Maintenance fixing device for seaport variable frequency cable drum

Abstract

The utility model belongs to the technical field of cable drums, and particularly relates to a maintenance fixing device for a seaport variable-frequency cable drum, which comprises a base, a supporting rod and a fixing device. The limiting seat is U-shaped and is positioned at the top of the supporting rod; two avoiding grooves are formed in each of two side plates of the limiting seat, and limiting rods in sliding fit with the avoiding grooves are arranged in the avoiding grooves; two positioning holes are formed in the limiting rod at intervals, and baffles are arranged at the two ends of the limiting rod; the two guide pipes are arranged on the inner side of one side wall of the limiting seat and comprise the upper guide pipe and the lower guide pipe; the upper guide pipe is located above the two limiting rods, and the lower guide pipe is located below the two limiting rods. And the positioning rod sequentially penetrates through the upper guide pipe, the two positioning holes and the lower guide pipe from top to bottom. The cable drum can solve the problem that when the cable drum is not used, the cable drum possibly rotates at will, and potential safety hazards exist, and has good market application prospects.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable reels, and in particular relates to a maintenance and fixing device for a frequency conversion cable reel in a seaport. Background Art

[0002] Cable reels are cable winding devices that provide power, control power or control signals for large mobile equipment. Cable reels are widely used in heavy machinery equipment with similar working conditions, such as port gantry cranes, container cranes, ship loaders, tower cranes, etc.

[0003] The patent with application number CN201921786477.1 discloses a new type of variable frequency cable reel, including a spliced ​​turntable, an electric control box, a reduction box, a servo motor, a mounting plate and a turntable clamping device. The spliced ​​turntable is movably mounted on the turntable clamping device, the output end of the servo motor is connected to the input end of the reduction box, the output end of the reduction box is connected to the turntable clamping device, the mounting plate is fixedly mounted on the outer surface of one side of the electric control box by bolts, the reduction box is fixedly mounted on the upper end outer surface of the electric control box, and the spliced ​​turntable includes a first semi-circular disk and a second semi-circular disk, and the outer surface of one side of the first semi-circular disk close to the second semi-circular disk is welded with several groups of L-shaped fixing plates. The new type of variable frequency cable reel can solve the shortcomings of the existing cable reel, such as large volume, inconvenient production and assembly, inconvenient and loose fixation of the turntable, and uneven cable winding. However, when the cable reel is not in use, it may be blown by wind or accidentally collided and rotated at will, which may cause the cable to be tangled and winding, posing a safety hazard.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a maintenance and fixing device for a frequency conversion cable drum in a seaport, so as to solve the problem that the cable drum may rotate randomly when not in use, thus posing a potential safety hazard.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A maintenance and fixing device for a frequency conversion cable reel in a seaport, comprising:

[0008] A base, with a support rod disposed above one end;

[0009] The limit seat is in a "U" shape and is located at the top of the support rod. Two avoidance grooves are provided on both side plates of the limit seat, and limit rods slidably matched with the avoidance grooves are arranged in the avoidance grooves. Two positioning holes are spaced apart on the limit rods, and baffles are arranged at both ends thereof.

[0010] The guide tubes, two guide tubes are provided on the inner side of one side wall of the limit seat, which are divided into an upper guide tube and a lower guide tube. The upper guide tube is located above the two limit rods, and the lower guide tube is located below the two limit rods.

[0011] The positioning rod sequentially passes through the upper guide tube, the two positioning holes and the lower guide tube from top to bottom.

[0012] Preferably, a positioning bolt is provided on the side wall of the limit seat where the guide tube is installed. A chain one is connected to the positioning bolt, and the other end of the chain one is connected to the top end of the positioning rod.

[0013] Preferably, a connecting bolt is provided on the baffle at the end of the limit rod away from the guide tube. The connecting bolts on the two limit rods are connected by a chain two.

[0014] Preferably, the support rod includes a first support section and a second support section. The first support section includes two symmetric first support rods, and a connecting plate one is provided at the top of the two first support rods. The second support section is located above the first support section and includes two symmetric second support rods. A connecting plate two is provided at the bottom of the two second support rods, and the connecting plate two is fixedly connected to the connecting plate one by bolts.

[0015] Preferably, an installation plate one is provided between the two second support rods, and a junction box is installed on the installation plate one. An installation plate two is provided between the two side plates of the limit seat, and two proximity switches connected to the junction box are provided on the installation plate two.

[0016] Preferably, two protective frames are further provided on the installation plate two. The front end and the bottom of the protective frame are provided with openings, and the rear end is fixed to the installation plate two by bolts. The two proximity switches are respectively located in the protective frames at corresponding positions.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] (1) For the maintenance fixing device of the seaport variable-frequency cable reel of the utility model, by manually adjusting the position of the limit rod, the positioning rod enters the positioning holes at different positions, so as to realize the fixing of the cable reel, which can prevent the cable reel from rotating randomly when not in use and eliminate potential safety hazards.

[0019] (2) In the maintenance and fixing device for the frequency conversion cable reel of the harbor of the utility model, a proximity switch is installed on the second mounting plate on one side of the two limit rods, which can detect the position change of the limit rods and transmit the signal to the PLC controlling the cable reel drive motor through the junction box, thereby avoiding the drive motor from rotating accidentally when the limit rods are used to fix the cable reel.

[0020] (3) In the maintenance and fixing device for the frequency conversion cable reel of the seaport of the utility model, the positioning rod is connected to the positioning bolt on the limit seat by chain 1, so as to avoid the situation that the positioning rod is lost and cannot be found; the two limit rods are connected by chain 2, and the two limit rods can be moved backward at the same time by pulling chain 2, so as to quickly disengage from the limit of the cable reel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an external schematic diagram of the utility model;

[0022] Figure 2 It is a side schematic diagram of the utility model;

[0023] Figure 3 It is a top view of the utility model;

[0024] Description of main reference numerals:

[0025] 1. Base; 2. Limit seat; 3. Limit rod; 4. Positioning hole; 5. Baffle; 6. Upper guide tube; 7. Lower guide tube; 8. Positioning rod; 9. Positioning bolt; 10. Connecting bolt; 11. First support rod; 12. Connecting plate 1; 13. Second support rod; 14. Connecting plate 2; 15. Mounting plate 1; 16. Junction box; 17. Mounting plate 2; 18. Proximity switch; 19. Protective frame. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solution of the utility model patent. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the connection inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Refer to the attached Figure 1-3 , a maintenance fixing device for a seaport variable-frequency cable reel, comprising:

[0030] A base 1, with a support rod above one end thereof; the support rod includes a first support section and a second support section that are convenient to disassemble; the first support section includes 2 symmetric first support rods 11, and a connecting plate one 12 is provided at the top of the 2 first support rods 11; the second support section is located above the first support section and includes 2 symmetric second support rods 13; a connecting plate two 14 is provided at the bottom of the 2 second support rods 13, and the connecting plate two 14 is fixedly connected to the connecting plate one 12 by bolts;

[0031] A limit seat 2, in a "U" shape, located at the top of the support rod; 2 avoidance grooves are provided on both side plates of the limit seat 2, and limit rods 3 that are slidably matched with the avoidance grooves are provided in the avoidance grooves; 2 positioning holes 4 are spaced apart on the limit rods 3, and baffles 5 are provided at both ends thereof to prevent the limit rods 3 from slipping out of the avoidance grooves;

[0032] Guide tubes, 2 are provided on the inner side of one side wall of the limit seat 2, which are divided into an upper guide tube 6 and a lower guide tube 7; the upper guide tube 6 is located above the 2 limit rods 3, and the lower guide tube 7 is located below the 2 limit rods 3;

[0033] A positioning rod 8 passes through the upper guide tube 6, the 2 positioning holes 4, and the lower guide tube 7 from top to bottom.

[0034] In this embodiment, a positioning bolt 9 is provided on the side wall of the limit seat 2 where the guide tube is installed; a chain one is connected to the positioning bolt 9, and the other end of the chain one is connected to the top end of the positioning rod 8. When the positioning rod 8 is not inserted into the guide tube and the positioning hole 4, it can be hung on the limit seat 2 through the chain one to avoid the situation that the positioning rod 8 is lost and cannot be found.

[0035] A connecting bolt 10 is provided on the baffle 5 at the end of the limit rod 3 away from the guide tube; the connecting bolts 10 on the 2 limit rods 3 are connected by a chain two. When the positioning rod 8 is taken out from the corresponding positioning hole 4, the staff can pull the chain two to quickly disengage the limit of the cable reel by the limit rods 3.

[0036] On the other hand, a mounting plate 15 is provided between the two second support rods 13, and a junction box 16 is installed on the mounting plate 15; a mounting plate 2 17 is provided between the two side plates of the limit seat 2, and two proximity switches 18 connected to the junction box 16 are provided on the mounting plate 2 17. The proximity switch 18 uses an inductive proximity switch BI10-M30-AZ3X.

[0037] When the limit rod 3 is pushed into the cable drum for limit fixing, the proximity switch 18 is triggered, and the signal is transmitted to the PLC controlling the cable drum through the transmission line at the bottom of the junction box 16. At this time, the drive motor of the cable drum will not start working to avoid damaging the cable drum.

[0038] It should be noted that there is an indicator light on the proximity switch 18. When the indicator light is on, it indicates that the limit rod 3 has not entered the cable drum for limiting; when the indicator light is off, it indicates that the proximity switch 18 is triggered and the limit rod 3 has entered the cable drum.

[0039] In addition, two protective frames 19 are provided on the second mounting plate 17; openings are provided at the front end and the bottom of the protective frame 19, and the rear end thereof is fixed to the second mounting plate 17 by bolts; the two proximity switches 18 are respectively located in the protective frames 19 at corresponding positions, and the protective frames 19 can shield the proximity switches 18 from wind and rain without blocking the indicator lights of the proximity switches 18.

[0040] In actual use, the staff pulls out the positioning rod 8 from the guide tube, and then manually pushes the two limiting rods 3 toward the cable drum, so that the two limiting rods 3 clamp one of the rods on the cable drum, and the limiting fixing function can be realized. In order to prevent the limiting rod 3 from retreating backward, the staff needs to reinsert the pulled out positioning rod 8 into the guide tube and insert it into the positioning hole 4 at the rear position. When the cable drum needs to be used, the positioning rod 8 is pulled out again, and the chain 2 is pulled to make the two limiting rods 3 disengage from the limiting fixing of the cable drum.

[0041] The maintenance and fixing device for the frequency conversion cable reel in the harbor of the present invention realizes the limiting and fixing of the cable reel by moving the limit rod 3 so that the positioning rod 8 cooperates with the positioning holes 4 at different positions on the limit rod 3, which is very convenient; by transmitting a signal to the PLC that controls the operation of the cable reel through the proximity switch 18, damage to the cable reel can be effectively avoided. The utility model is very practical and has a good market application prospect.

[0042] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A maintenance and fixing device for a frequency conversion cable reel in a seaport, characterized in that: Comprising: A base, with a support rod provided above one end thereof. A limit seat, in a "U" shape, located at the top of the support rod; two avoidance grooves are provided on each of the two side plates of the limit seat, and limit rods slidably matched therewith are provided in the avoidance grooves; two positioning holes are spaced apart on the limit rods, and baffles are provided at both ends thereof. Guide tubes, two of which are provided on the inner side of one side wall of the limit seat, and are divided into an upper guide tube and a lower guide tube; the upper guide tube is located above the two limit rods, and the lower guide tube is located below the two limit rods. A positioning rod, which sequentially passes through the upper guide tube, the two positioning holes and the lower guide tube from top to bottom.

2. The maintenance and fixing device for the frequency conversion cable reel of the seaport according to claim 1 is characterized in that: A positioning bolt is provided on the side wall of the limit seat where the guide tube is installed; a first chain is connected to the positioning bolt, and the other end of the first chain is connected to the top end of the positioning rod.

3. The maintenance and fixing device for the frequency conversion cable reel of the seaport according to claim 1 is characterized in that: A connection bolt is provided on the baffle at the end of the limit rod away from the guide tube; the connection bolts on the two limit rods are connected by a second chain.

4. The maintenance and fixing device for the frequency conversion cable reel of the seaport according to claim 1 is characterized in that: The support rod includes a first support section and a second support section; the first support section includes two symmetric first support rods, and a first connecting plate is provided at the top of the two first support rods; the second support section is located above the first support section and includes two symmetric second support rods; a second connecting plate is provided at the bottom of the two second support rods, and the second connecting plate is fixedly connected to the first connecting plate by bolts.

5. The maintenance and fixing device for the frequency conversion cable reel of the seaport according to claim 4 is characterized in that: An installation plate one is provided between the two second support rods, and a junction box is installed on the installation plate one; an installation plate two is provided between the two side plates of the limit seat, and two proximity switches connected to the junction box are provided on the installation plate two.

6. The maintenance and fixing device for the frequency conversion cable reel of the seaport according to claim 5 is characterized in that: Two protective frames are further provided on the installation plate two; openings are provided at the front end and the bottom of the protective frame, and the rear end thereof is fixed to the installation plate two by bolts; the two proximity switches are respectively located in the protective frames at corresponding positions.

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