CN204980666U - Cable winch that one end riding wheel supported - Google Patents

Abstract

The utility model relates to a cable winch supported by a supporting wheel at one end, which has a drum, the outside of the drum is used for winding cables, and the inside of the drum is equipped with slip rings and carbon brushes. One end of the reel is supported by a shaft end, and the other end is supported by a supporting wheel, so that the end cover 1 of the reel can be opened conveniently, and the carbon brushes, slip rings and other devices in the reel can be overhauled. Supporting rollers 12 are installed under the side of the reel end cover, one on each side of the reel axis. Close to the end cap place on the reel, install wheel rim 2. Two support rollers maintain good contact with the rim and support the weight of that end of the drum. The reel can be driven by the end of the shaft or by the supporting wheel. The cable winch uses the cable arrangement 4, which is driven by the reel drive system through the driving sprocket 9, the chain 10, and the driven sprocket 11 to drive the two-way lead screw 5. The two-way lead screw can complete the reversing movement of the cable puller without changing the rotation direction of the lead screw.

Description

A cable winch supported by a supporting wheel at one end

technical field

The cable winch mentioned in this manual is a kind of equipment for rolling and unwinding cables, which is used to keep the cables connected between two relatively moving objects in a smooth and proper state of tension, so as to prevent scratching and entanglement with surrounding objects, and produce Accidents such as dead knots breaking. One part of the device is a cylindrical (or polygonal) object used for winding and storing cables.

The adaptability of the cable winch is strong, and the relatively moving objects connected generally have no fixed moving track or route (such as the ocean probe towed by the scientific research ship). If it is installed on a moving object, in addition to the movement of the moving object itself has no fixed moving track or route, the non-moving object connected to the cable released from the reel generally changes frequently (such as shore power feed shipboard cable) winch). In order to adapt to the working conditions without a specific track, the cable winch needs manual intervention to operate. The cable winch has high requirements on the guiding of the moving cables. The reel for winding the moving cables is generally equipped with a cable guide, and sometimes other guiding devices.

Background technique

There is a lot of space inside the drum of the cable winch. In order to make the equipment compact, the carbon brush-slip ring group is generally installed in the reel. The carbon brush-slip ring group is a sliding electrical contact electrically, and the carbon brush is a consumable item. It needs to open the reel for regular inspection and maintenance. Generally, the end plate on one side of the reel needs to be made into a detachable end cover. The reel will rotate during work, so it is necessary to support the reel to facilitate its rotation. Most of the current reels are supported by shaft ends at both ends, that is, bearings are installed on the central shaft of the reel, and the reel is installed on the base through the bearings, and the base supports the weight of the reel through the bearings on the central shaft of the reel. The shaft end support hinders the removal of the end cover of the reel, and the end cover of the reel needs to be removed to open the end cover of the reel. This will cause a lot of trouble for the inspection and maintenance of the carbon brush-slip ring.

Contents of the invention

In order to solve the problem of inspection and maintenance of the carbon brush-slip ring assembly, one end of the reel of the utility model is still supported by a shaft end, and the other end is supported by a supporting wheel. The use of supporting rollers will not hinder the opening of the end cover of the reel, so that the devices in the reel can be easily maintained.

The main part of the roller support is two rollers and a rim. Supporting rollers are installed under the side of the end cover of the reel, one on the left and right sides of the reel axis. Install the rim on the reel close to the end cover. Two idlers maintain good rolling contact with the rim, supporting the weight of that end of the drum. The angle formed by the centers of the two supporting rollers to the center of the reel is generally between 45°-120°. Unless otherwise required, the two support rollers are generally arranged symmetrically to the vertical center plane of the reel, forming a stable triangle.

The drive of the reel can use conventional shaft end drive. In this driving mode, the drive motor drives the reel spindle through the reducer to drive the reel. At this time, if a reducer with a hollow shaft is used, one end of the central shaft of the reel can be inserted into the hollow shaft of the reducer, and the bearing of the reducer can be used to support the shaft end.

It is also possible to drive the reel by driving the idler. In this driving mode, tooth profiles are machined on the support roller and the rim to mesh with each other. The motor drives the toothed supporting wheel through the reducer to drive the toothed rim to drive the reel.

In order to make the moving cables neatly wound on the reel, the cables on the reel are retracted through the cable guide. The cable guide is also driven by the transmission system of the reel: install the driving sprocket on the main shaft of the reel, drive the driven sprocket through the chain, drive the lead screw of the cable guide to rotate, and drive the cable guide to cooperate with the retraction and release of the cables on the reel Synchronized movement.

When the moving cable is very long, if only one layer is wound on the drum like a steel wire rope drum, the volume of the drum will be large. For this reason, winding multi-layer cables on the drum can be considered. When the layer of cable on the reel is full, the cable needs to be wound on this layer of cable. At this time, the reel needs to continue to rotate in the original direction, and the synchronously driven lead screw also continues to rotate in the original direction, but the cable The device needs to move in the opposite direction to arrange the wires back, and the general one-way screw screw cannot meet this requirement. The utility model uses a two-way lead screw to drive the wire arranging device, which can solve the problem of reversing.

On the two-way screw, left-handed and right-handed threads are engraved crosswise. Except for the direction of rotation, the parameters of the pitch and groove shape of the two threads are the same. Connects smoothly with right-hand threads. The slider is embedded in the thread of a certain direction of rotation, and the slider pushes the cable puller to move. After the slider moves to the end of a certain helical thread, it begins to enter the transitional thread, and the slider gradually changes direction under the pressure of the transitional thread. When the slider enters the anti-rotational thread, the reversing of the cable puller is completed.

Description of drawings

Accompanying drawing 1 is a schematic diagram of a cable winch supported by a supporting wheel at one end, in which the reel is driven by a shaft end. In the figure, 1 is the reel end cover, 2 is the wheel rim, 3 is the moving cable, 4 is the cable guide, 5 is the cable screw, 6 is the fixed end plate of the reel, 7 is the reel drive motor, and 8 is the deceleration Machine, 9 is driving sprocket, 10 is chain, and 11 is driven sprocket. Accompanying drawing 2 is the left view of accompanying drawing 1, and the reel cover has been unloaded. Among the figure, 3 is a moving cable, 4 is a cable guide, 12 is a supporting wheel, 13 is a carbon brush, 14 is a slip ring, and 15 is a reel.

Accompanying drawing 3 is the schematic diagram of two-way lead screw. Among the figure, 21 is a left-handed thread, 22 is a right-handed thread, 23 is a slide block in a left-handed thread, 24 is a transition thread, and 25 is a slide block in a transition thread.

detailed description

As shown in FIGS. 1 and 2 , an axle end support is used at one end of the reel 15 . The shaft end support can use separate bearings, bearing housings, or use the bearings of the reducer. What Fig. 1 shows is to utilize the bearing of speed reducer 8 to support. The other end of the drum is supported using two idlers 12 arranged under the side of the drum 15 . Centers A and B of the two supporting rollers and the center O of the reel form an isosceles triangle. Unless otherwise required, the two supporting wheels are generally arranged symmetrically to the vertical center plane of the reel. Wheel rim 2 is installed on the reel 15, and the surface has better cylindricity, and its center line coincides with the reel main shaft center line. The reel 15 can rotate smoothly under the support of the shaft end-supporting roller.

A carbon brush 13 and a slip ring 14 are installed in the reel, and the electrical connection between the mobile cable rotating on the reel and the fixed electrical equipment is completed through the carbon brush-slip ring group. There is an end cover 1 at one end supported by the reel supporting wheel. Because there is no hindrance of the shaft end support, the end cover 1 can be easily removed to inspect and maintain the facilities in the reel. The end plate 6 at the other end of the reel can be connected with the reel body with bolts, or can be connected by electric welding. The mobile cable 3 is wound outside the drum.

The cable winch shown in FIG. 1 is driven by a shaft end, and the drive motor 7 drives the drum main shaft through a reducer 8 to drive the drum. In addition to driving the reel, the speed reducer 8 also undertakes the task of supporting the shaft at one end of the reel. In the shaft end drive mode, the supporting roller only undertakes the support of one end of the reel, and does not undertake other tasks.

It is also possible to drive the reel by driving the supporting wheel. In this driving mode, the tooth shape is processed on the supporting wheel 12 and the rim 2 to mesh with each other. The supporting wheel and the rim are actually gears, and the drive motor is driven by a reducer. The toothed supporting wheel drives the large ring gear to drive the reel. The structure of the cable winch driven by this type of drive is not much different from that of the shaft end driven cable winch. The motor driving the supporting wheel generally still needs to be reduced by a reducer, but due to the deceleration effect of the toothed supporting wheel and the large ring gear, the reducer can be small.

The cable winch is equipped with a wire deflector 4, and the wire deflector 4 is also driven by the reel transmission system. On the main shaft of the reel, the driving sprocket 9 is installed, and the driven sprocket 11 is driven by the chain 10 to drive the two-way lead screw 5 to rotate synchronously with the reel, and the reel rotates once, and the lead screw 5 drives the cable guide 4 to fit Move the distance of one cable diameter in the same direction, so that the moving cable is wound neatly on the reel.

In order to solve the multi-layer winding of the cable winch, it is necessary to solve the problem of the reversing of the cable guide. For this reason, the lead screw of the cable guide adopts a two-way screw.

The two-way lead screw is shown in Figure 2. On the two-way screw, left-handed and right-handed threads are engraved crosswise. Except for the direction of rotation, the parameters of the pitch and groove shape of the two threads are the same. The slider is embedded in the thread of a certain direction of rotation, and the slider 23 in the figure is embedded in the left-handed thread 21, and the slider 23 pushes the cable puller to move, and the cable puller is not shown in the figure. At the end of the lead screw, there is a transitional thread 24 to smoothly connect the left-handed thread 21 and the right-handed thread 22 . After the slide block moves to the end of a certain helical thread, it begins to enter the transition thread 24, and the slide block gradually changes direction by being suppressed by the transition thread. The slide block 25 among the figure represents the position in the middle of the transition thread, and the slide block is at the end of the leading screw at this moment. When the slider enters the anti-rotation thread, the reversing of the cable puller is completed.

Claims (6)

1. the cable winch of one end support roller support, there is a reel, the outside of reel is used for drum cable, inner installing slip ring and carbon brush, two electrical equipments relatively moved freely are connected by the removal cable on undinding and rewinding drum, it is characterized in that: one end of reel adopts axle head to support, the other end of reel adopts support roller to support, support roller is installed in the side-lower at winding drum end cover place, each one of the left and right of spool axis, near end caps on reel, installing wheel rim, two support rollers and wheel rim keep good contact, support the weight of this end of reel.

2. the cable winch of one end according to claim 1 support roller support, is further characterized in that: reel uses axle head to drive, and motor drives spool spindle to drive reel by reductor.

3. the cable winch of one end according to claim 2 support roller support, is further characterized in that: support to the axle head of reel one end the bearing can using reductor and realize.

4. the cable winch of one end according to claim 1 support roller support, be further characterized in that: support roller is except providing the support to reel one end, driving to reel is also provided, in that driving mode, support roller and wheel rim process profile of tooth, intermesh, motor drives toothed support roller to drive toothed wheel rim to drive reel by reductor.

5. the cable winch of one end according to claim 1 support roller support, is further characterized in that: the cable on reel is by strand oscillator folding and unfolding.

6. the strand oscillator of the cable winch of one end according to claim 5 support roller support, is further characterized in that: the two-way leading screw of strand oscillator drives, when strand oscillator moves to reel ends, due to the automatic reverse effect of two-way leading screw, and can from trend Return-ing direction winding displacement.