Hydraulic rail gap adjusting device

Abstract

The utility model provides a hydraulic rail gap adjusting device which comprises a frame part, a first adjusting part, a second adjusting part and a hydraulic driving part, the first adjusting part, the second adjusting part and the hydraulic driving part are all arranged in the frame part, and the first adjusting part and the hydraulic driving part are arranged at the two ends of the frame part respectively. The second adjusting part is arranged between the first adjusting part and the hydraulic driving part, the second adjusting part is connected with the hydraulic driving part, and under the condition that the hydraulic driving part is driven, the second adjusting part moves towards the first adjusting part and is used for adjusting the gap between the first section of track and the second section of track. The hydraulic rail gap adjusting device can achieve single-person operation, is simple in overall structure, light in weight and convenient to install and carry, can provide driving force without additionally arranging a pump station and a hydraulic driving part, saves labor force, reduces labor intensity, further enables operation tasks to be easier and more convenient, reduces equipment on-line difficulty, and is easier to operate.

Description

Technical Field

[0001] The present application relates to the technical field of rail gap adjusting devices, and in particular to a hydraulic rail gap adjusting device. Background Art

[0002] When adjusting the gap between rail joints, a certain gap must be maintained at the rail joints when laying rails on railway lines. If there is no gap, temperature fluctuations will generate internal stress in the longitudinal direction of the rails. When this stress exceeds a certain level, the rails will move laterally, causing a runway phenomenon and disrupting the normal state of the line. When laying the line, the gap is not adjusted within the rail temperature limit, the gap size is not calculated according to the railway standards, and the standard size of the gap is not effectively controlled during construction; when replacing rails, rails of equal length are not used; during maintenance, the torque of the joint bolts does not meet the specified requirements, the clamping pressure of the line fasteners and the anti-climbing equipment are insufficient, and various other combined reasons will all lead to an increase in the gap between rail joints.

[0003] When the joint gap is too large, the train will cause a low joint on the line. The wheels will generate impact force at this point, causing accelerated wear at the rail joint. In severe cases, the rail head may fall off or even cause the train to derail. Therefore, when the gap is too large, it needs to be adjusted. The effective method is to reduce the joint gap to the specified range by pulling the rails to ensure driving safety.

[0004] Currently, most equipment for adjusting the gap between rail joints is a stretching machine. The entire equipment is driven by a hydraulic system, which has sufficient power and high rail pulling efficiency, and can effectively reduce the joint gap. However, the equipment is heavy as a whole and requires an external pump station. The total weight of the equipment and the pump station is about 300kg. At least three people are required to complete the operation task. In addition, multiple oil pipelines are connected between the equipment and the pump station, making it more complicated to operate.

[0005] Therefore, it is necessary to design a hydraulic rail gap adjustment device to solve the above problems. Utility Model Content

[0006] In view of this, in order to overcome the defects of the existing technology, the utility model provides a hydraulic rail gap adjustment device, which effectively solves the problems that the existing rail gap adjustment device is heavy, requires an external pump station, requires at least 3 people to complete the operation task, and multiple oil pipes are connected between the equipment and the pump station, making the operation more complicated.

[0007] According to the utility model, a hydraulic rail gap adjustment device is provided for adjusting the gap between two sections of rail, wherein the hydraulic rail gap adjustment device includes a frame part, a first adjustment part for clamping the first section of rail, a second adjustment part for clamping the second section of rail and a hydraulic drive part, the first adjustment part, the second adjustment part and the hydraulic drive part are all arranged inside the frame part, the first adjustment part and the hydraulic drive part are respectively arranged at two ends of the frame part, the second adjustment part is arranged between the first adjustment part and the hydraulic drive part, the second adjustment part is connected to the hydraulic drive part, and when the hydraulic drive part is driven, the second adjustment part moves toward the first adjustment part to adjust the gap between the first section of rail and the second section of rail.

[0008] Preferably, the first adjustment portion and the hydraulic drive portion are both detachably connected to the frame portion.

[0009] Preferably, a first connecting hole is provided on a side of the first adjustment part facing the first end of the frame part, and the first adjustment part is detachably connected to the frame part through the first connecting hole and the first connecting member; a second connecting hole is provided on a side of the hydraulic drive part facing the second end of the frame part, and the hydraulic drive part is detachably connected to the frame part through the second connecting hole and the second connecting member.

[0010] Preferably, the first adjustment portion includes a first driving member, a first locking member and a first movable member, the first end of the first locking member is connected to the frame portion, the second end of the first locking member is connected to the first driving member, the first movable member is pivotally arranged at the lower portion of the first driving member, the first locking member is driven by the first driving member to clamp the first section of the track, and the first movable member can be placed on the first section of the track to achieve movement.

[0011] Preferably, the first locking member includes a first clamping body and an inclined iron piece, and the first clamping body is provided with an inclined rail portion on a side facing the first section of the track, and the inclined rail portion includes a fixed block and a guide bevel, and both ends of the inclined rail portion are provided with a fixed block and a guide bevel, the inclined iron piece is arranged at the guide bevel, the fixed block is provided with a slide rail, and the inclined iron piece is provided with a slideway, and the inclined iron piece is slidable by the cooperation of the slideway and the slide rail.

[0012] Preferably, the first driving member includes a first pull rod, a first link block and a first positioning block, the first positioning block is provided on the first clamping body, and the first pull rod is connected to the oblique iron member through the first link block.

[0013] Preferably, the first moving member includes a first pulley and a first connecting rod, the first end of the first connecting rod is pivotally disposed on the first positioning block, and the second end of the first connecting rod is provided with the first pulley.

[0014] Preferably, the second adjustment portion includes a second driving member, a second locking member and a second movable member, the first end of the second locking member is connected to the frame portion, the second end of the second locking member is connected to the second driving member, the second movable member is pivotally arranged at the lower portion of the second driving member, the second locking member is driven by the second driving member to clamp the second section of the track, and the second movable member can be placed on the second section of the track to achieve movement.

[0015] Preferably, the second locking member includes a second clamping body; the hydraulic drive unit includes a shift rod, an oil tank, an oil cylinder and a spring, the oil tank is arranged on the upper part of the second clamping body, the oil cylinder and the spring are arranged between the second end of the frame part and the second clamping body, the oil cylinder is connected to the oil tank through the second clamping body, and the shift rod is arranged in the oil tank so that the hydraulic oil in the oil tank can enter the oil cylinder.

[0016] Preferably, the frame portion includes a first frame block located at the first end, a second frame block located at the second end, and a connecting rod connecting the first frame block and the second frame block.

[0017] According to the hydraulic rail gap adjustment device of the present invention, through the cooperation of the first adjustment part, the second adjustment part, the frame part and the hydraulic drive part, single-person operation can be achieved, and the overall structure is simple and light in weight, which is convenient for installation and transportation. There is no need to set up an additional pump station. The hydraulic drive part can provide driving force, saving labor and reducing labor intensity, thereby making the operation task easier and more convenient, reducing the difficulty of equipment online, and simplifying operation.

[0018] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A schematic structural diagram of a hydraulic rail gap adjustment device according to an embodiment of the present utility model is shown;

[0021] Figure 2 An exploded view of a hydraulic rail gap adjusting device according to an embodiment of the present utility model is shown;

[0022] Figure 3 A side view of a hydraulic rail gap adjusting device according to an embodiment of the present utility model is shown;

[0023] Figure 4 Showing the embodiment according to the present invention Figure 3 An enlarged schematic diagram of the structure at A;

[0024] Figure 5 A schematic structural diagram of a first adjustment portion according to an embodiment of the present utility model is shown;

[0025] Figure 6 A schematic structural diagram of a first locking member according to an embodiment of the present utility model is shown;

[0026] Figure 7 An exploded view showing a first locking member according to an embodiment of the present invention;

[0027] Figure 8 A schematic structural diagram of a first driving member and a first moving member according to an embodiment of the present utility model is shown;

[0028] Figure 9 Another structural schematic diagram of the first driving member and the first moving member according to an embodiment of the present utility model is shown.

[0029] Figure markings: 1-first adjustment part; 1021-locking pin; 1022-connecting pin; 103-first driving member; 104-first locking member; 105-first moving member; 106-first clamping body; 107-oblique iron member; 109-fixed block; 110-guide bevel; 111-slide rail; 112-slideway; 113-first pull rod; 114-first linkage block; 115-first positioning block; 116-first pulley; 117-first connecting rod; 118-first rotating shaft; 119-second rotating shaft; 2-second adjustment part; 201-second connecting hole; 202-second connecting member; 203-second clamping body; 3-frame part; 301-first frame block; 302-second frame block; 303-connecting rod; 4-hydraulic drive part; 401-shift lever; 402-oil tank; 403-oil cylinder; 404-spring. DETAILED DESCRIPTION

[0030] The following detailed description is provided to help the reader gain a comprehensive understanding of the methods, devices, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent upon understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein. Rather, except for operations that must occur in a particular order, changes may be made that will be apparent upon understanding the disclosure of this application. Furthermore, descriptions of features known in the art may be omitted for clarity and brevity.

[0031] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways to implement the methods, devices, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0032] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being “on,” “connected to,” “coupled to,” “over,” or “overlaying” another element, it may be directly “on,” “connected to,” “coupled to,” “over,” or “overlaying” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on,” “directly connected to,” “directly coupled to,” “directly over,” or “directly covering” another element, there may be no other elements intervening therebetween.

[0033] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0034] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are used only to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Thus, a first member, component, region, layer, or portion in the examples described herein may also be referred to as a second member, component, region, layer, or portion without departing from the teachings of the examples.

[0035] For ease of description, spatial relational terms such as "above," "upper," "below," and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element would subsequently be "below" or "lower" relative to the other element. Thus, the term "above" includes both the orientations "above" and "below," depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0036] The terms used herein are intended only to describe various examples and are not intended to limit the examples. Unless the context clearly indicates otherwise, the singular is intended to include the plural. The terms "include," "comprising," and "having" list the presence of stated features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0037] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include changes in shapes that occur during manufacturing.

[0038] The features of the examples described herein can be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0039] According to the hydraulic rail gap adjustment device provided by the utility model, Figures 1 to 9 As shown, the hydraulic rail gap adjusting device is used to adjust the gap between two rail sections. The hydraulic rail gap adjusting device includes a first adjusting part 1, a second adjusting part 2, a frame part 3 and a hydraulic driving part 4.

[0040] In the following description, reference will be made to Figures 1 to 9 The detailed structures of the first adjusting part 1, the second adjusting part 2, the frame part 3 and the hydraulic driving part 4 of the hydraulic rail gap adjusting device are described in detail.

[0041] like Figure 1 and Figure 2As shown, in this embodiment, the hydraulic rail gap adjustment device includes a frame portion 3, a first adjustment portion 1 for clamping a first rail section (not shown), a second adjustment portion 2 for clamping a second rail section (not shown; the first rail section and the second rail section may be connected end-to-end with a gap provided at the connection), and a hydraulic drive portion 4. The first adjustment portion 1, the second adjustment portion 2, and the hydraulic drive portion 4 are all disposed within the frame portion 3. During use, the first adjustment portion 1 and the second adjustment portion 2 clamp the first and second rail sections, respectively, and the first adjustment portion 1 and the second adjustment portion 2 are always within the frame portion 3 during use. The frame portion 3 can serve as a connection and fixed installation function, making it easier for users to carry the hydraulic rail gap adjustment device.

[0042] like Figure 1 and Figure 2 As shown, in this embodiment, the first adjustment portion 1 and the hydraulic drive portion 4 are respectively disposed at both ends of the frame portion 3, and the second adjustment portion 2 is disposed between the first adjustment portion 1 and the hydraulic drive portion 4. The second adjustment portion 2 is connected to the hydraulic drive portion 4. When the hydraulic drive portion 4 is driven, the second adjustment portion 2 moves toward the first adjustment portion 1 to adjust the gap between the first and second track sections. The first adjustment portion 1 clamps the first track section, and the second adjustment portion 2 clamps the second track section. The hydraulic drive portion 4 then activates, pushing the second adjustment portion 2 toward the first adjustment portion 1, thereby adjusting the gap between the two track sections.

[0043] Compared with the existing adjustment devices, the hydraulic rail gap adjustment device has a simple overall structure, is light in weight, and is easy to install and carry. In addition, it does not require an external pump station, and the driving force can be provided by the hydraulic drive unit 4. Each device only requires one person to complete the operation task, which saves labor to a certain extent and reduces labor intensity, thereby making the operation task easier and more convenient, reducing the difficulty of equipment online, and simplifying the operation.

[0044] Preferably, if Figure 2 As shown, in the embodiment, the first adjustment part 1 and the hydraulic drive part 4 are both detachably connected to the frame part 3, which further facilitates installation and transportation. The user can disassemble the hydraulic rail gap adjustment device before use, and then transport each part to the use site separately, and then install it.

[0045] Preferably, if Figure 2 As shown, in the embodiment, a first connection hole (not shown due to angle reasons) is opened on the surface of the first adjustment portion 1 facing the first end of the frame portion 3, and the first adjustment portion 1 is detachably connected to the frame portion 3 through the first connection hole and the first connecting member. Preferably, in the embodiment, the first connecting member can be a combination of a locking pin 1021 and a connecting pin 1022, so that the first adjustment portion 1 can be detachably mounted on the frame portion 3.

[0046] Preferably, if Figure 2 As shown, in this embodiment, a second connecting hole 201 is formed on a surface of the hydraulic drive unit 4 facing the second end of the frame portion 3. The hydraulic drive unit 4 is detachably connected to the frame portion 3 via the second connecting hole 201 and the second connecting member 202. The second connecting hole 201 may be a threaded hole, and the second connecting member 202 may be a locking bolt.

[0047] The entire hydraulic rail gap adjustment device adopts a split structure, and the maximum weight of a single piece does not exceed 40kg. During assembly, the first connecting hole of the first adjustment part 1 is aligned with the front hole of the frame part 3, and the connecting pin 1022 is inserted, and then the locking pin 1021 is inserted, and the first adjustment part 1 is fixed to the frame part 3; the convex shaft of the hydraulic drive part 4 is inserted into the rear hole of the frame part 3 and then tightened and fixed with a locking bolt, and then the following shift rod 401 is inserted into the shift block fixing hole of the hydraulic drive part 4. The entire machine is assembled and can start operation.

[0048] Preferably, if Figures 5 to 9 As shown, in an embodiment, the first adjustment portion 1 may include a first drive member 103, a first locking member 104, and a first movable member 105. The first locking member 104 is used to clamp the first track section. A user manually drives the first locking member 104 through the first drive member 103 to clamp the first track section. When the first locking member 104 is not clamped, the first movable member 105 is placed on the first track section, allowing the user to walk on the track using the hydraulic track gap adjustment device. Specifically, the first end of the first locking member 104 is connected to the frame portion 3, and the second end of the first locking member 104 is connected to the first drive member 103. The first movable member 105 is pivotally disposed below the first drive member 103. When the first adjustment portion 1 is raised, gravity forces the first movable member 105 downward, allowing the user to walk along the rail. The first locking member 104 is driven by the first drive member 103 to clamp the first track section, and the first movable member 105 can be placed on the first track section to achieve movement.

[0049] Preferably, if Figures 5 to 9As shown, in the embodiment, the first locking member 104 includes a first clamp body 106 and an oblique iron piece 107. The first clamp body 106 is provided with an inclined rail portion on one side facing the first track section. The inclined rail portion includes a fixed block 109 and a guide bevel 110. Both ends of the inclined rail portion are provided with a fixed block 109 and a guide bevel 110. The oblique iron piece 107 is provided at the guide bevel 110. The fixed block 109 is provided with a slide rail 111. The oblique iron piece 107 is provided with a slideway 112. The oblique iron piece 107 slides by cooperating with the slideway 112 and the slide rail 111. The side of the oblique iron piece 107 that is in contact with the first clamp body 106 is formed into an inclined surface. The side opposite to the inclined surface is provided with a plurality of oblique teeth. The guide bevel 110 is also provided with an oblique edge. The inclined surface and the guide bevel 110 cooperate with each other.

[0050] Under the driving force of the first driving component 103, the inclined iron piece 107 moves along the guide bevel 110. Due to the setting of the inclined surface and the bevel edge, when the inclined iron piece 107 slides, the two inclined iron pieces 107 move toward the middle, and then clamp the first section of the track through the bevel teeth.

[0051] Preferably, if Figures 5 to 9 As shown, in an embodiment, the first driving member 103 may include a first pull rod 113, a first linkage block 114 and a first positioning block 115. The first positioning block 115 may be provided on the first clamping body 106 by means of bolts. The first pull rod 113 is connected to the oblique iron piece 107 via the first linkage block 114. The end of the oblique iron piece 107 is provided with a slot, and the end of the first linkage block 114 is clamped in the slot. The first pull rod 113 passes through the first linkage block 114 and is pivotally connected to the first positioning block 115 via a first rotating shaft 118. The first positioning block 115 is fixedly mounted on the first clamping body 106. Therefore, when the user pulls the first pull rod 113, the first linkage block 114 can be driven to move, thereby pushing the oblique iron piece 107. The oblique iron piece 107 moves along the guide bevel 110 of the first clamping body 106, and the two oblique iron pieces 107 move toward the center, thereby clamping the first section of the track.

[0052] Preferably, if Figure 5 、 Figure 8 and Figure 9 As shown, in an embodiment, the first movable member 105 may include a first pulley 116 and a first connecting rod 117. The first end of the first connecting rod 117 is pivotally mounted on the first positioning block 115 via a second rotating shaft 119, and the second end of the first connecting rod 117 is provided with the first pulley 116. Therefore, when the hydraulic rail gap adjustment device is lifted, the first pulley 116 moves downward under the force of gravity, and the first pulley 116 can be placed on the track, thereby achieving movement.

[0053] Preferably, if Figure 1 and Figure 4As shown, in an embodiment, the second adjustment portion 2 may include a second driving member, a second locking member, and a second moving member. The first end of the second locking member is connected to the frame portion 3, the second end of the second locking member is connected to the second driving member, and the second moving member is pivotally arranged at the bottom of the second driving member. The second locking member is driven by the second driving member to clamp the second section of the track, and the second moving member can be placed on the second section of the track to achieve movement. In an embodiment, the second driving member, the second locking member, and the second moving member are substantially the same as the first driving member 103, the first locking member 104, and the first moving member 105. The similarities are not repeated here. The difference is that the second locking member includes a second clamping body 203, and the second clamping body 203 is also substantially the same as the first clamping body 106. The difference is that since the oil tank 402 and the oil cylinder 403 of the hydraulic driving unit 4 described below are respectively installed on the two end surfaces of the second clamping body 203, a flow channel is opened inside the second clamping body 203 to enable the passage of hydraulic oil. In addition, the bottom surface of the second clamping body 203 (i.e., the side facing the second track section) is also provided with a guide bevel 110, but the orientation of the guide bevel 110 of the second clamping body 203 is opposite to that of the first clamping body 106. Thus, when the second adjustment portion 2 moves toward the first adjustment portion 1, the bevel teeth of the beveled iron member 107 are oriented in the opposite direction of the track pulling. The greater the pulling force, the deeper the bevel teeth bite. Continuing to apply pressure will pull the rails closer to the center, reducing the rail head gap.

[0054] Preferably, if Figure 1 and Figure 4 As shown, in the embodiment, the hydraulic drive unit 4 may include a lever 401, an oil tank 402, an oil cylinder 403, and a spring 404. The oil tank 402 is disposed on the upper portion of the second clamping body 203. The oil cylinder 403 and the spring 404 are disposed between the second end of the frame portion 3 and the second clamping body 203. The oil cylinder 403 is connected to the oil tank 402 through the second clamping body 203. The lever 401 is disposed on the oil tank 402 so that the hydraulic oil in the oil tank 402 can enter the oil cylinder 403. In this way, when the user shifts the lever 401, the hydraulic oil in the oil tank 402 is pressed into the oil cylinder 403, causing the piston of the oil cylinder 403 to extend, thereby pulling the spring 404, thereby pushing the second adjustment part 2 toward the first adjustment part 1. It should be noted that the lever 401, the oil tank 402, and the oil cylinder 403 can be common components in the prior art, and their working principles and installation methods will not be described in detail.

[0055] Preferably, if Figure 2As shown, in an embodiment, the frame portion 3 may include a first frame block 301 located at a first end, a second frame block 302 located at a second end, and a connecting rod 303, wherein the connecting rod 303 connects the first frame block 301 and the second frame block 302. The frame portion 3 may also be a detachable structure, thereby facilitating installation and transportation.

[0056] The hydraulic rail gap adjustment device can be operated by one person through the cooperation of the first adjustment part, the second adjustment part, the frame part and the hydraulic drive part. The overall structure is simple and light in weight, which is easy to install and carry. No additional pump station is required. The hydraulic drive part can provide driving force, saving labor and reducing labor intensity, thereby making the operation task easier and more convenient, reducing the difficulty of equipment online, and simplifying operation.

[0057] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The scope of protection of the present application is not limited thereto. Although the present application has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-described embodiments within the technical scope disclosed in the present application, or perform equivalent replacements for some of the technical features thereof. These modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the scope of protection of the claims.

Claims

1. A hydraulic rail gap adjustment device for adjusting the gap between two sections of rail, characterized in that: The hydraulic rail gap adjustment device includes a frame part, a first adjustment part for clamping the first section of rail, a second adjustment part for clamping the second section of rail, and a hydraulic drive part. The first adjustment part, the second adjustment part, and the hydraulic drive part are all arranged inside the frame part. The first adjustment part and the hydraulic drive part are respectively arranged at both ends of the frame part. The second adjustment part is arranged between the first adjustment part and the hydraulic drive part. The second adjustment part is connected to the hydraulic drive part. When the hydraulic drive part is driven, the second adjustment part moves toward the first adjustment part to adjust the gap between the first section of rail and the second section of rail.

2. The hydraulic rail gap adjustment device according to claim 1, characterized in that: The first adjustment part and the hydraulic driving part are both detachably connected to the frame part.

3. The hydraulic rail gap adjustment device according to claim 2, characterized in that: A first connecting hole is formed on a surface of the first adjusting portion facing the first end of the frame portion, and the first adjusting portion is detachably connected to the frame portion through the first connecting hole and a first connecting member; A second connection hole is formed on a surface of the hydraulic driving portion facing the second end of the frame portion, and the hydraulic driving portion is detachably connected to the frame portion through the second connection hole and a second connection member.

4. The hydraulic rail gap adjustment device according to claim 1, characterized in that: The first adjustment portion includes a first driving member, a first locking member and a first movable member. The first end of the first locking member is connected to the frame portion, the second end of the first locking member is connected to the first driving member, the first movable member is pivotally arranged at the lower portion of the first driving member, the first locking member is driven by the first driving member to clamp the first section of the track, and the first movable member can be placed on the first section of the track to achieve movement.

5. The hydraulic rail gap adjustment device according to claim 4, characterized in that: The first locking member includes a first clamping body and an inclined iron piece. The first clamping body is provided with an inclined rail portion on a side facing the first section of the track. The inclined rail portion includes a fixed block and a guide bevel. Both ends of the inclined rail portion are provided with a fixed block and a guide bevel. The inclined iron piece is provided at the guide bevel. The fixed block is provided with a slide rail. The inclined iron piece is provided with a slideway. The inclined iron piece slides by cooperating with the slideway and the slide rail.

6. The hydraulic rail gap adjustment device according to claim 5, characterized in that: The first driving member includes a first pull rod, a first link block and a first positioning block. The first positioning block is provided on the first clamping body. The first pull rod is connected to the oblique iron member through the first link block.

7. The hydraulic rail gap adjustment device according to claim 6, characterized in that: The first moving member includes a first pulley and a first connecting rod. The first end of the first connecting rod is pivotally disposed on the first positioning block, and the first pulley is disposed on the second end of the first connecting rod.

8. The hydraulic rail gap adjustment device according to claim 1, characterized in that: The second adjustment portion includes a second driving member, a second locking member and a second movable member. The first end of the second locking member is connected to the frame portion, and the second end of the second locking member is connected to the second driving member. The second movable member is pivotally arranged at the lower portion of the second driving member. The second locking member is driven by the second driving member to clamp the second section of the track. The second movable member can be placed on the second section of the track to achieve movement.

9. The hydraulic rail gap adjusting device according to claim 8, characterized in that: The second locking member includes a second clamping body; The hydraulic drive unit includes a shift rod, an oil tank, an oil cylinder and a spring. The oil tank is arranged on the upper part of the second clamping body. The oil cylinder and the spring are arranged between the second end of the frame part and the second clamping body. The oil cylinder is connected to the oil tank through the second clamping body. The shift rod is arranged on the oil tank so that the hydraulic oil in the oil tank can enter the oil cylinder.

10. The hydraulic rail gap adjusting device according to claim 1, characterized in that: The frame portion includes a first frame block located at a first end, a second frame block located at a second end, and a connecting rod connecting the first frame block and the second frame block.

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