Container portal crane sling rotating device

Abstract

The utility model relates to the technical field of lifting appliances, in particular to a lifting appliance rotating device of a container portal crane, which comprises a connecting seat and a rotating seat, the rotating seat is sleeved on the connecting seat, the connecting seat and the rotating seat are connected through a rotary support, a connecting disc is arranged on the connecting seat, and three mounting seats are uniformly distributed on the circumferential side wall of the connecting disc. The three mounting seats are respectively provided with a driving mechanism, a braking mechanism and a locking mechanism, and the connecting disc is connected with the inner ring of the rotary support. According to the utility model, the rotation of the rotating seat relative to the connecting seat is realized through the arranged driving mechanism so as to realize the rotation of the lifting appliance, the braking mechanism reduces the rotating speed of the rotating seat through the friction between the braking seat and the upper flange, and meanwhile, the locking rod of the locking mechanism is inserted into the locking hole of the upper flange so as to brake and lock the rotation of the rotating seat; the impact of the rotating inertia of the rotating seat on the rotary support, the driving gear and the driving motor is effectively reduced, damage is avoided, the service cycle is prolonged, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, in particular to a sling rotating device for a container gantry crane. Background Art

[0002] With the development of the current logistics industry, container gantry cranes are widely used in container terminals, railway freight stations, and storage yards to achieve tasks such as container loading and unloading, handling, and stacking, and are lifted by slings.

[0003] A Chinese utility model patent (authorization announcement number: CN219929442U) discloses an automatic rotation device for a container gantry crane spreader, comprising a mounting seat, a connecting frame is provided on one side of the mounting seat, a lifting ring is provided on one end of the connecting frame, a rotating shaft is rotatably installed on the other side of the mounting seat, a spreader seat is installed on one end of the rotating shaft, a supporting structure is provided on the other end of the rotating shaft, and a guide structure is provided on the side of the mounting seat. This technical solution connects the rotating shaft and the spreader seat through the mounting seat, and in combination with the supporting structure and the guiding structure, it can drive and control automatic rotation, so as to adjust the angle position during lifting, but after the adjustment is in place, the motor stops working, and the hoisted object still keeps rotating under the action of inertia, generating an inertial rotation tendency force, which will continue to apply force to the rotating shaft after the motor stops, thereby causing inertial impact on the support plate and the motor, and severely causing damage to the gear ring of the support plate and the motor, etc., shortening the service life of the rotating device and increasing the use cost.

[0004] Therefore, it is necessary to propose a container gantry crane spreader rotating device to overcome the defects of the prior art. Utility Model Content

[0005] The utility model aims to solve the problems in the prior art and provides a container gantry crane hoist rotating device.

[0006] The technical solution of the utility model is:

[0007] A container gantry crane hoist rotating device comprises a connecting seat and a rotating seat. The rotating seat is mounted on the connecting seat. The connecting seat and the rotating seat are connected through a slewing support. A connecting plate is arranged on the connecting seat. Three mounting seats are evenly arranged on the circumferential side wall of the connecting plate. A driving mechanism, a braking mechanism and a locking mechanism are respectively arranged on the three mounting seats. The connecting plate is connected to the inner ring of the slewing support.

[0008] Preferably, the driving mechanism comprises a driving motor and a driving gear, wherein the driving gear is fixedly arranged on the output shaft of the driving motor, and the driving gear is meshed with the tooth profile of the outer ring of the slewing support.

[0009] Preferably, the braking mechanism includes a first actuator, a first guide seat and a brake seat, the fixed end of the first actuator is arranged on a side corresponding to the mounting seat, the first guide seat is arranged on a side of the mounting seat facing away from the first actuator, the upper end of the brake seat is slidably arranged in the first guide seat and is connected to the protruding end of the first actuator, and a friction pad is arranged at the lower end of the brake seat located outside the first guide seat.

[0010] Preferably, the locking mechanism includes a second actuator, a second guide seat and a locking rod, the fixed end of the second actuator is arranged on a side corresponding to the mounting seat, the second guide seat is arranged on the side of the mounting seat facing away from the second actuator, the upper end of the locking rod is upwardly inserted and connected in the second guide seat, and is connected to the protruding end of the second actuator, and the end of the locking rod away from the second actuator is set to be conical.

[0011] Preferably, the rotating seat includes an upper flange, an intermediate column and a lower flange which are integrally arranged, the upper flange is connected to the outer ring of the slewing support, a plurality of locking holes are evenly distributed along the circumferential direction on the surface of the upper flange, a connecting shaft is arranged on the connecting seat below the connecting plate, and at least one set of bearings is arranged between the intermediate column and the connecting shaft.

[0012] Preferably, a baffle is detachably provided at the end of the connecting shaft.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a driving mechanism in which a driving motor drives a slewing support via a driving gear to realize rotation of a slewing seat relative to a connecting seat, thereby realizing rotation of the hanger; a braking mechanism reduces rotation speed of the slewing seat via friction between the braking seat and an upper flange; at the same time, a locking rod of the locking mechanism is inserted into a locking hole of the upper flange to brake and lock the rotation of the slewing seat, thereby effectively reducing impact of rotation inertia of the slewing seat on the slewing support, driving gear and driving motor, avoiding damage, increasing service life and reducing use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the AA cross-sectional structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the BB cross-sectional structure of the utility model.

[0019] Among them, 1. connecting seat; 2. rotating seat; 21. upper flange; 22. middle column; 23. lower flange; 24. locking hole; 3. connecting plate; 4. mounting seat; 5. slewing support; 6. driving motor; 7. driving gear; 8. first actuator; 9. first guide seat; 10. brake seat; 11. friction pad; 12. second actuator; 13. second guide seat; 14. locking rod; 15. connecting shaft; 16. bearing; 17. baffle. DETAILED DESCRIPTION

[0020] In order to make the technical means, technical features, utility model objectives and technical effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific illustrations.

[0021] like Figure 1-Figure 4 As shown, a container gantry crane spreader rotation device comprises a connecting seat 1, a rotating seat 2, a slewing support 5, a driving mechanism, a braking mechanism and a locking mechanism. The slewing seat 2 is mounted on the connecting seat 1, and the connecting seat 1 is connected to the crane body (not shown in the figure). The spreader (not shown in the figure) is installed on the slewing seat 2 to realize the rotation of the spreader. The connecting seat 1 and the slewing seat 2 are connected through the slewing support 5. Specifically, the inner ring of the slewing support 5 is connected to the connecting seat 1, and the outer ring of the slewing support 5 is connected to the slewing seat 2. A connecting disk 3 is integrally fixed on the connecting seat 1. The connecting seat 1 is connected to the inner ring of the slewing support 5 through the connecting disk 3. Three mounting seats 4 are processed on the circumferential side wall of the connecting disk 3. The three mounting seats 4 are evenly distributed. The driving mechanism, the braking mechanism and the locking mechanism are respectively installed on the three mounting seats 4 in a one-to-one correspondence. The driving mechanism is used to drive the slewing support 5 to rotate, thereby driving the slewing seat 2 to rotate relative to the connecting seat 1. The braking mechanism is used to realize the deceleration braking of the slewing seat 2. The locking mechanism is used to lock the relative position between the slewing seat 2 and the connecting seat 1.

[0022] like Figure 3 and Figure 4As shown, a connecting shaft 15 is integrally processed on the connecting seat 1 and located below the connecting plate 3, which is used for the installation and connection of the rotating seat 2. The rotating seat 2 includes an upper flange 21, an intermediate column 22 and a lower flange 23. The upper flange 21, the intermediate column 22 and the lower flange 23 are integrally processed to ensure the overall strength. The rotating seat 2 is connected to the outer ring of the slewing support 5 through the upper flange 21. A plurality of locking holes 24 are processed on the surface of the upper flange 21. The plurality of locking holes 24 are evenly distributed around the circumference with the axis of the rotating seat 2 as the center. The relative position is locked by cooperating with the locking holes 24 and the locking mechanism. A bearing 16 is installed between the intermediate column 22 and the connecting shaft 15. The number of bearings 16 is at least one group. The bearing 16 reduces the friction of relative rotation between the connecting seat 1 and the rotating seat 2, and ensures the accuracy of the rotation of the rotating seat 2. A baffle 17 is installed at the end of the connecting shaft 15. The baffle 17 is detachably connected to the connecting shaft 15 by thread or bolt connection.

[0023] like Figure 1 , Figure 3 and Figure 4 As shown, the driving mechanism includes a driving motor 6 and a driving gear 7. The driving motor 6 is mounted on a mounting seat 4 corresponding to the driving mechanism. The driving gear 7 is fixedly mounted on the output shaft of the driving motor 6. The driving gear 7 is meshed with the tooth profile of the outer ring of the slewing support 5. The driving motor 6 drives the outer ring of the slewing support 5 to rotate through the driving gear 7, thereby driving the rotating seat 2 connected to the outer ring of the slewing support 5 to rotate.

[0024] like Figure 1 and Figure 3 As shown, the brake mechanism includes a first actuator 8, a first guide seat 9 and a brake seat 10. The fixed end of the first actuator 8 is installed on one side of the mounting seat 4 corresponding to the brake mechanism. The first guide seat 9 is installed on the side of the mounting seat 4 facing away from the first actuator 8. The upper end of the brake seat 10 is inserted upward into the first guide seat 9 and is connected to the protruding end of the first actuator 8. Under the action of the first actuator 8, the first guide seat 9 is realized to slide. A friction pad 11 is installed at the lower end of the brake seat 10 located outside the first guide seat 9. The first actuator 8 drives the brake seat 10 to move downward, so that the friction pad 11 is The rubbing pad 11 is in contact with the surface of the upper flange 21, and the rotation speed of the rotating seat 2 is reduced by the friction between the friction pad 11 and the surface of the upper flange 21, thereby braking the rotating seat 2. A groove or pattern can be processed on the surface of the friction pad 11 facing the upper flange 21 to increase the friction between the friction pad 11 and the upper flange 21 and enhance the braking effect. When the brake seat 10 is driven to extend downward, the upper end portion of the brake seat 10 is still in the first guide seat 9, and the first guide seat 9 bears the reaction force generated by the friction, thereby avoiding force damage to the first actuator 8 and extending the service life of the first actuator 8.

[0025] like Figure 1 and Figure 4As shown, the locking mechanism includes a second actuator 12, a second guide seat 13 and a locking rod 14. The fixed end of the second actuator 12 is mounted on one side of the mounting seat 4 corresponding to the locking mechanism. The second guide seat 13 is mounted on the side of the mounting seat 4 facing away from the second actuator 12. The upper end of the locking rod 14 is inserted upwardly into the second guide seat 13 and connected to the protruding end of the second actuator 12. The second actuator 12 drives the locking rod 14 to slide in the second guide seat 13, so that the locking rod 14 can be extended to the second guide seat 13. The seat 13 is inserted into the corresponding locking hole 24 to achieve locking of the relative position of the connecting seat 1 and the rotating seat 2 to avoid rotational inertia. When the locking rod 14 is extended, the upper part of the locking rod 14 is still in the second guide seat 13, and the second guide seat 13 bears the force generated during the insertion connection to avoid the second actuator 12 being subjected to force and extend the service life of the second actuator 12. The end of the locking rod 14 away from the second actuator 12 is processed into a conical structure to facilitate the insertion and connection of the locking rod 14 and the locking hole 24.

[0026] The first actuator 8 and the second actuator 12 are air cylinders, oil cylinders or electric push rods, which are flexible in form, easy to maintain and replace, and have low cost.

[0027] The working principle of the utility model is:

[0028] When in use, the upper end of the connecting seat 1 is connected to the crane body, the sling is connected to the lower flange 23, the driving motor 6 is started, and the driving motor 6 drives the driving gear 7. Through the meshing of the driving gear 7 and the outer ring of the slewing support 5, the rotating seat 2 is driven to rotate, thereby realizing the rotation of the sling. When the rotation is in place, the driving motor 6 stops, the first actuator 8 extends, and the brake seat 10 moves downward, so that the friction pad 11 is in contact with the surface of the upper flange 21. The friction braking between the friction pad 11 and the upper flange 21 reduces the rotation speed of the slewing seat 2. At the same time, the second actuator 12 drives the locking rod 14 to extend, and the locking rod 14 is inserted into the locking hole 24, thereby forcibly locking the position between the connecting seat 1 and the slewing seat 2 to prevent inertia from causing impact on the slewing support 5, the driving gear 7 and the driving motor 6.

[0029] The above description is only a preferred embodiment of the utility model, and is not intended to limit the scope of implementation of the utility model. That is, all equivalent changes and modifications made according to the content of the patent application scope of the utility model should belong to the technical scope of the utility model.

Claims

1. A container gantry crane spreader rotating device, comprising a connecting seat (1) and a rotating seat (2), wherein the rotating seat (2) is sleeved on the connecting seat (1), and the connecting seat (1) and the rotating seat (2) are connected via a slewing support (5), characterized in that: A connecting disc (3) is arranged on the connecting seat (1), three mounting seats (4) are evenly arranged on the circumferential side wall of the connecting disc (3), a driving mechanism, a braking mechanism and a locking mechanism are respectively arranged on the three mounting seats (4), and the connecting disc (3) is connected to the inner ring of the slewing support (5).

2. The container gantry crane spreader rotating device according to claim 1, characterized in that: The driving mechanism comprises a driving motor (6) and a driving gear (7); the driving gear (7) is fixedly arranged on an output shaft of the driving motor (6); and the driving gear (7) meshes with the teeth of an outer ring of the slewing support (5).

3. The container gantry crane spreader rotating device according to claim 1, characterized in that: The braking mechanism comprises a first actuator (8), a first guide seat (9) and a brake seat (10); the fixed end of the first actuator (8) is arranged on a side corresponding to the mounting seat (4); the first guide seat (9) is arranged on a side of the mounting seat (4) facing away from the first actuator (8); the upper end of the brake seat (10) is slidably arranged in the first guide seat (9) and is connected to the protruding end of the first actuator (8); and a friction pad (11) is arranged at the lower end of the brake seat (10) located outside the first guide seat (9).

4. The container gantry crane spreader rotating device according to claim 1, characterized in that: The locking mechanism comprises a second actuator (12), a second guide seat (13) and a locking rod (14); the fixed end of the second actuator (12) is arranged on a side corresponding to the mounting seat (4); the second guide seat (13) is arranged on a side of the mounting seat (4) facing away from the second actuator (12); the upper end of the locking rod (14) is inserted upwardly into the second guide seat (13) and connected to the protruding end of the second actuator (12); and the end of the locking rod (14) away from the second actuator (12) is arranged to be conical.

5. The container gantry crane spreader rotating device according to claim 1, characterized in that: The rotating seat (2) comprises an upper flange (21), an intermediate column (22) and a lower flange (23) which are integrally arranged, the upper flange (21) being connected to the outer ring of the slewing support (5), a plurality of locking holes (24) being evenly distributed along the circumferential direction on the surface of the upper flange (21), the connecting seat (1) being provided with a connecting shaft (15) below the connecting plate (3), and at least one set of bearings (16) being provided between the intermediate column (22) and the connecting shaft (15).

6. The container gantry crane spreader rotating device according to claim 5, characterized in that: A baffle (17) is detachably provided at the end of the connecting shaft (15).

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