An adjustable linkage table for a crane

Abstract

The utility model provides a kind of adjustable crane linkage platform, including bottom plate and linkage platform body, the top of bottom plate is fixedly provided with base, the top of base is rotatably provided with rotating plate, rotating drive mechanism for driving rotating plate rotation is provided on the bottom plate, rotating limiting mechanism is provided between rotating plate and the bottom plate, the middle part of rotating plate is provided with lifting mechanism, the top of lifting mechanism is provided with rotating table, linkage platform body is assembled and fixed at the top of rotating table;In the utility model, rotating drive mechanism can drive rotating plate to drive rotating table and the linkage platform body on its top to rotate, the angle of linkage platform body is adjusted, to facilitate the real-time situation of crane is observed, and ensure that operating handle activity space is sufficient.

Description

Technical Field

[0001] This utility model belongs to the field of crane technology, specifically relating to an adjustable crane linkage platform. Background Technology

[0002] The control console is a specialized operating device for cranes. It is typically located inside the operator's cab, which is situated within a wall on one side of the crane's operating area. The operator's cab features floor-to-ceiling windows for observing the crane and the surrounding environment. In narrow operator's cabs or areas with dense equipment, the control console often needs to be rotated and adjusted to avoid obstacles, allowing for real-time observation of the crane and ensuring sufficient room for the control levers to move.

[0003] In the prior art, Chinese utility model patent document with authorization announcement number CN206476666U discloses an electric rotary linkage control console, which drives the geared motor to rotate relative to the rotating shaft, thereby driving the upper rotary table to rotate and realizing the angle adjustment of the linkage table; however, it still has the following shortcomings in use.

[0004] (1) The lack of a limiting mechanism for adjusting the angle of the linkage table makes it difficult to limit the angle during the adjustment process. In case of operator error, collisions, cable entanglement, and excessive bending of the cable may occur.

[0005] (2) The overall adjustment freedom of the linkage is limited. It usually only supports seat height adjustment to adapt to the operator's static sitting posture, but cannot achieve overall height adjustment. When it is necessary to dynamically adjust the observation angle (such as crane operation monitoring), repeatedly adjusting the seat height will affect the continuity of operation and reduce efficiency.

[0006] Therefore, it is necessary to design an adjustable crane control table that can limit the angle adjustment range of the control table and realize the overall height adjustment of the control table to solve the current technical problems. Utility Model Content

[0007] In view of the shortcomings of the existing technology, the present invention provides an adjustable crane linkage table that can limit the angle adjustment range of the linkage table and realize the overall height adjustment of the linkage table.

[0008] The technical solution of this utility model is as follows: an adjustable crane linkage platform, including a base plate and a linkage platform body. A base is fixedly installed on the top of the base plate, and a rotating plate is rotatably installed on the top of the base plate. A rotary drive mechanism for driving the rotating plate to rotate is installed on the base plate. A rotation limiting mechanism is installed between the rotating plate and the base plate. A lifting mechanism is installed in the middle of the rotating plate, and a rotating platform is installed on the top of the lifting mechanism. The linkage platform body is assembled and fixed on the top of the rotating platform. The rotation limiting mechanism has a trigger block fixedly installed at the bottom of the rotating plate. An arc-shaped connecting strip concentrically arranged with the rotation trajectory of the trigger block is installed on the top of the base plate. A clamping groove is fitted on the arc-shaped connecting strip, and a support plate is installed on the top of the clamping groove. A rotation limiting proximity switch corresponding to the trigger block is installed on the support plate.

[0009] Furthermore, a support cylinder is centrally located at the bottom of the rotating plate, a hanging plate is fixedly installed at the bottom of the support cylinder, and the lifting mechanism is located at the top of the hanging plate.

[0010] Furthermore, the lifting mechanism has a lifting cylinder that is slidably disposed inside the support cylinder along its axial direction, a lifting frame is disposed in the middle of the lifting cylinder, and a screw jack that drives the lifting frame to move up and down is disposed at the top of the suspended plate.

[0011] Furthermore, the screw jack has a worm gear transmission box, a screw, and a screw nut. The worm gear transmission box is fixedly installed on the top of the hanging plate. The input end of the worm gear transmission box is connected to a lifting motor. The screw nut is threadedly connected to the outside of the screw and is fixedly installed at the bottom of the lifting frame.

[0012] Furthermore, the top of the suspended platform has guide rods arranged in a circular array, the bottom end of the guide rods is vertically and fixedly connected to the top of the suspended platform, and a sliding sleeve is fixedly provided on the outside of the lifting cylinder, the sliding sleeve being slidably fitted on the outside of the guide rods.

[0013] Furthermore, a support ring is fixedly provided at the top of the guide rod, and a height limit proximity switch corresponding to the top of the sliding sleeve is provided at the bottom of the support ring.

[0014] Furthermore, the rotating plate and the base are rotatably connected by a slewing bearing. The slewing bearing has an inner ring fixedly disposed on the top of the base, and an outer gear ring is rotatably fitted on the outer side of the inner ring. The rotary drive mechanism has a gear that meshes with the outer gear ring, and a rotary drive motor that drives the gear to rotate is fixedly disposed on the base plate.

[0015] Furthermore, the rotary drive motor is a worm gear reducer motor.

[0016] Furthermore, the clamping groove is provided with bolts for locking or releasing it between itself and the arc-shaped connecting strip.

[0017] The beneficial effects of this utility model are:

[0018] (1) In this utility model, the rotary drive mechanism can drive the rotating plate to rotate the rotating table and the linkage table body on its top, and adjust the angle of the linkage table body so as to make it easier to observe the real-time situation of the crane and ensure that the operating handle has sufficient space for movement.

[0019] (2) Rotation limit proximity switches are set on the two rotation paths of the trigger block to limit the rotation angle range of the rotating plate. When the rotation drive mechanism can drive the rotating plate to rotate and adjust, the trigger block in the rotation limit mechanism rotates with the rotating plate. When the trigger block triggers any rotation limit proximity switch, the rotation drive mechanism stops driving the rotating plate to rotate, thereby achieving the purpose of limiting and avoiding collisions caused by excessive rotation range of the rotating plate.

[0020] (3) By adjusting the position of the clamping groove on the arc-shaped connecting strip, the position of the rotation limit proximity switch at the top of the clamping groove can be adjusted, thereby realizing the adjustment of the rotation angle range of the rotary table and its top linkage table body.

[0021] (4) The lifting mechanism can drive the rotary table to move up and down, and realize the height adjustment of the rotary table and its top linkage table body within a certain range. Attached Figure Description

[0022] Figure 1 This is one of the structural schematic diagrams of the adjustable crane linkage table in this utility model.

[0023] Figure 2 This is the second structural schematic diagram of the adjustable crane linkage platform in this utility model.

[0024] Figure 3 for Figure 2 Cross-sectional view at point BB.

[0025] Figure 4 for Figure 1 A magnified view of a portion of point A in the middle. Detailed Implementation

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are not intended to limit the present invention or its application or use in any way. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0027] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] like Figures 1 to 4As shown, an adjustable crane linkage table is disclosed, including a base plate 1 and a linkage table body (not shown in the figure). A base 2 is fixedly mounted on the top of the base plate 1, and a rotating plate 4 is rotatably mounted on the top of the base 2. A rotary drive mechanism 6 for driving the rotating plate 4 to rotate is mounted on the base plate 1. A rotary limiting mechanism 8 is provided between the rotating plate 4 and the base plate 1. A lifting mechanism 7 is provided in the middle of the rotating plate 4, and a rotating table 5 is provided on the top of the lifting mechanism 7. The linkage table body is assembled and fixed on the top of the rotating table 5. The rotary limiting mechanism 8 has a trigger block 81 fixedly mounted on the bottom of the rotating plate 4. An arc-shaped connecting strip 82 concentrically mounted on the top of the base plate 1 with the rotation trajectory of the trigger block 81 is provided. A clamping groove 83 is fitted on the arc-shaped connecting strip 82. A support plate 84 is provided on the top of the clamping groove 83. A rotary limiting proximity switch 85 corresponding to the trigger block 81 is provided on the support plate 84. In this embodiment, the rotary drive mechanism 6 can drive the rotating plate 4 to rotate the rotating table 5 and its top linkage body, adjusting the angle of the linkage body to facilitate real-time observation of the crane and ensure sufficient space for the operating handle. Rotary limit proximity switches 85 are provided on the two rotational paths of the trigger block 81 to limit the rotation angle range of the rotating plate 4. When the rotary drive mechanism 6 drives the rotating plate 4 to rotate, the trigger block 81 in the rotary limit mechanism 8 rotates with the rotating plate 4. When the trigger block 81 triggers either rotary limit proximity switch 85, the rotary drive mechanism 6 stops driving the rotating plate 4 to rotate, achieving the purpose of limiting the rotation and preventing collisions caused by excessive rotation range of the rotating plate 4. The lifting mechanism 7 can drive the rotating table 5 to move up and down, realizing the height adjustment of the rotating table 5 and its top linkage body within a certain range.

[0029] In some embodiments, a support cylinder 41 is centrally located at the bottom of the rotating plate 4, and a hanging plate 42 is fixedly located at the bottom of the support cylinder 41. The lifting mechanism 7 is located at the top of the hanging plate 42. Specifically, the rotating plate 4 is an annular plate, the support cylinder 41 matches the central circular hole of the rotating plate 4, the upper end of the support cylinder 41 is welded to the middle of the rotating plate 4, the hanging plate 42 is welded to the bottom end of the support cylinder 41, and the hanging plate 42 provides support for the lifting mechanism 7.

[0030] In some embodiments, the lifting mechanism 7 has a lifting cylinder 74 that is slidably disposed inside the support cylinder 41 along its axial direction. A lifting frame 73 is disposed in the middle of the lifting cylinder 74, and a screw jack 72 that drives the lifting frame 73 to move up and down is disposed at the top of the hanging plate 42. Specifically, the lifting frame 73 is a circular plate-shaped structure that matches the interior of the lifting cylinder 74, and the outer side of the lifting frame 73 is welded and fixed to the interior of the lifting cylinder 74. The screw jack 72 is a utilization of the prior art and is used to drive the lifting frame 73 to move up and down.

[0031] In some embodiments, the screw jack 72 includes a worm gear transmission box 721, a lead screw 723, and a lead screw nut 722. The worm gear transmission box 721 is fixedly mounted on the top of the hanging plate 42. A lifting motor is driven to the input end of the worm gear transmission box 721. The lead screw nut 722 is threadedly connected to the outside of the lead screw 723 and is fixedly mounted on the bottom of the lifting frame 73. The lifting motor drives the input end of the worm gear transmission box 721 to rotate, and the lead screw 723 connected to the output end of the worm gear transmission box 721 rotates. When the lead screw 723 rotates, the threaded structure of the lead screw 723 and the lead screw nut 722 cooperates to drive the lifting frame 73 to move up and down.

[0032] In some embodiments, the top of the hanging plate 42 is arranged in a circumferential array of guide rods 71, the bottom end of the guide rods 71 ​​is vertically and fixedly connected to the top of the hanging plate 42, and a sliding sleeve 74 is fixedly provided on the outer side of the lifting cylinder 74, the sliding sleeve 74 is slidably fitted on the outer side of the guide rods 71.

[0033] In some embodiments, a support ring 75 is fixedly provided at the top of the guide rod 71, and a height limit proximity switch corresponding to the top of the sliding sleeve is provided at the bottom of the support ring 75. Specifically, four guide rods 71 ​​are arranged in a circular array at the top of the hanging plate 42, the support ring 75 is concentrically arranged with the lifting cylinder 74, and the tops of the four guide rods 71 ​​are fixedly connected to the bottom of the support ring 75. When the lifting mechanism 7 drives the rotating table 5 to rise to the highest limit, the sliding sleeve 74 just triggers the height limit proximity switch, and the rising stops. Similarly, a proximity switch is used to limit the descent.

[0034] In some embodiments, the rotating plate 4 and the base 1 are rotatably connected by a slewing bearing 3. The slewing bearing 3 has an inner ring 31 fixedly disposed on the top of the base 2. An outer gear ring 32 is rotatably fitted on the outer side of the inner ring 31. The rotary drive mechanism 6 has a gear 61 that meshes with the outer gear ring 32. A rotary drive motor 62 that drives the gear 61 to rotate is fixedly disposed on the base plate 1.

[0035] In some embodiments, the rotary drive motor 62 is a worm gear reducer motor.

[0036] In some embodiments, the clamping groove 83 is provided with a bolt for locking or releasing it between itself and the arc-shaped connecting strip 82; the bolt is threadedly connected to the clamping groove 83, and rotating the bolt in both directions causes the end of the bolt to abut against or move away from the arc-shaped connecting strip 82, thereby achieving locking or releasing between the clamping groove 83 and the arc-shaped connecting strip 82.

[0037] It should be noted that the linkage table body is assembled and fixed on the top of the rotary table. The linkage table body is a utilization of existing technology. This application does not involve any improvement to the linkage table body, so its specific structure will not be described in detail.

[0038] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0039] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An adjustable crane control table, characterized in that: The device includes a base plate and a linkage platform body. A base is fixedly mounted on the top of the base plate, and a rotating plate is rotatably mounted on the top of the base plate. A rotary drive mechanism for driving the rotating plate to rotate is mounted on the base plate. A rotary limiting mechanism is provided between the rotating plate and the base plate. A lifting mechanism is provided in the middle of the rotating plate, and a rotating platform is provided on the top of the lifting mechanism. The linkage platform body is assembled and fixed on the top of the rotating platform. The rotary limiting mechanism has a trigger block fixedly mounted on the bottom of the rotating plate. An arc-shaped connecting strip concentrically mounted with the rotation trajectory of the trigger block is provided on the top of the base plate. A clamping groove is fitted on the arc-shaped connecting strip, and a support plate is provided on the top of the clamping groove. A rotary limiting proximity switch corresponding to the trigger block is provided on the support plate.

2. The adjustable crane control table according to claim 1, characterized in that: A support cylinder is centrally located at the bottom of the rotating plate, and a hanging plate is fixedly installed at the bottom of the support cylinder. The lifting mechanism is located at the top of the hanging plate.

3. The adjustable crane linkage table according to claim 2, characterized in that: The lifting mechanism has a lifting cylinder that is slidably disposed inside the support cylinder along its axial direction, a lifting frame is disposed in the middle of the lifting cylinder, and a screw jack that drives the lifting frame to move up and down is disposed at the top of the hanging plate.

4. The adjustable crane linkage table according to claim 3, characterized in that: The screw jack has a worm gear transmission box, a screw, and a screw nut. The worm gear transmission box is fixedly installed on the top of the hanging plate. The input end of the worm gear transmission box is connected to a lifting motor. The screw nut is threadedly connected to the outside of the screw and is fixedly installed at the bottom of the lifting frame.

5. The adjustable crane linkage table according to claim 3, characterized in that: The top of the suspended platform has guide rods arranged in a circular array, and the bottom end of the guide rods is vertically and fixedly connected to the top of the suspended platform. A sliding sleeve is fixedly installed on the outside of the lifting cylinder, and the sliding sleeve is slidably fitted on the outside of the guide rods.

6. The adjustable crane linkage table according to claim 5, characterized in that: A support ring is fixedly installed at the top of the guide rod, and a height limit proximity switch corresponding to the top of the sliding sleeve is installed at the bottom of the support ring.

7. The adjustable crane control table according to claim 1, characterized in that: The rotating plate and the base are rotatably connected by a slewing bearing. The slewing bearing has an inner ring fixedly disposed on the top of the base. An outer gear ring is rotatably fitted on the outer side of the inner ring. The rotary drive mechanism has a gear that meshes with the outer gear ring. A rotary drive motor that drives the gear to rotate is fixedly disposed on the base plate.

8. The adjustable crane linkage table according to claim 7, characterized in that: The rotary drive motor is a worm gear reducer motor.

9. The adjustable crane control table according to claim 1, characterized in that: The groove is provided with bolts for locking or releasing it between the groove and the arc-shaped connecting strip.

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