A quick replacement device for cutting blades of a profile steel flying shear device
Patent Information
- Application Number
- CN202522307787.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-10-31
AI Technical Summary
[0003]目前，多数型钢生产企业在更换飞剪剪刃时，主要依靠人工拆装和搬运，因剪刃本身重量较大，人工作业方式不仅操作者劳动强度大、工作效率低，而且在搬运和拆装过程中，存在剪刃掉落砸伤操作人员的安全隐患
[0013]本实用新型提供一种型钢飞剪设备的剪刃快速更换装置，对比现有技术，其有益效果为：通过运输小车实现了新旧剪刃的运送，可利用旋转盘组件180º旋转，实现辅助拆装机构中用于拆卸旧剪刃部分和用于安装新剪刃部分的位置切换；本实用新型通过定位机构保证了辅助拆装机构与飞剪设备相对位置的准确性，不仅在剪刃拆装过程中可使解锁油缸活塞杆将锁紧块推开，缩短了新旧剪刃更换时间，降低了操作人员劳动强度，而且确保了新剪刃安装的位置精度。总之，本实用新型通过运输机构、定位机构和辅助拆装机构的配合，实现了对磨损后飞剪剪刃的快速更换，达到了提高工作效率和飞剪剪刃安装精度、消除安全生产隐患的目的。
Smart Images
Figure CN224879486U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel rolling technology, specifically to a quick blade replacement device for a steel profile flying shear. Background Technology
[0002] In the process of producing structural steel, flying shears are key equipment for cutting the head, tail, and length of structural steel. Because the blades of flying shears are subjected to huge impact and friction during frequent cutting operations, they wear out quickly and need to be replaced frequently.
[0003] Currently, most steel profile manufacturers rely on manual disassembly and handling when replacing flying shear blades. Because the blades themselves are quite heavy, this manual method not only results in high labor intensity and low work efficiency for operators, but also poses a safety hazard of blades falling and injuring workers during handling and disassembly. Furthermore, manual replacement makes it difficult to guarantee the precision of blade installation, affecting the shearing quality of the steel profiles and thus hindering the efficient development of the steel profile manufacturing industry. Utility Model Content
[0004] This utility model provides a quick blade replacement device for a steel profile flying shear, which aims to quickly replace worn flying shear blades through the cooperation of a transport mechanism, a positioning mechanism, and an auxiliary disassembly and assembly mechanism, thereby improving work efficiency, flying shear blade installation accuracy, and eliminating potential safety hazards.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A quick blade changing device for a steel profile flying shear, comprising a transport mechanism, a positioning mechanism, and an auxiliary disassembly and assembly mechanism; The transport mechanism includes a transport trolley, a base assembly, a rotating disk assembly, and a support plate. The transport trolley is equipped with wheels at its bottom. The base assembly is fixedly mounted on the transport trolley. The base assembly is equipped with a fixed seat with a sleeve structure. The rotating disk assembly is arranged in the fixed seat. The support plate is mounted on the rotating disk assembly. The support plate is equipped with a tray extending in the front-rear direction. The positioning mechanism includes a positioning seat and a positioning block. The positioning seat is fixed at the edge of the support plate extending in the front-rear direction. The positioning block is installed on the flying shear equipment. Both the positioning seat and the positioning block are provided with positioning holes. The position of the support plate is fixed by positioning pins passing through the positioning holes on the positioning seat and the positioning block. The auxiliary disassembly and assembly mechanism comprises two parts, which are respectively installed on the support plate extending in the front and rear directions. One part is used to assist in the disassembly of worn shear blades, and the other part is used to assist in the installation of new shear blades.
[0006] The quick-change device for the shear blades of the aforementioned steel flying shear equipment includes a bracket, a bracket fixing seat, and an unlocking cylinder in each part of the auxiliary disassembly and assembly mechanism. Two sets of brackets are arranged on the left and right sides, forming a cantilever beam structure extending forward or backward, with their fixed ends assembled with the bracket fixing seats. The bracket fixing seats are vertically installed on the support plate extending in the front-back direction, and the unlocking cylinder is installed on the bracket fixing seats. The piston rod of the unlocking cylinder extends forward or backward, pushing open the shear blade locking block at the bottom of the shear blade when the piston rod is extended.
[0007] The quick-change device for the shear blades of the above-mentioned steel flying shear equipment includes a rotating disk assembly of the transport mechanism comprising a turntable, a rotating shaft, and bearings; the rotating shaft is a vertically arranged stepped shaft, with its upper large-diameter shaft fixedly assembled with the turntable, and the bearing mounted on the lower small-diameter shaft; the outer ring of the bearing is press-fitted into the fixed seat of the base assembly, and the inner ring of the bearing is interference-fitted with the rotating shaft; the turntable is fixedly connected to the support plate.
[0008] The quick-change device for the shear blade of the above-mentioned steel flying shear equipment has two sets of bearings arranged vertically. The two sets of bearings are tapered roller bearings arranged back to back. An annular boss is provided on the inner wall of the fixed seat to isolate the two sets of bearings.
[0009] The quick-change device for the shear blade of the above-mentioned steel flying shear equipment, the base assembly of the transport mechanism is also provided with a reinforcing liner, the reinforcing liner is an L-shaped liner, and is evenly arranged along the circumference of the outer wall of the fixed seat.
[0010] The quick-change device for the shear blades of the above-mentioned steel flying shear equipment has a bottom-closed structure for the fixed base.
[0011] The aforementioned steel flying shear equipment features a quick blade changing device, in which the transport trolley is driven by a motor or hydraulic cylinder.
[0012] The aforementioned steel profile flying shear equipment features a quick blade replacement device, in which the transport trolley runs along a track laid on a horizontal surface.
[0013] This invention provides a quick blade replacement device for a steel profile flying shear. Compared with existing technologies, its advantages are as follows: The transport trolley facilitates the transport of both old and new blades; the rotating disc assembly allows for 180° rotation, enabling the switching of positions between the old blade removal and new blade installation parts within the auxiliary disassembly / assembly mechanism; the positioning mechanism ensures the accuracy of the relative position between the auxiliary disassembly / assembly mechanism and the flying shear equipment. This not only allows the unlocking cylinder piston rod to push open the locking block during blade removal / assembly, shortening the blade replacement time and reducing operator workload, but also ensures the precise positioning of the new blade. In summary, this invention, through the coordination of the transport mechanism, positioning mechanism, and auxiliary disassembly / assembly mechanism, achieves rapid replacement of worn flying shear blades, thereby improving work efficiency, blade installation accuracy, and eliminating potential safety hazards. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Top view; Figure 3 This is a schematic diagram of a transportation organization; Figure 4 This is a schematic diagram of the cooperation structure between the positioning mechanism of this utility model and the steel flying shear equipment; Figure 5 , Figure 6 This is a schematic diagram illustrating the process of the unlocking cylinder pushing open the locking block at the bottom of the scissor blade.
[0015] Explanation of each label in the diagram: 1 represents a transport trolley; 2 is the base assembly, 2-1 is the fixing seat, 2-2 is the annular boss, and 2-3 is the reinforcing liner. 3 is the rotating disk assembly, 3-1 is the rotating shaft, 3-2 is the bearing, and 3-3 is the turntable; 4 is the support plate, and 4-1 is the support plate extending in the front and rear directions; 5 is the auxiliary disassembly and assembly mechanism, 5-1 is the bracket, 5-2 is the unlocking cylinder, and 5-3 is the bracket fixing seat; 6 represents the shear blade, and 6-1 represents the shear blade locking block; 7 is the positioning seat; 8 represents the track; 9 represents the flying shear device, 9-1 represents the positioning block, and 9-2 represents the wedge-shaped shear blade pressure block. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0017] See Figure 1. Figure 2 , Figure 3, Figure 4 This utility model provides a quick-change device for the shear blade of a steel profile flying shear. It includes a transport mechanism, a positioning mechanism, and an auxiliary disassembly / assembly mechanism. The transport mechanism comprises a transport trolley 1, a base assembly 2, a rotating disk assembly 3, and a support plate 4. The transport trolley 1 has wheels at its bottom and can run along a track 8 laid on the ground driven by a motor or hydraulic cylinder. The base assembly 2 is fixedly mounted on the transport trolley 1. The base assembly 2 has a sleeve-structured fixing seat 2-1 with a closed bottom. The rotating disk assembly 3 is arranged in the fixing seat 2-1, and the support plate 4 is mounted on the rotating disk assembly 3. The device includes a support plate 4-1 extending in the front-to-back direction; the positioning mechanism includes a positioning seat 7 and a positioning block 9-1, the positioning seat 7 is fixed at the edge of the support plate 4-1 extending in the front-to-back direction, and the positioning block 9-1 is installed on the flying shear device 9. Positioning holes are provided in both the positioning seat 7 and the positioning block 9-1, and the support plate 4 is positioned and fixed by positioning pins passing through the positioning holes on the positioning seat and the positioning block; the auxiliary disassembly and assembly mechanism includes two parts, which are respectively installed on the support plate 4-1 extending in the front-to-back direction. One part is used to assist in the disassembly of worn shear blades, and the other part is used to assist in the installation of new shear blades.
[0018] See Figure 2 , Figure 5 , Figure 6 The quick-change device for the shear blade of the steel flying shear equipment described in this utility model includes a bracket 5-1, a bracket fixing seat 5-3, and an unlocking cylinder 5-2 in each part of its auxiliary disassembly and assembly mechanism 5. Two sets of brackets 5-1 are arranged on the left and right sides, forming a cantilever beam structure extending forward or backward, with their fixed ends assembled with the bracket fixing seat 5-3. The bracket fixing seat 5-3 is vertically installed on the support plate 4-1 extending in the front-back direction of the support plate, and the unlocking cylinder 5-2 is installed on the bracket fixing seat 5-3. The piston rod of the unlocking cylinder 5-2 extends forward or backward, as shown in the attached diagram. Figure 5 , Figure 6 As shown in the specific embodiment of this utility model, the base of the blade 6 of the flying shear device 9 is pressed and fixed by the wedge-shaped blade pressing block 9-2. After the blade 6 is installed, the wedge-shaped surface of the wedge-shaped blade pressing block 9-2 is pressed against the wedge-shaped surface of the blade base and fixed by the blade locking block provided on the base of the blade 6. When disassembling and assembling the blade 6, the piston rod of the unlocking cylinder 5-2 extends and pushes open the blade locking block 6-1 at the bottom of the blade 6, releasing the locking effect on the blade 6. The blade 6 is supported by the bracket 5-1 and moves backward with the transport trolley 1, and is removed from the flying shear device 9.
[0019] See Figure 1 , Figure 3The quick-change device for the shear blade of the steel flying shear equipment described in this utility model includes a rotating disk assembly 3 of its transport mechanism, comprising a turntable 3-3, a rotating shaft 3-1, and bearings 3-2. The rotating shaft 3-1 is a vertically arranged stepped shaft, with its upper large-diameter shaft fixedly assembled to the turntable 3-3, and the lower small-diameter shaft fitted with bearings 3-2. The turntable 3-3 is fixedly connected to a support plate 4. In a preferred embodiment of this utility model, two sets of bearings 3-2 are arranged vertically, and the two sets of bearings 3-2 are conical rollers arranged back-to-back. The outer ring of the sub-bearing 3-2 is press-fitted into the fixed seat 2-1 of the base assembly, and the inner ring of the bearing 3-2 is interference-fitted with the rotating shaft 3-1. An annular boss 2-2 for isolating the two sets of bearings is provided on the inner wall of the fixed seat 2-1. The radial and axial rigidity of the bearings can be increased by the two sets of tapered roller bearings arranged back to back. In particular, when the support plate 4-1 extending in the front and rear directions of the support plate 4 does not bear the load at the same time, it can improve the ability to resist overturning moment and prevent the support plate 4 from becoming unstable.
[0020] See also Figure 1 , Figure 3 In a preferred embodiment of the quick-change device for the shear blade of the steel flying shear equipment described in this utility model, a reinforcing liner 2-3 is further provided in the base assembly 2 of the transport mechanism. The reinforcing liner 2-3 is an L-shaped liner and is evenly arranged along the outer circumference of the fixed seat 2-1.
[0021] See Figures 1 to 6When replacing the blades of a steel profile flying shear using this invention, firstly, the auxiliary disassembly mechanism 5, which assists in removing worn blades, is moved to the window position of the flying shear via the transport trolley 1. The support plate 4 is fixed in position by the positioning pin passing through the positioning seat 7 and the positioning block on the flying shear 9. The bracket 5-1 of the auxiliary disassembly mechanism 5 extends under the blades of the flying shear 9. The piston rod of the unlocking cylinder 5-2 extends, pushing open the blade locking block 6-1 at the bottom of the blade 6, releasing the locking effect on the blade 6. The blade 6 is then supported by the bracket 5-1 of the auxiliary disassembly mechanism 5. Subsequently, the positioning pin passing through the positioning seat 7 and the positioning block on the flying shear 9 is pulled out, the transport trolley 1 moves backward, and the auxiliary disassembly mechanism 5, which assists in removing worn blades, is removed from the flying shear. 9. Remove from the flying shear device; after the transport trolley 1 moves to the set position, the turntable 3-3 of the rotating disk assembly 3 rotates 180º, and the support plate 4 rotates 180º accordingly. The part of the auxiliary disassembly and assembly mechanism 5 used to assist in the disassembly of worn shear blades and the part used to assist in the installation of new shear blades switch positions; then, the part of the auxiliary disassembly and assembly mechanism 5 used to assist in the disassembly of new shear blades is moved to the window position of the flying shear device by the transport trolley 1, and the position of the support plate 4 is fixed by the positioning pin passing through the positioning seat 7 and the positioning block on the flying shear device 9; the new shear blade is installed on the flying shear device in the reverse order of the disassembly of worn shear blades; the transport trolley 1 moves backward, and the part of the auxiliary disassembly and assembly mechanism 5 used to assist in the disassembly of new shear blades is removed from the flying shear device 9, completing the shear blade replacement operation of the flying shear device.
Claims
1. A quick-change device for the shear blades of a steel profile flying shear, characterized in that: It is equipped with a transportation mechanism, a positioning mechanism, and an auxiliary assembly / disassembly mechanism; The transport mechanism includes a transport trolley (1), a base assembly (2), a rotating disk assembly (3), and a support plate (4). The transport trolley (1) is provided with wheels at the bottom. The base assembly (2) is fixedly mounted on the transport trolley (1). The base assembly (2) is provided with a fixed seat (2-1) with a sleeve structure. The rotating disk assembly (3) is arranged in the fixed seat (2-1). The support plate (4) is mounted on the rotating disk assembly (3). The support plate (4) is provided with a tray (4-1) extending in the front-to-back direction. The positioning mechanism includes a positioning seat (7) and a positioning block (9-1). The positioning seat (7) is fixed at the edge of the support plate (4-1) extending in the front-back direction of the support plate (4). The positioning block (9-1) is installed on the flying shear device (9). Positioning holes are provided in both the positioning seat (7) and the positioning block (9-1). The support plate (4) is positioned and fixed by the positioning pins passing through the positioning holes on the positioning seat and the positioning block. The auxiliary disassembly and assembly mechanism consists of two parts, which are respectively installed on the support plate (4-1) extending in the front and rear directions of the support plate. One part is used to assist in the disassembly of the worn shear blade, and the other part is used to assist in the installation of the new shear blade.
2. The quick-change device for the shear blade of the steel profile flying shear according to claim 1, characterized in that: In each part of the auxiliary disassembly and assembly mechanism (5), a bracket (5-1), a bracket fixing seat (5-3), and an unlocking cylinder (5-2) are respectively provided; the bracket (5-1) is provided in two sets on the left and right, forming a cantilever beam structure extending forward or backward, and its fixed end is assembled with the bracket fixing seat (5-3); the bracket fixing seat (5-3) is vertically installed on the support plate (4-1) extending in the front and rear direction of the support plate, and the unlocking cylinder (5-2) is installed on the bracket fixing seat (5-3); the piston rod of the unlocking cylinder (5-2) extends forward or backward, and pushes open the shear blade locking block (6-1) at the bottom of the shear blade (6) when the piston rod is extended.
3. The quick-change device for the shear blade of the steel profile flying shear according to claim 1 or 2, characterized in that: The rotating disk assembly (3) of the transport mechanism includes a turntable (3-3), a rotating shaft (3-1), and a bearing (3-2); the rotating shaft (3-1) is a vertically arranged stepped shaft, with its upper large-diameter shaft fixedly assembled with the turntable (3-3), and the lower small-diameter shaft fitted with the bearing (3-2); the outer ring of the bearing (3-2) is press-fitted into the fixed seat (2-1) of the base assembly, and the inner ring of the bearing is interference-fitted with the rotating shaft (3-1); the turntable (3-3) is fixedly connected to the support plate (4).
4. The quick-change device for the shear blade of the steel profile flying shear according to claim 3, characterized in that: The bearing (3-2) is provided in two sets, one above the other. The two sets of bearings are tapered roller bearings arranged back to back. An annular boss (2-2) is provided on the inner wall of the fixed seat (2-1) to isolate the two sets of bearings.
5. The quick-change device for the shear blade of the steel profile flying shear according to claim 4, characterized in that: The base assembly (2) of the transport mechanism is also provided with a reinforcing liner (2-3), which is an L-shaped liner and is evenly arranged along the outer wall of the fixed seat (2-1).
6. The quick-change device for the shear blade of the steel profile flying shear according to claim 5, characterized in that: The mounting base (2-1) has a closed bottom structure.
7. The quick-change device for the shear blade of the steel profile flying shear according to claim 1 or 2, characterized in that: The transport trolley (1) is driven by a motor or hydraulic cylinder.
8. The quick-change device for the shear blade of the steel profile flying shear according to claim 7, characterized in that: The transport vehicle (1) runs along the track (8) laid on the horizontal ground.