A wire arrangement for a crane telescopic column

Abstract

The utility model relates to crane rigid telescopic guide column wiring technical field, and disclose a kind of for crane rigid telescopic guide column's wiring structure, it includes frame beam, the frame beam upper end is provided with travelling trolley, rigid telescopic guide column is provided on the travelling trolley, the rigid telescopic guide column lower end is provided with grab bucket spreader. By connecting the wiring cable of grab bucket spreader in rigid telescopic guide column is set as spring cable, spring cable can meet the telescopic demand of rigid telescopic guide column, also cannot occur deformation in use process;Spring cable does not touch with guide column inner wall when rigid telescopic guide column telescopic work, can avoid cable and rigid telescopic guide column inner wall friction and cause damage;Spring cable has tension itself, can guarantee when rigid telescopic guide column works cable in height direction on 'consistency', will not lead to cable in guide column interior cause 'knot' phenomenon, further avoid cable be pulled apart.

Description

Technical Field

[0001] This utility model belongs to the field of wiring technology for rigid telescopic guide columns of cranes, specifically a wiring structure for rigid telescopic guide columns of cranes. Background Technology

[0002] In recent years, with the development of the crane industry, the types of goods lifted by cranes have become increasingly diverse, resulting in a wider variety of lifting devices used. In the field of crane automation, due to the high requirements for crane positioning accuracy, rigid structures are used to connect the lifting devices. Rigid telescopic guide columns are employed to connect the crane and the grab bucket lifting device. This significantly reduces the swaying of the lifting device during crane movement and increases the reliability of crane positioning.

[0003] Rigid telescopic guide columns are generally composed of three sections of steel structure resembling "rectangular tubes" connected together, with a hollow center. To ensure the aesthetics of the wiring, it is generally considered to run the wiring inside the rigid telescopic guide column. However, the wiring in existing rigid telescopic guide columns for cranes uses ordinary flexible cables. When the rigid telescopic guide column extends and retracts, the cable will rub against the inner wall of the rigid telescopic guide column, causing wear and tear on the cable over time, greatly reducing its service life. The rigid telescopic guide column cannot guarantee the "orderliness" of the cable during extension and retraction, which may cause the cable to become tangled at the bottom of the guide column, leading to cable knots and ultimately causing the cable to break under stress. Therefore, a wiring structure for rigid telescopic guide columns for cranes is proposed here. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a wiring structure for a rigid telescopic guide column of a crane, which effectively solves the problems existing in the wiring of the existing rigid telescopic guide column of a crane.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wiring structure for a rigid telescopic guide column of a crane, comprising a frame beam, a traveling trolley at the upper end of the frame beam, a rigid telescopic guide column on the traveling trolley, a grab bucket lifting device at the lower end of the rigid telescopic guide column, the rigid telescopic guide column comprising a first guide column, a second guide column inside the first guide column, a third guide column inside the second guide column, a spring cable on the electrical control device at the top of the first guide column, the lower end of the spring cable passing through the lower end of the third guide column and connecting to the grab bucket lifting device.

[0006] Preferably, the traveling trolley is rolledly connected to the frame beam, and the first guide post of the rigid telescopic guide post is bolted to the traveling trolley. When the traveling trolley moves laterally on the frame beam, it can drive the rigid telescopic guide post to move synchronously.

[0007] Preferably, the lower end of the third guide post of the rigid telescopic guide post is connected to the grab bucket lifting device by bolts. The rigid telescopic guide post is a publicly available technical structure. When the rigid telescopic guide post is extended or retracted, it can drive the grab bucket lifting device to rise and fall.

[0008] Preferably, the second guide post is slidably connected to the inner wall of the first guide post, and the third guide post is slidably connected to the inner wall of the second guide post. The driving structure inside the rigid telescopic guide post can drive the second guide post and the third guide post to extend and retract during operation.

[0009] Preferably, the upper end of the spring cable is electrically connected to the electrical control device at the top of the first guide post, and the lower end of the spring cable is electrically connected to the grab bucket lifting device. The electrical control device at the top of the first guide post is generally installed on the traveling trolley, and it can control the grabbing of the grab bucket lifting device through the spring cable.

[0010] Preferably, the ultimate tensile length of the spring cable is greater than the ultimate tensile length of the rigid telescopic guide post, the ultimate compressive length of the spring cable is less than the ultimate compressive length of the rigid telescopic guide post, and the cross-sectional diameter of the spring cable is smaller than the narrow side width of the third guide post. This ensures that the spring cable meets the telescopic requirements of the rigid telescopic guide post without deforming during use. It also prevents damage caused by friction between the spring cable and the inner wall of the rigid telescopic guide post during telescopic operation. This avoids the cable becoming disordered at the bottom of the rigid telescopic guide post, thus preventing the cable from tangling and ultimately breaking under stress.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this wiring scheme for a rigid telescopic guide column of a crane, the cable connecting the grab bucket lifting device inside the rigid telescopic guide column is set as a spring cable. The spring cable can meet the telescopic requirements of the rigid telescopic guide column without deforming during use. When the rigid telescopic guide column is telescopic, the spring cable will not contact the inner wall of the guide column, thus avoiding damage caused by friction between the cable and the inner wall of the rigid telescopic guide column. The spring cable itself has tensile strength, which can ensure the "consistency" of the cable in the height direction when the rigid telescopic guide column is working, preventing the cable from "knotting" inside the guide column, thereby avoiding the cable being torn. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the crane of this utility model; Figure 2 This is a schematic diagram showing the state of the spring cable after the rigid telescopic guide post is compressed in this utility model; Figure 3 This is a schematic diagram showing the state of the spring cable after the rigid telescopic guide post has been extended in this utility model. Figure 4 This is a schematic cross-sectional view of the rigid telescopic guide post in this utility model; In the diagram: 1. Chassis beam; 2. Traveling trolley; 3. Rigid telescopic guide column; 4. Grab bucket lifting device; 5. First guide column; 6. Second guide column; 7. Third guide column; 8. Spring cable. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0014] In this embodiment, by Figure 1-4 The present invention includes a frame beam 1, a traveling trolley 2 is provided on the upper end of the frame beam 1, a rigid telescopic guide post 3 is provided on the traveling trolley 2, a grab bucket lifting device 4 is provided at the lower end of the rigid telescopic guide post 3, the rigid telescopic guide post 3 includes a first guide post 5, a second guide post 6 is provided inside the first guide post 5, a third guide post 7 is provided inside the second guide post 6, and a spring cable 8 is provided on the electrical control device at the top of the first guide post 5, the lower end of the spring cable 8 passes through the lower end of the third guide post 7 and connects to the grab bucket lifting device 4.

[0015] The traveling trolley 2 is rolledly connected to the frame beam 1, and the first guide post 5 of the rigid telescopic guide post 3 is bolted to the traveling trolley 2. When the traveling trolley 2 moves laterally on the frame beam 1, it can drive the rigid telescopic guide post 3 to move synchronously.

[0016] Among them, the lower end of the third guide column 7 of the rigid telescopic guide column 3 is connected to the grab bucket lifting device 4 by bolts. The rigid telescopic guide column 3 is a publicly available technical structure. When the rigid telescopic guide column 3 is extended or retracted, it can drive the grab bucket lifting device 4 to rise and fall.

[0017] The second guide post 6 is slidably connected to the inner wall of the first guide post 5, and the third guide post 7 is slidably connected to the inner wall of the second guide post 6. The driving structure inside the rigid telescopic guide post 3 can drive the second guide post 6 and the third guide post 7 to extend and retract during operation.

[0018] The upper end of the spring cable 8 is electrically connected to the electrical control equipment at the top of the first guide post 5, and the lower end of the spring cable 8 is electrically connected to the grab bucket lifting device 4. The electrical control equipment at the top of the first guide post 5 is generally installed on the traveling trolley 2, and it can control the grabbing of the grab bucket lifting device 4 through the spring cable 8.

[0019] Among them, the ultimate tensile length of the spring cable 8 is greater than that of the rigid telescopic guide post 3, the ultimate compressive length of the spring cable 8 is less than that of the rigid telescopic guide post 3, and the cross-sectional diameter of the spring cable 8 is less than the narrow side width of the third guide post 7. In this way, the spring cable 8 can meet the telescopic requirements of the rigid telescopic guide post 3 without deforming during use, and will not be damaged by friction with the inner wall of the rigid telescopic guide post 3 due to its telescopic operation. This avoids the problem of the cable not being able to maintain "order" during the telescopic operation of the rigid telescopic guide post 3, avoiding the cable from becoming disordered at the bottom of the rigid telescopic guide post 3, thus avoiding the cable from "knotting" and ultimately causing the cable to be torn apart by force.

[0020] Working principle: When the traveling trolley 2 moves laterally on the frame beam 1, it can drive the rigid telescopic guide column 3 to move synchronously. When the rigid telescopic guide column 3 extends and retracts, it can drive the grab bucket lifting device 4 to rise and fall. The electrical control equipment at the top of the first guide column 5 can control the grab bucket lifting device 4 through the spring cable 8. The spring cable 8 can meet the extension and retraction requirements of the rigid telescopic guide column 3 without deformation during use. It will also prevent damage caused by friction between the rigid telescopic guide column 3 and the inner wall of the rigid telescopic guide column 3 during extension and retraction. This avoids the problem of the cable not being able to guarantee the "orderliness" of the cable during the extension and retraction of the rigid telescopic guide column 3, and avoids the cable getting messy at the bottom of the rigid telescopic guide column 3, thus preventing the cable from "knotting" and ultimately causing the cable to be torn by force.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wiring structure for a rigid telescopic guide column of a crane, comprising a frame beam (1), characterized in that: The upper end of the frame beam (1) is provided with a traveling trolley (2), the traveling trolley (2) is provided with a rigid telescopic guide column (3), the lower end of the rigid telescopic guide column (3) is provided with a grab bucket lifting device (4), the rigid telescopic guide column (3) includes a first guide column (5), a second guide column (6) is provided inside the first guide column (5), a third guide column (7) is provided inside the second guide column (6), a spring cable (8) is provided on the electrical control device at the top of the first guide column (5), the lower end of the spring cable (8) passes through the lower end of the third guide column (7) and connects to the grab bucket lifting device (4).

2. The wiring structure for a rigid telescopic guide column of a crane according to claim 1, characterized in that: The trolley (2) is rolled to the frame beam (1), and the first guide post (5) of the rigid telescopic guide post (3) is bolted to the trolley (2).

3. The wiring structure for a rigid telescopic guide column of a crane according to claim 1, characterized in that: The lower end of the third guide post (7) of the rigid telescopic guide post (3) is connected to the grab bucket lifting device (4) by bolts.

4. The wiring structure for a rigid telescopic guide column of a crane according to claim 1, characterized in that: The second guide post (6) is slidably connected to the inner wall of the first guide post (5), and the third guide post (7) is slidably connected to the inner wall of the second guide post (6).

5. The wiring structure for a rigid telescopic guide column of a crane according to claim 1, characterized in that: The upper end of the spring cable (8) is electrically connected to the electrical control equipment at the top of the first guide post (5), and the lower end of the spring cable (8) is electrically connected to the grab bucket lifting device (4).

6. The wiring structure for a rigid telescopic guide column of a crane according to claim 1, characterized in that: The ultimate tensile length of the spring cable (8) is greater than the ultimate tensile length of the rigid telescopic guide post (3), the ultimate compression length of the spring cable (8) is less than the ultimate compression length of the rigid telescopic guide post (3), and the cross-sectional diameter of the spring cable (8) is less than the narrow side width of the third guide post (7).

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