Hoisting device capable of automatically adjusting balance

Abstract

The invention relates to a hoisting device capable of automatically adjusting balance, and belongs to the field of hoisting devices, the hoisting device comprises first steel wire ropes, second steel wire ropes are connected below the first steel wire ropes, first connecting plates are connected to the tail ends of the second steel wire ropes, and supporting plates are fixedly connected between every two adjacent first connecting plates; a first supporting assembly and a second supporting assembly are slidably mounted on the left side and the right side of the supporting plate correspondingly, a first electric push rod is mounted between the first supporting assembly and the second supporting assembly, and third steel wire ropes are arranged below the first supporting assembly and the second supporting assembly correspondingly. A first lifting ring is connected to the bottom of the third steel wire rope, a first lifting lug is connected to the lower portion of the first lifting ring, and a main frame is arranged below the first lifting lug. The lifting device solves the problems that an existing lifting device does not have the balance adjusting function, and the balance weight on the other side of the lifting device cannot be progressively increased when goods incline towards one side of the lifting device.

Description

Technical Field

[0001] The invention relates to a hoisting device with automatic balance adjustment, belonging to the field of hoisting devices. Background Art

[0002] A lifting device is a mechanical device used to lift and move heavy objects. It is often used in places such as ports. The lifting device makes the movement of heavy objects easier, reduces manpower requirements, and improves work efficiency and safety. However, the existing lifting device still has some shortcomings.

[0003] The invention patent with the publication number CN115215194A discloses a blade root storage and hoisting device and its assembly method, including: a blade root base, with four type-4 sling rollers at the bottom, and type-3 sling rollers, type-2 sling rollers, and type-1 sling rollers arranged above the type-4 sling rollers in sequence; blade root lifting ears and load distribution chutes are arranged on both sides of the blade root base; a load distribution mechanism is rotatably connected to both sides of the blade root base and slidably connected to the load distribution chutes, and type-3 sling rollers are arranged on the load distribution mechanism; two annular flexible slings are wound from the lower side of the type-4 sling rollers, then wound down from the upper side of the type-1 sling rollers, then wound up from the lower side of the type-3 sling rollers, and finally wound down from the upper side of the type-2 sling rollers. The device only requires one set of devices for the transportation, storage and hoisting of blades; it automatically balances the bearing capacity of the two annular flexible slings; it can provide support force without affecting the rotation of the blade root during posture adjustment, and it is convenient to detach from the blade after the operation is completed. Although the above device can realize the function of conveniently disengaging the blades, it does not have the function of balancing and adjusting when in use, and cannot progressively increase the counterweight on the other side of the lifting device when the cargo tilts toward one side of the lifting device. The stability is poor, and the existing lifting device cannot change the retraction and extension of the winch in multiple positions by a single driving device when in use.

[0004] Therefore, we have made improvements to this problem and proposed a lifting device with balanced automatic adjustment. Summary of the invention

[0005] (I) The technical problem to be solved by the present invention is that the existing lifting device does not have the function of balancing and adjusting, and cannot progressively increase the counterweight on the other side of the lifting device when the cargo tilts toward one side of the lifting device.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned invention object, the present invention provides a lifting device with automatic balance adjustment, comprising a first steel wire rope, a second steel wire rope is connected to the lower part of the first steel wire rope, a first connecting plate is connected to the end of the second steel wire rope, a support plate is fixedly connected between two adjacent groups of first connecting plates, a first support assembly and a second support assembly are slidably installed on the left and right sides of the support plate, a first electric push rod is installed between the first support assembly and the second support assembly, a third steel wire rope is arranged below the first support assembly and the second support assembly, a first lifting ring is connected to the bottom of the third steel wire rope, a first lifting ear is connected to the lower part of the first lifting ear, a main frame is arranged below the first lifting ear, a balancing assembly is installed between the first lifting ear and the main frame, a fourth steel wire rope is connected to the four sides below the lower part of the main frame, a second lifting ring is connected to the bottom of the fourth steel wire rope, a hydraulic cylinder is installed below the second lifting ring, a third lifting ring is connected to the bottom of the hydraulic cylinder, and a heavy object is arranged below the third lifting ring;

[0008] The first electric push rod is connected to a fixing frame, a first buffer assembly is installed on the rear side of the fixing frame, a first adjustment assembly is installed on the first buffer assembly, a second buffer assembly is installed on the front side of the fixing frame, a second adjustment assembly is installed on the second buffer assembly, and drive assemblies are installed below the first support assembly and the second support assembly, and the drive assembly is sequentially installed with a first winding assembly, a second winding assembly and a telescopic assembly from front to back.

[0009] Among them, the first supporting assembly includes a second slide plate slidably mounted on the supporting plate, the first slide plate is fixedly connected to the lower part of the second slide plate, a connecting frame is fixedly connected to the first slide plate, a sliding groove for the second slide plate to move is provided on the supporting plate, and the first supporting assembly and the second supporting assembly are connected to the supporting plate in the same manner.

[0010] Among them, the first buffer assembly includes a side plate fixedly connected to the rear side of the fixing frame, the side plate is fixedly connected to a first fixing block, a pressure sensor is installed on the first fixing block, a first spring is abutted on the pressure sensor, a slip ring is fixedly connected to the first spring, a connecting rod is provided through the slip ring, a second spring is fixedly connected to the slip ring, and a fixing rod is welded on the top of the slip ring.

[0011] Among them, the first adjustment component includes a second fixed block fixedly connected to the support plate, the second fixed block is fixedly connected to the second electric push rod, an outer bushing is installed on the outer side of the second electric push rod, a telescopic incremental button is installed on the second electric push rod, the outer bushing is fixedly connected to the fixed rod and the connecting rod, and a pressure plate is fixedly connected to the side of the outer bushing close to the telescopic incremental button.

[0012] Among them, the connection method between the first buffer component and the first adjustment component is the same as the connection method between the second buffer component and the second adjustment component but in opposite directions, the connection methods between the first buffer component, the first adjustment component, the second buffer component and the second adjustment component and the first connecting plate, the support plate and the fixing frame are all the same, the slip ring, the fixing rod, the outer bushing and the pressure plate are a whole, the telescopic incremental buttons are evenly spaced on the second electric push rod, and the outer bushing and the second electric push rod are slidingly connected.

[0013] Among them, the driving assembly includes a base plate fixedly connected to the first slide plate and the bottom of the second supporting assembly, the front end of the base plate is fixedly connected to an extension plate, a motor is fixedly installed below the extension plate, a first key rod is connected to the output shaft of the motor, the outer key of the first key rod is connected to the second key rod, a first fixing ring is fixedly connected to the bottom of the base plate, a first fixing plate is fixedly provided on the side of the first fixing ring, a second fixing ring is provided on the rear side of the first fixing ring, and a second fixing plate is fixedly connected to the side of the second fixing ring.

[0014] The bottom plate, the extension plate, the first fixing ring, the first fixing plate, the second fixing ring and the second fixing plate are integrated into one body, and a retaining ring is fixedly connected to the second key rod.

[0015] Among them, the telescopic assembly includes a first convex plate and a second convex plate fixedly connected to the front and rear sides of the second key rod, the first convex plate and the second convex plate are evenly distributed along the circumference of the second key rod, the rear side of the base plate is fixedly connected with a lap plate, the lower part of the lap plate is fixedly connected with a third electric push rod, the third electric push rod is fixedly connected with a third fixing ring, a rotating block is rotatably installed on the third fixing ring, and the rotating block and the second key rod are fixedly connected.

[0016] Among them, the first winding assembly includes a ratchet connected to the second key rod and the outer side of the first convex plate by a key, a capstan is fixedly connected to the rear side of the ratchet, a fixed shaft is fixedly connected to the first fixed plate, a pawl is rotatably connected to the outer side of the fixed shaft, a torsion spring is fixedly connected between the fixed shaft and the pawl, the first winding assembly and the second winding assembly are connected to the second key rod in the same manner, the second winding assembly is located in the front half of the second convex plate, the ratchet is located in the rear half of the first convex plate, the second winding assembly is connected to the third steel wire rope on the front side, and the capstan is connected to the third steel wire rope on the rear side.

[0017] Among them, the balancing assembly includes a first slider fixedly connected under the first lifting ear, a second slider is fixedly connected to the first slider, a moving groove for the first slider and the second slider to move is opened on the main frame, a protrusion is fixedly connected to the main frame, and a fourth electric push rod is fixedly installed between the protrusion and the second slider.

[0018] (III) Beneficial effects

[0019] The invention provides a lifting device with automatic balance adjustment, which has the following beneficial effects:

[0020] 1. The device is provided with a hydraulic cylinder, which controls the height difference of the heavy objects by changing the extension length of the hydraulic cylinder to achieve higher installation accuracy. In conjunction with the four sets of balancing components above the main frame, the device can adjust the lifting positions of the four third steel ropes on the top surface of the main frame according to the force conditions of the hydraulic cylinders at different positions, thereby realizing the balance adjustment function, solving the problem that the existing lifting device does not have the balance adjustment function. The device has the advantage of being more stable to use.

[0021] 2. The device is provided with a first buffer assembly, a first adjusting assembly, a second buffer assembly and a second adjusting assembly. When the main frame of the device tilts to the left, the pressure sensor will push the first spring, and the first spring will drive the fixing rod and the outer bushing to slide to the left. The pressure plate on the outer bushing can gradually press down the telescopic incremental button. Each time a telescopic incremental button is pressed, the second electric push rod will extend a certain distance, thereby pushing the first support assembly and the second support assembly to the right. When the main frame of the device tilts to the left, it will be automatically pushed to the right, and the pushing method is progressive pushing to ensure the stability of the device during lifting. Since the connection structure of the first buffer assembly and the first adjusting assembly is the same as the structure of the second buffer assembly and the second adjusting assembly and faces in opposite directions, when the weight on the right side of the device is heavier, the device will automatically level to the left after tilting to the right, thereby realizing the function of automatic leveling, solving the problem that the existing lifting device cannot progressively increase the counterweight on the other side of the lifting device when the cargo tilts toward one side of the lifting device. The device has the advantage of greater stability.

[0022] 3. By setting up the first electric push rod and the fixed frame, the first electric push rod is used to change the distance between the first support assembly and the second support assembly. The device can adjust the distance between the left and right groups of the third steel wire ropes. In conjunction with the balancing assembly, the device can accurately adjust the positions of the four groups of steel wire ropes on the upper and lower sides, which can not only increase the flexibility and stability during the lifting process, but also allow the main frame to be fine-tuned when under stress, thereby reducing the uneven distribution of stress points.

[0023] 4. The device is provided with a driving assembly, a telescopic assembly, a first winding assembly and a second winding assembly. The second key rod is driven to rotate by the first key rod, and then the front and rear position of the second key rod is changed by the third electric push rod on the telescopic assembly, so that the second key rod on the device can be connected to the first winding assembly. At this time, the second key rod and the second winding assembly are not connected to each other, or the second key rod and the second winding assembly, and the second key rod and the first winding assembly are not connected to each other, so that the device can synchronously drive multiple winches or drive one of the winches separately through a single driving device, so as to accurately adjust the tension of each third steel wire rope after changing the lifting position, thereby solving the problem that the existing lifting device cannot change the retraction and extension of multiple position winches through a single driving device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 for Figure 1 A magnified schematic diagram of the structure at center A;

[0027] Figure 3 This is a schematic diagram of the connection structure between the first connecting plate and the supporting plate of the present invention;

[0028] Figure 4 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0029] Figure 5 This is a schematic diagram of the split structure of the support plate and the second support assembly of the present invention;

[0030] Figure 6 for Figure 5 A magnified schematic diagram of the structure at C in the middle;

[0031] Figure 7 This is a schematic diagram of the connection structure between the first buffer component and the first adjustment component of the present invention;

[0032] Figure 8 This is a schematic diagram of the connection structure between the drive assembly and the telescopic assembly of the present invention;

[0033] Fig. 9 It is a schematic diagram of the connection structure between the first key rod and the second key rod of the present invention;

[0034] Fig.10 This is a schematic diagram of the split structure of the third fixed ring and the rotating block of the present invention;

[0035] Fig.11 for Fig.10 A magnified schematic diagram of the structure at D in the middle;

[0036] Fig.12 It is a schematic diagram of the overall structure of the winch of the present invention.

[0037] Figure numerals: 1, first steel wire rope; 2, second steel wire rope; 3, first connecting plate; 4, supporting plate; 5, first supporting assembly; 501, first slide plate; 502, second slide plate; 503, slide groove; 504, connecting frame; 6, third steel wire rope; 7, first lifting ring; 8, first lifting ear; 9, main frame; 10, fourth steel wire rope; 11, second lifting ring; 12, hydraulic cylinder; 13, third lifting ring; 14, heavy object; 15, second supporting assembly; 16 , first electric push rod; 17, fixed frame; 18, first buffer assembly; 1801, side plate; 1802, first fixed block; 1803, pressure sensor; 1804, first spring; 1805, slip ring; 1806, connecting rod; 1807, fixed rod; 1808, second spring; 19, first adjustment assembly; 1901, outer bushing; 1902, pressure plate; 1903, second fixed block; 1904, second electric push rod; 1905, telescopic Increment button; 20, second buffer assembly; 21, second adjustment assembly; 22, drive assembly; 2201, bottom plate; 2202, extension plate; 2203, motor; 2204, first key rod; 2205, second key rod; 2206, first fixing ring; 2207, first fixing plate; 2208, second fixing ring; 2209, second fixing plate; 23, retaining ring; 24, telescopic assembly; 2401, lap plate; 2402, third electric push rod; 2403, third fixed ring; 2404, rotating block; 2405, first convex plate; 2406, second convex plate; 25, first winding assembly; 2501, ratchet; 2502, capstan; 2503, fixed shaft; 2504, torsion spring; 2505, pawl; 26, second winding assembly; 27, balancing assembly; 2701, first slider; 2702, second slider; 2703, moving slot; 2704, convex block; 2705, fourth electric push rod. DETAILED DESCRIPTION

[0038] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples of the specification. The following examples are only used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0039] Embodiment 1:

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, the present embodiment proposes a balanced and automatically adjusted lifting device, comprising a first steel wire rope 1, a second steel wire rope 2 is connected to the bottom of the first steel wire rope 1, a first connecting plate 3 is connected to the end of the second steel wire rope 2, a support plate 4 is fixedly connected between two adjacent groups of first connecting plates 3, a first supporting assembly 5 and a second supporting assembly 15 are slidably installed on the left and right sides of the support plate 4, a first electric push rod 16 is installed between the first supporting assembly 5 and the second supporting assembly 15, a third steel wire rope 6 is arranged below the first supporting assembly 5 and the second supporting assembly 15, the first supporting assembly 5 and the second supporting assembly 15 are used to suspend the left and right groups of third steel wire ropes 6, a first lifting ring 7 is connected to the bottom of the third steel wire rope 6, a first lifting ear 8 is connected to the bottom of the first lifting ring 7, a main frame 9 is arranged below the first lifting ear 8, and the first lifting ear 8 and A balancing assembly 27 is installed between the main frames 9. The balancing assembly 27 is used to adjust the suspension position of the third steel wire rope 6 on the top of the main frame 9 to ensure that the device can accurately adjust the lifting position of each point according to the center of gravity of the suspended object. The fourth steel wire rope 10 is connected to the four sides below the main frame 9. The bottom of the fourth steel wire rope 10 is connected to the second lifting ring 11. A hydraulic cylinder 12 is installed below the second lifting ring 11. The hydraulic cylinder 12 can adjust its own extension to change the height difference of the heavy object, thereby improving the installation accuracy of the device. The bottom of the hydraulic cylinder 12 is connected to the third lifting ring 13, and the heavy object 14 is arranged below the third lifting ring 13. The first electric push rod 16 is used to adjust the distance between the first support assembly 5 and the second support assembly 15 on the left and right sides of the device, so that the third steel wire rope 6 at the corresponding position is tightened, so that the heavy object 14 can be stably suspended.

[0041] The first electric push rod 16 is connected to a fixing frame 17, a first buffer assembly 18 is installed on the rear side of the fixing frame 17, a first adjusting assembly 19 is installed on the first buffer assembly 18, and the first buffer assembly 18 cooperates with the first adjusting assembly 19 so that when the center of gravity of the weight 14 on the device is biased to the left, the first buffer assembly 18 can act on the first adjusting assembly 19 to gradually shift the center of gravity of the entire device to the right, so that the center of gravity of the entire lifting device is automatically centered, a second buffer assembly 20 is installed on the front side of the fixing frame 17, and a second adjusting assembly 21 is installed on the second buffer assembly 20, and the first support assembly A driving assembly 22 is installed below the component 5 and the second supporting assembly 15. The driving assembly 22 is installed with a first winding assembly 25, a second winding assembly 26 and a telescopic assembly 24 from front to back. The telescopic assembly 24 is used to change the connection state between the driving assembly 22 and the first winding assembly 25 and the second winding assembly 26. The driving assembly 22 can drive the first winding assembly 25 and the second winding assembly 26 to work synchronously, or drive the first winding assembly 25 or the second winding assembly 26 to work alone, so that the device keeps each third steel wire rope 6 in a tensioned state after the lifting is completed.

[0042] Embodiment 2:

[0043] The solution in Example 1 is further introduced below in combination with a specific working method, as described below:

[0044] like Figure 3 and Figure 4 As shown, as a preferred embodiment, on the basis of the above method, further, the first support assembly 5 includes a second slide plate 502 slidably mounted on the support plate 4, the first slide plate 501 is fixedly connected to the bottom of the second slide plate 502, the first slide plate 501 is fixedly connected to the connecting frame 504, and the support plate 4 is provided with a slide groove 503 for the second slide plate 502 to move. The first support assembly 5 and the second support assembly 15 are connected to the support plate 4 in the same manner, and the second slide plate 502 can slide inside the slide groove 503, thereby changing the position of the first support assembly 5 as a whole on the support plate 4, so as to subsequently adjust the center of gravity of the entire device.

[0045] like Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the first buffer assembly 18 includes a side plate 1801 fixedly connected to the rear side of the fixing frame 17, a first fixing block 1802 is fixedly connected to the side plate 1801, a pressure sensor 1803 is installed on the first fixing block 1802, a first spring 1804 is abutted on the pressure sensor 1803, a slip ring 1805 is fixedly connected to the first spring 1804, a connecting rod 1806 is provided through the slip ring 1805, a second spring 1808 is fixedly connected to the slip ring 1805, a fixing rod 1807 is welded on the top of the slip ring 1805, when the center of gravity of the device is biased to the left, the fixing frame 17 will slide to the left, so as to subsequently trigger the fixing frame 17 to automatically move right, the first spring 1804 and the second spring 1808 facilitate the subsequent slow pushing of the fixing frame 17 to the right, and the connecting rod 1806 ensures that the slip ring 1805 can slide straight left and right.

[0046] like Figure 3 and Figure 4 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the first adjustment component 19 includes a second fixed block 1903 fixedly connected to the support plate 4, the second fixed block 1903 is fixedly connected to the second electric push rod 1904, the outer side of the second electric push rod 1904 is installed with an outer bushing 1901, the second electric push rod 1904 is installed with a telescopic incremental button 1905, the outer bushing 1901 is fixedly connected to the fixed rod 1807 and the connecting rod 1806, and the outer bushing 1901 is fixedly connected to the side of the telescopic incremental button 1905 close to the outer bushing 1901. When the connecting rod 1806 moves to the left, the pressure plate 1902 can gradually press down the telescopic incremental buttons 1905 at various positions from right to left, so that when the device deflects to the left, the second electric push rod 1904 can be progressively pushed to the right until the center of gravity of the device is centered.

[0047] like Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the connection method between the first buffer component 18 and the first adjusting component 19 is the same as the connection method between the second buffer component 20 and the second adjusting component 21 but in the opposite direction, the connection methods between the first buffer component 18, the first adjusting component 19, the second buffer component 20 and the second adjusting component 21 and the first connecting plate 3, the support plate 4 and the fixed frame 17 are all the same, the slip ring 1805, the fixed rod 1807, the outer bushing 1901 and the pressure plate 1902 are a whole, the telescopic incremental buttons 1905 are evenly spaced on the second electric push rod 1904, and the outer bushing 1901 and the second electric push rod 1904 are slidably connected. When the center of gravity of the device is biased to the left, the first adjusting component 19 can progressively push the fixed frame 17 to the right, and when the center of gravity of the device is to the right, the second buffer component 20 can act on the second adjusting component 21, so that the fixed frame 17 gradually moves slowly to the left, thereby ensuring that the device is always in a dynamic balance state.

[0048] like Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, as a preferred embodiment, on the basis of the above method, further, the driving assembly 22 includes a bottom plate 2201 fixedly connected to the first slide plate 501 and the bottom of the second supporting assembly 15, the front end of the bottom plate 2201 is fixedly connected to an extension plate 2202, a motor 2203 is fixedly installed below the extension plate 2202, a first key rod 2204 is connected to the output shaft of the motor 2203, the outer key of the first key rod 2204 is connected to the second key rod 2205, a first fixing ring 2206 is fixedly connected to the bottom of the bottom plate 2201, a first fixing plate 2207 is fixedly provided on the side of the first fixing ring 2206, a second fixing ring 2208 is provided on the rear side of the first fixing ring 2206, and a second fixing plate 2209 is fixedly connected to the side of the second fixing ring 2208, the first key rod 2204 is driven to rotate by the motor 2203 on the extension plate 2202, thereby driving the second key rod 2205 to rotate, so as to subsequently reel in or lower the wire rope at the corresponding position.

[0049] like Figure 8 As shown, as a preferred embodiment, on the basis of the above method, further, the bottom plate 2201, the extension plate 2202, the first fixing ring 2206, the first fixing plate 2207, the second fixing ring 2208 and the second fixing plate 2209 are a whole, and the second key rod 2205 is fixedly connected with a retaining ring 23, and the retaining ring 23 can limit the shortening distance of the second key rod 2205 to ensure the stable operation of the second key rod 2205.

[0050] like Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, as a preferred embodiment, on the basis of the above method, further, the telescopic component 24 includes a first convex plate 2405 and a second convex plate 2406 fixedly connected to the front and rear sides of the second key rod 2205, the first convex plate 2405 and the second convex plate 2406 are evenly distributed along the circumference of the second key rod 2205, the rear side of the base plate 2201 is fixedly connected with a lap plate 2401, the lower part of the lap plate 2401 is fixedly connected with a third electric push rod 2402, the third electric push rod 2402 is fixedly connected with a third fixed ring 2403, the third fixed ring 2403 is rotatably mounted with a rotating block 2404, the rotating block 2404 and the second key rod 2205 are fixedly connected, and the third electric push rod 2402 can be extended or shortened so that the third fixed ring 2403 can drive the rotating block 2404 and the second key rod 2205 to move forward or backward, so as to wind the wire rope at different positions.

[0051] like Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the first winding assembly 25 includes a ratchet 2501 key-connected to the second key rod 2205 and the outer side of the first convex plate 2405, the rear side of the ratchet 2501 is fixedly connected to a capstan 2502, the first fixed plate 2207 is fixedly connected to a fixed shaft 2503, the outer side of the fixed shaft 2503 is rotatably connected to a pawl 2505, a torsion spring 2504 is fixedly connected between the fixed shaft 2503 and the pawl 2505, and the first winding assembly 25 and the second winding assembly 26 are connected to the second key rod 2205 in the same manner. The second winding assembly 26 is located at the front half of the second convex plate 2406, the ratchet 2501 is located at the rear half of the first convex plate 2405, the second winding assembly 26 is connected to the third steel wire rope 6 on the front side, and the winch 2502 is connected to the third steel wire rope 6 on the rear side. When the second key rod 2205 moves backward to be connected only to the ratchet 2501, the rotation of the second key rod 2205 will only pull the third steel wire rope 6 on the front side. When the second key rod 2205 moves to be connected only to the second winding assembly 26, the rotation of the second key rod 2205 will pull the third steel wire rope 6 on the rear side of the device. When the second key rod 2205 is in Fig.10 When in the middle state, the second key rod 2205 rotates, and the pawl 2505 on the fixed shaft 2503 can prevent the ratchet 2501 from rotating counterclockwise under the action of the torsion spring 2504, so that the third steel wire ropes 6 on the front and rear sides of the device are pulled synchronously, so that the third steel wire ropes 6 at various locations are in a tensioned state.

[0052] like Figure 1 and Figure 2As shown, as a preferred embodiment, on the basis of the above method, further, the balancing component 27 includes a first slider 2701 fixedly connected to the bottom of the first lifting ear 8, the second slider 2702 is fixedly connected to the first slider 2701, and a moving groove 2703 for the first slider 2701 and the second slider 2702 to move is opened on the main frame 9, a protrusion 2704 is fixedly connected to the main frame 9, and a fourth electric push rod 2705 is fixedly installed between the protrusion 2704 and the second slider 2702. The fourth electric push rod 2705 is used to adjust the position of each group of first lifting ears 8, the first slider 2701 and the second slider 2702, so that the device can change the suspension position of the main frame 9, thereby enhancing the stability of the device during use.

[0053] Embodiment 3:

[0054] The schemes in Example 1 and Example 2 are further introduced below in combination with specific working methods, as described below for details:

[0055] Specifically, when the hoisting device with automatic balance adjustment is used: Figure 1 , Figure 2 and Figure 3 As shown, the third lifting ring 13 is used to suspend the weight 14. The extension of the four hydraulic cylinders 12 is adjusted according to the weight 14, thereby improving the installation accuracy and ensuring that the fourth steel wire rope 10, the second lifting ring 11, the hydraulic cylinder 12 and the third lifting ring 13 around the main frame 9 can stably lift the weight 14, thereby ensuring the safety of the lifting process. Figure 2 As shown, according to the position of the center of gravity of the weight 14, the third steel wire rope 6, the first lifting ring 7, the first lifting ear 8 and the balance assembly 27 around the main frame 9 are adjusted, and by extending or shortening the fourth electric push rod 2705 on the protrusion 2704, the first lifting ear 8, the first slider 2701 and the second slider 2702 slide in the movable groove 2703 on the main frame 9, thereby accurately adjusting the position of the four third steel wire ropes 6, so that the center of gravity of the weight 14 can be located in the middle position of the lifting device later, thereby ensuring stability during lifting.

[0056] like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12As shown, the device can ensure the stability of the lifting process. Since the first support assembly 5 is connected to the second support assembly 15 through the first electric push rod 16, the distance between the second support assembly 15 and the first support assembly 5 is adjustable, and when the device as a whole tilts to the left, the first electric push rod 16 will drive the fixing frame 17 to move to the left. When the fixing frame 17 moves to the left, the second slide 502 above the first slide 501 can slide inside the slide groove 503. The connecting frame 504 ensures that the first slide 501 and the second slide 502 slide smoothly. When the first electric push rod 16 is extended or shortened, the sliding range of the second support assembly 15 and the first support assembly 5 will change, so as to adjust the sensitivity of the automatic leveling later. When the second support When the component 15 and the first supporting component 5 tilt to the left as a whole, the side plate 1801, the first fixed block 1802 and the pressure sensor 1803 on the first buffer component 18 will push the first spring 1804, and the slip ring 1805 on the left side of the first spring 1804 will slide on the outside of the connecting rod 1806. The second spring 1808 is gradually compressed, and the fixed rod 1807 drives the outer bushing 1901 and the pressure plate 1902 on the first adjusting component 19 to move slowly to the left, and press the telescopic incremental buttons 1905 on the second electric push rod 1904 one by one. Each time the telescopic incremental button 1905 is pressed, the second electric push rod 1904 will extend a certain distance, so that the center of gravity of the heavy object 14 moves to the middle position of the lifting device again. Since the connection method between the first buffer assembly 18 and the first adjustment assembly 19 is the same as the connection method between the second buffer assembly 20 and the second adjustment assembly 21 but in the opposite direction, and the connection methods between the first buffer assembly 18, the first adjustment assembly 19, the second buffer assembly 20 and the second adjustment assembly 21 and the first connecting plate 3, the support plate 4 and the fixing frame 17 are the same. When the weight drives the second support assembly 15 and the first support assembly 5 to tilt to the right, the second buffer assembly 20 and the second adjustment assembly 21 can progressively push the second support assembly 15 and the first support assembly 5 slowly to the left, so that the device always remains stable. After the end position adjustment of the third steel wire rope 6 is completed, it is necessary to keep each third steel wire rope 6 in a tensioned state. When the second key rod 2205 on the drive assembly 22 is in the Fig.10 When the first key rod 2204 is in the middle position, the motor 2203 on the extension plate 2202 drives the first key rod 2204 to rotate, driving the second key rod 2205 to rotate. The first convex plate 2405 and the second convex plate 2406 on the second key rod 2205 are used to drive the first winding assembly 25 and the second winding assembly 26 to work respectively. The second key rod 2205 drives the ratchet 2501 to lock once every time it rotates a certain angle. The ratchet 2505 on the fixed shaft 2503 can prevent the ratchet 2501 from rotating counterclockwise under the action of the torsion spring 2504, so that the third steel wire rope 6 on the front and rear sides of the device is synchronously wound on the capstan 2502.

[0057] like Fig. 9 , Fig.10 and Fig.11 As shown, the device can extend or shorten the third electric push rod 2402 under the lap plate 2401, thereby pulling the second key rod 2205 forward and backward through the third fixed ring 2403 and the rotating block 2404. Then the positions of the first convex plate 2405 and the second convex plate 2406 on the first winding assembly 25 and the second winding assembly 26 are changed. When the second key rod 2205 moves backward to only be connected with the ratchet 2501 key, the rotation of the second key rod 2205 will only act on the first winding assembly 25, the second winding assembly 26 remains stationary, and the third steel wire rope 6 on the front side of the device is pulled. When the second key rod 2205 moves to only be connected with the second winding assembly 26, the rotation of the second key rod 2205 will pull the third steel wire rope 6 on the rear side of the device, and the first winding assembly 25 remains stationary, so that the third steel wire rope 6 at each location is in a tensioned state. The first fixing ring 2206 and the first fixing plate 2207 below the bottom plate 2201 are used to support the ratchet 2501 , the second fixing ring 2208 and the second fixing plate 2209 are used to support the second winding assembly 26 , and the retaining ring 23 can limit the range of the second key rod 2205 moving backward to prevent the second key rod 2205 from separating from the first winding assembly 25 .

[0058] The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A hoisting device with automatic balance adjustment, comprising a first steel wire rope (1), characterized in that: A second steel wire rope (2) is connected below the first steel wire rope (1), a first connecting plate (3) is connected to the end of the second steel wire rope (2), a support plate (4) is fixedly connected between two adjacent groups of first connecting plates (3), a first support assembly (5) and a second support assembly (15) are slidably mounted on the left and right sides of the support plate (4), a first electric push rod (16) is mounted between the first support assembly (5) and the second support assembly (15), a third steel wire rope (6) is arranged below the first support assembly (5) and the second support assembly (15), the bottom of the third steel wire rope (6) is connected to A first lifting ring (7) is connected, a first lifting eye (8) is connected below the first lifting eye (7), a main frame (9) is arranged below the first lifting eye (8), a balancing assembly (27) is installed between the first lifting eye (8) and the main frame (9), a fourth steel wire rope (10) is connected to all four sides below the main frame (9), a second lifting ring (11) is connected to the bottom of the fourth steel wire rope (10), a hydraulic cylinder (12) is installed below the second lifting ring (11), a third lifting ring (13) is connected to the bottom of the hydraulic cylinder (12), and a weight (14) is arranged below the third lifting ring (13); The first electric push rod (16) is connected to a fixing frame (17), a first buffer assembly (18) is installed on the rear side of the fixing frame (17), a first adjustment assembly (19) is installed on the first buffer assembly (18), a second buffer assembly (20) is installed on the front side of the fixing frame (17), a second adjustment assembly (21) is installed on the second buffer assembly (20), and a driving assembly (22) is installed below the first supporting assembly (5) and the second supporting assembly (15), and the driving assembly (22) is installed with a first winding assembly (25), a second winding assembly (26) and a telescopic assembly (24) in sequence from front to back.

2. A hoisting device with automatic balance adjustment according to claim 1, characterized in that: The first supporting assembly (5) comprises a second slide plate (502) slidably mounted on the supporting plate (4); the first slide plate (501) is fixedly connected below the second slide plate (502); a connecting frame (504) is fixedly connected to the first slide plate (501); a sliding groove (503) for the second slide plate (502) to move is provided on the supporting plate (4); and the first supporting assembly (5) and the second supporting assembly (15) are connected to the supporting plate (4) in the same manner.

3. The hoisting device with automatic balance adjustment according to claim 1, characterized in that: The first buffer assembly (18) comprises a side plate (1801) fixedly connected to the rear side of the fixing frame (17); a first fixing block (1802) is fixedly connected to the side plate (1801); a pressure sensor (1803) is installed on the first fixing block (1802); a first spring (1804) is abutted against the pressure sensor (1803); a slip ring (1805) is fixedly connected to the first spring (1804); a connecting rod (1806) is provided through the slip ring (1805); a second spring (1808) is fixedly connected to the slip ring (1805); and a fixing rod (1807) is welded to the top of the slip ring (1805).

4. A hoisting device with automatic balance adjustment according to claim 3, characterized in that: The first adjustment component (19) includes a second fixed block (1903) fixedly connected to the support plate (4), the second fixed block (1903) is fixedly connected to a second electric push rod (1904), an outer sleeve (1901) is installed on the outer side of the second electric push rod (1904), a telescopic incremental button (1905) is installed on the second electric push rod (1904), the outer sleeve (1901) is fixedly connected to the fixed rod (1807) and the connecting rod (1806), and a pressure plate (1902) is fixedly connected to the side of the outer sleeve (1901) close to the telescopic incremental button (1905).

5. A hoisting device with automatic balance adjustment according to claim 4, characterized in that: The connection mode between the first buffer component (18) and the first adjustment component (19) is the same as the connection mode between the second buffer component (20) and the second adjustment component (21) but in the opposite direction; the connection modes between the first buffer component (18), the first adjustment component (19), the second buffer component (20) and the second adjustment component (21) and the first connecting plate (3), the support plate (4) and the fixing frame (17) are the same; the slip ring (1805), the fixing rod (1807), the outer bushing (1901) and the pressure plate (1902) are a whole; the telescopic incremental buttons (1905) are evenly spaced on the second electric push rod (1904); and the outer bushing (1901) and the second electric push rod (1904) are in sliding connection.

6. The hoisting device with automatic balance adjustment according to claim 1, characterized in that: The driving assembly (22) comprises a bottom plate (2201) fixedly connected to the first slide plate (501) and the bottom of the second supporting assembly (15); an extension plate (2202) is fixedly connected to the front end of the bottom plate (2201); a motor (2203) is fixedly installed below the extension plate (2202); a first key rod (2204) is connected to the output shaft of the motor (2203); an outer key of the first key rod (2204) is connected to the second key rod (2205); a first fixing ring (2206) is fixedly connected to the bottom of the bottom plate (2201); a first fixing plate (2207) is fixedly arranged on the side of the first fixing ring (2206); a second fixing ring (2208) is arranged on the rear side of the first fixing ring (2206); and a second fixing plate (2209) is fixedly connected to the side of the second fixing ring (2208).

7. A hoisting device with automatic balance adjustment according to claim 6, characterized in that: The base plate (2201), the extension plate (2202), the first fixing ring (2206), the first fixing plate (2207), the second fixing ring (2208) and the second fixing plate (2209) are an integral whole, and a retaining ring (23) is fixedly connected to the second key rod (2205).

8. The hoisting device with automatic balance adjustment according to claim 6, characterized in that: The telescopic assembly (24) comprises a first convex plate (2405) and a second convex plate (2406) fixedly connected to the front and rear sides of the second key rod (2205); the first convex plate (2405) and the second convex plate (2406) are evenly distributed along the circumference of the second key rod (2205); a lap plate (2401) is fixedly connected to the rear side of the base plate (2201); a third electric push rod (2402) is fixedly connected below the lap plate (2401); a third fixed ring (2403) is fixedly connected to the third electric push rod (2402); a rotating block (2404) is rotatably mounted on the third fixed ring (2403); and the rotating block (2404) and the second key rod (2205) are fixedly connected.

9. The hoisting device with automatic balance adjustment according to claim 8, characterized in that: The first winding assembly (25) comprises a ratchet (2501) connected by a key to the second key rod (2205) and the outer side of the first convex plate (2405); a capstan (2502) is fixedly connected to the rear side of the ratchet (2501); a fixed shaft (2503) is fixedly connected to the first fixed plate (2207); a ratchet (2505) is rotatably connected to the outer side of the fixed shaft (2503); and the fixed shaft (2503) and the ratchet (2505) are fixedly connected to each other. There is a torsion spring (2504), the first winding assembly (25) and the second winding assembly (26) are connected to the second key rod (2205) in the same manner, the second winding assembly (26) is located in the front half of the second convex plate (2406), the ratchet (2501) is located in the rear half of the first convex plate (2405), the second winding assembly (26) is connected to the third steel wire rope (6) on the front side, and the winch (2502) is connected to the third steel wire rope (6) on the rear side.

10. The hoisting device with automatic balance adjustment according to claim 1, characterized in that: The balancing assembly (27) includes a first slider (2701) fixedly connected to the bottom of the first lifting ear (8), a second slider (2702) fixedly connected to the first slider (2701), a moving groove (2703) for the first slider (2701) and the second slider (2702) to move is provided on the main frame (9), a protrusion (2704) is fixedly connected to the main frame (9), and a fourth electric push rod (2705) is fixedly installed between the protrusion (2704) and the second slider (2702).

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