CN111646379A

CN111646379A - Four-roller type steel wire rope guide mechanism

Info

Publication number: CN111646379A
Application number: CN201910206491.8A
Authority: CN
Inventors: 张伟; 唐坤; 代猛; 李文喜
Original assignee: Xiangyang Boya Precision Industrial Equipments Co Ltd
Current assignee: Xiangyang Boya Precision Industrial Equipments Co Ltd
Priority date: 2019-03-19
Filing date: 2019-03-19
Publication date: 2020-09-11

Abstract

A four-roller type steel wire rope guide mechanism is used for guiding a steel wire rope when the rope outlet direction of a winch drum is consistent with the load lifting direction. The four rollers are respectively fixed in the four longitudinal grooves of the mounting frame by four pin shafts to form a rope passing hole; the blocking piece is fixed at the bottom of the mounting frame through a screw, and the direction of the cross groove on the blocking piece is consistent with the direction of the four rollers; the upper portion of the mounting frame is provided with a first bearing, and the lower portion of the mounting frame is provided with a second bearing. During the use, pass through the bearing with guiding mechanism and install certain position on the winch barrel goes out the rope direction, the one end that is equipped with the separation blade is towards the load direction, and wire rope passes from crossing the rope downthehole, and when wire rope swung along with the load by a wide margin, wire rope card goes into the cross recess on the separation blade, drives guiding mechanism and wholly rotates. The invention realizes the guiding of the steel wire rope under the condition of not changing the direction of the steel wire rope, eliminates the interference of the swinging of the load on the arrangement of the steel wire rope on the winding drum, and simultaneously does not obstruct the normal operation of the steel wire rope.

Description

Four-roller type steel wire rope guide mechanism

Technical Field

The invention relates to the technical field of guide structures of various winch steel wire ropes, in particular to a four-roller type steel wire rope guide mechanism.

Background

The existing winches generally use fixed pulleys to realize the guiding of a steel wire rope. In order to guide the fixed pulley, the steel wire rope must form a certain wrap angle on the fixed pulley, so that the direction of the steel wire rope must be changed. In actual work, the rope outlet direction of a plurality of winches is consistent with the load lifting direction, the steel wire rope needs to be guided under the condition that the direction of the steel wire rope is not changed, and the fixed pulley cannot meet the use requirement. In such cases, many applications do not use a guide mechanism, and the steel cable is directly connected to the load after being paid out from the winch. Such as a commonly used traveling crane, an electric hoist, etc. The design can meet the use requirement under the conditions of short hoisting stroke, good use environment and low reliability requirement. However, when the hoisting is carried out in a long stroke, the use environment is severe, and the reliability requirement is high, the hoisted load usually swings to a large extent, the potential safety hazard is great, and if a steel wire rope guide mechanism is not used, the swinging of the load can directly interfere the arrangement of the steel wire rope on the winding drum, particularly the multi-layer winding drum, and rope disorder is easy to occur.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a four-roller type steel wire rope guiding mechanism for guiding a steel wire rope when a rope-discharging direction of a winch drum is consistent with a load-lifting direction.

In order to achieve the purpose, the four rollers are respectively fixed in the four longitudinal grooves of the mounting frame through four pin shafts to form a rope passing hole; the blocking piece is fixed at the bottom of the mounting frame through a screw, and the direction of the cross groove on the blocking piece is consistent with the direction of the four rollers; the upper portion of the mounting frame is provided with a first bearing, and the lower portion of the mounting frame is provided with a second bearing.

The inner side of each cross-shaped groove corresponds to one roller.

The mounting bracket is provided with a cavity which runs through along two mutually perpendicular axes, four longitudinal grooves of the mounting bracket are uniformly distributed on the axis of the mounting bracket, four rollers form a rope passing hole in the cavity, and the diameter of the rope passing hole is larger than that of the steel wire rope.

The excircle of the roller is provided with a groove matched with the steel wire rope, a rolling bearing is embedded in the groove, and the roller is connected with the pin shaft in a rolling manner through the rolling bearing.

The first bearing and the second bearing are respectively installed and fixed on the rope outlet direction of the winch drum and the position of the load end.

The separation blade is made of bronze materials.

When the rope guiding mechanism is used, the guiding mechanism is fixedly installed at a certain position in the rope outlet direction of the winch drum through the bearing I and the bearing II, one end provided with the blocking piece faces the load direction, and the steel wire rope penetrates through the rope passing hole. Because the guide mechanism can freely rotate around the axis through the bearing I and the bearing II, when the steel wire rope greatly swings along with the load, the steel wire rope can be clamped into the cross groove on the blocking piece to drive the guide mechanism to integrally rotate; and the inner side of each cross groove corresponds to one roller, so that the steel wire rope always falls on one roller and cannot be clamped by gaps among the four rollers.

Compared with the prior art, the invention realizes the guiding of the steel wire rope under the condition of not changing the direction of the steel wire rope, eliminates the interference of the swinging of the load on the arrangement of the steel wire rope on the winding drum, can avoid the rope disorder caused by the interference of the external environment, and simultaneously does not hinder the normal operation of the steel wire rope.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a bottom view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a schematic diagram of the application of the present invention.

In the figure: 1. the device comprises a mounting frame, 2, rollers, 3, a pin shaft, 4, a blocking piece, 5, bearings I and 6, bearings II and 7, screws, 8, rope passing holes, 9, a cross groove, 10 and a steel wire rope.

Detailed Description

As shown in fig. 1, 2, 3 and 4, the mounting bracket 1 of the invention is provided with a cavity penetrating along two mutually perpendicular axes, four longitudinal grooves of the mounting bracket 1 are uniformly distributed on the axis of the mounting bracket 1, four rollers 2 are respectively fixed in the four longitudinal grooves of the mounting bracket 1 by four pin shafts 3 to form a rope passing hole 8, the diameter of the rope passing hole 8 is slightly larger than that of a steel wire rope, the outer circle of each roller 2 is provided with a groove matched with the steel wire rope, a rolling bearing is embedded in each groove, and each roller 2 is in rolling connection with the pin shaft 3 through the rolling bearing. Separation blade 4 is fixed in the bottom of mounting bracket 1 by four screws 7, and separation blade 4 adopts the bronze material preparation, can effectively avoid the wearing and tearing to wire rope, and the cross recess orientation on the separation blade 4 is unanimous with four gyro wheel 2's direction, and every inboard of cross recess 9 all corresponds with a gyro wheel 2. The upper part of the mounting rack 1 is provided with a first bearing 5, and the lower part of the mounting rack is provided with a second bearing 6.

When the winch is used, the bearing I5 and the bearing II 6 are respectively installed and fixed at the rope outlet direction and the load end position of the winch drum, one end provided with the blocking piece 4 faces the load direction, and the steel wire rope 10 penetrates through the rope through hole 8. Because the guide mechanism can freely rotate around the axis of the guide mechanism through the first bearing 5 and the second bearing 6, when the steel wire rope 10 greatly swings along with the load, the steel wire rope 10 can be clamped into the cross groove 9 on the blocking piece 4 to drive the guide mechanism to integrally rotate; each inner side of the cross groove corresponds to one roller 2, so that the steel wire rope always falls on one roller 2 and cannot be clamped by gaps among the four rollers 2.

The guide mechanism eliminates the interference of the swinging of the steel wire rope 10 at the load end to the reel end through the partial incomplete restraint on the steel wire rope 10, can provide good input conditions for rope winding, and plays a good guide role for the steel wire rope 10.

Claims

1. The utility model provides a four roller type wire rope guiding mechanism which characterized in that: four rollers (2) of the guide mechanism are respectively fixed in four longitudinal grooves of the mounting frame (1) by four pin shafts (3) to form a rope passing hole (8); the blocking piece (4) is fixed at the bottom of the mounting frame (1) through a screw (7), and the direction of a cross groove (9) in the blocking piece (4) is consistent with the direction of the four rollers (2); a first bearing (5) is installed on the upper portion of the installation frame (1), and a second bearing (6) is installed on the lower portion of the installation frame.

2. The four-roller wire rope guide mechanism of claim 1, wherein: the inner sides of the cross grooves (9) correspond to a roller (2).

3. The four-roller wire rope guide mechanism of claim 1, wherein: mounting bracket (1) has the cavity that runs through along two mutually perpendicular's axis, and four vertical slot equipartitions of mounting bracket (1) are on the axis of mounting bracket (1), four gyro wheels (2) form one in the cavity and cross rope hole (8), and the diameter of crossing rope hole (8) is greater than wire rope's diameter.

4. The four-roller wire rope guide mechanism of claim 1, wherein: the excircle of the roller (2) is provided with a groove matched with the steel wire rope, a rolling bearing is embedded in the groove, and the roller (2) is connected with the pin shaft (3) in a rolling way through the rolling bearing.

5. The four-roller wire rope guide mechanism of claim 1, wherein: and the bearing I (5) and the bearing II (6) are respectively installed and fixed on the rope outlet direction of the winch drum and the position of the load end.

6. The four-roller wire rope guide mechanism of claim 1, wherein: the separation blade (4) is made of bronze materials.