Steel rail grinding device and adjusting and locking mechanism thereof

Abstract

The invention provides an adjusting and locking mechanism for a steel rail polishing device. The adjusting and locking mechanism comprises a first adjusting assembly, a second adjusting assembly and a locking piece. Wherein the first adjusting assembly is used for being rotationally connected with the fixing frame, the second adjusting assembly is used for being connected with the grinding assembly, and the locking piece is arranged between the first adjusting assembly and the second adjusting assembly. The invention further provides a steel rail grinding device, the steel rail grinding device comprises at least two adjusting and locking mechanisms for the steel rail grinding device, a fixing frame and at least two grinding assemblies, and the grinding assemblies are connected to the fixing frame through the adjusting and locking mechanisms. The polishing device has the beneficial effects that the position of the polishing assembly can be effectively adjusted through cooperative action of the first adjusting assembly, the second adjusting assembly and the locking piece, so that rapid and accurate polishing operation is carried out, and the operation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of railway track engineering, and in particular to a rail grinding device and an adjusting and locking mechanism thereof. Background Art

[0002] Rails are one of the necessary infrastructures for the normal operation of the railway system. The performance of rails will directly affect the safety and stability of trains. Rail grinding devices are an important equipment for rail maintenance and repair. The purpose of rail grinding is to repair and maintain the rail shape, reduce surface wear and rust defects, increase the service life of rails, and improve the safety and comfort of train driving.

[0003] At present, the rail grinding device in the relevant technology generally includes a bracket, a rotating mechanism and a motor with a grinding wheel. The fixed end of the rotating mechanism is rotatably connected to the bracket. The motor is arranged at the rotating end of the rotating mechanism and moves up and down in the vertical direction under the action of pressure to grind the rail to eliminate the cracks of the rail and repair the rail. Although this rail grinding device can repair the contour wear of the rail well, it is only suitable for a small range of grinding operations. When the rail is long, it needs to be moved repeatedly to achieve long-distance grinding, and the grinding efficiency is low. In particular, when grinding the wavy wear of the rail, due to the limitation of its structure, the wavy wear of the rail with a larger wavelength cannot be repaired, resulting in poor grinding effect and relatively low efficiency.

[0004] Therefore, it is necessary to study a rail grinding device and an adjustment locking mechanism thereof to solve the above problems or alleviate the effects of the above problems. Summary of the invention

[0005] On one hand, the present invention provides an adjustment locking mechanism for a rail grinding device, which can effectively adjust the position of the grinding component through the cooperation of a first adjustment component, a second adjustment component and a locking member to perform fast and accurate grinding operations and improve operating efficiency.

[0006] The adjusting and locking mechanism for the rail grinding device of the present invention is used to connect the grinding assembly and the fixing frame, and the adjusting and locking mechanism comprises a first adjusting assembly, a second adjusting assembly and a locking member;

[0007] Wherein, the first adjustment component is used to be rotatably connected to the fixing frame, the second adjustment component is used to be connected to the grinding component, and the locking member is arranged between the first adjustment component and the second adjustment component;

[0008] The locking member can lock or unlock the first adjustment component and the second adjustment component. The first adjustment component can adjust the lateral position of the grinding component by rotation when in a locked state, and the second adjustment component can adjust the longitudinal position of the grinding component by movement when in an unlocked state.

[0009] In one embodiment, the first adjustment assembly includes a mounting sleeve, and the mounting sleeve is used to be rotatably connected to the fixing frame;

[0010] The second adjustment component includes a connecting shaft, which is movably inserted into the mounting sleeve, and one end of the connecting shaft is used to be connected to the grinding component.

[0011] In one embodiment, the locking member is a hydraulic expansion sleeve, which is disposed between the mounting sleeve and the connecting shaft and can lock or unlock the connecting shaft and the mounting sleeve.

[0012] In one embodiment, the first adjustment assembly further includes a connecting flange rotatably connected to the outer periphery of the mounting sleeve, and the connecting flange is used for fixed connection with the fixing frame.

[0013] In one embodiment, at least one connecting portion rotatably connected to the connecting flange is provided on the outer circumference of the mounting sleeve, and a copper sleeve is nested between the connecting portion and the connecting flange.

[0014] In one embodiment, the second adjustment assembly further comprises a connecting bearing disposed at one end of the connecting shaft, and the connecting bearing is used to be connected to the grinding assembly.

[0015] In one embodiment, the connecting bearing is rotatably connected to the connecting plate on the grinding assembly via a pin.

[0016] Another aspect of the present invention provides a rail grinding device, which comprises at least two adjusting and locking mechanisms for the rail grinding device as described above, a fixing frame and at least two grinding assemblies, wherein the grinding assemblies are connected to the fixing frame via the adjusting and locking mechanisms.

[0017] In one embodiment, the rail grinding device further comprises a driving mechanism, which can drive corresponding components of the adjustment and locking mechanism to perform an adjustment or locking action.

[0018] In one embodiment, the rail grinding device further includes a detection mechanism and a control mechanism, wherein the detection mechanism can capture the longitudinal position and lateral position of the plurality of grinding assemblies arranged on the fixed frame in real time, and the control mechanism can control the adjustment locking mechanism to adjust the position of the grinding assembly.

[0019] The adjusting and locking mechanism for a rail grinding device provided by the present invention has at least the following beneficial effects compared with the prior art:

[0020] The adjusting and locking mechanism for the rail grinding device of the present invention can effectively adjust the position of the grinding component through the cooperation of the first adjusting component, the second adjusting component and the locking member, so as to perform fast and accurate grinding operations and improve operation efficiency.

[0021] The rail grinding device provided by the present invention also has the above-mentioned beneficial effects because it includes the above-mentioned adjusting and locking mechanism for the rail grinding device. In addition, at least two grinding assemblies can be connected and locked to the fixed frame at the same time by adjusting the locking mechanism, so that multiple grinding assemblies can work together, improve the grinding efficiency, and quickly eliminate rail corrugation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0023] Figure 1 is a structural schematic diagram of an adjustment locking mechanism of an embodiment of the present invention;

[0024] Figure 2 yes Figure 1 a cross-sectional view of;

[0025] Figure 3 It is a structural schematic diagram of the adjustment locking mechanism of the embodiment of the present invention when adjusting the lateral position change of the grinding assembly;

[0026] Figure 4 yes Figure 3 A side view of;

[0027] Figure 5 is a structural schematic diagram of a rail grinding device according to an embodiment of the present invention;

[0028] Figure 6 It is a front view of the rail grinding device according to the embodiment of the present invention.

[0029] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale.

[0030] Reference numerals:

[0031] 1-fixed frame, 2-connecting flange, 3-copper sleeve, 4-mounting sleeve, 41-connecting part, 5-connecting shaft, 6-hydraulic expansion sleeve, 7-connecting bearing, 8-pin shaft, 9-grinding assembly, 10-cotter pin, 11-grinding wheel. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] Example 1

[0034] like Figures 1 to 4 As shown, the adjusting and locking mechanism for the rail grinding device of the present invention is used to connect the grinding assembly 9 and the fixing frame 1, and the adjusting and locking mechanism includes a first adjusting assembly, a second adjusting assembly and a locking member;

[0035] The first adjustment component is used to be rotatably connected to the fixing frame 1, the second adjustment component is used to be connected to the grinding component 9, and the locking member is arranged between the first adjustment component and the second adjustment component;

[0036] The locking member can lock or unlock the first adjustment component and the second adjustment component. The first adjustment component can adjust the lateral position of the grinding component 9 by rotation in the locked state, and the second adjustment component can adjust the longitudinal position of the grinding component 9 by movement in the unlocked state.

[0037] Specifically, the adjustment locking mechanism includes a first adjustment component, a second adjustment component and a locking member, wherein the locking member is used to lock or unlock the second adjustment component with the first adjustment component, and the first adjustment component and the second adjustment component are used to adjust the position of the grinding component 9.

[0038] The first adjustment component is rotatably connected to the fixing frame 1, that is, the first adjustment component can rotate relative to the fixing frame 1. When the locking member locks the second adjustment component to the first adjustment component, the grinding component 9 connected to the second adjustment component is also locked to the first adjustment component. Under the action of rotation, the first adjustment component can drive the grinding component 9 to rotate to adjust the lateral position of the grinding component 9. It should be noted that at this time, the longitudinal position of the grinding component 9 is locked, that is, the second adjustment component does not move, and its lateral position is adjusted by the first adjustment component. Among them, the lateral position is as follows Figure 1 The front and back position in Figure 4 The vertical position is Figure 1 The upper and lower positions in the middle.

[0039] The second adjustment component is connected to the grinding component 9. The grinding component 9 and the second adjustment component can be directly connected or connected and fixed by a connecting piece. When the locking piece releases the lock between the second adjustment component and the first adjustment component, the second adjustment component can drive the grinding component 9 to move to adjust the longitudinal position of the grinding component 9. As a preferred embodiment, the second adjustment component can be a cylinder, which can lift or lower the grinding component 9 to change its longitudinal position when the cylinder is in operation. In this way, when the grinding wheels 11 (such as Figure 5 and Figure 6) when the wear of the grinding wheel 11 is inconsistent, there is no need to replace the grinding wheel 11. The longitudinal position of the grinding assembly 9 can be directly adjusted to achieve the movement of the grinding wheel 11 for grinding operation, thereby improving the grinding efficiency.

[0040] The locking member is arranged between the second adjustment component and the first adjustment component, and is used to lock or unlock the second adjustment component with the first adjustment component. Specifically, when the grinding component 9 needs to change its longitudinal position, the locking member does not act, and the second adjustment component and the first adjustment component are in a separated state (i.e., unlocked state), and the grinding component 9 can adjust its longitudinal position under the movement of the second adjustment component; when the grinding component 9 needs to change its transverse position, the locking member acts, so that the second adjustment component and the first adjustment component are in a locked state, and the second adjustment component does not act, i.e., the grinding component 9 is locked in the longitudinal direction, and the rotation of the first adjustment component can drive the grinding component 9 to adjust its transverse position.

[0041] In general, the adjustment and locking mechanism can make the grinding assembly 9 move in the longitudinal direction and be locked by the locking member at any position through the arrangement of the first adjustment component, the second adjustment component and the locking member, and after the longitudinal position of the grinding assembly 9 is locked, the horizontal position of the grinding assembly 9 can also be adjusted through the first adjustment component. In this way, the position of the grinding assembly 9 can be effectively adjusted through the cooperation of the first adjustment component, the second adjustment component and the locking member, so as to ensure that the grinding assembly 9 can perform the grinding operation quickly and accurately, thereby improving the working efficiency.

[0042] In an example, Figures 1 to 4 As shown, the first adjustment assembly includes a mounting sleeve 4, and the mounting sleeve 4 is used to be rotatably connected to the fixing frame 1;

[0043] The second adjustment assembly includes a connecting shaft 5 , which is movably inserted into the mounting sleeve 4 , and one end of the connecting shaft 5 is used to be connected to the grinding assembly 9 .

[0044] Specifically, the mounting sleeve 4 can be rotatably connected to the fixing frame 1, and the connecting shaft 5 is movably arranged in the mounting sleeve 4 and is used to connect with the grinding assembly 9. In this way, the connecting shaft 5 can move relative to the mounting sleeve 4, that is, drive the grinding assembly 9 to move, so as to change the longitudinal position of the grinding assembly 9; the mounting sleeve 4 can rotate relative to the fixing frame 1, and when the locking member locks the connecting shaft 5 and the mounting sleeve 4, the rotation of the mounting sleeve 4 can drive the grinding assembly 9 to rotate through the connecting shaft 5, so as to change the lateral position of the grinding assembly 9.

[0045] It should be noted that the connection between the connecting shaft 5 and the grinding assembly 9 is a detachable connection, such as a threaded connection or a bolted connection. The structural form and size of the mounting sleeve 4 are not limited in this embodiment, and can meet the use requirements. The connecting shaft 5 is movably arranged in the mounting sleeve 4, and the movement of the connecting shaft 5 can be achieved by a lifting member or a hydraulic member, and there is no specific limitation, as long as the movement function can be achieved.

[0046] Furthermore, the connecting shaft 5 is coaxially arranged with the mounting sleeve 4 , and the connecting shaft 5 can move along the axial direction of the mounting sleeve 4 .

[0047] Specifically, the connecting shaft 5 is coaxially arranged with the mounting sleeve 4, that is, the mounting sleeve 4 is an annular sleeve, and the second adjustment assembly can drive the connecting shaft 5 to move in the mounting sleeve 4 by hydraulic, lifting and other driving methods and act on the grinding assembly 9 to perform longitudinal adjustment. The moving direction of the connecting shaft 5 is along the axial direction of the mounting sleeve 4 to ensure the precise movement of the grinding assembly 9 and the connecting shaft 5.

[0048] In an example, Figures 1 to 4 As shown, the locking member is a hydraulic expansion sleeve 6 , which is arranged between the mounting sleeve 4 and the connecting shaft 5 , and can lock or unlock the connecting shaft 5 and the mounting sleeve 4 .

[0049] Specifically, the locking member is configured as a hydraulic expansion sleeve 6, and one or more may be configured. The hydraulic expansion sleeve 6 is used to realize locking and unlocking (i.e., releasing the lock) between the connecting shaft 5 and the mounting sleeve 4. By adopting the hydraulic expansion locking method, the connecting shaft 5 can be locked at any position in the mounting sleeve 4, and then the mounting sleeve 4 and the connecting shaft 5 are combined to perform the lateral position adjustment operation and the longitudinal position adjustment operation of the grinding assembly 9 accordingly.

[0050] The hydraulic expansion sleeve 6 is arranged between the installation sleeve 4 and the connecting shaft 5, and the three are arranged coaxially. The hydraulic expansion sleeve 6 can realize the locking of the connecting shaft 5 at any axial position. The grinding assembly 9 is connected to the connecting shaft 5, that is, the grinding assembly 9 is locked in the longitudinal position through the arrangement of the hydraulic expansion sleeve 6. In this way, after the hydraulic expansion sleeve 6 realizes the longitudinal locking between the grinding assembly 9 and the installation sleeve 4, the lateral position of the grinding assembly 9 can be adjusted through the installation sleeve 4.

[0051] In an example, Figures 1 to 4 As shown, the first adjustment assembly also includes a connecting flange 2 rotatably connected to the outer periphery of the mounting sleeve 4 , and the connecting flange 2 is used for fixed connection with the fixing frame 1 .

[0052] Specifically, the connection flange 2 and the fixing frame 1 are preferably connected by screws, with a firm and reliable connection being the standard, so that the connection between the installation sleeve 4 and the fixing frame 1 is achieved through the setting of the connection flange 2.

[0053] In an example, Figures 1 to 4As shown, at least one connecting portion 41 rotatably connected to the connecting flange 2 is provided on the outer circumference of the mounting sleeve 4 , and a copper sleeve 3 is nested between the connecting portion 41 and the connecting flange 2 .

[0054] Specifically, each connection portion 41 corresponds to a set of connection flanges 2 , and the connection portions 41 are arranged to ensure the rotational connection between the mounting sleeve 4 and the fixing frame 1 .

[0055] A copper sleeve 3 is provided between the connecting portion 41 and the connecting flange 2, which can reduce the wear between the connecting portion 41 and the connecting flange 2 during the rotation of the mounting sleeve 4, reduce the conflict and friction between the two, and enhance the connection stability between the mounting sleeve 4 and the connecting flange 2.

[0056] Furthermore, two symmetrical connecting parts 41 are provided on the outer circumference of the installation sleeve 4 to connect the two connecting flanges 2 to the fixing frame 1 correspondingly, so as to further ensure the reliable stability of the rotational connection between the installation sleeve 4 and the fixing frame 1 .

[0057] In an example, Figures 1 to 4 As shown, the second adjustment assembly further includes a connecting bearing 7 disposed at one end of the connecting shaft 5 , and the connecting bearing 7 is used to be connected to the grinding assembly 9 .

[0058] Specifically, one end of the connecting bearing 7 is connected to the connecting shaft 5, and the other end of the connecting bearing 7 is connected to the grinding assembly 9. Through the setting of the connecting bearing 7, the connection between the connecting shaft 5 and the grinding assembly 9 is indirectly achieved.

[0059] Furthermore, the connection between the connecting bearing 7 and the connecting shaft 5 is preferably a threaded connection, which is convenient for assembly and disassembly, and the connection between the connecting bearing 7 and the grinding assembly 9 can be a rotating connection.

[0060] In an example, Figures 1 to 4 As shown, the connecting bearing 7 is rotatably connected to the connecting plate on the grinding assembly 9 through a pin 8.

[0061] Specifically, Figures 1 to 3 As shown, two connecting plates are provided at the upper end of the grinding assembly 9, and the connecting bearing 7 is provided between the two connecting plates. Holes corresponding to the connecting bearing 7 are provided on the connecting plates. The connecting bearing 7 and the grinding assembly 9 can be connected in rotation by passing the pin 8 through the corresponding holes on the connecting plates and the connecting bearing 7. The connection between the connecting bearing 7 and the grinding assembly 9 can be released by pulling out the pin 8. The operation is simple and quick.

[0062] Furthermore, if Figures 1 to 4As shown, a cotter pin 10 is provided on the pin shaft 8. The cotter pin 10 is inserted into the pin hole on the portion of the pin shaft 8 protruding from the connecting plate. The cotter pin 10 can prevent the pin shaft 8 from deviating and sliding during use, and prevent the pin shaft 8 from falling off, which affects the use of the grinding assembly 9. One or two cotter pins 10 can be provided.

[0063] Example 2

[0064] like Figures 1 to 6 As shown, the rail grinding device of the present invention comprises at least two of the above-mentioned adjusting and locking mechanisms for rail grinding devices, a fixing frame 1 and at least two grinding assemblies 9, and the grinding assemblies 9 are all connected to the fixing frame 1 through the adjusting and locking mechanisms.

[0065] Specifically, the fixing frame 1 is a support frame of the entire rail grinding device, and needs to have good rigidity and strength to ensure safety and stability during use. The overall size of the fixing frame 1 is not limited here, and is subject to meeting the actual grinding operation requirements.

[0066] At least two grinding assemblies 9 are detachably connected to the lower end of the fixing frame 1 by adjusting the locking mechanism. The grinding assemblies 9 are used for rail grinding operations, and the distance between the grinding assemblies 9 and the fixing frame 1 is adjustable.

[0067] One end of the adjustable locking mechanism is connected to the fixed frame 1 , and the other end thereof is connected to the grinding assembly 9 , and the adjustable locking mechanism can lock or unlock the grinding assembly 9 and the fixed frame 1 .

[0068] In specific applications, when the wear of the grinding component 9 on the rail grinding device is inconsistent, the locking state between the grinding component 9 and the fixed frame 1 is released. After adjusting the position of the grinding component 9, it can be locked on the fixed frame 1 by adjusting the locking mechanism to perform fast and accurate grinding operations. There is no need to replace the grinding component 9, thereby reducing operating costs.

[0069] And the positions of the multiple grinding assemblies 9 do not need to be adjusted too much. By adjusting the locking mechanism, at least two grinding assemblies 9 can be directly locked on the same fixed frame 1. The grinding operation can be carried out by pressing down the fixed frame 1, thereby eliminating the long wave grinding of the rail, so as to carry out fast and efficient rail grinding operations and improve the grinding efficiency.

[0070] More specifically, the rail grinding device performs grinding operations through the grinding wheel 11 on the grinding assembly 9 to repair and maintain the rail shape, reduce defects such as wear and corrosion on the rail surface, and increase the service life of the rail. The arrangement and setting position of the grinding assembly 9 on the fixed frame 1 are not limited.

[0071] In special circumstances, if the grinding assembly 9 needs to be replaced, it can be replaced through the detachable connection between the grinding assembly 9 and the fixing frame 1, which is convenient for disassembly and assembly, and convenient and quick for replacement.

[0072] In general, when the rail grinding device needs to perform grinding operations, at least two grinding components 9 can be locked on the fixed frame 1 by adjusting the locking mechanism, so that multiple grinding components 9 can work together, improve the grinding efficiency, and quickly eliminate rail corrugation; and the distance between the grinding component 9 and the fixed frame 1 is adjustable. When the wear of the grinding component 9 is inconsistent, there is no need to replace the grinding component 9. The locking state between the grinding component 9 and the fixed frame 1 can be released first, and then the position of the grinding component 9 can be adjusted. Finally, it can be locked on the fixed frame 1 by adjusting the locking mechanism, and then the grinding operation can be carried out quickly and effectively, thereby reducing the operation cost.

[0073] In one example, the rail grinding device further includes a driving mechanism (not shown in the drawings), which can drive corresponding components of the adjustment and locking mechanism to perform adjustment or locking actions.

[0074] Specifically, the driving mechanism includes at least a first driving member, a second driving member and a third driving member. The first driving member can drive the first adjusting component to rotate to adjust the lateral position of the grinding component 9; the second driving member can drive the second adjusting component to move to adjust the longitudinal position of the grinding component 9; the third driving member can drive the locking member to lock or unlock to lock the position of the grinding component 9.

[0075] In one example, the rail grinding device also includes a detection mechanism and a control mechanism (not shown in the drawings), the detection mechanism can capture the longitudinal position and lateral position of multiple grinding assemblies 9 arranged on the fixed frame 1 in real time, and the control mechanism can control the adjustment locking mechanism to adjust the position of the grinding assembly 9.

[0076] Specifically, the detection mechanism can use high-precision sensors and image processing technology to capture the longitudinal and lateral positions of the multiple grinding assemblies 9 set on the fixed frame 1 in real time. Specifically, when the grinding device is working on the rail, the detection mechanism will continuously scan and identify the relative position relationship between the grinding assembly 9 and the rail. These position data will be transmitted to the control mechanism in real time to provide a basis for its subsequent position adjustment.

[0077] At the same time, after receiving the position data from the detection mechanism, the control mechanism can quickly analyze and process it. If it is found that the position of a grinding component 9 deviates from the preset value, the control mechanism will immediately issue an instruction to adjust the position of the grinding component 9 by adjusting the locking mechanism. This adjustment can be longitudinal, transverse, or both transverse and longitudinal, to ensure that each grinding component 9 can accurately act on the specified position of the rail.

[0078] In addition, the control mechanism can also be connected to the remote monitoring center to realize remote monitoring and fault diagnosis, further improving the operational reliability and maintenance convenience of the rail grinding device.

[0079] The introduction of such detection and control mechanisms can enable the rail grinding device to have a higher level of intelligence and automation in terms of position capture and position adjustment, thereby ensuring the accuracy and efficiency of grinding and improving the maintenance quality and operating efficiency of the rails.

[0080] In one example, the rail grinding device can lock the grinding assembly 9 at any position by adjusting the locking mechanism to meet different operation requirements. The locking mechanism can be adjusted to lock a single grinding assembly 9 or multiple grinding assemblies 9 at the same time.

[0081] Furthermore, the adjustment locking mechanism can rotate the plurality of grinding assemblies 9 along the rail profile at different angles and then lock them by adjusting the first adjustment assembly and the second adjustment assembly in combination with the locking of the locking member, so that the rail grinding device can achieve full coverage grinding of the entire rail profile after passing through the rail once. This can improve the rail grinding efficiency.

[0082] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An adjustment locking mechanism for a rail grinding device, used to connect a grinding assembly and a fixing frame, characterized in that: The adjustment locking mechanism comprises a first adjustment component, a second adjustment component and a locking member; Wherein, the first adjustment component is used to be rotatably connected to the fixing frame, the second adjustment component is used to be connected to the grinding component, and the locking member is arranged between the first adjustment component and the second adjustment component; The locking member can lock or unlock the first adjustment component and the second adjustment component. The first adjustment component can adjust the lateral position of the grinding component by rotation when in a locked state, and the second adjustment component can adjust the longitudinal position of the grinding component by movement when in an unlocked state.

2. The adjusting and locking mechanism for rail grinding device according to claim 1, characterized in that: The first adjustment assembly includes a mounting sleeve, and the mounting sleeve is used to be rotatably connected to the fixing frame; The second adjustment component includes a connecting shaft, which is movably inserted into the mounting sleeve, and one end of the connecting shaft is used to be connected to the grinding component.

3. The adjusting and locking mechanism for rail grinding device according to claim 2, characterized in that: The locking member is a hydraulic expansion sleeve, which is arranged between the mounting sleeve and the connecting shaft and can lock or unlock the connecting shaft and the mounting sleeve.

4. The adjusting and locking mechanism for a rail grinding device according to claim 2, characterized in that: The first adjustment assembly also includes a connecting flange rotatably connected to the outer periphery of the mounting sleeve, and the connecting flange is used for fixed connection with the fixing frame.

5. The adjusting and locking mechanism for rail grinding device according to claim 4, characterized in that: At least one connecting portion rotatably connected to the connecting flange is provided on the outer circumference of the mounting sleeve, and a copper sleeve is nested between the connecting portion and the connecting flange.

6. The adjusting and locking mechanism for a rail grinding device according to any one of claims 2 to 5, characterized in that: The second adjustment assembly further includes a connecting bearing disposed at one end of the connecting shaft, and the connecting bearing is used to be connected to the grinding assembly.

7. The adjusting and locking mechanism for rail grinding device according to claim 6, characterized in that: The connecting bearing is rotatably connected to the connecting plate on the grinding assembly through a pin.

8. A rail grinding device, characterized in that: The rail grinding device comprises at least two adjusting and locking mechanisms for rail grinding devices according to any one of claims 1 to 7, a fixing frame and at least two grinding assemblies, wherein the grinding assemblies are all connected to the fixing frame via the adjusting and locking mechanisms.

9. The rail grinding device according to claim 8, characterized in that: The rail grinding device further comprises a driving mechanism, which can drive corresponding components of the adjustment and locking mechanism to perform adjustment or locking actions.

10. The rail grinding device according to claim 8, characterized in that: The rail grinding device also includes a detection mechanism and a control mechanism. The detection mechanism can capture the longitudinal position and lateral position of the plurality of grinding assemblies arranged on the fixed frame in real time, and the control mechanism can control the adjustment locking mechanism to adjust the position of the grinding assembly.

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