Grinding roller supporting structure for coal mill

Abstract

The utility model relates to the technical field of coal mills, and discloses a grinding roller supporting structure for a coal mill, which comprises a supporting frame, hydraulic cylinders are fixedly mounted on two sides of the supporting frame, a supporting plate is mounted at the output end of each hydraulic cylinder, a fixing strip is welded at the lower end of an inner cavity of the supporting frame, and a sliding groove is formed in the upper end of the fixing strip. Wedge-shaped frames are arranged on the two sides of an inner cavity of the supporting frame, and sliding blocks are welded to the lower ends of the wedge-shaped frames. According to the technical scheme, the supporting plate can support the lower portion of the grinding roller so that the grinding roller can be disassembled conveniently, and in the downward moving process of the supporting plate, the supporting plate can drag the traction rope, the traction rope drives the smooth plate to move upwards, the smooth plate pushes the wedge-shaped frames so that the two wedge-shaped frames can move outwards, and therefore the grinding roller can be disassembled conveniently. Meanwhile, a spring is stretched, so that a limiting plate on a wedge-shaped frame abuts against the inner side wall of the grinding roller, the position of the grinding roller is limited, and a worker can conveniently maintain the grinding roller.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mill technical field, concretely is a kind of mill roller support structure for coal mill. BACKGROUND

[0002] Coal mill is the mechanical that coal block is broken and is ground into coal powder, is the important auxiliary equipment of coal powder furnace.Medium-speed coal mill mainly includes millstone and mill roller, coal block is placed on millstone, by rotating millstone, coal block is crushed and ground by being extruded and ground between millstone and mill roller.In the equipment overhaul of medium-speed coal mill, mill roller and other accessories need to be disassembled and replaced.

[0003] Through the retrieval disclosure number (CN222093524U), a kind of mill roller support structure for coal mill is disclosed, the mill roller support structure includes first support cover, second support cover, connecting piece, first support flange and second support flange;The first support cover and the second support cover are arranged along upper and lower direction and can be mutually closed, to enclose the passage for the drive rod of mill roller, and the first support cover and the second support cover can be detachably connected by the connecting piece;The first support flange is arranged in the upper end of the first support cover along horizontal direction, and the second support flange is arranged in the upper end of the second support cover along horizontal direction.

[0004] In the implementation of the technical scheme, at least the following defects still exist: although the utility model can disassemble and support mill roller, it is inconvenient to limit the position of the mill roller placed and supported when maintaining the mill roller, which affects the maintenance operation of the mill roller by workers, and improvement is needed.Therefore, we propose a kind of mill roller support structure for coal mill. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of mill roller support structure for coal mill, solve the problem proposed in background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of mill roller support structure for coal mill, including support frame, the both sides of the support frame are fixedly installed with hydraulic cylinder, the output end of the hydraulic cylinder is installed with support plate, the inner chamber lower end of the support frame is welded with fixed strip, the upper end of the fixed strip is equipped with sliding slot, the both sides of the inner chamber of the support frame are provided with wedge-shaped frame, the lower end of the wedge-shaped frame is welded with sliding block, the middle part of the inner chamber of the support frame is provided with smooth plate, the upper end of the smooth plate is fixedly connected with traction rope, the outer side of the upper end of the wedge-shaped frame is fixedly installed with limit board and is penetrated through support frame.

[0007] By adopting the technical scheme, the support plate can support the lower part of the grinding roller, facilitating dismounting operation of the grinding roller, and during the moving down of the support plate, the support plate can pull the traction rope, the traction rope drives the smooth plate to move upwards, the smooth plate pushes the wedge-shaped frame, the two wedge-shaped frames move outward, the spring is stretched, the limiting plate on the wedge-shaped frame abuts against the inner side wall of the grinding roller, and the grinding roller is position-limited, thereby facilitating maintenance operation of the grinding roller by the staff.

[0008] Optionally, a plurality of rolling balls are fixedly installed on the inner side of the support plate, the rolling balls are equidistantly distributed, and the rolling balls are attached to the outer side wall of the support plate.

[0009] By adopting the technical scheme, the smooth up-down movement of the support plate on the outer side of the support frame is ensured by the rolling balls.

[0010] Optionally, the size of the sliding block is matched with the size of the sliding groove, and the sliding block is in sliding connection with the sliding groove.

[0011] By adopting the technical scheme, the stability of the movement of the wedge-shaped frame is ensured by the cooperation of the sliding block and the sliding groove.

[0012] Optionally, a spring is fixedly installed in the inner cavity of the sliding groove, and the other end of the spring is fixedly connected with the sliding block.

[0013] By adopting the technical scheme, the wedge-shaped frame is reset by the spring, thereby facilitating removal of the maintained grinding roller.

[0014] Optionally, the wedge-shaped frames are symmetrically arranged, and the inner sides of the wedge-shaped frames are attached to the smooth plate.

[0015] By adopting the technical scheme, the wedge-shaped frame is pushed by the smooth plate.

[0016] Optionally, the other end of the traction rope is fixedly connected with the upper end of the support plate through the guide wheel.

[0017] By adopting the technical scheme, the smooth plate is pulled by the traction rope.

[0018] Compared with the prior art, the technical scheme has the following beneficial effects:

[0019] The technical scheme of the present application is provided with a support frame, a support plate, a ball, a wedge-shaped frame, a smooth plate, a traction rope and a limiting plate, which can support the lower part of the grinding roller through the support plate, facilitate the disassembly operation of the grinding roller, and can pull the traction rope through the support plate during the downward movement of the support plate, drive the smooth plate to move upward, push the wedge-shaped frame through the smooth plate, move the two wedge-shaped frames outward and stretch the spring, so that the limiting plate on the wedge-shaped frame abuts against the inner side wall of the grinding roller, thereby limiting the position of the grinding roller and facilitating the maintenance operation of the grinding roller by the staff. BRIEF DESCRIPTION OF DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, made with reference to the accompanying drawings:

[0021] Fig. 1 It is a perspective structure schematic view of the grinding roller support structure for the coal mill of the present application;

[0022] Fig. 2 It is a front view schematic view of the grinding roller support structure for the coal mill of the present application;

[0023] Fig. 3 It is a schematic view of the local enlarged structure at A of the grinding roller support structure for the coal mill of the present application.

[0024] In the figure: 1, support frame; 11, hydraulic cylinder; 12, support plate; 13, ball; 2, fixed bar; 21, sliding groove; 22, wedge-shaped frame; 23, sliding block; 24, spring; 3, smooth plate; 4, traction rope; 5, limiting plate. DETAILED DESCRIPTION

[0025] Please refer to Figs. 1-3The utility model provides a technical scheme: a grinding roller support structure for coal mill, including support frame 1, both sides of support frame 1 are fixedly installed with hydraulic cylinder 11, the output of hydraulic cylinder 11 is installed with support plate 12, the lower end of the inner chamber of support frame 1 is welded with fixed strip 2, the upper end of fixed strip 2 is provided with sliding slot 21, both sides of the inner chamber of support frame 1 are provided with wedge frame 22, the lower end of wedge frame 22 is welded with sliding block 23, the middle part of the inner chamber of support frame 1 is provided with smooth plate 3, the upper end of smooth plate 3 is fixedly connected with tow rope 4, the outside of the upper end of wedge frame 22 is fixedly installed with limiting plate 5 through support frame 1, the inner chamber of sliding slot 21 is fixedly installed with spring 24, the other end of spring 24 is fixedly connected with sliding block 23, through the setting of spring 24, to reset wedge frame 22 can be driven, and then the well-maintained grinding roller is conveniently removed, wedge frame 22 is symmetrically arranged, and the inner side of wedge frame 22 is attached to smooth plate 3, through the setting of smooth plate 3, wedge frame 22 can be pushed by smooth plate 3, the other end of tow rope 4 is fixedly connected with the upper end of support plate 12 through guide wheel, through the setting of tow rope 4, smooth plate 3 can be pulled.

[0026] The inner side of support plate 12 is fixedly installed with a plurality of ball bearings 13, the ball bearings 13 are equidistantly distributed, and the ball bearings 13 are attached to the outer side wall of support frame 1, through the setting of ball bearings 13, the smooth up-and-down movement of support plate 12 on the outer side of support frame 1 is ensured.

[0027] The size of sliding block 23 is adapted to the size of sliding slot 21, and the sliding block 23 is slidingly connected with the sliding slot 21, through the cooperation of sliding block 23 and sliding slot 21, the stability of wedge frame 22 movement is ensured.

[0028] When supporting, first open hydraulic cylinder 11, hydraulic cylinder 11 drives support plate 12 to move to the lower side of grinding roller, so that support plate 12 supports the lower side of grinding roller, and then the disassembly operation of grinding roller is facilitated, after disassembly is completed, hydraulic cylinder 11 is driven to move downwards, due to the weight of grinding roller, grinding roller will move downwards along with support plate 12, at the same time, in the process of moving downwards of support plate 12, support plate 12 will pull tow rope 4, tow rope 4 drives smooth plate 3 to move upwards, smooth plate 3 pushes wedge frame 22, so that two wedge frames 22 move to the outside, at the same time, spring 24 is stretched, and then limiting plate 5 on wedge frame 22 abuts against the inner side wall of grinding roller, so that the position of grinding roller is limited, thereby facilitating the maintenance operation of grinding roller by staff.

Claims

1. A roller support structure for a coal mill comprising a support frame (1) characterised in that: Both sides of the support frame (1) are fixedly installed with hydraulic cylinders (11), the output end of the hydraulic cylinder (11) is installed with a support plate (12), the lower end of the inner cavity of the support frame (1) is welded with a fixed strip (2), the upper end of the fixed strip (2) is provided with a sliding groove (21), both sides of the inner cavity of the support frame (1) are provided with wedge-shaped frames (22), the lower end of the wedge-shaped frame (22) is welded with a sliding block (23), the middle part of the inner cavity of the support frame (1) is provided with a smooth plate (3), the upper end of the smooth plate (3) is fixedly connected with a traction rope (4), the outer side of the upper end of the wedge-shaped frame (22) penetrates through the support frame (1) and is fixedly installed with a limiting plate (5).

2. A roller support structure for a coal mill as claimed in claim 1, wherein: The inner side of the support plate (12) is fixedly installed with a plurality of ball bearings (13), the ball bearings (13) are equidistantly distributed, and the ball bearings (13) are attached to the outer side wall of the support frame (1).

3. A roller support structure for a coal mill as claimed in claim 1, wherein: The size of the sliding block (23) is matched with the size of the sliding groove (21), and the sliding block (23) is slidably connected with the sliding groove (21).

4. A roller support structure for a coal pulverizer as recited in claim 1, wherein: The inner cavity of the sliding groove (21) is fixedly installed with a spring (24), and the other end of the spring (24) is fixedly connected with the sliding block (23).

5. A roller support structure for a coal pulverizer as recited in claim 1, wherein: The wedge-shaped frames (22) are symmetrically arranged, and the inner side of the wedge-shaped frame (22) is attached to the smooth plate (3).

6. A roller support structure for a coal pulverizer as recited in claim 1, wherein: The other end of the traction rope (4) is fixedly connected with the upper end of the support plate (12) through a guide wheel.

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