CN218637514U

CN218637514U - Sealing structure for end cover bushing of ball mill

Info

Publication number: CN218637514U
Application number: CN202222429950.9U
Authority: CN
Inventors: 冯云贵; 王彬; 陈科帆
Original assignee: Fujian Makeng Mining Co ltd
Current assignee: Fujian Makeng Mining Co ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-03-17
Anticipated expiration: 2032-09-14

Abstract

The utility model provides a ball mill end cover bush seal structure, includes end cover 2, bush 1, 1 barrel of bush nestification in 2 barrels of end cover, both pass through the bolt fastening, flange on 1 left side of bush and 2 barrel apical orifices contact surfaces on the left of the end cover have the bolt fastening, and the wear ring on 1 barrel right side of bush and end cover barrel right-hand member contact surface are nested end, and nested end is equipped with magnetism and inhales seal structure. The magnetic attraction sealing structure comprises a groove structure 101, an auxiliary dismounting device 102 and a magnet 103 ring on the outer peripheral surface of the tail end of the bushing 1, the magnet 103 ring is surrounded by a plurality of magnets 103 with uniform specifications to form a ring which is tightly and tidily arranged in the groove structure 101, and a layer of auxiliary dismounting device 102 is laid between the groove structure 101 and the magnet 103 ring. The utility model discloses make full use of magnetism is inhaled the attribute, and in ball mill work simultaneously, powdered ore and iron fillings can be adsorbed fast in its surface and gap by magnet, when accomplishing sealedly, form the protective layer between the cooperation structure, avoid corroding or strike the destruction that causes.

Description

Sealing structure for end cover bushing of ball mill

Technical Field

The utility model relates to a ball mill end cover bush seal structure.

Background

The ball mill is traditional crushing and grinding device, the cylinder structure is adopted in the assembly of ball mill business turn over material bush and front and back end cover, the bush transversely inlays inside the end cover, usually through the bolt fastening, because the structural design problem, the unable totally enclosed gomphosis end cover of bush, there is certain gap between the two, in-service thick liquid or slay can enter into the assembly cavity of business turn over material bush and front and back end cover body through inboard fitting gap, cause wearing and tearing to business turn over material bush and end cover body, shorten the life of bush, reduce the intensity of end cover body, seriously still can produce the crackle, the condition such as hole, and cause the end cover body to grind hourglass, the thick liquid enters into big tile face, cause the risk of tile firing accident, thick liquid spills over along the outer end assembly face simultaneously, the hourglass thick liquid appears. The leaking slurry causes a number of problems.

A common sealing structure between a bushing and an end cover of a feeding end cover and a discharging end cover of a ball mill is characterized in that an O-shaped ring, a rubber pipe or a packing is adopted at the matching end part of the feeding end cover and the discharging end cover to be fastened and sealed through a pressurizing plate, and an inner cavity is sealed by pouring concrete. In the sealing mode, under the action of pulp and steel ball flushing in the operation process of the ball mill, the steel pressing plate and the sealing filler are easily worn, so that the hollow shaft of the bushing and the end cover is worn due to sealing failure. And because the cavity is poured with concrete, the bushing must be disassembled when the bushing is overhauled and replaced, the concrete is hollowed out, and the old bushing can be detached, so that the overhauling workload is large.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned problem, provide a ball mill end cover bush seal structure.

A sealing structure of an end cover bushing of a ball mill: the magnetic suction type bushing is characterized by comprising an end cover and a bushing, wherein a bushing cylinder is nested in the end cover cylinder, and a magnetic suction sealing structure is arranged at the tail end of the nesting.

Further, the magnetic attraction sealing structure is a circle of groove on the outer peripheral surface of the tail end of the end cover cylinder, a magnetic attraction device is installed in the groove, and an auxiliary dismounting device is laid between the magnetic attraction device and the groove surface.

Further, the magnetic attraction device is composed of a plurality of magnets with uniform specifications, the magnets are neatly and tightly arranged in the grooves at the tail ends of the end cover cylinder bodies, and after the magnetic attraction device is arranged, the magnets do not protrude out of the grooves at the tail ends of the lining cylinder bodies.

Further, the auxiliary dismounting device is a belt or a cloth belt or a plastic belt or a metal belt, the width of the auxiliary dismounting device is equal to the width of the groove of the end cover cylinder, the length of the auxiliary dismounting device is larger than the diameter of the end cover cylinder, and the auxiliary dismounting device is connected with the head and the tail and extends out of the magnetic suction device.

Further, the magnetic attraction sealing structure is a circle of grooves in the inner peripheral surface of the tail end of the bushing cylinder, the magnetic attraction device is installed in the grooves, the auxiliary dismounting device is paved between the magnetic attraction device and the groove surface, and the dismounting of the magnetic attraction device can be completed quickly by the auxiliary dismounting device.

Further, the magnetic attraction device is composed of a plurality of magnets with uniform specifications, the magnets are neatly and tightly arranged in the tail end groove of the lining cylinder, and after the magnets are installed, the magnets do not protrude out of the tail end groove of the lining cylinder.

Further, the auxiliary dismounting device is a belt or a cloth belt or a plastic belt or a metal belt, the width of the auxiliary dismounting device is equal to the width of the groove of the lining cylinder, the length of the auxiliary dismounting device is larger than the diameter of the lining cylinder, and the auxiliary dismounting device is connected with the head and the tail of the auxiliary dismounting device and extends out of the magnetic suction device.

Adopt the utility model discloses a seal structure, make full use of magnetism is inhaled the attribute, and in ball mill work simultaneously, powdered ore and iron fillings can be adsorbed by magnet fast in its surface and gap, when accomplishing sealedly, form the protective layer between cooperation structure, avoid corroding or strike the destruction that causes.

Drawings

FIG. 1: embodiment one the utility model discloses a perspective view of bush.

FIG. 2: example one the present invention bushing is exploded.

FIG. 3: embodiment one the utility model discloses the schematic structure of bush, connection position enlargedly.

FIG. 4: embodiment one the utility model discloses a cross-sectional view.

FIG. 5: second embodiment the utility model discloses a perspective view of end cover.

FIG. 6: example two the present invention discloses an exploded view of an end cap.

FIG. 7: second embodiment the utility model discloses the schematic structure of end cover, connection position enlargements.

FIG. 8: second embodiment the utility model discloses a cross-sectional view.

The labels shown in the figures:

1. a bushing; 101. a groove structure; 102. auxiliary dismounting devices (belts); 103. a magnet; 104. a metal ring; 2. an end cap; 201. a groove structure; 202. auxiliary dismounting devices (belts); 203. a magnet; 204. a metal ring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The first embodiment is as follows:

as shown in fig. 1-4, the sealing structure for the end cover bushing of the ball mill shown in this embodiment includes an end cover 2 and a bushing 1, the bushing 1 is nested in the end cover 2, and the two are fixed by bolts, as shown in fig. 4, the flange on the left of the bushing 1 and the contact surface of the top opening of the circular ring on the left of the end cover 2 are fixed by bolts, the wear-resistant ring on the right of the bushing 1 and the contact surface of the right of the end cover barrel are nested ends, and the nested ends are provided with magnetic attraction sealing structures.

Further, the magnetic attraction sealing structure comprises a groove structure 101 on the outer peripheral surface of the tail end of the bushing 1, an auxiliary dismounting device 102 and a magnet 103 ring, wherein the magnet 103 ring is surrounded by a plurality of magnets 103 with uniform specifications to form a ring which is tightly and neatly arranged in the groove structure 101, and a layer of auxiliary dismounting device 102 is laid between the groove structure 101 and the magnet 103 ring.

The utility model relates to a set up the groove structure 101 of suitable size to the terminal outer peripheral face of bush 1 in advance, in neatly closely installing into groove structure 101 with magnet 103 again. The novel grinding machine is characterized in that in the operation process of the grinding machine, mineral powder and iron filings are quickly adsorbed on the surface and in gaps of the surface by the magnet 103 to complete sealing. Due to the action of the magnet 103, the surfaces of the hollow shafts of the bushing 1 and the end cover 2 adsorb a layer of mineral powder or scrap iron, so that the erosion of the mineral slurry and the mineral slag is slowed down, the mutual abrasion between the bushing 1 and the end cover 2 is reduced, and the service lives of the bushing 1 and the end cover 2 are prolonged.

Due to the magnetic attraction property, the sealing condition does not need to be particularly strict, the use of the bushing 1 and the end cover 2 is not influenced within a certain abrasion degree, and the use efficiency and the service life of the bushing 1 and the end cover 2 are greatly improved.

Further description is as follows: the auxiliary detaching device 102 is a belt or a cloth belt or a plastic belt or a metal belt, but is not limited to the above-mentioned materials, and the auxiliary detaching device may be a material having a strong structure and sufficient toughness, which will be described in detail below by taking the belt 102 as an example.

Further, the groove structure 101 can effectively strengthen the magnet 103, and avoid the dislocation and offset of the magnet 103 when the bushing 1 is installed and the ball mill is operated.

Further, after the sealing structure is installed, the thickness of the magnet 103 and the thickness of the belt 102 do not exceed the height of the groove structure 101, and the thicknesses of the magnet 103 and the belt 102 are kept at the same level to be optimal, so that the sealing performance is ensured, and meanwhile, the abrasion of the bushing 1 and the end cover 2 during installation is avoided.

Further, the belt 102 and the groove structure 101 are equal in width, the length of the belt 102 is larger than the diameter of the opening of the bushing, the belt 102 and the groove structure 101 are enclosed into a circle and are closely attached to be laid at the bottom of the groove structure 101, the magnet 103 is sequentially laid on the belt 102, gaps can be effectively reduced, a part of the belt 102 extending from the head end and the tail end of the belt is arranged outside the magnet 103, a circular pull hole is formed in the belt 102, a metal ring 104 is arranged on the pull hole, the magnet 103 can be easily separated through a pull ring when the whole belt is disassembled and cleaned, the metal rings 104 at the two ends can be effectively adsorbed on the magnet 103, the joint deviation and pulling of the bushing 1 during installation and the operation of the ball mill are avoided, in order to ensure the structural sealing performance and stability, grooves with the same shape as the extending structure at the two ends of the belt 102 are arranged on the adsorption surfaces of the magnet 103 adsorbed at the two ends of the belt 102, the belt 102 can be attached more, and the belt 102 is prevented from protruding out of the groove structure.

Further explain, among the conventional industry, in order to solve end cover 2 and bush 1's sealed, need toward the cavity pouring concrete or other materials between end cover 2 and the bush 1, the utility model discloses save these loaded down with trivial details steps, can wholly extract when overhauing changing bush 1, reduced and overhauld difficult way and work load, and the utility model relates to a, processing is ingenious, and is practical, does not occupy the ball mill volume, does not change ball mill overall structure.

Use bush 1 of this embodiment can adapt to many money ball mill end cover 2, and the practicality is strong, and the leakproofness is good, can effectively deal with multiple emergency situation.

Example two:

the structural attributes of this embodiment are substantially the same as those of the first embodiment, except that the magnetic attraction sealing structure is designed at the end of the end cap 2, not at the end of the bushing 1.

As shown in fig. 5 to 8, the sealing structure for the end cover and the bushing of the ball mill shown in this embodiment includes an end cover 2 and a bushing 1, wherein a cylinder of the bushing 1 is nested in a cylinder of the end cover 2, and a magnetic attraction sealing structure is arranged at the end of the nested cylinder.

Further, the magnetic attraction sealing structure comprises a groove structure 201, an auxiliary dismounting device 202 and a magnet 203 ring, wherein the groove structure 201, the auxiliary dismounting device 202 and the magnet 203 ring are arranged on the inner circumferential surface of the tail end of the end cover 2, the magnet 203 ring is surrounded by a plurality of magnets 203 with uniform specifications to form a ring which is tightly and neatly arranged in the groove structure 201, and a layer of auxiliary dismounting device 202 is laid between the groove structure 201 and the magnet 203 ring.

The using function of the ball mill is basically the same as that of the first embodiment, and meanwhile, the magnetic attraction property is utilized, so that when the ball mill works, metal such as mineral powder and iron chips is adsorbed to form a sealing film to complete sealing.

The difference between the first embodiment and the second embodiment is that the bushing 1 is a vulnerable part in a ball mill part, the replacement frequency is far greater than that of the end cover 2, and the magnetic attraction sealing structure is designed on the end cover 2 in the first embodiment, so that the cost expenditure of the bushing 1 and the waste of materials can be saved.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited by the above embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should fall within the protection scope of the present invention.

Claims

1. A sealing structure of an end cover bushing of a ball mill: the magnetic suction type bushing is characterized by comprising an end cover and a bushing, wherein a bushing cylinder is nested in the end cover cylinder, and the tail end of the nesting is provided with a magnetic suction sealing structure.

2. The ball mill end cap bushing seal structure of claim 1, characterized in that: the magnetic attraction sealing structure is a circle of groove on the outer peripheral surface of the tail end of the bushing cylinder, a magnetic attraction device is installed in the groove, and an auxiliary dismounting device is laid between the magnetic attraction device and the groove surface.

3. A ball mill end cap bushing sealing structure according to claim 2, characterized in that: the magnetic attraction device is composed of a plurality of magnets with uniform specifications, the magnets are neatly and tightly arranged in the grooves at the tail ends of the lining cylinder bodies, and the magnets do not protrude out of the grooves at the tail ends of the lining cylinder bodies after the magnets are arranged.

4. The ball mill end cap bushing seal structure of claim 2, characterized in that: the auxiliary dismounting device is a belt or a cloth belt or a plastic belt or a metal belt, the width of the auxiliary dismounting device is equal to the width of the groove of the lining cylinder, the length of the auxiliary dismounting device is greater than the diameter of the lining cylinder, and the auxiliary dismounting device is connected end to end and extends out of the magnetic suction device.

5. The ball mill end cap bushing seal structure of claim 1, characterized in that: the magnetic attraction sealing structure is a circle of groove on the inner peripheral surface of the tail end of the end cover cylinder, a magnetic attraction device is installed in the groove, and an auxiliary dismounting device is laid between the magnetic attraction device and the groove surface.

6. A ball mill end cover bushing sealing structure according to claim 5, characterized in that: the magnetic attraction device is composed of a plurality of magnets with uniform specifications, the magnets are neatly and tightly arranged in the grooves at the tail ends of the end cover cylinder bodies, and the magnets do not protrude out of the grooves at the tail ends of the end cover cylinder bodies after the magnets are arranged.

7. The ball mill end cap bushing seal structure of claim 5, characterized in that: the auxiliary dismounting device is a belt or a cloth belt or a plastic belt or a metal belt, the width of the auxiliary dismounting device is equal to the width of the groove of the end cover cylinder, the length of the auxiliary dismounting device is larger than the diameter of the end cover cylinder, and the auxiliary dismounting device is connected end to end and extends out of the magnetic suction device.