Transverse positioning device for rail grinding equipment and rail grinding equipment

Abstract

The present invention provides a transverse positioning device for rail grinding equipment and a rail grinding equipment, which relates to rail equipment. In the transverse positioning device, a transverse driving device is connected to a transverse frame for driving the transverse frame to move horizontally back and forth on a vehicle body; a guide plate is rotationally connected to the transverse frame, and a guide plate rotation driving device is transmission-connected to the guide plate for driving the guide plate to rotate on the transverse frame; the guide plate abuts against the inner side of the track and, when driven by the guide plate rotation driving device, swings toward the inner side of the track, the transverse driving device drives the transverse frame to drive the grinding mechanism to move toward the outer side of the track; the guide plate abuts against the inner side of the track and, when driven by the guide plate rotation driving device, swings toward the outer side of the track, the transverse frame is driven by the reverse thrust of the track to drive the grinding mechanism to move toward the inner side of the track. The swing angle of the guide plate gradually changes under the drive of the guide plate driving mechanism, which facilitates the grinding mechanism to form a continuously moving grinding surface, thereby improving grinding efficiency and quality.

Description

Technical Field

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

[0002] A rail grinding vehicle consists of a positioning device and a grinding head. The grinding head contacts and grinds the rail surface. The surface of the grinding head in contact with the rail surface is called the grinding surface. Movement of the grinding surface is achieved by moving the grinding head. Typically, a transverse movement mechanism is used to achieve lateral movement of the grinding head, while a longitudinal drive mechanism achieves longitudinal movement. The transverse and longitudinal drive mechanisms work together to ensure that the grinding trajectory matches the rail profile.

[0003] In existing technology, the grinding head positioning method for rail grinding vehicles is mainly to load the running wheels of the rail grinding vehicle against the inner side of the rail to relatively position the grinding head. The grinding head is mainly moved laterally by directly pushing or pulling the frame on which the grinding head is located using electric push rods or hydraulic rods, thereby achieving left and right movement of the grinding head.

[0004] The applicant has discovered that the prior art has at least the following technical problems:

[0005] On the one hand, existing grinding devices that use the grinding trolley's running wheels as a positioning method have a long distance between the two wheels, which increases the restricted area of ​​rail switch grinding applications when used for curved surface grinding. The current positioning method for curved surface grinding has three degrees of freedom: two longitudinal and one vertical. The vertical degree of freedom causes the grinding stone to jump during high-power, rapid grinding, creating corrugations on the rail surface. The two longitudinal degrees of freedom allow the grinding stone to change its bevel angle during lateral movement.

[0006] On the other hand, the current positioning method for curved surface grinding has three degrees of freedom, two longitudinal and one vertical. The existing technology uses an electric push rod or a hydraulic rod to push or pull the frame where the grinding head is located. It is impossible to accurately control the movement distance of the grinding head each time, and it is easy to miss grinding or make wrong grinding on the track (the sharp angle of the grinding stone after self-sharpening acts on the plane of the rail to form a line contact). Summary of the Invention

[0007] The present invention aims to provide a transverse positioning device for rail grinding equipment and a rail grinding device, thereby resolving the technical problem of existing transverse positioning methods of rail grinding equipment causing grinding head jitter and poor grinding results. The various technical effects of the preferred technical solutions provided by the present invention are detailed below.

[0008] To achieve the above objectives, the present invention provides the following technical solutions:

[0009] The transverse positioning device for rail grinding equipment provided by the present invention comprises a transverse driving device, a guide plate rotation driving device, a guide plate and a transverse frame for loading a grinding mechanism, wherein:

[0010] The transverse driving device is drivingly connected to the transverse frame, and is used to drive the transverse frame to move horizontally back and forth on the vehicle body;

[0011] The guide plate is rotatably connected to the transverse frame, and the guide plate rotation driving device is in transmission connection with the guide plate, and is used to drive the guide plate to rotate on the transverse frame;

[0012] When the guide plate abuts against the inner side of the track and swings toward the inner side of the track under the drive of the guide plate rotation drive device, the transverse drive device drives the transverse frame to drive the grinding mechanism to move toward the outer side of the track; when the guide plate abuts against the inner side of the track and swings toward the outer side of the track under the drive of the guide plate rotation drive device, the transverse frame drives the grinding mechanism to move toward the inner side of the track under the reverse thrust of the track.

[0013] Preferably, it is characterized in that the power of the guide plate rotation drive device is greater than the power of the transverse drive device. When the guide plate rests against the inner side of the track and swings toward the outer side of the track under the drive of the guide plate rotation drive device, the transverse drive device retracts under the action of the transverse frame.

[0014] Preferably, the transverse positioning device further includes a connecting frame, wherein:

[0015] The fixed end of the guide plate rotation drive device is rotatably connected to the transverse frame, and the telescopic end thereof is rotatably connected to the connecting frame. The connecting frame is rotatably connected to the lower end of the transverse frame via a rotating shaft, and the guide plate is located at the lower end of the connecting frame.

[0016] The guide plate rotation drive device can drive the connecting frame to swing when it is extended or retracted, so that the guide plate rotates around the rotating shaft in a vertical plane in a direction toward the inside of the track or toward the outside of the track.

[0017] Preferably, the transverse positioning device further includes a guide plate lifting drive device and a lifting frame, wherein:

[0018] The fixed end of the guide plate lifting drive device is fixed to the connecting frame, and the driving end thereof is rotatably connected to the lifting frame. At least a portion of the lifting frame extends into the cavity of the connecting frame and is slidably connected to the connecting frame. The guide plate is connected to the bottom end of the lifting frame. The guide plate lifting drive device can drive the lifting frame to extend out of the connecting frame or retract into the connecting frame, thereby realizing the lowering or lifting of the guide plate.

[0019] Preferably, the guide plate is fixed to the bottom end of the lifting frame through a shaft, and the axial direction of the shaft is perpendicular to the axial direction of the rotating shaft.

[0020] Preferably, the transverse positioning device further comprises a base, the base being fixed on the vehicle body, the fixed end of the transverse driving device being fixed on the base, and the telescopic end thereof being hinged to the transverse frame;

[0021] A horizontal guide rail is provided on the base, and a guide wheel is rotatably connected to the transverse frame. The guide wheel is located on the outer side or the inner side of the guide plate, and the guide wheel rolls along the horizontal guide rail.

[0022] Preferably, the horizontal guide rail has a tapered portion, and the tapered portion is located on a side of the horizontal guide rail facing away from the guide disc;

[0023] 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 cone portion extending therein, and the two opposite groove walls of the wheel groove are respectively located on the upper and lower sides of the cone portion.

[0024] Preferably, the horizontal guide rails are located on opposite sides of the base, the guide wheels are located on opposite sides of the transverse frame, and the number of the guide wheels on the same side of the transverse frame is more than two.

[0025] Preferably, the guide plate includes a guide peripheral wall, the guide peripheral wall is an arc-shaped curved surface, and the guide peripheral wall is in contact with the inner side of the track.

[0026] The present invention provides a rail grinding device, comprising a grinding mechanism and the above-mentioned transverse movement and positioning device for the rail grinding device.

[0027] The transverse positioning device for rail grinding equipment and the rail grinding equipment provided by the present invention have the following beneficial effects compared with the prior art: the guide plate is positioned on the inner side of the track, and compared with the running wheel positioning and the double guide plate positioning, the positioning is more accurate and the restricted area is smaller; the guide plate can be in a vertical state under the drive of the guide plate rotation drive device, and always lean against the inner side of the track to deflect inward (compared to the inner side of the rail) and outward (compared to the outer side of the rail); the guide plate leans against the inner side of the track, and the transverse frame moves toward the outer side of the track under the action of the transverse drive device, and needs to overcome the The acting force between the disc and the track is gradual and continuous, which is convenient for the grinding mechanism to form a continuously moving grinding surface; when the guide disc rests against the inner side of the track and swings toward the outer side of the track under the drive of the guide disc rotation drive device, the transverse frame moves toward the inner side of the track under the reaction force of the track. Since the swing angle of the guide disc gradually changes under the drive of the guide disc drive mechanism, the reaction force of the track pushes the transverse frame to gradually move toward the inner side of the track, which is convenient for controlling the transverse displacement of the grinding mechanism, and also facilitates the grinding mechanism to form a continuously moving grinding surface, thereby improving the grinding efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the transverse positioning device used for rail grinding equipment;

[0030] Figure 2 It is a side view of a transverse positioning device for rail grinding equipment;

[0031] Figure 3 This is a schematic diagram of the coordination structure between the rail grinding equipment and the track when the guide disc is vertical;

[0032] Figure 4 This is a schematic diagram of the coordination structure between the rail grinding equipment and the track when the guide disc swings toward the inner side of the track;

[0033] Figure 5 This is a schematic diagram of the coordination structure between the rail grinding equipment and the track when the guide disc swings toward the outside of the track;

[0034] Figure 6 It is a schematic diagram of one side of the guide disc rotation drive device and the guide disc cooperation structure;

[0035] Figure 7It is a schematic diagram of the other side of the guide disc rotation drive device and the guide disc cooperation structure;

[0036] Figure 8 It is a structural diagram of the horizontal guide rail;

[0037] Figure 9 It is a structural diagram of the guide wheel.

[0038] In the figure, 100, track; 1, transverse driving device; 21, guide plate rotation driving device; 22, guide plate; 221, guide peripheral wall; 23, connecting frame; 24, lifting frame; 25, shaft; 26, rotating shaft; 27, guide plate lifting driving device; 3, transverse frame; 4, base; 41, horizontal guide rail; 411, cone; 5, guide wheel; 51, wheel groove; 6, grinding mechanism; 61, grinding head. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center," "length," "width," "height," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and "side" and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0041] The embodiment of the present invention provides a transverse positioning device for rail grinding equipment, which facilitates the grinding mechanism to form a continuously moving grinding surface and ensures that the target grinding surface of the rail can be completely ground during the movement of the grinding mechanism.

[0042] The following combination Figures 1-9 The technical solution provided by the present invention is described in more detail.

[0043] Embodiment 1:

[0044] like Figure 1-Figure 7As shown, the transverse positioning device for rail grinding equipment provided by the present invention includes a transverse driving device 1, a guide plate rotation driving device 21, a guide plate 22 and a transverse frame 3 for loading the grinding mechanism 6, wherein: the transverse driving device 1 is drivingly connected to the transverse frame 3, and is used to drive the transverse frame 3 to move horizontally back and forth on the vehicle body; the guide plate 22 is rotationally connected to the transverse frame 3, and the guide plate rotation driving device 21 is transmission-connected to the guide plate 22, and is used to drive the guide plate 22 to be rotatable on the transverse frame 3; as shown Figure 4 , the guide plate 22 abuts against the inner side of the track 100, and when it swings toward the inner side of the track 100 under the drive of the guide plate rotation drive device 21, the transverse drive device 1 drives the transverse frame 3 to drive the grinding mechanism 6 to move toward the outer side of the track 100; Figure 5 The guide plate 22 rests against the inner side of the track 100 and swings toward the outer side of the track 100 under the drive of the guide plate rotation drive device 21. The transverse frame 3 is driven by the reverse thrust of the track 100 to drive the grinding mechanism 6 to move toward the inner side of the track 100.

[0045] Among them, see Figure 3-Figure 5 As shown, the inner side of the track 100 refers to the opposite side of the two parallel guide rail edges, such as Figure 3-Figure 5 The A side and the B side refer to the outer side of the track 100.

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

[0047] On the other hand, the guide plate 22 can be in a vertical state under the drive of the guide plate rotation drive device 21 ( Figure 3 ), and always leans against the inner side of the track 100 and deflects inward (compared to the inner side of the rail) ( Figure 4 ), outward deflection (compared to the outside of the rail) ( Figure 5 ); Figure 4 and Figure 5 The arrow direction in the figure indicates the moving direction of the transverse frame 3. Figure 4 As shown, the guide plate 22 abuts against the inner side of the track 100. When the traverse frame 3 moves toward the outer side of the track 100 under the action of the traverse drive device 1, it needs to overcome the force between the guide plate 22 and the track 100. This is done gradually and continuously, so that the grinding mechanism 6 can form a continuously moving grinding surface. Figure 5As shown, the guide plate 22 rests against the inner side of the track 100, and when it swings toward the outer side of the track 100 under the drive of the guide plate rotation drive device 21, the transverse frame 3 moves toward the inner side of the track 100 under the reaction force of the track 100. Since the swing angle of the guide plate 22 gradually changes under the drive of the guide plate rotation drive device, the reaction force of the track 100 pushes the transverse frame 3 to gradually move toward the inner side of the track 100, thereby realizing continuous and fine adjustment of the horizontal position of the transverse frame 3, and also facilitating the grinding mechanism 6 to form a continuously fine-moving grinding surface, thereby facilitating the control of the transverse movement amount of the grinding mechanism and improving the grinding efficiency and quality.

[0048] Therefore, in addition to the function of positioning the grinding mechanism 6, the guide plate 22 in this embodiment also has the function of utilizing the reaction force of the track 100 to push the transverse frame 3 to gradually move toward the inner side of the track 100. Specifically, a force is generated between the guide plate 22 and the track 100. During the swinging process of the guide plate 22, the inclined surface of the guide plate 22 gradually increases, and the reaction force of the track 100 is utilized to push the transverse frame 3 to gradually move toward the inner side of the track 100, so that the grinding mechanism 6 can form a continuously moving grinding surface.

[0049] It should be understood that see Figure 1-Figure 5 As shown, the grinding mechanism 6 includes a grinding head 61. The grinding head 61 is driven to rotate by a motor or the like and to be raised and lowered by a telescopic cylinder or the like. The structure of the grinding mechanism 6 is not described in detail here. The grinding mechanism 6 can be mounted on the transverse frame 3 and move horizontally with the transverse frame 3, providing the grinding head 61 with lateral freedom.

[0050] The guide plate rotation drive device 21 and the transverse movement drive device 1 can be hydraulic cylinders, air cylinders, electric cylinders, etc. in the prior art. The guide plate rotation drive device 21 and the transverse movement drive device 1 both have a fixed end and a telescopic end. The guide plate rotation drive device 21 rotates the guide plate 22 by telescopic driving, and the transverse movement drive device 1 moves horizontally by telescopic driving the transverse movement frame 3.

[0051] During operation, the traverse drive 1 extends the piston rod to extend the guide disc 22, achieving baseline loading of the rail grinding head 61. Upon completion, the traverse drive 1 retracts the piston rod, unloading the rail grinding head 61 (hereinafter referred to as the grinding head 61). When passing through the frog, the piston rod of the traverse drive 1 floats to prevent the guide disc 22 from climbing the rail or striking the frog.

[0052] In order to achieve the following: when the guide plate 22 abuts against the inner side of the track 100 and swings toward the outer side of the track 100 under the drive of the guide plate rotation drive device 21, the traverse frame 3 is driven by the reverse thrust of the track 100 to drive the grinding mechanism 6 toward the inner side of the track 100. In this embodiment, the power of the guide plate rotation drive device 21 is greater than the power of the traverse drive device 1. When the guide plate 22 abuts against the inner side of the track 100 and swings toward the outer side of the track 100 under the drive of the guide plate rotation drive device 21, the traverse drive device 1 retracts under the force of the traverse frame 3.

[0053] In other words, in this embodiment, therefore, see Figure 5 As shown in FIG, when the guide plate 22 swings toward the outside of the track 100, the track 100 exerts a force on the guide plate 22 and the transverse frame 3 toward the inside of the track 100. Since the power of the guide plate rotation drive device 21 is greater than the power of the transverse drive device 1, the force exerted by the track 100 on the guide plate 22 and the transverse frame 3 toward the inside of the track 100 is greater than the power of the transverse drive device 1. The transverse drive device 1 contracts under the action of this reaction force, as shown in FIG. Figure 5 As shown, at this time, the transverse frame 3 moves horizontally toward the inside of the track 100.

[0054] As an alternative embodiment, see Figure 6 and Figure 7 As shown, the transverse positioning device of this embodiment also includes a connecting frame 23, wherein: the fixed end of the guide plate rotation driving device 21 is rotatably connected to the transverse frame 3, and the telescopic end thereof is rotatably connected to the connecting frame 23, and the connecting frame 23 is rotatably connected to the lower end of the transverse frame 3 through the rotating shaft 26, and the guide plate 22 is located at the lower end of the connecting frame 23; when the guide plate rotation driving device 21 is telescopic, it can drive the connecting frame 23 to swing, so that the guide plate 22 rotates around the rotating shaft 26 in the vertical plane in a direction toward the inside of the track 100 or toward the outside of the track 100.

[0055] In this embodiment, see Figure 6 and Figure 7 As shown, the guide plate rotation drive device 21 drives the connecting frame 23 to rotate around the rotating shaft 26. Since the guide plate 22 is located at the lower end of the connecting frame 23, the guide plate 22 also rotates accordingly. Among them, the above-mentioned guide plate 22 swings toward the inside of the track 100 and the guide plate 22 swings toward the outside of the track 100, which refers to the swing of the guide plate 22 with the rotating shaft 26 as the axis. When the guide plate 22 swings with the rotating shaft 26 as the axis, as shown in FIG. Figure 3-Figure 5 As shown, the guide plate 22 has a vertical state and an inclined state.

[0056] As an alternative embodiment, see Figure 1-Figure 3 、 Figure 6 and Figure 7As shown, the transverse positioning device of this embodiment also includes a guide plate lifting drive device 27 and a lifting frame 24, wherein: the fixed end of the guide plate lifting drive device 27 is fixed on the connecting frame 23, and 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 plate 22 is connected to the bottom end of the lifting frame 24; the guide plate 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, thereby realizing the lowering or lifting of the guide plate 22.

[0057] The guide plate lifting drive device 27 can be a hydraulic cylinder, a pneumatic cylinder, an electric cylinder, etc. in the prior art. The guide plate lifting drive device 27 has a fixed end and a telescopic end. The guide plate lifting drive device 27 drives the lifting frame 24 to slide relative to the connecting frame 23 through the telescopic drive, thereby realizing the lowering and lifting of the guide plate 22.

[0058] Combine Figure 6 and Figure 7 As shown, in this embodiment, the connecting frame 23 rotates around the rotating shaft 26, driving the guide plate 22 to swing, as shown in FIG. Figure 6 The guide plate lifting drive device 27 is rotatably connected to the lifting frame 24, driving the lifting frame 24 to lift and lower the guide plate 22, thereby achieving the lowering or lifting of the guide plate 22, as shown Figure 7 With such arrangement, the lifting and swinging motions of the guide plate 22 do not interfere with each other, thereby improving the stability of the structure and the smoothness of the motion.

[0059] As an alternative embodiment, see Figure 6 and Figure 7 As shown, the guide plate 22 is fixed to the bottom end of the lifting frame 24 through the shaft 25, and the axis direction of the shaft 25 is perpendicular to the axis direction of the rotating shaft 26. Figure 3-Figure 6 As shown, the guide plate 22 includes a guide peripheral wall 221 , which is an arc-shaped surface. When the guide plate 22 is in a vertical state, the guide peripheral wall 221 fits in with the inner side of the track 100 .

[0060] In this embodiment, the above arrangement structure of the shaft 25 and the rotating shaft 26 can ensure that the guide peripheral wall 221 of the guide plate 22 always fits the inner side of the track 100 when the guide plate 22 swings or rises and falls. When the guide plate 22 is tilted due to the swing, the shape of the guide peripheral wall 221 fits the curved surface of the track 100. Figure 4 and Figure 5 As shown, the contact area between the guide plate 22 and the track 100 is increased, thereby improving the positioning effect.

[0061] As an alternative embodiment, see Figure 1-Figure 5 As shown, the transverse positioning device also includes a base 4, which is fixed to the vehicle body. The fixed end of the transverse driving device 1 is fixed to the base 4, and its telescopic end is hinged to the transverse frame 3; Figure 2 As shown, a horizontal guide rail 41 is provided on the base 4 , and a guide wheel 5 is rotatably connected to the transverse frame 3 . The guide wheel 5 is located on the outside or inside of the guide plate 22 , and the guide wheel 5 rolls along the horizontal guide rail 41 .

[0062] The base 4 is fixed on the body of the grinding equipment. The base 4 and the transverse frame 3 realize the horizontal reciprocating motion of the transverse frame 3 along the base 4 through the cooperation structure of the guide wheel 5 and the horizontal guide rail 41, thereby improving the stability of the structure and the smoothness of the movement.

[0063] As an alternative embodiment, see Figure 8 and Figure 9 As shown, the horizontal guide rail 41 has a tapered portion 411, which is located on the side of the horizontal guide rail 41 away from the guide plate 22; the guide wheel 5 has a wheel groove 51, the axial cross-section of the wheel groove 51 is V-shaped, and the inner diameter of the wheel groove 51 gradually increases in the direction away from the axis of the wheel groove 51, the wheel groove 51 is slidably connected to the tapered portion 411 extending therein, and the two opposite groove walls of the wheel groove 51 are respectively located on the upper and lower sides of the tapered portion 411.

[0064] When the grinding mechanism 6 is working, the transverse frame 3 moves horizontally, and the guide wheel 5 with a V-shaped wheel groove 51 limits the freedom of the rail surface in the vertical direction and the length direction of the rail. When the transverse frame 3 moves horizontally, it will only change the transverse parameters and will not change the bevel cutting parameters of the grinding stone, thereby realizing effective intelligent and digital control.

[0065] As an alternative embodiment, see Figure 1 As shown, the horizontal guide rails 41 are located on opposite sides of the base 4, and the guide wheels 5 are located on opposite sides of the transverse frame 3, see Figure 2 As shown, on the same side of the transverse frame 3, the number of guide wheels 5 is more than two.

[0066] The linear motion mechanism formed by the guide wheel and horizontal guide rail 41 can effectively reduce the impact of dust on the linear motion mechanism, prevent jamming, and facilitate dust removal. This mechanism can also be placed inside the grinding head 61, but this will increase the adhesion of dust and grinding sparks to the guide rail and guide wheel, accelerating damage to the linear motion mechanism.

[0067] The transverse positioning device for rail grinding equipment of this embodiment is used. When working, the transverse driving device 1 extends the piston rod to complete the extension of the guide plate 22 to realize the reference loading of the rail curved surface grinding head 61, and the guide plate 22 below the guide plate lifting driving device 27 is lifted. Figure 3As shown, the guide plate 22 is now in a vertical position and rests against the inner side of the rail 100. Under the positioning effect of the guide plate 22, the grinding head 61 of the grinding mechanism 6, under the action of its corresponding drive device, contacts the target surface of the rail 100 and begins to grind the surface of the rail 100. After the grinding head 61 completes grinding a section of the curved surface of the rail 100, it is necessary to move the transverse frame 3 to change the grinding position of the grinding head 61 on the surface of the rail 100. Figure 4 and Figure 5 The arrow direction in the figure indicates the moving direction of the transverse frame 3. Figure 4 As shown, when the guide plate 22 is driven by the guide plate rotation drive device 21 to swing toward the inside of the track 100, the transverse drive device 1 drives the transverse frame 3 to move toward the outside of the track 100, and the guide plate 22 abuts against the inside of the track 100. In the process of the transverse frame 3 moving toward the outside of the track 100 under the action of the transverse drive device 1, it needs to overcome the force between the guide plate 22 and the track 100. This is done gradually and continuously, which facilitates the grinding mechanism 6 to form a continuously moving grinding surface. Figure 5 As shown, when the guide plate 22 is driven by the guide plate rotation drive device 21 to swing toward the outside of the track 100, the traverse frame 3 is driven by the reverse thrust of the track 100 to drive the grinding mechanism 6 to move toward the inside of the track 100. Figure 5 , the track 100 exerts a force on the guide plate 22 and the transverse frame 3 toward the inside of the track 100. Since the power of the guide plate rotation drive device 21 is greater than the power of the transverse drive device 1, the force exerted by the track 100 on the guide plate 22 and the transverse frame 3 toward the inside of the track 100 is greater than the power of the transverse drive device 1. The transverse drive device 1 contracts under the action of this reaction force, as shown in FIG. Figure 5 As shown, the traverse frame 3 now moves horizontally toward the inside of the track 100. As the guide plate 22 continuously swings, the traverse 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, thereby improving the grinding effect.

[0068] In the prior art, the current positioning method for curved surface grinding has three degrees of freedom, two longitudinally and one vertically. If the horizontal movement of the traverse frame 3 is driven solely by the push or pull of a hydraulic cylinder, pneumatic cylinder, or electric cylinder, the following problems will arise: the precise control of the extension and retraction of the telescopic rod each time, but the control of the horizontal movement of the traverse frame 3 is nonlinear, making it difficult to establish a mathematical model. Even if the telescopic rod is extended or retracted a small distance each time, the movement of the grinding head 61 with the traverse frame 3 is intermittent and discontinuous. Therefore, manual confirmation is required in actual operation, making it difficult to achieve digitalization and automation, and increasing labor costs. In this embodiment, the guide plate 22 of the traverse positioning device cooperates with the traverse drive device 1 to achieve continuous and uninterrupted precise displacement of the grinding head 61, facilitating automation and digitization.

[0069] Example 2:

[0070] This embodiment provides a rail grinding device, including a grinding mechanism 6 and the transverse positioning device for the rail grinding device of the above embodiment, which can realize the grinding of the surface of the rail 100, including the grinding of the flat surface and curved surface on the rail 100.

[0071] The rail grinding equipment of this embodiment has the above-mentioned transverse movement positioning device for rail grinding equipment, so it can improve the accuracy of horizontal transverse movement, ensure the formation of a continuous and uninterrupted grinding surface, facilitate the automation and digitization of the equipment, and improve the grinding efficiency.

[0072] The transverse moving frame 3 can be expanded to facilitate the installation of multiple grinding heads 61 and assemble a practical multi-grinding head grinding trolley frame.

[0073] In the description of this specification, specific features, structures, or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0074] In the description of this specification, the reference terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction 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, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0075] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A transverse positioning device for rail grinding equipment, characterized in that: It includes a transverse driving device, a guide plate rotation driving device, a guide plate and a transverse frame for loading a grinding mechanism, wherein: The transverse driving device is drivingly connected to the transverse frame, and is used to drive the transverse frame to move horizontally back and forth on the vehicle body; The guide plate is rotatably connected to the transverse frame, and the guide plate rotation driving device is in transmission connection with the guide plate, and is used to drive the guide plate to rotate on the transverse frame; When the guide plate abuts against the inner side of the track and swings toward the inner side of the track under the drive of the guide plate rotation drive device, the transverse driving device drives the transverse frame to drive the grinding mechanism to move toward the outer side of the track; when the guide plate abuts against the inner side of the track and swings toward the outer side of the track under the drive of the guide plate rotation drive device, the transverse frame drives the grinding mechanism to move toward the inner side of the track under the reverse thrust of the track; The power of the guide plate rotation drive device is greater than the power of the transverse drive device. When the guide plate abuts against the inner side of the track and swings toward the outer side of the track under the drive of the guide plate rotation drive device, the transverse drive device retracts under the action of the transverse frame. The transverse positioning device further includes a connecting frame, wherein: the fixed end of the guide plate rotation drive device is rotatably connected to the transverse frame, and the telescopic end thereof is rotatably connected to the connecting frame, the connecting frame is rotatably connected to the lower end of the transverse frame via a rotating shaft, and the guide plate is located at the lower end of the connecting frame; The guide plate rotation drive device can drive the connecting frame to swing when it is extended or retracted, so that the guide plate rotates around the rotating shaft in a vertical plane in a direction toward the inside of the track or toward the outside of the track.

2. The lateral positioning device for rail grinding equipment according to claim 1, characterized in that: The transverse positioning device also includes a guide plate lifting drive device and a lifting frame, wherein: The fixed end of the guide plate lifting drive device is fixed to the connecting frame, and the driving end thereof is rotatably connected to the lifting frame. At least a portion of the lifting frame extends into the cavity of the connecting frame and is slidably connected to the connecting frame. The guide plate is connected to the bottom end of the lifting frame. The guide plate lifting drive device can drive the lifting frame to extend out of the connecting frame or retract into the connecting frame, thereby realizing the lowering or lifting of the guide plate.

3. The lateral positioning device for rail grinding equipment according to claim 2, characterized in that: The guide plate is fixed to the bottom end of the lifting frame through a shaft, and the axial direction of the shaft is perpendicular to the axial direction of the rotating shaft.

4. The lateral positioning device for rail grinding equipment according to claim 1, characterized in that: The transverse positioning device further comprises a base, the base being fixed to the vehicle body, the fixed end of the transverse driving device being fixed to the base, and the telescopic end thereof being hinged to the transverse frame; A horizontal guide rail is provided on the base, and a guide wheel is rotatably connected to the transverse frame. The guide wheel is located on the outer side or the inner side of the guide plate, and the guide wheel rolls along the horizontal guide rail.

5. The transverse positioning device for rail grinding equipment according to claim 4, characterized in that: The horizontal guide rail has a tapered portion, and the tapered portion is located on a side of the horizontal guide rail facing away from the guide plate; 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 cone portion extending therein, and the two opposite groove walls of the wheel groove are respectively located on the upper and lower sides of the cone portion.

6. The lateral positioning device for rail grinding equipment according to claim 4, characterized in that: The horizontal guide rails are located on two opposite sides of the base, and the guide wheels are located on two opposite sides of the transverse frame. On the same side of the transverse frame, there are more than two guide wheels.

7. The transverse positioning device for rail grinding equipment according to claim 1, characterized in that: The guide plate includes a guide peripheral wall, which is an arc-shaped curved surface and fits the inner side of the track.

8. A rail grinding device, characterized in that: The invention comprises a grinding mechanism and a transverse positioning device for rail grinding equipment according to any one of claims 1 to 7.

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