Gantry hook device and casting crane

Abstract

The present application discloses a gantry hook device and a casting crane, wherein the gantry hook device includes a gantry hook assembly (10), a drive unit (20), a limiting mechanism (30) and a mounting seat (40), the gantry hook assembly includes a connecting plate (11), a gantry hook (12) and a rotating shaft (13) respectively fixed to the connecting plate, the gantry hook assembly is rotatably mounted on the mounting seat, the drive unit is used to drive the rotating shaft to rotate, and the limiting mechanism is installed on the mounting seat and is used to position the gantry hook assembly relative to the mounting seat after the gantry hook assembly is rotated into place. The present application can drive the rotating shaft by the drive unit, thereby driving the gantry hook to adjust its direction conveniently. After adjustment into place, the gantry hook assembly can be positioned relative to the mounting seat fixed to the main beam by the limiting mechanism to meet the requirement of being fixed relative to the main beam in the use state.

Description

Technical Field

[0001] The present application relates to the field of cranes, and more particularly to a gantry hook device and a casting crane. Background Art

[0002] Foundry cranes used in the metallurgical and steelmaking industries typically rely on the longitudinal and lateral movement of a trolley along the factory rails, as well as the lifting and lowering motion of a hook. These hooks are typically gantry hooks and must be fixed relative to the main beam of the foundry crane to comply with safety regulations. However, depending on the workstation requirements, the gantry hook may need to be perpendicular or parallel to the main beam. When the gantry hook is fixed to the main beam, two foundry cranes must be used in conjunction, which is inconvenient and costly.

[0003] Therefore, how to provide a gantry hook that is easy to adjust becomes a technical problem that needs to be solved in this field. Summary of the Invention

[0004] In view of this, the present application proposes a gantry hook device to facilitate the adjustment of the direction of the gantry hook while ensuring safe production.

[0005] According to the present application, a gantry hook device is proposed, wherein the gantry hook device includes a gantry hook assembly, a drive unit, a limiting mechanism and a mounting seat, the gantry hook assembly includes a connecting plate, a gantry hook and a rotating shaft respectively fixed to the connecting plate, the gantry hook assembly is rotatably mounted on the mounting seat, the drive unit is used to drive the rotating shaft to rotate, the limiting mechanism is installed on the mounting seat and is used to position the gantry hook assembly relative to the mounting seat after the gantry hook assembly is rotated into place.

[0006] Optionally, the limiting mechanism includes a limiting gear, a clamping head, and a pushing unit for pushing the clamping head to engage or release the teeth of the limiting gear, and the limiting gear is fixed to the rotating shaft.

[0007] Optionally, the pushing unit is configured to elastically push the chuck when the limiting gear and the chuck are released from engagement.

[0008] Optionally, the pushing unit includes a telescopic cylinder for pushing the chuck and a biasing member for biasing the chuck toward the limiting gear.

[0009] Optionally, the pushing unit includes a mounting frame mounted on the mounting seat, a slide, and a slide rod with two ends respectively fixed to the mounting frame and the mounting seat, the clamping head is fixed to the slide, and the slide is guided to slide by the slide rod.

[0010] Optionally, the gantry hook device includes a load-bearing plate fixed to the mounting seat, the load-bearing plate is provided with a slide groove, and the connecting plate is provided with a slider that cooperates with the slide groove, so that when the gantry hook assembly rotates, the slider slides along the slide groove and is carried by the slide groove.

[0011] Optionally, the gantry hook is fixed to the connecting plate in such a manner that the hook mouth direction of the gantry hook is adjustable.

[0012] Optionally, the gantry hook assembly includes a connecting sleeve mounted on the top end of the gantry hook, the outer periphery of the connecting sleeve is provided with a socket connected to the inner cavity of the connecting sleeve, the outer periphery of the part of the gantry hook mounted in the connecting sleeve is provided with at least two slots that can be aligned with the socket, and the connecting plate is installed with a connector that can be inserted into or exited from the slot through the socket.

[0013] Optionally, the gantry hook is provided with two slots distributed at 90 degrees.

[0014] The present application also provides a casting crane, wherein the casting crane includes a crane main beam, a connecting seat and the gantry hook device of the present application, the connecting seat is installed on the crane main beam, and the mounting seat is installed on the connecting seat.

[0015] According to the technical solution of the present application, the driving unit can drive the rotating shaft, thereby driving the gantry hook to easily adjust its direction. After adjustment, the gantry hook assembly can be positioned relative to the mounting base fixed to the main beam by the limiting mechanism to meet the requirement of being fixed relative to the main beam when in use.

[0016] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute part of this application, are used to provide a further understanding of the application, and the exemplary embodiments of the application and their descriptions are used to explain the application. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of a gantry hook installed on a main beam according to a preferred embodiment of the present application;

[0019] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle;

[0020] Figure 3 It is a schematic diagram showing the cooperation between the limiting gear and the clamping head of the limiting mechanism;

[0021] Figure 4 yes Figure 1 A partial enlarged view of point B in the middle;

[0022] Figure 5 It is a schematic diagram illustrating the adjustment of the hook mouth direction of the gantry hook. DETAILED DESCRIPTION

[0023] The technical solution of the present application will be described in detail below with reference to the accompanying drawings and in combination with the implementation methods.

[0024] According to one aspect of the present application, a gantry hook device is provided, wherein the gantry hook device includes a gantry hook assembly 10, a drive unit 20, a limiting mechanism 30 and a mounting seat 40, the gantry hook assembly 10 includes a connecting plate 11, a gantry hook 12 and a rotating shaft 13 respectively fixed to the connecting plate 11, the gantry hook assembly 10 is rotatably mounted on the mounting seat 40, the drive unit 20 is used to drive the rotating shaft 13 to rotate, and the limiting mechanism 30 is installed on the mounting seat 40 and is used to position the gantry hook assembly 10 relative to the mounting seat 40 after the gantry hook assembly 10 is rotated into place.

[0025] Using the gantry hook device of the present application, the driving unit 20 can drive the rotating shaft 13, thereby driving the gantry hook 12 to easily adjust its direction. After adjustment, the gantry hook assembly 10 can be positioned relative to the mounting base fixed to the crane main beam 60 by the limiting mechanism 30 to meet the requirement of being fixed relative to the crane main beam 60 when in use.

[0026] The driving unit 20 can be in various suitable forms to drive the rotating shaft 13 to rotate. For example, the driving unit 20 can include a motor 21, a first gear 22 mounted on the output shaft of the motor 21, and a second gear 23 meshing with the first gear 22 and fixed to the rotating shaft 13.

[0027] In order to obtain a stable structure, the connecting plate 11 and the mounting seat 40 can be arranged in a central position. The mounting seat 40 has an internal space and a bottom center through hole connected to the internal space to allow the rotating shaft 13 to extend into. The motor 21 can be arranged outside the mounting seat 40, and the side wall of the mounting seat 40 is provided with an avoidance hole allowing the first gear 22 and / or the second gear 23 to pass through.

[0028] In the present application, the limiting mechanism 30 can limit the position of appropriate components of the gantry hook assembly 10 (e.g., the connecting plate 11, the gantry hook 12, and the rotating shaft 13), thereby limiting the position of the entire assembly. Depending on the needs and the layout of the position to be limited, the limiting mechanism 30 can adopt various appropriate forms, as long as it can position the gantry hook assembly 10 after it is rotated into place.

[0029] In a preferred embodiment of the present application, Figures 1 to 3As shown, the limiting mechanism 30 may include a limiting gear 31, a clamping head 32, and a pushing unit for pushing the clamping head 32 to engage or release the teeth of the limiting gear 31. The limiting gear 31 is fixed to the rotating shaft 13. During use, when the gantry hook assembly 10 is rotated into position, the pushing unit can push the clamping head 32 to a position where the clamping head 32 engages with the teeth of the limiting gear 31, thereby limiting the rotation of the limiting gear 31 and the rotating shaft 13, thereby achieving the effect of limiting the rotation of the gantry hook assembly 10 (especially preventing the rotating shaft 13 from rotating due to accidental rotation of the motor 21).

[0030] The pushing unit can be in an appropriate form so as to be able to push the chuck 32 into a position meshed with the limit gear 31, thereby enabling the chuck 32 to reach a limited state meshed with the limit gear 31. In addition, the pushing unit can also drive the chuck 32 to a release state away from the limit gear 31, that is, the chuck 32 can be switched between the limited state and the release state by the operation of the pushing unit. For example, the pushing unit can be in a form that can be linearly extended (such as a telescopic cylinder, a push rod, etc.), so as to push the chuck 32 into a limited state meshed with the limit gear 31 by extending, and can drive the chuck 32 to a release state away from the limit gear 31 by retracting.

[0031] Preferably, in order to stably adjust the gantry hook assembly 10 when the limiting gear 31 and the clamping head 32 are disengaged, the pushing unit can be configured to elastically push the clamping head 32 in the disengaged state. That is, in the disengaged state (i.e., the position of the clamping head 32 is not completely restricted and can be easily disengaged even if it is engaged with the limiting gear 31), the clamping head 32 is always elastically pushed toward the limiting gear 31, so that when the rotating shaft 13 is rotated, the limiting gear 31 overcomes the resistance of the clamping head 32 and ejects the clamping head 32 outward while rotating to completely release the snap fit, and when the limiting gear 31 rotates one tooth, the clamping head 32 can be elastically pushed and automatically return to the limited state, that is, providing appropriate resistance to the limiting gear 31 during its rotation process, so that the rotation of the gantry hook assembly 10 is smooth and controllable.

[0032] In order to achieve stable limiting in the limiting state and elastic pushing in the releasing limiting state, the pushing unit may have a component capable of rigidly pushing against the clamp head 32 and a component capable of elastically pushing against the clamp head 32. Figure 2In the illustrated embodiment, the pushing unit includes a telescopic cylinder 33 for pushing against the chuck 32 and a biasing member 34 for biasing the chuck 32 toward the limit gear 31. The telescopic cylinder 33 is used to rigidly push against the chuck 32, extending to rigidly maintain the chuck 32 in a limited position, and retracting to disengage from the chuck 32 to release the rigid limit on the chuck 32 (i.e., placing the chuck 32 in a contact limited position). The biasing member 34 is capable of applying a biasing force to the chuck 32 toward the limit gear 31 in the released limit position, so that the chuck 32 provides resistance to the rotation of the limit gear 31.

[0033] When the rotating shaft 13 needs to be rotated to adjust the direction of the gantry hook assembly 10, the telescopic cylinder 33 is first retracted so that the telescopic cylinder 33 is out of contact with the clamping head 32. The clamping head 32 is in a released state but still maintains engagement with the limiting gear 31 through the biasing member 34. Subsequently, the rotating shaft 13 can be driven to rotate, and the limiting gear 31 overcomes the resistance of the clamping head 32 and pushes the clamping head 32 outward while rotating until the rotating shaft 13 is rotated into place. The clamping head 32 can be elastically pushed and automatically returns to the limited state meshed with the teeth. Finally, the telescopic cylinder 33 is extended and contacts the clamping head 32, providing a rigid limit for the clamping head 32.

[0034] In order to ensure the linear movement of the clamping head 32, a guide can be provided for the movement of the clamping head 32. Specifically, Figure 2 As shown, the pushing unit may include a mounting frame 35 mounted on the mounting seat 40, a slide 36, and a slide rod 37 whose two ends are respectively fixed to the mounting frame 35 and the mounting seat 40, the clamping head 32 is fixed to the slide 36, and the slide 36 is guided to slide by the slide rod 37.

[0035] In addition, the force of the telescopic cylinder 33 and the biasing member 34 can be applied to the clamping head 32 through the slide 36. Furthermore, the various components of the limiting mechanism 30 can be specifically arranged according to the positions of the relevant components. Specifically, the connecting plate 11 and the gantry hook 12 can be arranged below the mounting seat 40, the rotating shaft 13 can be inserted into the internal space of the mounting seat 40, the limiting gear 31 can be arranged in the internal space of the mounting seat 40, the mounting frame 35, the biasing member 34, and the telescopic cylinder 33 can be arranged outside the mounting seat 40, the mounting frame 35 can be fixed to the side wall of the mounting seat 40, and the side wall of the mounting seat 40 is provided with a through hole allowing the clamping head 32 to pass through. The biasing member 34 can include a spring, one end of the spring being connected to the outside of the mounting seat 40 and the other end being connected to the side of the slide 36 facing the mounting seat 40. The telescopic cylinder 33 is mounted on the mounting frame 35 and is configured to push against the other side of the slide 36.

[0036] In order to facilitate the biasing member 34 to provide a balanced biasing force, multiple springs can be provided, and the multiple springs can be evenly distributed around the clamping head 32. Preferably, multiple slide rods 37 can also be provided, and a spring is sleeved around each slide rod 37, so as to guide the movement of the clamping head 32 more stably while applying a balanced biasing force. In addition, the telescopic cylinder 33 can be configured to extend and retract towards the clamping head 32. Specifically, in Figure 2 In the preferred embodiment shown, the chuck 32 is arranged at the center of the slide 36, the telescopic cylinder 33 is telescoped toward the center of the slide 36, the slide rod 37 and multiple springs of the biasing member 34 are evenly distributed around the chuck 32, and the slide 36 is provided with multiple through holes around the center to allow the slide rod 37 to pass through.

[0037] The chuck 32 may include a chuck body 321 for engaging with the teeth of the limit gear 31 and a connecting rod 322 connecting the chuck body 321 and the slide 36. During movement of the chuck 32, the chuck body 321 always moves within the interior space of the mounting seat 40, with only the connecting rod 322 penetrating the sidewall of the mounting seat 40. This provides maximum protection for the chuck body 321, preventing it from being damaged by external factors that could affect its engagement with the limit gear 31. The chuck body 321 is shaped to engage with the teeth of the limit gear 31, for example, having an isosceles trapezoidal cross-section.

[0038] In the present application, to facilitate driving the rotating shaft 13, the gravity borne by the rotating shaft 13 should be reduced. To this end, the gantry hook device may include a bearing plate 50 fixed to the mounting seat 40. The bearing plate 50 is provided with a slide groove 51, and the connecting plate 11 is provided with a slider 111 that cooperates with the slide groove 51, so that when the gantry hook assembly 10 rotates, the slider 111 slides along the slide groove 51 and is loaded by the slide groove 51. By providing the bearing plate 50, the bearing plate 50 can bear most of the gravity load of the gantry hook assembly 10 through the cooperation of the slide groove 51 and the slider 111, thereby reducing the gravity borne by the rotating shaft 13 and facilitating the rotation of the rotating shaft 13. In addition, the slide groove 51 and the slider 111 can have appropriate structural forms so that they can cooperate with each other in a load-bearing manner while guiding the slider 111 through the slide groove 51. For example, the slide groove 51 can be a slide groove with a T-shaped cross section, and the slider 111 can be a slider with a corresponding T-shaped cross section.

[0039] The shape and position of the chute 51 should be configured to accommodate the trajectory of the slider 111 during the rotation of the gantry hook assembly 10. For example, at least two sliders 111 may be provided around the rotation center of the gantry hook assembly 10, and the chute 51 may include an arc shape corresponding to the range of movement of each slider 111. Alternatively, the chute 51 may be annular corresponding to the distribution circumference of the slider 111.

[0040] In addition, during use, it may be necessary to adjust the hook direction of the gantry hook 12, for example, Figure 1 The two hooks shown are both in the forward direction and are adjusted to the direction in which the hooks face each other. To this end, preferably, the gantry hook 12 is fixed to the connecting plate 11 in such a manner that the hook direction of the gantry hook 12 is adjustable, so that different hook direction settings can be accommodated by adjusting the fixed position of the gantry hook 12 relative to the connecting plate 11.

[0041] Among them, the gantry hook 12 can be set on the connecting plate 11 in various appropriate ways to achieve the adjustability of the hook mouth. In the preferred embodiment of the present application, Figure 1 、 Figure 4 and Figure 5 As shown, the gantry hook assembly 10 may include a connecting sleeve 14 that fits over the top of the gantry hook 12. The outer periphery of the connecting sleeve 14 is provided with a socket 141 that communicates with the inner cavity of the connecting sleeve 14. The outer periphery of the portion of the gantry hook 12 that fits within the connecting sleeve 14 is provided with at least two slots 121 that can align with the sockets 141. The adapter plate 11 is mounted with a connector 112 that can be inserted into and removed from the slots 121 through the sockets 141. During use, the gantry hook 12 is secured to the adapter plate 11 by inserting the connector 112 through the socket 141 into the slots 121. To adjust the hook opening, the connector 112 can be removed from the slots 121. The gantry hook 12 can then be rotated relative to the connecting sleeve 14 to adjust the hook opening. Once adjusted, another slot 121 is aligned with the socket 141. The gantry hook 12 can then be re-secured to the adapter plate 11 by reinserting the connector 12.

[0042] In order to facilitate observation of whether the slot 121 is aligned with the insertion hole 141 during operation, part of the outer wall of the connecting sleeve 14 can be configured to be hollow.

[0043] It can be understood that in order to achieve a stable connection between the gantry hook 12 and the connecting plate 11 through the connector 112, the part of the connector 112 that passes through the socket 141 and is inserted into the slot 121 should have a size corresponding to the socket 141 and the slot 121 to ensure a stable plug-in fit.

[0044] In the present application, the plugging and unplugging of the plug connector 112 can be realized by an appropriate method, for example, the plug connector 112 can be driven by a telescopic cylinder. Figure 4As shown, the connector 112 may include a fixing seat 112a, a bolt portion 112b, and a plug-in column 112c. The fixing seat 112a is fixed to the bottom of the connecting plate 11. The fixing seat 112a is provided with a screw hole that matches the thread of the bolt portion 112b. The plug-in column 112c is provided at the free end of the bolt portion 112b. When in use, the bolt portion 112b can be rotated by the head of the bolt portion 112b, so that the bolt portion 112b drives the plug-in column 112c to move and complete the insertion or extraction operation. Among them, corresponding connectors 112 can be provided for the two gantry hooks 12 respectively, and the two fixing seats 112a can be provided at a position between the two gantry hooks 12, so that the plug-in column 112c can be pulled out by rotating the two bolt portions 112b so that the two are close to each other, and the plug-in column 112c can be inserted by rotating the two bolt portions 112b so that the two are away from each other.

[0045] Since the hook mouth direction of the gantry hook 12 is usually Figure 1 The leading direction shown and the Figure 1 The direction shown is rotated 90 degrees to choose between the relative directions, in order to balance cost and efficiency, such as Figure 5 As shown, the gantry hook 12 is provided with two slots 121 distributed at 90 degrees. By selecting different slots 121 to insert the connector 112, it is convenient to switch between the direction of the hook mouth leading and the direction of the hook mouth relative.

[0046] According to another aspect of the present application, a casting crane is provided, wherein the casting crane includes a crane main beam 60, a connecting seat 70 and the gantry hook device of the present application, the connecting seat 70 is installed on the crane main beam 60, and the mounting seat 40 is installed on the connecting seat 70.

[0047] Using the casting crane of the present application, the driving unit 20 can drive the rotating shaft 13, thereby driving the gantry hook 12 to conveniently adjust its direction. After adjustment, the gantry hook assembly 10 can be positioned relative to the mounting base fixed to the crane main beam 60 by the limiting mechanism 30 to meet the requirement of being fixed relative to the crane main beam 60 when in use.

[0048] Therefore, the casting crane of the present application can move the molten iron ladle between workstations in different directions while meeting safety production regulations, and is suitable for metallurgical casting applications.

[0049] The connecting seat 70 can adopt an appropriate structure and be connected to the crane main beam 60 and the mounting seat 40 in an appropriate manner, which is not explained or limited in this application.

[0050] The preferred embodiments of the present application are described in detail above. However, the present application is not limited to the specific details of the above embodiments. Within the technical concept of the present application, various simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the scope of protection of the present application.

[0051] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner unless there is any contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.

[0052] In addition, the various implementation methods of the present application may be arbitrarily combined, and as long as they do not violate the concept of the present application, they should also be regarded as the contents disclosed in the present application.

Claims

1. A gantry hook device, characterized in that: The gantry hook device comprises a gantry hook assembly (10), a driving unit (20), a limiting mechanism (30) and a mounting seat (40); the gantry hook assembly (10) comprises a connecting plate (11), a gantry hook (12) and a rotating shaft (13) respectively fixed to the connecting plate (11); the gantry hook assembly (10) is rotatably mounted on the mounting seat (40); the driving unit (20) is used to drive the rotating shaft (13) to rotate; the limiting mechanism (30) is mounted on the mounting seat (40) and is used to position the gantry hook assembly (10) relative to the mounting seat (40) after the gantry hook assembly (10) is rotated into position; The limiting mechanism (30) comprises a limiting gear (31), a clamping head (32), and a pushing unit for pushing the clamping head (32) to engage or release the teeth of the limiting gear (31), and the limiting gear (31) is fixed to the rotating shaft (13); The pushing unit is configured to elastically push the clamping head (32) when the limiting gear (31) and the clamping head (32) are in a state of being released from engagement; The pushing unit comprises a telescopic cylinder (33) for pushing the clamp (32) and a biasing member (34) for biasing the clamp (32) toward the limiting gear (31); The gantry hook device comprises a bearing plate (50) fixed to the mounting seat (40), the bearing plate (50) being provided with a slide groove (51), and the connecting plate (11) being provided with a slider (111) cooperating with the slide groove (51), so that when the gantry hook assembly (10) rotates, the slider (111) slides along the slide groove (51) and is loaded by the slide groove (51); The pushing unit comprises a mounting frame (35) mounted on the mounting seat (40), a slide plate (36), and a slide bar (37) with two ends respectively fixed to the mounting frame (35) and the mounting seat (40), the clamping head (32) is fixed to the slide plate (36), and the slide plate (36) is guided to slide by the slide bar (37).

2. The gantry hook device according to claim 1, characterized in that: The gantry hook (12) is fixed to the connecting plate (11) in such a manner that the hook mouth direction of the gantry hook (12) is adjustable.

3. The gantry hook device according to claim 2, characterized in that: The gantry hook assembly (10) comprises a connecting sleeve (14) sleeved on the top end of the gantry hook (12); a socket (141) communicating with an inner cavity of the connecting sleeve (14) is provided on the outer periphery of the connecting sleeve (14); at least two slots (121) capable of being aligned with the socket (141) are provided on the outer periphery of a portion of the gantry hook (12) sleeved in the connecting sleeve (14); and a connector (112) capable of being inserted into or withdrawn from the slot (121) through the socket (141) is installed on the connecting plate (11).

4. The gantry hook device according to claim 3, characterized in that: The gantry hook (12) is provided with two slots (121) distributed at 90 degrees.

5. A casting crane, characterized in that: The casting crane comprises a crane main beam (60), a connecting seat (70) and a gantry hook device according to any one of claims 1 to 4, wherein the connecting seat (70) is mounted on the crane main beam (60), and the mounting seat (40) is mounted on the connecting seat (70).

Images