A hydraulic cylinder mounting device
Patent Information
- Application Number
- CN202521329160.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-26
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-06-26
AI Technical Summary
[0005]为解决目前人工更换液压缸更换效率低的技术问题，本申请提供一种液压缸安装装置
[0018]根据本申请实施例提供的安装装置，在轧机外部先将液压缸置于支架的安装通孔内，然后通过多个螺纹紧固件抵接于液压缸，使得支架与液压缸固定，然后用天车吊运支架上的吊环，由于吊环靠近于第一侧面或第三侧面，如此设置在吊运过程中使得液压缸可以以横向设置的姿态保持并移动至安装位置，无需人工托举就可以实现液压缸的第四侧面与机架的贴合，再用螺纹件将液压缸与机架连接即可，提高了作业效率，节省人力。
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Figure CN224786068U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of hydraulic cylinder installation technology, and specifically relates to a hydraulic cylinder installation device. Background Technology
[0002] As a cold rolling mill, the 20-roll mill is equipped with a hydraulic cylinder on one side to adjust the roll gap, thus ensuring the reliable precision of the products rolled by the 20-roll mill. To guarantee the stability of the precision of the products rolled by the 20-roll mill, the hydraulic cylinder needs to be replaced periodically for maintenance.
[0003] In related technologies, the hydraulic cylinder is positioned laterally by manual lifting, meaning that the extension and retraction direction is consistent with the horizontal direction. The fixing hole at the fixed end is coaxially connected with the mounting hole on the frame (the frame of the cold rolling mill). Then, the threaded part is passed through the fixing hole at the fixed end of the hydraulic cylinder and the frame to complete the connection between the hydraulic cylinder and the frame.
[0004] However, the lifting hole of the hydraulic cylinder is located on the end face of the fixed end, so it can only be lifted with the telescopic end facing downwards. The installation posture of the hydraulic cylinder is with the telescopic end facing one side, which requires manual rotation of the hydraulic cylinder by 90°. Due to the limited space of the surrounding equipment, only one person can lift the hydraulic cylinder weighing up to 40kg by hand and rotate it 90° to replace it, which is inefficient and time-consuming. Summary of the Invention
[0005] To address the technical problem of low efficiency in manual hydraulic cylinder replacement, this application provides a hydraulic cylinder installation device.
[0006] This application provides a hydraulic cylinder mounting device. The fixed end of the hydraulic cylinder is rectangular and has a first side, a second side, a third side, and a fourth side. The first and third sides are arranged opposite each other along the height direction, and the second and fourth sides are arranged opposite each other along a direction perpendicular to the height direction. The fixed end is provided with a fixing hole penetrating the second and fourth sides. The mounting device includes:
[0007] The fixing component includes a bracket and threaded fasteners. The bracket has a mounting through hole into which the fixed end of the hydraulic cylinder extends and an opening communicating with the mounting through hole. The axial direction of the mounting through hole is parallel to the extension and retraction direction of the hydraulic cylinder. The opening faces the frame. The bracket has at least two threaded holes, wherein two of the threaded holes correspond to the positions of the first side and the third side, respectively. The bracket has a lifting ring, and the lifting ring is close to the first side or the third side. The threaded fasteners are correspondingly provided with the threaded holes, and the threaded fasteners are threaded into the corresponding threaded holes and abut against the fixed end.
[0008] The overhead crane is detachably connected to the lifting ring.
[0009] In some embodiments, the bracket includes a first clamping part, a second clamping part, and a connecting part. The first clamping part and the second clamping part are disposed opposite each other along the height direction. The two ends of the connecting part are respectively connected to the first clamping part and the second clamping part. The connecting part, the first clamping part, and the second clamping part together form the mounting through hole with the opening. The two threaded holes are respectively located in the first clamping part and the second clamping part. The lifting ring is located in the first clamping part or the second clamping part.
[0010] In some embodiments, the first clamping part and / or the second clamping part are clamping plates, the clamping plates having a plurality of threaded holes, each of the threaded holes being fitted with the threaded fastener.
[0011] In some embodiments, the height of the first clamping portion is higher than that of the second clamping portion, and the first clamping portion extends out of the second clamping portion in a direction away from the connecting portion.
[0012] In some embodiments, the clamping plate extends beyond the fixed end along the extension and retraction direction of the hydraulic cylinder.
[0013] In some embodiments, the connecting part is a connecting rod, which is offset from the fixing hole of the hydraulic cylinder.
[0014] In some embodiments, the connecting part is a connecting plate, and the connecting plate is provided with a clearance hole to avoid the fixing hole of the hydraulic cylinder.
[0015] In some embodiments, the connection portion is provided with the threaded fastener.
[0016] In some embodiments, the two ends of the connecting portion are welded to the first clamping portion and the second clamping portion.
[0017] In some embodiments, the lifting ring is disposed on the first clamping portion, and the bracket further includes a balance block slidably connected to the first clamping portion.
[0018] According to the installation device provided in the embodiments of this application, the hydraulic cylinder is first placed in the mounting through hole of the bracket outside the rolling mill. Then, multiple threaded fasteners are used to abut against the hydraulic cylinder, so that the bracket and the hydraulic cylinder are fixed. Then, the lifting ring on the bracket is hoisted by an overhead crane. Since the lifting ring is close to the first or third side, this arrangement allows the hydraulic cylinder to be held in a horizontal position and moved to the installation position during the hoisting process. The fourth side of the hydraulic cylinder can be fitted with the frame without manual lifting. Then, the hydraulic cylinder is connected to the frame with threaded parts, which improves the work efficiency and saves manpower.
[0019] An opening is provided on the bracket to prevent interference between the bracket and the machine frame, ensuring that the hydraulic cylinder fits snugly against the machine frame and thus achieving the connection between the hydraulic cylinder and the machine frame. Attached Figure Description
[0020] Figure 1 A front view of the mounting device engaging with a hydraulic cylinder is shown in one or more embodiments of this application.
[0021] Figure 2 A side view of the mounting device in conjunction with the hydraulic cylinder is shown.
[0022] Figure 3 A top view showing the mounting device in conjunction with the hydraulic cylinder is shown.
[0023] Explanation of reference numerals in the attached figures:
[0024] 100-Hydraulic cylinder, 110-Fixed end, 111-First side, 112-Second side, 113-Third side, 115-End face, 116-Fixed hole, 120-Telescopic end; 200-Fixed assembly, 210-Bracket, 211-First clamping part, 212-Second clamping part, 213-Connecting part, 214-Lifting ring; 220-Threaded fastener; 300-Frame. Detailed Implementation
[0025] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0026] The hydraulic cylinder used to adjust the roll gap in a 20-roll mill has a rectangular fixed end with a first side, a second side, a third side, and a fourth side. The first and third sides are arranged opposite each other along the height direction, while the second and fourth sides are arranged opposite each other perpendicular to the height direction. The fixed end has fixing holes that penetrate the second and fourth sides, and the end face of the fixed end has a lifting hole.
[0027] According to the first aspect of this application, a hydraulic cylinder installation device is provided, which enables a single person to quickly connect the hydraulic cylinder to the archway and complete the installation of the hydraulic cylinder.
[0028] This application is described below with reference to the accompanying drawings and specific embodiments:
[0029] Please see Figure 1The installation device includes a fixing component 200 and an overhead crane (not shown in the figure). The fixing component 200 includes a bracket 210 and a threaded fastener 220.
[0030] The bracket 210 has a mounting through hole and an opening. The mounting through hole allows the fixed end 110 of the hydraulic cylinder 100 to extend into, thus confining the hydraulic cylinder 100 within the mounting through hole of the bracket 210. The opening communicates with the mounting through hole and faces the frame 300, allowing the fourth side of the hydraulic cylinder 100 to fit against the archway of the cold rolling mill, facilitating the installation of the hydraulic cylinder 100 on the archway. The axial direction of the mounting through hole is parallel to the extension and retraction direction of the hydraulic cylinder 100, allowing the hydraulic cylinder 100 to be installed laterally. The bracket 210 has at least two threaded holes, corresponding to the positions of the first side 111 and the third side 113, respectively. The bracket 210 has a lifting ring 214, which is close to either the first side 111 or the third side 113. When the first side 111 of the hydraulic cylinder 100 is facing upwards, the lifting ring 214 is close to the first side 111; when the third side 113 of the hydraulic cylinder 100 is facing upwards, the lifting ring 214 is close to the third side 113.
[0031] Threaded fasteners 220 are correspondingly provided with threaded holes, and the number of threaded fasteners 220 is the same as the number of threaded holes. The threads of the threaded fasteners 220 extend into the corresponding threaded holes and abut against the fixed end 110, thus achieving relative fixation between the bracket 210 and the hydraulic cylinder 100. In some embodiments, the threaded fastener 220 can be a screw, with the shank end abutting against the fixed end 110. In other embodiments, the threaded fastener 220 can also be a screw with a nut.
[0032] The overhead crane is detachably connected to the lifting ring 214, while the bracket 210 is connected to the hydraulic cylinder 100 via threaded fasteners 220. The overhead crane can lift the hydraulic cylinder 100 in a lateral orientation. By adjusting the height and position of the overhead crane, the fourth side of the hydraulic cylinder 100 is brought into close contact with the frame 300. The operator inserts the threaded parts into the fixing hole 116 of the hydraulic cylinder 100 and the mounting hole of the frame 300 to complete the installation of the hydraulic cylinder 100. Then, the hook of the overhead crane is removed from the lifting ring 214.
[0033] The hydraulic cylinder 100 installation device provided in this application first fixes the bracket 210 to the hydraulic cylinder 100 outside the rolling mill, and then uses an overhead crane to lift the lifting ring 214 on the bracket 210 so that the hydraulic cylinder 100 can be held and moved to the installation position in a horizontally set posture. The fourth side of the hydraulic cylinder 100 can be fitted with the frame 300 without manual lifting. Then, the hydraulic cylinder 100 is connected to the frame 300 with threaded parts, which improves the work efficiency and saves manpower.
[0034] In some embodiments, please refer to Figure 2 The bracket 210 includes a first clamping part 211, a second clamping part 212, and a connecting part 213. The first clamping part 211 and the second clamping part 212 are arranged opposite each other in the height direction. The two ends of the connecting part 213 are respectively connected to the first clamping part 211 and the second clamping part 212, thus forming a C-shaped bracket 210. The first clamping part 211, the second clamping part 212, and the connecting part 213 together form an open mounting through hole, wherein two threaded holes are located in the first clamping part 211 and the second clamping part 212 respectively, and the lifting ring 214 is located in the first clamping part 211 or the second clamping part 212.
[0035] The following example illustrates the situation further, with the lifting ring 214 located in the first clamping part 211, the first clamping part 211 corresponding to the first side 111, and the height of the first clamping part 211 being higher than that of the second clamping part 212.
[0036] In some embodiments, the first clamping part 211 is a clamping plate and the second clamping part 212 is a clamping bar, or the first clamping part 211 is a clamping bar and the second clamping part 212 is a clamping plate. In other embodiments, both the first clamping part 211 and the second clamping part 212 are clamping plates. The clamping plates facilitate the arrangement of more threaded holes and threaded fasteners 220, increasing the abutment points between the first clamping part 211 and the first side 111, and between the second clamping part 212 and the third side 113. This arrangement can improve the connection stability between the bracket 210 and the hydraulic cylinder 100, and improve the installation accuracy of the hydraulic cylinder 100.
[0037] In some embodiments, the first clamping part 211, the connecting part 213, and the first clamping part 211 can be an integral structure obtained by stamping deformation. In other embodiments, the two ends of the connecting part 213 are welded to the first clamping part 211 and the second clamping part 212, resulting in high connection strength and good stability of the hydraulic cylinder 100 during the hoisting process.
[0038] In some embodiments, please refer to Figure 2 Along the direction away from the connecting part 213, the first clamping part 211 extends beyond the second clamping part 212. That is, compared to the edge of the opening of the second clamping part 212, the edge of the opening of the first clamping part 211 is closer to the frame 300. This arrangement results in the first clamping part 211 being larger than the second clamping part 212, thus shifting the center of gravity of the hydraulic cylinder 100 plus the bracket 210 to a higher position, making it easier for the operator to fine-tune the posture of the hydraulic cylinder 100. For further explanation, please refer to [link to relevant documentation]. Figure 3 After the bracket 210 is fitted over the hydraulic cylinder 100, part of the hydraulic cylinder 100 extends out of the outlet to prevent the first clamping part 211 and the second clamping part 212 from interfering with the frame 300 near the edge of the opening.
[0039] In some embodiments, along the extension and retraction direction of the hydraulic cylinder 100, i.e., laterally, the clamping plate extends beyond the fixed end 110, further increasing the working area between the clamping plate and the fixed end 110. In other embodiments, the clamping plate may cover a portion of the fixed end 110, or the clamping plate may fully cover the first side 111 of the fixed end 110, which also enables the lifting point to be transferred from the end face 115 of the hydraulic cylinder 100 to the first side 111.
[0040] In some embodiments, please refer to Figure 1 The connecting part 213 is a connecting rod, which corresponds to the position of the second side 112. The connecting rod is offset from the fixing hole 116 of the hydraulic cylinder 100, making it convenient for operators to thread parts into the fixing hole 116. In some embodiments, the connecting part 213 is a connecting plate, which has a clearance hole to avoid the fixing hole 116 of the hydraulic cylinder 100. This also allows operators to thread parts into the fixing hole 116 and increases the number of threaded holes on the connecting plate, further improving the connection stability between the bracket 210 and the hydraulic cylinder 100.
[0041] In some embodiments, the bracket 210 further includes a balance block slidably connected to the first clamping part 211 to finely adjust the posture of the hydraulic cylinder 100, so that the fixing hole 116 is coaxially connected with the mounting hole of the frame 300. In a specific implementation, a slide rail can be provided on the first clamping part 211, and the balance block is provided with a slide groove. The gap of the slide rail is located in the slide groove, so as to realize the sliding connection between the balance block and the first clamping part 211.
[0042] The slide rail can extend along the extension / retraction direction of the hydraulic cylinder 100, or it can extend in a direction perpendicular to the extension / retraction direction. In some embodiments, two slide rails are provided, which are perpendicular to each other, one of which is aligned with the extension / retraction direction of the hydraulic cylinder 100, and the other is perpendicular to the extension / retraction direction. Two balance blocks are also provided, which are slidably disposed on the two slide rails respectively, to improve the alignment accuracy between the fixing hole 116 of the hydraulic cylinder 100 and the mounting hole of the frame 300.
[0043] Overhead cranes are commonly used hoisting equipment in industrial enterprises and belong to the prior art. For more details, please refer to the existing technology disclosures. This application will not repeat them here.
[0044] The following details the usage of the hydraulic cylinder 100 mounting device provided in this application:
[0045] First, hang the bracket 210 on the overhead crane hook. Then, slip the bracket 210 over the fixed end 110 of the hydraulic cylinder 100, ensuring that the lifting ring 214 on the bracket 210 is positioned above the center of gravity of the horizontally positioned hydraulic cylinder 100. Insert screws into the corresponding threaded holes and rotate them to secure them against the fixed end 110, ensuring the connection between the bracket 210 and the hydraulic cylinder 100. The overhead crane then lifts the bracket 210 and the hydraulic cylinder 100 together and transports them to the side of the frame 300. At this point, the telescopic end 120 of the hydraulic cylinder 100 faces one side. By fine-tuning the height and position of the overhead crane hook and the counterweights, ensure that the four fixing holes 116 on the fixed end 110 correspond one-to-one with the four mounting holes on the frame 300 and are coaxially connected. The operator then inserts the four threaded fittings into the fixing holes 116 and tightens them to connect the hydraulic cylinder 100 and the frame 300. Finally, loosen the screws, separating the bracket 210 from the hydraulic cylinder 100, completing the installation of the hydraulic cylinder 100.
[0046] This application adjusts the lifting position of the hydraulic cylinder 100 from the end face 115 to the side using the bracket 210. Note that the lifting ring 214 of the bracket 210 is located above the center of gravity of the hydraulic cylinder 100, so that the hydraulic cylinder 100 can be maintained in a lateral posture during lifting. This not only avoids the disadvantages of operators lifting the hydraulic cylinder 100 and needing to adjust it by 90°, which is time-consuming, laborious, and poses safety hazards, but also improves work efficiency (saving 2 hours of replacement time compared to the previous method).
[0047] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0048] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.
[0049] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0050] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0051] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. A hydraulic cylinder mounting device, wherein the fixed end of the hydraulic cylinder is cuboid in shape, the fixed end of the hydraulic cylinder has a first side, a second side, a third side, and a fourth side, the first side and the third side are arranged opposite each other along the height direction, the second side and the fourth side are arranged opposite each other along the direction perpendicular to the height direction, and the fixed end is provided with a fixing hole penetrating the second side and the fourth side, characterized in that, The installation device includes: A fixing component includes a bracket and threaded fasteners. The bracket has a mounting through hole into which the fixed end of the hydraulic cylinder extends and an opening communicating with the mounting through hole. The axial direction of the mounting through hole is parallel to the extension and retraction direction of the hydraulic cylinder. The opening faces the frame of the cold rolling mill. The bracket has at least two threaded holes, with two threaded holes corresponding to the positions of the first side and the third side, respectively. The bracket has a lifting ring, which is close to the first side or the third side. The threaded fasteners are correspondingly provided with the threaded holes, and the threads of the threaded fasteners extend into the corresponding threaded holes and abut against the fixed end. The overhead crane is detachably connected to the lifting ring.
2. The hydraulic cylinder mounting device according to claim 1, characterized in that, The bracket includes a first clamping part, a second clamping part, and a connecting part. The first clamping part and the second clamping part are arranged opposite each other along the height direction. The two ends of the connecting part are respectively connected to the first clamping part and the second clamping part. The connecting part, the first clamping part, and the second clamping part together form the mounting through hole with the opening. The two threaded holes are respectively located in the first clamping part and the second clamping part. The lifting ring is located in the first clamping part or the second clamping part.
3. The hydraulic cylinder mounting device according to claim 2, characterized in that, The first clamping part and / or the second clamping part are clamping plates, and the clamping plates are provided with multiple threaded holes, each of which is fitted with a threaded fastener.
4. The hydraulic cylinder mounting device according to claim 3, characterized in that, The height of the first clamping part is higher than that of the second clamping part, and the first clamping part extends out of the second clamping part in a direction away from the connecting part.
5. The hydraulic cylinder mounting device according to claim 3, characterized in that, The clamping plate extends from the fixed end along the extension and retraction direction of the hydraulic cylinder.
6. The hydraulic cylinder mounting device according to any one of claims 2-5, characterized in that, The connecting part is a connecting rod, which is offset from the fixing hole of the hydraulic cylinder.
7. The hydraulic cylinder mounting device according to any one of claims 2-5, characterized in that, The connecting part is a connecting plate, and the connecting plate is provided with a clearance hole to avoid the fixing hole of the hydraulic cylinder.
8. The hydraulic cylinder mounting device according to any one of claims 2-5, characterized in that, The connecting portion is provided with the threaded hole and the threaded fastener threaded into the threaded hole.
9. The hydraulic cylinder mounting device according to any one of claims 2-5, characterized in that, The two ends of the connecting part are welded to the first clamping part and the second clamping part.
10. The hydraulic cylinder mounting device according to any one of claims 2-5, characterized in that, The lifting ring is disposed on the first clamping part, and the bracket also includes a balance block slidably connected to the first clamping part.