Coupler lifting device

Abstract

The utility model belongs to the field of coupler installation, and discloses a coupler lifting device which comprises a fixing frame, a first installation rod and a second installation rod, the fixing frame is connected with a sliding block, the sliding block is connected with an electric lifting device, and the first installation rod and the second installation rod are connected with a first fixing disc and a second fixing disc respectively. The first fixing disc and the second fixing disc are connected with a first bearing rod and a second bearing rod correspondingly, the first mounting rod is rotationally connected with an adjusting threaded rod, the first mounting rod and the second mounting rod are connected with clamping devices correspondingly, and each clamping device comprises a first rotating rod and a second rotating rod; the first rotating rod and the second rotating rod are respectively hinged with the first mounting rod, the first rotating rod and the second rotating rod are respectively hinged with a first clamping plate and a second clamping plate, and the first clamping plate is hinged with the second clamping plate; according to the technical scheme, the stability of the coupling is greatly improved, meanwhile, couplings of different sizes can be conveniently lifted, and the practicability is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of coupling installation, especially a coupling lifting device. BACKGROUND

[0002] A coupling is a device used to connect two rotating shafts, and its main function is to transmit torque and motion. In a mechanical transmission system, the coupling plays a crucial role in compensating for the relative displacement between shafts, absorbing vibrations, and buffering and damping, thereby ensuring the stable operation of mechanical equipment. In the use of some large equipment, the volume and weight of the coupling may be large, and some couplings even weigh up to 80 kg. Therefore, when installing or replacing and maintaining the coupling, a lifting device is needed to assist the workers in moving the coupling, or hoisting the coupling, and adjusting the position and angle of the coupling.

[0003] However, most of the lifting devices currently used are still hoisted by ropes, that is, the ropes are tied to the coupling, and then the hoisting is completed by winding the ropes with an electric lifting device. For example, the coupling lifting device disclosed in Chinese Utility Model (Publication No. CN209872154U) adopts this method. However, this method has the following technical problems in actual use: the coupling cannot be fixed in the horizontal direction by the rope tying method, which may cause the coupling to tilt and fall during hoisting, resulting in safety hazards, inconvenience in use, and poor practicability. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims to provide a coupling lifting device to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a kind of coupling lifting device, including fixed frame, first installation rod and second installation rod, the fixed frame is connected with slider, the slider is connected with electric lifting device, the electric lifting device is connected with main sling, the first installation rod and second installation rod are connected with first fixed disc and second fixed disc respectively, the first fixed disc and second fixed disc are connected with first bearing bar and second bearing bar respectively, the second bearing bar is equipped with receiving groove, the first bearing bar is slidably connected with receiving groove, the first installation rod is rotatably connected with adjusting screw rod, the adjusting screw rod is threadedly connected with second installation rod, the first installation rod and second installation rod are connected with clamping device respectively, the clamping device includes first rotating rod and second rotating rod, the first rotating rod and second rotating rod are hingedly connected with first installation rod respectively, the first rotating rod and second rotating rod are hingedly connected with first clamping plate and second clamping plate respectively, the first clamping plate and second clamping plate are hinged, the clamping device is connected with second installation rod in the same way as the connection mode of first installation rod, the first installation rod and second installation rod are connected with auxiliary sling respectively, the auxiliary sling is connected with main sling, the fixed frame is connected with base.

[0007] Preferably, the fixed frame is rotatably connected with displacement screw rod, the fixed frame is connected with servo motor, the output shaft of servo motor is connected with displacement screw rod, the slider is threadedly connected with displacement screw rod.

[0008] Preferably, the base and fixed frame are jointly connected with triangular reinforcing frame, the fixed frame is provided with mounting hole.

[0009] Preferably, the first installation rod and second installation rod are respectively provided with lifting buckle, the longitudinal section of lifting buckle is in the shape of n, and the auxiliary sling is connected with the lifting buckle.

[0010] Preferably, the first fixed disc and second fixed disc are respectively connected with a plurality of groups of first bearing bar and second bearing bar.

[0011] Compared with the prior art, the technical scheme has the beneficial effects that:

[0012] (1) The technical scheme clamps the shaft coupling through the clamping device, and is provided with a first rotating rod, a second rotating rod, a first clamping plate and a second clamping plate and the like, and the connecting structure is reasonably arranged, so that the heavier the object hoisted is, the greater the clamping force of the clamping device on the shaft coupling is; the clamping device is made of rigid material, hoisting stability is improved, and the situation that the shaft coupling inclines and falls during hoisting is avoided; two sets of clamping devices are arranged to clamp the two ends of the shaft coupling at the same time, so that the situation that the shaft coupling inclines and falls during hoisting is further avoided; the two sets of clamping devices form a whole through the first mounting rod and the second mounting rod, the stability of the clamping device during use is greatly improved, and the stress during hoisting is uniform; the distance between the two sets of clamping devices can be adjusted through the arrangement of the first mounting rod, the second mounting rod and the adjusting threaded rod, so that the shaft couplings of different sizes can be clamped, the shaft couplings of different sizes can be clamped and hoisted while ensuring that the two sets of clamping devices can be used stably as a whole, and the practicability of the device is greatly improved.

[0013] (2) The position of the electric hoist can be adjusted through the displacement threaded rod, so that the electric hoist can always be located between the two sets of clamping devices, the uniform stress of the two sets of auxiliary hoisting ropes is ensured, the hoisting stability is further improved, and the position of the hoisted shaft coupling can be adjusted through the displacement threaded rod, so that the use effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of the utility model;

[0015] Figure 2 It is a structure schematic view of the clamping device provided by the utility model;

[0016] Figure 3 It is a side view of the clamping device provided by the utility model;

[0017] Figure 4 It is a side view of the sliding block of the utility model;

[0018] Figure 5 It is a side view of the first fixed disc provided by the utility model;

[0019] The drawings show that: the fixed frame 1, the displacement threaded rod 2, the sliding block 3, the electric hoisting device 4, the servo motor 5, the main hoisting rope 6, the first mounting rod 7, the clamping device 8, the first rotating rod 81, the second rotating rod 82, the first clamping plate 83, the second clamping plate 84, the first fixed disc 9, the first bearing rod 10, the adjusting threaded rod 11, the storage groove 12, the second bearing rod 13, the second mounting rod 14, the hoisting buckle 15, the triangular reinforcing frame 16, the base 17, the auxiliary hoisting rope 18, the mounting hole 19, the second fixed disc 20. DETAILED DESCRIPTION

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0021] like Figure 1 To the diagram Figure 5 The coupling lifting device shown includes a fixed frame 1, a first mounting rod 7, and a second mounting rod 14. A slider 3 is slidably connected to the fixed frame 1, and an electric lifting device 4 is connected to the slider 3. A displacement threaded rod is rotatably connected to the fixed frame 1. A servo motor 5 is connected to the fixed frame 1, and the output shaft of the servo motor 5 is connected to the displacement threaded rod. The slider 3 is threadedly connected to the displacement threaded rod and slidably connected to the fixed frame 1. The fixed frame 1 can limit the rotation of the slider 3, so the slider 3 can move left or right along the displacement threaded rod as it rotates. The displacement threaded rod does not bear the weight of the slider 3. To better enable the displacement threaded rod... The sliding block 3 is moved by the displacement threaded rod. The sliding block 3 and the fixed frame 1 can be set to a smooth contact to reduce friction between them. Furthermore, the sliding block 3 is connected to a roller, which abuts against the fixed frame 1, further reducing friction and allowing the displacement threaded rod to better drive the sliding block 3. The electric lifting device 4 is connected to the main lifting rope 6. The electric lifting device 4 is a rope electric winding device, the structure of which and its operating principle are known to those skilled in the art and will not be described in detail here. The first mounting rod 7 and the second mounting rod 14 are respectively connected to the first fixed disc 9 and the second fixed disc 20. The first fixed disc 9 and the second fixed disc 20 are respectively connected to the first bearing rod 10 and the second bearing rod 13. The second bearing rod 13 is provided with a storage groove 12. The first bearing rod 10 is slidably connected to the storage groove 12. The first mounting rod 7 is rotatably connected to the adjusting threaded rod 11. The adjusting threaded rod 11 is rotatably connected to the first mounting rod 7 through multiple sets of bearings. The adjusting threaded rod 11 is threadedly connected to the second mounting rod 14. The first mounting rod 7 and the second mounting rod 14 are respectively connected to the clamping device 8. The clamping device 8 includes a first rotating rod 81 and a second rotating rod 82. The first rotating rod 81 and the second rotating rod 82 are respectively hinged to the first mounting rod 7. The first clamping plate 83 and the second clamping plate 84 are respectively hinged to the rotating rod 81 and the second rotating rod 82. The first clamping plate 83 and the second clamping plate 84 are hinged together. The connection method between the clamping device 8 and the second mounting rod 14 is the same as the connection method between the first mounting rod 7. The first mounting rod 7 and the second mounting rod 14 are respectively connected to the auxiliary lifting rope 18. The auxiliary lifting rope 18 is connected to the main lifting rope 6. The fixed frame 1 is connected to the base 17. The base 17 and the fixed frame 1 are connected to the triangular reinforcement frame 16. The fixed frame 1 is provided with mounting holes 19. The fixed frame 1 can be fixed to a vertical wall or device through the mounting holes 19, which further improves the stability of the fixed frame 1 during use.

[0022] The first mounting rod 7 and the second mounting rod 14 are respectively provided with a lifting buckle 15 in longitudinal section in the shape of a V, the clamping device 8 is located in the middle of the lifting buckle 15, thereby improving the stability of the device lifting, the auxiliary hoisting rope 18 is connected with the lifting buckle 15, the first fixed disc 9 and the second fixed disc 20 are respectively connected with a plurality of groups of first bearing rods 10 and second bearing rods 13, the plurality of groups of first bearing rods 10 and second bearing rods 13 are matched one by one, and the plurality of groups of first bearing rods 10 are evenly arranged along the annular first fixed disc 9.

[0023] As shown in Figure 1 , when it is needed to adjust the distance between the two groups of clamping devices 8, the adjusting screw rod 11 is screwed, thereby driving the first mounting rod 7 to move left to approach the second mounting rod 14, and at the same time, the right end of the first bearing rod 10 is further received into the receiving groove 12, so as to complete the adjustment of the distance between the two groups of clamping devices 8, and the reverse adjustment is the same; in the structure, the adjusting screw rod only limits the left and right movement of the first mounting rod 7 relative to the second mounting rod 14, and the horizontal force between the first mounting rod 7 and the second mounting rod 14 during the lifting process will not be large, and the adjusting screw rod 11 is sufficient to support, and the bending strength between the first mounting rod 7 and the second mounting rod 14 during the lifting process is realized by the first bearing rod 10 and the second bearing rod 13, so as to ensure the stability of the structure in use.

[0024] As shown in Figure 2 and Figure 3 , the first rotating rod 81, the second rotating rod 82, the first clamping plate 83 and the second clamping plate 84 form a parallelogram, when the first mounting rod 7 moves up, due to the action of the gravity of the first rotating rod 81, the second rotating rod 82, the first clamping plate 83 and the second clamping plate 84, the inner angle of the parallelogram will change, thereby making the first clamping plate 83 and the second clamping plate 84 rotate to complete the clamping of the shaft coupling, so that the clamping device 8 can also clamp the shaft coupling with different diameters, and the clamping is stable.

[0025] The specific implementation process is as follows:

[0026] When in use, the device is installed at the coupling to be lifted, the distance between the two sets of clamping devices 8 is adjusted according to the length of the coupling to be lifted, so that the two sets of clamping devices 8 can clamp the two ends of the coupling as much as possible, at the same time, the servo motor 5 is started to adjust the position of the sliding block 3, so that the midpoint of the connecting line between the main hoisting rope 6 and the two sets of clamping devices 8 and the midpoint of the coupling are located on the same vertical line, to ensure the stability of lifting, then the clamping device 8 is lowered, so that the first clamping plate 83 and the second clamping plate 84 are located at the front side and the rear side of the coupling respectively, then the electric lifting device 4 is started to drive the lifting device to drive the first mounting rod 7 and the second mounting rod 14 to move upwards, with the upward movement of the first mounting rod 7 and the second mounting rod 14, the first clamping plate 83 and the second clamping plate 84 rotate to complete the clamping of the coupling, the first mounting rod 7 and the second mounting rod 14 continue to move upwards, thereby the coupling can be driven to move upwards, the lifting of the coupling is completed, after the coupling is lifted, the motor can be started again to drive the sliding block 3 to move, thereby the position of the coupling is adjusted, after the coupling is lifted, it is also convenient to adjust the horizontal angle of the coupling, a worker can push it, thereby the lifting and position adjustment of the coupling are completed.

[0027] The above is only an embodiment of the present application, and the specific technical solutions and / or common knowledge of characteristics in the scheme are not described in detail. It should be noted that for those skilled in the art, without departing from the technical scheme of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A coupling lifting device, characterized by: The utility model provides a kind of lifting device, including fixed frame (1), first mounting rod (7) and second mounting rod (14), the fixed frame (1) is connected with slider (3), the slider (3) is connected with electric lifting device (4), the electric lifting device (4) is connected with main sling (6), first mounting rod (7) and second mounting rod (14) are connected with first fixed disc (9) and second fixed disc (20) respectively, first fixed disc (9) and second fixed disc (20) are connected with first bearing rod (10) and second bearing rod (13) respectively, second bearing rod (13) is equipped with receiving groove (12), first bearing rod (10) is slidably connected with receiving groove (12), first mounting rod (7) is rotatably connected with adjusting threaded rod (11), adjusting threaded rod (11) is threadedly connected with second mounting rod (14), first mounting rod (7) and second mounting rod (14) are connected with clamping device respectively, the clamping device includes first rotating rod (81) and second rotating rod (82), first rotating rod (81) and second rotating rod (82) are hingedly connected with first mounting rod (7) respectively, first rotating rod (81) and second rotating rod (82) are hingedly connected with first clamping plate (83) and second clamping plate (84) respectively, first clamping plate (83) and second clamping plate (84) are hingedly connected, the connection mode of clamping device (8) with second mounting rod (14) is same with the connection mode of first mounting rod (7), first mounting rod (7) and second mounting rod (14) are connected with auxiliary sling (18) respectively, auxiliary sling (18) is connected with main sling (6), the fixed frame (1) is connected with base (17).

2. A shaft coupling lifting device as claimed in claim 1, wherein: The fixed frame (1) is rotatably connected with displacement threaded rod (2), the fixed frame (1) is connected with servo motor (5), the output shaft of servo motor (5) is connected with displacement threaded rod (2), the slider (3) is threadedly connected with displacement threaded rod (2).

3. A shaft coupling lifting device as claimed in claim 1, wherein: The base (17) and the fixed frame (1) are commonly connected with triangular reinforcing frame (16), and the fixed frame (1) is provided with mounting hole (19).

4. A shaft coupling lifting device as claimed in claim 1, wherein: The first mounting rod (7) and the second mounting rod (14) are respectively provided with lifting buckle (15), the longitudinal section of the lifting buckle (15) is in the shape of a n, and the auxiliary sling (18) is connected with the lifting buckle (15).

5. A shaft coupling lifting device as claimed in claim 1, wherein: The first fixed disc (9) and the second fixed disc (20) are respectively connected with a plurality of groups of the first bearing rod (10) and the second bearing rod (13).

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