WO2011079600A1

WO2011079600A1 - Explosion proof cable winding drum

Info

Publication number: WO2011079600A1
Application number: PCT/CN2010/074483
Authority: WO
Inventors: 金嵘; 庄德胜; 杨庆丰; 丛日永; 张宁; 迟玉华
Original assignee: 湖南三一智能控制设备有限公司; 三一重型装备有限公司
Priority date: 2009-12-29
Filing date: 2010-06-25
Publication date: 2011-07-07
Also published as: ZA201200087B; RU2507657C2; CN201639136U; AU2010338855A1; RU2012101879A

Abstract

An explosion proof cable winding drum comprises a main shaft assembly (1), a slip ring assembly (6), taper roller bearings (2), and a case assembly(4) of the cable winding drum. An explosion proof cavity (3) is disposed inside the main shaft assembly. The explosion proof cavity is disposed at one end of the main shaft assembly and is positioned at the end of the explosion proof cable winding drum. A pair of taper roller bearings are installed on the main shaft assembly. The explosion proof cable winding drum increases the electric clearance between related parts, improves the assembling performance, and raises the assembling efficiency.

Description

Explosion-proof cable reel

The present application claims priority to Chinese Patent Application No. 200920350073.8, entitled "A Flameproof Cable Reel", which is incorporated herein by reference. . Technical field

The utility model relates to a cable winding device, in particular to an explosion-proof cable reel. Background technique

As shown in Figure 1, the structure of the explosion-proof cable reel used in the shuttle bus mainly includes: a spindle assembly 1, two tapered roller bearings 2 (tapered roller bearing A and tapered roller bearing B), an explosion-proof chamber 3, Reel housing assembly 4, explosion-proof terminal block 15, slip ring assembly 6, moving slip ring seat 8, slip ring shaft 10, slip ring 11, wiring chamber 12, large sprocket 13, explosion-proof terminal II 14, transmission rod 15 Etc., its specific structure is as follows:

The reel housing assembly 4 forms two independent cavities: an explosion-proof chamber 3 and a wiring chamber 12, one side of the explosion-proof chamber 3 is provided with a spindle assembly 1, and the other side of the explosion-proof chamber 3 is provided with a slip ring shaft 10, A tapered roller bearing 2 is respectively disposed on the explosion-proof chamber 3 and the spindle assembly 1, and a wiring chamber 12 is formed between the reel housing assembly 4 and the explosion-proof chamber 3 and the spindle assembly 1, and a reel outside the explosion-proof chamber 3 The outer casing assembly 4 is provided with an explosion-proof terminal I 5 , the explosion-proof terminal I 5 - end extends into the wiring chamber 12 , the explosion-proof chamber 3 is provided with an explosion-proof terminal II 14 , and the outer end of the reel housing assembly 4 is provided with a large sprocket 13. The slip ring assembly 10 is provided with a slip ring assembly 6 . The slip ring assembly 6 includes a slip ring 11 and a moving slip ring seat 8 mounted on the slip ring 10 , and the movable slip ring seat 8 is fixed and slipped through the transmission rod 15 . The ring 11 is a pair of relative movements, one is stationary with respect to the slip ring shaft 10, and the other is moved relative to the slip ring shaft 10, while the slip rings 11 are in close contact with each other by the spring pressure on the outer side of the slip ring 11 (see Chinese invention patent) Application, publication number: CN101442172A).

The basic principle of the above-mentioned flameproof cable reel is: The current collecting slip ring is used to convert the external rotating current into a static current to supply power to the device, but the local structure is unreasonable (the clearance is too small, the assembly is difficult), Features are not completely safe to implement. Summary of the invention

The utility model aims to provide a novel explosion-proof cable reel and solve the traditional cable coil The local electrical clearance caused by the unreasonable internal structure of the cylinder is too small and the assembly is difficult, so that there is a problem of safety hazard.

The technical solution of the utility model is:

An explosion-proof cable reel having a spindle assembly, a slip ring shaft, a slip ring assembly, a tapered roller bearing, a reel housing assembly and an explosion-proof chamber; the slip ring assembly is disposed outside the slip ring shaft, the sliding The ring shaft is provided with a sliding ring shaft cavity in the axial direction, the spindle assembly is provided with a spindle cavity in the axial direction; one end of the spindle assembly is fixedly connected with the sliding ring shaft, and the other end of the spindle assembly is internally The explosion-proof cavity is disposed, the main shaft cavity is located between the slip ring shaft cavity and the explosion-proof cavity; the tapered roller shaft is disposed on the spindle assembly, the reel housing assembly Driven by the tapered roller bearing. The explosion-proof cable reel, the explosion-proof terminal in the reel housing assembly is evenly distributed in the circumferential direction.

The flameproof cable reel, the moving slip ring of the slip ring assembly is externally mounted with a driving plate.

In the flameproof cable reel, the sliding ring assembly has a thrust bearing at the end of the slip ring shaft.

The beneficial effects of the utility model are:

1. The explosion-proof cable reel of the utility model has a spindle assembly, a slip ring assembly and a reel housing. The pair of tapered roller bearings of the reel are completely mounted on the spindle assembly to ensure smooth movement. The main shaft assembly is provided with an explosion-proof chamber inside and at the end of the reel, which makes assembly more convenient. The drive plate mounted on the outside of the moving slip ring seat increases the clearance and improves the assembly. A thrust bearing is added to the end of the slip ring assembly to improve the movement between the slip rings and improve safety. An explosion-proof terminal that is approximately evenly distributed in the circumferential direction effectively increases the electrical clearance, thereby improving safety and completely eliminating the safety hazard of the cable drum.

2. The cable drum of the utility model is designed according to GB3836.1-2000 "General Requirements for Electrical Equipment for Explosive Gas Environments" and GB3836.2-2000 "Explosion-proof Type for Electrical Equipment for Explosive Gas Environments" "d". Explosion-proof electrical equipment. The explosion-proof reel housing is made of steel plate welded with two independent chambers connected by terminals, with protection class IP54, to adapt to special flammable hazardous situations. DRAWINGS

1 is a schematic view showing the structure of a conventional explosion-proof cable reel.

2 is a schematic view showing the structure of the explosion-proof cable reel of the present invention. Figure 3 is a schematic view of the slip ring assembly after the components such as the slip ring cover are removed.

In the figure, 1, the spindle assembly; 2, tapered roller bearing; 3, explosion-proof cavity; 4, reel shell assembly; 5, explosion-proof terminal I; 6, slip ring assembly; 7, drive plate; Ring seat; 9, thrust bearing; 10, slip ring shaft; 11, slip ring; 12, wiring cavity; 13, large sprocket; 14, explosion-proof terminal II; 15, transmission rod (same function as the drive plate) the way

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in FIG. 2 to FIG. 3, the explosion-proof cable reel of the present invention mainly comprises: a spindle assembly 1, a slip ring assembly 6, a tapered roller bearing 2 and a reel housing assembly 4, and a slip ring is arranged on one side of the main shaft assembly 1 The assembly 6, the spindle assembly 1 is mated with the reel housing assembly 4 by a tapered roller bearing 2. The difference from the existing technology is:

The pair of tapered roller bearings 2 used in the explosion-proof cable reel of the present invention are all mounted on the spindle assembly 1, and the explosion-proof cable reel is divided into two parts, inner and outer by two tapered roller bearings 2: internal main shaft The component 1 is provided with an explosion-proof chamber 3, and the explosion-proof chamber 3 is located at one end of the spindle assembly 1 and at the end of the explosion-proof cable reel. The spindle assembly 1 is fixed to the body of the shuttle, and the body of the shuttle is stationary; The reel housing assembly 4 is provided with a wiring compartment 12, and the reel housing assembly 4 and the spindle assembly 1 are driven by two tapered roller bearings 2 on the spindle assembly 1 to cause the reel housing assembly 4 to rotate relative to the spindle assembly 1. .

In the utility model, the explosion-proof terminal 15 in the drum casing assembly 4 is evenly distributed in the circumferential direction;

In the utility model, the moving slip ring seat 8 of the slip ring assembly 6 is externally mounted with the drive plate 7;

In the utility model, a thrust bearing 9 is disposed at the end of the slip ring assembly of the slip ring assembly 6.

The external cable is introduced into the explosion-proof terminal 15 at the end of the wiring chamber 12 by the wiring cavity 12 in the reel housing assembly 4, and the wiring is connected from the other end of the explosion-proof terminal I 5 to a pair of sliding for relative rotational movement. On the ring 11 (the slip ring 11 is mounted on the slip ring shaft 10, and the slip ring shaft 10 is fixed to the spindle assembly 1). A pair of slip rings 11 that move relative to each other, one is stationary relative to the slip ring shaft 10, and the other is moved relative to the slip ring shaft 10, while the slip rings 11 are in close contact with each other by spring pressure on the outer side of the slip ring 11. The wiring is further introduced into the explosion-proof terminal II 14 in the explosion-proof chamber 3 of the spindle assembly 1 via the slip ring 11 which is stationary relative to the slip ring shaft 10 via the cavity of the slip ring shaft 10, and then by the explosion-proof terminal II 14 One end is led out to the required equipment via a cable (eg shuttle, etc.).

In operation, the large sprocket 13 is driven by the motor, the large sprocket 13 is fixed to the reel housing assembly 4, and the reel housing assembly 4 is rotated relative to the main shaft assembly 1, and the current in the cable is sequentially exploded through the wiring chamber 12. The terminal I 5, the sliding ring 11 for relative movement, and the explosion-proof terminal II 14 in the explosion-proof chamber 3, in this way, the rotating current is safely converted into a relatively static current and finally delivered to the device.

Claims

Rights request

1 . An explosion-proof cable reel having a spindle assembly, a slip ring shaft, a slip ring assembly, a tapered roller bearing, a reel housing assembly and an explosion-proof chamber; the slip ring assembly is disposed outside the slip ring shaft The sliding ring shaft is provided with a sliding ring shaft cavity in the axial direction, and the spindle assembly is provided with a spindle cavity in the axial direction; wherein: one end of the spindle assembly is fixedly connected with the sliding ring shaft, the spindle The other end of the assembly is provided with the explosion-proof cavity, the spindle cavity is located between the slip ring shaft cavity and the explosion-proof cavity; the tapered roller bearing is disposed on the spindle assembly, The reel housing assembly is driven by the tapered roller bearing.

2. The flameproof cable reel according to claim 1, wherein: the explosion-proof terminal in the reel housing assembly is evenly distributed in the circumferential direction.

3. A flameproof cable reel according to claim 1 wherein: the drive ring is externally mounted to the slip ring housing of the slip ring assembly.

A flameproof cable reel according to claim 1, wherein: the end of the slip ring of the slip ring assembly is provided with a thrust bearing.