Improved protection device for signal cable

Abstract

The utility model relates to the technical field of cable cranes, and discloses an improved protective device for a signal cable, which comprises a cable crane main beam steel plate and a cable body positioned at the lower end of the cable crane main beam steel plate, the lower end of the cable crane main beam steel plate is symmetrically connected with a group of mounting plates, the corresponding outer walls of the mounting plates are provided with connecting grooves, and the inner walls of the connecting grooves are connected with buffer springs; a protection device body is arranged between the mounting plates, and the two ends of the protection device body are connected with connecting assemblies. Through the protection device body connected with the lower end of the cable crane main beam steel plate, the cable body bounces to collide with the protection device, the connection assemblies at the two ends are driven under the action of force generated by collision of the protection device body and the cable body, the connection assemblies are buffered through the buffer springs, and force unloading of the cable body is achieved; therefore, the cable body is protected, and the service life of the cable body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cable cranes, in particular to a protection device for an improved signal cable. Background Art

[0002] The oil distribution on the cable crane is used as a mobile power supply device. The cable crane is equipped with cable drums, namely a power cable drum (for winding the AC10kV on-board cable) and a signal cable drum (for winding the communication cable on-board). The power cable drum is of the hysteresis type, and the signal cable drum is controlled by a torque motor and is equipped with a voltage regulator for fine adjustment. The cable drum runs together with the traveling mechanism.

[0003] The signal cable drum is part of the signal transmission between the electrical room and the driver's cab of the cable crane, and the torque motor of the communication cable is for the normal operation of the signal transmission between the electrical room and the driver's cab of the cable crane. The full-pass signal cable is a cable retracting and deploying device for rail-mounted electrical equipment.

[0004] However, there are some problems in the prior art: when the signal cable drum of the cable crane works, at the moment of starting, the torque transmitted by the signal cable is relatively large, which causes the signal cable to bounce up. The signal cable hits the steel plate of the main beam of the cable crane. When the torque of the signal cable is too large, the signal cable will always contact the steel plate of the main beam of the cable crane. Prolonged contact with the edges and corners of the steel plate of the main beam of the cable crane will damage the outer skin of the signal cable, and seriously damage the inner core of the signal cable. Therefore, we propose a protection device for an improved signal cable. Content of the Utility Model

[0005] In view of the problems existing in the above technology, the utility model provides a protection device for an improved signal cable, which solves the problems that when the signal cable drum of the cable crane works, at the moment of starting, the torque transmitted by the signal cable is relatively large, which causes the signal cable to bounce up. The signal cable hits the steel plate of the main beam of the cable crane. When the torque of the signal cable is too large, the signal cable will always contact the steel plate of the main beam of the cable crane. Prolonged contact with the edges and corners of the steel plate of the main beam of the cable crane will damage the outer skin of the signal cable, and seriously damage the inner core of the signal cable.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A protection device for an improved signal cable includes a steel plate of the main beam of the cable crane and a cable body located at the lower end of the steel plate of the main beam of the cable crane. A group of mounting plates are symmetrically connected to the lower end of the steel plate of the main beam of the cable crane. An inwardly recessed connecting groove is provided on the outer wall of the corresponding side of the mounting plate, and a buffer spring is installed inside the upper end of the connecting groove; A protection device body is arranged between the mounting plates. The protection device body is located above the cable body. Both ends of the protection device body are connected with detachable connecting components. The protection device body extends into the connecting groove through the connecting components and is slidably connected with the mounting plate. The connecting components are located at the lower end of the buffer spring and are in contact with the buffer spring.

[0008] Further, a set of limiting grooves are correspondingly provided inside the mounting plate. The limiting grooves are located on both sides of the connecting groove and communicate with each other. The cross-sections of the limiting grooves and the connecting groove are arranged in a convex shape. Buffer springs extending downward are connected to the inner walls of the upper ends of the limiting grooves and the connecting groove.

[0009] Further, the connecting assembly includes a backing plate. On one side of the backing plate close to the mounting plate, a pin plate is connected. The pin plate is inserted into the connecting groove and contacts the buffer spring. The pin plate is located at the lower end of the buffer spring.

[0010] Further, inwardly recessed telescopic grooves are provided on the outer walls of the front and rear sides of the pin plate. Telescopic springs are connected to the inner walls of the telescopic grooves. Positioning blocks are provided on the outer walls of the front and rear sides of the pin plate. The positioning blocks extend into the telescopic grooves. One end of the positioning block located inside the telescopic groove is connected with a limiting block. The limiting block contacts the telescopic spring. And the pin plate extends into the limiting groove through the positioning block.

[0011] Further, a connecting piece is connected to the outer wall of the other side of the backing plate. The backing plate is connected to the protection device body through the connecting piece. The connecting piece includes a threaded sleeve fixedly connected to the outer wall of the backing plate and a threaded shaft. A rotating handle is formed in the middle of the threaded shaft. One side of it is a smooth shaft section connected to the protection body, and the other side is a threaded shaft section connected to the threaded sleeve.

[0012] Further, the protection body includes a first steel pipe and a second steel pipe rotatably sleeved outside the first steel pipe. The pipe orifices on both sides of the first steel pipe are inserted into the smooth shaft section of the threaded shaft.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. Through the protection device body connected to the lower end of the steel plate of the main beam of the cable crane of the present utility model, when the signal cable reel of the cable crane works, at the moment of starting, the torque transmitted by the cable body is relatively large when the signal cable reel starts, causing the cable body to bounce and collide with the protection device. Under the action of the force generated by the collision between the protection device body and the cable body, the connecting components at both ends are driven, and the buffer springs are used to buffer the connecting components, so as to unload the force on the cable body, thereby protecting the cable body and improving the service life of the cable body;

[0015] 2. By inserting the pin block into the connecting groove to limit the backing plate, and during the insertion process, first move the positioning blocks on both sides into the telescopic grooves, so that the positioning blocks drive the telescopic springs to contract into the telescopic grooves, which is convenient for the pin plate to be inserted into the connecting groove. And when the telescopic groove is located inside the limiting groove, without the limiting effect on the positioning block, the telescopic spring rebounds, driving the positioning block to extend into the limiting groove to limit the pin plate, which is convenient for the connection between the connecting component and the mounting plate;

[0016] 3. The threaded shaft of the present utility model is placed in the pipeline of the first steel pipe through an opening. By rotating the handle, the threaded shaft moves outward inside the threaded sleeve, and one end of the threaded shaft located outside the threaded sleeve extends into the interior of the pipeline of the first steel pipe, realizing the connection between the connection component and the protection device body, which facilitates the disassembly and assembly between the two. Description of the Drawings

[0017] Figure 1 is the front view structural schematic diagram provided by the embodiment of the present utility model;

[0018] Figure 2 is the side view schematic diagram of the mounting plate provided by the embodiment of the present utility model;

[0019] Figure 3 is the connection schematic diagram of the mounting plate and the connection component provided by the embodiment of the present utility model;

[0020] Figure 4 is the cross-sectional schematic diagram of the connection component provided by the embodiment of the present utility model;

[0021] Figure 5 is the connection schematic diagram of the connecting piece and the protection device body provided by the embodiment of the present utility model;

[0022] Figure 6 is the cross-sectional schematic diagram of the protection device body provided by the embodiment of the present utility model;

[0023] In the figure: 1. Cable machine main beam steel plate; 2. Connection component; 3. Protection device body; 4. Cable body; 11. Mounting plate; 21. Spacer; 22. Connecting piece; 23. Pin plate; 24. Positioning block; 31. First steel pipe; 32. Second steel pipe; 111. Connection groove; 112. Buffer spring; 113. Limit groove; 221. Threaded sleeve; 222. Threaded shaft; 231. Telescopic groove; 232. Telescopic spring; 241. Limit block; 311. Opening; 2221. Handle. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings of the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] An improved signal cable protection device provided in this embodiment is as Figure 1As shown, the protective device for the improved signal cable includes the steel plate 1 of the cable machine main beam, and the cable body 4 located at the lower end of the steel plate 1 of the cable machine main beam. In this embodiment, a set of mounting plates 11 are symmetrically connected to the lower end of the steel plate 1 of the cable machine main beam; at the same time, as Figure 2 shown, on the outer wall of the corresponding side of the mounting plate 11, there is a recessed connecting groove 111, and a buffer spring 112 is installed on the inner wall of the connecting groove 111. As Figure 1 shown, a protective device body 3 is provided between the mounting plates 11. The protective device body 3 is located above the cable body 4. Both ends of the protective device body 3 are connected with detachable connecting components 2. The protective device body 3 extends into the inside of the connecting groove 111 through the connecting components 2 and is slidably connected with the mounting plate 11. The connecting component 2 is located at the lower end of the buffer spring 112 and contacts the buffer spring 112.

[0026] The protective device for the improved signal cable is connected with the protective device body 3 at the lower end of the steel plate 1 of the cable machine main beam. When the signal cable reel of the cable machine works, at the moment of starting, the torque transmitted by the cable body 4 is relatively large, causing the cable body 4 to bounce and collide with the protective device body 3. Under the action of the force generated by the collision between the protective device body 3 and the cable body 4, the connecting components 2 at both ends are driven, and the buffer spring 112 is used to buffer the connecting components 2, so as to unload the force on the cable body 4, thereby protecting the cable body 4 and improving the service life of the cable body 4.

[0027] As Figures 2 to 3 shown, a set of limiting grooves 113 are correspondingly provided inside the mounting plate 11. The limiting grooves 113 are located on both sides inside the connecting groove 111 and communicate with each other, and the cross-sections of the limiting grooves 113 and the connecting groove 111 are arranged in a convex shape. Buffer springs 112 extending downward are connected to the inner walls of the upper ends of the limiting grooves 113 and the connecting groove 111; the limiting grooves 113 and the connecting groove 111 are used to facilitate the clamping of the connecting components 2, and with the multiple buffer springs 112 provided, when the cable body 4 bounces, the protective device body 3 drives the connecting components 2 to contact the multiple buffer springs 112, realizing buffer force unloading.

[0028] As Figures 3 to 4As shown in the figure, the connecting component 2 includes a backing plate 21. On one side of the backing plate 21 close to the mounting plate 11, a pin plate 23 is connected. The pin plate 23 is inserted into the connecting groove 111 and contacts the buffer spring 112. The pin plate 23 is located at the lower end of the buffer spring 112. On the outer walls of both sides of the pin plate 23, there are recessed telescopic grooves 231. A telescopic spring 232 is installed in the telescopic groove 231. On the outer walls of the front and rear sides of the pin plate 23, there are positioning blocks 24. The positioning blocks 24 extend into the telescopic groove 231. At one end of the positioning block 24 located inside the telescopic groove 231, a limiting block 241 is connected. The limiting block 241 contacts the telescopic spring 232. And while the pin plate 23 is slidably connected to the mounting plate 11 through the positioning block 24 extending into the limiting groove 113, it can be limited. The connection between the pin plate 23 and the connecting groove 111 on the mounting plate 11 is an insertion type installation. During the insertion process, first, the positioning blocks 24 on both sides are moved towards the inside of the telescopic groove 231, so that the positioning blocks 24 drive the telescopic spring 232 to contract towards the inside of the telescopic groove 231, facilitating the insertion of the pin plate 23 into the connecting groove 111. And when the telescopic groove 231 is located inside the limiting groove 113, without the limiting effect on the positioning block 24, the telescopic spring 232 rebounds, driving the positioning block 24 to extend into the limiting groove 113 to limit the pin plate 23, facilitating the connection between the connecting component 2 and the mounting plate 11.

[0029] As Figure 1 and Figure 3 shown, on the outer wall of the other side of the backing plate 21, a connecting piece 22 is connected. The connecting component 2 is connected to the protection device body 3 through the connecting piece 22. As Figure 4 shown, the connecting piece 22 includes a threaded sleeve 221 fixedly connected to the outer wall of the backing plate 21, and a threaded shaft 222. As Figure 5 shown, a turning handle 2221 is formed in the middle of the threaded shaft 222. One side is a smooth shaft section, and the other side is a threaded shaft section. As Figure 5 and Figure 6 shown, the protection body includes a first steel pipe 31 and a second steel pipe 32 rotatably sleeved outside the first steel pipe 31. The threaded shaft 222 is inserted into the pipe orifice 311 of the first steel pipe 31 through the smooth shaft section, and it is threadedly connected to the threaded sleeve 221 through the threaded shaft section. The protection body adopts a double-layer pipe structure, which can effectively prevent its deformation. At the same time, it is convenient to adjust the position and disassemble through the threaded shaft 222.

[0030] The working principle of the improved signal cable protection device:

[0031] During use, when the cable machine signal cable reel is working, at the moment of startup, the torque transmitted by the cable body 4 is relatively large, causing the cable body 4 to bounce and collide with the second steel pipe 32. Under the action of the force generated by the collision between the second steel pipe 32 and the cable body 4, the cushion plates 21 at both ends are driven. The cushion plates 21 drive the pin plate 23, and the pin plate 23 moves upward inside the connection groove 111. The pin plate 23 and the positioning block 24 are cushioned by a plurality of buffer springs 112 to unload the cable body 4, thereby protecting the cable body 4.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved protective device for a signal cable, comprising a cable crane main beam steel plate, and a cable body located at the lower end of the cable crane main beam steel plate, characterized in that: A group of mounting plates are symmetrically connected to the lower end of the steel plate of the cable crane main beam, and an inwardly recessed connecting groove is provided on the outer wall corresponding to the side of the mounting plate, and a buffer spring is installed in the upper end of the connecting groove; a protective device body is provided between the mounting plates, and the protective device body is located at the upper end of the cable body. Removable connecting components are connected to both ends of the protective device body, and the protective device body extends into the connecting groove through the connecting component and is slidably connected to the mounting plate, and the connecting component is located at the lower end of the buffer spring and contacts with the buffer spring.

2. The improved signal cable protection device according to claim 1 is characterized in that: A group of limiting grooves are correspondingly arranged inside the mounting plate. The limiting grooves are located on both sides of the connecting groove and are interconnected. The cross-sections of the limiting grooves and the connecting grooves are arranged in a convex shape. The limiting grooves and the inner walls of the upper ends of the connecting grooves are both connected with buffer springs extending downward.

3. The improved signal cable protection device according to claim 2 is characterized in that: The connection assembly comprises a pad, a latch plate is connected to one side of the pad close to the mounting plate, the latch plate is inserted into the connection slot and contacts the buffer spring, and the latch plate is located at the lower end of the buffer spring.

4. The improved signal cable protection device according to claim 3 is characterized in that: The front and rear outer walls of the latch plate are provided with inwardly recessed telescopic grooves, the inner walls of the telescopic grooves are connected with telescopic springs, and the front and rear outer walls of the latch plate are provided with positioning blocks, which extend into the telescopic grooves; one end of the positioning block located inside the telescopic groove is connected to a limiting block, the limiting block contacts the telescopic spring, and the latch plate extends into the limiting groove through the positioning block.

5. The improved signal cable protection device according to claim 2, characterized in that: A connecting piece is connected to the outer wall on the other side of the pad, and the pad is connected to the protective device body through the connecting piece; the connecting piece includes a threaded sleeve fixedly connected to the outer wall of the pad, and a threaded shaft; a turning handle is formed in the middle of the threaded shaft, one side of which is an optical axis section connected to the protective body, and the other side is a threaded shaft section connected to the threaded sleeve.

6. The improved signal cable protection device according to claim 5, characterized in that: The protective body comprises a first steel pipe and a second steel pipe rotatably sleeved on the outside of the first steel pipe; the pipe openings on both sides of the first steel pipe are plugged into the smooth axis section of the threaded shaft.

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