CN219217319U

CN219217319U - Cable protection device for revolving part of tower crane

Info

Publication number: CN219217319U
Application number: CN202320264767.XU
Authority: CN
Inventors: 邓大石; 王军利; 刘西莹; 杜紫阳; 高森彪
Original assignee: CCCC Construction Group Co Ltd
Current assignee: CCCC Construction Group Co Ltd
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-06-20
Anticipated expiration: 2033-02-16

Abstract

The utility model relates to the technical field of cable protection, in particular to a cable protection device for a revolving part of a tower crane, which comprises a tower crane revolving frame and a second supporting rod, wherein the second supporting rod is fixedly connected to the inner wall of the tower crane revolving frame, a winding mechanism is arranged in the tower crane revolving frame, the second supporting rod is fixedly connected to the outer wall of an outer ring, and an inner ring is fixedly connected to the inner part of the outer ring through a mounting piece. Through the cooperation between motor, the bull stick, the wind-up roll, first belt pulley, the belt, the second belt pulley, the lead screw, screw thread piece and the guide ring, the motor drives the bull stick and rotates, the bull stick drives the wind-up roll and rotates, the wind-up roll rolls the cable, the bull stick drives first belt pulley rotation when rotating, first belt pulley passes through belt drive second belt pulley rotation, the second belt pulley drives the lead screw rotation, screw drive screw thread piece slides, screw thread piece drives guide ring up-and-down reciprocating motion, the guide ring drives cable motion, the even winding of cable is at the outer wall of wind-up roll.

Description

Cable protection device for revolving part of tower crane

Technical Field

The utility model relates to the technical field of cable protection, in particular to a cable protection device for a rotation part of a tower crane.

Background

Because the tower crane is high in height and high in gravity center, the vibration frequency of the tower body is high in shaking during operation, so that the relative motion of a power transmission cable and a rotation part is frequent during operation, the friction frequency of a cable passing through a central hole-shaped position and a circular steel structure hole at the edge of a grid is extremely high during upper rotation, the power transmission cable sheath is frequently worn, and a special electric box used by the tower crane is generally 380V.

For example, according to the cable protection device at the rotating part of the tower crane, the patent number CN217984470U is referred to the bearing principle, the outer ring of the bearing is fixed with the rotating part, the inner ring of the bearing is fixed with the cable through spring compression and cable extrusion by static friction force, the torque applied to the cable is transferred to the bearing during rotation, so as to achieve the effect of reducing the abrasion of the cable sheath.

Disclosure of Invention

The utility model aims to solve the problem that the cable is inconvenient to wind in the prior art, and provides a cable protection device for a rotation part of a tower crane.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a tower crane gyration position cable protection device, includes tower crane revolving frame and second branch, second branch rigid coupling is at the inner wall of tower crane revolving frame, the inside of tower crane revolving frame is provided with winding mechanism, second branch rigid coupling is at the outer wall of outer loop, the inside of outer loop has the inner ring through the installed part rigid coupling, be provided with first ball between outer loop and the inner ring, the inner wall rigid coupling of inner ring has the sleeve.

Preferably, the winding mechanism comprises a motor, the motor rigid coupling is at the upper surface of tower crane revolving frame, the output shaft rigid coupling of motor has the bull stick, the outer wall at bull stick both ends all rotates with the tower crane revolving frame through the bearing and links to each other, the outer wall rigid coupling of bull stick has the wind-up roll, the lower extreme rigid coupling of bull stick has first belt pulley, first belt pulley rotates with the second belt pulley through the belt and links to each other, the second belt pulley rigid coupling is at the lower extreme of lead screw, the outer wall at lead screw both ends all rotates with the tower crane revolving frame through the bearing and links to each other, the outer wall threaded connection of lead screw has the screw thread piece, the outer wall and the tower crane revolving frame slip of screw thread piece link to each other, the surface rigid coupling of screw thread piece has the guide ring.

Preferably, the outer wall of the wind-up roll is provided with a cable.

Preferably, the sleeve is connected with the outer wall of the sliding rod in a sliding way, a bent rod is fixedly connected to the end part of the sliding rod, and a second ball is arranged in the bent rod.

Preferably, a spring is arranged in the sleeve, and two ends of the spring are fixedly connected with the sleeve and the sliding rod respectively.

The cable protection device for the revolving part of the tower crane has the beneficial effects that: through motor, the bull stick, the wind-up roll, first belt pulley, the belt, the second belt pulley, the lead screw, cooperation between screw thread piece and the guide ring, the motor drives the bull stick and rotates, the bull stick drives the wind-up roll and rotates, the bull stick drives first belt pulley rotation when rotating, first belt pulley passes through belt drive second belt pulley rotation, the second belt pulley drives the lead screw rotation, screw drive screw thread piece slides, screw thread piece drives guide ring up-and-down reciprocating motion, the guide ring moves the cable motion, even winding of cable is at the outer wall of wind-up roll, winding mechanism can wind the cable, when the tower crane shrink, the cable can not be more messy, when stretching out the cable again, can not cause the cable internal circuit to take place to break, be convenient for protect the cable.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the structure of the present utility model;

FIG. 3 is a schematic view of the connection between the outer ring, the inner ring and the first ball in the present utility model;

FIG. 4 is a schematic view of the structure of the connection between the cleaning ring and the brush according to the present utility model.

In the figure: 1. tower crane revolving frame, 2, cable, 3, winding mechanism, 301, motor, 302, bull stick, 303, wind-up roll, 304, first belt pulley, 305, belt, 306, second belt pulley, 307, lead screw, 308, screw thread piece, 309, guide ring, 3a1, first branch, 3a2, cleaning ring, 3a3, brush, 4, second branch, 5, outer loop, 6, inner loop, 7, first ball, 8, sleeve, 9, slide bar, 10, spring, 11, bent rod, 12, second ball.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

example 1:

referring to fig. 1-4: in the embodiment, the cable protection device at the rotating part of the tower crane comprises a tower crane rotating frame 1 and second supporting rods 4, wherein the second supporting rods 4 are fixedly connected to the inner wall of the tower crane rotating frame 1, a winding mechanism 3 is arranged in the tower crane rotating frame 1, the winding mechanism 3 is convenient for winding cables, the second supporting rods 4 are fixedly connected to the outer wall of an outer ring 5, the outer ring 5 is fixedly connected to the inner part of the tower crane rotating frame 1 by two second supporting rods 4, an inner ring 6 is fixedly connected to the inner part of the outer ring 5 through a mounting piece, the connection mode of the outer ring 5 and the inner ring 6 is the same as that of the cable protection device at the rotating part of the tower crane with the patent number of CN217984470U, a first ball 7 is arranged between the outer ring 5 and the inner ring 6, the first ball 7 makes the inner ring 6 can rotate in outer loop 5, the inner wall rigid coupling of inner ring 6 has sleeve 8, sleeve 8 and slide bar 9's outer wall slip links to each other, slide bar 9 slides in sleeve 8's inside, slide bar 9's tip rigid coupling has curved bar 11, curved bar 11 moves with slide bar 9, curved bar 11's inside is provided with second ball 12, second ball 12 is convenient for cable 2 through, sleeve 8's inside is provided with spring 10, spring 10's model is selected according to the actual use demand, satisfy the work needs can, spring 10's both ends respectively with sleeve 8 and slide bar 9 fixed link to each other, spring 10 drives slide bar 9 and slides under the elasticity effect, carry out the centre gripping to cable 2, spring 10 is provided with elastic damping with the junction of sleeve 8 and slide bar 9.

The winding mechanism 3 comprises a motor 301, a rotating rod 302, a winding roller 303, a first belt pulley 304, a belt 305, a second belt pulley 306, a lead screw 307, a threaded block 308 and a guide ring 309, wherein the motor 301 is fixedly connected to the upper surface of the tower crane revolving frame 1, the model of the motor 301 is selected according to actual use requirements, the motor 301 is fixedly connected with the rotating rod 302, the motor 301 drives the rotating rod 302 to rotate, the outer walls of the two ends of the rotating rod 302 are all in rotary connection with the tower crane revolving frame 1 through bearings, the winding roller 303 is fixedly connected with the outer wall of the rotating rod 302, the rotating rod 302 drives the winding roller 303 to rotate, the first belt pulley 304 is fixedly connected with the lower end of the rotating rod 302, the rotating rod 302 drives the first belt pulley 304 to rotate, the first belt pulley 304 is in rotary connection with the second belt pulley 306 through the belt 305, the second belt pulley 306 is fixedly connected to the lower end of the lead screw 307, the outer walls of the two ends of the lead screw 307 are all in rotary connection with the tower crane revolving frame 1 through bearings, the threaded block 308 is in threaded connection with the outer wall of the threaded block 308, the threaded block 307 is in sliding connection with the outer wall of the threaded block 308 through the bearing, the outer wall of the threaded block 308 is in sliding connection with the cable 309 in the cable 2, and the guide ring 309 is in the cable 2 is in the roller 2-winding process of the roller 309 is in the cable 2;

the motor 301 drives the bull stick 302 to rotate, the bull stick 302 drives the wind-up roll 303 and rotates, the wind-up roll 303 carries out the rolling to cable 2, the bull stick 302 drives first belt pulley 304 and rotates when rotating, first belt pulley 304 passes through belt 305 drive second belt pulley 306 and rotates, second belt pulley 306 drives lead screw 307 and rotates, lead screw 307 drives screw thread piece 308 and slides, screw thread piece 308 drives guide ring 309 up-and-down reciprocating motion, guide ring 309 drives cable 2 motion, cable 2 even winding is at the outer wall of wind-up roll 303, winding mechanism 3 can wind-up cable 2, when the tower crane shrink, cable 2 can not be more messy, when stretching out cable 2 again, can not cause the cable internal circuit to break, be convenient for protect cable 2.

Working principle:

when the cable protection device at the rotation part of the tower crane is used, when the tower crane revolving frame 1 rotates, the cable 2 can shake, the cable 2 extrudes the bent rod 11, the bent rod 11 drives the sliding rod 9 to slide, the sliding rod 9 extrudes the spring 10, the spring 10 buffers the received force, and further the cable 2 is guaranteed, when the cable 2 rotates, the inner ring 6 can rotate under the action of the first ball 7, the cable 2 needs to be wound when the tower crane contracts, the motor 301 is started, the motor 301 drives the rotating rod 302 to rotate, the rotating rod 302 drives the winding roller 303 to rotate, the winding roller 303 winds the cable 2, the rotating rod 302 drives the first belt pulley 304 to rotate when rotating, the first belt pulley 304 drives the second belt pulley 306 to rotate through the belt 305, the second belt pulley 306 drives the lead screw 307 to rotate, the lead screw 307 drives the screw block 308 to slide, the lead ring 309 to reciprocate up and down, the lead ring 309 drives the cable 2 to move, the cable 2 is uniformly wound on the outer wall of the winding roller 303, the cable 2 can pass through the winding rod 11 under the action of the second ball 12, the winding mechanism 3 can wind the cable 2 when the cable 2 contracts, and the cable 2 does not stretch out of the cable 2 again, and the cable 2 cannot be broken when the cable 2 is wound, and the cable is convenient to be broken, and the cable 2 does not more broken when the cable 2 is wound.

Example 2:

referring to fig. 1-4: in the embodiment, the winding mechanism 3 further comprises first supporting rods 3a1, a cleaning ring 3a2 and a hairbrush 3a3, wherein the first supporting rods 3a1 are fixedly connected to the inner wall of the tower crane revolving frame 1, the two first supporting rods 3a1 are fixedly connected to the outer wall of the cleaning ring 3a2, the cleaning ring 3a2 is fixedly connected to the inner part of the tower crane revolving frame 1 by the two first supporting rods 3a1, the hairbrush 3a3 is fixedly connected to the inner wall of the cleaning ring 3a2, and when the cable 2 is wound, the hairbrush 3a3 is attached to the outer wall of the cable 2, and the outer wall of the cable 2 is cleaned;

through the cooperation between first branch 3a1, clearance ring 3a2 and brush 3a3, wind-up roll 303 is when rolling up cable 2, and cable 2 passes from the inside of clearance ring 3a2, and the inside brush 3a3 of clearance ring 3a2 contacts with cable 2's outer wall, and brush 3a3 contacts cable 2's outer wall, clears up cable 2's outer wall.

Working principle:

when the winding roller 303 winds the cable 2, the cable 2 passes through the cleaning ring 3a2, the brush 3a3 inside the cleaning ring 3a2 contacts with the outer wall of the cable 2, and the brush 3a3 contacts with the outer wall of the cable 2 to clean the outer wall of the cable 2.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims

1. The utility model provides a tower crane gyration position cable protection device, includes tower crane revolving frame (1) and second branch (4), second branch (4) rigid coupling is at the inner wall of tower crane revolving frame (1), its characterized in that: the inside of tower crane revolving frame (1) is provided with winding mechanism (3), second branch (4) rigid coupling is at the outer wall of outer loop (5), the inside of outer loop (5) has inner ring (6) through the installed part rigid coupling, be provided with first ball (7) between outer loop (5) and inner ring (6), the inner wall rigid coupling of inner ring (6) has sleeve (8).

2. The tower crane turning part cable protection device according to claim 1, wherein: winding mechanism (3) are including motor (301), motor (301) rigid coupling is at the upper surface of tower crane revolving frame (1), the output shaft rigid coupling of motor (301) has bull stick (302), the outer wall at bull stick (302) both ends all rotates with tower crane revolving frame (1) through the bearing and links to each other, the outer wall rigid coupling of bull stick (302) has wind-up roll (303), the lower extreme rigid coupling of bull stick (302) has first belt pulley (304), first belt pulley (304) rotate with second belt pulley (306) through belt (305) and link to each other, second belt pulley (306) rigid coupling is at the lower extreme of lead screw (307), the outer wall at lead screw (307) both ends all rotates through bearing and tower crane revolving frame (1) and link to each other, the outer wall threaded connection of lead screw (307) has screw block (308), the outer wall of screw block (308) slides with tower crane revolving frame (1) and links to each other, the surface rigid coupling of screw block (308) has guide ring (309).

3. The tower crane turning part cable protection device according to claim 2, wherein: the outer wall of wind-up roll (303) is provided with cable (2).

4. The tower crane turning part cable protection device according to claim 1, wherein: the sleeve (8) is connected with the outer wall of the sliding rod (9) in a sliding mode, a bent rod (11) is fixedly connected to the end portion of the sliding rod (9), and a second ball (12) is arranged in the bent rod (11).

5. The tower crane turning part cable protection device according to claim 1, wherein: the inside of sleeve (8) is provided with spring (10), the both ends of spring (10) are fixed with sleeve (8) and slide bar (9) respectively.