Cross beam support and electric rotary lifting hook

Abstract

The utility model discloses a crossbeam bearer and electric swivel hook relates to hoisting equipment field, crossbeam bearer includes crossbeam and drive mechanism seat, crossbeam left and right sides are respectively integratedly equipped with the rotating shaft, between upper and lower surface there is provided a first through hole; the driving mechanism base is fixedly arranged on the side face of the cross beam and internally provided with a channel. The cross beam support is applied to the electric rotary lifting hook, the structure of the electric rotary lifting hook is simplified, installation is more convenient, through structural improvement, the driving mechanism and the driven mechanism are fixedly connected, stability and reliability of power transmission are ensured, and through rotatable connection between the cross beam support and the side plate set, the power transmission efficiency is improved. According to the electric rotary lifting hook, the hook head can swing freely, meshing transmission of the gear is not affected, the unique design ingeniously solves the contradiction between swinging of the hook head and meshing transmission of the gear, and the electric rotary lifting hook is not only suitable for being used on a single-lifting-hook crane, but also suitable for being used on a double-lifting-hook crane.

Description

Technical Field

[0001] The utility model relates to the field of hoisting equipment, and in particular to a beam support and an electric rotating hook. Background Art

[0002] As an important component of the crane, the hook is responsible for hanging heavy objects. In the operation of traditional cranes, hanging the objects on the hook and adjusting the position of the objects during the lifting process rely on manual operation. This means that the operator needs to work under the side of the heavy object. Once the object falls off accidentally, the life safety of the operator below will be seriously threatened. In addition, manual propulsion to rotate the object is not only laborious, but also difficult to control accurately, which can easily lead to instability and insecurity during the lifting process. With the development of mechanical automation, electric rotating hooks have gradually emerged. The rotation of the hook side is controlled by a motor, and the operator does not need to perform dangerous operations under the object, which greatly improves the safety of work.

[0003] In order to facilitate lifting heavy objects, the hook head should be able to rotate around the vertical axis and swing around the horizontal axis. The electric rotating hooks currently on the market use gear transmission, and the meshing accuracy of gear transmission is relatively high. It is often necessary to fix the hook head and the drive mechanism together on the side plate to prevent misalignment between the two and cause gear offset, which may cause serious tooth surface wear and tooth breakage during transmission. However, it also limits the shaking of the hook head on the horizontal axis. The electric rotating hook with this structure is complex and bulky. In general, in order to maintain the balance of the electric rotating hook, a single drive and a counterweight block on the other side are usually used, or an external double drive is used for balancing.

[0004] In addition, double hook configuration (one large hook and one small hook) is common in gantry cranes, truck cranes and other application scenarios. However, during the operation of the crane, the hooks sway with the wire rope, which easily causes the two hooks to collide with each other. Especially when the drive mechanism is installed on the outside of the side plate, the collision is more likely to cause damage to the drive mechanism, affecting the normal operation of the crane. Utility Model Content

[0005] In view of the defects in the prior art, the purpose of the utility model is to provide a beam support and an electric rotating hook.

[0006] One of the purposes of the present invention is to provide a beam support, comprising:

[0007] A crossbeam, wherein a rotation axis is integrally provided on the left and right sides of the crossbeam, and a first through hole is provided between the upper and lower surfaces;

[0008] The driving mechanism seat is fixedly arranged on the side of the cross beam and has a channel arranged inside.

[0009] Preferably, the driving mechanism seat comprises an open shell and a support platform arranged above the shell, and a second through hole is arranged on the support platform and communicated with the open channel of the shell.

[0010] Preferably, an annular supporting groove is formed on the upper surface of the cross beam, and the supporting groove and the first through hole form a step shape.

[0011] In some preferred embodiments, the shell and the crossbeam are connected together via a shell seat plate.

[0012] The second object of the utility model is to provide an electric rotating hook using the above-mentioned beam support, including a side plate group and a driven mechanism, and also including:

[0013] A crossbeam support, the crossbeam support comprising a crossbeam and a driving mechanism seat, the crossbeam being rotatably disposed in the side plate group;

[0014] The driving mechanism, wherein the output shaft of the driving mechanism passes downwardly into the driving mechanism seat and is transmission-connected with the driven mechanism.

[0015] Preferably, the driven mechanism includes a hook and a nut, and the hook handle of the hook passes through the first through hole of the crossbeam from bottom to top; the nut is arranged at the tail of the hook handle, and the nut and the hook handle are fixedly connected together by a pin shaft, and the nut is provided with a structure that is transmission-connected to the output shaft.

[0016] In some preferred embodiments, the tail of the hook handle is screwed into the nut.

[0017] Further preferably, a thrust bearing is sleeved on the hook handle, and the thrust bearing is arranged between the crossbeam and the nut.

[0018] In some preferred embodiments, a driving gear is disposed on the output shaft, and a driven gear is disposed on the nut, and the two are meshed with each other.

[0019] In some preferred embodiments, there is a straight tooth transmission between the output shaft and the nut.

[0020] In some preferred embodiments, the thrust bearing is disposed in a supporting groove of the crossbeam.

[0021] In some preferred embodiments, a groove is formed on the lower surface of the nut, and the nut is sleeved on a thrust bearing.

[0022] In some preferred embodiments, a connecting structure is provided on the side panel group.

[0023] Further preferably, the electric rotary hook further comprises: a pulley block and a pulley cover, wherein:

[0024] The pulley block includes a plurality of pulleys rotatably connected to a pulley shaft.

[0025] The pulley cover is a shell with an upper opening, which is arranged outside the pulley block. A cover through hole is provided below the shell, and the side plate is used to pass through the cover through hole and be connected to the pulley shaft.

[0026] In some preferred embodiments, the pulley cover is fixedly connected to the side plate.

[0027] In some preferred embodiments, the pulley cover is a split structure combined and connected into a whole.

[0028] In some preferred embodiments, the pulley shaft and the pulley block are connected by a bearing.

[0029] Compared with the prior art, the beneficial effects of the utility model are:

[0030] The utility model provides a crossbeam support which can be used in an electric rotating hook. The crossbeam support realizes the internal installation of a driving mechanism, and when the hook shakes, it avoids collision and damage to the driving mechanism.

[0031] The utility model provides an electric rotating hook, which simplifies the structure of the electric rotating hook and is more convenient to install. Through structural improvement, a fixed connection between a driving mechanism and a driven mechanism is adopted to ensure the stability and reliability of power transmission. The rotatable connection between the crossbeam support and the side plate group realizes the free swing of the hook head without affecting the meshing transmission of the gears. This unique design cleverly solves the contradiction between the swing of the hook head and the meshing transmission of the gears. And in the gear transmission connection, straight tooth transmission can be selected, which is simpler to process and has lower cost than other transmission methods (such as bevel gear transmission).

[0032] The electric rotating hook provided by the utility model is not only suitable for use on single hook cranes, but also suitable for use on double hook cranes. By suspending two sets of pulleys under multiple steel wire ropes, a double hook configuration can be achieved. Since the driving mechanism is built-in, the collision damage to the driving mechanism when the double hooks collide with each other is avoided. Moreover, since the driving mechanism and the driven structure are an integral whole, when a collision occurs, the two can rotate and swing together with the crossbeam without causing deviation in gear meshing, and the operation is stable and the service life is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a three-dimensional schematic diagram of the beam support in Example 1;

[0034] Figure 2 It is an exploded schematic diagram of the crossbeam support in Example 1;

[0035] Figure 3 It is a three-dimensional schematic diagram of the electric rotating hook in Example 2;

[0036] Figure 4 for Figure 3 A three-dimensional diagram showing the hidden side panels;

[0037] Figure 5 for Figure 4 A three-dimensional schematic diagram of the hidden driving mechanism seat and the housing seat plate;

[0038] Figure 6 It is a cross-sectional view along the central symmetric plane of the two side plates of Example 2;

[0039] Figure 7 for Figure 6 A partial enlarged view of part A;

[0040] Figure 8 It is a three-dimensional schematic diagram of the electric rotating hook that can be hung in Example 3.

[0041] In the figure: 1, crossbeam; 1-1, rotating shaft; 1-2, first through hole; 1-3, snap-in groove; 1-4, supporting groove; 2, driving mechanism seat; 2-1, channel; 2-2, housing; 2-3, supporting platform; 2-3-1, second through hole; 3, housing seat plate; 4, stopper; 5, hook; 6, nut; 6-1, groove; 6-2, driven gear; 7, pin shaft; 8, side plate; 8-1, upper through hole; 9, thrust bearing; 10, motor; 11, reducer; 11-1, output shaft; 11-2, driving gear; 12, pulley; 13, pulley shaft; 14, pulley cover; 14-1, edge. DETAILED DESCRIPTION

[0042] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0043] Example 1

[0044] This embodiment introduces a beam support, such as Figure 1 and Figure 2 As shown, it is suitable for use in an electric rotating hook whose driving mechanism is arranged between the side plates 8, and the structure is:

[0045] The beam 1 has a rotating shaft 1-1 on each of its left and right sides, and is an integrated structure. A through hole (named as the first through hole 1-2) is provided between the upper and lower surfaces for rotationally connecting to the driven structure.

[0046] The driving mechanism seat 2 is fixedly arranged on the side of the beam 1 for supporting the output end of the driving mechanism, and a channel 2-1 is arranged on the inner side of the driving mechanism seat 2 for transmission connection between the output shaft 11-1 of the driving mechanism and the driven structure.

[0047] Furthermore, the driving mechanism seat 2 includes an open shell 2-2 and a support platform 2-3 arranged above the shell 2-2. A through hole (named as the second through hole 2-3-1) is arranged on the support platform 2-3 to communicate with the channel 2-1 of the opening part of the shell 2-2.

[0048] Furthermore, an annular supporting groove 1-4 is opened outside the first through hole 1-2 on the upper surface of the beam 1 to form a step shape with the first through hole 1-2 for supporting the driven structure.

[0049] In this embodiment, the lower part of the shell 2-2 is a semicircular tube with an opening on one side, which gradually transitions to a circular tube shape upwards. A support platform 2-3 is welded to the top of the circular tube and is connected to the flange at the output end of the driving mechanism by bolts. The output shaft 11-1 of the driving mechanism extends downward from the second through hole 2-3-1 of the support platform 2-3 to the inside of the shell 2-2 and is connected to the driven structure in transmission.

[0050] Specifically, in this embodiment, the driving mechanism seat 2 is arranged on the rear side of the beam 1. In actual implementation, a shell 2-2 can be arranged on the front and rear sides of the beam 1, and the support platform 2-3 is arranged on the top of the two shells 2-2.

[0051] Furthermore, a snap-in groove 1 - 3 is provided on the rotating shaft 1 - 1 , which is used to fix the rotating shaft 1 - 1 laterally through the side plate 8 by means of a stopper 4 during use, so as to prevent the rotating shaft 1 - 1 from escaping from the side plate 8 .

[0052] It is worth noting that in national standards and industry requirements, the load-bearing crossbeam 1 is not allowed to be welded. Therefore, in this embodiment, the semi-circular tubular housing 2-2 is first welded to the housing base plate 3, and then the housing base plate 3 is connected to the crossbeam 1 by fasteners such as bolts. Furthermore, the lower part of the housing 2-2 can also be a semi-circular tubular with a flat side wall. In this way, the housing base plate 3 can be omitted, and the flat side wall can be directly connected to the side wall of the crossbeam 1 by bolts.

[0053] Example 2

[0054] In this embodiment, a hook head 5 is taken as an example to introduce an electric rotating hook using the above-mentioned beam support. Figures 3 to 5 As shown, the structure includes: a side plate group, a beam support, a driving mechanism and a driven mechanism, wherein:

[0055] The crossbeam support is arranged in the side plate group and is rotatably connected to the side plate group. The crossbeam support includes a crossbeam 1 and a driving mechanism seat 2. The specific structure is as described in Example 1.

[0056] The output shaft 11-1 of the driving mechanism penetrates downward into the driving mechanism seat 2, and is meshed with the gear teeth on the driven structure through the gears to achieve transmission connection.

[0057] Furthermore, the driven structure includes: a hook 5 and a nut 6, wherein:

[0058] The hook head 5 and the hook handle pass through the first through hole 1-2 on the crossbeam 1 from bottom to top;

[0059] The nut 6 is located above the crossbeam 1 and is sleeved on the outside of the hook handle. It is fixed to the hook handle through a pin 7. A circle of gear teeth is arranged on the outer side wall of the upper part of the nut 6 along the circumferential direction.

[0060] It is worth noting that, preferably, the nut 6 is provided with an internal thread, the hook handle is provided with an external thread, the tail of the hook handle is screwed into the nut 6, and the two are threadedly connected. This makes the force more uniform, reduces the problem of local stress concentration caused by the force point being concentrated at the pin position, and improves the stability and durability of the connection.

[0061] Below is the attached figure Figure 6 to Figure 7 The structure of the electric rotating hook of this embodiment is introduced in detail.

[0062] The side plate group consists of two side plates 8, and a through hole (named as lower through hole) is opened at the lower part of each side plate 8.

[0063] The rotating shafts 1-1 on both sides of the crossbeam 1 are rotatably connected to the lower through holes of the corresponding side plates 8 respectively. A stopper 4 is arranged outside the side plates 8 and clamped in the clamping groove 1-3 of the rotating shaft 1-1. The stopper 4 is fixed to the outer side of the side plates 8 by bolts.

[0064] In order to allow the hook head 5 to rotate more smoothly, a thrust bearing 9 is provided on the upper surface of the beam 1, which is sleeved outside the hook handle and preferably provided in an annular support groove 1-4 on the upper surface of the beam 1; further preferably, a groove 6-1 is opened on the lower surface of the nut 6 and sleeved on the thrust bearing 9.

[0065] In this embodiment, the gear teeth on the nut 6 are arranged on the upper part of the nut 6, and the shell 2-2 extends upward to the top of the nut 6. The driving mechanism uses a motor 10 and a reducer 11. The output shaft 11-1 of the reducer 11 has a driving gear 11-2, and the gear teeth on the nut 6 are the driven gear 6-2. The two are meshed, preferably a straight tooth transmission.

[0066] In this embodiment, a horizontal driving mechanism is selected, and there is no need to set a counterweight block.

[0067] The electric rotating hook is suspended by setting holes and other connection structures on the side plate group, and can be used after power is turned on. When in use, the rotation control of the hook head 5 is realized by controlling the driving mechanism, and the gear meshing transmission is used. The driving mechanism and the hook head 5 are relatively fixedly connected with the cross beam 1 to form a whole, and the longitudinal swing of the hook head 5 is realized without affecting the gear meshing transmission through the rotation connection between the two ends of the cross beam 1 and the side plate group.

[0068] Example 3

[0069] This embodiment provides an application of the above-mentioned electric rotating hook, such as Figure 8 As shown, it includes: a pulley block, a pulley cover 14 and an electric rotating hook, wherein:

[0070] The pulley block includes a plurality of pulleys 12 connected together by a pulley shaft 13 and is rotatably connected.

[0071] The pulley cover 14 is opened at the top and is arranged outside the pulley block. A through hole (named as the cover through hole) is opened at the bottom for the side plate 8 in the electric rotating hook to pass through, and a through hole (named as the upper through hole 8-1) is arranged on the upper part of the side plate 8, which is sleeved on the pulley shaft 13.

[0072] It should be noted that, for the sake of safety, nuts are provided at both ends of the pulley shaft 13 and on the outer layer of the pulley cover 14 to prevent the pulley cover 14 and the pulley 12 inside it from falling off.

[0073] Furthermore, an edge 14 - 1 is provided below the pulley cover 14 , and the side plate 8 is fixed by bolts.

[0074] In this embodiment, the edge 14 - 1 and the side plate 8 are connected by bolts.

[0075] Furthermore, the pulley cover 14 is a split structure, and multiple shells are connected to each other to form a whole. Each shell is provided with an edge 14-1 at the connection point, and is connected together by bolts.

[0076] Furthermore, the pulley block includes at least two pulleys 12, which are symmetrically arranged at both ends of the pulley shaft 13. In actual implementation, the pulley block can be arranged according to the actual weighing requirements and the length of the pulley shaft 13. In this embodiment, four pulleys 12 are arranged, and the two pulleys 12 arranged inside can also be used to prevent the side plate 8 from moving along the pulley shaft 13.

[0077] Furthermore, a bearing is provided between the pulley shaft 13 and the pulley block.

[0078] In this way, the wire rope can be passed through the pulley block and connected to the lifting device.

[0079] In summary, the electric rotating hook provided by the utility model simplifies the hook structure, is convenient for installation and use, and realizes the free swing of the hook head 5 around the beam without affecting the gear meshing transmission, which not only reduces the overall dead weight, but also reduces the space occupancy. This improved design enables the driving component to be tightly combined with the beam 1, providing stability to the overall structure.

[0080] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0081] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A beam support, characterized in that: The crossbeam support comprises: A crossbeam, wherein a rotation axis is integrally provided on the left and right sides of the crossbeam, and a first through hole is provided between the upper and lower surfaces; The driving mechanism seat is fixedly arranged on the side of the cross beam and has a channel arranged inside.

2. The beam support according to claim 1, characterized in that: The driving mechanism seat comprises an open shell and a support platform arranged above the shell, and a second through hole is arranged on the support platform and communicated with the open channel of the shell.

3. The beam support according to claim 1, characterized in that: An annular supporting groove is formed on the upper surface of the cross beam, and the supporting groove and the first through hole form a step shape.

4. The beam support according to claim 2, characterized in that: The shell and the crossbeam are connected together via a shell seat plate.

5. An electric rotating hook, characterized in that: The electric rotating hook includes a side plate group, a driven mechanism and a beam support as described in any one of claims 1 to 4, wherein the beam support includes a beam and a driving mechanism seat, and the beam can be rotatably arranged in the side plate group; the driving mechanism seat is used to support the driving mechanism, and the output shaft of the driving mechanism downwardly penetrates into the driving mechanism seat and is transmission-connected with the driven mechanism.

6. The electric rotating hook according to claim 5, characterized in that: The driven mechanism includes a hook and a nut, the hook handle of the hook passes through the first through hole of the crossbeam from bottom to top; the nut is arranged at the tail of the hook handle, and the nut and the hook handle are fixedly connected together by a pin shaft, and the nut is provided with a structure that is transmission-connected to the output shaft.

7. The electric rotating hook according to claim 6, characterized in that: A thrust bearing is sleeved on the hook handle, and the thrust bearing is arranged between the crossbeam and the nut.

8. The electric rotating hook according to claim 7, characterized in that: It also includes one or more of the following technical features: A. A driving gear is disposed on the output shaft, and a driven gear is disposed on the nut, and the two are meshed with each other; B. There is a straight tooth transmission between the output shaft and the nut; C. The thrust bearing is arranged in the support groove of the crossbeam; D. The lower surface of the nut is provided with a groove and is sleeved on the thrust bearing; E. The tail of the hook handle is screwed into the nut; F. A connecting structure is provided on the side panel group.

9. The electric rotating hook according to any one of claims 5 to 8, characterized in that: Also includes: A pulley block and a pulley cover, wherein: The pulley block includes a plurality of pulleys rotatably connected to a pulley shaft. The pulley cover is a shell with an upper opening, which is arranged outside the pulley block. A cover through hole is provided below the shell, and the side plate is used to pass through the cover through hole and be connected to the pulley shaft.

10. The electric rotating hook according to claim 9, characterized in that: It also includes one or more of the following technical features: A. The pulley cover is fixedly connected to the side plate; B. The pulley cover is a split structure combined and connected into a whole; C. The pulley shaft and the pulley block are connected by bearings.

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