Sealing assembly for wire cutting device

Abstract

The utility model provides a sealing assembly for a wire cutting device, and relates to the technical field of cutting equipment. The sealing assembly for the wire cutting device comprises a shaft head, a bearing, a bearing seat, a water retaining cover, a first sealing piece and a second sealing piece. The bearing is sleeved outside the shaft head; the bearing seat is mounted outside the bearing; the shaft sleeve is sleeved with the first sealing piece, the first sealing piece is adjacent to the bearing, the first sealing piece is located between the shaft head and the bearing seat, the first sealing piece and the bearing seat jointly form a labyrinth sealing structure, and the labyrinth sealing structure is used for being filled with a lubricating agent; and the second sealing element sleeves the shaft head and is positioned on one side or two sides of the bearing. Protection is formed through the first sealing piece and the second sealing piece, it can be effectively guaranteed that mechanical parts in the sealing assembly are not affected by dust and water flow, cleanliness and sufficient lubrication are kept, the rusting situation is avoided, and therefore the service life of the bearing is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting equipment technical field, specifically, relate to a kind of sealing assembly for wire cutting device. BACKGROUND

[0002] In the natural stone processing process, rough cutting is a crucial process. Currently, the industry usually adopts diamond wire saw technology for cutting, which realizes high-efficiency cutting of natural stone rough by driving a diamond wire with a diameter less than 1 millimeter to run at high speed through a roller. During the rough cutting process, sufficient water must be ensured to cool the diamond wire and flush the stone powder generated by cutting.

[0003] However, if protective measures are not in place, the bearings in the bearing cavity may be damaged by water ingress if the roller is in a water mist environment for a long time. If not maintained in time, the bearings may rust and jam, causing equipment failure. SUMMARY

[0004] The utility model provides a kind of sealing assembly for wire cutting device, which effectively guarantees the sealing performance of bearings, avoids the influence of dust and moisture on bearings, and thus improves the service life of the sealing assembly for wire cutting device.

[0005] The embodiments of the utility model can be implemented as follows:

[0006] In a first aspect, the utility model provides a sealing assembly for wire cutting device, comprising:

[0007] A shaft head is used to install bearings;

[0008] A bearing seat is provided on the shaft head and is used to install outside the bearings;

[0009] A first sealing element is sleeved on the shaft head and adjacent to the bearings, and the first sealing element is located between the shaft head and the bearing seat. The first sealing element and the bearing seat form a labyrinth seal structure together, and the labyrinth seal structure is used to fill lubricant;

[0010] A second sealing element is sleeved on the shaft head and located on one side or both sides of the bearings.

[0011] In an optional embodiment, the first sealing element is provided with a plurality of first protrusions, adjacent two first protrusions form a first ring groove, the bearing seat is provided with a plurality of second protrusions, adjacent two second protrusions form a second ring groove, at least part of the first protrusions is embedded in the second ring groove, and at least part of the second protrusions is embedded in the first ring groove to form the labyrinth seal structure.

[0012] In an optional embodiment, the shaft head is interference fit with the first seal.

[0013] In an optional embodiment, the sealing assembly for the wire cutting device further comprises a first sealing ring, which is arranged between the shaft head and the first seal.

[0014] In an optional embodiment, the second seal comprises a first skeleton oil seal, which is arranged between the first seal and the bearing seat, and the first skeleton oil seal is arranged adjacent to the bearing.

[0015] In an optional embodiment, the sealing assembly for the wire cutting device further comprises a water baffle and / or an end cover, the water baffle is arranged on the shaft head and located on one side of the bearing seat;

[0016] The end cover is arranged on the bearing seat, and the end cover is located on a side of the bearing seat away from the first seal.

[0017] In an optional embodiment, the sealing assembly for the wire cutting device further comprises a second sealing ring, which is arranged between the bearing seat and the end cover.

[0018] In an optional embodiment, the second seal comprises a second skeleton oil seal, which is arranged between the end cover and the shaft head.

[0019] In an optional embodiment, the first seal, the bearing seat, the second seal and the end cover form a cavity together with the shaft head, and the bearing sleeve is arranged on the shaft head and located in the cavity.

[0020] In an optional embodiment, the water baffle is provided with a drain hole, and the drain hole is located below the horizontal axis of the shaft head.

[0021] The sealing assembly for the wire cutting device has the following advantages: the first seal is arranged on the bearing, the first seal and the bearing seat form a labyrinth seal structure together, and the labyrinth seal structure is filled with lubricant, which can prevent impurities such as dust and water flow from entering the bearing, and can also prevent the lubricant in the bearing from leaking due to the failure of the second seal; the second seal is arranged on at least one side of the bearing, which further improves the sealing performance of the bearing. Therefore, the protection formed by the first seal and the second seal can effectively ensure that the mechanical parts inside the wire cutting device are not affected by dust and water flow, and remain clean and well-lubricated, thereby avoiding rust and effectively prolonging the service life of the bearing. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, based on the embodiments in the present application, all other embodiments obtained without creative labor are within the scope of protection of the present application.

[0023] Figure 1 The sectional view of the sealing assembly structure for the wire cutting device provided by the embodiments of the present application is shown in the figure.

[0024] Figure 2 The sectional view of the sealing assembly structure for the wire cutting device provided by the embodiments of the present application is shown in the figure. Figure 1 The enlarged structure schematic diagram of the A part in the middle is shown in the figure.

[0025] Figure 3 The structure schematic diagram of the water baffle is shown in the figure.

[0026] Figure 4 The structure schematic diagram of the first sealing member is shown in the figure.

[0027] Icon: 10-sealing assembly for wire cutting device; 100-shaft head; 200-bearing; 300-bearing seat; 310-second protruding part; 320-second ring groove; 400-water baffle; 410-drainage hole; 500-first sealing member; 510-first protruding part; 520-first ring groove; 600-second sealing member; 610-first skeleton oil seal; 620-second skeleton oil seal; 700-first sealing ring; 800-end cover; 900-second sealing ring. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0030] It should be noted that like reference numerals and letters refer to like items in the several views, and that no further definitions and explanations of defined items are needed in the subsequent drawings once an item is defined in one drawing.

[0031] In the description of the utility model, it needs to be explained that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly used when the utility model product is used, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0032] In addition, if the terms "first", "second" and the like are used only for differentiation in description, they cannot be understood as indicating or implying relative importance.

[0033] It should be noted that the features in the embodiments of the utility model can be combined with each other without conflict.

[0034] In the natural stone processing process, rough cutting is a crucial process. Currently, the industry usually adopts diamond wire saw technology for cutting. This technology drives a diamond wire with a diameter less than 1 mm to run at high speed through a roller, thereby achieving efficient cutting of natural stone rough materials. During the rough cutting process, sufficient water must be ensured to cool the diamond wire and flush the stone powder generated by cutting.

[0035] However, the roller is in a water mist environment for a long time, and if protective measures are not in place, the bearings in the bearing cavity may be damaged due to water ingress. If maintenance is not timely, the bearings may rust and jam, thereby causing equipment failure. Therefore, the support bearing cavities at both ends of the roller must have excellent sealing performance to ensure that all components inside the bearing cavity are not affected by dust and moisture, thereby ensuring the normal operation of the equipment.

[0036] Based on the problems in the prior art, please refer to Figures 1 to 4 The utility model embodiment provides a sealing assembly 10 for a wire cutting device, which is installed on the wire cutting device and can effectively ensure the sealing performance of the bearing 200, avoid the bearing 200 from being affected by dust and moisture, and thereby improve the service life of the bearing.

[0037] In detail, the sealing assembly 10 for the wire cutting device includes a shaft head 100, a bearing 200, a bearing seat 300, a water blocking cover 400, a first sealing member 500, and a second sealing member 600.

[0038] The bearing 200 is sleeved on the shaft head 100; the bearing seat 300 is installed outside the bearing 200; the water baffle 400 is arranged on the shaft head 100 and located at one side of the bearing seat 300; the first sealing element 500 is sleeved on the shaft head 100 and adjacent to the bearing 200, and the first sealing element 500 is located between the shaft head 100 and the bearing seat 300; the first sealing element 500 and the bearing seat 300 jointly form a labyrinth sealing structure, and the labyrinth sealing structure is used for filling the lubricant; and the second sealing element 600 is sleeved on the shaft head 100 and located at one side or both sides of the bearing 200.

[0039] In the embodiment, the water baffle 400 is arranged on the shaft head 100, so that the water mist or even water flow is blocked, and a first layer of protection is formed; the first sealing element 500 is arranged on the side of the bearing 200 close to the water baffle 400, and the first sealing element 500 and the bearing seat 300 jointly form a labyrinth sealing structure, and the labyrinth sealing structure is filled with the lubricant, so that the impurities such as dust and water flow are prevented from entering the bearing 200, and the lubricant in the bearing 200 is prevented from leaking due to failure of the second sealing element 600, and a second layer of protection is formed; and the second sealing element 600 is arranged on at least one side of the bearing 200, so that the sealing performance of the bearing 200 is further improved, and a third layer of protection is formed.

[0040] Therefore, the three layers of protection formed by the water baffle 400, the first sealing element 500 and the second sealing element 600 can effectively ensure that the mechanical parts in the sealing assembly 10 for the wire cutting device are not affected by dust and water flow, and are kept clean and lubricated, so that rust is avoided, and the service life of the wire cutting device is effectively prolonged.

[0041] Optionally, the shaft head 100 can be a roller shaft head 100, and of course, in other embodiments of the utility model, the shaft head 100 can also be other types of shaft head 100; the lubricant can be lubricating grease, and of course, it can also be other types of lubricant; and no specific limitation is made herein.

[0042] Further, the water baffle 400 is provided with a drain hole 410, and the drain hole 410 is located below the horizontal axis of the shaft head 100.

[0043] In the embodiment, in the state that the water baffle 400 is installed on the shaft head 100, the water baffle 400 is divided into two parts, i.e., an upper half part above the horizontal axis of the shaft head 100 and a lower half part below the horizontal axis of the shaft head 100; the drain hole 410 is arranged on the lower half part of the water baffle 400, so that even when the water enters the other side of the water baffle 400 through the gap between the water baffle 400 and other parts, the water can be drained in time through the drain hole 410, and the influence of the water vapor on the sealing assembly 10 for the wire cutting device is reduced.

[0044] In the embodiment, the number of the drain hole 410 is one, and the drain hole 410 is located directly below the shaft head 100 when the water baffle 400 is installed on the shaft head 100.

[0045] It can be understood that in other embodiments of the utility model, the number of the drain hole 410 can also be multiple, and the multiple drain holes 410 are arranged equidistantly on the lower half of the water baffle 400.

[0046] Further, the first sealing member 500 is provided with multiple first protruding parts 510, adjacent two first protruding parts 510 form a first annular groove 520, the bearing seat 300 is provided with multiple second protruding parts 310, adjacent two second protruding parts 310 form a second annular groove 320, at least part of the first protruding part 510 is embedded in the second annular groove 320, and at least part of the second protruding part 310 is embedded in the first annular groove 520 to form a labyrinth seal structure.

[0047] In the embodiment, there is a gap between the first sealing member 500 and the bearing seat 300, and the first protruding part 510 on the first sealing member 500 does not completely embed in the corresponding second annular groove 320, and the second protruding part 310 on the bearing seat 300 does not completely embed in the corresponding first annular groove 520, so as to form a labyrinth seal structure between the first sealing member 500 and the bearing seat 300.

[0048] By filling the lubricant into the labyrinth seal structure, not only can the impurities such as dust and water flow be prevented from entering the bearing 200, but also the leakage of the lubricant at the bearing 200 due to the failure of the second sealing member 600 can be prevented.

[0049] Further, the shaft head 100 is in interference fit with the first sealing member 500.

[0050] In the embodiment, the connection between the shaft head 100 and the first sealing member 500 is realized by extrusion and friction force, so as to realize the interference fit, which not only can realize the stable connection between the shaft head 100 and the first sealing member 500, but also can form a very tight seal between the two to prevent dust or ash from entering.

[0051] Further, the sealing assembly 10 for the wire cutting device further comprises a first sealing ring 700, and the first sealing ring 700 is arranged between the shaft head 100 and the first sealing member 500.

[0052] In the embodiment, the first sealing ring 700 is arranged on the interference fit surface between the shaft head 100 and the first sealing member 500, further improving the sealing performance between the shaft head 100 and the first sealing member 500.

[0053] Further, the sealing assembly 10 for the wire cutting device further comprises an end cover 800, and the second sealing member 600 comprises a first skeleton oil seal 610 and a second skeleton oil seal 620.

[0054] The first skeleton oil seal 610 is arranged between the first sealing member 500 and the bearing seat 300, and the first skeleton oil seal 610 is arranged adjacent to the bearing 200.

[0055] In the embodiment, by arranging the first skeleton oil seal 610 between the first sealing member 500 and the bearing seat 300, and arranging the first skeleton oil seal 610 adjacent to the bearing 200, the lubricant applied on the bearing 200 can be sealed by the first skeleton oil seal 610, preventing the lubricant on the bearing 200 from leaking out, and ensuring that the bearing 200 always has clean and sufficient lubricant.

[0056] Further, the second skeleton oil seal 620 is arranged between the end cover 800 and the shaft head 100.

[0057] In the embodiment, the second skeleton oil seal 620 is arranged between the end cover 800 and the shaft head 100, so that the first skeleton oil seal 610 and the second skeleton oil seal 620 are respectively located on both sides of the bearing 200, thereby sealing the lubricant on the bearing 200 in the cavity where the bearing 200 is arranged by the first skeleton oil seal 610 and the second skeleton oil seal 620, so as to ensure that the first sealing member 500 and other mechanical structures are dry, thereby ensuring that the bearing 200 always has sufficient lubricant.

[0058] Further, the end cover 800 is arranged on the bearing seat 300, and the end cover 800 is located on the side of the bearing seat 300 away from the water baffle 400.

[0059] In the embodiment, by arranging the end cover 800 on the side of the bearing seat 300 away from the water baffle 400, the end cover 800 can also play a certain role in dustproof and waterproof, further improving the sealing performance of the sealing assembly 10 for the wire cutting device.

[0060] Further, the sealing assembly 10 for the wire cutting device further comprises a second sealing ring 900, and the second sealing ring 900 is arranged between the bearing seat 300 and the end cover 800.

[0061] In the embodiment, by arranging the second sealing ring 900 between the bearing seat 300 and the end cover 800, the sealing performance of the bearing seat 300 is further improved.

[0062] It should be noted that the end cover 800 and the bearing seat 300 will not move relative to each other, so a static seal is formed between the two, and therefore the second sealing ring 900 is arranged between the end cover 800 and the bearing seat 300 to play a sealing role; the end cover 800 and the shaft head 100 will move relative to each other, so a dynamic seal is formed between the two, and therefore the second skeleton oil seal 620 is arranged between the end cover 800 and the shaft head 100 to play a sealing role.

[0063] Further, the first sealing member 500, the bearing seat 300, the second sealing member 600, and the end cover 800 and the shaft head 100 together form a cavity, and the bearing 200 is sleeved on the shaft head 100 and located in the cavity.

[0064] In the embodiment, the first sealing member 500, the bearing seat 300, the first skeleton oil seal 610, and the second skeleton oil seal 620 and the shaft head 100 have a cavity that just accommodates the bearing 200, and in order to ensure that the bearing 200 can operate stably, a lubricant is usually filled in the cavity, and therefore the first skeleton oil seal 610 and the second skeleton oil seal 620 arranged on both sides of the bearing 200 can seal the lubricant in the cavity, so as to ensure that the lubricant lubricates the bearing 200 at all times, and leakage of the lubricant is avoided to cause failure of the bearing 200.

[0065] In summary, the sealing assembly 10 for the wire cutting device is provided in the embodiment of the utility model, the water screen 400 is arranged on the shaft head 100, water mist or even water flow can be blocked, and a first layer of protection is formed; the first sealing member 500 is arranged on the side of the bearing 200 close to the water screen 400, the first sealing member 500 and the bearing seat 300 form a labyrinth seal structure together, and the labyrinth seal structure is filled with a lubricant, which not only prevents impurities such as dust and water flow from entering the bearing 200, but also prevents leakage of the lubricant at the bearing 200 due to failure of the second sealing member 600, so as to form a second layer of protection; the second sealing member 600 is arranged on at least one side of the bearing 200, the sealing property of the bearing 200 is further improved, and a third layer of protection is formed. Therefore, the three layers of protection formed by the water screen 400, the first sealing member 500, and the second sealing member 600 can effectively ensure that the mechanical parts inside the wire cutting device are not affected by dust and water flow, and are kept clean and lubricated, so as to avoid rust, and the service life of the wire cutting device is effectively improved.

[0066] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A seal assembly (10) for a wire cutting device, characterized in that, The utility model relates to a sealing assembly for wire cutting device, which comprises: a shaft head (100) for mounting a bearing (200); a bearing seat (300) arranged on the shaft head (100) and used for mounting outside the bearing (200); a first sealing member (500) sleeved on the shaft head (100) and adjacent to the bearing (200), and located between the shaft head (100) and the bearing seat (300), the first sealing member (500) and the bearing seat (300) jointly form a labyrinth seal structure for filling lubricant; a second sealing member (600) sleeved on the shaft head (100) and located on one side or both sides of the bearing (200).

2. The seal assembly (10) for a wire cutting device according to claim 1, characterized in that The first sealing member (500) is provided with a plurality of first protrusions (510), and adjacent two first protrusions (510) form a first annular groove (520). The bearing seat (300) is provided with a plurality of second protrusions (310), and adjacent two second protrusions (310) form a second annular groove (320). At least part of the first protrusions (510) is embedded in the second annular groove (320), and at least part of the second protrusions (310) is embedded in the first annular groove (520) to form the labyrinth seal structure.

3. The seal assembly (10) for a wire cutting device of claim 1, wherein, The shaft head (100) and the first sealing member (500) are in interference fit.

4. The seal assembly (10) for a wire cutting device of claim 1, wherein, The sealing assembly (10) for the wire cutting device further comprises a first sealing ring (700) arranged between the shaft head (100) and the first sealing member (500).

5. The seal assembly (10) for a wire cutting device of claim 1, wherein, The second sealing member (600) comprises a first skeleton oil seal (610) arranged between the first sealing member (500) and the bearing seat (300) and adjacent to the bearing (200).

6. The sealing assembly (10) for a wire cutting device according to any one of claims 1-5, characterized in that, The sealing assembly (10) for the wire cutting device further comprises a water baffle (400) and / or an end cover (800), the water baffle (400) is arranged on the shaft head (100) and located on one side of the bearing seat (300); The end cover (800) is arranged on the bearing seat (300), and the end cover (800) is located on the side of the bearing seat (300) away from the first sealing member (500).

7. The seal assembly (10) for a wire cutting device according to claim 6, characterized in that The sealing assembly (10) for the wire cutting device further comprises a second sealing ring (900) arranged between the bearing seat (300) and the end cover (800).

8. The seal assembly (10) for a wire cutting device of claim 6, characterized in that The second sealing member (600) comprises a second skeleton oil seal (620) arranged between the end cover (800) and the shaft head (100).

9. The seal assembly (10) for a wire cutting device of claim 6, wherein, The first seal (500), the bearing seat (300), the second seal (600) and the end cover (800) jointly form a chamber with the shaft head (100), and the bearing (200) is sleeved on the shaft head (100) and located in the chamber.

10. The seal assembly (10) for a wire cutting device of claim 6, wherein, The water baffle (400) is provided with a drain hole (410), and the drain hole (410) is located below the horizontal axis of the shaft head (100).

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