Traction roller shaft seal with saw blade for cutting

Abstract

The utility model discloses a band saw blade cutting traction roll shaft seal which comprises a mounting plate, a first shaft seal and a second shaft seal, the mounting plate is used for mounting a traction roll, the traction roll comprises a roll body and a roll shaft, the roll shaft is rotatably connected with the mounting plate through a bearing (7), the roll shaft penetrates through the mounting plate, and the roll body and the mounting plate are arranged at an interval. The first shaft seal is fixedly mounted on the side, away from the roller body, of the mounting plate, the second shaft seal is fixedly mounted on the side, close to the roller body, of the mounting plate, the first shaft seal seals the side, away from the roller body, of the bearing, the second shaft seal comprises a second housing and a rubber ring, and the roller shaft penetrates through the second housing and the rubber ring to abut against the peripheral side face of the roller shaft. The two ends of the bearing are sealed through the first shaft seal and the second shaft seal, the side close to the roller body is sealed through the rubber ring, the first shaft seal and the second shaft seal are filled with lubricating grease for lubrication, and chippings can be prevented from entering the bearing.

Description

Technical Field

[0001] This utility model relates to the technical field of band saw blade traction devices, and more specifically, to a band saw blade cutting traction roller shaft seal. Background Technology

[0002] In the existing production process, band saw blades are made by cutting teeth from steel strips. During the cutting process, both the front and rear ends of the cut need to be pulled. The existing traction device uses two pressure rollers arranged vertically to press and pull the blades. Since the two ends of the pressure rollers are connected by bearings, the band saw blade easily generates debris during the cutting process. This debris splashes into the bearings, and the grease inside the bearings adheres to the debris, causing wear on the bearings and seriously affecting their lifespan. Therefore, a technical solution is needed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art, prevent debris from entering the bearing, and provide a band saw blade cutting traction roller shaft seal.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a shaft seal for a band saw blade cutting traction roller, including a mounting plate, a first shaft seal, and a second shaft seal. The mounting plate is used to mount the traction roller, which includes a roller body and a roller shaft. The roller shaft is rotatably connected to the mounting plate via a bearing and passes through the mounting plate. The roller body and the mounting plate are spaced apart. The first shaft seal is fixedly mounted on the side of the mounting plate away from the roller body, and the second shaft seal is fixedly mounted on the side of the mounting plate close to the roller body. The first shaft seal closes the side of the bearing away from the roller body. The second shaft seal includes a second cover and a rubber ring. The roller shaft passes through the second cover, and the rubber ring abuts against the circumferential surface of the roller shaft.

[0006] Furthermore, the rubber ring is installed on the second cover, and the rubber ring is at least partially located inside the second cover. The second cover has an annular groove, and the rubber ring has an annular plate that is engaged in the annular groove.

[0007] Furthermore, the ring plate is provided with a plurality of limiting holes, which are distributed in a ring shape, and the second cover is provided with a limiting block corresponding to the limiting holes, the limiting block passing through the limiting holes.

[0008] Furthermore, the roller passes through the rubber ring, which has multiple ring teeth arranged along the axial direction of the rubber ring. The ring teeth are located on the side of the rubber ring facing the roller, and a temporary storage groove is formed between two adjacent ring teeth.

[0009] Furthermore, the ring tooth includes a blocking surface and a supporting surface. The blocking surface is close to the roller body and is perpendicular to the roller shaft. The supporting surface is inclined, with one end of the supporting surface near the roller shaft inclined toward the roller body.

[0010] Furthermore, the mounting plate is provided with mounting holes that extend through both sides of the mounting plate. The bearing is installed in the mounting holes. The mounting plate is provided with bosses located on both sides of the mounting plate and on the outer periphery of the mounting holes. The first shaft seal and the bosses are sealed together by a sealing ring, and the second shaft seal and the bosses are sealed together by a sealing ring.

[0011] Furthermore, the first shaft seal includes a first cover, a fixing plate, and an oil injection valve. The fixing plate is fixedly installed on the mounting plate, the first cover is provided with an oil injection hole, and the oil injection valve is installed in the oil injection hole.

[0012] Furthermore, the oil injection valve includes a valve core, and the valve core has a closed port in the middle, which is normally closed.

[0013] The beneficial effects of this utility model are:

[0014] This invention seals both ends of the bearing with a first shaft seal and a second shaft seal, and seals the side near the roller body with a rubber ring. The first and second shaft seals are filled with grease to lubricate the bearing. The second shaft seal seals the connection between the roller shafts with a rubber ring. The temporary storage groove between the ring teeth in the rubber ring blocks debris, thus preventing debris from entering the bearing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of one embodiment.

[0016] Figure 2 This is a cross-sectional view of this embodiment.

[0017] Figure 3 This is a partial cross-sectional view of this embodiment.

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0019] Reference numerals: 1. Mounting plate; 11. Mounting hole; 111. Boss; 2. First shaft seal; 21. First cover; 211. Oil injection hole; 22. Fixing plate; 3. Second shaft seal; 31. Second cover; 311. Annular groove; 312. Limiting block; 32. Rubber ring; 321. Ring plate; 322. Limiting hole; 323. Ring tooth; 3231. Blocking surface; 3232. Supporting surface; 324. Temporary storage groove; 4. Traction roller; 41. Roller body; 42. Roller shaft; 5. Oil injection valve; 51. Valve core; 52. Closed end; 6. Sealing ring; 7. Bearing. Detailed Implementation

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

[0021] like Figures 1-4 As shown, this embodiment discloses a band saw blade cutting traction roller shaft seal, used to seal the shaft bearing 7 of the traction roller 4 during band saw blade transmission. The band saw blade cutting traction roller shaft seal includes a mounting plate 1, a first shaft seal 2, and a second shaft seal 3. The mounting plate 1 is used to mount the traction roller 4, which includes a roller body 41 and a roller shaft 42. The mounting plate 1 is provided with mounting holes 11, which penetrate both sides of the mounting plate 1. The bearing 7 is installed in the mounting holes 11, and the roller shaft 42 passes through and is connected to the bearing 7. The roller shaft 42 is rotatably connected to the mounting plate 1 through the bearing 7. The end of the roller shaft 42 away from the roller body 41 extends out of the bearing 7 and penetrates the mounting plate 1. The roller body 41 and the mounting plate 1 are spaced apart, and the side of the roller body 41 is spaced apart from the mounting plate 1 to provide space for the installation of the second shaft seal 3.

[0022] The first shaft seal 2 is fixedly installed on the side of the mounting plate 1 away from the roller body 41. The first shaft seal 2 seals the side of the bearing 7 away from the roller body 41. The first shaft seal 2 includes a first cover 21, a fixing plate 22, and an oil injection valve 5. The fixing plate 22 is fixedly installed on the mounting plate 1 by screws. The first cover 21 can cover the part of the roller shaft 42 that extends out of the mounting plate 1 and can protect the side of the bearing 7 away from the roller body 41, preventing debris from entering the bearing 7 from the outside of the mounting plate 1. The mounting plate 1 is provided with a boss 111, which is located on both sides of the mounting plate 1. The boss 111 is annular and located on the outer periphery of the mounting hole 11. The first shaft seal 2 and the boss 111 are sealed by a sealing ring 6. A stop is formed between the first cover 21 and the boss 111. The sealing ring 6 is located at the stop formed between the first cover 21 and the boss 111 to prevent grease leakage.

[0023] The second shaft seal 3 is fixedly installed on the side of the mounting plate 1 near the roller body 41. The second shaft seal 3 and the boss 111 are sealed by a sealing ring 6. The second shaft seal 3 includes a second cover 31 and a rubber ring 32. The second cover 31 and the boss 111 form a stop. The roller shaft 42 passes through the second cover 31. The rubber ring 32 abuts against the peripheral side of the roller shaft 42. A rotational seal is formed between the rubber ring 32 and the roller shaft 42. The rubber ring 32 can block debris inside the mounting plate 1.

[0024] The rubber ring 32 is installed on the second cover 31, and at least part of the rubber ring 32 is located inside the second cover 31. The second cover 31 is provided with an annular groove 311, and the rubber ring 32 is provided with an annular plate 321. The annular plate 321 is inserted into the annular groove 311. The rubber ring 32 can be elastically deformed and inserted into the annular groove 311 for installation and positioning. The annular plate 321 is provided with multiple positioning holes 322, which are distributed in a ring. The second cover 31 is provided with a positioning block 312 corresponding to the positioning hole 322. The positioning block 312 passes through the positioning hole 322. The positioning block 312 cooperates with the positioning hole 322 to fix the rotation direction of the rubber ring 32 and prevent the rubber ring 32 from rotating together with the roller shaft 42.

[0025] The roller 42 passes through the rubber ring 32, which has multiple ring teeth 323 arranged along the axial direction of the rubber ring 32. The ring teeth 323 are located on the side of the rubber ring 32 facing the roller 42. A temporary storage groove 324 is formed between two adjacent ring teeth 323. The ring teeth 323 can reduce the contact area between the rubber ring 32 and the roller 42, and reduce the friction between the rubber ring 32 and the roller 42. The temporary storage groove 324 can temporarily store debris that accidentally enters between the rubber ring 32 and the roller 42, preventing debris from entering the second cover 31.

[0026] The ring tooth 323 includes a blocking surface 3231 and a supporting surface 3232. The blocking surface 3231 is close to the roller body 41 and is perpendicular to the roller shaft 42. The supporting surface 3232 is inclined and the end of the supporting surface 3232 close to the roller shaft 42 is inclined towards the roller body 41. The cross section of the ring tooth 323 is triangular. The supporting surface 3232 can support the blocking surface 3231 and prevent the ring tooth 323 from deforming too much inward, causing debris to enter.

[0027] The internal space enclosed by the first shaft seal 2 and the second shaft seal 3 is filled with grease. The first cover 21 is provided with an oil injection hole 211. The oil injection valve 5 is installed in the oil injection hole 211. The oil injection valve 5 has a one-way valve structure. The oil injection valve 5 includes a valve core 51. The valve core 51 has a closed port 52 in the middle. The closed port 52 is normally closed. The oil injection valve 5 replenishes the internal space of the first shaft seal 2 and the second shaft seal 3 with grease. After the internal space is filled with grease, the grease will enter the temporary storage tank 324 under pressure, so that the temporary storage tank 324 is also filled with grease. The debris entering the temporary storage tank 324 will be adhered by the grease and will not enter the bearing 7.

[0028] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A band saw blade cutting pull roller shaft seal, characterized in that, The assembly includes a mounting plate (1), a first shaft seal (2), and a second shaft seal (3). The mounting plate (1) is used to mount a traction roller (4). The traction roller (4) includes a roller body (41) and a roller shaft (42). The roller shaft (42) is rotatably connected to the mounting plate (1) via a bearing (7). The roller shaft (42) passes through the mounting plate (1). The roller body (41) is spaced apart from the mounting plate (1). The first shaft seal (2) is fixedly installed on the side of the mounting plate (1) away from the roller body (41). The second shaft seal (3) is fixedly installed on the side of the mounting plate (1) close to the roller body (41). The first shaft seal (2) closes the side of the bearing (7) away from the roller body (41). The second shaft seal (3) includes a second cover (31) and a rubber ring (32). The roller shaft (42) passes through the second cover (31). The rubber ring (32) abuts against the circumferential side of the roller shaft (42).

2. A band saw blade cutting pull-stud seal according to claim 1, wherein, The rubber ring (32) is installed on the second cover (31). The rubber ring (32) is at least partially located inside the second cover (31). The second cover (31) is provided with an annular groove (311). The rubber ring (32) is provided with an annular plate (321). The annular plate (321) is inserted into the annular groove (311).

3. A band saw blade cutting pull-stud seal according to claim 2, wherein, The ring plate (321) is provided with a plurality of limiting holes (322), which are arranged in a ring shape. The second cover (31) is provided with a limiting block (312) corresponding to the limiting hole (322), and the limiting block (312) passes through the limiting hole (322).

4. A band saw blade cutting pull-stud seal according to claim 1, wherein, The roller (42) passes through the rubber ring (32), which has a plurality of ring teeth (323). The plurality of ring teeth (323) are arranged along the axial direction of the rubber ring (32). The ring teeth (323) are located on the side of the rubber ring (32) facing the roller (42), and a temporary storage groove (324) is formed between two adjacent ring teeth (323).

5. A band saw blade cutting pull-stud seal according to claim 4, wherein, The ring tooth (323) includes a blocking surface (3231) and a supporting surface (3232). The blocking surface (3231) is close to the roller body (41) and is perpendicular to the roller shaft (42). The supporting surface (3232) is inclined and one end of the supporting surface (3232) near the roller shaft (42) is inclined toward the roller body (41).

6. A band saw blade cutting pull-stud seal according to claim 1, wherein, The mounting plate (1) is provided with mounting holes (11), which penetrate both sides of the mounting plate (1). The bearing (7) is installed in the mounting holes (11). The mounting plate (1) is provided with bosses (111), which are located on both sides of the mounting plate (1) and on the outer periphery of the mounting holes (11). The first shaft seal (2) and the bosses (111) are sealed by a sealing ring (6). The second shaft seal (3) and the bosses (111) are sealed by a sealing ring (6).

7. A band saw blade cutting pull-stud seal according to claim 1 wherein, The first shaft seal (2) includes a first cover (21), a fixing plate (22), and an oil injection valve (5). The fixing plate (22) is fixedly installed on the mounting plate (1). The first cover (21) is provided with an oil injection hole (211), and the oil injection valve (5) is installed in the oil injection hole (211).

8. A band saw blade cutting pull-stud seal according to claim 7, wherein, The oil injection valve (5) includes a valve core (51), and the valve core (51) has a closed port (52) in the middle, which is normally closed.

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