drive device 27 has a fixed end and a telescopic end. The guide disk lifting drive device 27 drives the lifting frame 24 to slide relative to the connecting frame 23 through telescopic movement, so as to realize the lowering and lifting of the guide disk 22.

[0057] Combined with Figure 13 and Figure 14 As shown in the figure, in this embodiment, the connecting frame 23 rotates around the rotating shaft 26, driving the guide disk 22 to swing, as shown in Figure 13 ; the guide disk lifting drive device 27 is rotatably connected to the lifting frame 24, driving the lifting frame 24 to lift, so as to realize the lowering or lifting of the guide disk 22, as shown in Figure 14 . With such a setting, the lifting and swinging movements of the guide disk 22 do not interfere with each other, improving the structural stability and the smoothness of the movement.

[0058] As an optional implementation manner, referring to Figure 13 and Figure 14 As shown in the figure, the guide disk 22 is fixed to the bottom end of the lifting frame 24 through a shaft rod 25, and the axial direction of the shaft rod 25 is perpendicular to the axial direction of the rotating shaft 26. Referring to Figures 3 - 5 , Figure 13 , Figure 14 As shown in the figure, the guide disk 22 includes a guiding peripheral wall 221, and the guiding peripheral wall 221 is an arc-shaped curved surface. When the guide disk 22 is in a vertical state, the guiding peripheral wall 221 fits with the inner side of the track 100.

[0059] In this embodiment, with the above arrangement structure of the shaft rod 25 and the rotating shaft 26, when the guide disk 22 swings or lifts, it can ensure that the guiding peripheral wall 221 of the guide disk 22 always fits with the inner side of the track 100. When the guide disk 22 is in an inclined state due to swinging, the shape of the guiding peripheral wall 221 fits with the curved surface of the track 100, as shown in Figure 4 and Figure 5 As shown in the figure, the contact area between the guide disk 22 and the track 100 is increased, improving the positioning effect.

[0060] As an optional implementation manner, referring to Figures 3 - 5 , Figure 11 , Figure 12As shown, the transverse movement and positioning device further includes a base 4, which is fixed to the vehicle body. The fixed end of the transverse movement driving device 1 is fixed to the base 4, and its telescopic end is hinged to the transverse movement frame 3; the base 4 is fixed to the vehicle body of the grinding equipment, and the transverse movement frame 3 reciprocates horizontally along the base 4, improving the structural stability and the smoothness of the movement.

[0061] For the transverse movement and positioning device of the rail grinding equipment in this embodiment, during operation, the transverse movement driving device 1 extends the piston rod to complete the extension of the guide disc 22 to achieve the reference loading of the rail curved surface grinding head 61. The guide disc lifting driving device 27 drives the lower guide disc 22, see Figure 3 As shown, at this time, the guide disc 22 is in a vertical state and abuts against the inner side of the track 100. Under the positioning action of the guide disc 22, the grinding head 61 of the grinding mechanism 6 contacts the target surface of the track 100 under the action of its corresponding driving device, and starts to grind the surface of the track 100. When the grinding head 61 finishes grinding a section of the curved surface of the track 100, it is necessary to move the transverse movement frame 3 to change the grinding position of the grinding head 61 on the surface of the track 100. Figure 4 and Figure 5 The arrow directions in Figure 4 indicate the moving direction of the transverse movement frame 3. As shown in Figure 5 , when the guide disc 22 swings towards the inner side of the track 100 under the drive of the guide disc rotation driving device 21, the transverse movement driving device 1 drives the transverse movement frame 3 to move towards the outer side of the track 100. When the guide disc 22 abuts against the inner side of the track 100, during the process of the transverse movement frame 3 moving towards the outer side of the track 100 under the action of the transverse movement driving device 1, it is necessary to overcome the acting force between the guide disc 22 and the track 100, which is gradually continuous, facilitating the grinding mechanism 6 to form a continuous moving grinding surface. See Figure 5 As shown in Figure 5 , when the guide disc 22 swings towards the outer side of the track 100 under the drive of the guide disc rotation driving device 21, the transverse movement frame 3 is driven by the reverse thrust of the track 100 to drive the grinding mechanism 6 to move towards the inner side of the track 100. See Figure 5 , the track 100 acts on the guide disc 22 and the transverse movement frame 3 with a force towards the inner side of the track 100. Since the power of the guide disc rotation driving device 21 is greater than the power of the transverse movement driving device 1, therefore, the force that the track 100 acts on the guide disc 22 and the transverse movement frame 3 towards the inner side of the track 100 is greater than the power of the transverse movement driving device 1. The transverse movement driving device 1 contracts under the action of this reaction force. As shown in Figure 5 , at this time, the transverse movement frame 3 moves horizontally towards the inner side of the track 100. With the continuous swinging of the guide disc 22, the transverse movement frame 3 moves continuously and uninterruptedly, and the grinding head 61 forms a continuous and uninterrupted grinding track on the surface of the track 100, improving the grinding effect.

[0062] In the description of this specification, specific features, structures or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0063] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0064] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A grinding mechanism, characterized in that, It includes an installation frame, a moving frame, a grinding head, and a grinding head lifting drive device, where: The installation frame is arranged to be horizontally movable on the vehicle body, and the grinding head lifting drive device is drivingly connected to the moving frame for driving the moving frame to lift along a direction inclined to the vertical plane on the installation frame; The grinding head is rotationally connected to the moving frame, and the grinding head is arranged inclined with respect to the vertical plane, so as to form a grinding tip that is easy to self-sharpen at the bottom end of the grinding head.

2. The grinding mechanism according to claim 1, characterized in that, Among the fixed end and the telescopic end of the grinding head lifting drive device, one of them is rotationally connected to the installation frame, and the other is rotationally connected to the moving frame; An inclined guide rail is arranged on the installation frame. When the telescopic end of the grinding head lifting drive device expands and contracts, it is used to drive the moving frame to roll or slide along the inclined guide rail.

3. The grinding mechanism according to claim 1, characterized in that, The grinding mechanism includes a rotation drive device and a bushing, where: The rotation drive device is fixed on the moving frame, the bushing is fixed on the moving frame, the rotating shaft of the grinding head passes through the bushing and is rotationally connected to the bushing, and the rotation drive device is drivingly connected to the grinding head for driving the grinding head to rotate self about the rotating shaft.

4. The grinding mechanism according to claim 1, characterized in that, The angle between the grinding head and the vertical plane and the angle between the lifting path of the moving frame and the vertical plane are equal or not equal; When the angle between the grinding head and the vertical plane and the angle between the lifting path of the moving frame and the vertical plane are not equal, there is a non-zero angle β between the lifting path of the moving frame and the inclined direction of the grinding head, and the angle range of the non-zero angle β is [-45°, +70°]; There is a non-zero angle α between the radial plane of the grinding stone on which the grinding head is installed and the longitudinal plane of the rail, and the range of the non-zero angle α is 1° - 30°.

5. The grinding mechanism according to claim 1, wherein, The grinding mechanism further includes an angle deflection mechanism, and the angle deflection mechanism can manually or automatically adjust the inclination angles of the grinding head and the moving frame with respect to the vertical plane; The angle deflection mechanism includes a deflection disc and an adjusting member, where: The deflection disc is fixed on the transverse movement frame, and the transverse movement frame is arranged to be horizontally movable on the vehicle body; An arc-shaped groove is fixed on the deflection disc, the concave side of the arc-shaped groove is arranged downward, the adjusting member passes through the arc-shaped groove to lock the installation frame on the transverse movement frame, and when the adjusting member is loosened, the adjusting member can drive the installation frame to move along the arc-shaped groove, so as to adjust the inclination angles of the grinding head and the moving frame; An angle scale portion is arranged on the outer edge of the arc-shaped groove for visually observing the actual deflection angle of the moving frame or the grinding head.

6. The grinding mechanism according to claim 2, wherein The inclined guide rail has a tapered portion, and a guide wheel is arranged on the side of the moving frame, where: The guide wheel has a wheel groove, the axial cross-section of the wheel groove is V-shaped, and the inner diameter of the wheel groove gradually increases along the direction away from the axis of the wheel groove. The wheel groove is slidably connected to the tapered portion extending into it, and the opposite two groove walls of the wheel groove are respectively located on the opposite sides of the tapered portion.

7. A rail grinding device, characterized in that, It includes a transverse movement positioning mechanism and the grinding mechanism according to any one of claims 1-6. The transverse movement positioning mechanism includes a transverse movement driving device and a transverse movement frame for loading the grinding mechanism. The transverse movement driving device is drivingly connected to the transverse movement frame and is used to drive the transverse movement frame to reciprocate horizontally on the vehicle body. The installation frame is fixed to the transverse movement frame.

8. The rail grinding equipment according to claim 7, characterized in that, The transverse movement positioning mechanism includes a transverse movement driving device, a guide disc driving device, a guide disc and a transverse movement frame for loading the grinding mechanism, wherein: The transverse movement driving device is drivingly connected to the transverse movement frame and is used to drive the transverse movement frame to reciprocate horizontally on the vehicle body; The guide disc is rotatably connected to the transverse movement frame. The guide disc driving device is drivingly connected to the guide disc and is used to drive the guide disc to be rotatably arranged on the transverse movement frame; The guide disc abuts against the inner side of the track. When the guide disc swings towards the inner side of the track under the drive of the guide disc driving device, the transverse movement driving device drives the transverse movement frame to drive the grinding mechanism to move towards the outer side of the track; when the guide disc abuts against the inner side of the track and swings towards the outer side of the track under the drive of the guide disc driving device, the transverse movement frame is driven by the reverse thrust of the track to drive the grinding mechanism to move towards the inner side of the track.

9. The rail grinding equipment according to claim 8, wherein, The transverse movement positioning mechanism further includes a connecting frame, wherein: the fixed end of the guide disc driving device is rotatably connected to the transverse movement frame, its telescopic end is rotatably connected to the connecting frame, the connecting frame is rotatably connected to the lower end of the transverse movement frame through a rotating shaft, and the guide disc is located at the lower end of the connecting frame; When the guide disc driving device expands and contracts, it can drive the connecting frame to swing, so that the guide disc rotates around the rotating shaft in the vertical plane in the direction towards the inner side of the track or towards the outer side of the track.

10. The rail grinding equipment according to claim 9, characterized in that, The transverse movement positioning device further includes a guide disc lifting driving device and a lifting frame, wherein: The fixed end of the guide disc lifting driving device is fixed to the connecting frame, its driving end is rotatably connected to the lifting frame, at least part of the lifting frame extends into the cavity of the connecting frame and is slidably connected to the connecting frame, and the guide disc is connected to the bottom end of the lifting frame; the guide disc lifting driving device can drive the lifting frame to extend out of the connecting frame or retract into the connecting frame, so as to realize the lowering or lifting of the guide disc.

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