A hydraulic rail shearing device

Abstract

The utility model discloses a hydraulic pressure shears rail device, include: hydraulic pressure shears main part, the movable cavity is formed in the hydraulic pressure shears main part inside, fixed shear plate is arranged in the one side of hydraulic pressure shears main part below movable cavity, the middle axle sleeve is provided with two, two middle axle sleeve is arranged in the both sides of hydraulic pressure shears main part respectively, and the middle axle sleeve extends to movable cavity, hydraulic telescopic link, hydraulic telescopic link is set up in movable cavity through the middle axle sleeve, movable shear plate, movable shear plate is located in movable cavity and is connected with the movable end of hydraulic telescopic link, and movable shear plate is connected with fixed shear plate through fulcrum axle. The application is through setting movable cavity and is completely built -in in the inside of hydraulic pressure shears main part with hydraulic telescopic link, middle axle sleeve and movable shear plate, thereby makes the device whole structure is very compact, and the volume is reduced significantly.

Description

Technical Field

[0001] This utility model belongs to the technical field of rail shearing equipment, and in particular relates to a hydraulic rail shearing device. Background Technology

[0002] In the field of scrap rail processing, scrap rails are mostly processed by shearing. Traditional rail shearing operations often employ manual shearing or mechanical cutting. Manual shearing suffers from low efficiency, uneven cuts, and high labor intensity for workers. Among mechanical cutting methods, hydraulic shears are common equipment. However, some existing hydraulic rail shearing devices are bulky, heavy, and inconvenient to use. Some smaller hydraulic shears use a single-cylinder drive combined with an external hinge shaft to achieve the shearing action. But the hydraulic cylinder and hinge shaft mechanism of these devices are mostly exposed outside the main structure, resulting in a large overall lateral dimension of the equipment, making it inconvenient to use in narrow or complex working conditions. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the prior art by providing a hydraulic rail cutting device that has a more compact structure and smaller size compared to existing hydraulic rail cutting equipment, making the device more convenient to use.

[0004] To achieve the above objectives, the utility model adopts the following technical solution: a hydraulic rail shearing device, comprising: A hydraulic shear body, wherein the hydraulic shear body has a movable cavity inside; A fixed shear plate is provided on the side of the hydraulic shear body located below the movable cavity; Two central bushings are provided, and the two central bushings are respectively provided on both sides of the hydraulic shear body, and the central bushings extend into the movable cavity; A hydraulic telescopic rod, wherein the hydraulic telescopic rod is disposed within the movable cavity via the central bushing; A movable shear plate is located within the movable cavity and connected to the movable end of the hydraulic telescopic rod. The movable shear plate is also connected to the fixed shear plate via a fulcrum shaft.

[0005] In the above technical solution, the hydraulic telescopic rod, central bushing and movable shear plate are completely built into the hydraulic shear body by setting a movable cavity, so that the overall structure of the device is extremely compact and the volume is significantly reduced. The internal design of the hydraulic telescopic rod eliminates the traditional exposed hinge shaft structure, which reduces the lateral dimension of the entire equipment. Moreover, the hydraulic telescopic rod can also play a protective role.

[0006] Optionally, the fixed shear plate has a shearing receiving groove on the side facing the movable shear plate that communicates with the movable cavity. The receiving groove ensures that the steel rail is subjected to concentrated force during the shearing of scrap steel rail, and minimizes the uneven cut or equipment jamming caused by steel rail deviation.

[0007] Optionally, both the fixed shear plate and the movable shear plate are provided with reinforced blades on their opposite sides, which directly improves the hardness and wear resistance of the shearing surface.

[0008] Optionally, the fixed part of the hydraulic telescopic rod is provided with a fixing collar, and rotating shafts are symmetrically arranged on both sides of the outer periphery of the fixing collar, and the rotating shafts are inserted into the central bushing.

[0009] In the above technical solution, the hydraulic cylinder thrust is evenly distributed by the dual rotating shafts, avoiding piston rod bending or seal failure caused by single-point force, and ensuring the stability of the hydraulic system.

[0010] Optionally, the hydraulic shear body has a mounting hole, and the central bushing includes a mounting part and a sleeve part disposed on one side of the mounting part. The mounting part is detachably disposed on the hydraulic shear body, and the sleeve part passes through the mounting hole and is sleeved with the rotating shaft. After the central bushing wears out, it can be directly disassembled and replaced, reducing maintenance time.

[0011] Optionally, the movable shear plate has a first connecting part, which is connected to the movable end of the hydraulic telescopic rod via a movable shaft. The use of a movable shaft connection allows the connection angle between the hydraulic telescopic rod and the movable shear plate to change freely during the stroke, ensuring the efficiency and flexibility of power transmission and reducing unnecessary wear.

[0012] Optionally, the movable shear plate has a second connecting part that extends into the shearing receiving groove. The fulcrum shaft passes through the fixed shear plate and the second connecting part, and the fulcrum shaft is set in the shearing receiving groove area, so that the entire hinge point is hidden inside the shear plate, making the structure more compact, avoiding exposed rotation mechanisms, and improving safety.

[0013] Optionally, the upper end of the hydraulic shear body is provided with a top plate, the top plate is provided with a rotary mechanism, and the rotary mechanism is provided with a connecting seat for connecting to the robotic arm.

[0014] In the above technical solution, the slewing mechanism allows the entire hydraulic shear to rotate 360° on the horizontal plane, enabling the adjustment of the shearing angle and alignment with the rails without moving the main equipment, greatly improving work efficiency and convenience; the connecting seat provides a standardized interface, allowing the device to be quickly installed on the robotic arms of construction machinery such as excavators and loaders.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This application incorporates the hydraulic telescopic rod, central bushing, and movable shear plate entirely within the hydraulic shear body by setting up a movable cavity, resulting in an extremely compact overall structure and significantly reduced volume. The concealed design of the hydraulic telescopic rod eliminates the traditional exposed hinge shaft structure, thereby reducing the lateral dimension of the entire device. Furthermore, the hydraulic telescopic rod also provides protection.

[0016] 2. This application allows for direct disassembly and replacement of the central bushing after wear, reducing maintenance time.

[0017] 3. This application sets the fulcrum shaft in the shearing receiving groove area, so that the entire hinge point is hidden inside the shear plate, making the structure more compact, avoiding the exposed rotation mechanism, and improving safety. Attached Figure Description

[0018] Figure 1 A three-dimensional schematic diagram of a hydraulic rail shearing device provided for an embodiment of this utility model; Figure 2 A side cross-sectional view of a hydraulic rail shearing device provided in an embodiment of this utility model; Figure 3 This is a schematic diagram showing the connection relationship between the central bushing, the hydraulic telescopic rod, and the movable shear plate in an embodiment of this utility model; Figure 4 A side cross-sectional view of a fixed shear plate and a movable shear plate in a closed state in a hydraulic rail shearing device provided for an embodiment of this utility model; Figure 5 This is a schematic diagram of the hydraulic shear body according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the movable shearing plate in an embodiment of this utility model.

[0019] In the diagram: 1. Hydraulic shear body; 11. Movable cavity; 12. Top plate; 2. Fixed shear plate; 21. Shearing receiving groove; 3. Central bushing; 31. Mounting part; 32. Sleeve part; 4. Hydraulic telescopic rod; 41. Fixed collar; 42. Rotating shaft; 5. Movable shear plate; 51. First connecting part; 52. Second connecting part; 6. Pivot shaft; 7. Reinforced blade; 8. Rotation mechanism; 9. Connecting seat. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] like Figure 1 As shown in Figure 6, the specific solution of the embodiment is as follows: A hydraulic rail shearing device, comprising: The hydraulic shear body 1 has a movable cavity 11 inside. The movable cavity 11 extends to one side to form a cavity with an outlet. It is worth mentioning that a protective plate is welded to the outer edge of the movable cavity 11 of the hydraulic shear body 1. The protective plate is used to strengthen the movable cavity 11 and prevent the cavity from collapsing under pressure. Fixed shear plate 2 is located on the side of the hydraulic shear body 1 below the movable cavity 11; There are two central bushings 3, which are respectively located on both sides of the hydraulic shear body 1 and extend into the movable cavity 11. Hydraulic telescopic rod 4 is installed in movable cavity 11 through central bushing 3; The movable shear plate 5 is located inside the movable cavity 11 and is connected to the movable end of the hydraulic telescopic rod 4. The movable shear plate 5 is also connected to the fixed shear plate 2 through the fulcrum shaft 6.

[0023] In the above technical solution, the hydraulic telescopic rod 4, the central bushing 3, and the movable shear plate 5 are completely built into the hydraulic shear body 1 by setting the movable cavity 11, so that the overall structure of the device is extremely compact and the volume is significantly reduced. The internal design of the hydraulic telescopic rod 4 eliminates the traditional exposed hinge structure, which reduces the lateral dimension of the entire equipment. Moreover, the hydraulic telescopic rod 4 can also play a protective role. In this application, the hydraulic telescopic rod 4 adopts a commercially available mature product. The specific model can be selected according to the size of the equipment, so it will not be described in detail here.

[0024] like Figure 2 , Figure 4As shown, when arranging the hydraulic telescopic rod 4, the hydraulic telescopic rod 4 is arranged vertically, but not perpendicular to the horizontal plane. When the hydraulic telescopic rod 4 retracts, the angle between the hydraulic telescopic rod 4 and the horizontal plane is between 70-80°. When it extends until the fixed shear plate 2 and the movable shear plate 5 are combined, the angle approaches 90°. This vertical arrangement ensures that the hydraulic telescopic rod 4 is within the movable cavity 11 inside the hydraulic shear body 1, whether it is retracting or extending. This application has a slender overall shape and a narrow lateral direction, reducing the lateral dimension compared to existing single-cylinder hydraulic shears.

[0025] In this embodiment, the fixed shear plate 2 has a shearing receiving groove on the side facing the movable shear plate 5 that communicates with the movable cavity 11. The receiving groove ensures that the steel rail is subjected to concentrated force during the shearing of scrap steel rail, and minimizes the uneven cut or equipment jamming caused by steel rail deviation.

[0026] Both the fixed shear plate 2 and the movable shear plate 5 are equipped with reinforcing blades 7 on their opposite sides. The hardness and wear resistance of the shearing surface are directly improved by setting the reinforcing blades 7.

[0027] The fixed part of the hydraulic telescopic rod 4 is provided with a fixed collar 41. Rotating shafts 42 are symmetrically arranged on both sides of the outer periphery of the fixed collar 41. The rotating shafts 42 are inserted into the central bushing 3. The thrust of the hydraulic telescopic rod 4 is evenly distributed by the two rotating shafts to avoid piston rod bending or seal failure caused by single-point force, thus ensuring the stability of the hydraulic system.

[0028] In this application, the fixing collar 41 is directly welded to the outer periphery of the fixing cylinder of the hydraulic telescopic rod 4, and the fixing collar 41 is located close to the movable end of the hydraulic telescopic rod 4, together to ensure the central positioning effect of the hydraulic telescopic rod 4 and reduce the swing amplitude of the hydraulic telescopic rod 4.

[0029] In this application, a mounting hole is provided on the hydraulic shear body 1. The central bushing 3 includes a mounting part and a sleeve part provided on one side of the mounting part. The mounting part is detachably provided on the hydraulic shear body 1. In this embodiment, multiple bolts are used to fix the mounting part to the hydraulic shear body 1, while the sleeve part passes through the mounting hole and is sleeved with the rotating shaft 42. After the central bushing 3 is worn, it can be directly disassembled and replaced, reducing maintenance time.

[0030] like Figure 6As shown, in this embodiment, the movable shear plate 5 has a first connecting part 51, which is a protruding portion with an arc-shaped outer edge. A movable groove is formed in the middle of the first connecting part 51, and holes are formed on both walls of the groove. The first connecting part 51 is rotatably connected to the movable end of the hydraulic telescopic rod 4 via a movable shaft. Specifically, a perforated mating plate is provided at the movable end of the hydraulic telescopic rod 4. The mating plate is inserted into the movable groove, and then the movable shaft passes through the hole from one side of the first connecting part 51, thereby completing the rotatable connection between the first connecting part and the movable end of the hydraulic telescopic rod 4. This design allows the connection angle between the hydraulic telescopic rod 4 and the movable shear plate to change freely during its stroke, ensuring the efficiency and flexibility of power transmission and reducing unnecessary wear.

[0031] In addition, the movable shear plate 5 also has a second connecting part 52, which extends into the shearing receiving groove 21. Then, the fulcrum shaft 6 passes through the fixed shear plate 2 and the second connecting part 52, thereby completing the rotational connection between the second connecting part 52 and the fixed shear plate 2. This design places the fulcrum shaft 6 within the area of ​​the shearing receiving groove 21, making the entire hinge point hidden inside the fixed shear plate 2, resulting in a more compact structure, avoiding exposed rotating mechanisms, and improving safety.

[0032] like Figure 5 As shown, in order to improve the overall strength, arc-shaped reinforcing guard plates are provided on both sides of the hydraulic shear body 1 and on the outer periphery of the hole. Reinforcing guard plates are also provided on the inner walls on both sides of the movable cavity 11, so that the contact area with the central bushing 3 can be expanded, thereby ensuring the stability of the central bushing 3 and preventing deformation of the side plate of the hydraulic shear body 1.

[0033] like Figure 4 As shown, the width of the shearing receiving groove 21 on the inner side of the fixed shear plate 2 is smaller than the width of the movable cavity 11. This design gives the fixed shear plate 2 strong rigidity. In addition, multiple reinforcing ribs are provided on the outer periphery of the fixed shear plate 2. The reinforcing ribs are welded together with the hydraulic shear body 1 to improve its service life. There are two reinforcing blades 7 on the fixed shear plate 2, which are embedded in the inner wall of the shearing receiving groove 21 on both sides respectively.

[0034] like Figure 1 As shown, the upper end of the hydraulic shear body 1 is provided with a top plate 12, and a slewing mechanism 8 is provided on the top plate 12. The slewing mechanism 8 is provided with a connecting seat 9 for connecting to the mechanical arm. In this application, the slewing mechanism 8 adopts a commercially available conventional style, and the connecting seat 9 adopts an existing standard structure for docking with the excavator arm. There is no room for improvement in its structure, so it will not be described in detail in this application.

[0035] In the above technical solution, the slewing mechanism allows the entire hydraulic shear to rotate 360° on the horizontal plane, enabling the adjustment of the shearing angle and alignment with the rails without moving the main equipment, greatly improving work efficiency and convenience; the connecting seat 9 provides a standardized interface, allowing this device to be quickly installed on the robotic arms of construction machinery such as excavators and loaders.

[0036] The workflow of the above embodiment is as follows: The hydraulic system drives the built-in hydraulic telescopic rod 4 to retract, causing the movable shear plate 5, which is rotatably connected to its movable end, to rotate upward around the fulcrum axis 6, separating the movable shear plate from the fixed shear plate 2 and forming an opening; after the rail is placed into the shearing receiving groove 21 of the fixed shear plate, the hydraulic telescopic rod 4 extends, pushing the movable shear plate 5 to rotate downward and close with the fixed shear plate 2. At this time, the reinforcing blades 7 on the movable shear plate 5 and the fixed shear plate 2 apply shearing force to the rail, completing the cutting. Throughout the process, the hydraulic telescopic rod 4 stably transmits power through the double rotating shaft 42 of the central bushing 3, and is always hidden in the movable cavity 11, ensuring a compact structure; the shearing angle can be adjusted 360° through the top rotation mechanism 8, improving operational flexibility.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic rail shearing device, characterized in that, include: The hydraulic shear body (1) has an internal movable cavity (11). A fixed shear plate (2) is provided on the side of the hydraulic shear body (1) located below the movable cavity (11); Two central bushings (3) are provided, and the two central bushings (3) are respectively provided on both sides of the hydraulic shear body (1). The central bushings (3) extend into the movable cavity (11). A hydraulic telescopic rod (4) is provided in the movable cavity (11) via the central bushing (3); The movable shear plate (5) is located in the movable cavity (11) and connected to the movable end of the hydraulic telescopic rod (4). The movable shear plate (5) is also connected to the fixed shear plate (2) through the fulcrum shaft (6).

2. The hydraulic rail shearing device according to claim 1, characterized in that: The fixed shear plate (2) has a shearing receiving groove (21) on the side facing the movable shear plate (5) that communicates with the movable cavity (11).

3. The hydraulic rail shearing device according to claim 1, characterized in that: The fixed shear plate (2) and the movable shear plate (5) are both provided with reinforced blades (7) on the opposite side.

4. A hydraulic rail shearing device according to claim 1, characterized in that: The fixed part of the hydraulic telescopic rod (4) is provided with a fixed collar (41), and the outer sides of the fixed collar (41) are symmetrically provided with rotating shafts (42), which are inserted into the central bushing (3).

5. A hydraulic rail shearing device according to claim 4, characterized in that: The hydraulic shear body (1) has an installation hole. The central bushing (3) includes an installation part and a sleeve part disposed on one side of the installation part. The installation part is detachably disposed on the hydraulic shear body (1). The sleeve part passes through the installation hole and is sleeved with the rotating shaft (42).

6. A hydraulic rail shearing device according to claim 1, characterized in that: The movable shear plate (5) has a first connecting part, which is connected to the movable end of the hydraulic telescopic rod (4) via a movable shaft.

7. A hydraulic rail shearing device according to claim 2, characterized in that: The movable shear plate (5) has a second connecting part that extends into the shearing receiving groove, and the fulcrum shaft (6) passes through the fixed shear plate (2) and the second connecting part.

8. A hydraulic rail shearing device according to claim 1, characterized in that: The upper end of the hydraulic shear body (1) is provided with a top plate (12), and a rotary mechanism (8) is provided on the top plate (12). The rotary mechanism (8) is provided with a connecting seat (9) connected to the robotic arm.

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