Skip shaft guide lug copper bush protection device for mine skip shaft

Abstract

The utility model discloses a skip cage guide lug copper bush protection device for a mine skip vertical shaft. The skip cage guide lug copper bush protection device comprises a box body, a limiting baffle, a first bolt, a fixing sleeve, a second bolt and a filler block. By the adoption of the box-packed filler block structural design, the filler block is tightly attached to the steel wire rope, the filler block is abraded by the steel wire rope, a skip cage guide lug copper sleeve is protected to a certain extent, the service life of the copper sleeve is greatly prolonged, the shutdown overhaul frequency is reduced, the protection device is easy to install, and the original structure of the steel wire rope cannot be changed; the device is simple in structure, and the filler blocks are very convenient to adjust and replace; abrasion to the steel wire rope caused by the copper sleeve is larger than abrasion to the stable rope caused by the filler block, and abrasion to the steel wire rope can be reduced after the device is protected by the filler block.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine skip shafts, and in particular relates to a skip pot lug copper sleeve protection device for mine skip shafts. Background Art

[0002] The skip shaft is a common facility for mine hoisting operations. It mainly relies on wire rope traction. It is usually equipped with a tail rope and a tank rope (stabilizing rope) to enhance stability. In order to prevent the stabilizing rope from directly wearing the skip stabilizing ears, a copper sleeve is installed in the stabilizing ears. Due to different wear conditions of the copper sleeve, the replacement time is different. When replacing the copper sleeve, the skip needs to be stopped at the wellhead position, and then the closed cover is opened, and personnel enter the closed cover to work. According to the classification of dangerous operations, replacing the copper sleeve belongs to the first-level dangerous operation, and the safety risk is relatively high. Taking a copper mine section in Yunnan as an example, it is necessary to apply for two shutdowns per month to replace the copper sleeves. Each shutdown time is about 4 hours. The material cost required for the replacement of the copper sleeves alone is close to 170,000 yuan / year, and the shutdown will also affect normal production operations. It is very necessary to develop a skip tank ear copper sleeve protection device that can extend the service life of the copper sleeve and reduce the maintenance frequency of the copper sleeve. Utility Model Content

[0003] The utility model aims to provide a copper sleeve protection device for a skip bucket lug of a mine skip shaft.

[0004] The purpose of the utility model is achieved in this way, including a box body, a limit baffle, a first bolt, a fixing sleeve, a second bolt, and a liner. The box body is a square box with open top and bottom, and the limit baffle is an L-shaped plate. The four corners of the box body are respectively covered with a limit baffle, and one side of the limit baffle is detachably connected to the side of the box body by a first bolt, and the other side blocks the top and bottom openings of the box body, and there is a gap between the left and right adjacent limit baffles for the wire rope to pass through, and a fixing sleeve is fixedly provided with a hole on the side of the box body between the upper and lower adjacent limit baffles, and a nut is fixedly provided on the fixing sleeve, and the second bolt passes through the nut and the fixing sleeve and enters the box body, and the box body includes two liner blocks, and a channel for the wire rope to pass through is provided between the two liner blocks, and the channel corresponds to the gap. The upper and lower ends of the liner block are blocked by the corresponding limit baffles, and the end of the second bolt faces the liner block.

[0005] For the detachable bolt connection between the side of the box and one side of the limit baffle, the first bolt can be welded to the side of the box. The limit baffle is provided with a hole. During installation, the first bolt is passed through the hole of the limit baffle and then fixed with a nut to achieve the fixation of the side of the box and the limit baffle.

[0006] Preferably, the box body includes a panel and two side panels, and the side panels are respectively arranged on both sides of the panel; the material can be iron, and the panel and the side panels can be integrally formed to form the box body, or can be welded together.

[0007] The liner can be a friction pad well known to technicians in this field, or a drum friction pad replaced by a multi-rope friction hoist can be selected. This is a recycling of waste items and does not incur any cost. The shape of the liner can be square or wedge-shaped, as long as it can be loaded into the box, and the contact part between the liner and the wire rope, and the contact part between the liner and the second bolt will not be displaced due to the wear of the wire rope.

[0008] Preferably, an observation port is provided on the front side of the box body; the observation port can be set at a position where the lining block can be seen, and the lining block can be observed through the observation port to facilitate judgment of the wear condition of the lining block.

[0009] Preferably, the box body is welded on the bucket, and the wire rope passes through the gap and channel; it is also possible to first weld a pad on the bucket, and then weld the box body on the pad, which is flexibly determined according to the on-site conditions of the bucket.

[0010] Preferably, a limit baffle is fixed by at least two first bolts to enhance stability.

[0011] Preferably, the thickness of the lining block is 1.05 times the diameter of the steel wire rope.

[0012] The beneficial effects of the utility model are as follows: the utility model adopts a box-mounted liner block structure design, so that the liner block is close to the wire rope. The wire rope wears the liner block, which protects the copper sleeve of the bucket duct ear to a certain extent, thereby greatly extending the service life of the copper sleeve and reducing the frequency of shutdowns and maintenance. In addition, the protection device is easy to install and will not change the original structure of the wire rope. The utility model has a simple structure, and the liner block adjustment and replacement are very convenient. The adjustment of the liner block can be completed by screwing the corresponding bolts, which is very fast. The wear of the copper sleeve on the wire rope is greater than the wear of the liner block on the stabilizing rope. After the device is protected by the liner block, the wear of the wire rope can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 It is a right view structural schematic diagram of the utility model;

[0015] Figure 3 for Figure 1 Schematic diagram of the internal structure of the middle box;

[0016] In the figure: 1-box, 2-limit baffle, 3-first bolt, 4-fixing sleeve, 5-second bolt, 6-lining block, 7-gap, 8-nut, 9-channel, 10-observation port. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited in any way. Any changes or substitutions made based on the teachings of the present invention belong to the protection scope of the present invention.

[0018] Example 1

[0019] As attached Figure 1~Figure 3 The embodiment shown is used for the copper sleeve protection device of the bucket bucket ear of the mine bucket shaft, including a box body 1, a limit baffle 2, a first bolt 3, a fixing sleeve 4, a second bolt 5, and a liner 6. The box body 1 is a square box with an open top and a bottom. The limit baffle 2 is an L-shaped plate. The four corners of the box body 1 are respectively provided with a limit baffle 2, and one side of the limit baffle 2 is detachably connected to the side of the box body 1 through the first bolt 3, and the other side blocks the top and bottom openings of the box body 1, and there is a gap 7 for the wire rope to pass between the two adjacent limit baffles 2 on the left and right, and there is a gap 7 between the two adjacent limit baffles 2 on the upper and lower sides. A fixing sleeve 4 is fixedly provided on the side hole of the box body 1, and a nut 8 is fixedly provided on the fixing sleeve 4. The second bolt 5 passes through the nut 8 and the fixing sleeve 4 and enters the box body 1. The box body 1 includes two lining blocks 6, and a channel 9 for the wire rope to pass between the two lining blocks 6. The channel 9 corresponds to the gap 7. The upper and lower ends of the lining blocks 6 are blocked by the corresponding limit baffles 2, and the end of the second bolt 5 faces the lining blocks 6; the box body 1 is welded on the bucket, and the wire rope passes through the gap 7 and the channel 9; a limit baffle 2 is fixed by two first bolts 3; wherein, the second bolt 5 uses an M18 bolt;

[0020] The skip shaft in the western section of a copper mine in Yunnan uses a well tower double skip hoisting system, which is pulled by 6 head ropes, balanced by 4 tail ropes, and fixed by 8 tank ropes (stabilizing ropes). The main and auxiliary skips lift ore back and forth in a shaft 959m deep; the maximum lifting speed of the skip is 12.7m / s, and the system lifting capacity is 7000t / d; the lifting container uses 2 15m3 bottom-discharging skips, each of which has 4 stabilizing ropes on both sides, and stabilizing ears and matching copper sleeves are installed at the contact points between the stabilizing ropes and the skip; currently, it is necessary to apply for 2 shutdowns per month to replace the copper sleeves, and each shutdown time is about 4 hours; after the protection device of this embodiment is applied to the stabilizing rope, the service life of the copper sleeve is extended by 2 months, and the maintenance time is reduced to once a month.

[0021] Example 2

[0022] The copper sleeve protection device for the bucket hopper ear of the mine bucket shaft in this embodiment is based on the embodiment 1, and the front of the box body 1 is provided with an observation port 10; the thickness of the lining block 6 is 1.05 times the diameter of the wire rope.

[0023] The working principle and working process of the utility model are as follows: the device is installed on the bucket, and the device is located above or below the tank channel ear to ensure that the wire rope passes through the gap 7 and the channel 9; the second bolt 5 is screwed, the lining block 6 is pushed, and the distance between the lining block 6 and the wire rope is adjusted to make the lining block 6 close to the wire rope, and the gap between the wire rope and the lining block 6 in the protective device is ensured to be smaller than the gap between the wire rope and the copper sleeve; during operation, the wire rope first wears the lining block 6, and only after the lining block 6 is worn will the copper sleeve be worn; the gap between the wire rope and the lining block 6 After the enlargement, the lining block 6 is pressed against the wire rope by screwing the second bolt 5 to reduce the gap between the two; this can greatly extend the life of the copper sleeve and reduce the maintenance frequency of the copper sleeve; the limit baffle 2 is used to limit the top and bottom of the lining block 6 to prevent the lining block 6 from moving along the direction of the wire rope; when the lining block 6 needs to be replaced, the limit baffle 2 is removed, the old lining block 6 is taken out, the second bolt 5 is adjusted to the starting position, the new lining block 6 is inserted, the limit baffle 2 is reinstalled, the first bolt 3 is adjusted, and the lining block 6 is close to the wire rope.

Claims

1. A copper sleeve protective device for a bucket bucket ear of a mine bucket shaft, comprising a housing (1), a limit baffle (2), a first bolt (3), a fixing sleeve (4), a second bolt (5), and a liner (6), characterized in that The box body (1) is a square box with an open top and bottom. The limit baffle (2) is an L-shaped plate. The four corners of the box body (1) are respectively provided with a limit baffle (2). One side of the limit baffle (2) is detachably connected to the side of the box body (1) by a first bolt (3). The other side blocks the top and bottom openings of the box body (1). There is a gap (7) between two adjacent limit baffles (2) on the left and right for the wire rope to pass through. The box body (1) between the two adjacent limit baffles (2) on the upper and lower sides is provided with a gap (7) for the wire rope to pass through. A fixing sleeve (4) is fixedly provided in the side hole, a nut (8) is fixedly provided on the fixing sleeve (4), the second bolt (5) passes through the nut (8) and the fixing sleeve (4), and enters the box body (1), wherein two lining blocks (6) are provided in the box body (1), a passage (9) for a steel wire rope to pass through is provided between the two lining blocks (6), the passage (9) corresponds to the gap (7), the upper and lower ends of the lining blocks (6) are blocked by corresponding limit baffles (2), and the end of the second bolt (5) faces the lining blocks (6).

2. The copper sleeve protection device for the bucket hopper ear of a mine bucket shaft according to claim 1 is characterized in that The box body (1) comprises a panel and two side panels, wherein the side panels are respectively arranged on both sides of the panel.

3. The copper sleeve protection device for the bucket hopper ear of a mine bucket shaft according to claim 1 is characterized in that The box body (1) is provided with an observation port (10) on the front side.

4. The copper sleeve protection device for the bucket hopper ear of a mine bucket shaft according to claim 1 is characterized in that The box body (1) is welded to the bucket, and the steel wire rope passes through the gap (7) and the channel (9).

5. The copper sleeve protection device for the bucket hopper ear of a mine bucket shaft according to claim 1 is characterized in that A limit baffle (2) is fixed by at least two first bolts (3).

6. The copper sleeve protection device for the bucket hopper ear of a mine bucket shaft according to claim 1 is characterized in that The thickness of the lining block (6) is 1.05 times the diameter of the steel wire rope.

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