A gantry crane brake disc quick replacement tool clamp

Abstract

The utility model relates to the field of tool fixture, and disclose a gantry type crane brake disc quick replacement tool fixture, adopt modularization design, mainly by three -dimensional space fine adjustment subassembly, clamping mechanism and ejection subassembly constitute, three -dimensional space fine adjustment subassembly can realize multidirectional precision regulation, ensure accurate alignment of fixture and brake disc, motor drive rotation axis drive clamping mechanism rotation, adapt to different operation angle, and clamping mechanism moves through hydraulic cylinder and connecting rod transmission system drive sliding seat, cooperate spring buffer and suppression board effect of quick -change subassembly, realize the flexible clamping of brake disc, and ejection subassembly adopts hydraulic ejection rod, and real -time monitoring ejecting force is combined pressure sensor, avoids work piece damage, the fixture supports the quick replacement of clamping piece, adapts to different specifications brake disc, significantly simplifies operation procedure, reduces the risk of high -altitude operation, improves the replacement efficiency, and its structure is compact, and convenient operation is convenient for the quick maintenance and replacement of gantry type crane brake disc.

Description

Technical Field

[0001] This utility model relates to the field of tooling fixtures, specifically a tooling fixture for quick replacement of brake discs on gantry cranes. Background Technology

[0002] The gantry crane brake disc quick-change tooling fixture is a specialized tooling developed for the maintenance and replacement of gantry crane brake discs. It aims to achieve efficient and safe brake disc replacement through modular design and intelligent auxiliary functions. As heavy engineering machinery, the brake disc of a gantry crane is a key component ensuring braking safety, and it needs to be replaced periodically after enduring friction and loads for a long time. However, because the brake disc is installed on the motor shaft end, the surrounding space is small and it is tightly connected to the motor assembly. Traditional replacement methods require multiple people to work together, which is not only difficult to operate but also easily prolongs the operation time due to space constraints. Therefore, a specialized fixture is urgently needed to solve this problem, adapt to different specifications of brake discs, simplify the operation process, and reduce operational risks.

[0003] First, traditional tooling lacks spatial fine-tuning capabilities, leading to installation position deviations and affecting the accuracy of the braking system. Second, manual clamping is inefficient, with each replacement taking too long and severely impacting equipment utilization. Furthermore, fixed fixtures are difficult to adapt to the replacement needs of different brake disc models, often causing installation difficulties due to specification mismatch. Therefore, we have proposed a gantry crane brake disc quick-change tooling fixture. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a quick-change tooling fixture for gantry crane brake discs, thus solving the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a quick-change tooling fixture for gantry crane brake discs, a three-dimensional space fine-tuning component, and a connecting seat. The bottom surface of the adjusting component on the vertical surface of the three-dimensional space fine-tuning component is fixedly installed with a connecting seat, and the bottom surface of the connecting seat is symmetrically fixedly installed with support plates near both sides. A rotating shaft is rotatably connected between the two support plates on the connecting seat. A motor is fixedly installed on the outer wall of one of the support plates, and the output shaft of the motor is coaxially and fixedly connected to the rotating shaft. A connecting hole is provided on one side wall of the mounting box, which leads to the other side. The rotating shaft and the connecting hole on the mounting box are coaxially and fixedly connected. A square hole is provided in the middle of the plane of the mounting box. Square sliding holes are provided on the remaining two side walls of the mounting box that are not connected to the rotating shaft. The mounting box is symmetrically provided with clamping bodies, each clamping body is provided with a quick-change component, and the clamping body is also provided with an ejection component.

[0006] Preferably, the clamping body includes a sliding bar, a hydraulic cylinder, a piston rod, and a connecting plate. A hydraulic cylinder is fixedly installed on each of the two inner walls opposite to the square hole on the mounting box. A piston rod is driven to the hydraulic cylinder. A connecting plate is fixedly installed on the end plane of the piston rod opposite to the hydraulic cylinder. A hinge shaft is symmetrically fixedly installed on each of the two side walls of the connecting plate. Sliding bars are symmetrically fixedly installed on each side wall of the mounting box corresponding to the two sides of the square sliding hole. A hinge shaft is symmetrically fixedly installed on each side wall of the sliding bar.

[0007] Preferably, the clamping body further includes a connecting rod and a sliding seat. The bottom surface of the sliding seat is provided with a sliding groove. The two side walls of the sliding seat are symmetrically fixed with hinge shafts. The connecting rod is curved and a hinge hole is provided at the curved part of the connecting rod. One end of the connecting rod is provided with a waist-shaped hole and the other end is provided with a waist-shaped hole. The first waist-shaped hole on the first connecting rod is tangentially and slidably connected to the first hinge shaft on the connecting plate; the second hinge hole on the first connecting rod is hinged to the second hinge shaft on the sliding bar; and the second waist-shaped hole on the first connecting rod is tangentially and slidably connected to the third hinge shaft on the sliding seat.

[0008] Preferably, the top surface of the sliding seat is symmetrically fixedly installed with support plates near the two sides, and the top surface of the sliding seat is symmetrically fixedly installed with support limiting plates between the two support plates. The support limiting plates are provided with sliding holes, and the two support limiting plates are connected by a connecting plate, which is also provided with sliding holes.

[0009] Preferably, the quick-change assembly includes a second hydraulic cylinder, a second piston rod, a second connecting rod, and a sliding block. The second hydraulic cylinder is mounted on a connecting plate on the sliding seat, and the second piston rod is drivenly connected to the second hydraulic cylinder. The second piston rod and the sliding hole on the connecting plate on the sliding seat are coaxially and slidably connected. A hinge seat is fixedly mounted on the plane of the end of the second piston rod away from the second hydraulic cylinder. Two second connecting rods are hinged in the hinge seat, and the two second connecting rods are also hinged to each other and cross each other. The other end of the second connecting rod is hinged to the sliding block, and the sliding block is slidably connected to the sliding hole on the support limiting plate.

[0010] Preferably, the quick-change assembly further includes springs and a pressure plate. Multiple springs are fixedly installed on the plane of the sliding block away from the connecting rod 2, and the springs are vertically and equidistantly distributed. A pressure plate is fixedly installed on the other end of the spring. The inner walls of the pressing plate and the supporting limiting plate correspond to each other and form a connecting space in the middle.

[0011] Preferably, the clamping part of the second clamping member is V-shaped, the clamping part of the first clamping member is irregularly shaped, and connecting blocks are symmetrically fixedly installed on the planes of the first clamping member and the second clamping member away from the clamping parts. One of the clamping bodies is connected to the first clamping member, and the other clamping body is connected to the second clamping member.

[0012] Preferably, the ejection assembly includes an ejection cylinder and an ejection rod. The ejection cylinder is fixedly installed at the middle of the upper plane of the connecting plate, and the ejection rod is drivenly connected to the ejection cylinder. A rubber pad is fixedly installed on the end face of the ejection rod away from the ejection cylinder. A thin pressure sensor is fixedly installed inside the rubber pad on the ejector rod.

[0013] Preferably, the ejection assembly is located between the two left and right clamping members one and the two left and right clamping members two.

[0014] Compared with the prior art, this utility model provides a quick-change tooling fixture for gantry crane brake discs, which has the following advantages: 1. This gantry crane brake disc quick-change tooling fixture can flexibly adjust the overall position through a three-dimensional space micro-adjustment component. In conjunction with the motor-driven rotating shaft, it can achieve multi-angle rotation of the mounting box. Combined with the linkage transmission structure driven by the hydraulic cylinder in the fixture, it can quickly drive the sliding seat to complete the initial positioning and clamping of the brake disc. At the same time, the quick-change component utilizes the synergistic effect of the second hydraulic cylinder, the second cross linkage, and the spring pressure plate to complete the replacement and fastening of the clamping parts in a short time, which greatly shortens the adjustment and loading / unloading time during the brake disc replacement process and significantly improves the overall operation efficiency.

[0015] 2. The gantry crane's brake disc quick-change tooling fixture adopts an intelligent auxiliary system. The pressure sensor can display the disassembly force status in real time, avoiding the problem of brake disc or motor shaft damage caused by uneven force during traditional replacement.

[0016] 3. The quick-change tooling fixture for the gantry crane brake disc reduces weight while ensuring structural strength, making operation more convenient and flexible. The adjustable jacking force of 10-30KN provided by the hydraulic system can adapt to the standardized replacement needs of different brake disc specifications, solving the compatibility problem caused by the single specification of traditional tools, making it more applicable and reducing maintenance costs.

[0017] 4. The gantry crane brake disc quick-change tooling fixture, with "V" shaped clamping parts and irregular clamping parts, can adapt to the shape of brake discs of different specifications. The springs and pressure plates in the quick-change assembly can provide buffered clamping force to avoid damage to the brake disc caused by rigid clamping. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded schematic diagram of the clamping device of this utility model; Figure 3 This is a schematic diagram of the quick-change component of this utility model.

[0019] In the diagram: 1. Three-dimensional space fine-tuning component; 2. Connecting seat; 3. Mounting box; 4. Sliding bar; 5. Hydraulic cylinder one; 6. Piston rod one; 7. Connecting plate; 8. Connecting rod one; 9. Sliding seat; 10. Support limiting plate; 11. Hydraulic cylinder two; 12. Piston rod two; 13. Ejection cylinder; 14. Ejection rod; 15. Connecting rod two; 16. Sliding block; 17. Clamping component one; 18. Clamping component two; 19. Spring; 20. Pressing plate; 21. Rotating shaft; 22. Motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 A quick-change tooling fixture for gantry crane brake discs, comprising a three-dimensional space fine-tuning component 1 and a connecting seat 2. The bottom surface of the adjusting component on the vertical surface of the three-dimensional space fine-tuning component 1 is fixedly installed with the connecting seat 2, and the bottom surface of the connecting seat 2 is symmetrically fixedly installed with support plates near both sides. A rotating shaft 21 is rotatably connected between two support plates on the connecting seat 2. A motor 22 is fixedly installed on the outer wall of one of the support plates. The output shaft of the motor 22 and the rotating shaft 21 are coaxially and fixedly connected. A connecting hole is provided on one side wall of the mounting box 3, which leads to the other side. The rotating shaft 21 and the connecting hole on the mounting box 3 are coaxially fixedly connected. A square hole is provided in the middle of the plane of the mounting box 3. Square sliding holes are provided on the remaining two side walls of the mounting box 3 that are not connected to the rotating shaft 21. The mounting box 3 is symmetrically equipped with clamping bodies, which are equipped with quick-change components and ejection components.

[0022] Furthermore, the clamping body includes a sliding bar 4, a hydraulic cylinder 5, a piston rod 6, and a connecting plate 7. The hydraulic cylinder 5 is fixedly installed on the two inner walls opposite to the square holes on the mounting box 3. The piston rod 6 is driven and connected to the hydraulic cylinder 5. The connecting plate 7 is fixedly installed on the plane of the piston rod 6 away from the hydraulic cylinder 5. The first hinge shaft is symmetrically fixedly installed on the two side walls of the connecting plate 7. The sliding bar 4 is symmetrically fixedly installed on the two side walls of the mounting box 3 corresponding to the two sides of the square sliding hole. The second hinge shaft is symmetrically fixedly installed on the two side walls of the sliding bar 4.

[0023] Furthermore, the clamp body also includes a connecting rod 8 and a sliding seat 9. The bottom surface of the sliding seat 9 is provided with a sliding groove. The two side walls of the sliding seat 9 are symmetrically fixed with hinge shafts 3. The connecting rod 8 is curved, and the curved part of the connecting rod 8 is provided with a hinge hole. One end of the connecting rod 8 is provided with a waist-shaped hole 1, and the other end is provided with a waist-shaped hole 2. The first oblong hole on the connecting rod 8 and the first hinge shaft on the connecting plate 7 are tangentially and slidably connected; the hinge hole on the connecting rod 8 and the second hinge shaft on the sliding bar 4 are hinged; and the second oblong hole on the connecting rod 8 and the third hinge shaft on the sliding seat 9 are tangentially and slidably connected.

[0024] Furthermore, symmetrical support plates are fixedly installed on the top surface of the sliding seat 9 near both sides. Support limiting plates 10 are symmetrically fixedly installed between the two support plates on the top surface of the sliding seat 9. Sliding holes are provided on the support limiting plates 10, and a connecting plate is connected between the two support limiting plates 10. Sliding holes are also provided on the connecting plate.

[0025] Furthermore, the quick-change assembly includes a second hydraulic cylinder 11, a second piston rod 12, a second connecting rod 15, and a sliding block 16. The second hydraulic cylinder 11 is mounted on the connecting plate on the sliding seat 9. The second piston rod 12 is drivenly connected to the second hydraulic cylinder 11. The second piston rod 12 and the sliding hole on the connecting plate on the sliding seat 9 are coaxially and slidably connected. A hinge seat is fixedly mounted on the plane of the end of the second piston rod 12 away from the second hydraulic cylinder 11. Two connecting rods 15 are hinged in the hinge seat, and the two connecting rods 15 are also hinged to each other and cross each other. The other end of the connecting rod 15 is hinged to the sliding block 16. The sliding block 16 is slidably connected to the sliding hole on the support limiting plate 10.

[0026] Furthermore, the quick-change assembly also includes springs 19 and pressure plates 20. Multiple springs 19 are fixedly installed on the plane of the sliding block 16 away from the connecting rod 2 15, and the springs 19 are vertically and equidistantly distributed. The pressure plate 20 is fixedly installed on the other end of the springs 19. The inner walls of the pressing plate 20 and the supporting limiting plate 10 correspond to each other and form a connecting space in the middle.

[0027] Furthermore, the clamping part of clamping component 2 18 is V-shaped. This shape design can better adapt to the contour of round or near-round workpieces. During clamping, the workpiece can be positioned and clamped from two directions, improving the stability and reliability of clamping. The clamping part of clamping component 17 is irregularly shaped. In order to adapt to some workpieces with special shapes such as brake discs, it can better fit the contour of the workpiece and achieve precise clamping. Furthermore, connecting blocks are symmetrically fixed on the planes of clamping component 17 and clamping component 2 18 away from the clamping parts. The connecting blocks are used to connect clamping component 17 and clamping component 2 18 to the corresponding clamping body respectively, so that the clamping components can work under the drive of the clamping body to realize the clamping and releasing action of the workpiece. One of the fixtures is connected to a clamping element 17, and the other fixture is connected to a clamping element 2 18. Different clamping elements can be flexibly selected according to the specific shape and size of workpieces such as brake discs, thereby improving the versatility and applicability of the tooling fixture.

[0028] Furthermore, the ejection assembly includes an ejection cylinder 13 and an ejection rod 14. The ejection cylinder 13 is fixedly installed in the middle of the upper plane of the connecting plate 7. The ejection rod 14 is drivenly connected to the ejection cylinder 13. A rubber pad is fixedly installed on the end face of the ejection rod 14 away from the ejection cylinder 13. When ejecting the workpiece, the rubber pad can prevent the ejection rod 14 from damaging the workpiece surface, while increasing the friction between the workpiece and the workpiece to ensure that the workpiece can be ejected stably. A thin pressure sensor is fixedly installed inside the rubber pad on the ejector rod 14. The thin pressure sensor can monitor the pressure applied by the ejector rod 14 during the ejection of the workpiece in real time and feed the pressure signal back to the control system. The control system can accurately adjust the working pressure of the ejector cylinder 13 based on these feedback signals, thereby achieving precise control of the ejection force and ensuring that the ejection operation of the workpiece is completed smoothly without damaging the workpiece.

[0029] Furthermore, the ejector assembly is located between the two left and right clamping members 17 and the two left and right clamping members 28.

[0030] Structural Description: Three-dimensional space fine-tuning component 1: It is the core of the spatial position adjustment of the tooling fixture. It has an adjustment component on the vertical surface and is fixed to the connecting seat 2 on the bottom surface. It can realize the position fine-tuning in the three directions of X, Y and Z, solve the problem of traditional tooling installation position deviation, ensure precise alignment with the brake disc, and provide a precise reference for subsequent clamping and replacement operations. Connecting seat 2: Located below the three-dimensional space fine-tuning component 1, with symmetrical support plates fixed on both sides of the bottom surface. The support plates are used to support the rotating shaft 21 and provide a mounting carrier for the motor 22. They serve as a bridge connecting the three-dimensional space fine-tuning component 1 and the rotating and clamping structure below, transmitting position adjustment actions. Mounting box 3: One side has a connecting hole for coaxial fixation with clamping part 18, a square hole in the middle, and square sliding holes on both sides. Hydraulic cylinder 5 is installed on the inner wall of the square hole, and the sliding hole allows the sliding seat 9 and other components to move. It is a load-bearing frame that integrates the clamping body, quick-change assembly and ejection assembly, providing installation and movement space for each component. Sliding bar 4: Symmetrically fixed at the corresponding square sliding holes on both sides of the mounting box 3, with hinge shafts on both sides, which are hinged to the hinge holes of connecting rod 8. At the same time, it cooperates with the sliding groove of sliding seat 9 to provide sliding guidance for sliding seat 9, ensuring that it moves smoothly along a fixed trajectory. It is a guide support for the movement of the clamping body. Hydraulic cylinder 5: Fixed on the inner wall of the square hole of the mounting box 3, and connected to piston rod 6 for transmission. As the power source of the clamping body, the piston rod 6 is hydraulically driven to extend and retract, which drives the subsequent connecting rod and sliding seat to move, providing stable power for the clamping action of the brake disc. Piston rod 6: One end is connected to hydraulic cylinder 5, and the other end is fixed to connecting plate 7. It converts the hydraulic energy of hydraulic cylinder 5 into linear motion, and drives connecting plate 7 to move through extension and retraction to realize power transmission. Connecting plate 7: It has symmetrical hinge shafts on both sides, connecting piston rod 6 and connecting rod 8. It receives the power of piston rod 6 and transmits it to connecting rod 8. It is slidably connected to the waist-shaped hole of connecting rod 8 through hinge shaft 1, converting linear motion into the swing of connecting rod. Link 1 8: It is curved, with a hinge hole at the bend and waist-shaped holes at both ends. The hinge hole is hinged to the hinge shaft 2 of the sliding bar 4, and the waist-shaped holes are slidably connected to the hinge shaft 1 of the connecting plate 7 and the hinge shaft 3 of the sliding seat 9, respectively, so as to convert the movement of the connecting plate 7 into the sliding of the sliding seat 9, and realize the direction transmission of force and motion. Sliding seat 9: The bottom surface has a sliding groove, the two sides have hinge shafts three, the top surface has a support plate and a support limiting plate 10. It slides through the sliding groove and the sliding bar 4, receives the power of the connecting rod 8 and drives the upper parts to move. It is the foundation for supporting quick-change components and clamping parts, and provides an installation platform for them. Support limiting plate 10: Fixed between the support uprights on the top surface of the sliding seat 9, with sliding holes to provide sliding guidance for the sliding block 16, forming a connection space with the pressing plate 20 to accommodate the brake disc, while limiting the position of the workpiece to ensure accurate clamping, and is a key limiting structure for workpiece positioning. Hydraulic cylinder 2 11: mounted on the connecting plate of the sliding seat 9, and connected to piston rod 2 12 in transmission, is the power source of the quick-change assembly. By driving piston rod 2 12 to extend and retract, it drives connecting rod 2 15 to move, thereby realizing the opening and closing of sliding block 16 and providing power for the quick replacement of clamping parts. Piston rod 2 12: It is connected to hydraulic cylinder 2 11. One end has a hinge seat, which cooperates with the sliding hole of the connecting plate of sliding seat 9 to convert the power of hydraulic cylinder 2 11 into linear motion. It drives connecting rod 2 15 to swing through the hinge seat. It is the core component for power transmission of quick-change assembly. Ejection cylinder 13: Fixed in the middle of the upper plane of the connecting plate 7, and connected to the ejection rod 14 for transmission. As the power source of the ejection assembly, it drives the ejection rod 14 to extend and retract, and controls the ejection force with the pressure sensor to eject the brake disc from the mounting position, so as to realize the convenient disassembly of the workpiece. Ejector rod 14: One end is connected to ejector cylinder 13, and the other end has a rubber pad with a pressure sensor. It directly contacts the brake disc and applies ejector force. The rubber pad avoids damage to the workpiece, and the pressure sensor monitors the pressure in real time to ensure that the ejection process is safe and controllable. Link 2 15: Cross-hinged, one end is connected to the hinge seat of piston rod 2 12, and the other end is connected to sliding block 16. It converts the linear motion of piston rod 2 12 into the relative sliding of sliding block 16. The cross structure realizes the synchronous opening and closing of the two sliding blocks 16, ensuring uniform clamping force. Sliding block 16: It cooperates with the sliding hole of the support limiting plate 10, is connected to the second connecting rod 15 on one side and the spring 19 on the other side. It moves along the sliding hole under the drive of the second connecting rod 15 and transmits the force to the pressing plate 20 through the spring 19. It is the force transmission and execution component in the quick change assembly. Clamping component 17: The clamping part is irregularly shaped, and there is a connecting block on the plane opposite to the clamping part. It is connected to the clamping body through the connecting block. The irregularly shaped clamping part is adapted to a brake disc with a special shape, and fits the contour of the workpiece to achieve precise clamping. It works with clamping component 2 18 to meet the needs of different workpieces. Clamping component 2 18: The clamping part is V-shaped, and there is a connecting block on the plane opposite to the clamping part. It is coaxially fixed with the connecting hole of the mounting box 3. The V-shaped structure is adapted to the circular or near-circular brake disc. It is positioned and clamped from both sides. The connecting block is linked with the clamping body to ensure clamping stability. Spring 19: It is vertically and equidistantly fixed between the sliding block 16 and the pressing plate 20. It provides buffering during clamping and adapts to the workpiece size deviation through elastic deformation, so that the pressing plate 20 applies pressure evenly and avoids damage to the brake disc by rigid clamping. Pressing plate 20: Corresponds to the inner wall of the support limiting plate 10, forming a connecting space in the middle. It is connected to the sliding block 16 via spring 19, directly contacting and pressing the brake disc. Under the action of spring 19, it adheres to the surface of the workpiece and works with the support limiting plate 10 to achieve stable fixation of the workpiece. Rotating shaft 21: It is fixed coaxially with the output shaft of motor 22, connects two support plates and clamping part 2 18, and rotates under the drive of motor 22, driving the mounting box 3 and the upper part to rotate, adjusting the angle of the clamp to adapt to operation in narrow spaces and improving the flexibility of operation. Motor 22: Fixed to the outer wall of the support plate, the output shaft is connected to the rotating shaft 21, providing rotational power to the rotating shaft 21. By controlling the forward and reverse rotation of the motor 22, the mounting box 3 can be adjusted to multiple angles to meet the position requirements under different working conditions and simplify the operation process.

[0031] Working principle: When the device is working, the three-dimensional space fine-tuning component 1 first achieves overall position calibration through fine-tuning of the X, Y, and Z axes to ensure accurate initial alignment with the brake disc. Then, the motor 22 drives the rotating shaft 21 to rotate, which drives the mounting box 3 and connected components to adjust to the appropriate working angle, providing convenience for operation in confined spaces. Then, the quick-change component starts to work: the hydraulic cylinder 21 pushes the piston rod 22 to extend and retract. The hinge seat at the end of the piston rod 212 drives the cross-hinged connecting rod 25 to move. The connecting rod 215 drives the sliding block 16 along the sliding hole of the support limiting plate 10. As the sliding block 16 moves closer or further away, the spring 19 on the sliding block 16 is compressed and deformed, transmitting force to the pressing plate 20. The pressing plate 20 and the supporting limiting plate 10 cooperate to form a clamping space. The buffering effect of the spring 19 achieves flexible clamping of the brake disc, avoiding rigid damage. At this time, if the brake disc is round or near-round, the "V" shaped clamping part of the clamping part 2 18 can clamp stably from both sides; if it is a special shape, the irregular clamping part of the clamping part 17 can accurately fit the contour of the workpiece. The two clamping parts can be quickly adapted to the clamping body through the connecting block to meet different specification requirements. Before replacing the brake disc, install the laser alignment indicator on a stable part of the fixture near the motor shaft end, ensuring that the laser emission direction is parallel to the center line of the motor shaft. Activate the device, and the laser beam will be projected onto the corresponding plane of the brake disc installation location, forming a clear spot. At this point, the operator manually adjusts the three-dimensional space fine-tuning component 1 according to the spot position, making the spot as close as possible to the theoretical center of the brake disc mounting hole, thus initially positioning the fixture in a suitable area. Then, the hydraulic cylinder 5 inside the mounting box 3 is activated, pushing the piston rod 6 to extend and retract. The piston rod 6 drives the connecting plate 7 to move linearly. The hinge shafts on both sides of the connecting plate 7 slide along the oblong holes of the connecting rod 8, causing the curved connecting rod 8 to swing around the hinge shaft 2 on the sliding bar 4. The oblong hole 2 at the other end of the connecting rod 8 drives the sliding seat 9 to move smoothly along the trajectory of the sliding bar 4 through the hinge shaft 3, realizing the opening and closing action of the fixture and completing the initial positioning of the brake disc.

[0032] After the brake disc is securely clamped, the ejection assembly is activated: the ejection cylinder 13 on the connecting plate 7 drives the ejection rod 14 to extend. The rubber pad at the end of the ejection rod 14 contacts the brake disc, and the thin pressure sensor inside the rubber pad monitors the ejection force in real time to ensure that the pressure is within the adjustable range of 10-30KN, preventing overload damage to the motor shaft or brake disc. The ejection rod 14 is located between the left and right clamping parts 17 and 18, and can apply force evenly from the center position. Combined with the clamping force of the clamping body, the old brake disc is smoothly ejected. Throughout the process, the three-dimensional space micro-adjustment assembly 1 ensures positional accuracy, the motor 22 and the rotating shaft 21 achieve angle adaptation, and the clamping body composed of hydraulic cylinder 5, connecting rod 8, etc. provides basic clamping force. The quick-change assembly achieves quick change and flexible clamping through hydraulic cylinder 11, connecting rod 15, etc. The ejection assembly completes safe disassembly with the help of the ejection cylinder 13 and pressure sensor. Ultimately, it achieves the effect of single-person operation, no motor disassembly required, and efficient replacement of brake discs of different specifications, greatly reducing operational risks and time costs.

[0033] 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 quick-change tooling fixture for brake discs of a gantry crane, characterized in that, include: Three-dimensional space fine adjustment component (1) and connecting seat (2). The bottom surface of the adjustment component on the vertical surface of the three-dimensional space fine adjustment component (1) is fixedly installed with the connecting seat (2). The bottom surface of the connecting seat (2) is symmetrically fixedly installed with support plates near both sides. A rotating shaft (21) is rotatably connected between the two support plates on the connecting seat (2). A motor (22) is fixedly installed on the outer wall of one of the support plates. The output shaft of the motor (22) and the rotating shaft (21) are coaxially fixedly connected. A connecting hole is provided on one side wall of the mounting box (3) to the other side. The rotating shaft (21) and the connecting hole on the mounting box (3) are coaxially fixedly connected. A square hole is provided in the middle of the plane of the mounting box (3). Square sliding holes are provided on the remaining two side walls of the mounting box (3) that are not connected to the rotating shaft (21). The mounting box (3) is symmetrically provided with clamping bodies, which are equipped with quick-change components and ejection components.

2. The quick-change tooling fixture for gantry crane brake discs according to claim 1, characterized in that, The clamping device includes a sliding bar (4), a hydraulic cylinder (5), a piston rod (6), and a connecting plate (7). The hydraulic cylinder (5) is fixedly installed on the two inner walls opposite to the square hole on the mounting box (3). The piston rod (6) is connected to the hydraulic cylinder (5) for transmission. The connecting plate (7) is fixedly installed on the plane of the piston rod (6) away from the hydraulic cylinder (5). The two side walls of the connecting plate (7) are respectively symmetrically fixedly installed with hinge shafts. The two side walls of the mounting box (3) are symmetrically fixedly installed with sliding bars (4) on both sides corresponding to the two sides of the square sliding hole. The two side walls of the sliding bars (4) are symmetrically fixedly installed with hinge shafts.

3. A quick-change tooling fixture for gantry crane brake discs according to claim 2, characterized in that, The clamp body also includes a connecting rod (8) and a sliding seat (9). The bottom surface of the sliding seat (9) is provided with a sliding groove. The two side walls of the sliding seat (9) are symmetrically fixed with hinge shafts. The connecting rod (8) is bent and a hinge hole is provided at the bend of the connecting rod (8). One end of the connecting rod (8) is provided with a waist-shaped hole and the other end is provided with a waist-shaped hole. The first waist-shaped hole on the first connecting rod (8) and the first hinge shaft on the connecting plate (7) are tangentially and slidably connected. The hinge hole on the first connecting rod (8) and the second hinge shaft on the sliding bar (4) are hinged together. The second waist-shaped hole on the first connecting rod (8) and the third hinge shaft on the sliding seat (9) are tangentially and slidably connected.

4. A quick-change tooling fixture for gantry crane brake discs according to claim 3, characterized in that, The top surface of the sliding seat (9) is symmetrically fixed with support plates near the two sides. The top surface of the sliding seat (9) is symmetrically fixed with support limiting plates (10) between the two support plates. The support limiting plates (10) are provided with sliding holes, and the two support limiting plates (10) are connected by a connecting plate. The connecting plate is also provided with sliding holes.

5. A quick-change tooling fixture for gantry crane brake discs according to claim 4, characterized in that, The quick-change assembly includes a second hydraulic cylinder (11), a second piston rod (12), a second connecting rod (15), and a sliding block (16). The second hydraulic cylinder (11) is mounted on the connecting plate on the sliding seat (9). The second piston rod (12) is connected to the second hydraulic cylinder (11) via a transmission. The second piston rod (12) and the sliding hole on the connecting plate on the sliding seat (9) are slidably connected coaxially. A hinge seat is fixedly installed on the plane of the second piston rod (12) away from the second hydraulic cylinder (11). Two second connecting rods (15) are hinged in the hinge seat. The two second connecting rods (15) are also hinged to each other and cross each other. The other end of the second connecting rod (15) is hinged to the sliding block (16). The sliding block (16) is slidably connected to the sliding hole on the support limiting plate (10).

6. A quick-change tooling fixture for gantry crane brake discs according to claim 5, characterized in that, The quick-change assembly also includes springs (19) and pressure plates (20). Multiple springs (19) are fixedly installed on the plane of the sliding block (16) away from the connecting rod (15), and the springs (19) are vertically and equally spaced. A pressure plate (20) is fixedly installed on the other end of the springs (19). The inner walls of the pressing plate (20) and the supporting limiting plate (10) correspond to each other and form a connecting space in the middle.

7. A quick-change tooling fixture for gantry crane brake discs according to claim 1, characterized in that, The clamping part of clamping part two (18) is "V" shaped, the clamping part of clamping part one (17) is irregular, and connecting blocks are symmetrically fixed on the plane of clamping part one (17) and clamping part two (18) away from the clamping part. One of the clamps is connected to the clamping member one (17), and the other clamp is connected to the clamping member two (18).

8. A quick-change tooling fixture for gantry crane brake discs according to claim 2, characterized in that, The ejection assembly includes an ejection cylinder (13) and an ejection rod (14). The ejection cylinder (13) is fixedly installed at the middle of the upper plane of the connecting plate (7). The ejection rod (14) is connected to the ejection cylinder (13) in a transmission manner. A rubber pad is fixedly installed on the end face of the ejection rod (14) away from the ejection cylinder (13). A thin pressure sensor is fixedly installed inside the rubber pad on the ejector rod (14).

9. A quick-change tooling fixture for gantry crane brake discs according to claim 7, characterized in that, The ejection assembly is located between the two left and right clamping members one (17) and the two left and right clamping members two (18).

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