Container spreader telescopic follow-up device

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By designing a container spreader telescopic follower device, using the combination of follow-up structure and induction switch, the problem of position signal loss during the expansion and contraction of traditional spreaders is solved, and efficient and accurate lifting operations are achieved.

CN222433867UActive Publication Date: 2025-02-07SHEKOU CONTAINER TERMINALS +2

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Patent Information

Application Number: CN202421185073.8
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-28
Publication Date: 2025-02-07
Estimated Expiration: 2034-05-28

AI Technical Summary

Technical Problem

During the expansion and contraction process of traditional container spreaders, due to the large limit sensing gap, the position signal is lost, which seriously affects the working efficiency.

Method used

A container spreader telescopic follow-up device is designed, including a support base, a follow-up structure, a bracket, an induction switch and a wear-resistant structure. The follow-up structure realizes flexible movement through the support cylinder, spring and follow-up shaft. The induction switch monitors the length of the telescopic rod through the bracket and wear-resistant structure to ensure the stability of the position signal.

Benefits of technology

It effectively avoids the loss of position signals during the expansion and contraction of the spreader, improves operating efficiency and position accuracy, and ensures the efficiency and accuracy of the hoisting container.

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Abstract

The utility model relates to a telescopic follow-up device of a container spreader, which comprises a support base provided with first mounting holes at intervals; the follow-up structure is supported on the first mounting holes; the support is supported on the follow-up structure and on the side of the follow-up structure; the plurality of inductive switches are arranged on the bracket on the side of the follow-up structure at intervals; the wear-resistant structure is supported on the bracket positioned on the follow-up structure and is used for supporting a telescopic rod of a lifting appliance; when the telescopic rod of the lifting appliance is used for lifting operation, the follow-up structure is stressed to drive the support, the wear-resistant structure and the telescopic rod to reciprocate in the vertical direction, and the inductive switches monitor the extension length of the telescopic rod of the lifting appliance. According to the scheme of the utility model, the position signal of the telescopic rod of the lifting appliance can be effectively ensured not to be lost, the position monitoring accuracy of the telescopic rod of the lifting appliance is ensured, the operation efficiency of lifting containers is effectively improved, and the operation quality is ensured.

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Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for shore container spreaders, in particular to a telescopic follower device for container spreaders. Background Art

[0002] At present, the container loading and unloading of ships mainly adopts spreaders. However, since containers have various specifications, such as 20 feet, 40 feet, 45 feet, etc., when loading and unloading containers, the spreaders need to be adjusted to the position that matches the size of the container through telescopic adjustment. During the process of spreader extension and retraction, the traditional spreader extension position is controlled by a fixed limit switch. Therefore, during the operation, the limit sensing gap caused by the swing of the telescopic beam is often too large, resulting in the loss of position signal failure, which seriously affects the operation efficiency. Utility Model Content

[0003] The utility model aims to solve at least one technical problem in the background technology and provide a container spreader telescopic follower device.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a container spreader telescopic follower device, comprising:

[0005] A support base with first mounting holes arranged at intervals;

[0006] A follower structure, supported on each of the first mounting holes;

[0007] A bracket, supported on the follower structure and on the side of the follower structure;

[0008] A plurality of induction switches are arranged at intervals on the bracket located on the side of the follower structure;

[0009] A wear-resistant structure, supported on the bracket located on the follower structure, for supporting the telescopic rod of the spreader;

[0010] During the lifting operation through the telescopic rod of the lifting device, the follower structure is subjected to force to drive the bracket, the wear-resistant structure and the telescopic rod to move back and forth in the vertical direction, and each of the induction switches monitors the extension length of the telescopic rod of the lifting device.

[0011] According to one aspect of the utility model, the follower structure comprises: a support cylinder, a spring, a spring base and a follower shaft;

[0012] The support tube is supported above the first mounting hole, and is provided with a mounting cavity and an upper through hole;

[0013] The spring is arranged in the mounting cavity;

[0014] The spring base is connected to the first mounting hole and is used to support the spring;

[0015] One end of the follower shaft passes through the upper through hole and is supported on the spring, and the other end is connected to the bracket.

[0016] According to one aspect of the utility model, a nozzle mounting hole communicating with the mounting cavity is provided on the side wall of the support cylinder.

[0017] According to one aspect of the utility model, the bracket includes: a first support plate and a second support plate;

[0018] The first support plate is supported on the top end of the follower shaft;

[0019] The second support plate is vertically connected to the bottom of one end of the first support plate and is located on the side of the support tube.

[0020] According to one aspect of the utility model, a mounting groove is provided on the second support plate, and the induction switches are arranged in the mounting groove at intervals through induction switch clips.

[0021] According to one aspect of the utility model, the wear-resistant structure is made of ultra-high molecular weight polyethylene.

[0022] According to a scheme of the utility model, a container spreader telescopic follower device comprises: a support base, with first mounting holes arranged at intervals; a follower structure, supported on each first mounting hole; a bracket, supported on the follower structure and on the side of the follower structure; a plurality of induction switches, arranged at intervals on the bracket located on the side of the follower structure; a wear-resistant structure, supported on the bracket located on the follower structure, used to support the telescopic rod of the spreader; when the telescopic rod of the spreader is used for lifting, the follower structure is forced to drive the bracket, the wear-resistant structure and the telescopic rod to move back and forth in the vertical direction, and each induction switch monitors the extension length of the telescopic rod of the spreader. In this way, when the telescopic rod of the spreader is used for lifting and lowering the container, the telescopic rod is forced to move up and down, and the follower structure will follow the up and down movement according to the up and down movement of the telescopic rod, and the bracket moves up and down with the follower structure, so that the distance between the induction switch and the corresponding induction plate arranged on the telescopic rod remains unchanged, so that the position signal of the telescopic rod of the spreader will not be lost, the operation efficiency will be guaranteed, and the lifting position accuracy will be guaranteed.

[0023] According to one solution of the utility model, the follower structure includes: a support tube, a spring, a spring base and a follower shaft; the support tube is supported above the first mounting hole, and is provided with a mounting cavity and an upper through hole; the spring is arranged in the mounting cavity; the spring base is connected to the first mounting hole, and is used to support the spring; one end of the follower shaft passes through the upper through hole and is supported on the spring, and the other end is connected to the bracket. In this way, the support tube can be used to limit the follower shaft to move only in the vertical direction, the spring base can be used to support the spring, and the spring can be used to achieve reciprocating motion of the follower shaft after being stressed, and a buffering effect can be achieved, thereby ensuring the flexibility of the follower structure and effectively improving the service life.

[0024] According to one solution of the utility model, a nozzle installation hole connected to the installation cavity is provided on the side wall of the support tube. With such a configuration, an oil nozzle can be installed through the nozzle installation hole to lubricate the spring. Of course, the spring inside the support tube can also be observed through the nozzle installation hole to see if there is any abnormality.

[0025] According to one solution of the utility model, the bracket includes: a first support plate and a second support plate; the first support plate is supported on the top of the follower shaft; the second support plate is vertically connected to the bottom of one end of the first support plate and is located on the side of the support tube. With such a configuration, the first support plate can be supported on the top of the follower shaft to move up and down together with the follower shaft, and the second support plate can be supported on the side of the support tube to install the induction switch, so that the surrounding space of the support tube is effectively utilized, and the second support plate can move up and down with the first support plate and the follower shaft, thereby ensuring that the induction switch and the telescopic rod move up and down together, ensuring that the distance between the two remains unchanged, and ensuring that the position signal of the telescopic rod is not lost.

[0026] According to the scheme of the utility model, the utility model can effectively ensure that the position signal of the telescopic rod of the spreader will not be lost, ensure the accuracy of the position monitoring of the telescopic rod of the spreader, effectively improve the operation efficiency of lifting containers, and ensure the operation quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A perspective view schematically showing a container spreader telescopic follower device according to an embodiment of the utility model;

[0028] Figure 2 A diagram schematically showing a use state of a telescopic follower device for a container spreader according to an embodiment of the utility model;

[0029] Figure 3 The structural arrangement diagram of the follower structure according to one embodiment of the utility model is schematically shown. DETAILED DESCRIPTION

[0030] The present invention will now be discussed with reference to exemplary embodiments. It should be understood that the embodiments discussed are only intended to enable those skilled in the art to better understand and implement the present invention, rather than to imply any limitation on the scope of the present invention.

[0031] As used herein, the term "including" and variations thereof are to be interpreted as open-ended terms meaning "including, but not limited to." The term "based on" is to be interpreted as "based, at least in part, on." The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment."

[0032] Figure 1 A perspective view schematically showing a container spreader telescopic follower device according to an embodiment of the utility model; Figure 2 The following is a schematic diagram showing the use state of the container spreader telescopic follower according to an embodiment of the present utility model. Figure 1 and Figure 2 As shown, in this embodiment, the container spreader telescopic follower device includes:

[0033] A support base 1, with first mounting holes 2 arranged at intervals;

[0034] A follower structure 3, supported on each first mounting hole 2;

[0035] A bracket 4, supported on the follower structure 3 and on the side of the follower structure 3;

[0036] A plurality of induction switches 5 are arranged at intervals on a bracket 4 located on the side of the follower structure 3;

[0037] The wear-resistant structure 6 is supported on a bracket 4 located on the follower structure 3 and is used to support the telescopic rod 18 of the spreader;

[0038] During the lifting operation through the telescopic rod 18 of the spreader, the follower structure 3 is forced to drive the bracket 4, the wear-resistant structure 6 and the telescopic rod to move back and forth in the vertical direction, and each induction switch 5 monitors the extension length of the telescopic rod of the spreader. In this way, when the telescopic rod of the spreader is performing a lifting operation involving lifting and lowering a container, the telescopic rod 18 is forced to move up and down. At this time, the follower structure 3 will follow the up and down movement according to the up and down movement of the telescopic rod 18, and the bracket 4 moves up and down with the follower structure, which can effectively ensure that the distance between the induction switch 5 and the corresponding induction plate 19 arranged on the telescopic rod 18 remains unchanged, which can ensure that the position signal of the telescopic rod of the spreader will not be lost, ensure the operation efficiency, and ensure the lifting position accuracy.

[0039] Further, Figure 3 The following schematically shows the structural arrangement of the follower structure according to one embodiment of the present utility model. Figure 3As shown, in this embodiment, the follower structure 3 includes: a support cylinder 7, a spring 8, a spring base 9 and a follower shaft 10;

[0040] The support tube 7 is supported above the first mounting hole 2 and is provided with a mounting cavity 11 and an upper through hole 12;

[0041] The spring 8 is arranged in the mounting cavity 11;

[0042] The spring base 9 is connected to the first mounting hole 2 and is used to support the spring 8;

[0043] One end of the follower shaft 10 passes through the upper through hole 12 and is supported on the spring 8, and the other end is connected to the bracket 4. In this way, the support tube 7 can be used to limit the follower shaft 10 to move only in the vertical direction, and the spring 8 can be supported by the spring base 9. The spring 8 can realize the reciprocating motion of the follower shaft 10 after being stressed, and can achieve a buffering effect, ensure the flexibility of the follower structure, and effectively improve the service life.

[0044] Furthermore, if Figure 3 As shown, in this embodiment, a nozzle mounting hole 13 communicating with the mounting cavity 11 is provided on the side wall of the support tube 7. In this way, the nozzle can be installed through the nozzle mounting hole 13 to lubricate the spring 8. Of course, the nozzle mounting hole 13 can also be used to observe whether the spring 8 inside the support tube 7 is abnormal.

[0045] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, the bracket 4 includes: a first support plate 14 and a second support plate 15;

[0046] The first support plate 14 is supported on the top end of the follower shaft 10;

[0047] The second support plate 15 is vertically connected to the bottom of one end of the first support plate 14 and is located on the side of the support tube 7. In this way, the first support plate 14 can be supported on the top of the follower shaft 10 to move up and down together with the follower shaft 10, and the second support plate 15 can be supported on the side of the support tube 7 to install the induction switch 5, so that the surrounding space of the support tube 7 is effectively utilized, and the second support plate 15 can move up and down with the first support plate 14 and the follower shaft 10, so as to ensure that the induction switch 5 and the telescopic rod 18 move up and down together, ensure that the distance between the two remains unchanged, and ensure that the position signal of the telescopic rod 18 will not be lost.

[0048] Furthermore, if Figure 1 and Figure 2As shown, in this embodiment, the second support plate 15 is provided with a mounting groove 16, and each induction switch 5 is arranged in the mounting groove 16 at intervals through an induction switch clip 17. In this way, the position of each induction switch can be set according to the size specification of the container, so as to realize monitoring of the telescopic rod 18 with a corresponding extension length, thereby ensuring the position accuracy of the monitoring.

[0049] Furthermore, in this embodiment, the wear-resistant structure 6 is made of ultra-high molecular weight polyethylene. This arrangement can make the wear-resistant structure 6 supporting the telescopic rod 18 have the advantages of high wear resistance, anti-aging and good impact resistance, and also ensure the service life and reliability of the follower structure.

[0050] Moreover, in this embodiment, the utility model can use multiple M12x50 hexagonal bolts to be installed to the opposite side of the auxiliary sprocket box of the main beam of the sling through the second mounting hole 20 on the support base 1 to ensure that the entire device is firmly fixed, so as to facilitate the abutment contact between the telescopic rod and the wear-resistant structure 6.

[0051] According to the above scheme of the utility model, the utility model can effectively ensure that the position signal of the telescopic rod of the spreader will not be lost, ensure the accuracy of the position monitoring of the telescopic rod of the spreader, effectively improve the operation efficiency of lifting containers, and ensure the operation quality.

[0052] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. The container spreader telescopic follower device is characterized by: include: A support base (1) having first mounting holes (2) arranged at intervals; A follower structure (3) supported on each of the first mounting holes (2); A bracket (4) supported on the follower structure (3) and on the side of the follower structure (3); A plurality of induction switches (5) are arranged at intervals on the bracket (4) located on the side of the follower structure (3); A wear-resistant structure (6), supported on the bracket (4) located on the follower structure (3), and used for supporting the telescopic rod of the sling; During the lifting operation using the telescopic rod of the lifting device, the follower structure (3) is subjected to force to drive the bracket (4), the wear-resistant structure (6) and the telescopic rod to move back and forth in the vertical direction, and each of the induction switches (5) monitors the extension length of the telescopic rod of the lifting device.

2. The container spreader telescopic follower device according to claim 1, characterized in that: The follower structure (3) comprises: a support cylinder (7), a spring (8), a spring base (9) and a follower shaft (10); The support tube (7) is supported above the first mounting hole (2), and is provided with a mounting cavity (11) and an upper through hole (12); The spring (8) is arranged in the installation cavity (11); The spring base (9) is connected to the first mounting hole (2) and is used to support the spring (8); One end of the follower shaft (10) passes through the upper through hole (12) and is supported on the spring (8), and the other end is connected to the bracket (4).

3. The container spreader telescopic follower device according to claim 2, characterized in that: The side wall of the support cylinder (7) is provided with an oil nozzle mounting hole (13) communicating with the mounting cavity (11).

4. The container spreader telescopic follower device according to claim 2, characterized in that: The support (4) comprises: a first support plate (14) and a second support plate (15); The first support plate (14) is supported on the top end of the follower shaft (10); The second support plate (15) is vertically connected to the bottom of one end of the first support plate (14) and is located on the side of the support tube (7).

5. The container spreader telescopic follower device according to claim 4, characterized in that: The second support plate (15) is provided with a mounting groove (16), and the induction switches (5) are arranged in the mounting groove (16) at intervals via induction switch clips (17).

6. The container spreader telescopic follower device according to any one of claims 1 to 5, characterized in that: The wear-resistant structure (6) is made of ultra-high molecular weight polyethylene.