CN219336713U

CN219336713U - Raymond mill grinding roller maintenance device

Info

Publication number: CN219336713U
Application number: CN202320388517.7U
Authority: CN
Inventors: 曹学龙; 史兆盛; 胡存业; 谢明; 张树礼; 张庆国
Original assignee: Jinan Haichuan Investment Group Co ltd; Shandong Huirui Graphite Technology Co ltd; JINAN WANRUI CARBON CO Ltd
Current assignee: Jinan Haichuan Investment Group Co ltd; Shandong Huirui Graphite Technology Co ltd; JINAN WANRUI CARBON CO Ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-07-14
Anticipated expiration: 2033-02-28

Abstract

The utility model discloses a maintenance device for a grinding roller of a Raymond mill, and mainly relates to the technical field of maintenance of the grinding roller of the Raymond mill. Including the maintenance support that is used for fixed grinding roller assembly, the grinding roller assembly includes the grinding roller, the interference is connected with the grinding roller axle in the grinding roller, be equipped with a plurality of mounts that contact with grinding roller one side on the maintenance support, be equipped with the U type groove that supplies the grinding roller axle to pass on the mount, U type inslot diameter is greater than grinding roller axle external diameter, is less than the grinding roller external diameter, be equipped with the spout along vertical symmetry on the mount, sliding connection has the apron that contacts with the grinding roller axle in the spout, vertical sliding connection has the movable support along one side of maintenance support, there is the ejector pin along the lateral sliding on the movable support, the ejector pin contacts with the tip of grinding roller axle. The utility model has the beneficial effects that: the method is used for simplifying the step of maintaining the grinding roller and improving the efficiency and safety of fixing and maintaining the grinding roller.

Description

Raymond mill grinding roller maintenance device

Technical Field

The utility model relates to the technical field of grinding rollers of Raymond mills, in particular to a maintenance device for the grinding rollers of the Raymond mill.

Background

The Raymond mill is widely applicable to high-fine powder milling processing of 280 various materials in industries such as non-inflammable and explosive minerals, chemical industry, buildings and the like with humidity below 6% and has the Mohs hardness of not more than 9.3 level, and mainly comprises a host, an analyzer, a fan, a finished cyclone separator, a micro powder cyclone separator and an air pipe, wherein the host consists of a frame, an air inlet volute, a shovel blade, a grinding roller assembly, a grinding ring and a housing. During operation, the materials to be crushed are fed into the machine from the feed hopper on the side surface of the casing, and revolve around the vertical axis by virtue of the grinding roller assembly hung on the plum blossom frame of the main machine, and simultaneously rotate, and the grinding roller swings outwards due to the action of centrifugal force during rotation and is tightly pressed on the grinding ring, so that the shovel blade scoops the materials between the grinding roller and the grinding ring, and the aim of crushing the materials is fulfilled due to rolling and rolling of the grinding roller.

The grinding roller and the grinding ring are gradually worn in the working process, the service cycle is generally 2-3 months, the Raymond mill is overhauled later, meanwhile, wearing parts such as a grinding ring shovel blade of the grinding roller are overhauled and replaced, the traditional mode of replacing the grinding roller is generally a manual maintenance mode, a movable clamping block is driven to slide by rotating a threaded rod, the grinding roller is fixed between the movable clamping block and a fixed clamping block, a front and back buckling lock nut used for fixing the grinding roller on the grinding roller shaft is detached, and a large hammer is used for knocking the grinding roller shaft, so that the grinding roller is detached.

However, because the grinding roller is tightly matched with the grinding roller shaft, and the experience and the physical strength of workers are very tested by knocking the grinding roller shaft by the large hammer, the manual maintenance mode is too long, the maintenance efficiency is low, the grinding roller is easy to knock and misplace to cause safety accidents in the continuous knocking process of the large hammer, in addition, the grinding roller is fixed by the clamping of the movable clamping block and the fixed clamping block, the threaded rod is easy to be worn and loosened after long-time use, and the safety accidents are not easy to be caused by the clamping of the grinding roller assembly effectively.

Disclosure of Invention

The utility model aims to provide a Raymond mill grinding roller maintenance device which is used for simplifying the step of maintaining the grinding roller and improving the efficiency and safety of fixing and maintaining the grinding roller.

The utility model aims to achieve the aim, and the utility model is realized by the following technical scheme:

the utility model provides a raymond mill grinding roller maintenance device, is including the maintenance support that is used for fixed grinding roller assembly, the grinding roller assembly includes the grinding roller, the interference is connected with the grinding roller axle in the grinding roller, be equipped with a plurality of mounts that contact with grinding roller one side on the maintenance support, be equipped with the U type groove that supplies the grinding roller axle to pass on the mount, U type inslot diameter is greater than grinding roller axle external diameter, is less than the grinding roller external diameter, be equipped with the spout along vertical symmetry on the mount, sliding connection has the apron that contacts with the grinding roller axle in the spout, one side of maintenance support has the movable support along vertical sliding connection, there is the ejector pin along the lateral sliding on the movable support, the ejector pin contacts with the tip of grinding roller axle.

The maintenance support is provided with a plurality of fixed grooves communicated with the sliding grooves, the cover plate is internally and symmetrically provided with fixed blocks along the transverse direction, and the fixed blocks are in plug-in fit with the fixed grooves.

The end of the fixed block is provided with an inclined plane which is contacted with the fixed groove, and a fixed spring is arranged between the fixed block and the cover plate.

The top of fixed block is equipped with the chute, along vertical sliding connection there being the drive block in the apron, the one end and the chute sliding contact of drive block, the other end extends to the apron outside, be equipped with reset spring between drive block and the apron.

The maintenance support is rotationally connected with a driven screw rod, the driven screw rod is in threaded connection with the movable support, and the maintenance support is rotationally connected with a driving screw rod meshed with the driven screw rod.

The movable support is provided with an oil cylinder, the driving end of the oil cylinder is connected with the ejector rod, one side of the maintenance support is provided with a rotating motor, and the sliding end of the rotating motor is connected with the driving screw rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. the grinding roller shaft is placed in the U-shaped groove of the fixing frame, the grinding roller assembly is driven to slide downwards to the center of the bottom of the U-shaped groove under the action of gravity of the grinding roller assembly, and one side of the grinding roller is contacted with the side face of one of the fixing frames, so that the grinding roller assembly is primarily fixed on the maintenance support, the operation of fixing the grinding roller assembly is simple and convenient, the efficiency of fixing the grinding roller assembly is further improved, in addition, due to the fact that the worn part of the fixing grinding roller assembly is the fixing frame, good fixing effect can be maintained after long-time use, and safety accidents caused by failure of the fixing effect after long-time use are prevented;

2. the sliding grooves are symmetrically arranged on the fixing frame along the vertical direction, and the cover plate slides in the sliding grooves and contacts with the grinding roller shaft to prevent the grinding roller shaft from being overturned by external force in the U-shaped groove, so that the grinding roller assembly is further fixed, the operation of fixing the grinding roller assembly is simple and convenient, and the efficiency of fixing the grinding roller assembly is improved;

3. through the one side at the maintenance support along vertical slip movable support, adjust the ejector pin position and make it aim at the different grinding roller axle of external diameter size, then follow the tip that transversely slide ejector pin and grinding roller axle contact, and apply external force to the grinding roller axle and promote the relative grinding roller motion of grinding roller axle, thereby make grinding roller axle and grinding roller drop, and then realize changing and maintenance to the grinding roller, and knock the mode of grinding roller axle for the big hammer, more firm and accurate through the mode of transversely sliding ejector pin and grinding roller axle contact, avoid not beating the grinding roller axle center and influence the efficiency of maintenance grinding roller, improved the efficiency to the grinding roller maintenance to a certain extent, also avoid beating dislocation and initiation incident simultaneously.

Drawings

Fig. 1 is a front view of the present utility model.

Fig. 2 is a schematic view of the internal structure of the present utility model.

FIG. 3 is a cross-sectional view taken along the direction A-A of FIG. 1 in accordance with the present utility model.

Fig. 4 is an enlarged view of a portion of the utility model at B in fig. 3.

Fig. 5 is a schematic diagram of the structure of the driving block of the present utility model.

The reference numbers shown in the drawings:

1. maintaining the bracket; 2. grinding roller; 3. a grinding roll shaft; 4. a fixing frame; 5. a U-shaped groove; 6. a chute; 7. a cover plate; 8. a movable bracket; 9. a push rod; 10. a fixing groove; 11. a fixed block; 12. a fixed spring; 13. a chute; 14. a driving block; 15. a return spring; 16. a driven screw; 17. a drive screw; 18. an oil cylinder; 19. a rotating electric machine.

Detailed Description

The utility model will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the utility model, and such equivalents are intended to fall within the scope of the utility model as defined herein.

The utility model provides a Raymond mill grinding roller maintenance device, as shown in figures 1-5, comprising a maintenance bracket 1 for fixing a grinding roller 2 assembly, wherein the grinding roller 2 assembly comprises a grinding roller 2, a grinding roller shaft 3 is connected in the grinding roller 2 in an interference manner, a plurality of fixing frames 4 which are contacted with one side of the grinding roller 2 are arranged on the maintenance bracket 1, U-shaped grooves 5 for the grinding roller shaft 3 to pass through are arranged on the fixing frames 4, the inner diameter of each U-shaped groove 5 is larger than the outer diameter of the grinding roller shaft 3 and smaller than the outer diameter of the grinding roller 2, the grinding roller shaft 3 is placed in each U-shaped groove 5 of the fixing frames 4, the grinding roller 2 assembly is driven to slide down to the center of the bottom of each U-shaped groove 5 under the action of the gravity of the grinding roller 2 assembly, one side of the grinding roller 2 is contacted with one side of one fixing frame 4, so that the grinding roller 2 assembly is primarily fixed on the maintenance bracket 1, and the operation of fixing the grinding roller 2 assembly is simple and convenient, furthermore, the efficiency of fixing the grinding roller 2 assembly is improved, in addition, the fixing effect can be kept well after the fixing frame is used for a long time due to the fact that the fixing effect is kept after the fixing roller 2 assembly is used for a long time, and the accident is prevented from being used; the sliding grooves 6 are symmetrically arranged on the maintenance support 1 along the vertical direction, the cover plates 7 contacted with the grinding roller shafts 3 are connected in a sliding manner in the sliding grooves 6, and the grinding roller shafts 3 are prevented from being overturned by external force in the U-shaped grooves 5 by sliding the cover plates 7 in the sliding grooves 6 and contacting with the grinding roller shafts 3, so that the grinding roller 2 assembly is further fixed, the operation of fixing the grinding roller 2 assembly is simple and convenient, and the efficiency of fixing the grinding roller 2 assembly is improved; one side of maintenance support 1 has movable support 8 along vertical sliding connection, it has ejector pin 9 to follow the horizontal slip on the movable support 8, ejector pin 9 contacts with the tip of grinding roller axle 3, through the one side at maintenance support 1 along vertical sliding movable support 8, adjust ejector pin 9 position and make it aim at the grinding roller axle 3 that external diameter size is different, afterwards follow horizontal sliding ejector pin 9 and the tip of grinding roller axle 3 contact, and apply external force to grinding roller axle 3 to promote grinding roller axle 3 relative grinding roller 2 motion, thereby make grinding roller axle 3 and grinding roller 2 drop, and then realize changing and maintenance to grinding roller 2, and for the mode of beating grinding roller axle 3 greatly, the mode through horizontal sliding ejector pin 9 and grinding roller axle 3 contact is more firm and accurate, avoid not beating grinding roller axle 3 center and influence the efficiency of maintaining grinding roller 2, improved the efficiency to a certain extent, beat dislocation simultaneously also avoid beating the dislocation and arousing the incident.

Preferably, a plurality of fixed slots 10 communicated with the sliding chute 6 are formed in the maintenance support 1, fixed blocks 11 are symmetrically arranged in the cover plate 7 in the transverse direction, and the cover plate 7 is limited to slide in the sliding chute 6 by means of the insertion fit of the fixed blocks 11 and the fixed slots 10, so that the cover plate 7 is fixed in the sliding chute 6, the grinding roller 2 assembly is better fixed, the operation steps of fixing the grinding roller 2 assembly are simplified, and the efficiency of fixing the grinding roller 2 assembly is improved.

Preferably, the end of the fixed block 11 is provided with an inclined plane contacting with the fixed slot 10, and a fixed spring 12 is arranged between the fixed block 11 and the cover plate 7, so that when the cover plate 7 slides downwards, the inclined plane contacts with the fixed slot 10 to drive the fixed block 11 to slide transversely and compress the fixed spring 12, and when the cover plate 7 moves to contact with the grinding roller shaft 3, the fixed block 11 automatically slides out and is in plug-in fit with the corresponding fixed slot 10 under the resilience force of the fixed spring 12, so that the grinding roller shaft 3 is prevented from being overturned by external force in the U-shaped slot 5, the operation steps of fixing the grinding roller 2 assembly are simplified, and the efficiency of fixing the grinding roller 2 assembly is improved.

Preferably, the top of fixed block 11 is equipped with chute 13, be connected with drive block 14 along vertical sliding in the apron 7, drive block 14's one end and chute 13 sliding contact, the other end extends to the apron 7 outside, be equipped with reset spring 15 between drive block 14 and the apron 7, when the apron 7 need be taken out along vertical upward slip apron 7, make it along vertical slip and with chute 13 sliding contact through pressing drive block 14 to drive fixed block 11 horizontal slip and release the cooperation with fixed slot 10, the restriction of apron 7 slip in spout 6 has been released, make apron 7 roll-off upwards, release the fixed to grinding roller 2 assembly, and then simplify the operation steps of knowing the fixed grinding roller 2 assembly, improve the fixed efficiency of knowing the grinding roller 2 assembly.

Preferably, the maintenance support 1 is rotatably connected with a driven screw 16, the driven screw 16 is in threaded connection with the movable support 8, the maintenance support 1 is rotatably connected with a driving screw 17 meshed with the driven screw 16, and the driving screw 17 is rotated to enable the driven screw 16 to rotate and drive the movable support 8 to slide on the maintenance support 1, so that the position of the ejector rod 9 is adjusted, and the position corresponds to the center of the grinding roll shaft 3.

Preferably, the movable support 8 is provided with an oil cylinder 18, the driving end of the oil cylinder 18 is connected with the ejector rod 9, a hydraulic oil cylinder 18 with a model RRH-1001 can be referred to specifically, a rotating motor 19 is arranged on one side of the maintenance support 1, a rotating motor 19 with a model HF-KP43 can be referred to specifically, the sliding end of the rotating motor 19 is connected with the driving screw 17, the ejector rod 9 is driven by the oil cylinder 18 to slide transversely and the driving screw is driven by the cylinder to rotate, so that the operation steps of position calibration and transverse sliding of the ejector rod 9 are simplified, and the maintenance efficiency of the grinding roller 2 is improved.

Example 1

The utility model provides a Raymond mill grinding roller maintenance device, as shown in figures 1-5, comprising a maintenance support 1 for fixing a grinding roller 2 assembly, wherein a plurality of fixing frames 4 are arranged on the maintenance support 1, U-shaped grooves 5 with inner diameters larger than the outer diameter of a grinding roller shaft 3 and smaller than the outer diameter of the grinding roller 2 are arranged on the fixing frames 4, the grinding roller shaft 3 is placed in the U-shaped grooves 5 of the fixing frames 4, the grinding roller 2 assembly is driven to slide down to the center of the bottom of the U-shaped grooves 5 under the action of gravity of the grinding roller 2 assembly, one side of the grinding roller 2 is contacted with the side surface of one of the fixing frames 4, so that the grinding roller 2 assembly is primarily fixed on the maintenance support 1, sliding grooves 6 are symmetrically arranged on the maintenance support 1 along the vertical direction, the grinding roller shaft 3 is prevented from being overturned by external force in the U-shaped grooves 5 by sliding a cover plate 7 and contacting with the grinding roller shaft 3 in the sliding grooves 6, thereby further fixing the grinding roller 2 assembly, the front and back buckling lock nuts used for fixing the grinding roller 2 on the grinding roller shaft 3 are detached, the movable support 8 is vertically slid on one side of the maintenance support 1, the position of the ejector rod 9 is adjusted to enable the ejector rod 9 to be aligned with the grinding roller shafts 3 with different outer diameters, then the ejector rod 9 is transversely slid to be contacted with the end portions of the grinding roller shafts 3, external force is applied to the grinding roller shafts 3 to push the grinding roller shafts 3 to move relative to the grinding roller 2, so that the grinding roller shafts 3 and the grinding roller 2 are detached, replacement and maintenance of the grinding roller 2 are achieved, the grinding roller shaft 3 is more firmly and accurately knocked relative to a large hammer, the efficiency of maintaining the grinding roller 2 is prevented from being influenced by the fact that the center of the grinding roller shaft 3 is not knocked, the maintenance efficiency of the grinding roller 2 is improved to a certain extent, and meanwhile safety accidents caused by knocking dislocation are avoided.

Example 2

On the basis of embodiment 1, when the grinding roller 2 is fixed, the cover plate 7 is slid downwards in the chute 6 along the vertical direction, the inclined surface arranged at the end part of the fixed block 11 is contacted with the fixed groove 10, the fixed block 11 is driven by the transverse component force to slide along the transverse direction, and the fixed spring 12 is compressed, so that the cover plate 7 can slide downwards in the chute 6 smoothly, when the cover plate 7 moves to be contacted with the grinding roller shaft 3, the fixed block 11 automatically slides out under the resilience force of the fixed spring 12 and is in plug-in fit with the corresponding fixed groove 10, the grinding roller shaft 3 is prevented from being overturned by external force in the U-shaped groove 5, after the grinding roller 2 is dismounted, the cover plate 7 is required to be slid upwards along the vertical direction, and is taken out, the cover plate 7 is driven to slide along the vertical direction and be in contact with the chute 13 by pressing the driving block 14, the cooperation with the fixed groove 10 is relieved, the limitation of the cover plate 7 in the chute 6 is relieved, the upward sliding of the cover plate 7 is enabled, the fixing of the grinding roller 2 assembly is relieved, the operation procedure of removing the grinding roller 2 assembly is simplified, and the fixing operation procedure of removing the grinding roller 2 assembly is improved.

Example 3

On the basis of embodiment 1, the driving threaded rod is driven to rotate by the rotating motor 19, so that the driven screw 16 meshed with the driving screw 17 rotates, and the movable support 8 in threaded connection with the driven screw 16 is driven to slide on the maintenance support 1, so that the position of the ejector rod 9 is adjusted, the center of the corresponding grinding roll shaft 3 is enabled to be corresponding to the center of the grinding roll shaft 3, then the ejector rod 9 is driven by the oil cylinder 18 to transversely slide to be in contact with the end part of the grinding roll shaft 3, and external force is applied to the grinding roll shaft 3 to push the grinding roll shaft 3 to move relative to the grinding roll 2, so that the grinding roll shaft 3 and the grinding roll 2 are separated, and replacement and overhaul of the grinding roll 2 are realized.

Claims

1. The utility model provides a raymond mill grinding roller maintenance device, is including being used for fixed grinding roller assembly's maintenance support (1), the grinding roller assembly includes grinding roller (2), interference connection has grinding roller axle (3), its characterized in that in grinding roller (2): be equipped with a plurality of mount (4) that contact with grinding roller (2) one side on maintenance support (1), be equipped with U type groove (5) that supply grinding roller axle to pass on mount (4), U type groove (5) internal diameter is greater than grinding roller axle (3) external diameter, is less than grinding roller (2) external diameter, be equipped with spout (6) along vertical symmetry on mount (4), sliding connection has apron (7) that contact with grinding roller axle (3) in spout (6), there is movable support (8) one side of maintenance support (1) along vertical sliding connection, there is ejector pin (9) along the lateral sliding on movable support (8), ejector pin (9) contact with the tip of grinding roller axle (3).

2. The raymond mill grinding roller maintenance device according to claim 1, wherein: the maintenance support (1) is provided with a plurality of fixing grooves (10) communicated with the sliding grooves (6), the cover plate (7) is internally and symmetrically provided with fixing blocks (11) along the transverse direction, and the fixing blocks (11) are in plug-in fit with the fixing grooves (10).

3. The raymond mill grinding roller maintenance device according to claim 2, wherein: the end part of the fixed block (11) is provided with an inclined plane which is contacted with the fixed groove (10), and a fixed spring (12) is arranged between the fixed block (11) and the cover plate (7).

4. A raymond mill grinding roller maintenance device according to claim 3, characterized in that: the top of fixed block (11) is equipped with chute (13), be connected with drive block (14) along vertical sliding in apron (7), the one end and chute (13) sliding contact of drive block (14), the other end extends to apron (7) outside, be equipped with reset spring (15) between drive block (14) and apron (7).

5. The raymond mill grinding roller maintenance device according to claim 1, wherein: the maintenance support (1) is rotationally connected with a driven screw (16), the driven screw (16) is in threaded connection with the movable support (8), and the maintenance support (1) is rotationally connected with a driving screw (17) meshed with the driven screw (16).

6. The raymond mill grinding roller maintenance device according to claim 5, wherein: the movable support (8) is provided with an oil cylinder (18), the driving end of the oil cylinder (18) is connected with the ejector rod (9), one side of the maintenance support (1) is provided with a rotating motor (19), and the sliding end of the rotating motor (19) is connected with the driving screw rod (17).