High-precision base cover with active sealing structure

Abstract

The utility model discloses a high accuracy frame cover with active sealing structure belongs to frame cover technical field, including frame cover main part, the end center position of frame cover main part is provided with the mounting block, the end annular of mounting block is provided with a plurality of fixed embedded pole, the end of frame cover main part is provided with the hole hole of mutual adaptation with fixed embedded pole, the inside wall of mounting block is provided with the installation fluting, the inside of installation fluting is filled with sealed gasbag. The utility model can make the rotation axis of motor when passing through the through -hole, and the gas is injected to the inside of sealed gasbag through connecting pipe and air inlet pipe, makes sealed gasbag contact with the rotation axis of motor after taking place inflation, thereby carries out active sealing, avoids the impurity and dust and passes through the clearance of through -hole and the rotation axis and enters the inside of motor.

Description

Technical Field

[0001] This utility model relates to the field of machine base cover technology, and in particular to a high-precision machine base cover with an active sealing structure. Background Technology

[0002] A motor base cover is a common term in mechanical engineering. It usually refers to an end cover installed on the end of a motor to seal the bearing hole or shaft extension hole, and has a through hole in the middle. It is usually a disc-shaped or flange-shaped part, and the through hole is located in the center of the disc, with a diameter slightly larger than the shaft diameter.

[0003] However, existing through covers cannot provide active sealing. After prolonged storage, dust and impurities in the air easily adhere to the gap between the shaft and the through hole. Subsequently, during operation, these impurities and dust can easily enter the motor's interior as the shaft rotates. To address this issue, we propose a high-precision through cover with an active sealing structure. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies mentioned in the background section by proposing a high-precision machine base cover with an active sealing structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-precision machine base cover with an active sealing structure includes a machine base cover body, an installation block is provided at the center of the end of the machine base cover body, multiple sets of fixing rods are arranged in a ring at the end of the installation block, holes that are adapted to the fixing rods are opened at the end of the machine base cover body, and an installation groove is opened on the inner side wall of the installation block, and the interior of the installation groove is filled with a sealing airbag.

[0007] The sealing airbag can be inflated and pressed against the outer wall of the motor shaft to achieve active sealing. When placed, it can block and filter dust and impurities, preventing dirt and dust from entering the motor.

[0008] Preferably, the sealing airbag is provided with a connecting pipe at one end, and an air inlet pipe is provided at the other end of the connecting pipe. The sealing airbag is in communication with the interior of the connecting pipe and the air inlet pipe, and the connecting pipe and the air inlet pipe extend through the outer wall of the mounting block to the outside.

[0009] Personnel can connect an air pump or other air pump to the air intake pipe, allowing gas to be injected into the sealed airbag through the air intake pipe and connecting pipe.

[0010] Preferably, a tension spring is provided inside the mounting slot, and the other end of the tension spring is fixedly connected to the outer wall of the sealing airbag;

[0011] When the sealing airbag contracts, the tension spring pulls the sealing airbag to better embed it into the installation slot for storage.

[0012] Preferably, the outer diameter of the intake pipe is smaller than the outer diameter of the connecting pipe, and a movable shaft is provided inside the intake pipe. The end of the movable shaft extends into the interior of the connecting pipe and is provided with a sealing block. The outer diameter of the sealing block is larger than the inner diameter of the intake pipe but smaller than the inner diameter of the connecting pipe.

[0013] The movable shaft can drive the sealing block to slide inside the connecting pipe. When the sealing block contacts the end of the connecting pipe, it can seal the air inlet pipe, thus preventing gas leakage.

[0014] Preferably, a fixed bearing is provided at the middle position inside the air intake pipe, and the fixed bearing is sleeved on the outside of the movable shaft;

[0015] This can improve the stability of the sliding of the moving shaft and prevent the moving shaft from causing the sealing block to detach.

[0016] Preferably, the length of the movable shaft is longer than the length of the intake pipe, and when the sealing block is in contact with the end of the connecting pipe, the other end of the movable shaft extends to the outside of the intake pipe;

[0017] This allows personnel to easily move the sealing block by pressing the end of the movable shaft, thereby moving the sealing block away from the end of the connecting pipe to complete the venting operation.

[0018] Preferably, a support spring is sleeved on the outside of the movable shaft, one end of the support spring is fixedly connected to the fixed shaft seat, and the other end of the support spring is fixedly connected to the sealing block.

[0019] The support spring can pull the sealing block, thereby allowing the sealing block to fit better with the end of the connecting pipe, resulting in a better seal.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model allows the gas to be injected into the sealed airbag through the connecting pipe and the air inlet pipe when the motor shaft passes through the through hole. This causes the sealed airbag to expand and come into contact with the motor shaft, thereby achieving active sealing and preventing impurities and dust from entering the motor through the gap between the through hole and the shaft.

[0022] 2. This utility model can move the sealing block by pressing the movable shaft, thereby causing the gas inside the sealing airbag to leak. Then, the sealing airbag is pulled by the tension spring to move into the installation slot, thus completing the storage of the sealing airbag without affecting subsequent normal use. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of a high-precision machine base cover with an active sealing structure proposed in this utility model;

[0024] Figure 2 for Figure 1 Rear view of the mounting block;

[0025] Figure 3 for Figure 1 A frontal sectional view of the mounting block;

[0026] Figure 4 for Figure 3 A frontal cross-sectional view of the connecting pipe and the intake pipe.

[0027] In the diagram: 1. Main body of the machine base cover; 2. Mounting block; 3. Fixing rod; 4. Mounting slot; 5. Sealing airbag; 6. Tension spring; 7. Connecting pipe; 8. Air inlet pipe; 9. Fixed bearing seat; 10. Moving shaft; 11. Sealing block; 12. Support spring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Reference Figure 1-4The high-precision machine base cover with an active sealing structure is shown. A mounting block 2 is placed in the through hole at the center of the side of the machine base cover body 1. The mounting block 2 has a hole of the same size as the through hole in the machine base cover body 1 at its center. Multiple sets of fixing rods 3 are then fixedly installed circumferentially on the side of the mounting block 2. Simultaneously, openings matching the fixing rods 3 are circumferentially formed around the through hole in the machine base cover body 1, allowing the fixing rods 3 to pass through the openings and be installed with bolts. Furthermore, a... The mounting slot 4 is then filled with a sealing airbag 5. The sealing airbag 5 is annular, and its bottom end matches the hole in the center of the mounting block 2. Multiple sets of tension springs 6 are then fixedly installed in annular shape on the top of the inner wall of the mounting slot 4. The other end of the tension springs 6 is fixedly connected to the outer wall of the sealing airbag 5, so that the tension springs 6 can pull the sealing airbag 5 to be better embedded into the interior of the mounting slot 4 for storage, thus avoiding friction on the motor shaft during normal operation.

[0030] For a detailed description of the sealing airbag 5 in this embodiment, please refer to [link / reference]. Figure 3 and Figure 4 A connecting pipe 7 is fixedly installed on the side of the sealing airbag 5. An air inlet pipe 8 is fixedly connected to the end of the connecting pipe 7, so that both the connecting pipe 7 and the air inlet pipe 8 communicate with the interior of the sealing airbag 5. The ends of the connecting pipe 7 and the air inlet pipe 8 extend through the mounting block 2 to the outside. At the same time, the inner diameter of the air inlet pipe 8 is smaller than the inner diameter of the connecting pipe 7, so that it is set in a stepped shape. Then, a fixed bearing 9 is fixedly installed in the middle position inside the air inlet pipe 8, and a movable shaft 10 is inserted in the middle position of the fixed bearing 9. The end of the movable shaft 10 extends... A sealing block 11 is fixedly installed inside the connecting pipe 7. The outer diameter of the sealing block 11 is larger than the inner diameter of the air intake pipe 8 but smaller than the inner diameter of the connecting pipe 7. The length of the moving shaft 10 is longer than the length of the air intake pipe 8, so that the sealing block 11 can seal the air intake pipe 8 after it acts on the end of the connecting pipe 7. Then, a support spring 12 is sleeved on the outside of the moving shaft 10. One end of the support spring 12 is fixedly connected to the fixed shaft seat 9, and the other end of the support spring 12 is fixedly connected to the sealing block 11.

[0031] Working principle: In use, the mounting block 2 is installed at the end of the main body 1 of the base cover via the fixing rod 3, so that the hole on the mounting block 2 corresponds to the through hole on the main body 1 of the base cover. This allows the motor shaft to pass through the through hole and the hole for normal operation. Then, the operator can contact the air nozzle with the air inlet pipe 8 to inject gas into the air inlet pipe 8 and the connecting pipe 7. The gas then pushes the sealing block 11 to move, allowing the gas to enter the sealing airbag 5. After the sealing airbag 5 collides with the outer wall of the motor shaft, it squeezes and contacts, thereby sealing the through hole and the motor shaft, preventing impurities and dust from entering the motor through this gap.

[0032] Then, by pressing the movable shaft 10, the movable shaft 10 can drive the sealing block 11 to move, thereby allowing the gas inside the sealing airbag 5 to escape. Then, the tension spring 6 pulls the sealing airbag 5, so that the sealing airbag 5 can better retract into the installation slot 4 for concealment, without affecting the normal operation of the motor shaft.

[0033] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0034] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0035] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A high-precision machine base cover with an active sealing structure, comprising a machine base cover body (1), characterized in that, An installation block (2) is provided at the center of the end of the main body (1) of the base cover. Multiple sets of fixing rods (3) are arranged in a ring at the end of the installation block (2). Holes that are compatible with the fixing rods (3) are opened at the end of the main body (1) of the base cover. An installation groove (4) is opened on the inner side wall of the installation block (2). The interior of the installation groove (4) is filled with a sealing airbag (5).

2. The high-precision machine base cover with an active sealing structure according to claim 1, characterized in that, The sealing airbag (5) is provided with a connecting pipe (7) at one end, and an air inlet pipe (8) is provided at the other end of the connecting pipe (7). The sealing airbag (5) is internally connected to the connecting pipe (7) and the air inlet pipe (8). The connecting pipe (7) and the air inlet pipe (8) extend through the outer wall of the mounting block (2) to the outside.

3. A high-precision machine base cover with an active sealing structure according to claim 1, characterized in that, A tension spring (6) is provided inside the mounting slot (4), and the other end of the tension spring (6) is fixedly connected to the outer wall of the sealing airbag (5).

4. A high-precision machine base cover with an active sealing structure according to claim 2, characterized in that, The outer diameter of the air intake pipe (8) is smaller than the outer diameter of the connecting pipe (7). A movable shaft (10) is provided inside the air intake pipe (8). The end of the movable shaft (10) extends into the interior of the connecting pipe (7) and is provided with a sealing block (11). The outer diameter of the sealing block (11) is larger than the inner diameter of the air intake pipe (8) but smaller than the inner diameter of the connecting pipe (7).

5. A high-precision machine base cover with an active sealing structure according to claim 4, characterized in that, A fixed bearing seat (9) is provided at the middle position inside the air intake pipe (8), and the fixed bearing seat (9) is sleeved on the outside of the movable shaft (10).

6. A high-precision machine base cover with an active sealing structure according to claim 5, characterized in that, The length of the movable shaft (10) is longer than the length of the intake pipe (8). When the sealing block (11) is in contact with the end of the connecting pipe (7), the other end of the movable shaft (10) extends to the outside of the intake pipe (8).

7. A high-precision machine base cover with an active sealing structure according to claim 6, characterized in that, The movable shaft (10) is fitted with a support spring (12), one end of which is fixedly connected to the fixed shaft seat (9), and the other end of which is fixedly connected to the sealing block (11).

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