A high-pressure roller mill quick maintenance device

Abstract

The utility model relates to high pressure roller mill maintenance technical field, concretely for a kind of high pressure roller mill quick maintenance device, including base, the top side of base is equipped with support frame, vertical through lifting mechanism has in the top side of support frame, the middle part of the bottom of lifting mechanism is vertically through suction mechanism, the inside wall of the side of support frame is equipped with two slide rails, the inside wall of the left and right sides of two slide rails is rotatably connected with moving mechanism, the outside wall of the side of moving mechanism is equipped with expansion mechanism, the inside of base is placed with two laser alignment instrument, the four corners of base bottom are screwed with universal wheel.The improved maintenance device, lifting mechanism can be compatible with different specifications of equipment maintenance needs, suction mechanism can absorb lining and realize quick disassembly, avoid the damage to lining or roller, moving mechanism and expansion mechanism are combined, bearing expansion and pulling action can be completed coherently, and the pause time of replacement tool is saved.

Description

Technical Field

[0001] This utility model relates to the field of high pressure roller mill maintenance technology, specifically a high pressure roller mill rapid maintenance device. Background Technology

[0002] High-pressure roller mill maintenance is a highly technical and demanding systematic project. Its core lies in solving key issues such as the disassembly and assembly of heavy components, precise alignment, and rapid production recovery. It is primarily used for the maintenance and troubleshooting of high-pressure roller mills in industries such as mining and cement. Traditional maintenance methods mainly rely on heavy lifting equipment and employ techniques such as oxy-acetylene cutting and hammering. High-pressure roller mill maintenance directly impacts the operating efficiency and economic benefits of the production line.

[0003] During the design process of this utility model, the following problems were discovered in the existing technology:

[0004] The existing maintenance of high-pressure roller mills mainly involves replacing the liners and bearings. The liners are fixed with multiple bolts on the same side. When disassembling and assembling them, the bolts need to be unscrewed manually, which is not only time-consuming and laborious, but also easy to damage the liners or rollers. The disassembly and assembly of the bearings requires removing the entire roller for pulling and installation. This involves more tools and steps and is prone to causing secondary damage. Utility Model Content

[0005] The purpose of this invention is to provide a rapid repair device for high-pressure roller mills to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid repair device for a high-pressure roller mill, comprising a base, a support frame on one side of the top of the base, a lifting mechanism vertically penetrating one side of the top of the support frame, an adsorption mechanism vertically penetrating the middle of the bottom of the lifting mechanism, two slide rails on one side of the inner wall of the support frame, a moving mechanism rotatably connected to the left and right inner walls of the two slide rails, an expansion mechanism on one side of the outer wall of the moving mechanism, two laser alignment instruments placed inside the base, and universal wheels screwed to the four corners of the bottom of the base.

[0007] More preferably, the lifting mechanism includes a hydraulic cylinder A, the driving end of the hydraulic cylinder A is perpendicularly inserted through one side of the top of the support frame, the driving end of the hydraulic cylinder A is provided with a connecting frame, an adsorption mechanism is inserted into the middle of the bottom of the connecting frame, and two telescopic rods are provided between the top two sides of the connecting frame and the top wall of the support frame.

[0008] More preferably, the adsorption mechanism includes a vacuum pump, an exhaust pipe is inserted into the top of the vacuum pump, the top of the exhaust pipe is inserted into the middle of the bottom of the connecting frame, a vacuum branch pipe is inserted into the bottom of the vacuum pump, a suction cup is provided at the bottom of the vacuum branch pipe, a breathable partition is provided on the inner wall of the suction cup, a telescopic spring is provided at the middle of the bottom of the breathable partition, and an impact pin is provided at the bottom of the telescopic spring.

[0009] More preferably, the moving mechanism includes two moving screws, the left and right ends of which are rotatably connected to the inner walls of the left and right sides of the slide rail, respectively. Moving screw plates are screwed onto the outer walls of the two moving screws. An expansion mechanism is provided on the front outer wall of the moving screw plates. A transmission main wheel is sleeved on one end of the outer wall of one of the moving screws, and a transmission driven wheel is sleeved on one end of the outer wall of the other moving screw. A belt is sleeved on the outer walls of the transmission main wheel and the transmission driven wheel. A drive motor is inserted into the end of the moving screw sleeved with the transmission main wheel.

[0010] More preferably, the expansion mechanism includes a hydraulic cylinder B, the tail end of which is screwed to the front outer wall of the movable screw plate, the driving end of which extends laterally through the interior of the connecting channel, a fixing groove is provided at the end of the connecting channel away from the hydraulic cylinder B, and two abutments are rotatably connected to the two ends of the upper and lower inner walls of the fixing groove, and the tail end of the connecting channel is welded to the two ends of the front side of the movable screw plate.

[0011] More preferably, a collection box is slidably connected to the inner walls of the left and right sides of the bottom end of the base.

[0012] More preferably, the bottom of the laser alignment instrument is provided with a fixed frame, and two electric push rods are transversely penetrating the left and right sides of the fixed frame, with clamping rings provided at the opposite ends of the two electric push rods.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] The lifting mechanism provides precise positioning to ensure a perfect fit between the suction cup and the liner, while also being compatible with the maintenance needs of equipment of different specifications. The suction mechanism firmly adsorbs the liner and strikes the impact pin to instantly impact the liner clip, achieving rapid loosening and disassembly. It also avoids damage to the liner or roller caused by traditional hammering. The combination of the moving mechanism and the expansion mechanism enables the bearing expansion and pulling actions to be completed in a smooth manner, eliminating the downtime of changing tools. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the adsorption mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the moving mechanism structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the laser alignment instrument of this utility model.

[0019] In the diagram: 1. Base; 101. Collection box; 2. Support frame; 3. Lifting mechanism; 301. Hydraulic cylinder A; 302. Connecting frame; 303. Telescopic rod; 4. Adsorption mechanism; 401. Air pump; 402. Exhaust pipe; 403. Air extraction branch pipe; 404. Suction cup; 405. Ventilation partition; 406. Telescopic spring; 407. Impact pin; 5. Slide rail; 6. Moving mechanism; 601. Moving screw; 602. Moving screw plate; 603. Transmission main wheel; 604. Transmission driven wheel; 605. Belt; 606. Drive motor; 7. Expansion mechanism; 701. Hydraulic cylinder B; 702. Connecting channel; 703. Fixing groove; 704. Claw; 8. Laser alignment instrument; 9. Universal wheel; 801. Fixing frame; 802. Electric push rod; 803. Clamping ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a high-pressure roller mill quick repair device, including a base 1, a support frame 2 on one side of the top of the base 1, a lifting mechanism 3 vertically penetrating one side of the top of the support frame 2, an adsorption mechanism 4 vertically penetrating the middle of the bottom of the lifting mechanism 3, two slide rails 5 on one side of the inner wall of the support frame 2, a moving mechanism 6 rotatably connected to the inner walls of the left and right sides of the two slide rails 5, an expansion mechanism 7 on one side of the outer wall of the moving mechanism 6, two laser alignment instruments 8 placed inside the base 1, and universal wheels 9 screwed to the four corners of the bottom of the base 1.

[0022] In this embodiment, as Figure 1 and Figure 2 As shown, the lifting mechanism 3 includes a hydraulic cylinder A301. The driving end of the hydraulic cylinder A301 is vertically inserted through one side of the top of the support frame 2. The driving end of the hydraulic cylinder A301 is provided with a connecting frame 302. An adsorption mechanism 4 is inserted into the middle of the bottom of the connecting frame 302. Two telescopic rods 303 are provided between the top two sides of the connecting frame 302 and the top wall of the support frame 2.

[0023] In this embodiment, as Figure 1 and Figure 2 As shown, the adsorption mechanism 4 includes a vacuum pump 401, an exhaust pipe 402 is inserted into the top of the vacuum pump 401, the top of the exhaust pipe 402 is inserted into the middle of the bottom of the connecting frame 302, a vacuum branch pipe 403 is inserted into the bottom of the vacuum pump 401, a suction cup 404 is provided at the bottom of the suction cup 403, a breathable partition 405 is provided on the inner wall of the suction cup 404, a telescopic spring 406 is provided at the middle of the bottom of the breathable partition 405, and an impact needle 407 is provided at the bottom of the telescopic spring 406.

[0024] In this embodiment, as Figure 3 As shown, the moving mechanism 6 includes two moving screws 601. The left and right ends of the moving screws 601 are rotatably connected to the inner walls of the left and right sides of the slide rail 5, respectively. Moving screw plates 602 are screwed onto the outer walls of the two moving screws 601. An expansion mechanism 7 is provided on the front outer wall of the moving screw plate 602. A transmission main wheel 603 is sleeved on the outer wall of one end of one moving screw 601, and a transmission driven wheel 604 is sleeved on the outer wall of the other moving screw 601. A belt 605 is sleeved on the outer walls of the transmission main wheel 603 and the transmission driven wheel 604. A drive motor 606 is inserted into the end of the moving screw 601 sleeved with the transmission main wheel 603.

[0025] In this embodiment, as Figure 3 As shown, the expansion mechanism 7 includes a hydraulic cylinder B701. The tail end of the hydraulic cylinder B701 is screwed to the front outer wall of the movable screw plate 602. The driving end of the hydraulic cylinder B701 extends laterally through the interior of the connecting channel 702. A fixing groove 703 is provided at one end of the connecting channel 702 away from the hydraulic cylinder B701. Two abutments 704 are rotatably connected to the two ends of the upper and lower inner walls of the fixing groove 703. The tail end of the connecting channel 702 is welded to the two ends of the front side of the movable screw plate 602.

[0026] In this embodiment, as Figure 4 As shown, a collection box 101 is slidably connected to the inner walls of the left and right sides of the bottom end of the base 1.

[0027] In this embodiment, as Figure 4 As shown, the bottom of the laser alignment instrument 8 is provided with a fixed frame 801, and two electric push rods 802 are horizontally inserted through the left and right sides of the fixed frame 801. The opposite ends of the two electric push rods 802 are provided with clamping rings 803.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the working process of this high-pressure roller mill quick repair device is as follows:

[0029] First, maintenance personnel can use the four casters 9 to push the entire device to the high-pressure roller mill that needs maintenance. After reaching the position, lock the casters 9 to ensure stability. Then, the maintenance personnel can start the hydraulic cylinder A301 to begin working, causing its drive end to extend downwards and push the connected frame 302 to slowly descend. During this process, the telescopic rods 303 on both sides of the top of the connected frame 302 will extend synchronously, and the entire adsorption mechanism 4 inserted into the bottom of the connected frame 302 will also descend synchronously until the suction cups 404 in the adsorption mechanism 4 can tightly adhere to the surface of the roller liner. At the same time, the vacuum pump 401 is started, which uses the inserted vacuum pipe 403 to create a vacuum between the suction cups 404 and the liner. Then, a rubber... A hammer strikes the top of the suction cup 404, causing the impact pin 407 inside the suction cup 404 to vibrate and, under the action of the telescopic spring 406, to strike the liner clip. Upon hearing a "click," maintenance personnel can slowly lift the entire adsorption mechanism 4 using the hydraulic cylinder A301, thereby detaching the entire liner from the outer wall of the roller. When installing a new liner, a special high-temperature adhesive is first applied to the back of the new liner. Then, the suction cup 404 is used to adsorb the new liner, precisely fitting it to the outer wall of the roller. After positioning, a tool is used to heat and cure the high-temperature adhesive. During this process, the adsorption mechanism 4 will tightly press the new liner until it is fixed to the outer wall of the roller. When replacing a new bearing, maintenance personnel can first start the drive motor 606, which drives the corresponding movable screw. 601 begins to rotate, causing the transmission main wheel 603, which is sleeved on the outer wall of the end of the movable screw 601, to rotate together. At this time, the belt 605 sleeved on the outer wall of the transmission main wheel 603 will drive the transmission driven wheel 604 on the other side and the movable screw 601 sleeved on the inner wall of the transmission driven wheel 604 to rotate synchronously. This allows the movable screw plate 602, which is screwed to the outer wall of the two movable screws 601, to slide precisely to the bearing position along the thread direction with the expansion mechanism 7, and insert the tips of the two abutments 704 into the inner ring gap of the bearing. Then, the hydraulic cylinder B701 is activated, causing its drive end to extend along the connecting channel 702 until its end can pass between the two abutments 704. Because its end diameter is large, it will push the two abutments outward. 704, causing the two abutments 704 to rotate and open, thus steadily expanding the inner ring of the bearing. This expanded state is maintained, and then the drive end of the hydraulic cylinder B701 retracts, allowing the entire expansion mechanism 7 and the bearing pressed against the outer wall of the two abutments 704 to be removed. At this point, the maintenance personnel can push the new bearing, which has undergone liquid nitrogen freezing treatment, laterally into the shaft end. Once the new bearing bush returns to room temperature, it will automatically lock, completing the installation. After completing the above maintenance and replacement, the maintenance personnel can slide out the collection box 101, remove the two laser alignment instruments 8 placed inside, and install them at both ends of the roller mill. The two sets of electric actuators 802 are then activated via an external controller, bringing their drive ends closer together.The clamping ring 803, which is pushed and connected to it, is tightly attached to both ends of the roller, completing the fixation of the laser alignment device 8. Then, the maintenance personnel can simultaneously open both laser alignment devices 8, causing them to emit rays. At this time, the maintenance personnel can manually rotate the roller and judge the alignment by observing the movement trajectory of the laser points on both sides. If a deviation from the specified value is found, it is necessary to use a feeler gauge to raise the bearing seat for correction. The lifting mechanism 3 adopts a design that uses a hydraulic cylinder A301 for drive and double telescopic rods 303 for guidance, which enables it to maintain extremely high motion stability during the lifting process. Its hydraulic system can provide precise positioning to ensure perfect contact between the suction cup 404 and the liner. The one-button hydraulic control is used to... Compared to traditional manual adjustment, this system offers faster operation and improved processing efficiency. The adjustable stroke design of the hydraulic cylinder A301 allows it to accommodate maintenance needs of different equipment specifications and meet various working conditions. The vacuum pump 401 in the suction mechanism 4 can quickly create a vacuum through the vacuum pipe 403, ensuring the suction cups 404 firmly adhere to the liner and rapidly achieve the working negative pressure. The coordinated operation of multiple suction cups 404 ensures the stable installation and removal of heavy-duty liners. Furthermore, when the top of the suction cup 404 is struck with a rubber hammer, its impact pin 407, under the elastic force of the telescopic spring 406, instantly impacts the liner clips, achieving rapid loosening and disassembly. This also avoids the damage to the liner or roller caused by traditional hammering. Damage is prevented, and after the suction cup 404 adsorbs the new liner, its position can be finely adjusted to ensure perfect fit with the outer wall of the roller. During the high-temperature adhesive curing process, the adsorption mechanism 4 can continuously apply stable pressure to avoid unevenness caused by manual pressing. The two moving screws 601 in the moving mechanism 6 can be synchronously driven through the transmission system, ensuring that the moving screw plate 602 can always slide parallel, so that the two abutments 704 can be perfectly aligned with the bearing position. The drive motor 606 can adjust the speed to adapt to the needs of rapid movement or fine adjustment at different distances. Moreover, the moving mechanism 6 and the expansion mechanism 7 work together to complete the entire process from positioning to disassembly and assembly in one go, saving manual handling and alignment. The process is cumbersome. After the bearing is opened by the expansion mechanism 7, simply activating the moving mechanism 6 allows for direct retraction to remove the bearing without additional tools. The drive end of the hydraulic cylinder B701 in the expansion mechanism 7 precisely pushes open the two abutments 704, allowing them to directly act on the weakest point of the bearing's inner ring, preventing damage to the journal. The extended state holding function of the two abutments 704 enables the expansion and removal actions to be completed seamlessly, eliminating the downtime required for tool changes. The hydraulic system provides a stable expansion force to prevent damage to the bearing housing from sudden impacts, and the rotating connection structure of the abutments 704 automatically compensates for a certain degree of bearing eccentricity.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rapid maintenance device for a high-pressure roller mill, comprising a base (1), characterized in that: The base (1) has a support frame (2) on one side of its top. A lifting mechanism (3) is vertically inserted through one side of the top of the support frame (2). An adsorption mechanism (4) is vertically inserted through the middle of the bottom of the lifting mechanism (3). Two slide rails (5) are provided on one side of the inner wall of the support frame (2). A moving mechanism (6) is rotatably connected to the inner walls of the left and right sides of the two slide rails (5). An expansion mechanism (7) is provided on one side of the outer wall of the moving mechanism (6). Two laser alignment instruments (8) are placed inside the base (1). Universal wheels (9) are screwed to the four corners of the bottom of the base (1).

2. The high-pressure roller mill rapid repair device according to claim 1, characterized in that: The lifting mechanism (3) includes a hydraulic cylinder A (301), the driving end of which is perpendicularly inserted through the top side of the support frame (2). The driving end of the hydraulic cylinder A (301) is provided with a connecting frame (302). An adsorption mechanism (4) is inserted into the middle of the bottom of the connecting frame (302). Two telescopic rods (303) are provided between the top two sides of the connecting frame (302) and the top wall of the support frame (2).

3. The high-pressure roller mill rapid repair device according to claim 2, characterized in that: The adsorption mechanism (4) includes a vacuum pump (401), an exhaust pipe (402) is inserted at the top of the vacuum pump (401), the top of the exhaust pipe (402) is inserted at the middle of the bottom of the connecting frame (302), a vacuum branch pipe (403) is inserted at the bottom of the vacuum pump (401), a suction cup (404) is provided at the bottom of the suction branch pipe (403), a breathable partition (405) is provided on the inner wall of the suction cup (404), a telescopic spring (406) is provided at the middle of the bottom of the breathable partition (405), and an impact needle (407) is provided at the bottom of the telescopic spring (406).

4. The high-pressure roller mill rapid repair device according to claim 1, characterized in that: The moving mechanism (6) includes two moving screws (601). The left and right ends of the moving screws (601) are rotatably connected to the inner walls of the left and right sides of the slide rail (5). The outer walls of the two moving screws (601) are screwed with moving screw plates (602). The front outer wall of the moving screw plates (602) is provided with an expansion mechanism (7). One end of the moving screw (601) is sleeved with a transmission main wheel (603), and the other end of the moving screw (601) is sleeved with a transmission driven wheel (604). The outer walls of the transmission main wheel (603) and the transmission driven wheel (604) are sleeved with belts (605). The end of the moving screw (601) sleeved with the transmission main wheel (603) is inserted with a drive motor (606).

5. A rapid repair device for a high-pressure roller mill according to claim 4, characterized in that: The expansion mechanism (7) includes a hydraulic cylinder B (701), the tail end of which is screwed to the front outer wall of the movable screw plate (602). The driving end of the hydraulic cylinder B (701) extends laterally through the interior of the connecting channel (702). A fixing groove (703) is provided at one end of the connecting channel (702) away from the hydraulic cylinder B (701). Two abutments (704) are rotatably connected to the two ends of the upper and lower inner walls of the fixing groove (703). The tail end of the connecting channel (702) is welded to the two ends of the front side of the movable screw plate (602).

6. The high-pressure roller mill rapid repair device according to claim 1, characterized in that: The base (1) has a collection box (101) slidably connected to the inner walls of the left and right sides at the bottom.

7. A rapid repair device for a high-pressure roller mill according to claim 1, characterized in that: The bottom of the laser alignment instrument (8) is provided with a fixed frame (801), and two electric push rods (802) are horizontally inserted through the left and right sides of the fixed frame (801). The opposite ends of the two electric push rods (802) are provided with clamps (803).

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