Lifting portal frame structure

Abstract

The invention discloses a lifting portal frame structure which comprises two portal frames arranged symmetrically, hoisting hooks for hoisting components are arranged on the portal frames, and driving modules for driving the hoisting hooks to move on the portal frames in the X-axis direction, the Z-axis direction and the Y-axis direction are further arranged on the portal frames. The portal frame is further provided with an anti-falling assembly for rapidly braking and locking the falling component within the limited distance, and the anti-falling assembly can lock rotation of the driving end of the Z-direction motor. According to the lifting portal frame structure, the mounting disc rotates along with rotation of the Z-direction motor driving shaft, when the rotating speed of the lifting portal frame structure reaches a certain speed, the clamping strips are affected by the centrifugal force effect of the mounting disc, so that the ends of the clamping strips extend out of the mounting disc and are clamped to the clamping hooks, and braking of rotation of the Z-direction motor driving shaft is achieved; and more reliable and efficient anti-falling protection can be provided in actual operation, so that the safe operation of hoisting operation is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of offshore petroleum engineering hoisting equipment, and in particular relates to a lifting gantry structure. Background Art

[0002] Gantry crane is a kind of deformation of bridge crane, also called gantry crane, which is mainly used for loading and unloading of outdoor cargo yard, material yard cargo and bulk cargo. With the development of society, gantry welding large component welding hanger is widely used in industrial production. Existing equipment is usually equipped with moving wheels for easy movement, but due to the large amplitude of the equipment during operation, the equipment moves, causing inconvenience in operation, which needs to be improved.

[0003] The existing patent (application number: CN201810346744.7) proposes an expandable gantry hanger, including a main beam, and a pair of columns are respectively arranged on both sides of the main beam, a main lifting device is arranged at the lower end of the main beam, and the driving shaft of the main lifting device is fixedly connected to the upper end of the column, a main support is arranged at the lower end of the column, and an auxiliary support is hingedly installed on the outer side of the main support, a connecting rod is hingedly installed between the auxiliary support and the column, and an auxiliary support reset device is arranged in the connecting rod. The present invention can extend the movable distance of the second movable seat by extending the auxiliary beam. The lower end of the column of the device can also increase the stability of the support through the auxiliary support, and during transportation, the auxiliary support can also be folded to save space. The device can also transport items to the outside of the device by using the second hook through the cooperation of the auxiliary guide rail drive motor and the third movable seat, thereby better meeting the needs of item transportation and avoiding the trouble of manual handling.

[0004] The existing gantry crane is not convenient for adjusting the angle of the component after hoisting, resulting in a certain deviation in the placement of the component, which requires manual adjustment, increasing labor costs, reducing work efficiency, and reducing enterprise efficiency. At the same time, the existing gantry crane often lacks an effective anti-fall mechanism, which may cause serious safety accidents during the hoisting process. Specifically, when the hoisting equipment fails, the operation is wrong, or the load exceeds the equipment's tolerance range, the hoisted object may accidentally fall, causing injury or damage to the workers and equipment below.

[0005] Therefore, it is urgent to design a lifting gantry structure to solve the above-mentioned problems. Summary of the invention

[0006] In order to solve the technical problem mentioned in the background technology that when the hoisting equipment fails, the operating error occurs or the load exceeds the equipment's bearing range, the hoisted object may accidentally fall, causing injury or damage to the workers and equipment below, a lifting gantry structure is provided to solve the problem of accidental falling of the hoisted object.

[0007] To achieve the above purpose, the specific technical solution of the lifting gantry structure of the present invention is as follows: A lifting gantry structure comprises two symmetrically arranged gantries, the gantry being provided with lifting hooks for lifting components, the gantry being provided with driving modules for driving the lifting hooks to move on the gantry along the X-axis, Z-axis and Y-axis directions, the gantry being provided with an anti-falling component for quickly braking and locking the falling components within a limited distance, and the anti-falling component can lock the rotation of the Z-axis motor driving end.

[0008] Furthermore, the anti-fall component includes a mounting plate installed on the driving module, on which a clamping strip is symmetrically mounted for rotation, a connecting plate is movably mounted between the two clamping strips, a rotating column is also rotatably mounted on the front of the mounting plate, a reset spring is connected to the rotating column, and the end of the reset spring away from the rotating column is connected to the side wall of one of the clamping strips, a transmission plate is coaxially mounted on the outside of the mounting plate, and a plurality of hooks are mounted on the inner wall of the transmission plate, and when the mounting plate rotates to a certain speed, the clamping strip rotates and engages with the hooks.

[0009] Furthermore, the driving module includes a Y-axis bearing beam symmetrically fixedly installed on the top surface of the gantry, a Y-axis track fixedly installed on the top surface of the Y-axis bearing beam, a Y-axis slide slidably installed on the Y-axis track, an X-axis bearing beam fixedly installed on the top surface of the Y-axis slide, a Y-axis driving shaft rotatably installed on the rear side wall of the X-axis bearing beam, Y-axis driving gears fixedly installed on both ends of the Y-axis driving shaft, a Y-axis rack meshingly connected with the Y-axis driving gear fixedly installed on the side wall of the Y-axis bearing beam, a Y-axis motor for driving the Y-axis driving shaft to rotate fixedly installed on the side wall of the X-axis bearing beam, an X-axis rack fixedly installed on the side of the X-axis bearing beam away from the Y-axis driving shaft, a mounting plate slidably installed on the X-axis bearing beam, an X-axis motor fixedly installed on the mounting plate, and an X-axis gear fixedly installed on the driving shaft of the X-axis motor.

[0010] Furthermore, an X-axis rack meshing with the X-axis gear is fixedly installed on the X-axis load-bearing beam, a lifting arm is slidably installed on the mounting plate, a lifting hook is fixedly installed on the bottom end of the lifting arm, a Z-axis motor is fixedly installed on the mounting plate, a Z-axis gear is fixedly installed on the driving shaft of the Z-axis motor, and a Z-axis rack meshing with the Z-axis gear is fixedly installed on the side wall of the lifting arm, so that the lifting arm drives the lifting hook to perform X-axis, Z-axis and Y-axis movements on the gantry.

[0011] Furthermore, the anti-fall component also includes a bracket fixedly mounted on the mounting plate, a sleeve fixedly mounted on the bracket, a transmission disk rotatably mounted inside the sleeve, a plurality of transmission shafts rotatably mounted on the sleeve, a transmission gear fixedly mounted on the front end of the transmission shaft, a transmission gear ring fixedly mounted on the outer wall of the transmission disk, the transmission gear ring meshingly connected with the transmission gear, a linkage gear fixedly mounted on the rear end of the transmission shaft, a sliding rack meshingly connected with the linkage gear slidably mounted on the back side of the sleeve, a brake seat fixedly mounted on the end of the sliding rack, and the plurality of brake seats can be fitted with the outer wall of the drive shaft of the Z-direction motor when closed axially toward the mounting disk to lock the rotation of the drive shaft of the Z-direction motor.

[0012] Furthermore, a permanent magnet sheet is fixedly mounted on the back of the transmission disc, and an annular electromagnet is fixedly mounted on the back of the sleeve. The outer peripheral wall of the permanent magnet sheet is in contact with the inner wall of the annular electromagnet. When the annular electromagnet is powered on, the permanent magnet sheet can be magnetically attracted to the annular electromagnet. A control switch that can control the power on and off of the annular electromagnet is provided on the inner wall of the hook. When the card strip is engaged with the card hook, the control switch is in a closed state.

[0013] Furthermore, a mounting frame is fixedly mounted on the outer wall of the sleeve, a sliding rack is slidably connected to the mounting frame, an end of the mounting frame away from the sleeve is a T-shaped structure, and a T-shaped sliding groove matching the T-shaped structure is provided on the sliding rack.

[0014] Furthermore, a torsion spring is sleeved on the transmission shaft, one end of the torsion spring is fixedly connected to a side wall of the linkage gear, and one end of the torsion spring away from the linkage gear is fixedly connected to the outer side wall of the sleeve.

[0015] Furthermore, a motor seat is fixedly installed on the side wall of the X-direction load-bearing beam, the Y-direction motor is fixedly connected to the X-direction load-bearing beam through the motor seat, and synchronous wheels are fixedly installed on the driving shaft of the Y-direction motor and the outer wall of the Y-direction driving shaft, and a synchronous belt is connected between the two synchronous wheels.

[0016] Furthermore, the mounting plate is fixedly mounted on the end of the driving shaft of the anti-fall assembly, and the axis of the mounting plate corresponds to the axis of the driving shaft of the Z-direction motor.

[0017] The lifting gantry structure of the present invention has the following advantages: 1. When the hoisting arm falls, the meshing of the Z-axis rack and the Z-axis gear will cause the drive shaft of the Z-axis motor to rotate at a high speed. At the same time, the mounting plate will rotate with the rotation of the drive shaft of the Z-axis motor. When its speed reaches a certain speed, the centrifugal force of the mounting plate will affect the clamping strip, so that its end can extend out of the mounting plate and be clamped on the clamping hook to achieve the braking of the rotation of the drive shaft of the Z-axis motor. It can provide more reliable and efficient anti-fall protection in actual operation to ensure the safety of the hoisting operation. 2. When the card strip is engaged with the card hook, the rotation of the mounting plate can drive the transmission plate to rotate, the transmission plate drives the transmission gear ring to rotate, the transmission gear ring drives the transmission gear meshing with it to rotate, the transmission gear drives the transmission shaft and the linkage gear to rotate synchronously, and the linkage gear drives the sliding rack to close to the center of the mounting plate, so that multiple brake seats brake the rotation of the drive shaft of the Z-axis motor, further improving the anti-fall effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the lifting gantry structure of the present invention; Figure 2 It is a rear view structural schematic diagram of the lifting gantry structure of the present invention; Figure 3 It is an isometric side view structural schematic diagram of the lifting gantry structure of the present invention; Figure 4 It is a structural schematic diagram of the lifting gantry structure driving module of the present invention; Figure 5 It is a schematic diagram of the connection structure between the anti-falling component of the lifting gantry structure and the Z-axis module of the present invention; Figure 6 It is a front view structural schematic diagram of the anti-falling assembly of the lifting gantry structure of the present invention; Figure 7 It is a rear view structural schematic diagram of the anti-falling assembly of the lifting gantry structure of the present invention; Figure 8 It is a front structural schematic diagram of the anti-falling assembly of the lifting gantry structure of the present invention.

[0019] Description of the markings in the figure: 1. Gantry; 2. Y-axis bearing beam; 3. Y-axis track; 4. Y-axis slide; 5. X-axis bearing beam; 6. Y-axis drive shaft; 7. Y-axis drive gear; 8. Y-axis rack; 9. Y-axis motor; 10. X-axis rack; 11. X-axis gear; 12. Mounting plate; 13. X-axis motor; 14. Lifting arm; 15. Lifting hook; 16. Z-axis motor; 17. Z-axis gear; 18. Z-axis rack; 19. Anti-fall assembly; 1901. Mounting plate; 1902. Card 1903, connecting plate; 1904, rotating column; 1905, reset spring; 1906, bracket; 1907, sleeve; 1908, transmission plate; 1909, hook; 1910, transmission shaft; 1911, transmission gear; 1912, transmission gear ring; 1913, linkage gear; 1914, mounting frame; 1915, sliding rack; 1916, brake seat; 1917, torsion spring; 1918, permanent magnet; 1919, ring electromagnet. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0021] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0022] Please refer to the attached Figure 1 To Attachment Figure 8 The lifting gantry structure of the present invention is described.

[0023] like Figures 1 to 3 As shown, the lifting gantry structure in the present invention includes two symmetrically arranged gantries 1, and the gantry 1 is provided with a lifting hook 15 for lifting components. The gantry 1 is also provided with a driving module for driving the lifting hook 15 to move along the X-axis, Z-axis and Y-axis directions on the gantry 1. The gantry 1 is also provided with an anti-falling component 19 for quickly braking and locking the falling component within a limited distance.

[0024] Further, if Figures 6 to 8 As shown, the anti-fall component 19 includes a mounting disk 1901 installed on the driving module, and a clamping strip 1902 is symmetrically mounted on the mounting disk 1901, and a connecting plate 1903 is movably mounted between the two clamping strips 1902. A rotating column 1904 is also rotatably mounted on the front of the mounting disk 1901, and a reset spring 1905 is connected to the rotating column 1904, and the other end of the reset spring 1905 is connected to the side wall of one of the clamping strips 1902. A transmission disk 1908 is coaxially mounted on the outside of the mounting disk 1901, and a plurality of hooks 1909 are mounted on the inner wall of the transmission disk 1908. When the mounting disk 1901 rotates to a certain speed, the clamping strip 1902 rotates and engages with the hooks 1909.

[0025] Preferably, the driving module includes a Y-axis load-bearing beam 2 symmetrically fixedly installed on the top surface of the gantry 1, a Y-axis track 3 is fixedly installed on the top surface of the Y-axis load-bearing beam 2, a Y-axis slide 4 is slidably installed on the Y-axis track 3, an X-axis load-bearing beam 5 is fixedly installed on the top surface of the Y-axis slide 4, a Y-axis drive shaft 6 is rotatably installed on the rear side wall of the X-axis load-bearing beam 5, both ends of the Y-axis drive shaft 6 are fixedly installed with a Y-axis drive gear 7, a Y-axis rack 8 meshingly connected with the Y-axis drive gear 7 is fixedly installed on the side wall of the Y-axis load-bearing beam 2, a Y-axis motor 9 for driving the Y-axis drive shaft 6 to rotate is fixedly installed on the side wall of the X-axis load-bearing beam 5, an X-axis rack 10 is fixedly installed on the side of the X-axis load-bearing beam 5 away from the Y-axis drive shaft 6, a mounting plate 12 is slidably installed on the X-axis load-bearing beam 5, an X-axis motor 13 is fixedly installed on the mounting plate 12, and an X-axis gear 11 is fixedly installed on the driving shaft of the X-axis motor 13.

[0026] An X-axis rack 10 meshing with an X-axis gear 11 is fixedly mounted on the X-axis load-bearing beam 5, a lifting arm 14 is slidably mounted on the mounting plate 12, a lifting hook 15 is fixedly mounted on the bottom end of the lifting arm 14, a Z-axis motor 16 is fixedly mounted on the mounting plate 12, a Z-axis gear 17 is fixedly mounted on the driving shaft of the Z-axis motor 16, a Z-axis rack 18 meshing with the Z-axis gear 17 is fixedly mounted on the side wall of the lifting arm 14, and the driving module can drive the lifting arm 14 to drive the lifting hook 15 to perform X-axis, Z-axis and Y-axis movements on the gantry 1.

[0027] The Y-direction drive shaft 6 can be driven to rotate by the Y-direction motor 9, and the Y-direction drive shaft 6 drives the Y-direction drive gear 7 at its end to rotate. During the rotation of the Y-direction drive gear 7, it will move along the Y-direction rack 8. During the movement of the Y-direction rack 8, it drives the X-direction load-bearing beam 5 and the Y-direction slide 4 to slide along the Y-direction track 3.

[0028] The X-axis motor 13 can drive the X-axis gear 11 to rotate, and during the rotation of the X-axis gear 11, it will move along the X-axis rack 10, so that the mounting plate 12 can slide on the X-axis load-bearing beam 5; the Z-axis motor 16 can drive the Z-axis gear 17 to rotate, and during the rotation of the Z-axis gear 17, it will drive the Z-axis rack 18 to move vertically, and the Z-axis rack 18 drives the lifting arm 14 and the lifting hook 15 to move synchronously, so that the lifting hook 15 can move in the X-axis, Z-axis and Y-axis directions, which solves the problem of being inconvenient to adjust the angle of the component after lifting, resulting in a certain deviation in the placement position of the component, requiring manual adjustment, increasing labor costs, reducing work efficiency, and reducing enterprise efficiency.

[0029] Preferably, when the lifting arm 14 falls, the engagement of the Z-axis rack 18 and the Z-axis gear 17 will cause the drive shaft of the Z-axis motor 16 to rotate at high speed. At the same time, the mounting plate 1901 rotates with the rotation of the drive shaft of the Z-axis motor 16. When its rotation speed reaches a certain speed, the clamping strip 1902 is affected by the centrifugal force of the mounting plate 1901, so that its end can extend out of the mounting plate 1901 and be clamped on the hook 1909, so as to brake the rotation of the drive shaft of the Z-axis motor 16, and can provide more reliable and efficient anti-fall protection in actual operation to ensure the safety of the lifting operation.

[0030] Further, if Figures 4 to 8 As shown, a motor seat is fixedly installed on the side wall of the X-direction load-bearing beam 5, and the Y-direction motor 9 is fixedly connected to the X-direction load-bearing beam 5 through the motor seat. Synchronous wheels are fixedly installed on the outer walls of the drive shaft of the Y-direction motor 9 and the Y-direction drive shaft 6, and a synchronous belt is connected between the two synchronous wheels. The motor seat is set to make the installation of the Y-direction motor 9 more stable.

[0031] The anti-fall component 19 can lock the rotation of the driving end of the Z-direction motor 16. The mounting plate 1901 is fixedly mounted on the end of the driving shaft of the anti-fall component 19, and the axis of the mounting plate 1901 corresponds to the axis of the driving shaft of the Z-direction motor 16.

[0032] The anti-fall component 19 also includes a bracket 1906 fixedly mounted on the mounting plate 12, a sleeve 1907 fixedly mounted on the bracket 1906, a transmission disk 1908 rotatably mounted inside the sleeve 1907, a plurality of transmission shafts 1910 rotatably mounted on the sleeve 1907, a transmission gear 1911 fixedly mounted on the front end of the transmission shaft 1910, a transmission gear ring 1912 fixedly mounted on the outer wall of the transmission disk 1908, the transmission gear ring 1912 is meshedly connected with the transmission gear 1911, a linkage gear 1913 is fixedly mounted on the rear end of the transmission shaft 1910, a sliding rack 1915 meshedly connected with the linkage gear 1913 is slidably mounted on the back side of the sleeve 1907, and a brake seat 1916 is fixedly mounted on the end of the sliding rack 1915.

[0033] When the multiple brake seats 1916 are closed axially toward the mounting disk 1901, they can fit against the outer wall of the driving shaft of the Z-axis motor 16 to lock the rotation of the driving shaft of the Z-axis motor 16. When the clamping strip 1902 is engaged with the hook 1909, the rotation of the mounting disk 1901 can drive the transmission disk 1908 to rotate.

[0034] The transmission disk 1908 drives the transmission gear ring 1912 to rotate, the transmission gear ring 1912 drives the transmission gear 1911 meshing therewith to rotate, the transmission gear 1911 drives the transmission shaft 1910 and the linkage gear 1913 to rotate synchronously, and the linkage gear 1913 drives the sliding rack 1915 to close to the center of the mounting disk 1901, so that the multiple brake seats 1916 brake the rotation of the drive shaft of the Z-axis motor 16, further improving the anti-fall effect.

[0035] Further, if Figures 7 and 8 As shown, a permanent magnet sheet 1918 is fixedly installed on the back of the transmission disk 1908, and an annular electromagnet 1919 is fixedly installed on the back of the sleeve 1907. The outer wall of the permanent magnet sheet 1918 fits with the inner wall of the annular electromagnet 1919. When the annular electromagnet 1919 is powered on, the permanent magnet sheet 1918 can be magnetically attracted to the annular electromagnet 1919. A control switch that can control the power on and off of the annular electromagnet 1919 is provided on the inner wall of the hook 1909. When the clamping strip 1902 is engaged with the clamping hook 1909, the control switch is in a closed state.

[0036] When the clamping strip 1902 is engaged with the hook 1909, the control switch is closed. After closing, the adsorption and fixation of the annular electromagnet 1919 on the permanent magnet 1918 is eliminated, so that the transmission disk 1908 can be rotatable. When the clamping strip 1902 is in the initial state, the control switch is turned on, and the annular electromagnet 1919 adsorbs and fixes the permanent magnet 1918, so that the transmission disk 1908 cannot rotate, thereby preventing the transmission disk 1908 from rotating.

[0037] A mounting frame 1914 is fixedly installed on the outer wall of the sleeve 1907, and a sliding rack 1915 is slidably connected to the mounting frame 1914. The end of the mounting frame 1914 away from the sleeve 1907 is a T-shaped structure, and a T-shaped groove matching the T-shaped structure is provided on the sliding rack 1915. The mounting frame 1914 can provide a supporting effect for the sliding rack 1915, thereby enabling the sliding rack 1915 to slide stably on the sleeve 1907.

[0038] Preferably, a torsion spring 1917 is sleeved on the transmission shaft 1910, one end of the torsion spring 1917 is fixedly connected to a side wall of the linkage gear 1913, and the other end of the torsion spring 1917 is fixedly connected to the outer wall of the sleeve 1907. When the transmission shaft 1910 drives the linkage gear 1913 to be in a rotating state, the torsion spring 1917 can store force and energy. When the mounting plate 1901 stops rotating, the transmission gear 1911 and the linkage gear 1913 can be driven to reset through the torsion spring 1917.

[0039] The working principle of the lifting gantry structure of this application is as follows: The Y-direction drive shaft 6 can be driven to rotate by the Y-direction motor 9, and the Y-direction drive shaft 6 drives the Y-direction drive gear 7 at its end to rotate. During the rotation of the Y-direction drive gear 7, the Y-direction drive gear 7 moves along the Y-direction rack 8, and during the movement of the Y-direction rack 8, the X-direction load beam 5 and the Y-direction slide 4 are driven to slide along the Y-direction track 3; The X-axis motor 13 can drive the X-axis gear 11 to rotate, and during the rotation of the X-axis gear 11, it will move along the X-axis rack 10, so that the mounting plate 12 can slide on the X-axis load-bearing beam 5; the Z-axis motor 16 can drive the Z-axis gear 17 to rotate, and during the rotation of the Z-axis gear 17, it will drive the Z-axis rack 18 to move vertically, and the Z-axis rack 18 drives the lifting arm 14 and the lifting hook 15 to move synchronously, so that the lifting hook 15 can move in the X-axis, Z-axis and Y-axis directions, which solves the problem of being inconvenient to adjust the angle of the component after lifting, resulting in a certain deviation in the placement position of the component, requiring manual adjustment, increasing labor costs, reducing work efficiency, and reducing enterprise efficiency.

[0040] When the lifting arm 14 falls, the engagement of the Z-axis rack 18 and the Z-axis gear 17 will cause the driving shaft of the Z-axis motor 16 to rotate at high speed. At the same time, the mounting plate 1901 rotates with the rotation of the driving shaft of the Z-axis motor 16. When its rotation speed reaches a certain speed, the clamping strip 1902 is affected by the centrifugal force of the mounting plate 1901, so that its end can extend out of the mounting plate 1901 and be clamped on the hook 1909, so as to brake the rotation of the driving shaft of the Z-axis motor 16, and can provide more reliable and efficient anti-fall protection in actual operation to ensure the safety of the lifting operation.

[0041] When the clamping strip 1902 is engaged with the clamping hook 1909, the rotation of the mounting disk 1901 can drive the transmission disk 1908 to rotate, the transmission disk 1908 drives the transmission gear ring 1912 to rotate, the transmission gear ring 1912 drives the transmission gear 1911 meshing therewith to rotate, the transmission gear 1911 drives the transmission shaft 1910 and the linkage gear 1913 to rotate synchronously, the linkage gear 1913 drives the sliding rack 1915 to close to the center of the mounting disk 1901, so that the multiple brake seats 1916 brake the rotation of the drive shaft of the Z-axis motor 16, further improving the anti-fall effect.

[0042] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A lifting gantry structure, comprising two symmetrically arranged gantries (1), characterized in that: The gantry (1) is provided with a lifting hook (15) for lifting a component, the gantry (1) is also provided with a driving module for driving the lifting hook (15) to move on the gantry (1) along the X-axis, Z-axis and Y-axis directions, and the gantry (1) is also provided with an anti-falling component (19) for quickly braking and locking a falling component within a limited distance, and the anti-falling component (19) can lock the rotation of the driving end of the Z-axis motor (16).

2. The lifting gantry structure according to claim 1, characterized in that: The anti-fall component (19) comprises a mounting plate (1901) mounted on the driving module, a clamping strip (1902) being symmetrically mounted on the mounting plate (1901), a connecting plate (1903) being movably mounted between the two clamping strips (1902), a rotating column (1904) being rotatably mounted on the front of the mounting plate (1901), a return spring (1905) being connected to the rotating column (1904), an end of the return spring (1905) being away from the rotating column (1904) being connected to the side wall of one of the clamping strips (1902), a transmission plate (1908) being coaxially mounted on the outside of the mounting plate (1901), a plurality of hooks (1909) being mounted on the inner wall of the transmission plate (1908), and when the mounting plate (1901) rotates to a certain speed, the clamping strip (1902) rotates and is mutually engaged with the hooks (1909).

3. The lifting gantry structure according to claim 1, characterized in that: The driving module comprises a Y-direction bearing beam (2) symmetrically fixedly mounted on the top surface of the gantry (1); a Y-direction track (3) is fixedly mounted on the top surface of the Y-direction bearing beam (2); a Y-direction slide seat (4) is slidably mounted on the Y-direction track (3); an X-direction bearing beam (5) is fixedly mounted on the top surface of the Y-direction slide seat (4); a Y-direction driving shaft (6) is rotatably mounted on the rear side wall of the X-direction bearing beam (5); both ends of the Y-direction driving shaft (6) are fixedly mounted with a Y-direction driving gear (7); and a Y-direction driving gear (8) is fixedly mounted on the side wall of the Y-direction bearing beam (2). A Y-axis rack (8) is provided which is meshed with a Y-axis driving gear (7); a Y-axis motor (9) for driving the Y-axis driving shaft (6) to rotate is fixedly mounted on the side wall of the X-axis bearing beam (5); an X-axis rack (10) is fixedly mounted on the side of the X-axis bearing beam (5) away from the Y-axis driving shaft (6); a mounting plate (12) is slidably mounted on the X-axis bearing beam (5); an X-axis motor (13) is fixedly mounted on the mounting plate (12); and an X-axis gear (11) is fixedly mounted on the driving shaft of the X-axis motor (13).

4. The lifting gantry structure according to claim 3, characterized in that: An X-axis rack (10) meshingly connected to an X-axis gear (11) is fixedly mounted on the X-axis bearing beam (5), a lifting arm (14) is slidably mounted on the mounting plate (12), a lifting hook (15) is fixedly mounted on the bottom end of the lifting arm (14), a Z-axis motor (16) is fixedly mounted on the mounting plate (12), a Z-axis gear (17) is fixedly mounted on the driving shaft of the Z-axis motor (16), and a Z-axis rack (18) meshingly connected to the Z-axis gear (17) is fixedly mounted on the side wall of the lifting arm (14), so that the lifting arm (14) drives the lifting hook (15) to move in the X-axis, Z-axis and Y-axis directions on the gantry (1).

5. The lifting gantry structure according to claim 2, characterized in that: The anti-falling assembly (19) further comprises a bracket (1906) fixedly mounted on the mounting plate (12), a sleeve (1907) fixedly mounted on the bracket (1906), a transmission disc (1908) rotatably mounted inside the sleeve (1907), a plurality of transmission shafts (1910) rotatably mounted on the sleeve (1907), a transmission gear (1911) fixedly mounted on the front end of the transmission shaft (1910), a transmission gear ring (1912) fixedly mounted on the outer wall of the transmission disc (1908), and the transmission gear ring (1912) and the transmission gear ring (1912) are connected to the transmission gear ring. The gear (1911) is meshed and connected, a linkage gear (1913) is fixedly installed on the rear end of the transmission shaft (1910), a sliding rack (1915) meshed and connected with the linkage gear (1913) is slidably installed on the back of the sleeve (1907), and a brake seat (1916) is fixedly installed on the end of the sliding rack (1915). When the multiple brake seats (1916) are closed axially toward the installation plate (1901), they can fit with the outer wall of the drive shaft of the Z-direction motor (16) to lock the rotation of the drive shaft of the Z-direction motor (16).

6. The lifting gantry structure according to claim 5, characterized in that: A permanent magnet sheet (1918) is fixedly mounted on the back of the transmission disc (1908), and an annular electromagnet (1919) is fixedly mounted on the back of the sleeve (1907). The outer peripheral wall of the permanent magnet sheet (1918) fits with the inner wall of the annular electromagnet (1919). When the annular electromagnet (1919) is powered on, the permanent magnet sheet (1918) can be magnetically attracted to the annular electromagnet (1919). A control switch capable of controlling the power on and off of the annular electromagnet (1919) is arranged on the inner wall of the hook (1909). When the clip strip (1902) is engaged with the hook (1909), the control switch is in a closed state.

7. The lifting gantry structure according to claim 6, characterized in that: A mounting frame (1914) is fixedly mounted on the outer wall of the sleeve (1907), and a sliding rack (1915) is slidably connected to the mounting frame (1914). An end of the mounting frame (1914) away from the sleeve (1907) is a T-shaped structure, and a T-shaped sliding groove matching the T-shaped structure is provided on the sliding rack (1915).

8. The lifting gantry structure according to claim 7, characterized in that: A torsion spring (1917) is sleeved on the transmission shaft (1910), one end of the torsion spring (1917) is fixedly connected to a side wall of the linkage gear (1913), and one end of the torsion spring (1917) away from the linkage gear (1913) is fixedly connected to the outer side wall of the sleeve (1907).

9. The lifting gantry structure according to claim 4, characterized in that: A motor seat is fixedly mounted on the side wall of the X-direction bearing beam (5), the Y-direction motor (9) is fixedly connected to the X-direction bearing beam (5) via the motor seat, and synchronous wheels are fixedly mounted on the outer walls of the drive shaft of the Y-direction motor (9) and the Y-direction drive shaft (6), and a synchronous belt is connected between the two synchronous wheels.

10. The lifting gantry structure according to claim 1, characterized in that: The mounting plate (1901) is fixedly mounted on the end of the drive shaft of the anti-fall assembly (19), and the axis of the mounting plate (1901) corresponds to the axis of the drive shaft of the Z-direction motor (16).

Images