Intelligent shoulder pole for double-machine lifting and use method

Abstract

The present invention discloses an intelligent shoulder pole for lifting with two machines and a method for using the pole. The pole comprises a synchronous control device, with fixed tubes welded to both sides of the synchronous control device. Sliding tubes are slidably sleeved on the two fixed tubes. A lifting lug is fixedly connected to one end of each sliding tube, which is away from each other. Each lifting lug is provided with a lifting lug reinforcement plate. A weight lifting lug is fixedly connected to the lower end of the synchronous control device. Self-locking devices are provided on the sidewalls of the two fixed tubes. The pole comprises the following steps: S1: Two lifting machines lift at both ends of the intelligent shoulder pole, hanging a weight from the weight lifting lugs; S2: When the rotation rates of the two lifting machines differ, the intelligent shoulder pole automatically retracts toward both ends simultaneously, ensuring that the lifting machine wire ropes remain vertical. The present invention has a reasonable structural design and can be intelligently adjusted, making it suitable for most construction site lifting operations and reducing safety accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of construction site hoisting, and in particular to an intelligent shoulder pole for double-machine lifting and a use method thereof. Background Art

[0002] A construction site is any approved area where construction activities, such as building construction, civil engineering, equipment installation, and pipeline laying, are carried out for industrial and civil projects. It also includes any land, sea, or air space where construction can take place. The project manager is fully responsible for on-site management of the construction process and should establish and organize site management responsibilities based on the project scale, technical complexity, and specific construction site conditions.

[0003] At present, the length of the shoulder poles used for lifting by two cranes on construction sites is fixed and cannot be adjusted at any time according to actual conditions. When the lifting and rotation rates of the crane are inconsistent, parallel tension is likely to occur, causing the crane to overturn. Therefore, we propose an intelligent shoulder pole for lifting by two cranes and its usage method. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an intelligent shoulder pole for double-machine lifting and a method of use.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An intelligent shoulder pole for lifting with two machines, including a synchronous control device, fixed tubes are welded on both sides of the synchronous control device, sliding tubes are slidably sleeved on the two fixed tubes, and ends of the two sliding tubes away from each other are fixedly connected to lifting ears of a lifting machine, and lifting ear reinforcement plates are provided at the two lifting ears of the lifting machine, and the lower end of the synchronous control device is fixedly connected to a heavy object lifting ear, and the side walls of the two fixed tubes are provided with self-locking devices, and the self-locking device includes a side box, and the inner bottom of the side box is fixedly connected to a motor. The output shaft of the motor is provided with a one-way clutch, the output shaft end of the motor is fixedly connected to a self-locking device driving gear, the inner wall of the side box is fixedly connected to a self-locking rod guide rail, the self-locking rod rack plate is slidably connected to the self-locking rod guide rail, the lower end of the self-locking rod rack plate is fixedly connected to the self-locking rod, the inner bottom of the side box is fixedly connected to a first trigger device, the inner wall of the side box is fixedly connected to a device plate, the side wall of the device plate is penetrated by a pry bar, and the lower end of the pry bar is provided with a rubber spring and an insulating spacer. The cam face has two camming teeth, one of which is a toothed plate, the other is a toothed plate, and the other is a toothed plate, each of which is fixedly connected to the guide rail, and the other is fixedly connected to the guide rail with a toothed plate.

[0007] Preferably, the first trigger device includes a device plate fixedly connected to the bottom of the side box, a second angle control slot is provided on the device plate 35, a second steel ball is rolled in the second angle control slot, a second positive and negative conductive sheet is provided on one side of the second angle control slot, a slot is provided on the side wall of the device plate, the insulating partition moves in the slot, and a positive and negative plate of the self-locking rod recovery circuit is provided on the other side of the trigger slot at the bottom of the side box.

[0008] Preferably, the second trigger device includes a trigger groove arranged on the outer side wall of the box body, the inner bottom of the trigger groove is designed with a first angle control slide groove, a first positive and negative conductive sheet is provided on one side of the trigger groove, a first steel ball is rolled in the first angle control slide groove, and the design angles of the two mutually symmetrical first angle control slide grooves located on the outside of the box body correspond to each other.

[0009] Preferably, a sliding tube positioning groove is provided between the two fixed tubes and the corresponding sliding tubes.

[0010] Preferably, the connection points between the two sliding tubes and the corresponding lifting machinery ears are fixedly connected with retaining rings.

[0011] Preferably, a plurality of stiffening plates are fixedly connected to the inner wall of the box body.

[0012] A method for using an intelligent shoulder pole for lifting two machines comprises the following steps:

[0013] S1: Two lifting machines lift the load at both ends of the smart shoulder pole and hang the load on the load lifting ears;

[0014] S2: When the two hoisting machines rotate at different rates, tension is generated on both sides simultaneously, pulling the sliding tubes on both sides toward each other, causing the smart shoulder pole to stretch. The sliding tubes on both sides slide on the corresponding fixed tubes, ensuring uniform force on both sides and keeping the hoisting machine wire rope in a vertical state at all times.

[0015] S3: When the lifting speeds of the two cranes are different, there is a height difference between the two ends of the smart shoulder pole. When a certain angle is reached, the first steel ball in the indicator device will move to the first positive and negative conductive plates in the corresponding direction, causing the tilt indicator light in that direction to light up. The indicator device will flash to the lower side as a reminder. The crane operator will keep the smart shoulder pole parallel, and the tilt indicator light will go out.

[0016] S4: If the crane operator fails to notice the tilt indicator light and the angle of the smart shoulder pole continues to increase, the self-locking device will be activated, driving the self-locking rod to enter the self-locking hole at the corresponding position and lock it. The smart shoulder pole will be locked. When the smart shoulder pole returns to stability, the self-locking device will move in the reverse direction and unlock.

[0017] The present invention has the following beneficial effects:

[0018] In the present invention, by setting up various devices to cooperate with each other, the intelligent shoulder pole in the device can be automatically and intelligently adjusted according to the actual situation to ensure the safety of lifting, and solve the possibility of lateral horizontal tension caused by the asynchronous lifting of the two machines, which may cause the lifting machinery to overturn. It is also applicable to a wide range of situations and is basically suitable for all construction sites, so it is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an intelligent shoulder pole for lifting with two machines and its use method proposed by the present invention;

[0020] Figure 2 This is a cross-sectional view of the overall structure of an intelligent shoulder pole for lifting with two machines and a method of using the same, as proposed by the present invention;

[0021] Figure 3 A cross-sectional view of a synchronous control device for a smart shoulder pole for lifting two machines and a method of using the same, as proposed by the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of an intelligent shoulder pole for lifting two machines and an indicator device for its use method proposed by the present invention;

[0023] Figure 5 This is a schematic diagram of the self-locking device structure of an intelligent shoulder pole for lifting with two machines and a method of using the pole;

[0024] Figure 6 This is a side sectional view of the self-locking device of the intelligent shoulder pole for lifting with two machines and the method of using it proposed by the present invention.

[0025] In the figure: 1 sliding tube, 2 fixed tube, 3 self-locking device, 4 synchronous control device, 5 heavy object lifting eye, 6 indicating device, 7 lifting machinery lifting eye, 8 fixed plate, 9 synchronous rack plate, 10 stiffening plate, 11 synchronous control gear, 12 rack plate positioning auxiliary rod, 13 retaining ring, 14 rotating shaft, 15 inner lining plate, 16 lifting eye reinforcement plate, 17 tilt indicator light, 18 first positive and negative conductive sheets, 19 first angle control slide, 20 first steel ball, 21 bearing, 22 self-locking rod rack plate, 23 self-locking rod guide rail, 24 self-locking device driving gear, 25 self-locking rod, 26 one-way clutch, 27 motor, 28 pry bar, 29 insulating partition, 30 rubber spring, 31 self-locking rod recovery circuit positive and negative plates, 32 second steel ball, 33 second angle control slide, 34 second positive and negative conductive sheets, 35 device plate. DETAILED DESCRIPTION

[0026] The technical solutions 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 only part of the embodiments of the present invention, rather than all the embodiments.

[0027] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0028] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] Reference Figure 1-6 A smart shoulder pole for lifting with two machines includes a synchronous control device 4, fixed tubes 2 are welded on both sides of the synchronous control device 4, and sliding tubes 1 are slidably sleeved on the two fixed tubes 2. Sliding tube positioning grooves are provided between the two fixed tubes 2 and the corresponding sliding tubes 1. The existence of the sliding tube positioning grooves is to ensure that the sliding tubes 1 will not rotate when sliding in the corresponding fixed tubes 2. The ends of the two sliding tubes 1 that are away from each other are fixedly connected to the lifting lugs 7 of the lifting machinery, and the connection between the two sliding tubes 1 and the corresponding lifting lugs 7 is fixedly connected to the retaining rings 13. The retaining ring 13 is provided to prevent the sliding tube 1 from sliding inward and colliding with the lifting lug 7 of the lifting machinery. The two lifting lugs 7 of the lifting machinery are provided with a lifting lug reinforcement plate 16. The lifting lug reinforcement plate 16 can strengthen the lifting lug 7 of the lifting machinery. The lower end of the synchronous control device 4 is fixedly connected to the heavy object lifting lug 5. The heavy object lifting lug 5 is used to lift heavy objects. The side walls of the two fixed tubes 2 are provided with a self-locking device 3. The side walls of the synchronous control device 4 are fixedly connected with an indicating device 6. The indicating device 6 includes tilt indicator lights 17 on both sides and two symmetrical second trigger devices.

[0030] Among them, the synchronous control device 4 includes a box body, and a plurality of stiffening plates 10 are fixedly connected to the inner wall of the box body, and two front and rear corresponding inner lining plates 15 are fixedly connected to the inner wall of the box body, and bearings 21 are provided through the opposite side walls of the two inner lining plates 15, and a rotating shaft 14 is connected between the two bearings 21 for common rotation, and a synchronous control gear 11 is fixedly connected to the side wall of the rotating shaft 14, and a fixed plate 8 is fixedly connected to the opposite side between the two sliding tubes 1, and a synchronous rack plate 9 is fixedly connected to the side wall of the two fixed plates 8, and the two synchronous rack plates 9 are parallel to each other and offset, and the two synchronous rack plates 9 are respectively engaged with the synchronous control gear 11, and a plurality of rack plate positioning auxiliary rods 12 are fixedly connected to the opposite side walls between the two inner lining plates 15, and the positions of the plurality of rack plate positioning auxiliary rods 12 correspond to the positions of the two synchronous rack plates 9 and slide with each other.

[0031] Among them, the self-locking device 3 includes a side box, the inner bottom of the side box is fixedly connected to the motor 27, and the output shaft of the motor 27 is provided with a one-way clutch 26. The one-way clutch 26 can ensure that the motor 27 will idle within a specific time and will not burn out the motor 27. The end of the output shaft of the motor 27 is fixedly connected to the self-locking device driving gear 24, and the inner wall of the side box is fixedly connected to the self-locking rod guide rail 23. The self-locking rod rack plate 22 is slidably connected to the self-locking rod guide rail 23, and the lower end of the self-locking rod rack plate 22 is fixedly connected to the self-locking rod 25. The inner bottom of the side box is fixedly connected to the first trigger device, and the inner wall of the side box is fixedly connected to the device plate. A pry is provided through the side wall of the device plate. Rod 28, the lower end of the pry rod 28 is provided with a rubber spring 30 and an insulating partition 29, and a plurality of self-locking holes arranged at equal intervals horizontally are provided on the side wall of the slide tube 1 at the corresponding position. The first trigger device includes a device plate 35 fixedly connected to the bottom of the side box, and a second angle control slide groove 33 is provided on the device plate 35. A second steel ball 32 is rolled in the second angle control slide groove 33. A second positive and negative conductive sheet 34 is provided on one side of the second angle control slide groove 32. A slot is provided on the side wall of the device plate 35, and the insulating partition 29 moves in the slot. A self-locking rod recovery circuit positive and negative plate 31 is provided on the other side of the trigger slot at the bottom of the side box.

[0032] Specifically, the second trigger device includes a trigger groove arranged on the outer wall of the box body, and a first angle control slide groove 19 is designed at the inner bottom of the trigger groove. A first positive and negative conductive sheet 18 is provided on one side of the trigger groove. A first steel ball 20 is rolled in the first angle control slide groove 19, and the design angles of the two mutually symmetrical first angle control slide grooves 19 located on the outside of the box body correspond to each other.

[0033] In a preferred embodiment, the inclination angle of the first angle control slot 19 is smaller than the inclination angle of the second angle control slot 33, so that when the smart shoulder pole tilts, the second trigger device can first trigger the indicator device 6 to work to provide a prompt, and when the smart shoulder pole tilts further, the first trigger device can trigger the self-locking device 3 to work to lock the corresponding slide tube 1.

[0034] The actual working process of the mechanical structure in this device is as follows:

[0035] 1. When the two hoisting machines only have different rotation rates but no tilt occurs, the sliding tubes 1 on both sides will slide freely back and forth in the fixed tubes 2 on both sides. The corresponding synchronous rack plates 9 can be pulled by the two inner fixed plates 8 to rotate on the corresponding synchronous control gears 11. This can ensure that the device will not be forcibly stretched when the rotation rates are different, causing component breakage. In this process, the multiple rack plate positioning auxiliary rods 12 in the box body play a role in limiting and positioning the corresponding synchronous rack plates 9, thereby increasing the stability of the device.

[0036] 2. When the two hoisting machines rotate at different rates, the device will tilt, which will cause a safety hazard. At this time, the indicator device 6 on the side of the box will work. Under the action of gravity during tilting, the first steel ball 20 on the corresponding side will roll in the corresponding first angle control chute 19. When the first steel ball 20 moves to the first positive and negative conductive sheet 18 at the corresponding position, the tilt indicator light 17 in that direction can be turned on. After the tilt indicator light 17 in that direction lights up, it will remind the driver to keep it level. If he still doesn't notice it, when a more serious tilt occurs, the self-locking device 3 will enter the working state, and the second steel ball 32 at the corresponding position will roll in the corresponding second angle control chute 33 to the corresponding second positive and negative conductive sheet 34, and the motor 27 will be powered on. The end of the output shaft of the motor 27 can drive the self-locking device control gear 24 to rotate, which can then drive the self-locking rod rack plate 22 When the cam 25 is in the state of being locked, the locking rod 25 is locked and the locking rod 25 is locked.

[0037] A method for using an intelligent shoulder pole for lifting two machines comprises the following steps:

[0038] S1: Two lifting machines lift the load at both ends of the smart shoulder pole and hang the load on the load lifting ears;

[0039] S2: When the two hoisting machines rotate at different rates, tension is generated on both sides at the same time, which will pull the sliding pipes 1 on both sides to the sides at the same time, causing the smart shoulder pole to stretch. The sliding pipes 1 on both sides slide on the corresponding fixed pipes 2 to ensure uniform force on both sides, which can ensure that the hoisting machine wire rope is always in a vertical state.

[0040] Furthermore, when the lifting speeds of the two cranes are different, there is a height difference between the two ends of the smart shoulder pole, and at this time a certain angle is reached, which can enable the first steel column to roll in the first control slide 19, and the first steel ball 20 in the indicator device 6 will move to the first positive and negative conductive plates 18 in the corresponding direction, so that the tilt indicator light 17 in that direction will light up, and the indicator device 6 will flash to remind the lower side, and the crane operator will keep the smart shoulder pole parallel, and the tilt indicator light 17 will go out.

[0041] Furthermore, when the lifting speeds of the two lifting machines are different, there is a height difference between the two ends of the smart shoulder pole, and a certain angle is reached at this time. This angle can make the second steel ball 32 roll in the corresponding second angle control slide groove 33 to the corresponding second positive and negative conductive sheet 34, and the motor 27 is powered on. At this time, the self-locking device 3 is started, driving the self-locking rod 25 to enter the self-locking hole at the corresponding position and lock it. The smart shoulder pole is locked. When the smart shoulder pole returns to stability, the self-locking device 3 reverses and leaves to unlock.

[0042] Preferably, the angle for starting the self-locking device 3 is greater than the angle for starting the indicating device 6, so that when the smart shoulder pole tilts a little, the indicator light is used to remind you first. If the crane operator does not notice the reminder of the indicator light, and the angle of the smart shoulder pole continues to increase, the self-locking device will realize self-locking, thereby ensuring the construction safety of the smart shoulder pole.

[0043] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An intelligent shoulder pole for lifting with two machines, comprising a synchronous control device (4), characterized in that: The synchronous control device (4) is welded with fixed tubes (2) on both sides, and a sliding tube (1) is slidably inserted on the two fixed tubes (2). The ends of the two sliding tubes (1) that are away from each other are fixedly connected to a lifting lug (7) of a lifting machine. The lower end of the synchronous control device (4) is fixedly connected to a heavy object lifting lug (5). The synchronous control device (4) includes a box body, and two front and rear corresponding inner lining plates (15) are fixedly connected to the inner wall of the box body. Bearings (21) are provided through the opposite side walls of the two inner lining plates (15). A rotating shaft (14) is connected to the two bearings (21) for common rotation. The rotating shaft (1 4) is fixedly connected to the side wall thereof with a synchronous control gear (11), a fixed plate (8) is fixedly connected to the opposite side of the two sliding tubes (1), a synchronous rack plate (9) is fixedly connected to the side wall of the two fixed plates (8), the two synchronous rack plates (9) are offset parallel to each other, and the two synchronous rack plates (9) are respectively engaged with the synchronous control gear (11), and a plurality of rack plate positioning auxiliary rods (12) are fixedly connected to the opposite side walls of the two inner lining plates (15), and the positions of the plurality of rack plate positioning auxiliary rods (12) respectively correspond to the positions of the two synchronous rack plates (9) and slide relative to each other; A self-locking device (3) is provided at the side walls of the two fixed tubes (2), and the self-locking device (3) includes a side box, the inner bottom of the side box is fixedly connected to a motor (27), the output shaft of the motor (27) is provided with a one-way clutch (26), the output shaft end of the motor (27) is fixedly connected to a self-locking device driving gear (24), the inner wall of the side box is fixedly connected to a self-locking rod guide rail (23), and the self-locking rod rack plate (24) is slidably connected to the self-locking rod guide rail (23). 22), the lower end of the self-locking rod rack plate (22) is fixedly connected to a self-locking rod (25), the inner bottom of the side box is fixedly connected to a first trigger device, the inner wall of the side box is fixedly connected to a device plate (35), a pry bar (28) is provided through the side wall of the device plate (35), a rubber spring (30) and an insulating partition (29) are provided at the lower end of the pry bar (28), and a plurality of self-locking holes arranged at equal intervals horizontally are provided through the side wall of the slide tube (1) at the corresponding position; The first trigger device comprises a device plate (35) fixedly connected to the bottom of the side box, a second angle control slot (33) is provided on the device plate (35), a second steel ball (32) is provided in a rolling manner in the second angle control slot (33), a second positive and negative conductive sheet (34) is provided on one side of the second angle control slot (33), a slot is provided on the side wall of the device plate (35), the insulating partition (29) moves in the slot, and a self-locking rod recovery circuit positive and negative plate (31) is provided on the other side of the trigger slot at the bottom of the side box; An indicator device (6) is fixedly connected to the side wall of the synchronous control device (4), and the indicator device (6) includes tilt indicator lights (17) on both sides and two mutually symmetrical second trigger devices; The second triggering device comprises a triggering groove arranged on the outer wall of the box body, the inner bottom of the triggering groove is designed with a first angle control sliding groove (19), a first positive and negative conductive sheet (18) is arranged on one side of the triggering groove, a first steel ball (20) is arranged to roll in the first angle control sliding groove (19), and the design angles of the two mutually symmetrical first angle control sliding grooves (19) located on the outer side of the box body correspond to each other; The inclination angle of the first angle control chute (19) is smaller than the inclination angle of the second angle control chute (33), and when the smart shoulder pole is further tilted, the first trigger device can trigger the self-locking device (3) to work and lock the corresponding slide tube (1).

2. The intelligent shoulder pole for lifting with two machines according to claim 1 is characterized in that: Sliding tube positioning grooves are provided between the two fixed tubes (2) and the corresponding sliding tubes (1).

3. The intelligent shoulder pole for lifting with two machines according to claim 1 is characterized in that: A plurality of stiffening plates (10) are fixedly connected to the inner wall of the box body.

4. A method for using the smart shoulder pole for lifting two machines according to claim 1, comprising the following steps: S1: Two lifting machines lift the load at both ends of the smart shoulder pole and hang the load on the load lifting ears; S2: When the two lifting machines rotate at different speeds, tension is generated on both sides at the same time, which will pull the sliding pipes (1) on both sides to the sides at the same time, causing the smart shoulder pole to stretch. The sliding pipes (1) on both sides slide in the corresponding fixed pipes (2) to offset the corresponding tension and ensure that the force on both sides is uniform.

5. The method of use according to claim 4, wherein: An indicating device (6) is fixedly connected to the side wall of the synchronous control device (4); When the lifting speeds of the two lifting machines are different, there is a height difference between the two ends of the smart shoulder pole. When a certain angle is reached, the first steel ball (20) in the indicator device (6) will move to the first positive and negative conductive plates (18) in the corresponding direction, so that the tilt indicator light (17) in the direction lights up, and the indicator device (6) will flash to remind the lower side.

6. The method of use according to claim 4, wherein: A self-locking device (3) is provided on the side walls of the two fixed tubes (2); when the lifting speeds of the two lifting machines are different and there is a height difference between the two ends of the smart shoulder pole, when a certain angle is reached, the self-locking device (3) is activated, driving the self-locking rod (25) to enter the self-locking hole at the corresponding position and lock, and the smart shoulder pole is locked. When the smart shoulder pole returns to stability, the self-locking device (3) moves in the reverse direction and unlocks.

Images