A crane power cable fixing device

Abstract

The utility model discloses a kind of crane power cable fixing devices, it is related to cable fixing field, including connecting plate;Clamping assembly is set to the top of connecting plate, clamps and fixes on crane;Buffering assembly is set to the bottom of connecting plate, for buffering protection to power cable;Fixed component is set to the bottom of buffering assembly and is cooperated with buffering assembly, for protection fixed to power cable.Power cable is fixed in different positions on crane, provides optimal wiring path for power cable, simultaneously reduces the impact of crane operation and the vibration caused by external wind force on power cable, prolongs the service life of cable, helps cable to bend and stretch naturally with crane movement, reduces the damage caused to cable by rigid pulling and mechanical stress, also makes power cable freely rotate according to needs, facilitates starting power cable to rotate flexibly with crane jib or other moving parts.

Description

Technical Field

[0001] This utility model relates to the field of cable fixing, specifically to a crane power cable fixing device. Background Technology

[0002] A crane is a mechanical device used for vertically lifting and horizontally moving heavy objects. It is widely used in industries such as construction, transportation, metallurgy, and ports. Cranes typically include types such as gantry cranes and tower cranes. A crane usually consists of a frame, mechanisms (lifting mechanism, traveling mechanism, slewing mechanism, luffing mechanism), and a control system. Cranes typically use electricity to stably and continuously drive the various mechanisms. However, frequent movement and vibration during crane operation can cause mechanical damage to the power cables, hindering normal operation. Therefore, it is necessary to secure the power cables to ensure a stable power supply.

[0003] For example, patent application number 202122502147.9 discloses a main cable fixing device for a tower crane, which includes two baffles, four bolts, and fasteners. Four bolt holes I are symmetrically arranged at the four corners of the baffles. Each bolt consists of a bolt head and a threaded section at the tail end. A cable channel is vertically arranged in the middle of the fastener, and two bolt holes II are symmetrically arranged on both sides of the cable channel, corresponding to bolt holes I.

[0004] In existing cable fixing devices, although cables can be fixed on crossbeams, if the surface of the crossbeam is uneven or has an irregular structure, the contact area between the baffle and the crossbeam may be insufficient, resulting in reduced friction and affecting the fixing effect. At the same time, if the cable is directly fixed on the baffle, the cable insulation layer may be damaged under stress when the cable is pulled.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a crane power cable fixing device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows:

[0008] A crane power cable fixing device includes a connecting plate; a clamping assembly disposed at the top of the connecting plate and clamping and fixing it to the crane; a buffer assembly disposed at the bottom of the connecting plate for buffering and protecting the power cable; and a fixing assembly disposed at the bottom of the buffer assembly and cooperating with the buffer assembly for protecting and fixing the power cable.

[0009] Furthermore, to achieve flexible fixing of the cable to a designated position on the crane, the clamping assembly includes a clamping shell located at the top of the connecting plate. Inside the clamping shell, from bottom to top, are an adjusting roller and two sets of sliding rods. A worm gear is located on the outer side of the adjusting roller, and a worm cooperating with the clamping shell is located at the top of the worm gear. One end of the worm penetrates the clamping shell and is connected to an operating rod. Several helical grooves are symmetrically arranged at both ends of the outer side of the adjusting roller. Two sets of sliders cooperating with the helical grooves are located on the outer side of the adjusting roller, and a moving block connected to the slider is located on the outer side of the sliding rod. Two sets of clamping bars are located at the top of the moving block, and several friction strips are located on one side of each clamping bar. The clamping bars have an L-shaped structure and are symmetrically staggered at the top of the moving block.

[0010] Furthermore, to reduce the impact of vibration on the power cable, a buffer assembly is included, comprising several dampers disposed at the bottom of the connecting plate, springs that cooperate with the dampers at the bottom of the connecting plate, and a buffer plate at the bottom end of the dampers, with limit grooves formed inside the buffer plate. The dampers and springs are arranged in a circumferential pattern, and the buffer plate has a hollow structure and is circular in shape.

[0011] Furthermore, for securing the power cable, the fixing assembly includes a rotating shaft housed inside the buffer plate. A limiting strip, which mates with a limiting groove, is located on the outer side of the rotating shaft. A fixing plate is located at the bottom of the rotating shaft. A fixing strip is located at the bottom of the fixing plate, and two sets of fixing sleeves are located at the bottom of the fixing strip. A first fixing shell is located on the outer side of each fixing sleeve, and a rotating column is located inside each fixing sleeve. A second fixing shell, which mates with the first fixing shell, is located on the outer side of the rotating column. Connecting blocks are symmetrically arranged at the bottom ends of the first and second fixing shells, and a bolt passes through the connecting blocks. A nut, which mates with the bolt, is located on one side of the connecting block at the bottom end of the second fixing shell.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model can fix the crane power cable at different positions on the crane, and at the same time reduce the impact on the power cable when the crane is running and vibrates, extend the service life of the cable, help the cable to bend and stretch naturally with the movement of the crane, reduce the damage to the cable caused by hard pulling and mechanical stress, and also allow the power cable to rotate freely as needed, so that the power cable can rotate flexibly with the crane boom or other moving parts.

[0014] 2. The adjustable clamping bar, through the clamping assembly, can flexibly fix the cable at a designated position on the crane, providing the optimal wiring path for the power cable, reducing unnecessary bending or stretching, and allowing for easy adjustment and repositioning, thus facilitating subsequent inspection of the power cable.

[0015] 3. Through the synergistic effect of the buffer and fixing components, the springs and dampers absorb vibrations caused by crane operation and external wind forces, effectively reducing the impact of vibration on the power cable and preventing cable damage caused by stress concentration or rigid tension. Simultaneously, this structure allows the power cable to rotate freely according to actual operating conditions, significantly reducing cable damage caused by excessive torsion and further improving the system's reliability and safety. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of a crane power cable fixing device according to an embodiment of the present utility model;

[0018] Figure 2 This is one of the cross-sectional views of a crane power cable fixing device according to an embodiment of the present utility model;

[0019] Figure 3 This is a second sectional view of a crane power cable fixing device according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram illustrating the application of a crane power cable fixing device according to an embodiment of the present utility model.

[0021] In the picture:

[0022] 1. Connecting plate; 2. Clamping assembly; 201. Clamping shell; 202. Adjusting roller; 203. Slide rod; 204. Worm gear; 205. Worm; 206. Operating lever; 207. Spiral groove; 208. Slider; 209. Moving block; 210. Clamping bar; 211. Friction bar; 3. Buffer assembly; 301. Damper; 302. Spring; 303. Buffer plate; 304. Limiting groove; 4. Fixing assembly; 401. Rotating shaft; 402. Limiting bar; 403. Fixing plate; 404. Fixing bar; 405. Fixing sleeve; 406. Fixing shell one; 407. Rotating column; 408. Fixing shell two; 409. Connecting block; 410. Bolt; 411. Nut. Detailed Implementation

[0023] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] According to an embodiment of the present invention, a crane power cable fixing device is provided.

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-4 As shown, the crane power cable fixing device according to an embodiment of the present utility model includes a connecting plate 1; a clamping component 2, disposed at the top of the connecting plate 1, clamping and fixing it on the crane; a buffer component 3, disposed at the bottom of the connecting plate 1, for buffering and protecting the power cable; and a fixing component 4, disposed at the bottom of the buffer component 3 and cooperating with the buffer component 3, for protecting and fixing the power cable.

[0026] In one embodiment, the clamping assembly 2 includes a clamping shell 201 disposed at the top of the connecting plate 1. Inside the clamping shell 201, from bottom to top, are an adjusting roller 202 and two sets of sliding rods 203. A worm gear 204 is disposed on the outer side of the adjusting roller 202. A worm 205, which cooperates with the clamping shell 201, is disposed at the top of the worm gear 204. The worm gear 204 and the worm 205 cooperate with each other. One end of the worm 205 penetrates the clamping shell 201 and is provided with an operating rod 206. Several spirals are symmetrically arranged at both ends of the outer side of the adjusting roller 202. The groove 207; two sets of sliders 208 that cooperate with the spiral groove 207 are provided on the outer side of the adjusting roller 202, and a moving block 209 connected to the slider 208 is provided on the outer side of the slide rod 203. Two sets of clamping bars 210 are provided at the top of the moving block 209. Several friction bars 211 are provided on one side of the clamping bar 210. The clamping bar 210 has an L-shaped structure and is symmetrically staggered at the top of the moving block 209. This allows for flexible fixing of the cable to a designated position on the crane, reducing unnecessary bending or stretching.

[0027] The working principle of clamping assembly 2 is as follows: The operator rotates the operating lever 206, which, through the meshing transmission of the worm gear 205 and worm wheel 204, drives the adjusting roller 202 to rotate within the clamping housing 201. Due to the transmission characteristics of the worm wheel 204 and worm gear 205, this structure has a self-locking function. That is, when the operating lever 206 stops rotating, the adjusting roller 202 will automatically maintain a fixed position due to friction. When the adjusting roller 202 rotates, the spiral groove 207 on its outer side rotates accordingly. The slider 208, which cooperates with the spiral groove, moves axially under the guidance of the groove, driving the moving block 209 to slide stably along the direction of the slide bar 203. The moving block 209 drives the clamping bar 210 at the top to move synchronously.

[0028] When this fixing device needs to be installed, the operator first rotates the operating lever 206 to make the clamping bars 210 move away from each other to the maximum open position. Then, the operator rotates the operating lever 206 in the opposite direction, and the clamping bars 210 gradually move towards the center and, with the assistance of the friction strip 211, stick tightly to the surface of the crane to achieve a firm clamping.

[0029] In one embodiment, the buffer assembly 3 includes several dampers 301 disposed at the bottom of the connecting plate 1. A spring 302 cooperating with the damper 301 is disposed at the bottom of the connecting plate 1. A buffer plate 303 is disposed at the bottom end of the damper 301, and a limiting groove 304 is formed inside the buffer plate 303. The dampers 301 and springs 302 are arranged in a circular pattern. The buffer plate 303 has a hollow structure and a circular shape, which can absorb vibrations caused by crane operation and external wind forces, effectively reducing the impact of vibration on the power cable.

[0030] It should be noted that the damping of the power cable is achieved through the cooperation of the damper 301 and the spring 302. This is existing technology and will not be elaborated further.

[0031] In one embodiment, the fixing component 4 includes a rotating shaft 401 disposed inside the buffer plate 303. A limiting strip 402, which mates with a limiting groove 304, is disposed on the outer side of the rotating shaft 401. A fixing plate 403 is disposed at the bottom end of the rotating shaft 401. A fixing strip 404 is disposed at the bottom of the fixing plate 403. Two sets of fixing sleeves 405 are disposed at the bottom end of the fixing strip 404. A first fixing shell 406 is disposed on the outer side of the fixing sleeve 405. A rotating column 407 is disposed inside the fixing sleeve 405. A second fixing shell 408, which mates with the first fixing shell 406, is disposed on the outer side of the rotating column 407. Connecting blocks 409 are symmetrically disposed at the bottom ends of the first fixing shell 406 and the second fixing shell 408. A bolt 410 passes through the connecting blocks 409. A nut 411, which mates with the bolt 410, is disposed on one side of the connecting block 409 at the bottom end of the second fixing shell 408.

[0032] It should be noted that the inner walls of the first fixing shell 406 and the second fixing shell 408 are equipped with bushings to prevent the outer sheath of the power cable from being worn. The bushings can be made of materials such as polyurethane, silicone, and polyvinyl chloride.

[0033] The working principle of the fixing component 4 is as follows: Workers remove the bolts 410 and nuts 411 to release the limiting positions of fixing housing one 406 and fixing housing two 408. At this time, fixing housing two 408 is connected to fixing sleeve 405 via rotating column 407, allowing fixing housing two 408 to rotate relative to fixing housing one 406 around rotating column 407. Workers place the power cable to be fixed inside fixing housing one 406 and fixing housing two 408, and then fix fixing housing one 406 and fixing housing two 408 with bolts 410 and nuts 411. When rotation is required, under the action of rotating shaft 401 and limited by limiting strip 402 and limiting groove 304, the entire fixing component 4 rotates within buffer plate 303, allowing the power cable to rotate freely according to actual working conditions, significantly reducing cable damage caused by excessive torsion.

[0034] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0035] In practical applications, firstly, based on the specific structure of the crane and the power cable, the operator controls the distance between the clamping bars 210 using the operating lever 206 of the clamping assembly 2, flexibly fixing the entire device to the crane. Utilizing the L-shaped structure of the clamping bars 210 and the friction provided by the friction strips 211, the entire device is firmly and stably fixed to the crane (the working principle of the clamping assembly 2 is as described above). When the clamping bars 210 are stably fixed to the crane, the operator opens the second fixing shell 408 using bolts 410, releasing the limiting state between the two. Then, the power cable is placed between the first fixing shell 406 and the second fixing shell 408 (the working principle of the fixing assembly 4 is as described above), ensuring that the cable is in a naturally extended state, avoiding bending or excessive stretching. Then, the second fixing shell 408 is closed again and aligned with the first fixing shell 406. Bolts 410 are passed through the connecting blocks 409 in sequence and tightened with nuts 411, thereby firmly clamping the power cable inside the fixing assembly 4. The inner walls of the first fixed housing 406 and the second fixed housing 408 are provided with bushings to effectively prevent the cable sheath from being worn due to clamping, thereby further improving the protection effect of the cable. If the cable direction needs to be adjusted or rotated to follow the boom movement during crane operation, the fixed component 4 can also be freely rotated through the rotating shaft 401.

[0036] In summary, by utilizing the above-mentioned technical solutions of this utility model, the present utility model can fix power cables at different positions on the crane. Simultaneously, it reduces the impact on the power cable when the crane vibrates during operation, extends the cable's service life, facilitates the cable's natural bending and stretching with the crane's movement, reduces damage caused by rigid pulling and mechanical stress, and allows the power cable to rotate freely as needed, facilitating flexible rotation with the crane boom or other moving parts. Through the clamping assembly, the adjustable clamping bar can flexibly fix the cable at a designated position on the crane, providing an optimal wiring path for the power cable, reducing unnecessary bending or stretching, and allowing for easy adjustment and repositioning, facilitating subsequent inspection of the power cable. Through the synergistic effect of the buffer assembly and the fixing assembly, the spring and damper absorb vibrations caused by crane operation and external wind forces, effectively reducing the impact of vibration on the power cable and preventing cable damage caused by stress concentration or rigid pulling. Meanwhile, this structure allows the power cable to rotate freely according to actual operating conditions, significantly reducing cable damage caused by excessive twisting and further improving the system's reliability and safety.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A crane power cable fixing device, characterized in that, include: Connecting plate (1); The clamping assembly (2) is disposed at the top of the connecting plate (1) and clamped and fixed on the crane; A buffer assembly (3) is disposed at the bottom end of the connecting plate (1) for buffering and protecting the power cable; The fixing component (4) is located at the bottom of the buffer component (3) and cooperates with the buffer component (3) to protect and fix the power cable.

2. The crane power cable fixing device according to claim 1, characterized in that, The clamping assembly (2) includes a clamping shell (201) disposed at the top of the connecting plate (1). Inside the clamping shell (201), an adjusting roller (202) and two sets of sliding rods (203) are respectively disposed from bottom to top. A worm wheel (204) is disposed on the outer side of the adjusting roller (202). A worm (205) that cooperates with the clamping shell (201) is disposed at the top of the worm wheel (204). The worm wheel (204) and the worm (205) cooperate with each other. One end of the worm (205) passes through the clamping shell (201) and is provided with an operating rod (206). Several spiral grooves (207) are symmetrically disposed at both ends of the outer side of the adjusting roller (202). The outer side of the adjusting roller (202) is provided with two sets of sliders (208) that cooperate with the spiral groove (207), and the outer side of the slide bar (203) is provided with a moving block (209) connected to the slider (208). The top of the moving block (209) is provided with two sets of clamping bars (210), and one side of the clamping bar (210) is provided with several friction bars (211).

3. A crane power cable fixing device according to claim 2, characterized in that, The clamping bar (210) has an L-shaped structure, and the clamping bars (210) are arranged symmetrically and alternately at the top of the moving block (209).

4. A crane power cable fixing device according to claim 1, characterized in that, The buffer assembly (3) includes several dampers (301) disposed at the bottom of the connecting plate (1). A spring (302) cooperating with the damper (301) is disposed at the bottom of the connecting plate (1). A buffer plate (303) is disposed at the bottom end of the damper (301). A limit groove (304) is opened inside the buffer plate (303).

5. A crane power cable fixing device according to claim 4, characterized in that, The damper (301) and the spring (302) are arranged in a circular pattern, the buffer plate (303) has a hollow structure, and the shape of the buffer plate (303) is circular.

6. A crane power cable fixing device according to claim 4, characterized in that, The fixing component (4) includes a rotating shaft (401) disposed inside the buffer plate (303), a limiting strip (402) that cooperates with the limiting groove (304) is provided on the outside of the rotating shaft (401), and a fixing plate (403) is provided at the bottom end of the rotating shaft (401). The bottom of the fixing plate (403) is provided with a fixing strip (404), and the bottom end of the fixing strip (404) is provided with two sets of fixing sleeves (405). The outer side of the fixing sleeve (405) is provided with a fixing shell one (406), the inside of the fixing sleeve (405) is provided with a rotating column (407), and the outer side of the rotating column (407) is provided with a fixing shell two (408) that cooperates with the fixing shell one (406).

7. A crane power cable fixing device according to claim 6, characterized in that, The bottom ends of the first fixed shell (406) and the second fixed shell (408) are symmetrically provided with connecting blocks (409), and a bolt (410) is provided through the connecting blocks (409). A nut (411) that cooperates with the bolt (410) is provided on one side of the connecting block (409) at the bottom end of the second fixed shell (408).

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