A drainage scraper grinder spindle

Abstract

The utility model discloses a drainage scraper grinder spindle, including a housing, a bearing, a shaft core, a front cover, a rear cover, a sealing ring, and a passive wiper ring. A group of coaxially aligned bearings are arranged in the housing, a shaft core is arranged in the bearing, a front cover and a rear cover are arranged at both ends of the housing, and both ends of the shaft core pass through the front cover and the rear cover. A sealing ring is sleeved on the circumference of the shaft core, and the sealing ring and the front cover are spliced ​​with each other. The outer side of the splicing between the sealing ring and the front cover is covered with a passive wiper ring. Through the above method, the utility model provides a drainage scraper grinder spindle, a wiper ring is added to the shaft core, and the power is provided by compressed gas. High-frequency sweeping is achieved under the action of its own elasticity, thereby blocking the formation of a water film on the surface of the front cover that causes water seepage problems, thereby effectively improving the sealing performance of the spindle.

Description

Technical Field

[0001] The utility model relates to the field of grinding machine spindles, in particular to a drainage sweeping grinding machine spindle. Background Art

[0002] A cutter head is installed at the front end of the grinder spindle. Water must be involved in the processing of the cutter head. Since there is a water seepage gap at the core of the grinder spindle, water can easily penetrate into the spindle. Most of the water is isolated outside the joint between the front cover and the sealing ring, and a small amount will penetrate into the front cover along the joint and reach the core. The existing technology usually uses a water storage tank on the outer wall of the core to intercept the seepage water. During the high-speed operation of the grinder spindle, most of the water will form a layer of water film on the outer surface of the front cover. The water film will not be immediately thrown away by the high-speed rotation. After the water accumulates, it will further penetrate into the joint. Utility Model Content

[0003] The main technical problem solved by the utility model is to provide a drainage sweeping grinder spindle, by adding a wiper ring on the shaft core, which is powered by compressed gas and realizes high-frequency sweeping under the action of its own elasticity, thereby blocking the formation of a water film on the surface of the front cover that causes water seepage problems, thereby effectively improving the sealing performance of the spindle.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a drainage sweeping and scraping grinder spindle, including a shell, a bearing, a shaft core, a front cover, a rear cover, a sealing ring, and a passive wiper ring. A group of coaxially aligned bearings are arranged in the shell, and a shaft core is arranged in the bearing. Front covers and rear covers are arranged at both ends of the shell, and both ends of the shaft core pass through the front cover and the rear cover. A sealing ring is sleeved on the circumferential surface of the shaft core, and the sealing ring and the front cover are spliced ​​with each other. The passive wiper ring is covered on the outer side of the joint between the sealing ring and the front cover.

[0005] In a preferred embodiment of the utility model, the passive wiper ring is composed of an integrally formed O-ring and a thin wing, the thin wing is arranged on the outer edge of the O-ring, and the thin wing elastically abuts against the outer edge of the joint.

[0006] In a preferred embodiment of the utility model, the passive wiper ring is clamped on a clamping ring, and the clamping ring is coaxially installed on the shaft core.

[0007] In a preferred embodiment of the utility model, a compressed gas interface is provided on the shell, and an air path connecting the compressed gas interface and leading to the inner edge of the joint is opened on the shell and the front cover.

[0008] In a preferred embodiment of the present invention, an obtuse angle is formed between the thin wing and the O-ring.

[0009] The beneficial effect of the utility model is that a drainage sweeping grinder spindle provided by the utility model adds a scraper ring on the shaft core, which is powered by compressed gas and realizes high-frequency sweeping under the action of its own elasticity, thereby blocking the formation of a water film on the surface of the front cover that causes water seepage problems, thereby effectively improving the sealing performance of the spindle. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0011] Figure 1 This is the overall structural diagram of the main shaft of a drainage scraper grinder of the utility model;

[0012] Figure 2 It is a partially enlarged structural diagram of a main shaft of a drainage sweeping and scraping grinder of the utility model. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] like Figure 1-2 As shown, the embodiment of the utility model includes:

[0015] A drainage sweeping and scraping grinding machine spindle comprises a shell 1, a bearing 2, a shaft core 3, a front cover 4, a rear cover 5, a sealing ring 6, and a passive wiper ring 7. A group of coaxially aligned bearings 2 are arranged in the shell 1, and the shaft core 3 is arranged in the bearing 2. The front cover 4 and the rear cover 5 are arranged at both ends of the shell 1, and the two ends of the shaft core 3 pass through the front cover 4 and the rear cover 5. The circumferential surface of the shaft core 3 is sleeved with a sealing ring 6, and the sealing ring 6 and the front cover 4 are spliced ​​with each other. The outer side of the splicing gap between the sealing ring 6 and the front cover 4 is covered with a passive wiper ring 7.

[0016] The passive wiper ring 7 is composed of an integrally formed O-ring 8 and a thin wing 9. The thin wing 9 is arranged on the outer edge of the O-ring 8, and the thin wing 9 elastically abuts against the outer edge of the joint.

[0017] Furthermore, the passive wiper ring 7 is clamped on a clamping ring 10 , and the clamping ring 10 is coaxially mounted on the shaft core 3 .

[0018] Furthermore, a compressed air interface 11 is provided on the shell 1, and an air path 12 connecting the compressed air interface 11 and leading to the inner edge of the joint is opened on the shell 1 and the front cover 4.

[0019] Furthermore, an obtuse angle is formed between the thin wing 9 and the O-ring 8 .

[0020] During the processing of the grinding machine spindle, a layer of water film will form on the surface of the front cover 4. This product adds an O-ring 8 at the joint. The thin wing 9 on the O-ring 8 can prevent moisture from accumulating and penetrating into the joint. During the high-speed rotation of the shaft core 3, the thin wing 9 will resonate and vibrate. During the shaking process, the thin wing 9 can block the formation of the water film and inhibit the accumulation of moisture. In order to further increase the amplitude and vibration frequency of the thin wing 9, this product also adds an air path 12 on the inner side of the joint. The air path 12 is connected to the compressed air from the compressed air interface 11. The compressed air blows out the compressed air to the outside of the joint. The compressed air drives the thin wing 9 to vibrate at a high frequency, thereby keeping the water film blocked in real time and inhibiting the occurrence of water seepage.

[0021] In summary, the utility model provides a drainage sweeping and scraping grinder spindle, which adds a wiper ring 7 to the shaft core 3, is powered by compressed gas, and realizes high-frequency sweeping under the action of its own elasticity, thereby blocking the formation of a water film on the surface of the front cover 4 that causes water seepage problems, thereby effectively improving the sealing performance of the spindle.

[0022] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drainage scraper grinder spindle, characterized in that: It includes a shell, a bearing, a shaft core, a front cover, a rear cover, a sealing ring, and a passive wiper ring. A group of coaxially aligned bearings are arranged in the shell, and a shaft core is arranged in the bearing. Front covers and rear covers are arranged at both ends of the shell, and both ends of the shaft core pass through the front cover and the rear cover. A sealing ring is sleeved on the circumference of the shaft core, and the sealing ring and the front cover are spliced ​​with each other. The passive wiper ring is covered on the outer side of the joint between the sealing ring and the front cover.

2. The drainage scraper grinder spindle according to claim 1, characterized in that: The passive wiper ring is composed of an integrally formed O-ring and a thin wing, wherein the thin wing is arranged on the outer edge of the O-ring and elastically abuts against the outer edge of the joint.

3. The main shaft of the drainage scraper grinder according to claim 1, characterized in that: The passive wiper ring is clamped on a clamping ring, and the clamping ring is coaxially installed on the shaft core.

4. The main shaft of the drainage scraper grinder according to claim 1, characterized in that: The shell is provided with a compressed gas interface, and the shell and the front cover are provided with an air path connected with the compressed gas interface and leading to the inner edge of the joint.

5. The main shaft of the drainage scraper grinder according to claim 2, characterized in that: An obtuse angle is formed between the thin wing and the O-ring.

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