Buffer structure of rocker arm of vertical pulverizer

Abstract

The utility model relates to the technical field of vertical flour mills, and provides a buffer structure of a rocker arm of a vertical flour mill, which comprises a base and a buffer structure, the top end of the base is fixedly provided with a shell, one side of the shell is fixedly provided with a feed pipe, the top end inside the shell is provided with a suction device, one side of the top of the shell is fixedly provided with a discharge pipe, and the top end of the shell is provided with a discharge pipe. Grinding assemblies are fixed to the two sides of the shell correspondingly, and buffering structures are arranged on the two sides of the top end of the base correspondingly. According to the utility model, through the arrangement of the buffer structure, when the grinding roller grinds materials, the rocker arm is vibrated, so that the rocker arm drives a support plate to move downwards to move a damper and a cylinder downwards, and then a second spring and a first spring are compressed; and therefore, the first spring and the second spring play a role in buffering the supporting plate, loss generated in the grinding process of the material grinding assembly is effectively relieved, impact and vibration of the rocker arm in the moving process are reduced, and the service life of the material grinding assembly is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of vertical grinding mill technology, and in particular to a buffer structure for the rocker arm of a vertical grinding mill. Background Technology

[0002] Vertical grinding mills are integrated grinding equipment that combines fine crushing, drying, grinding, powder selection, and conveying. They are widely used in industries such as cement, building materials, power, metallurgy, chemicals, and non-metallic minerals. A buffer structure for the rocker arm of a vertical grinding mill achieves smooth control of the rocker arm's movement and effective absorption of impact energy. This design not only improves the working efficiency and stability of the vertical grinding mill but also helps extend the equipment's service life.

[0003] To address this, patent CN207655233U discloses an ultrafine heavy calcium carbonate vertical mill, comprising a feeder, a feeding pipe, a rocker arm, a classifier, grinding rollers, a grinding disc, a reducer, and a motor; the feeder is connected to the feeding pipe; a material moisture monitor is installed on the feeder; the feeder has an internal spiral design; and the classifier has two-stage classification. This utility model's ultrafine heavy calcium carbonate vertical mill, after modification, increases the fine powder content, enabling the production of high-purity ultrafine powder. It effectively solves the problem of fluctuation in powder (lower product) quality (fineness) under secondary classification, and features simple structure, energy saving and environmental protection, and high production efficiency.

[0004] During use, the rocker arm of the ultrafine heavy calcium carbonate vertical mill mentioned above will generate a large impact force between the rocker arm and the machine body, which can easily cause wear on the rocker arm, as well as vibration and noise problems. It is not easy to buffer the rocker arm, thus affecting the overall service life. Utility Model Content

[0005] The purpose of this invention is to provide a buffer structure for the rocker arm of a vertical grinding mill, in order to solve the defect that existing vertical grinding mills are not convenient for buffering.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a buffer structure for a vertical grinding mill rocker arm, including a base and a buffer structure;

[0007] The top of the base is fixed with a housing, a feed pipe is fixed to one side of the housing, a suction device is installed inside the top of the housing, a discharge pipe is fixed to one side of the top of the housing, and abrasive components are fixed to both sides of the housing.

[0008] Both sides of the top of the base are provided with a buffer structure. The buffer structure includes an internal groove on both sides of the top of the base. A damper is installed inside the internal groove. A first spring is installed on the outer side of the bottom of the damper. A cylinder is fixed to the top of the damper on the outer side of the base. A second spring is installed on the outer side of the top of the damper inside the cylinder. A first hinge rod is installed at the bottom of the damper. A second hinge rod is installed at the top of the cylinder.

[0009] Preferably, the abrasive assembly includes a grinding disc disposed inside the housing, a conical block fixed at the center of the grinding disc, an internal cavity disposed at the center of the base, a first motor fixed inside the internal cavity, a first rotating shaft fixed at the output end of the first motor, support blocks mounted on both sides of the top of the base, a fixing rod fixed on one side of each support block, a rocker arm rotatably connected to the outside of the fixing rod, a support plate fixed on one side of the bottom of the rocker arm, a hydraulic push rod mounted on one side of the support plate, a second motor fixed at the top of the support plate, a second rotating shaft fixed at the output end of the second motor, through holes disposed on both sides of the housing, a roller fixed at one end of the second rotating shaft inside the through holes, and a grinding roller fixed at one end of the roller inside the grinding disc.

[0010] Preferably, the output end of the first rotating shaft extends through the top of the built-in cavity into the interior of the housing and is fixedly connected to the middle position of the bottom end of the grinding disc. The support blocks are symmetrically distributed on both sides of the base, and the two ends of the fixing rod are fixedly connected to one side of the support block.

[0011] With the above structure, during use, the rotation of the grinding disc causes the material to be automatically dispersed to the front of the grinding roller under centrifugal force for crushing, thus dispersing the material at the edge of the grinding disc for easy crushing.

[0012] Preferably, the rocker arm and the support block are hinged together by a fixed rod, and the two ends of the hydraulic push rod are hinged to one side of the support plate and the top of the base, respectively.

[0013] With the above structure, during use, the hydraulic push rod is activated to drive the support plate to rotate, causing the rocker arm to rotate outside the fixed rod. This causes the roller shaft to drive the grinding roller to apply downward pressure, thus making the material more thoroughly crushed.

[0014] Preferably, the built-in grooves are symmetrically distributed on both sides of the top of the base, the cylinder and the built-in grooves form a telescopic structure through a first spring, and the damper and the cylinder form a telescopic structure through a second spring.

[0015] With the above structure, the damper can be extended and retracted through the support plate during use, so that the first spring and the second spring can buffer the support plate, effectively reducing the wear of the abrasive assembly during grinding, reducing the impact and vibration of the rocker arm during movement, and thus improving the service life of the abrasive assembly.

[0016] Preferably, both ends of the first hinge rod are fixedly connected to the interior of the base, the damper and the built-in groove are hingedly connected through the first hinge rod, both ends of the second hinge rod are fixedly connected to the interior of the support plate, and the cylinder and the support plate are hingedly connected through the second hinge rod.

[0017] With the above structure, it is easy to drive the damper to extend and retract by rotating the support plate during use, so as to ensure that the damper plays a buffering and supporting role for the support plate.

[0018] The buffer structure for the rocker arm of a vertical grinding mill provided by this utility model has the following advantages:

[0019] By incorporating an abrasive assembly, the material falls onto the conical block and then slides down to the edge of the grinding disc under its own gravity. The rotation of the grinding disc causes the material to be automatically dispersed in front of the grinding rollers for crushing under centrifugal force. By activating the hydraulic push rod to extend and retract, the support plate is driven to rotate the rocker arm outside the fixed rod, which in turn drives the grinding rollers to apply downward pressure to crush the material. Simultaneously, the rotation of the grinding rollers and the action of the rotating grinding disc further crush the material, thus enabling the material to be pulverized more thoroughly.

[0020] By incorporating a buffer structure, the grinding roller vibrates the rocker arm as it crushes the material. This causes the rocker arm to move the support plate downwards, which in turn moves the damper and cylinder downwards. Consequently, the second and first springs are compressed, allowing them to buffer the support plate. This effectively reduces wear on the abrasive assembly during grinding, minimizes impact and vibration on the rocker arm, and ultimately extends the service life of the abrasive assembly. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a frontal cross-sectional view of the present invention.

[0023] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0024] Figure 4 This is a side sectional view of the present invention.

[0025] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point B.

[0026] The reference numerals in the figure are as follows: 1. Base; 2. Housing; 3. Feed pipe; 4. Suction device; 5. Discharge pipe; 6. Abrasive assembly; 601. Grinding disc; 602. Conical block; 603. Internal cavity; 604. First motor; 605. First rotating shaft; 606. Support block; 607. Fixing rod; 608. Rocker arm; 609. Support plate; 610. Hydraulic push rod; 611. Second motor; 612. Second rotating shaft; 613. Through hole; 614. Roller shaft; 615. Grinding roller; 7. Buffer structure; 701. Internal groove; 702. Damper; 703. First spring; 704. Cylinder; 705. Second spring; 706. First hinge rod; 707. Second hinge rod. Detailed Implementation

[0027] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 The present invention provides a buffer structure for a vertical grinding mill rocker arm, comprising a base 1 and a buffer structure 7.

[0029] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, a housing 2 is fixed to the top of the base 1, a feed pipe 3 is fixed to one side of the housing 2, a suction device 4 is installed inside the top of the housing 2, a discharge pipe 5 is fixed to one side of the top of the housing 2, and an abrasive assembly 6 is fixed to both sides of the housing 2. The abrasive assembly 6 includes a grinding disc 601 disposed inside the housing 2, a conical block 602 is fixed at the middle position inside the grinding disc 601, an internal cavity 603 is disposed at the middle position inside the base 1, a first motor 604 is fixed inside the internal cavity 603, a first rotating shaft 605 is fixed to the output end of the first motor 604, support blocks 606 are installed on both sides of the top of the base 1, a fixing rod 607 is fixed to one side of the support block 606, a rocker arm 608 is rotatably connected to the outside of the fixing rod 607, a support plate 609 is fixed to one side of the bottom of the rocker arm 608, and a support plate 609 is installed on one side of the support plate 609. The device includes a hydraulic push rod 610, a second motor 611 fixed to the top of the support plate 609, a second rotating shaft 612 fixed to the output end of the second motor 611, through holes 613 on both sides of the housing 2, a roller 614 fixed to one end of the second rotating shaft 612 inside the through hole 613, a grinding roller 615 fixed to one end of the roller 614 inside the grinding disc 601, the output end of the first rotating shaft 605 extending through the top of the internal cavity 603 to the inside of the housing 2 and fixedly connected to the middle position of the bottom of the grinding disc 601, support blocks 606 symmetrically distributed on both sides of the base 1, both ends of the fixing rod 607 fixedly connected to one side of the support block 606, the rocker arm 608 and the support block 606 are hingedly connected through the fixing rod 607, and both ends of the hydraulic push rod 610 are hingedly connected to one side of the support plate 609 and the top of the base 1.

[0030] Material is fed into the grinding disc 601 through the feed pipe 3, causing it to fall onto the conical block 602. Under its own gravity, the material falls to the edge of the grinding disc 601. The first motor 604 drives the first rotating shaft 605, causing the grinding disc 601 to rotate. Under centrifugal force, the material is automatically dispersed to the front of the grinding roller 615 for crushing. The hydraulic push rod 610 drives the support plate 609 to rotate, causing the rocker arm 608 to rotate outside the fixed rod 607. This causes the roller shaft 614 to drive the grinding roller 615 to apply downward pressure. At the same time, the second motor 611 drives the second rotating shaft 612, causing the roller shaft 614 to drive the grinding roller 615 to rotate. The rotation of the grinding roller 615 and the rotation of the grinding disc 601 further crush the material, resulting in more thorough crushing.

[0031] Reference Figures 2-5As shown, buffer structures 7 are provided on both sides of the top of the base 1. Each buffer structure 7 includes an internal groove 701 on both sides of the top of the base 1. A damper 702 is installed inside the internal groove 701. A first spring 703 is installed on the outer side of the bottom of the damper 702. A cylinder 704 is fixed to the top of the damper 702 on the outer side of the base 1. A second spring 705 is installed on the outer side of the top of the damper 702 inside the cylinder 704. A first hinge rod 706 is installed at the bottom of the damper 702. A second hinge rod 707 is installed at the top of the cylinder 704. The internal groove 701... 01 are symmetrically distributed on both sides of the top of the base 1. The cylinder 704 and the inner groove 701 form a telescopic structure through the first spring 703. The damper 702 and the cylinder 704 form a telescopic structure through the second spring 705. The two ends of the first hinge rod 706 are fixedly connected to the inside of the base 1. The damper 702 and the inner groove 701 are hingedly connected through the first hinge rod 706. The two ends of the second hinge rod 707 are fixedly connected to the inside of the support plate 609. The cylinder 704 and the support plate 609 are hingedly connected through the second hinge rod 707.

[0032] When the grinding roller 615 crushes the material, it vibrates the rocker arm 608, causing the rocker arm 608 to move the support plate 609 downward, which in turn moves the damper 702 and the cylinder 704 downward. This compresses the second spring 705 and the first spring 703, allowing the first spring 703 and the second spring 705 to buffer the support plate 609. This effectively reduces the wear and tear on the abrasive assembly 6 during grinding, reduces the impact and vibration of the rocker arm 608 during movement, and thus improves the service life of the abrasive assembly 6.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A buffer structure for a vertical grinding mill rocker arm, comprising a base (1) and a buffer structure (7); Its features are: The top of the base (1) is fixed with a housing (2), a feed pipe (3) is fixed on one side of the housing (2), a suction device (4) is installed inside the top of the housing (2), a discharge pipe (5) is fixed on one side of the top of the housing (2), and abrasive components (6) are fixed on both sides of the housing (2). Both sides of the top of the base (1) are provided with buffer structures (7). The buffer structure (7) includes an internal groove (701) on both sides of the top of the base (1). A damper (702) is installed inside the internal groove (701). A first spring (703) is installed on the outer side of the bottom of the damper (702). A cylinder (704) is fixed to the top of the damper (702) on the outer side of the base (1). A second spring (705) is installed on the outer side of the top of the damper (702) inside the cylinder (704). A first hinge rod (706) is installed at the bottom of the damper (702). A second hinge rod (707) is installed at the top of the cylinder (704).

2. The buffer structure of the rocker arm of a vertical grinding mill according to claim 1, characterized in that: The abrasive assembly (6) includes a grinding disc (601) disposed inside the housing (2). A conical block (602) is fixed at the middle position inside the grinding disc (601). An internal cavity (603) is disposed at the middle position inside the base (1). A first motor (604) is fixed inside the internal cavity (603). A first rotating shaft (605) is fixed at the output end of the first motor (604). Support blocks (606) are installed on both sides of the top of the base (1). A fixing rod (607) is fixed on one side of the support block (606). The outer side of the fixing rod (607) rotates. A rocker arm (608) is connected, and a support plate (609) is fixed on one side of the bottom of the rocker arm (608). A hydraulic push rod (610) is installed on one side of the support plate (609). A second motor (611) is fixed on the top of the support plate (609). A second rotating shaft (612) is fixed at the output end of the second motor (611). Through holes (613) are respectively provided on both sides of the housing (2). A roller shaft (614) is fixed at one end of the second rotating shaft (612) inside the through hole (613). A grinding roller (615) is fixed at one end of the roller shaft (614) inside the grinding disc (601).

3. The buffer structure of the rocker arm of a vertical grinding mill according to claim 2, characterized in that: The output end of the first rotating shaft (605) extends through the top of the built-in cavity (603) to the inside of the housing (2) and is fixedly connected to the middle position of the bottom of the grinding disc (601). The support blocks (606) are symmetrically distributed on both sides of the base (1). The two ends of the fixing rod (607) are fixedly connected to one side of the support block (606).

4. The buffer structure of the rocker arm of a vertical grinding mill according to claim 2, characterized in that: The rocker arm (608) and the support block (606) are hinged together by a fixing rod (607), and the two ends of the hydraulic push rod (610) are hinged together with one side of the support plate (609) and the top of the base (1), respectively.

5. The buffer structure of the rocker arm of a vertical grinding mill according to claim 1, characterized in that: The built-in grooves (701) are symmetrically distributed on both sides of the top of the base (1). The cylinder (704) and the built-in grooves (701) form a telescopic structure through the first spring (703). The damper (702) and the cylinder (704) form a telescopic structure through the second spring (705).

6. The buffer structure of the rocker arm of a vertical grinding mill according to claim 1, characterized in that: The two ends of the first hinge rod (706) are fixedly connected to the interior of the base (1), and the damper (702) and the built-in groove (701) are hinged together by the first hinge rod (706).

7. The buffer structure for the rocker arm of a vertical grinding mill according to claim 2, characterized in that: The two ends of the second hinge rod (707) are fixedly connected to the inside of the support plate (609), and the cylinder (704) and the support plate (609) are hinged together by the second hinge rod (707).

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