Raw material mill grinding roller sealing structure convenient to maintain

Abstract

The utility model provides a raw material mill grinding roller sealing structure convenient to maintain, which comprises a grinding roller, the grinding roller comprises a roller body and two roller shafts fixedly arranged at the two ends of the roller body respectively, the roller shafts are rotatably connected with rotating shafts, the rotating shafts are sleeved with sealing parts, and the sealing parts are connected with the roller body. The sealing component comprises a first sealing cover and a second sealing cover which are arranged on the rotating shaft in a sleeving mode, the first sealing cover and the second sealing cover are used for sealing the rotating shaft after installation, positioning blocks are fixedly installed at the top and the bottom of the first sealing cover, and positioning holes are formed in the positioning blocks. According to the raw material mill grinding roller sealing structure convenient to maintain, split type design is adopted, so that the sealing structure is very convenient to mount and dismount, a large amount of time is saved for follow-up operation of maintaining and replacing the sealing structure, meanwhile, through a self-locking connecting mode of the sealing device, the sealing structure is convenient to maintain, and the sealing structure is convenient to maintain. The problem that according to a traditional bolt connection mode, a sealing device may fall off due to vibration is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of raw material mill rollers, and particularly relates to a sealing structure for a raw material mill roller that is convenient for maintenance. Background Technique

[0002] When the raw material mill is processing, in order to achieve fine pulverization of the material and reach the required particle size, the finely ground material is often screened out by the action of wind, and the material that does not reach the particle size settles and is pulverized again. As a result, there is a large amount of dust at the roller. These dusts will not only accelerate the damage of the roller bearing, but also shorten its service life. Therefore, in order to prevent the powder and dust generated when the roller rotates at high speed from leaking to the rotating shaft of the roller, a certain sealing structure is often required. This kind of sealing device is very important for keeping the rotating shaft of the roller clean, improving the service life of the roller, and improving the grinding efficiency.

[0003] At present, the sealing structure of the raw material mill roller that is convenient for maintenance often uses flanges and bolts for connection. When the roller is in use, the roller frame often has large vibrations, and this kind of vibration often causes the bolts to become loose, posing a certain safety hazard. In addition, the convenience of this connection method for replacement or disassembly needs to be improved.

[0004] In view of this, a sealing structure for a raw material mill roller that is convenient for maintenance is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to solve the above deficiencies and provide a sealing structure for a raw material mill roller that is convenient for maintenance.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme: A sealing structure for a raw material mill roller that is convenient for maintenance, including a roller, the roller includes a roller body and two roller shafts respectively fixedly arranged at both ends of the roller body. A rotating shaft is rotatably connected to the roller shaft, and a sealing component is sleeved on the rotating shaft. The sealing component includes a first sealing cover and a second sealing cover sleeved on the rotating shaft. The first sealing cover and the second sealing cover are used to seal the rotating shaft after installation. Positioning blocks are fixedly installed at the top and bottom of the first sealing cover, and positioning holes are opened in the positioning blocks. Installation blocks are fixedly installed at the top and bottom of the second sealing cover, and positioning rods are fixedly installed on the installation blocks. The size of the positioning rods is adapted to the size of the positioning holes, and a locking component is arranged on the positioning rods for locking the first sealing cover and the second sealing cover after installation.

[0007] Further, the locking component includes a plurality of locking plates rotatably installed on the positioning rods, and a receiving groove is opened on the positioning rods for receiving the locking plates through the positioning holes.

[0008] Further, a rotating rod is fixedly installed at one end of the locking plate, rotating grooves located at both ends of the storage groove are formed on the positioning rod, and the rotating rod is rotatably installed in the corresponding rotating grooves.

[0009] Further, a spring groove is formed in the storage groove, a return spring is fixedly installed on the inner bottom wall surface of the spring groove, one end of the return spring is fixed on the inner bottom wall surface of the spring groove, and the other end of the return spring is fixedly installed at the end of the locking plate away from the rotating rod.

[0010] Further, a limiting block is fixedly installed on the rotating rod, a limiting groove for limiting the limiting block is formed inside the rotating groove, and the limiting block is used to limit the locking plate to prevent the locking plate from rotating in the reverse direction after being locked.

[0011] Further, when the locking plate is in the initial state, the limiting block just abuts against the bottom groove surface of the limiting groove.

[0012] Compared with the prior art, the present utility model has the following beneficial effects: The raw material mill roller sealing structure that is convenient for maintenance provided by the present utility model adopts a split design, making the installation and disassembly of the sealing structure very convenient, saving a large amount of time for subsequent maintenance and replacement operations of the sealing structure. At the same time, through the setting of the locking component, the installation of the two split sealing covers is more convenient. In addition, through the limiting setting of the locking plate on the locking component, the two split sealing covers can be firmly locked under the premise of large-amplitude vibration of the roller frame, improving the sealing effect while avoiding the risk of bolt detachment that may occur in the traditional bolt connection method. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0014] Figure 1 is a schematic three-dimensional structure diagram of an embodiment of the present utility model.

[0015] Figure 2 is a split view of the first sealing cover and the second sealing cover of an embodiment of the present utility model.

[0016] Figure 3 is a side view of an embodiment of the present utility model.

[0017] Figure 4 is a schematic structural diagram of the sealing component of an embodiment of the present utility model.

[0018] Figure 5 is Figure 4Enlarged view of part A in the figure.

[0019] Figure 6 Schematic cross-sectional view of the locking component according to an embodiment of the present invention.

[0020] In the figure: 1, grinding roller; 11, roller shaft; 12, roller body; 2, rotating shaft; 3, sealing component; 31, first sealing cover; 311, positioning block; 312, positioning hole; 32, second sealing cover; 321, mounting block; 322, positioning rod; 323, rotating groove; 324, limiting groove; 4, locking component; 41, locking plate; 42, rotating rod; 421, limiting block; 43, receiving groove; 44, spring groove; 45, return spring. Detailed implementation manners

[0021] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0022] Please refer to Figures 1-6 。

[0023] The raw material grinding roller sealing structure of the present invention that is convenient for maintenance includes a grinding roller 1. The grinding roller 1 includes a roller body 12 and two roller shafts 11 respectively fixedly arranged at both ends of the roller body 12. A rotating shaft 2 is rotatably connected to the roller shaft 11, and a sealing component 3 is sleeved on the rotating shaft 2. The sealing component 3 includes a first sealing cover 31 and a second sealing cover 32 sleeved on the rotating shaft 2. The first sealing cover 31 and the second sealing cover 32 are used to seal the rotating shaft 2 after installation. Positioning blocks 311 are fixedly installed at the top and bottom of the first sealing cover 31, and positioning holes 312 are opened in the positioning blocks 311. Mounting blocks 321 are fixedly installed at the top and bottom of the second sealing cover 32, and positioning rods 322 are fixedly installed on the mounting blocks 321. The size of the positioning rod 322 is adapted to the size of the positioning hole 312, and a locking component 4 for locking the first sealing cover 31 and the second sealing cover 32 after installation is arranged on the positioning rod 322.

[0024] That is to say, during installation, the first sealing cover 31 is sleeved on the rotating shaft 2, and then the positioning rod 322 on the second sealing cover 32 is aligned with the positioning hole 312 and inserted to complete the docking of the first sealing cover 31 and the second sealing cover 32.

[0025] In addition, the locking member 4 includes a plurality of locking plates 41 rotatably mounted on the positioning rod 322. The positioning rod 322 is provided with a receiving groove 43 for receiving the locking plates 41 through the positioning holes 312. One end of the locking plate 41 is fixedly installed with a rotating rod 42. The positioning rod 322 is provided with rotating grooves 323 at both ends of the receiving groove 43, and the rotating rod 42 is rotatably mounted in the corresponding rotating grooves 323. A spring groove 44 is provided in the receiving groove 43, and a reset spring 45 is fixedly installed on the inner bottom wall surface of the spring groove 44. One end of the reset spring 45 is fixed on the inner bottom wall surface of the spring groove 44, and the other end of the reset spring 45 is fixedly installed at the end of the locking plate 41 away from the rotating rod 42.

[0026] It should be noted that the locking plate 41 is in the Figure 6 state shown in the figure. When the positioning rod 322 is inserted into the positioning hole 312, the locking plate 41 rotates under the limiting action of the positioning hole 312 and compresses the reset spring 45. When the locking plate 41 passes over the positioning hole 312, the movable end of the locking plate 41 is reset to the initial state under the reset action of the reset spring 45. At this time, the locking plate 41 limits and fixes the first sealing cover 31 and the second sealing cover 32.

[0027] Furthermore, a limiting block 421 is fixedly installed on the rotating rod 42, and a limiting groove 324 for limiting the limiting block 421 is provided inside the rotating groove 323. The limiting block 421 is used to limit the locking plate 41 to prevent the locking plate 41 from rotating in the reverse direction after being locked. When the locking plate 41 is in the initial state, the limiting block 421 just abuts against the bottom groove surface of the limiting groove 324.

[0028] That is to say, the limiting block 421 and the limiting groove 324 enable the locking plate 41 to only move along the rotating rod 42 towards the inside of the receiving groove 43. The direction movement of the locking plate 41 is restricted by the limiting block 421 and the limiting groove 324. Such a setting is to ensure that after the locking member 4 locks the first sealing cover 31 and the second sealing cover 32, that is, after the locking plate 41 passes over the positioning hole 312, at this time, the locking plate 41 cannot rotate in the reverse direction, ensuring that the locking plate 41 can firmly abut against the positioning block 311 and guaranteeing the sealing effect of the device.

[0029] When using this device, align the positioning rod 322 and insert it into the positioning hole 312. The locking member 4 can complete the locking under the cooperation of the locking plate 41 and the positioning hole 312, greatly improving the convenience during the installation of the device. When disassembling, press down on the locking plate 41 and pull out the positioning rod 322.

[0030] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. A seal structure for a raw material grinding roller that is convenient for maintenance, comprising a grinding roller (1), characterized in that: The grinding roller (1) includes a roller body (12) and two roller shafts (11) respectively and fixedly arranged at both ends of the roller body (12). A rotating shaft (2) is rotatably connected to the roller shaft (11). A sealing member (3) is sleeved on the rotating shaft (2). The sealing member (3) includes a first sealing cover (31) and a second sealing cover (32) sleeved on the rotating shaft (2). The first sealing cover (31) and the second sealing cover (32) are used to seal the rotating shaft (2) after installation. Positioning blocks (311) are fixedly installed at the top and bottom of the first sealing cover (31). Positioning holes (312) are formed in the positioning blocks (311). Installation blocks (321) are fixedly installed at the top and bottom of the second sealing cover (32). Positioning rods (322) are fixedly installed on the installation blocks (321). The size of the positioning rod (322) is adapted to the size of the positioning hole (312). A locking member (4) is arranged on the positioning rod (322) for locking the first sealing cover (31) and the second sealing cover (32) after installation.

2. The raw material grinding roller sealing structure according to claim 1, characterized in that: The locking member (4) includes a plurality of locking plates (41) rotatably installed on the positioning rod (322). A receiving groove (43) for receiving the locking plate (41) through the positioning hole (312) is formed in the positioning rod (322).

3. The raw material mill roller sealing structure according to claim 2, characterized in that: A rotating rod (42) is fixedly installed at one end of the locking plate (41). Rotating grooves (323) are formed at both ends of the receiving groove (43) on the positioning rod (322). The rotating rod (42) is rotatably installed in the corresponding rotating groove (323).

4. The raw material grinding roll sealing structure according to claim 3, characterized in that: A spring groove (44) is formed in the receiving groove (43). A return spring (45) is fixedly installed on the inner bottom wall surface of the spring groove (44). One end of the return spring (45) is fixed on the inner bottom wall surface of the spring groove (44), and the other end of the return spring (45) is fixedly installed at the end of the locking plate (41) away from the rotating rod (42).

5. The raw material mill roller sealing structure according to claim 4, characterized in that: A limiting block (421) is fixedly installed on the rotating rod (42). A limiting groove (324) for limiting the limiting block (421) is formed inside the rotating groove (323). The limiting block (421) is used to limit the locking plate (41) to prevent the locking plate (41) from rotating in the reverse direction after locking.

6. The raw material mill roller sealing structure according to claim 5, characterized in that: When the locking plate (41) is in the initial state, the limiting block (421) just abuts against the bottom groove surface of the limiting groove (324).

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