CN115744570A - Gantry hook device and casting crane - Google Patents

Abstract

The application discloses gantry hook device and foundry crane, wherein, gantry hook device includes gantry hook subassembly (10), drive unit (20), stop gear (30) and mount pad (40), and gantry hook subassembly includes linking up board (11), is fixed in gantry hook (12) and pivot (13) of linking up the board respectively, and gantry hook subassembly rotationally installs in the mount pad, and drive unit is used for driving the pivot to rotate, and stop gear installs in the mount pad and is used for making gantry hook subassembly fix a position for the mount pad after gantry hook subassembly rotates to target in place. This application can pass through drive unit drive pivot to drive the gantry hook and conveniently adjust the direction. After the gantry hook assembly is adjusted in place, the gantry hook assembly can be positioned relative to the mounting seat fixed with the main beam through the limiting mechanism, so that the requirement of being fixed relative to the main beam in a use state is met.

Description

Gantry hook device and casting crane

Technical Field

The application relates to the field of cranes, in particular to a gantry hook device and a casting crane.

Background

The casting cranes used in the metallurgical steelmaking industry generally operate by longitudinal movement of the trolleys along the plant rails, lateral movement, and lifting and lowering of the hooks. Wherein the hook is typically a gantry hook and needs to be fixedly arranged relative to the main beam of the casting crane in order to comply with safe production specifications. However, according to different station requirements, the gantry hook may need to be perpendicular to the main beam or parallel to the main beam, and under the condition that the gantry hook is fixed on the main beam, only two casting cranes can be adopted to work in a matching mode, so that the work is inconvenient and the cost is high.

Therefore, how to provide a gantry hook convenient for adjustment becomes a technical problem to be solved in the field.

Disclosure of Invention

In view of this, the present application provides a gantry hook apparatus to adjust the direction of the gantry hook on the premise of satisfying the safety production.

According to the application, the gantry hook device comprises a gantry hook component, a driving unit, a limiting mechanism and a mounting seat, wherein the gantry hook component comprises a connecting plate, a gantry hook and a rotating shaft, the gantry hook component is fixed on the connecting plate respectively, the gantry hook component is rotatably mounted on the mounting seat, the driving unit is used for driving the rotating shaft to rotate, and the limiting mechanism is mounted on the mounting seat and used for enabling the gantry hook component to be positioned relative to the mounting seat after the gantry hook component rotates to the position.

Optionally, the limiting mechanism includes a limiting gear, a chuck and a pushing unit that pushes the chuck to be in snap fit with or disengaged from teeth of the limiting gear, and the limiting gear is fixed to the rotating shaft.

Optionally, the pushing unit is configured to elastically push the chuck in a state where the limit gear and the chuck are disengaged.

Optionally, the pushing unit includes a telescopic cylinder pushing against the chuck and a biasing member for biasing the chuck toward the limit gear.

Optionally, the pushing unit comprises a mounting frame, a sliding plate and two ends, the mounting frame, the sliding plate and the two ends are fixed to the mounting frame and the sliding rod of the mounting seat respectively, the chuck is fixed to the sliding plate, and the sliding plate slides in a guiding mode through the sliding rod.

Optionally, the gantry hook device includes a bearing plate fixed to the mounting seat, the bearing plate is provided with a chute, and the connecting plate is provided with a slider matched with the chute, so that when the gantry hook assembly rotates, the slider slides along the chute and is borne by the chute.

Optionally, the gantry hook is fixed to the connector tile in such a manner that a hook mouth direction of the gantry hook is adjustable.

Optionally, the gantry hook assembly comprises a connecting sleeve sleeved on the top end of the gantry hook, a jack communicated with an inner cavity of the connecting sleeve is arranged on the periphery of the connecting sleeve, at least two slots capable of being aligned with the jack are arranged on the periphery of the part, sleeved with the gantry hook, of the connecting sleeve, and the connecting pieces capable of being inserted into or withdrawn from the slots through the jacks are mounted on the connecting plate.

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

The present application further provides a ladle crane, wherein, ladle crane includes crane girder, connecting seat and the gantry hook device of this application, the connecting seat install in the crane girder, the mount pad install in the connecting seat.

According to the technical scheme of this application, can pass through drive unit drive pivot to drive the gantry hook and conveniently adjust the direction. After the gantry hook assembly is adjusted in place, the gantry hook assembly can be positioned relative to the mounting seat fixed with the main beam through the limiting mechanism, so that the requirement of being fixed relative to the main beam in a use state is met.

Additional features and advantages of the present application will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate an embodiment of the invention and, together with the description, serve to explain the invention. In the drawings:

FIG. 1 is a schematic view of a gantry hook mounted to a main beam according to a preferred embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view showing the engagement of a limit gear of the limit mechanism and a chuck;

FIG. 4 is an enlarged view of a portion of FIG. 1 at B;

fig. 5 is a schematic diagram illustrating adjustment of the hook opening orientation of the gantry hook.

Detailed Description

The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

According to an aspect of the present application, a gantry hook apparatus is provided, wherein the gantry hook apparatus 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, the gantry hook assembly 12 and the rotating shaft 13 are respectively fixed on the connecting plate 11, the gantry hook assembly 10 is rotatably mounted on the mounting seat 40, the driving unit 20 is used for driving the rotating shaft 13 to rotate, and the limiting mechanism 30 is mounted on the mounting seat 40 and used for positioning the gantry hook assembly 10 relative to the mounting seat 40 after the gantry hook assembly 10 rotates in place.

By using the gantry hook device, the rotating shaft 13 can be driven by the driving unit 20, so that the gantry hook 12 is driven to conveniently adjust the direction. After being adjusted in place, the gantry hook assembly 10 can be positioned relative to the mount to which the crane main beam 60 is secured by the spacing mechanism 30 to meet the requirement of being secured relative to the crane main beam 60 in the use state.

The driving unit 20 may take various suitable forms to drive the rotation shaft 13 to rotate. For example, the driving unit 20 may include a motor 21, a first gear 22 mounted to an output shaft of the motor 21, and a second gear 23 engaged with the first gear 22 and fixed to the rotation shaft 13.

In order to obtain a stable structure, the connection plate 11 and the mounting seat 40 may be arranged in a center, the mounting seat 40 has an inner space and a bottom center through hole communicating with the inner space to allow the rotation shaft 13 to extend, the motor 21 may be arranged outside the mounting seat 40, and a side wall of the mounting seat 40 is provided with an escape hole allowing the first gear 22 and/or the second gear 23 to pass through.

In the present application, the limiting mechanism 30 can limit the appropriate components of the gantry hook assembly 10 (e.g., the connector tile 11, the gantry hook 12, the shaft 13) to limit the overall assembly. The position limiting mechanism 30 can take various suitable forms as required and limited layout, as long as it can position the gantry hook assembly 10 after it is rotated in place.

In a preferred embodiment of the present application, as shown in fig. 1 to 3, the limiting mechanism 30 may include a limiting gear 31, a chuck 32, and a pushing unit that pushes the chuck 32 to be in snap-fit with or disengaged from teeth of the limiting gear 31, wherein the limiting gear 31 is fixed to the rotating shaft 13. When the gantry hook assembly 10 rotates in place, the pushing unit can push the clamping head 32 to the position matched with the tooth buckle of the limiting gear 31, so that the limiting gear 31 and the rotating shaft 13 are limited to rotate, and the effect of limiting the rotation of the gantry hook assembly 10 (particularly preventing the rotating shaft 13 from rotating due to the careless rotation of the motor 21) is achieved.

Wherein the pushing unit may take a suitable form so as to be able to push the chuck 32 to move into a position of meshing with the limit gear 31, thereby enabling the chuck 32 to reach a limit state of meshing with the limit gear 31. Moreover, the pushing unit can drive the chuck 32 to reach a limit releasing state away from the limit gear 31, that is, the operation of the pushing unit can realize the switching between the limit state and the limit releasing state of the chuck 32. For example, the pushing unit may be in a form capable of linearly expanding and contracting (e.g., a telescopic cylinder, a push rod, etc.) to push the chuck 32 into a limit state of being engaged with the limit gear 31 by being expanded, and to bring the chuck 32 to a limit released state of being separated from the limit gear 31 by being retracted.

Preferably, in order to stably adjust the gantry hook assembly 10 in a state where the limit gear 31 and the chucking head 32 are disengaged, the pushing unit may be configured to elastically push the chucking head 32 in a limit-released state. That is, in the limit released state (i.e., the position of the chuck 32 is not completely limited, and the chuck can be easily released even if engaged with the limit gear 31), the chuck 32 is always elastically pushed against the limit gear 31, so that when the rotating shaft 13 is rotated, the limit gear 31 overcomes the interference of the chuck 32 to push the chuck 32 outward while rotating, thereby completely releasing the snap fit, and when the limit gear 31 rotates by one tooth, the chuck 32 can be elastically pushed against to automatically return to the limit state, that is, an appropriate resistance is provided to the limit gear 31 during the rotation thereof, so that the rotation of the gantry hook assembly 10 is smooth and controllable.

To achieve stable spacing in the spacing state and elastic pushing in the released spacing state, the pushing unit may have a member capable of rigidly pushing against the chuck 32 and a member elastically pushing against the chuck 32. Specifically, in the embodiment shown in fig. 2, the urging unit includes a telescopic cylinder 33 that urges the chucking head 32 and a biasing member 34 for biasing the chucking head 32 toward the limit gear 31. Among them, the telescopic cylinder 33 is used to rigidly push against the chuck head 32, rigidly hold the chuck head 32 in a limit state by extension, and can be disengaged from contact with the chuck head 32 to cancel the rigid limit of the chuck head 32 (i.e., to bring the chuck head 32 into a contact limit state) by retraction. The biasing member 34 can apply a biasing force to the chucking head 32 toward the limit gear 31 in the limit released state so that the chucking head 32 provides resistance to the rotation of the limit gear 31.

When it is desired to rotate the shaft 13 to adjust the orientation of the gantry hook assembly 10, the telescoping cylinder 33 is first retracted so that the telescoping cylinder 33 is out of contact with the collet 32, and the collet 32 is in the undamped state but remains engaged with the limit gear 31 by the biasing member 34. Subsequently, the rotating shaft 13 can be driven to rotate, the limiting gear 31 overcomes the interference of the chuck 32 and pushes the chuck 32 outwards while rotating until the rotating shaft 13 rotates in place, the chuck 32 can be elastically pushed to automatically return to a limiting state of being meshed with the teeth, and finally the telescopic cylinder 33 is extended and contacts the chuck 32 to provide rigid limiting for the chuck 32.

To ensure linear movement of the collet 32, guidance can be provided for movement of the collet 32. Specifically, as shown in fig. 2, the abutting unit may include a mounting frame 35 mounted on the mounting base 40, a sliding plate 36, and a sliding rod 37 having two ends respectively fixed to the mounting frame 35 and the mounting base 40, the chuck 32 is fixed to the sliding plate 36, and the sliding plate 36 slides through the sliding rod 37.

Furthermore, the force of the telescopic cylinder 33 and the biasing member 34 can be applied to the cartridge 32 via the slide plate 36. Also, the components of the limiting mechanism 30 may be specifically arranged according to the positions of the relevant components. Specifically, the connecting plate 11 and the gantry hook 12 may be disposed below the mounting seat 40, the rotating shaft 13 may penetrate through an inner space of the mounting seat 40, the limit gear 31 may be disposed in the inner space of the mounting seat 40, the mounting frame 35, the biasing member 34, the telescopic cylinder 33 may be disposed outside the mounting seat 40, the mounting frame 35 may be fixed on a side wall of the mounting seat 40, the side wall of the mounting seat 40 is provided with a through hole allowing the chuck 32 to pass through, the biasing member 34 may include a spring, one end of the spring is connected to the outside of the mounting seat 40, the other end of the spring is connected to one side of the sliding plate 36 facing the mounting seat 40, and the telescopic cylinder 33 is mounted on the mounting frame 35 and is configured to push against the other side of the sliding plate 36.

Wherein a plurality of springs may be provided, which may be equispaced around the cartridge 32, in order to facilitate the biasing member 34 providing a uniform biasing force. Preferably, a plurality of slide rods 37 may be provided, with a spring being sleeved around each slide rod 37 to more stably guide the movement of the chuck 32 while applying an even biasing force. Also, the telescopic cylinder 33 may be provided to extend and retract the alignment chuck 32. Specifically, in the preferred embodiment shown in fig. 2, the collet 32 is provided at the center of the slide plate 36, the telescopic cylinder 33 is telescopic aligned with the center of the slide plate 36, the plurality of springs of the slide rod 37 and the biasing member 34 are equispaced around the collet 32, and the slide plate 36 is provided with a plurality of through holes around the center to allow the slide rod 37 to penetrate therethrough.

The dop 32 can include the dop main part 321 that is used for cooperating with the tooth of stop gear 31 and the connecting rod 322 of connecting dop main part 321 and slide 36, and in the removal process of dop 32, dop main part 321 removes in mount pad 40 inner space all the time, and only connecting rod 322 runs through the lateral wall of mount pad 40 to can protect chuck main part 321 as far as possible, avoid it to suffer from the damage of external factor and influence its cooperation with stop gear 31. The chuck main body 321 is shaped to fit the teeth of the limit gear 31, for example, to have an isosceles trapezoid cross section.

In this application, in order to facilitate driving of the rotating shaft 13, the weight borne by the rotating shaft 13 should be reduced, for this purpose, the gantry hook device may include a bearing plate 50 fixed to the mounting base 40, the bearing plate 50 is provided with a sliding slot 51, and the connecting plate 11 is provided with a sliding block 111 engaged with the sliding slot 51, so that when the gantry hook assembly 10 rotates, the sliding block 111 slides along the sliding slot 51 and is borne by the sliding slot 51. Through the arrangement of the bearing plate 50, the bearing plate 50 can bear most of the gravity load of the gantry hook assembly 10 through the matching of the sliding groove 51 and the sliding block 111, so that the gravity borne by the rotating shaft 13 is reduced, and the rotating shaft 13 can conveniently rotate. In addition, the slide groove 51 and the slider 111 may have an appropriate structural form to 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 may be a slide groove having a T-shaped cross section, and the slider 111 may be a corresponding slider having a T-shaped cross section.

Wherein the shape and position of the slide slot 51 are configured to accommodate the trajectory of the slide 111 during rotation of the gantry hook assembly 10. For example, the sliding blocks 111 may be provided at least two around the rotation center of the gantry hook assembly 10, and the sliding groove 51 may include an arc shape corresponding to the moving range of each sliding block 111, or the sliding groove 51 may be a ring shape corresponding to the distribution circumference of the sliding blocks 111.

In addition, during use, it may be necessary to adjust the hook opening direction of the gantry hook 12, for example, from a direction in which both hook openings are advanced as shown in fig. 1 to a direction in which the hook openings are opposite to each other. To this end, the gantry hook 12 is preferably fixed to the connector tile 11 in such a way that the hook opening direction of the gantry hook 12 is adjustable, so that different hook opening direction settings can be accommodated by adjusting the fixing position of the gantry hook 12 relative to the connector tile 11.

Wherein the gantry hook 12 can be arranged to the connector tile 11 in various suitable ways to achieve adjustability of the hook mouth. In a preferred embodiment of the present application, as shown in fig. 1, 4 and 5, the gantry hook assembly 10 may include a connecting sleeve 14 sleeved on a top end of the gantry hook 12, a periphery of the connecting sleeve 14 is provided with a jack 141 communicated with an inner cavity of the connecting sleeve 14, the gantry hook 12 is sleeved on a periphery of a portion inside the connecting sleeve 14, the periphery is provided with at least two slots 121 capable of aligning with the jack 141, and the connector 112 capable of inserting into or withdrawing from the slots 121 through the jack 141 is installed on the connecting plate 11. In use, the door hook 12 can be secured to the connector plate 11 by inserting the connector 112 through the insertion hole 141 into the slot 121. When the hook opening direction needs to be adjusted, the plug connector 112 can be pulled out of the slot 121, then the gantry hook 12 can be rotated relative to the connecting sleeve 14 to adjust the hook opening direction, and after the adjustment is in place, another slot 121 is just aligned with the jack 141, so that the gantry hook 12 can be fixed to the connecting plate 11 again by inserting the plug connector 12 again.

In order to observe whether the slot 121 is aligned with the insertion hole 141 during operation, a part of the outer wall of the connection sleeve 14 may be hollowed out.

It will be appreciated that in order to achieve a secure connection of the gantry hook 12 to the connector tile 11 through the plug 112, the portion of the plug 112 inserted into the slot 121 through the socket 141 should have dimensions corresponding to the socket 141 and the slot 121 to ensure a secure mating.

In the present application, the insertion and extraction of the plug 112 can be realized in a suitable manner, for example, the insertion and extraction of the plug 112 can be driven by a telescopic cylinder. For simplifying the structure, as shown in fig. 4, the plug member 112 may include a fixing base 112a, a bolt portion 112b, and a plug post 112c, the fixing base 112a is fixed to the bottom of the connecting plate 11, the fixing base 112a is provided with a screw hole engaged with the screw thread of the bolt portion 112b, and the plug post 112c is provided at the free end of the bolt portion 112 b. When the plug-in connector is used, the bolt part 112b can be rotated by the head of the bolt part 112b, so that the bolt part 112b drives the plug-in post 112c to move, and the plug-in or plug-out operation is completed. Here, the two gantry hooks 12 may be respectively provided with corresponding plug connectors 112, and the two fixing bases 112a may be disposed at a position between the two gantry hooks 12, so that the plug post 112c is pulled out by rotating the two bolt portions 112b to be close to each other, and the plug post 112c is inserted by rotating the two bolt portions 112b to be away from each other.

Since the hook opening direction of the gantry hook 12 is generally selected between the advance direction shown in fig. 1 and the direction opposite to each other rotated by 90 degrees from the direction shown in fig. 1, in order to take cost and efficiency into consideration, as shown in fig. 5, the gantry hook 12 is provided with two insertion grooves 121 distributed by 90 degrees. By selecting different slots 121 to insert into the plug 112, it is possible to easily switch between the hook opening advance and the hook opening opposing direction.

According to another aspect of the present application, there is provided a casting crane, wherein the casting crane comprises a crane main beam 60, a connecting seat 70 and the gantry hook apparatus of the present application, the connecting seat 70 is mounted to the crane main beam 60, and the mounting seat 40 is mounted to the connecting seat 70.

With the ladle crane of the present application, the rotating shaft 13 can be driven by the driving unit 20, so as to drive the gantry hook 12 to conveniently adjust the direction. After being adjusted in place, the gantry hook assembly 10 can be positioned relative to the mount to which the crane main beam 60 is secured by the spacing mechanism 30 to meet the requirement of being secured relative to the crane main beam 60 in the use state.

Therefore, the ladle crane can move the hot metal ladle between the stations in different directions under the condition of meeting the safety production standard, and is suitable for application of metallurgical casting.

The connecting base 70 may be connected to the crane main beam 60 and the mounting base 40 by any suitable structure and means, which are not illustrated and limited herein.

The preferred embodiments of the present application have been described above in detail, however, the present application is not limited to the details of the above embodiments, and various simple modifications may be made to the technical solution of the present application within the technical idea of the present application, and these simple modifications all belong to the protection scope of the present application.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in the present application.

In addition, any combination of the various embodiments of the present application is also possible, and the same should be considered as disclosed in the present application as long as it does not depart from the idea of the present application.

Claims (10)

1. The gantry hook device is characterized by comprising a gantry hook assembly (10), a driving unit (20), a limiting mechanism (30) and a mounting seat (40), wherein the gantry hook assembly (10) comprises a connecting plate (11), a gantry hook (12) and a rotating shaft (13), the gantry hook assembly (10) is fixed on the connecting plate (11) respectively, the driving unit (20) is used for driving the rotating shaft (13) to rotate, and the limiting mechanism (30) is arranged on the mounting seat (40) and used for positioning the gantry hook assembly (10) relative to the mounting seat (40) after the gantry hook assembly (10) rotates in place.

2. A gantry hook apparatus according to claim 1, wherein the limit mechanism (30) comprises a limit gear (31), a chuck (32) and an urging unit for urging the chuck (32) to be engaged with or disengaged from teeth of the limit gear (31), the limit gear (31) being fixed to the rotary shaft (13).

3. A gantry hook device according to claim 2, wherein the pushing unit is configured to elastically push the chuck (32) in a state where the limit gear (31) and the chuck (32) are disengaged.

4. A gantry hook arrangement according to claim 3, wherein the pushing unit comprises a telescopic cylinder (33) pushing against the cartridge (32) and a biasing member (34) for biasing the cartridge (32) towards the limit gear (31).

5. A gantry hook apparatus according to claim 3, wherein the pushing and abutting unit comprises a mounting frame (35) mounted on the mounting base (40), a sliding plate (36), and a sliding rod (37) having two ends fixed to the mounting frame (35) and the mounting base (40), respectively, the chuck (32) is fixed to the sliding plate (36), and the sliding plate (36) is guided to slide by the sliding rod (37).

6. A gantry hook arrangement according to any one of claims 1-5, characterized in that the gantry hook arrangement comprises a carrier plate (50) fixed to the mount (40), the carrier plate (50) being provided with a slide groove (51), and the engaging plate (11) being provided with a slide block (111) cooperating with the slide groove (51) such that upon rotation of the gantry hook assembly (10) the slide block (111) slides along the slide groove (51) and is carried by the slide groove (51).

7. A gantry hook arrangement according to any one of claims 1-5, wherein the Long Mengou (12) is fixed to the connector plate (11) in such a way that the hook mouth direction of the gantry hook (12) is adjustable.

8. A gantry hook device according to claim 7, characterized in that the gantry hook assembly (10) comprises a connecting sleeve (14) sleeved on the top end of the Long Mengou (12), the periphery of the connecting sleeve (14) is provided with a jack (141) communicated with the inner cavity of the connecting sleeve (14), the periphery of the part of the Long Mengou (12) sleeved in the connecting sleeve (14) is provided with at least two slots (121) capable of being aligned with the jack (141), and the connecting plate (11) is provided with a plug connector (112) capable of being inserted into or withdrawn from the slot (121) through the jack (141).

9. A gantry hook device according to claim 8, characterized in that the Long Mengou (12) is provided with two slots (121) distributed at 90 degrees.

10. A casting crane, characterized in that it comprises a crane main beam (60), a connection base (70) and a gantry hook arrangement according to any one of claims 1-9, said connection base (70) being mounted to said crane main beam (60) and said mounting base (40) being mounted to said connection base (70).

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