Roller workpiece shaft head dismounting device

Abstract

This utility model discloses a device for disassembling the shaft end of a roller workpiece, including a main frame, a movable rod, and a power component. The main frame is used to cooperate with the roller body, and the movable rod is located on the main frame. One end of the movable rod has a mating part, through which the shaft end can pass, and the mating part abuts against the end of the shaft end inserted into the roller body. The power component is connected to the movable rod for transmission or drive, so as to drive or move the movable rod along the axial direction of the roller body, allowing the movable rod to push the shaft end relative to the roller body through the mating part to move and separate it. This utility model, by driving the movable rod to move, causes the mating part to push against the end of the shaft end inserted into the roller body and move the shaft end relative to the roller body, thereby applying a large force from the inside out to separate the shaft end from the roller body. This helps to reduce the possibility of shaft end deformation and damage, and solves the problem of difficult shaft end disassembly.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tool technology, and in particular to a device for disassembling the shaft head of roller workpieces. Background Technology

[0002] Existing calenders typically employ a split-type structure for their auxiliary rolls. The shaft head is located at the end of the roll body and partially inserted into it. To ensure a stable connection, the clearance between the shaft head and the roll body's shaft hole is usually very small. During operation, the shaft head is prone to thermal expansion due to temperature changes, making it difficult to detach from the roll body. Current disassembly methods usually involve connecting the shaft head with a puller and then using external force to pull it out. If the pulling force is too small, the shaft head is difficult to detach from the roll body; if a large pulling force is used, pulling the shaft head can easily deform, leading to damage. Furthermore, the puller is difficult to connect and fix to the shaft head, making it difficult to apply force and posing challenges to disassembling the shaft head. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a roller workpiece shaft head disassembly device, which drives a movable rod to move, causing the mating part to push against the end of the shaft head inserted into the roller body and move the shaft head relative to the roller body. This allows a large force to be applied from the inside out to separate the shaft head from the roller body, which helps to reduce the possibility of shaft head deformation and damage, and solves the problem of difficult shaft head disassembly.

[0004] The roller workpiece shaft head disassembly device according to an embodiment of the present invention includes a main frame, a movable rod, and a power component. The main frame is used to cooperate with the roller body. The movable rod is disposed on the main frame, and one end of the movable rod is provided with a mating part. The movable rod can pass through the shaft head and the mating part abuts against the end of the shaft head inserted into the roller body. The power component is connected to the movable rod for transmission or drive, so as to drive or drive the movable rod to move along the axial direction of the roller body, so that the movable rod can push the shaft head relative to the roller body to move and separate through the mating part.

[0005] The roller workpiece shaft head disassembly device according to the embodiment of this utility model has at least the following beneficial effects: when it is necessary to disassemble the shaft head from the roller body, the main frame is fitted with the roller body, and then the movable rod is inserted through the shaft head and its mating part is engaged with the end of the shaft head inserted into the roller body. The movable rod is driven or driven by the power component to move along the axial direction of the roller body, so that the mating part pushes the shaft head relative to the roller body from the inside, so that a large force can be applied from the inside to the outside to separate the shaft head from the roller body, which helps to reduce the possibility of shaft head deformation and damage, and solves the problem of difficult shaft head disassembly.

[0006] According to some embodiments of this utility model, the movable rod is provided with a threaded portion that can extend out of the shaft head, and the power component and the threaded portion are connected by a threaded structure for transmission. The power component can rotate and drive the movable rod to move along the axial direction of the roller body through the threaded structure.

[0007] According to some embodiments of the present invention, the main frame includes a first plate and a second plate, the first plate and the second plate are arranged at intervals, the second plate is used to cooperate with the roller body, the first plate is provided with a first through hole for the threaded part to pass through, and the power component is provided on the first plate and can rotate relative to the first plate.

[0008] According to some embodiments of this utility model, the power component is a nut that abuts against the first plate.

[0009] According to some embodiments of the present invention, the second plate is provided with a second through hole for the shaft head to pass through, and the second plate can be sleeved on the shaft head through the second through hole and abut against the end of the roller body.

[0010] According to some embodiments of the present invention, an external support structure is provided between the first plate and the second plate, and the external support structure enables the first plate and the second plate to have a tendency to move away from each other.

[0011] According to some embodiments of the present invention, the external support structure includes a driver, the driver having a power output end capable of driving movement, the driver being disposed on the first plate or the second plate, and the power output end correspondingly acting on the second plate or the first plate.

[0012] According to some embodiments of the present invention, the driver is provided in multiple forms and is evenly spaced around the movable rod.

[0013] According to some embodiments of the present invention, the driver is provided in two parts and is respectively distributed on opposite sides of the movable rod.

[0014] According to some embodiments of this utility model, the actuator is a hydraulic jack.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1This is a schematic diagram of the structure of the roller workpiece shaft head disassembly device according to an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 Top view schematic diagram of the disassembly device for the shaft head of medium-sized roller workpieces;

[0019] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of the disassembly device for the shaft head of medium-sized roller workpieces.

[0020] Figure label:

[0021] Roller body 10, shaft head 20;

[0022] Main frame 100, first plate 110, first through hole 111, second plate 120, second through hole 121, driver 130, power output end 131;

[0023] Movable rod 210, mating part 211, threaded part 212, power component 220. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that if directional descriptions are involved, such as up, down, front, back, left, right, etc., indicating the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this utility model and simplifying the description, and does 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, and therefore should not be construed as a limitation of this utility model.

[0026] In the description of this utility model, if words such as several, greater than, less than, exceeding, above, below, or within appear, several means one or more, multiple means two or more, greater than, less than, exceeding, etc. are understood to exclude the number itself, and above, below, or within are understood to include the number itself.

[0027] If the terms "first" and "second" are used only to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Reference Figure 1 , Figure 2 and Figure 3 A device for disassembling the shaft end of a roller workpiece includes a main frame 100, a movable rod 210, and a power component 220. The main frame 100 is used to cooperate with the roller body 10. The movable rod 210 is disposed on the main frame 100. One end of the movable rod 210 is provided with a mating part 211. The movable rod 210 can pass through the shaft end 20 and the mating part 211 abuts against the end of the shaft end 20 inserted into the roller body 10. The power component 220 is connected to the movable rod 210 for transmission or drive, so as to drive or drive the movable rod 210 to move along the axial direction of the roller body 10, so that the movable rod 210 can push the shaft end 20 to move and separate relative to the roller body 10 through the mating part 211.

[0030] Understandably, such as Figure 1 , Figure 2 and Figure 3 As shown, both the roller body 10 and the shaft head 20 are hollow shaft structures that extend from front to back, with the rear end of the shaft head 20 inserted into the roller body 10. When it is necessary to disassemble the shaft head 20 from the roller body 10, the main frame 100 is fitted with the roller body 10, and then the movable rod 210 is inserted through the shaft head 20, with the mating part 211 at the rear end of the movable rod 210 abutting against the end of the shaft head 20 inserted into the roller body 10. The power component 220 drives or propels the movable rod 210 forward along the axial direction of the roller body 10, causing the mating part 211 to push the shaft head 20 forward relative to the roller body 10 from the inside. This allows a larger force to be applied from the inside out to separate the shaft head 20 from the roller body 10. Compared to the disassembly method of pulling the front end of the shaft head 20 out, this method helps to reduce the possibility of deformation and damage to the shaft head 20 and solves the problem of difficult disassembly of the shaft head 20.

[0031] In practical applications, the power component 220 can be connected to the movable rod 210 for transmission, and the user can drive the movable rod 210 to move by operating the power component 220. Alternatively, the power component 220 can be a driving element such as a motor, hydraulic cylinder, or electric push rod, which is connected to the movable rod 210 to drive the movable rod 210 to move. The specific settings can be made according to the actual needs of use.

[0032] In some embodiments, the movable rod 210 is provided with a threaded portion 212 that can extend out of the shaft head 20. The power member 220 and the threaded portion 212 are driven together by a threaded structure. The power member 220 can rotate and drive the movable rod 210 to move along the axial direction of the roller body 10 through the threaded structure.

[0033] Understandably, such as Figure 1 , Figure 2 and Figure 3 As shown, the front end of the movable rod 210 is provided with a threaded portion 212. In use, the threaded portion 212 extends out from the front side of the shaft head 20 and is engaged with the power component 220 through a threaded transmission structure, thus forming a lead screw structure. In use, the user can operate the power component 220 to rotate it. The thread engagement causes the power component 220 and the movable rod 210 to move relative to each other, thereby driving the movable rod 210 to move along the axial direction of the roller body 10. Its structure is simple. By using the lead screw structure to convert rotational torque into linear thrust, it can obtain mechanical gain amplification of force, allowing the mating part 211 to apply a larger thrust to the rear end of the shaft head 20, which is beneficial for the disassembly and separation of the shaft head 20 and the roller body 10. In practical applications, in addition to the above structure, the power component 220 and the movable rod 210 can also be connected by a gear and rack structure. The power component 220 acts as a gear, and the movable rod 210 is provided with a rack. By rotating the gear, the rack is driven to move, thereby driving the movable rod 210 to move. The specific configuration can be set according to the actual use requirements.

[0034] Furthermore, the main frame 100 includes a first plate 110 and a second plate 120, the first plate 110 and the second plate 120 are arranged at intervals, the second plate 120 is used to cooperate with the roller body 10, the first plate 110 is provided with a first through hole 111 for the threaded part 212 to pass through, and the power member 220 is provided on the first plate 110 and can rotate relative to the first plate 110.

[0035] Understandably, such as Figure 1 , Figure 2 and Figure 3 As shown, the first plate 110 and the second plate 120 are spaced apart along the front-to-back direction. The first plate 110 is located in front of the second plate 120 and has a first through hole 111. In use, the second plate 120 mates with the roller body 10, and the shaft head 20 is located behind the first plate 110. The threaded part 212 passes through the first through hole 111 and extends to the front side of the first plate 110. The power component 220 is located in front of the first plate 110 and can rotate relative to the first plate 110. Thus, rotating the power component 220 can drive the movable rod 210 to move back and forth relative to the first plate 110. The structure is simple and easy to use. In practical applications, the specific structure of the main frame 100 can be changed according to the arrangement of the power component 220.

[0036] Specifically, the power component 220 is a nut that abuts against the first plate 110. It is understandable that, as Figure 1 , Figure 2 and Figure 3As shown, the power component 220 is a nut that abuts against the front side of the first plate 110, and the movable rod 210 is a screw. In use, it extends into the roller body 10 from the rear end and passes through the shaft head 20. The mating part 211 is the head of the screw and abuts against the rear end of the shaft head 20. The threaded part 212 extends from the front end of the shaft head 20 and is threadedly engaged with the power component 220. Its structure is simple and easy to manufacture and use.

[0037] In practical applications, in addition to the above-mentioned structure, the power component 220 can also be rotatably connected to the first through hole 111 of the first plate 110, or it can be other structural forms with threaded holes. The movable rod 210 can also adopt other structures. For example, the mating part 211 can be rotatably connected to the rear end of the movable rod 210. It can be rotated to fold or unfold. When folded, the movable rod 210 can be inserted from front to back and pass through the shaft head 20. After the shaft head 20 is inserted, the mating part 211 unfolds and abuts against the rear end of the shaft head 20. Alternatively, the mating part 211 can be a telescopic or rotatable pawl, connected to the movable rod 210 through an elastic element. It can be retracted into the movable rod 210 or extended relative to the movable rod 210. When retracted into the movable rod 210, the movable rod 210 can be inserted from front to back and pass through the shaft head 20. After the shaft head 20 is inserted, the mating part 211 extends relative to the movable rod 210 and abuts against the rear end of the shaft head 20. The specific configuration can be set according to the actual usage requirements.

[0038] In some embodiments, the second plate 120 is provided with a second through hole 121 through which the shaft head 20 passes, and the second plate 120 can be sleeved on the shaft head 20 through the second through hole 121 and abut against the end of the roller body 10.

[0039] Understandably, such as Figure 1 , Figure 2 and Figure 3 As shown, the second plate 120 has a second through hole 121. The diameter of the second through hole 121 is smaller than the outer diameter of the roller body 10. In use, the second plate 120 can be sleeved on the shaft head 20 through the second through hole 121 and abut against the end of the roller body 10, thereby achieving a fit with the roller body 10. The structure is simple and easy to use. In practical applications, in addition to the above structure, the second plate 120 can also fit with the roller body 10 through snap-fit ​​or threaded connection, etc., depending on the configuration of the roller body 10.

[0040] Furthermore, an external support structure is provided between the first plate 110 and the second plate 120, which enables the first plate 110 and the second plate 120 to have a tendency to move away from each other.

[0041] Understandably, such as Figure 1 , Figure 2 and Figure 3As shown, by setting an external support structure, the first plate 110 and the second plate 120 tend to move away from each other. Specifically, the first plate 110 tends to move forward, ensuring that the mating part 211 and the rear end of the shaft head 20, as well as the power member 220 and the first plate 110, maintain a contact relationship, thus subjecting the shaft head 20 to a forward force. Simultaneously, the second plate 120 tends to move backward, maintaining a contact relationship with the roller body 10, thus subjecting the roller body 10 to a backward force. This facilitates the disassembly and separation of the shaft head 20 from the roller body 10, making it easier to use. In practical applications, in addition to the external support structure, the first plate 110 and the second plate 120 can also be connected and fixed by a fixing rod. The reaction force of the shaft head 20 on the movable rod 210 when the mating part 211 abuts against the rear end of the shaft head 20 causes the second plate 120 to abut against the roller body 10. The external support structure can be set according to actual usage requirements.

[0042] Specifically, the external support structure includes a driver 130, which has a power output end 131 that can drive movement. The driver 130 is disposed on the first plate 110 or the second plate 120, and the power output end 131 acts on the second plate 120 or the first plate 110 respectively.

[0043] Understandably, such as Figure 1 , Figure 2 and Figure 3 As shown, the external support structure includes a driver 130, which is located on the rear side of the first plate 110. The rear side of the driver 130 is a power output end 131 that acts on the front side of the second plate 120. The driver 130 drives the power output end 131 to move backward, thereby causing the second plate 120 to be subjected to a backward force and the first plate 110 to be subjected to a forward force, so that the two tend to move away from each other. Furthermore, the power output by the driver 130 can be used to further assist in the disassembly and separation of the shaft head 20 and the roller body 10, which is convenient for use.

[0044] In practical applications, the driver 130 can also be located on the second plate 120, with its power output end 131 acting on the first plate 110. In addition to the above structure, the external support structure can also include an elastic element, such as a compression spring. The elastic element is located between the first plate 110 and the second plate 120, with both ends acting on the first plate 110 and the second plate 120 respectively, thereby giving them a tendency to move away from each other. Alternatively, a connecting rod can be provided between the first plate 110 and the second plate 120, with a threaded nut on the connecting rod. By rotating the nut, the nut moves and pushes against the first plate 110 or the second plate 120, thereby giving them a tendency to move forward or backward. The specific configuration can be set according to the actual usage requirements.

[0045] In some embodiments, the actuators 130 are provided in a plurality of manner and are evenly spaced around the movable rod 210. It is understood that by providing a plurality of actuators 130 and distributing them evenly around the movable rod 210, the first plate 110 and the second plate 120 can be subjected to more uniform force, reducing the possibility of plate deflection and improving structural stability.

[0046] Specifically, there are two actuators 130, which are respectively distributed on opposite sides of the movable rod 210. It is understood that, as Figure 1 , Figure 2 and Figure 3 As shown, the two actuators 130 are respectively disposed on the left and right sides of the movable rod 210 and symmetrically distributed relative to the movable rod 210. Their structure is simple and ensures that the first plate 110 and the second plate 120 are subjected to uniform force on their left and right sides, making them easy to use. In practical applications, the two actuators 130 can also be disposed on the upper and lower opposite sides of the movable rod 210, or three actuators 130 can be disposed at even intervals around the movable rod 210, depending on the actual usage requirements.

[0047] Specifically, the actuator 130 is a hydraulic jack. It is understood that by setting the actuator 130 to a hydraulic jack, both the first plate 110 and the second plate 120 can be subjected to a greater thrust, which facilitates the disassembly and separation of the auxiliary shaft head 20 from the roller body 10 and makes it easier to use. In practical applications, in addition to a hydraulic jack, the actuator 130 can also be a cylinder, an electric push rod, etc., depending on the actual usage requirements.

[0048] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A device for disassembling the shaft end of a roller-type workpiece, characterized in that, include: Main frame, which is used to cooperate with the roller body; A movable rod is provided on the main frame. One end of the movable rod is provided with a mating part. The movable rod can pass through a shaft head and the mating part abuts against the end of the shaft head inserted into the roller body. A power component is connected to or driven by the movable rod to drive or move the movable rod along the axial direction of the roller body, so that the movable rod can move and separate relative to the roller body by pushing against the shaft head through the mating part.

2. The roller workpiece shaft head disassembly device according to claim 1, characterized in that, The movable rod is provided with a threaded part that can extend out of the shaft head. The power component and the threaded part are connected by a threaded structure for transmission. The power component can rotate and drive the movable rod to move along the axial direction of the roller body through the threaded structure.

3. The roller workpiece shaft head disassembly device according to claim 2, characterized in that, The main frame includes a first plate and a second plate, which are spaced apart. The second plate is used to cooperate with the roller body. The first plate has a first through hole for the threaded part to pass through. The power component is located on the first plate and can rotate relative to the first plate.

4. The roller workpiece shaft head disassembly device according to claim 3, characterized in that, The power component is a nut that abuts against the first plate.

5. The roller workpiece shaft head disassembly device according to claim 3, characterized in that, The second plate is provided with a second through hole for the shaft head to pass through, and the second plate can be sleeved on the shaft head through the second through hole and abut against the end of the roller body.

6. The roller workpiece shaft head disassembly device according to claim 3, characterized in that, An external support structure is provided between the first plate and the second plate, which enables the first plate and the second plate to have a tendency to move away from each other.

7. The roller workpiece shaft head disassembly device according to claim 6, characterized in that, The external support structure includes a driver, which has a power output end capable of driving movement. The driver is disposed on the first plate or the second plate, and the power output end acts on the second plate or the first plate respectively.

8. The roller workpiece shaft head disassembly device according to claim 7, characterized in that, The actuator is provided in multiple units and is evenly spaced around the movable rod.

9. The roller workpiece shaft head disassembly device according to claim 8, characterized in that, The actuator is provided in two parts and is respectively distributed on opposite sides of the movable rod.

10. The roller workpiece shaft head disassembly device according to claim 7, characterized in that, The actuator is a hydraulic jack.

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