A hoisting device for a saucer-shaped casting

Abstract

This invention discloses a hoisting device for a saucer-shaped casting, including a hoisting base. A sliding groove is formed on the side wall of the hoisting base, and a double-threaded rod is rotatably connected within the groove. Adjusting nuts are threaded onto both threaded sections of the double-threaded rod. Each adjusting nut is fixedly connected to a hoisting frame via a connecting rod. The hoisting frame consists of a lower support, an arc-shaped rod, and an upper support, all fixedly connected. The upper and lower supports are fixedly connected to the two ends of the arc-shaped rod. A rotating mechanism for rotating the double-threaded rod is installed within the sliding groove. Multiple first and second liquid storage cylinders are fixedly connected to the lower end of the hoisting base. This invention, by setting up a hoisting device composed of a hoisting base, lower support, arc-shaped rod, and upper support, can quickly and stably support the lower and side edges of a saucer-shaped casting. Locking is achieved simply by turning the adjusting wheel. This allows for the transfer of saucer-shaped castings between different workstations, and is simple, convenient, safe, and efficient in operation.

Description

Technical Field

[0001] This invention relates to the field of casting hoisting technology, and in particular to a hoisting device for a saucer-shaped casting. Background Technology

[0002] During casting production, castings need to be transported to different workstations by crane for processing. Since most castings can be easily secured with chains due to their structural characteristics, it is difficult to secure ring-shaped castings, as they are prone to slipping when secured. Generally, the following two methods are used: 1. Manually bind the ring with chains along its outer contour; 2. Weld an iron rod to the edge of the ring as a lifting lug, and then cut and grind the iron rod before warehousing and shipping.

[0003] The two methods described above have the following drawbacks in practical application: First, the method of manually binding chains at the ring outline. Generally, the chain is wound into a figure-eight shape and then placed on the outer outline. This relies entirely on the operator's experience and care in manual binding. Winding the chain is tedious, increases operation time, and is also prone to slippage, causing safety accidents. Second, the method of welding an iron rod to the edge of the ring as a lifting lug, and then cutting and grinding it off before warehousing and shipping. This easily causes stress cracks at the weld points, creating new quality problems, increasing production costs, generating additional labor, and increasing labor intensity. Therefore, this application proposes a lifting device for saucer-shaped castings. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hoisting device for saucer-shaped castings.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hoisting device for a saucer-shaped casting includes a hoisting base. A groove is formed on the side wall of the hoisting base, and a double-threaded rod is rotatably connected within the groove. Adjusting nuts are threaded onto both threaded sections of the double-threaded rod. Each adjusting nut is fixedly connected to a hoisting frame via a connecting rod. The hoisting frame consists of a lower support, an arc-shaped rod, and an upper support, all fixedly connected. The upper and lower supports are fixedly connected to both ends of the arc-shaped rod. A rotating mechanism for rotating the double-threaded rod is installed within the groove. Multiple first and second liquid storage cylinders are fixedly connected to the lower end of the hoisting base. Each of the first and second liquid storage cylinders contains a counterweight liquid. Each first liquid storage cylinder communicates with a second liquid storage cylinder on the opposite side via a liquid guide pipe. A flow mechanism for flowing the counterweight liquid is installed within each first liquid storage cylinder.

[0007] Preferably, the rotating mechanism includes a first gear and a second gear rotatably connected in a slide groove, and the first gear and the second gear mesh with each other, wherein the first gear is fixedly connected to a double-threaded rod, a drive rod is fixedly connected at the axial position of the second gear, and an adjusting wheel is fixedly connected at the end of the drive rod away from the second gear.

[0008] Preferably, the side wall of the hoisting base is provided with multiple mechanism slots, the flow mechanism includes a piston that is slidably connected in a sealed manner in the first liquid storage tank, a lifting screw is rotatably connected in the mechanism slot, a lifting nut is threaded on the lifting screw, and the lifting nut is fixedly connected to the piston through a lifting rod, and a drive mechanism for driving the lifting screw to rotate is installed in the mechanism slot.

[0009] Preferably, the driving mechanism includes a third gear rotatably connected in the mechanism slot, a rack slidably connected to the inner wall of the mechanism slot, and the rack meshing with the third gear, and a moving mechanism for moving the rack is installed in the mechanism slot.

[0010] Preferably, the moving mechanism includes a slide rod fixedly connected to the inner wall of the mechanism slot, and a counterweight is slidably connected through the slide rod. The counterweight is connected to the inner wall of the mechanism slot by a spring.

[0011] Preferably, both the first and second liquid storage cylinders have air holes on their side walls, and the air holes are located at the top inner part of the first and second liquid storage cylinders.

[0012] Preferably, the first liquid storage cylinder and the second liquid storage cylinder are symmetrically arranged along the axis of the lifting base.

[0013] Preferably, a lifting ring is fixedly connected to the end of the upper support away from the arc-shaped rod.

[0014] The present invention has the following beneficial effects:

[0015] 1. By setting up a hoisting device consisting of a hoisting base, a lower support, an arc-shaped rod, and an upper support, the lower side and both sides of the saucer-shaped casting can be quickly and stably supported. The locking can be completed by simply turning the adjusting wheel. The saucer-shaped casting can be transferred between various workstations. The operation is simple, convenient, safe, and efficient.

[0016] 2. By setting up a first liquid storage tank and a second liquid storage tank, and by using a flow mechanism to force the counterweight liquid to flow between the first liquid storage tank and the second liquid storage tank, the counterweight liquid can be forced to flow to the other side when the saucer-shaped casting tilts to one side during the hoisting process. This allows the center of gravity of the entire device to be changed in real time during the hoisting process, so that the saucer-shaped casting can remain stable and horizontal during the hoisting process and avoid falling.

[0017] 3. By setting up components such as double-ended threaded rods and adjusting nuts, the double-ended threaded rods can be rotated through a rotating mechanism, which in turn rotates the adjusting nuts. This allows for adjustment of the distance between the two lifting frames, which can meet the needs of different specifications of saucer-shaped castings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a hoisting device for lifting saucer-shaped castings according to the present invention.

[0019] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0020] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure at point BB;

[0021] Figure 4 A bottom view of the structure of the first liquid storage cylinder, the second liquid storage cylinder, and the lifting base in this invention.

[0022] In the diagram: 1. Lifting base, 2. Flying saucer-shaped casting, 3. Slide groove, 4. Double-ended threaded rod, 5. Adjusting nut, 6. Lifting frame, 601. Lower support, 602. Arc rod, 603. Upper support, 7. Connecting rod, 8. Adjusting wheel, 9. Drive rod, 10. Lifting ring, 11. First liquid storage cylinder, 12. Second liquid storage cylinder, 13. Guide pipe, 14. Piston, 15. Lifting rod, 16. Air hole, 17. Mechanism groove, 18. First gear, 19. Second gear, 20. Slide rod, 21. Counterweight, 22. Spring, 23. Rack, 24. Third gear, 25. Lifting screw, 26. Lifting nut. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] Reference Figure 1-4 A hoisting device for a saucer-shaped casting includes a hoisting base 1. A groove 3 is formed on the side wall of the hoisting base 1. A double-threaded rod 4 is rotatably connected within the groove 3. Adjusting nuts 5 are threaded onto both threaded sections of the double-threaded rod 4. Each adjusting nut 5 is fixedly connected to a hoisting frame 6 via a connecting rod 7. The hoisting frame 6 is composed of a lower support 601, an arc-shaped rod 602, and an upper support 603, all fixedly connected. A lifting ring 10 is fixedly connected to the end of the upper support 603 away from the arc-shaped rod 602. During hoisting, a wire rope can be passed through the lifting rings 10 on both sides, and the hoisting operation can be achieved using a crane hook.

[0025] The upper support 603 and the lower support 601 are fixedly connected to the two ends of the arc-shaped rod 602. A rotating mechanism that makes the double-headed threaded rod 4 rotate is installed in the sliding groove 3. Multiple first liquid storage cylinders 11 and multiple second liquid storage cylinders 12 are fixedly connected to the lower end of the lifting base 1. Each of the first liquid storage cylinders 11 and multiple second liquid storage cylinders 12 is filled with counterweight liquid. Specifically, the counterweight liquid can be water. Each first liquid storage cylinder 11 is connected to the second liquid storage cylinder 12 on the opposite side through a liquid guide pipe 13. A flow mechanism that makes the counterweight liquid flow is installed in the first liquid storage cylinder 11.

[0026] Both the first liquid storage cylinder 11 and the second liquid storage cylinder 12 have air holes 16 on their side walls, and the air holes 16 are located at the inner top of the first liquid storage cylinder 11 and the second liquid storage cylinder 12. By setting the air holes 16 at the inner top of the first liquid storage cylinder 11 and the second liquid storage cylinder 12, the counterweight liquid will not be hindered by air pressure when flowing along the liquid guide pipe 13 between the first liquid storage cylinder 11 and the second liquid storage cylinder 12.

[0027] Reference Figure 3 The first liquid storage cylinder 11 and the second liquid storage cylinder 12 are symmetrically arranged along the axis of the lifting base 1. It should be noted that when the entire device is tilted to one side, the counterweight liquid in the first liquid storage cylinder 11 and the second liquid storage cylinder 12 can flow in the opposite direction to the tilt, thereby changing the center of gravity of the entire device so that the entire device can quickly return to a horizontal and stable state.

[0028] Reference Figure 1 and Figure 2 The rotating mechanism includes a first gear 18 and a second gear 19 rotatably connected within the slide groove 3, with the first gear 18 and the second gear 19 meshing with each other. The first gear 18 is fixedly connected to a double-threaded rod 4, and a drive rod 9 is fixedly connected to the axis of the second gear 19. An adjusting wheel 8 is fixedly connected to the end of the drive rod 9 furthest from the second gear 19. It should be noted that by rotating the drive rod 9 and the second gear 19 via the adjusting wheel 8, the first gear 18 and the double-threaded rod 4 can be rotated, and the distance between the two adjusting nuts 5 and the lifting frame 6 can be adjusted to fix saucer-shaped castings 2 of different sizes and specifications.

[0029] Reference Figure 2The side wall of the hoisting base 1 has multiple mechanism slots 17. The flow mechanism includes a piston 14 that is slidably connected in a sealed manner within the first liquid storage cylinder 11. A lifting screw 25 is rotatably connected within the mechanism slot 17, and a lifting nut 26 is threaded onto the lifting screw 25. The lifting nut 26 is fixedly connected to the piston 14 via a lifting rod 15. A drive mechanism for driving the lifting screw 25 to rotate is installed within the mechanism slot 17. It should be noted that by driving the lifting screw 25 to rotate, the lifting nut 26 can move up and down, which in turn drives the piston 14 to move via the lifting rod 15. Thus, the counterweight liquid can be drawn or pushed by the piston 14 to flow between the first liquid storage cylinder 11 and the second liquid storage cylinder 12.

[0030] Reference Figure 2 The driving mechanism includes a third gear 24 rotatably connected within the mechanism slot 17. A rack 23 is slidably connected to the inner wall of the mechanism slot 17, and the rack 23 meshes with the third gear 24. A moving mechanism for moving the rack 23 is installed within the mechanism slot 17. The moving mechanism includes a slide rod 20 fixedly connected to the inner wall of the mechanism slot 17. A counterweight 21 is slidably connected through the slide rod 20, and the counterweight 21 is connected to the inner wall of the mechanism slot 17 by a spring 22. It should be noted that by setting up the moving mechanism composed of the counterweight 21, the spring 22, and the slide rod 20, the counterweight 21 can sense the tilt direction of the entire device and move in the tilt direction. In this way, the rack 23 and the third gear 24 can drive the lifting screw 25 to rotate.

[0031] When using this device, first rotate the adjusting wheel 8 in the opposite direction to drive the drive rod 9 to rotate, which will drive the second gear 19 to rotate, and then drive the first gear 18 to rotate. This will cause the double-headed threaded rod 4 to rotate, and make the adjusting nuts 5 of the chain move away from each other by a certain distance. The adjusting nuts 5 can also push the two lifting frames 6 on both sides away from each other through the connecting rod 7, which will increase the distance between the two lifting frames 6, making it easier for the saucer-shaped casting 2 to fall onto the lifting base 1.

[0032] During hoisting operations, rotating the adjusting wheel 8 in the forward direction will cause the aforementioned components to rotate in the reverse direction. This will allow the hoisting frames 6 on both sides to move towards each other and lock the two sides of the saucer-shaped casting 2. This will quickly and effectively fix the saucer-shaped casting 2 stably above the hoisting base 1, facilitating hoisting operations. Compared to the two hoisting methods described in the background art of this application, this application only requires turning the adjusting wheel 8 to complete the locking, enabling the transfer of the saucer-shaped casting 2 between various workstations. The operation is simple, convenient, safe, and efficient.

[0033] Furthermore, what is even more noteworthy is that during the hoisting process, if the entire device tilts due to factors such as instantaneous acceleration upon startup or instantaneous stopping upon reaching the target position, the hoisting base 1 will also tilt synchronously. The counterweight liquid in the first liquid storage cylinder 11 and the second liquid storage cylinder 12 will flow in opposite directions of tilting, thereby changing the center of gravity of the entire device and enabling the entire device to quickly return to a stable horizontal state, thus preventing the saucer-shaped casting 2 from falling due to excessive tilting.

[0034] Specifically, with Figure 1 For example, when the hoisting base 1 tilts to the right (i.e., the left side rises and the right side falls), the counterweight block 21 in the mechanism slot 17 will also slide to the right, driving the rack 23 to move to the right. This allows the third gear 24 to rotate in the forward direction, driving the lifting screw 25 to rotate in the forward direction, thereby causing the lifting nut 26 to move upward. At this time, the lifting nut 26 can pull the piston 14 upward through the lifting rod 15, thus drawing the counterweight liquid in the second liquid storage cylinder 12 on the right side into the first liquid storage cylinder 11 on the left side along the liquid guide pipe 13. This forces the center of gravity of the entire device to shift to the left, thereby quickly restoring the entire device to a horizontal and stable state. This prevents the saucer-shaped casting 2 from falling due to excessive tilt angle or excessive tilt time during hoisting, effectively ensuring the safety of the device during the hoisting process. After landing, once the hoisting base 1 rests on the horizontal ground, the spring 22 can pull or push the counterweight block 21 to return to its original position, thereby driving the rack 23 to return to its original position. Under the action of the third gear 24, the lifting screw 25, the lifting nut 26, and the lifting rod 15, the piston 14 returns to its original position, and at the same time, the excess counterweight liquid drawn from the first liquid storage cylinder 11 is squeezed back into the second liquid storage cylinder 12 along the liquid guide pipe 13.

[0035] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A flying saucer-shaped casting hoisting device comprising a hoisting seat (1), characterized in that, The side wall of the hoisting seat (1) is provided with a sliding groove (3), a double-end threaded rod (4) is rotatably connected in the sliding groove (3), adjusting nuts (5) are threadedly connected on the two threaded sections of the double-end threaded rod (4), each adjusting nut (5) is fixedly connected with a hoisting frame (6) through a connecting rod (7), and the hoisting frame (6) is fixedly connected and composed of a lower support (601), an arc-shaped rod (602) and an upper support (603), wherein the upper support (603) and the lower support (601) are fixedly connected at the two ends of the arc-shaped rod (602), a rotating mechanism for rotating the double-end threaded rod (4) is installed in the sliding groove (3), a plurality of first liquid storage cylinders (11) and a plurality of second liquid storage cylinders (12) are fixedly connected to the lower end of the hoisting seat (1), wherein the first liquid storage cylinders (11) and the second liquid storage cylinders (12) are provided with counterweight liquid, each first liquid storage cylinder (11) is communicated with the second liquid storage cylinder (12) on the opposite side through a liquid guide pipe (13), and a flowing mechanism for flowing the counterweight liquid is installed in the first liquid storage cylinder (11); A plurality of mechanism grooves (17) are formed in the side wall of the hoisting seat (1), the flowing mechanism comprises a piston (14) sealingly and slidingly connected in the first liquid storage cylinder (11), a lifting screw (25) is rotatably connected in the mechanism groove (17), a lifting nut (26) is threadedly connected on the lifting screw (25), the lifting nut (26) is fixedly connected with the piston (14) through a lifting rod (15), and a driving mechanism for driving the lifting screw (25) to rotate is installed in the mechanism groove (17); the driving mechanism comprises a third gear (24) rotatably connected in the mechanism groove (17), a rack (23) is slidingly connected on the inner wall of the mechanism groove (17), the rack (23) is engaged with the third gear (24), and a moving mechanism for moving the rack (23) is installed in the mechanism groove (17); the moving mechanism comprises a sliding rod (20) fixedly connected to the inner wall of the mechanism groove (17), a counterweight block (21) is slidingly connected on the sliding rod (20), and the counterweight block (21) is connected to the inner wall of the mechanism groove (17) through a spring (22); air holes (16) are formed in the side walls of the first liquid storage cylinders (11) and the second liquid storage cylinders (12), and the air holes (16) are arranged at the inner top portions of the first liquid storage cylinders (11) and the second liquid storage cylinders (12); the first liquid storage cylinders (11) and the second liquid storage cylinders (12) are symmetrically arranged along the axis of the hoisting seat (1). The moving mechanism composed of the counterweight (21), the spring (22) and the sliding rod (20) can sense the tilting direction of the whole device through the counterweight (21) and move in the tilting direction, so that the rack (23) and the third gear (24) can drive the lifting screw (25) to rotate; the lifting screw (25) is driven to rotate, so that the lifting nut (26) can move up and down, and the piston (14) is driven to move through the lifting rod (15), so that the piston (14) can draw or push the counterweight liquid to flow between the first liquid storage cylinder (11) and the second liquid storage cylinder (12); when the whole device tilts to one side, the counterweight liquid in the first liquid storage cylinder (11) and the second liquid storage cylinder (12) can flow in the opposite direction of the tilting direction, so as to change the center of gravity of the whole device, so that the whole device can quickly restore to a horizontal stable state.

2. A flying saucer shaped casting lifting device according to claim 1, characterized in that The rotating mechanism comprises a first gear (18) and a second gear (19) rotatably connected in the sliding groove (3), and the first gear (18) and the second gear (19) are meshed with each other, wherein the first gear (18) is fixedly connected with the double-headed threaded rod (4), and the second gear (19) is fixedly connected with a driving rod (9) at the position of the shaft center of the second gear (19), and the driving rod (9) is fixedly connected with an adjusting wheel (8) at the end away from the second gear (19).

3. The flying saucer shaped casting lifting device according to claim 1, wherein The upper support (603) is fixedly connected with a lifting ring (10) at the end away from the arc-shaped rod (602).

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