Waterproof air sealing structure of motorized spindle

Abstract

The utility model relates to an electric spindle waterproof air sealing structure which comprises a shell, a front end cover is fixedly installed on the left side of the shell, a rear end cover is fixedly installed on the right side of the shell, a sealing mechanism is arranged in the shell, and a spindle body is installed in the shell. The sealing mechanism comprises a limiting seat, a sealing ring, a buffering rubber pad, a reinforcing plate, a limiting ring, a fastening ring, a gasket and a ceramic plate, and the limiting seat is arranged in the rear end cover. According to the waterproof air sealing structure of the electric spindle, firstly, the limiting seat is clamped into the clamping groove through the limiting block, then the spindle body, the rotor and the stator are placed into the shell, at the moment, the right end of the spindle body can penetrate through the limiting ring to be inserted into the limiting seat, and the spindle body is primarily sealed through the sealing ring; and finally, the front end cover is closed, the insertion block is inserted into the insertion groove, and the front end cover is stably fixed through the fastening bolt.

Description

Technical Field

[0001] The utility model relates to the technical field of electric spindles, in particular to a waterproof air sealing structure of an electric spindle. Background Art

[0002] Electric spindles are widely used in all aspects of mechanical processing. In recent years, with the rapid development of frequency conversion technology, high-speed bearings and high-speed grease technology, new opportunities have been brought to the development of electric spindles.

[0003] For example, the Chinese patent number CN211557029U is a waterproof air sealing structure for an electric spindle. The utility model includes a motor, a shaft, a bearing, an electric spindle, a front small cover, and a front nut. When the compressed air contains a large amount of crystallized water, it will not enter the electric spindle during the air sealing process, which can achieve the air sealing function without damaging the electric spindle. However, during use, the motor drives the spindle to rotate. During the installation process, the spindle is not precisely sealed. After long-term operation, dust and water will enter its interior, affecting the overall use of the spindle. Therefore, a waterproof air sealing structure for an electric spindle is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides an electric spindle waterproof air sealing structure, which has the advantage of good spindle sealing. It solves the problem that the motor drives the spindle to rotate during use, and the spindle is not precisely sealed during installation. After long-term operation, dust and water will enter its interior, affecting the overall use of the spindle.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a waterproof air-sealing structure for an electric spindle, comprising a housing, a front end cover being fixedly mounted on the left side of the housing, a rear end cover being fixedly mounted on the right side of the housing, a sealing mechanism being provided inside the housing, and a spindle body being mounted inside the housing;

[0006] The sealing mechanism includes a limit seat, a sealing ring, a buffer rubber pad, a reinforcement plate, a limit ring, a fastening ring, a gasket and a ceramic plate. A limit seat is arranged inside the rear end cover, a sealing ring is fixedly installed on the outside of the main shaft body, a buffer rubber pad is fixedly installed on the outside of the sealing ring, a reinforcement plate is arranged on the outside of the buffer rubber pad, a limit ring is arranged on the outside of the main shaft body, a fastening ring is fixedly installed on the inside of the limit ring, a gasket is arranged on the outside of the fastening ring, and a ceramic plate is installed inside the fastening ring.

[0007] Furthermore, a rotor is installed on the outside of the main shaft body, a stator is installed on the outside of the rotor, and the right side of the main shaft body extends to the inside of the limiting seat.

[0008] Furthermore, the top and bottom of the rear end cover are provided with card slots, and the top and bottom of the limit seat are fixedly installed with limit blocks, and the two limit blocks extend from one side of the limit seat to the inside of the two card slots respectively.

[0009] Furthermore, the left side of the main shaft body extends to the outside of the front end cover, the sealing ring is sleeved on the outside of the main shaft body, and the buffer rubber pad is fitted with the outer wall of the sealing ring.

[0010] Furthermore, the reinforcing plate is sleeved on the outside of the buffer rubber pad, and the main shaft body passes through the limiting ring and the fastening ring.

[0011] Furthermore, two insert blocks are provided on the top of the limiting ring, two slots are opened inside the front end cover, and the tops of the two insert blocks extend into the two slots respectively.

[0012] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0013] 1. The waterproof air sealing structure of the electric spindle performs preliminary sealing on the spindle by setting a shell, a front cover and a rear cover. By setting a sealing mechanism and cooperating with each other in the various structures of the sealing mechanism, better sealing can be achieved to prevent the sealing of the spindle body from deteriorating due to long-term operation, thereby preventing water and dust from entering the spindle body.

[0014] 2. The electric spindle has a waterproof air sealing structure. A limit seat is set, and the limit seat is fixed by inserting the limit block into the slot of the rear end cover. At this time, the spindle body is inserted into the limit seat. A sealing ring is set to seal the outside of the spindle body to prevent dust from adhering. A buffer rubber pad is set to provide buffer protection for the outside of the spindle body, thereby reducing the wear of the spindle body. The buffer rubber pad is protected by a reinforcement plate to avoid frequent replacement of the buffer rubber pad. The fastening ring is limited by a limit ring, the fastening ring is protected by a gasket, and the gasket is protected by a ceramic plate to reduce wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view schematic diagram of the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the utility model;

[0017] Figure 3 This is a schematic diagram of the sealing mechanism of the present invention.

[0018] In the figure: 1 housing, 2 front cover, 3 rear cover, 4 sealing mechanism, 401 limit seat, 402 sealing ring, 403 buffer rubber pad, 404 reinforcement plate, 405 limit ring, 406 fastening ring, 407 gasket, 408 ceramic plate, 5 spindle body, 6 rotor, 7 limit block, 8 insert block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3 A waterproof air-sealed structure for an electric spindle includes a housing 1, a front cover 2 is fixedly mounted on the left side of the housing 1, a rear cover 3 is fixedly mounted on the right side of the housing 1, a sealing mechanism 4 is provided inside the housing 1, and a spindle body 5 is mounted inside the housing 1;

[0021] The sealing mechanism 4 includes a limit seat 401, a sealing ring 402, a buffer rubber pad 403, a reinforcement plate 404, a limit ring 405, a fastening ring 406, a gasket 407 and a ceramic plate 408. The limit seat 401 is arranged inside the rear end cover 3, the sealing ring 402 is fixedly installed on the outside of the main shaft body 5, the buffer rubber pad 403 is fixedly installed on the outside of the sealing ring 402, the reinforcement plate 404 is arranged on the outside of the buffer rubber pad 403, the limit ring 405 is arranged on the outside of the main shaft body 5, the fastening ring 406 is fixedly installed on the inside of the limit ring 405, the gasket 407 is arranged on the outside of the fastening ring 406, and the ceramic plate 408 is installed inside the fastening ring 406.

[0022] exist Figure 1 and Figure 2 In the figure, a rotor 6 is installed on the outside of the main shaft body 5, and a stator is installed on the outside of the rotor 6. The right side of the main shaft body 5 extends to the inside of the limit seat 401, and the main shaft 5 is preliminarily sealed by setting a shell 1, a front cover 2 and a rear cover 3.

[0023] exist Figure 1 and Figure 2In the embodiment, the top and bottom of the rear end cover 3 are provided with card slots. By setting a sealing mechanism 4, the various structures of the sealing mechanism 4 cooperate with each other to achieve better sealing, and prevent the sealing of the main shaft body 5 from deteriorating due to long-term operation, thereby preventing water and dust from entering the main shaft body 5. The sealing mechanism 4 includes a limit seat 401, a sealing ring 402, a buffer rubber pad 403, a reinforcement plate 404, a limit ring 405, a fastening ring 406, a gasket 407 and a ceramic plate 408. The top and bottom of the limit seat 401 are fixedly installed with limit blocks 7, and the two limit blocks 7 extend to the inside of the two card slots respectively on the side away from the limit seat 401.

[0024] exist Figure 1 and Figure 3 In the figure, the left side of the main shaft body 5 extends to the outside of the front end cover 2, the sealing ring 402 is sleeved on the outside of the main shaft body 5, and the buffer rubber pad 403 is fitted with the outer wall of the sealing ring 402. The sealing ring 402 is provided to seal the outside of the main shaft body 5 to prevent dust from adhering, and the buffer rubber pad 403 is provided to buffer and protect the outside of the main shaft body 5, thereby reducing the wear of the main shaft body 5.

[0025] exist Figure 2 and Figure 3 In the figure, the reinforcing plate 404 is sleeved on the outside of the buffer rubber pad 403, and the main shaft body 5 passes through the limiting ring 405 and the fastening ring 406. The limiting ring 405 is used to limit the fastening ring 406, and the gasket 407 is used to protect the fastening ring 406.

[0026] exist Figure 2 and Figure 3 In the embodiment, two inserting blocks 8 are provided on the top of the limiting ring 405 , and two slots are provided inside the front end cover 2 , and the tops of the two inserting blocks 8 extend into the two slots respectively.

[0027] To sum up, when using the waterproof air-sealed structure of the electric spindle, first the limit seat 401 is inserted into the slot through the limit block 7, and then the spindle body 5 together with the rotor 6 and the stator are placed in the housing 1. At this time, the right end of the spindle body 5 will pass through the limit ring 404 and be inserted into the limit seat 401. The sealing ring 402 will perform the initial sealing on the spindle body 5, and the fastening ring 406 will seal the spindle body 5 again. Finally, the front end cover 2 is closed to insert the insert block 8 into the slot and the front end cover is fixed and stabilized by the fastening bolts.

[0028] The specific model specifications of each device in this article need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof air-sealed structure for an electric spindle, comprising a housing (1), characterized in that: A front end cover (2) is fixedly mounted on the left side of the housing (1), a rear end cover (3) is fixedly mounted on the right side of the housing (1), a sealing mechanism (4) is provided inside the housing (1), and a main shaft body (5) is mounted inside the housing (1); The sealing mechanism (4) comprises a limiting seat (401), a sealing ring (402), a buffer rubber pad (403), a reinforcement plate (404), a limiting ring (405), a fastening ring (406), a gasket (407) and a ceramic plate (408); the limiting seat (401) is arranged inside the rear end cover (3); the sealing ring (402) is fixedly installed on the outside of the main shaft body (5); the buffer rubber pad (403) is fixedly installed on the outside of the sealing ring (402); the reinforcement plate (404) is arranged outside the buffer rubber pad (403); the limiting ring (405) is arranged outside the main shaft body (5); the fastening ring (406) is fixedly installed inside the limiting ring (405); the gasket (407) is arranged outside the fastening ring (406); and the ceramic plate (408) is arranged inside the fastening ring (406).

2. The waterproof air sealing structure of an electric spindle according to claim 1, characterized in that: A rotor (6) is installed on the outside of the main shaft body (5), a stator is installed on the outside of the rotor (6), and the right side of the main shaft body (5) extends to the inside of the limiting seat (401).

3. The waterproof air sealing structure of the electric spindle according to claim 1, characterized in that: The top and bottom of the rear end cover (3) are both provided with card slots, and the top and bottom of the limit seat (401) are both fixedly mounted with limit blocks (7), and the two limit blocks (7) extend to the inside of the two card slots on a side away from the limit seat (401).

4. The waterproof air sealing structure of an electric spindle according to claim 1, characterized in that: The left side of the main shaft body (5) extends to the outside of the front end cover (2), the sealing ring (402) is sleeved on the outside of the main shaft body (5), and the buffer rubber pad (403) is in contact with the outer wall of the sealing ring (402).

5. The waterproof air sealing structure of the electric spindle according to claim 1, characterized in that: The reinforcing plate (404) is sleeved on the outside of the buffer rubber pad (403), and the main shaft body (5) passes through the limiting ring (405) and the fastening ring (406).

6. The waterproof air sealing structure of an electric spindle according to claim 1, characterized in that: Two insert blocks (8) are provided on the top of the limiting ring (405), two slots are provided inside the front end cover (2), and the tops of the two insert blocks (8) extend into the inside of the two slots respectively.

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