Polishing device for on-line surfacing repair of raw material grinding roller

Abstract

The utility model discloses a polishing device for on-line surfacing repair of a raw material grinding roller, which comprises a polishing motor and two semicircular polishing mechanisms, one ends of the two polishing mechanisms are hinged, and the two ends of the two polishing mechanisms are fixedly connected through a positioning insertion plate. The two semicircular grinding mechanisms enable the device to be conveniently opened and closed so as to clamp a grinding roller during online repair, and the flexibility and applicability of the grinding device are greatly improved; meanwhile, a semi-annular grinding support and an abrasive belt are arranged in the grinding mechanism, and a driving gear and a driven gear which are matched with the semi-annular grinding support and the abrasive belt ensure that the abrasive belt can be in uniform and stable contact with the surface of the grinding roller in the grinding process, so that the grinding efficiency and the grinding quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to surfacing processing equipment technical field especially relates to a kind of grinding device for raw material mill roller on-line surfacing repair. BACKGROUND

[0002] In industrial production, raw material mill roller as key component, its surface state has important influence to grinding efficiency and product quality. However, in the long-term use process, mill roller surface inevitably will appear wear and tear, crack and other problems, need to be repaired regularly.

[0003] Traditional repair method usually involves removing mill roller, not only cumbersome, time-consuming and laborious;When online repair, it is usually polished using handheld sander before and after surfacing, to remove dregs and slag, it is difficult to ensure the uniformity and precision of polishing surface in the polishing process, often only plane polishing, which does not match the cambered shape of mill roller, resulting in unsatisfactory polishing effect, not only affect the grinding performance of mill roller, but also speed up the damage of mill roller due to uneven polishing.

[0004] Therefore, it is necessary to provide a kind of grinding device for raw material mill roller on-line surfacing repair to solve the above problems. INVENTION CONTENTS

[0005] The utility model is to overcome the above technical insufficiency, provide a kind of grinding device for raw material mill roller on-line surfacing repair, solve the problem raised in background art.

[0006] To achieve the above technical purpose, the technical scheme of the utility model provides a kind of grinding device for raw material mill roller on-line surfacing repair, including: polishing motor and two half circle shaped polishing mechanism, two the polishing mechanism one end articulates, and the both ends of two polishing mechanism are fixedly connected by positioning insert plate;The polishing mechanism includes half circular ring-shaped shell, the polishing support of half circular ring-shaped shell is arranged in the shell, the side of polishing support is provided with gear ring, the inner side wall of shell is provided with driven gear meshing with gear ring, the output shaft of polishing motor is provided with driving gear, and the driving gear is meshed with two driven gears when two polishing mechanism is spliced, the sand belt is arranged in the polishing support, and the sand belt passes through the inner ring of shell.

[0007] Further, the polishing support includes two half circular ring-shaped support plates, the sand belt is arranged between two support plates, the inner arc surface of shell is provided with slide rail, the outer arc surface of support plate is provided with slide groove matched with slide rail, the side adjacent to shell of support plate is provided with roller, the outer cylindrical surface of roller protrudes from the inner ring surface of support plate, the inner ring surface of shell is provided with snap ring, and the outer ring surface of snap ring is tangent to roller.

[0008] Further, two symmetric damping wheels are arranged between the two support plates, the sand belt is arranged on the two damping wheels, a tensioning strip hole is arranged on the support plate, a pressing block, a shaft seat and a tensioning spring are arranged in the tensioning strip hole, the tensioning spring is arranged between the pressing block and the shaft seat, the axle of the damping wheel is arranged on the shaft seat, and the pressing block is arranged at one end of the tensioning strip hole adjacent to the center of the support plate.

[0009] Further, a positioning pin is arranged on the outer side wall of the shell, a clamping groove matched with the positioning pin is arranged on the positioning insert plate, and one end of the support plate of the two polishing mechanisms is hinged.

[0010] Further, an arc-shaped groove is arranged at one end of the shell, and the two arc-shaped grooves form a through hole matched with the driving gear when the two polishing mechanisms are spliced.

[0011] Compared with the prior art, the polishing device has the beneficial effects that:

[0012] 1. The polishing device is designed in a half-circular shape, so that the device can be conveniently opened and closed to clamp the grinding roller during online repair, and the flexibility and applicability of the polishing device are greatly improved. Meanwhile, the half-circular ring-shaped polishing support and the sand belt arranged in the polishing mechanism, and the driving gear and the driven gear matched therewith, ensure that the sand belt can uniformly and stably contact the surface of the grinding roller during polishing, thereby improving the polishing efficiency and the polishing quality.

[0013] 2. The sliding rail arranged on the shell and the sliding groove arranged on the support plate are matched with the roller and the clasp, so that the polishing support can smoothly rotate in the shell while being kept stable, the shaking and deviation during polishing are avoided, and the polishing precision and stability are improved; in addition, the cooperation of the positioning insert plate and the positioning pin and the tensioning effect of the tensioning spring on the sand belt further ensure the stability of the device and the tightness of the sand belt during polishing, so that the polishing effect is more uniform and consistent. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic view of a polishing device for online surfacing repair of a raw material grinding roller provided by the present application;

[0015] Figure 2 is a schematic view of the internal structure of a polishing device for online surfacing repair of a raw material grinding roller provided by the present application;

[0016] Figure 3 is a schematic view of a polishing mechanism for online surfacing repair of a raw material grinding roller provided by the present application. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will make further detailed description to the utility model in combination with the drawings and examples.

[0018] With reference to Figure 1 The utility model provides a kind of grinding device for green material grinding roller on-line surfacing repair, grinding motor 1 and two half circle grinding mechanism 2;Two grinding mechanism 2 one end is connected by hinged mode, and two grinding mechanism 2 are opened before grinding, clamped on grinding roller, then two ends of two grinding mechanism 2 are fixedly connected by positioning insert plate 3, ensure that grinding mechanism 2 can keep stable during grinding.

[0019] With reference to Figure 2 、 Figure 3 Each grinding mechanism 2 includes half circular ring shell 201, and the outer side wall of shell 201 is provided with positioning pin 215, and positioning insert plate 3 is provided with clamping groove 301 matched with positioning pin 215.When two grinding mechanism 2 are spliced, positioning pin 215 is inserted into clamping groove 301, ensure that two grinding mechanism 2 can be accurately positioned and connected together, not only fix two grinding mechanism 2, also ensure that grinding mechanism can keep stable during grinding;

[0020] Shell 201 is provided with two half circular ring support plates 202, and one end of the support plate 202 of two grinding mechanism 2 is hinged, so as to open or close grinding mechanism 2, and the two support plates 202 are connected by support column 203, the inner arc surface of shell 201 is provided with sliding rail 214, and the outer arc surface of support plate 202 is provided with sliding groove matched with sliding rail 214, so as to carry out smooth rotary motion of grinding support in shell 201;The side adjacent to shell 201 of support plate 202 is provided with roller 210, and the outer cylindrical surface of roller 210 protrudes from the inner ring surface of support plate 202, the inner ring surface of shell 201 is provided with snap ring 211, and the outer ring surface of snap ring 211 is tangent to roller 210, so as to limit support plate 202 in shell 201, when grinding mechanism 2 is clamped on grinding roller, the inner ring surface of snap ring 211 is in close contact with grinding roller and fixes the whole device on it, and support plate 202 can rotate freely in shell 201.

[0021] Two symmetrical damping wheels 204 are arranged between the two supporting plates 202, and sand belts 205 are arranged on the two damping wheels 204, the sand belts 205 pass through the inner ring of the shell 201, so that the sand belts 205 are in contact with the surface of the grinding roller 5 when the polishing mechanism 2 is fixed on the grinding roller, the supporting plate 202 is provided with a tensioning strip hole 206, a pressing block 207, a rotating shaft seat 208 and a tensioning spring 209 are arranged in the tensioning strip hole 206, the tensioning spring 209 is arranged between the pressing block 207 and the rotating shaft seat 208, the axle of the damping wheel 204 is arranged on the rotating shaft seat 208, the pressing block 207 is arranged at one end of the tensioning strip hole 206 adjacent to the center of the supporting plate 202, the tensioning spring 209 exerts pressure on the damping wheel 204 (and the sand belt 205) through the rotating shaft seat 208, so as to ensure that the sand belt always maintains appropriate tension and contact pressure with the grinding roller during polishing.

[0022] A tooth ring 213 is arranged on one side of the supporting plate 202, and a driven gear 212 engaged with the tooth ring 213 is arranged on the inner side wall of the shell 201, when the two polishing mechanisms 2 are combined, the driving gear 101 arranged on the output shaft of the polishing motor 1 is engaged with the two driven gears 212, so as to drive the supporting plate 202 to rotate in the shell 201, an arc-shaped groove 216 is further arranged at one end of the shell 201, when the two polishing mechanisms 2 are combined, the two arc-shaped grooves 216 form a through hole matched with the driving gear 101, so as to facilitate the connection between the polishing motor 1 and the polishing mechanism 2.

[0023] When the polishing mechanism 2 is combined on the grinding roller, the polishing motor 1 drives the supporting plate 202 (and the sand belt 205) to rotate through the engagement between the driving gear 101 and the driven gear 212, so as to polish the grinding roller, the damping wheel 204 not only supports the sand belt 205, but also slowly rotates under the friction force generated between the sand belt 205 and the grinding roller, and the damping effect of the damping wheel 204 can make the sand belt wear uniformly, thereby improving the overall service life.

[0024] The specific embodiments of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A grinding device for online surfacing repair of raw material grinding roller, comprising a grinding motor and two semi-circular grinding mechanisms, one end of the two grinding mechanisms being hinged, and two ends of the two grinding mechanisms being fixedly connected through a positioning insert plate; characterized in that: The polishing mechanism comprises a half-ring-shaped shell, a half-ring-shaped polishing support arranged in the shell, a gear ring arranged on one side of the polishing support, a driven gear arranged on the inner side wall of the shell and engaged with the gear ring, a driving gear arranged on the output shaft of the polishing motor, and two polishing mechanisms.

2. A grinding device for on-line build-up welding repair of raw meal grinding rollers according to claim 1, characterized in that: The polishing support comprises two half-ring-shaped support plates connected by a support column, the sand belt is arranged between the two support plates, a sliding rail is arranged on the inner arc surface of the shell, a sliding groove matched with the sliding rail is arranged on the outer arc surface of the support plate, a roller is arranged on the side adjacent to the shell of the support plate, the outer cylindrical surface of the roller protrudes from the inner ring surface of the support plate, a snap ring is arranged on the inner ring surface of the shell, and the outer ring surface of the snap ring is tangent to the roller.

3. A grinding device for on-line build-up welding repair of raw meal grinding rollers according to claim 2, characterized in that: Two symmetric damping wheels are arranged between the two support plates, the sand belt is arranged on the two damping wheels, a tensioning strip hole is arranged on the support plate, a pressing block, a shaft seat and a tensioning spring are arranged in the tensioning strip hole, the tensioning spring is arranged between the pressing block and the shaft seat, the axle of the damping wheel is arranged on the shaft seat, and the pressing block is arranged on the end of the tensioning strip hole adjacent to the center of the support plate.

4. A grinding device for on-line build-up welding repair of raw meal mill rollers according to claim 2 or 3, characterized in that: A positioning pin is arranged on the outer side wall of the shell, a clamping groove matched with the positioning pin is arranged on the positioning plug, and one end of the support plate of the two polishing mechanisms is hinged.

5. A grinding device for on-line build-up welding repair of raw meal grinding rollers according to claim 4, characterized in that: One end of the shell is provided with an arc-shaped groove, and two arc-shaped grooves form a through hole matched with the driving gear when the two polishing mechanisms are combined.

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