CN211871024U

CN211871024U - Cable abrasion-proof rotary joint

Info

Publication number: CN211871024U
Application number: CN202020186309.5U
Authority: CN
Inventors: 余光明; 荆小杰; 杨家春
Original assignee: Ma'anshan Yiwen Metallurgical Machinery Repair Co ltd
Current assignee: Ma'anshan Yiwen Metallurgical Machinery Repair Co ltd
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2020-11-06
Anticipated expiration: 2030-02-19

Abstract

The utility model discloses a prevent cable wearing and tearing rotary joint belongs to mechanical engineering equipment technical field. This joint includes: the mounting seat is in a hollow cylindrical shape, the lower end of the mounting seat is provided with a connecting flange, and two rotating bearings are arranged inside the mounting seat in the longitudinal direction; the accommodating mechanism is provided with a rotating seat and a rotating cylinder arranged on the rotating seat, the rotating seat is sleeved on the two rotating bearings, and an insulating plate is arranged on the upper surface of the rotating seat; the inner wall of the rotary cylinder is provided with a through hole for the cable to extend out; and the paying-off mechanism is provided with a pulley block, the cable is arranged on the insulating plate and penetrates out of the through hole through the pulley block. The cable of arranging on the insulation board passes through the sliding action of assembly pulley, has avoided the closed angle department of through-hole on the rotatory section of thick bamboo for the cable does not have frictional wear and tear by the through-hole, effectively avoids the insulating layer of cable wearing and tearing to appear in closed angle department, extension cable life, and the difficult damage of cable can improve the safety in utilization simultaneously.

Description

Cable abrasion-proof rotary joint

Technical Field

The utility model belongs to the technical field of mechanical engineering equipment, more specifically say, relate to a prevent cable wearing and tearing rotary joint.

Background

The current collectors, also known as trolley line current collectors, on which the current is conducted to the individual electrical components via the current collectors, are mounted on a support which is in turn mounted on the moving device. The carbon brush on the current collector moves in the sliding contact line along with the movement of the equipment, so that uninterrupted power supply is realized. The current collector passes through the cable and is connected the intercommunication with the power, the current collector removes along with the removal of equipment, in the in-service use process, because the reciprocating motion of equipment, the power supply cable also can remove thereupon, vibration can appear in order to prevent equipment, lead to the power supply cable can be because the atress is disjointed, cause the not smooth problem of power supply, the allowance can generally all be put to the power supply cable, but can cause the power supply cable to be in lax state like this, the power supply cable can constantly with the rotary joint the closed angle between appear rubbing, thereby cause the wearing and tearing of power supply cable.

In order to solve the above problems, through retrieval, chinese patent application No. 201120062756.0 discloses a cable rotation anti-abrasion device, which comprises a cylindrical cable support and a support sliding ring, wherein the upper opening of the cylindrical cable support is provided with a flange, the cylindrical cable support is inserted in the support sliding ring, the wall surface of the cable support is provided with a wire passing hole for inserting a binding belt to bind the cable to the cable support, the cable rotation anti-abrasion device fundamentally stops the friction between a cable bundle and the center hole edge of the tower platform, effectively protects the cable bundle from abrasion, and eliminates the potential safety hazard caused by the abrasion of the cable.

Chinese patent application No. 201721334795.5 discloses a power cable line abrasionproof decreases device, it includes preceding support body, back support body, a position section of thick bamboo and power cable rubber position sleeve, the gyro wheel is installed respectively to the bottom of support body and back support body in the front, preceding support body links together through the connecting piece with the back support body, the top of support body is provided with two at least preceding mounting grooves from left to right interval in the front, equal fixed mounting has a position section of thick bamboo in the mounting groove before every, the upper end outside at a position section of thick bamboo is fixed to the lower extreme of power cable rubber position sleeve, the power cable clearing hole that is equipped with the fore-and-aft direction on the upper portion of power cable rubber.

The above-mentioned patent structures all play a role in preventing the abrasion of the cable, but the volume of the rotary joint is small, and the structures cannot be applied to the rotary joint.

Disclosure of Invention

1. Problems to be solved

To the friction appearing between current power supply cable and the rotary joint to cause the problem of the wearing and tearing of power supply cable, the utility model provides a cable wearing and tearing rotary joint prevents effectively to avoid the cable to appear wearing and tearing in closed angle department, extension cable life improves the safety in utilization performance.

2. Technical scheme

In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:

the utility model discloses a prevent cable wearing and tearing rotary joint, include:

the mounting seat is in a hollow cylindrical shape, the lower end of the mounting seat is provided with a connecting flange, and two rotating bearings are arranged inside the mounting seat in the longitudinal direction;

the accommodating mechanism is provided with a rotating seat and a rotating cylinder arranged on the rotating seat, the rotating seat is sleeved on the two rotating bearings, and an insulating plate is arranged on the upper surface of the rotating seat; the inner wall of the rotary cylinder is provided with a through hole for the cable to extend out;

and the paying-off mechanism is provided with a pulley block, the cable is arranged on the insulating plate and penetrates out of the through hole through the pulley block.

In a possible embodiment of the present invention, the paying-off mechanism further includes a fixing base and a suspension, the suspension passes through the fixing base, and the inner walls of the two end rotating cylinders are fixed, the pulley block includes a first fixed pulley, a second fixed pulley and a third fixed pulley, the first fixed pulley is disposed corresponding to the through hole, the upper end of the second fixed pulley is hinged to the first fixed pulley, the lower end of the second fixed pulley is fixedly connected to the fixing base, and the direction of the pulley groove in the second fixed pulley is consistent with the axis direction of the fixing base; the third fixed pulley is positioned at one end of the suspension, and the direction of the pulley groove in the third fixed pulley is consistent with the direction of the pulley groove in the second fixed pulley.

In a possible embodiment of the present invention, the paying-off mechanism further comprises a fixing rod and a fourth fixed pulley, wherein one end of the fixing rod is fixedly connected to the suspension, and the other end of the fixing rod is fixedly connected to the fourth fixed pulley.

In a possible embodiment of the present invention, the fixing rod is a hollow tube, the upper end of the fixing rod is open to the pulley groove of the third fixed pulley, and the lower end of the fixing rod is open to the pulley groove of the fourth fixed pulley.

In a possible embodiment of the present invention, two mounting grooves are provided along the central axis inside the mounting seat, one of the two mounting grooves is disposed in the mounting groove on the upper portion of the mounting seat, and the other one of the two mounting grooves is disposed in the mounting groove on the lower portion of the mounting seat, and the other one of the two mounting grooves is fixed to the one of the two mounting grooves by the cap and the screw.

In a possible embodiment of the present invention, the third fixed pulley has a pulley groove oriented therein, the fixed rod has a central axis oriented therein, and the fourth fixed pulley has a pulley groove oriented therein in a vertical direction.

In a possible embodiment of the present invention, the fourth fixed pulley is further provided with a threading hole member, and the threading hole member is fixedly connected to the fourth fixed pulley.

In a possible embodiment of the present invention, the rotary cylinder has a circular cylindrical opening structure, and is provided with a cylinder cover, which is hinged to the rotary cylinder and fixed by a pin.

In a possible embodiment of the present invention, the insulating plate is a disk shape, the diameter of the insulating plate is smaller than the inner diameter of the rotary cylinder, at least three equal-height pads are disposed on the rotary seat, and the insulating plate is disposed on the pads and isolated from the rotary seat; the cushion block is made of plastic, rubber or wood.

In a possible embodiment of the present invention, a handle is disposed at the center of the upper surface of the cover, and a sleeve is connected to the outside of the through hole of the rotary cylinder.

3. Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the cable abrasion-proof rotary joint of the utility model avoids the sharp corner of the through hole on the rotary cylinder under the sliding action of the pulley block, so that the cable can be worn out without friction through the through hole, the abrasion of the insulating layer of the cable at the sharp corner is effectively avoided, the service life of the cable is prolonged, meanwhile, the cable is not easy to damage, and the use safety performance can be improved;

(2) the cable abrasion-proof rotary joint of the utility model has the advantages that the cable can be pulled up in the vertical direction by arranging the first fixed pulley, the second fixed pulley and the third fixed pulley, and then the cable is smoothly output in the horizontal direction, so that the conversion from the longitudinal direction to the transverse direction is realized, and the friction force is effectively reduced;

(3) the cable abrasion-proof rotary joint of the utility model has the advantages that the fourth fixed pulley is matched with the fixed rod, so that the cable is prevented from being directly butted with the pulley groove in the third fixed pulley, and the possibility of friction between the cable and the suspension is reduced;

(4) the cable abrasion-proof rotary joint of the utility model adopts the hollow pipe as the fixed rod, which is beneficial to the seamless butt joint of the cable with the pulley groove in the third fixed pulley and the pulley groove in the fourth fixed pulley respectively, thereby reducing the abrasion of the cable to a greater extent;

(5) the cable abrasion-proof rotary joint of the utility model avoids the cable from falling off from the pulley groove in the fourth fixed pulley when the wire laying speed is greatly changed due to the existence of the wire passing hole piece;

(6) the utility model discloses a prevent cable wearing and tearing rotary joint, simple structure easily makes.

Drawings

The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus are not intended to limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.

Fig. 1 is a schematic perspective view of the cable abrasion prevention rotary joint of the present invention;

FIG. 2 is a cross-sectional view of the cable abrasion prevention rotary joint of the present invention;

fig. 3 is the utility model discloses prevent cable wearing and tearing rotary joint's paying out machine structure schematic diagram.

The notation in the figure is:

100. a mounting seat; 110. a connecting flange; 120. a rotating bearing; 130. mounting grooves; 140. covering the blank with a cover;

200. an accommodating mechanism; 210. a rotating seat; 211. an insulating plate; 212. cushion blocks; 220. a rotary drum; 221. a through hole; 222. a cylinder cover; 223. a handle; 224. a sleeve;

300. a pay-off mechanism; 310. a fixed seat; 320. a suspension; 330. a first fixed pulley; 340. a second fixed pulley; 350. a third fixed pulley; 360. fixing the rod; 370. a fourth fixed pulley; 371. a threading hole piece.

Detailed Description

The following detailed description of exemplary embodiments of the invention refers to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration exemplary embodiments in which the invention may be practiced. Although these exemplary embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, it should be understood that other embodiments may be realized and that various changes to the invention may be made without departing from the spirit and scope of the present invention. The following more detailed description of the embodiments of the present invention is not intended to limit the scope of the invention, as claimed, but is presented for purposes of illustration only and not limitation to provide the best mode contemplated for carrying out the invention and to enable any person skilled in the art to practice the invention. Accordingly, the scope of the invention is to be limited only by the following claims.

The detailed description and exemplary embodiments of the invention may be better understood when read in conjunction with the following drawings, where the elements and features of the invention are identified by reference numerals.

Example 1

As shown in fig. 1 to 3, the cable abrasion prevention rotary joint of the present embodiment includes a mounting seat 100, an accommodating mechanism 200, and a paying-off mechanism 300.

Wherein: the mounting seat 100 is a hollow cylinder, the lower end of which is provided with a connecting flange 110, and two rotary bearings 120 are arranged in the longitudinal direction of the mounting seat, specifically, in fig. 2, it can be seen that two mounting grooves 130 are arranged along the central axis in the mounting seat 100, one of the rotary bearings 120 is arranged in the mounting groove 130 on the upper part and is positioned by self gravity, and the other rotary bearing 120 is arranged in the mounting groove 130 on the lower part and is fixed with the rotary bearing 120 through a blank cap 140 and screws.

Further, the accommodating mechanism 200 has a rotating base 210 and a rotating cylinder 220 disposed on the rotating base 210, the rotating base 210 is sleeved on the two rotating bearings 120, and an insulating plate 211 is disposed on the upper surface of the rotating base 210; a through hole 221 for the cable to extend out is formed in the inner wall of the rotating cylinder 220, the edge of the through hole 221 is in a sharp-angle shape, and an insulating layer of the cable is made of rubber, so that the cable is easily abraded in the movement process; a sleeve 224 is connected to the outside of the through hole 221 of the rotary cylinder 220, and a cable extends from the sleeve 224.

It should be noted that the sharp edge angle is liable to wear the insulation layer of the cable, however, the cable is horizontally placed on the insulation board 211, the through hole 221 is in the vertical direction and oriented horizontally, the cable needs to be pulled up from the vertical direction first and turned to the horizontal direction, and therefore, a paying-off mechanism 300 is required for handling.

As shown in fig. 3, the paying-off mechanism 300 has a pulley block, a fixed seat 310 and a suspension 320, the suspension 320 passes through the fixed seat 310, and the inner walls of the two end rotating cylinders 220 are welded, lapped or fixed in other manners, the pulley block includes a first fixed pulley 330, a second fixed pulley 340, a third fixed pulley 350, a fixed rod 360 and a fourth fixed pulley 370, the first fixed pulley 330 is disposed corresponding to the through hole 221, the upper end of the second fixed pulley 340 is hinged to the first fixed pulley 330, the lower end of the second fixed pulley 340 is fixedly connected to the fixed seat 310, and the direction of a pulley groove in the second fixed pulley 340 is consistent with the axial direction of the fixed seat 310; the third fixed pulley 350 is located at one end of the suspension 320, and the direction of the pulley groove in the third fixed pulley 350 is consistent with the direction of the pulley groove in the second fixed pulley 340; one end of the fixing rod 360 is fixedly connected to the suspension 320, and the other end is fixedly connected to the fourth fixed pulley 370.

In addition, the fixing rod 360 is a hollow tube through which a cable can pass, an opening at an upper end of the fixing rod 360 corresponds to a pulley groove direction of the third fixed pulley 350, and an opening at a lower end of the fixing rod 360 corresponds to a pulley groove direction of the fourth fixed pulley 370.

Further, the pulley groove direction of the third fixed pulley 350, the central axis direction of the fixed rod 360 and the pulley groove direction of the fourth fixed pulley 370 are in the same vertical direction.

When the wire releasing speed is greatly changed, the cable is easy to fall off from the pulley groove of the fourth fixed pulley 370, and therefore, the fourth fixed pulley 370 is provided with the threading hole piece 371, and the threading hole piece 371 is fixedly connected with the fourth fixed pulley 370.

In this embodiment, the rotary cylinder 220 has a circular cylindrical opening structure, and is configured with a cylinder cover 222, and the cylinder cover 222 is hinged to the rotary cylinder 220 and fixed by a pin.

In addition, the insulating plate 211 is discoid, and specific material is bakelite, and thickness is 5mm, and its diameter is less than the internal diameter of rotatory section of thick bamboo 220, forms the gap between insulating plate 211 and the rotatory section of thick bamboo 220, and the size of gap is 3mm, is provided with six equal high cushion 212 on rotating seat 210, and the height of cushion 212 is 8mm, cushion 212 is formed by plastics, rubber or timber preparation, and insulating plate 211 is placed on cushion 212, forms the isolation with rotating seat 210.

In order to facilitate the opening of the cartridge cover 222, a handle 223 is provided at the center of the upper surface of the cartridge cover 222.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. A cable abrasion resistant swivel joint, comprising:

a mounting base (100) having a hollow cylindrical shape, a connecting flange (110) provided at a lower end thereof, and two rotary bearings (120) provided inside in a longitudinal direction thereof;

the accommodating mechanism (200) is provided with a rotating seat (210) and a rotating cylinder (220) arranged on the rotating seat (210), the rotating seat (210) is sleeved on the two rotating bearings (120), and an insulating plate (211) is arranged on the upper surface of the rotating seat (210); a through hole (221) for the cable to extend out is formed in the inner wall of the rotary cylinder (220);

and the paying-off mechanism (300) is fixed on the inner wall of the rotating cylinder (220) and is provided with a plurality of pulley blocks, and the cable is arranged on the insulating plate (211) and penetrates out of the through hole (221) through the pulley blocks.

2. The cable abrasion-proof rotary joint according to claim 1, wherein the paying out mechanism (300) further comprises a fixed seat (310) and a suspension (320), the suspension (320) penetrates through the fixed seat (310), the inner walls of the two end rotary cylinders (220) are fixed, the pulley block comprises a first fixed pulley (330), a second fixed pulley (340) and a third fixed pulley (350), the first fixed pulley (330) is arranged corresponding to the through hole (221), the upper end of the second fixed pulley (340) is hinged to the first fixed pulley (330), the lower end of the second fixed pulley (340) is fixedly connected to the fixed seat (310), and the direction of a pulley groove in the second fixed pulley (340) is consistent with the axial direction of the fixed seat (310); the third fixed pulley (350) is positioned at one end of the suspension (320), and the direction of the pulley groove in the third fixed pulley (350) is consistent with the direction of the pulley groove in the second fixed pulley (340).

3. The cable abrasion prevention rotary joint according to claim 2, wherein the paying out mechanism (300) further comprises a fixing rod (360) and a fourth fixed pulley (370), one end of the fixing rod (360) is fixedly connected with the suspension bracket (320), and the other end of the fixing rod is fixedly connected with the fourth fixed pulley (370).

4. The cable abrasion resistant rotary joint according to claim 3, wherein said fixing rod (360) is a hollow tube having an opening at its upper end corresponding to the direction of the pulley groove of said third fixed pulley (350) and an opening at its lower end corresponding to the direction of the pulley groove of said fourth fixed pulley (370).

5. The cable abrasion prevention rotary joint according to any one of claims 1 to 4, wherein two mounting grooves (130) are formed in the mounting seat (100) along the central axis, one of the rotary bearings (120) is disposed in the upper mounting groove (130), the other rotary bearing (120) is disposed in the lower mounting groove (130), and the rotary bearing (120) is fixed by a cap (140) and a screw.

6. The cable abrasion resistant rotary joint according to claim 4, wherein the direction of the pulley groove of the third fixed pulley (350), the direction of the central axis of the fixed rod (360) and the direction of the pulley groove of the fourth fixed pulley (370) are in the same vertical direction.

7. The cable abrasion prevention rotary joint according to claim 4, wherein a threading hole member (371) is further provided on the fourth fixed pulley (370), and the threading hole member (371) is fixedly connected with the fourth fixed pulley (370).

8. Cable wear resistant swivel according to claim 5, characterized in that the swivel cylinder (220) is a circular cylindrical open structure provided with a cylinder cover (222), the cylinder cover (222) being hinged to the swivel cylinder (220) and fixed by a pin.

9. Cable wear resistant swivel according to claim 1, characterized in that the insulating plate (211) is disc shaped with a diameter smaller than the inner diameter of the swivel (220), at least three equal height spacers (212) are arranged on the swivel (210), the insulating plate (211) is placed on the spacers (212) forming a separation from the swivel (210); the cushion block (212) is made of plastic, rubber or wood.

10. The cable abrasion prevention rotary joint according to claim 8, wherein a handle (223) is provided at the center of the upper surface of the cylinder cover (222), and a sleeve (224) is connected to the outside of the through hole (221) of the rotary cylinder (220).