CN213231157U

CN213231157U - Tail rope guiding device

Info

Publication number: CN213231157U
Application number: CN202021463070.8U
Authority: CN
Inventors: 柳晓飞; 关正涛; 黄兴鹏; 蔡伟; 丁毅; 韩树浩; 何兵; 巩翔; 李康
Original assignee: Huainan Mining Group Co Ltd
Current assignee: Huainan Mining Group Co Ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-05-18
Anticipated expiration: 2030-07-22

Abstract

The utility model discloses a tail rope guiding device, which comprises a base, wherein a main shaft is fixed on the base; the spindle is sleeved with a spindle sleeve, and the spindle sleeve is in rotating fit with the spindle; the main shaft is longer than the shaft sleeve; and two ends of the shaft sleeve are respectively provided with an annular flange. Through the rotating fit of the shaft sleeve 2 and the main shaft, the friction loss of the tail rope can be reduced, the service life of the tail rope guide device is prolonged, the tail rope guide part can rotate along with the tail rope, and the wellhead casing frame is protected from deformation; because the length of the main shaft is greater than that of the shaft sleeve, the width of the guide point is greater, and the guide point can move as required.

Description

Tail rope guiding device

Technical Field

The utility model relates to a mining machinery technical field specifically is a tail rope guider.

Background

The tail rope is an important component of a coal mine vertical shaft multi-rope friction wheel lifting system, two ends (2 tail ropes are generally designed and configured for a lifting container) of the tail rope are respectively connected and hung at the bottoms of 2 lifting containers (such as an auxiliary shaft cage or a main shaft skip bucket) to form an annular running system consisting of the lifting rope, the lifting container, the tail rope, the lifting container and the lifting rope, and the tail rope plays a balance role in the lifting system.

At present, a guide device of a wellhead tail rope generally fixes a guide rod on a wellhead frame, the tail rope passes through the guide rod, but the guide rod cannot rotate along with the tail rope, so that the stress of the guide rod is concentrated, and the wellhead frame is easy to deform. In addition, because the guide rod is welded based on the structure of the sleeve frame, the guide rod is overlong in size, and the guide point can only move in a single direction, so that the position of the guide point is not easy to control.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve lies in:

firstly, the tail rope has heavy self weight, and the stress at the guide part is large;

secondly, the guide part of the tail rope cannot rotate along with the tail rope, so that the stress at the guide part is concentrated, and the deformation of a wellhead sleeve frame is easily caused;

the width of the guide point is large, the guide point can only move in a single direction, and the position of the guide point is not easy to control;

fourthly, the width of the wellhead sleeve frame is large, and the strength of the seamless steel pipe cannot meet the requirement.

The utility model discloses a following technical means realizes solving above-mentioned technical problem:

a tail rope guide device comprises a base (3), wherein a main shaft (1) is fixed on the base (3); the spindle (1) is sleeved with a spindle sleeve (2), the spindle sleeve (2) is in running fit with the spindle (1), and the spindle (1) is longer than the spindle sleeve (2);

two ends of the shaft sleeve (2) are respectively provided with an annular flanging (24).

The shaft sleeve is in running fit with the main shaft, so that the friction loss of the tail rope can be reduced, the service life of the tail rope guide device is prolonged, the tail rope guide part can rotate along with the tail rope, and the wellhead casing frame is protected from deformation; because the length of the main shaft is greater than that of the shaft sleeve, the width of the guide point is greater, and the guide point can move as required;

the shaft sleeve (2) comprises an inner cylinder (21) and an outer cylinder (22), the inner cylinder (21) is coaxially sleeved in the outer cylinder (22), and the corresponding end faces of the inner cylinder (21) and the outer cylinder (22) are plugged by using a sealing plate (23); a gap is formed between the inner cylinder (21) and the outer cylinder (22); the main shaft (1) is sleeved in the inner cylinder (21).

The two ends of the outer cylinder (22) are respectively provided with the annular flanges (24).

Annular flanges (24) at two ends of the outer cylinder (22) and the outer wall of the outer cylinder (22) form an annular horn-shaped guide structure.

The spindle (1) is made of solid round steel, the inner cylinder (21) and the outer cylinder (22) are both made of seamless steel tubes, and the inner diameter of the inner cylinder (21) is slightly larger than the outer diameter of the spindle (1).

Lubricating grease is coated between the main shaft (1) and the inner cylinder (21).

The base (3) comprises two side plates (31), the two side plates (31) are vertically arranged in parallel, and the two side plates (31) are connected into a whole through a connecting rod (32); the tops of the two side plates (31) are both provided with a main shaft (1) hole for the main shaft (1) to pass through.

Further, the main shaft (1) and the rotating shaft hole are welded and fixed.

The utility model has the advantages that:

the design of turn-ups can avoid the skew guide point of tail rope, prevents to damage the tail rope.

The shaft sleeve adopts the design mode of the inner cylinder and the outer cylinder, so that the diameter of the shaft sleeve can be increased, and the tail rope is prevented from being bent and damaged; under the pressure of the tail rope, even if the outer cylinder is deformed, the inner cylinder cannot be deformed under the separation of the gap between the inner cylinder and the outer cylinder, so that the rotating fit between the inner cylinder and the main shaft cannot be influenced.

The base is made of steel plates which are vertically arranged, so that the strength of the base can be guaranteed while the structure of the base can be simplified.

Drawings

Fig. 1 is a schematic view of the overall structure of a tail rope guide device in an embodiment of the present invention;

fig. 2 is a schematic end face structure diagram of the outer cylinder in the embodiment of the present invention.

1. A main shaft; 2. a shaft sleeve; 21. an inner barrel; 22. an outer cylinder; 23. closing the plate; 24. flanging; 3. a base; 31. a side plate; 32. a connecting rod; 33. and (7) mounting a seat.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The embodiment is a tail rope guiding device, which comprises a base 3, wherein a main shaft 1 is fixed on the base 3; the spindle 1 is sleeved with a spindle sleeve 2, and the spindle sleeve 2 is in running fit with the spindle 1. The concrete structure is as follows:

in this embodiment, the base 3 includes both sides board 31, and the steel sheet that intensity satisfied the demand is adopted to the curb plate 31, and the vertical parallel arrangement of both sides board 31, like the I-steel. The two side plates 31 are connected into a whole through a connecting rod 32, and the connecting rod 32 is also made of steel. A small-area steel plate is additionally welded on the tops of the two side plates 31 to serve as an installation seat 33 for fixing the spindle 1, and a spindle 1 hole for the end of the spindle 1 to penetrate through is formed in the installation seat 33.

In this embodiment, main shaft 1 adopts the solid round steel preparation that the diameter satisfies the demand, and main shaft 1 and pivot hole welded fastening, when using promptly, main shaft 1 does not rotate.

In this embodiment, the length of the main shaft 1 is longer than that of the shaft sleeve 2, so that the shaft sleeve 2 can move left and right conveniently.

In this embodiment, the shaft sleeve 2 includes an inner cylinder 21 and an outer cylinder 22, both the inner cylinder 21 and the outer cylinder 22 are made of seamless steel pipes, and the inner diameter of the inner cylinder 21 is slightly larger than the outer diameter of the main shaft 1, so as to avoid an overlarge gap and an unstable integral structure during rotation. The inner cylinder 21 is coaxially sleeved in the outer cylinder 22, the corresponding end surfaces of the inner cylinder 21 and the outer cylinder 22 are plugged by an annular sealing plate 23, and the annular sealing plate 23 is also a steel plate; the gap is formed between the inner cylinder 21 and the outer cylinder 22, and the gap is designed to prevent the inner cylinder 21 from deforming under the separation of the gap when the outer cylinder 22 deforms under the pressure of the tail rope, so that the overall rotation effect of the shaft sleeve 2 is prevented from being influenced. Annular flanges 24 are provided at both ends of the outer cylinder 22, respectively. In this embodiment, the angle between the annular flange 24 and the outer wall of the outer cylinder 22 is greater than 90 ° so as to form a larger guide opening. Of course the included angle may also be 90.

Through the design of inner tube 21 and urceolus 22, can satisfy the little clearance fit of axle sleeve 2 with main shaft 1, can make the diameter of axle sleeve 2 enough big again, avoid the tail rope rupture, can also realize that urceolus 22 warp and do not influence the whole effect of rotating of axle sleeve 2.

In this embodiment, the sleeve 2 and the spindle 1 are rotationally engaged with each other, and lubricating oil is injected between the inner cylinder 21 and the spindle 1 to form a lubricating layer in order to reduce friction.

When the device is used, a person selects the installation position of the tail rope guide device according to the tail rope outlet direction, the person firstly arranges two I63b I-steel bottom beams on the wellhead fore shaft girder and connects the bottom beams into a frame, then the person installs the tail rope guide device together with the base on the bottom beams, and the tail rope is connected with a stable vehicle through the tail rope guide device after being turned over.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A tail rope guider which characterized in that: comprises a base (3), a main shaft (1) is fixed on the base (3); the spindle (1) is sleeved with a spindle sleeve (2), and the spindle sleeve (2) is in running fit with the spindle (1); the main shaft (1) is longer than the shaft sleeve (2);

two ends of the shaft sleeve (2) are respectively provided with an annular flanging (24); the shaft sleeve (2) comprises an inner cylinder (21) and an outer cylinder (22), the inner cylinder (21) is coaxially sleeved in the outer cylinder (22), and the corresponding end faces of the inner cylinder (21) and the outer cylinder (22) are plugged by using a sealing plate (23); a gap is formed between the inner cylinder (21) and the outer cylinder (22); the main shaft (1) is sleeved in the inner cylinder (21).

2. A tail-cord guide as claimed in claim 1, wherein: the two ends of the outer cylinder (22) are respectively provided with the annular flanges (24).

3. A tail-cord guide as claimed in claim 2, wherein: annular flanges (24) at two ends of the outer cylinder (22) and the outer wall of the outer cylinder (22) form an annular horn-shaped guide structure.

4. A tail-cord guide as claimed in any one of claims 1 to 3, wherein: the spindle (1) is made of solid round steel, the inner cylinder (21) and the outer cylinder (22) are both made of seamless steel tubes, and the inner diameter of the inner cylinder (21) is slightly larger than the outer diameter of the spindle (1).

5. A tail-cord guide as claimed in any one of claims 1 to 3, wherein: lubricating grease is coated between the main shaft (1) and the inner cylinder (21).

6. A tail-cord guide as claimed in any one of claims 1 to 3, wherein: the base (3) comprises two side plates (31), the two side plates (31) are vertically arranged in parallel, and the two side plates (31) are connected into a whole through a connecting rod (32); the tops of the two side plates (31) are both provided with a main shaft (1) hole for the main shaft (1) to pass through.

7. A tail-cord guide as claimed in claim 6, wherein: the main shaft (1) is welded and fixed with the rotating shaft hole.