A skeleton oil seal for mechanical transmission components

Abstract

This utility model relates to the field of sealing device technology and discloses a skeleton oil seal for mechanical transmission components. It includes a skeleton body, with sealing lips fixedly connected to both the upper and lower sides of the inner wall of the skeleton body. An installation cavity is formed inside each sealing lip, and a return spring is uniformly fixedly connected around the perimeter of the installation cavity. Installation blocks are fixedly connected to the upper, lower, left, and right sides of the skeleton body. A telescopic column is fixedly connected to the opposite side of each installation block. A return spring is provided on the outer side of the telescopic column, and a protective component is provided on the opposite side of the telescopic column for dust protection of the skeleton oil seal. In this utility model, through the cooperation of the connecting blocks, protective rings, telescopic columns, return springs, sealing lips, bolts, and nuts, the skeleton oil seal for mechanical transmission components can fully protect the skeleton body, preventing external contaminants from entering and causing contamination.

Description

Technical Field

[0001] This utility model relates to the field of sealing device technology, and in particular to a skeleton oil seal for mechanical transmission components. Background Technology

[0002] With the continuous development and widespread application of mechanical equipment, mechanical transmission components often face the intrusion of contaminants during operation, especially under harsh working environments such as high temperature, high humidity, or dusty environments. To ensure the normal operation and extend the service life of mechanical equipment and prevent external contaminants from entering the interior of mechanical parts, protective sealing devices have become one of the key protective measures. Traditional skeleton oil seals mostly adopt simple sealing structures. Although they can play a basic protective role, their durability and adaptability are often insufficient when facing high-load and high-intensity working environments, making them prone to leakage or wear, resulting in reduced sealing effect and thus affecting the operating efficiency of the equipment. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a skeleton oil seal for mechanical transmission components, aiming to improve the problem that the protective effect of skeleton oil seals in the prior art is generally poor.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a skeleton oil seal for mechanical transmission components, comprising a skeleton body, sealing lips fixedly connected to the upper and lower sides of the inner wall of the skeleton body, an installation cavity opened inside the sealing lip, a return spring one evenly fixedly connected around the inside of the installation cavity, installation blocks fixedly connected to the upper and lower sides and left and right sides of the skeleton body, a telescopic column fixedly connected to the opposite side of the installation block, a return spring two provided on the outside of the telescopic column, and a protective component provided on the opposite side of the telescopic column for dust prevention of the skeleton oil seal.

[0005] As a further description of the above technical solution:

[0006] The protective component includes a protective ring, which is fixedly connected to the opposite side of the telescopic column. Connecting blocks are fixedly connected to both the front and rear sides of the opposite side of the protective ring. Bolts are inserted inside the connecting blocks, and nuts are threaded onto the outside of the bolts.

[0007] As a further description of the above technical solution:

[0008] The frame body is made of stainless steel, the sealing lip is made of polyurethane, and both the first and second return springs are made of carbon steel.

[0009] As a further description of the above technical solution:

[0010] One end of the second reset spring is fixedly connected to the telescopic column, and the other end of the second reset spring is fixedly connected to the protective ring.

[0011] As a further description of the above technical solution:

[0012] The protective ring is slidably connected to the upper and lower sides of the frame body.

[0013] As a further description of the above technical solution:

[0014] The mounting block is made of aluminum alloy, and the telescopic column is made of stainless steel.

[0015] As a further description of the above technical solution:

[0016] The protective ring is made of rubber.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, by pulling the connecting block, the protective ring is moved. The moving protective ring squeezes the telescopic column and the second return spring. Then, the shaft is inserted into the sealing lip. Then, the connecting block is released so that the second return spring loses pressure and pushes the protective ring to reset, thus closing the reset gap of the protective ring. Finally, the bolt is rotated to connect the two connecting blocks, and the nut is rotated to reinforce the bolt. This realizes that the skeleton oil seal used for mechanical transmission components can fully protect the skeleton body and prevent external contaminants from entering the skeleton oil seal and causing pollution.

[0019] 2. In this utility model, by using stainless steel to provide the skeleton body with better rigidity and corrosion resistance, the skeleton body can withstand greater mechanical loads. By using polyurethane, the adaptability and sealing performance of the sealing lip are improved. By using carbon steel, the elasticity and fatigue resistance of the first and second return springs are guaranteed, thereby improving the durability and applicability of the skeleton oil seal. Attached Figure Description

[0020] Figure 1 This is a perspective view of a skeleton oil seal for a mechanical transmission component proposed in this utility model;

[0021] Figure 2 This is a cross-sectional view of the sealing lip of a skeleton oil seal for a mechanical transmission component proposed in this utility model.

[0022] Figure 3 for Figure 1 Enlarged view of point A in the image.

[0023] Legend:

[0024] 1. Frame body; 2. Sealing lip; 3. Mounting cavity; 4. Return spring one; 5. Mounting block; 6. Telescopic column; 7. Return spring two; 8. Protective ring; 9. Connecting block; 10. Bolt; 11. Nut. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-3 This utility model provides an embodiment of a skeleton oil seal for mechanical transmission components, comprising a skeleton body 1, with sealing lips 2 fixedly connected to both the upper and lower sides of the inner wall of the skeleton body 1, an installation cavity 3 inside the sealing lip 2, and a return spring 4 evenly fixedly connected around the perimeter of the installation cavity 3, mounting blocks 5 fixedly connected to both the upper and lower sides and left and right sides of the skeleton body 1, a telescopic column 6 fixedly connected to the opposite side of the mounting block 5, a return spring 7 provided on the outer side of the telescopic column 6, one end of the return spring 7 fixedly connected to the telescopic column 6, and the other end of the return spring 7 fixedly connected to a protective ring 8, a protective component provided on the opposite side of the telescopic column 6 for dust protection of the skeleton oil seal, the protective component including a protective ring 8, the protective ring 8 fixedly connected to the opposite side of the telescopic column 6, and connecting blocks 9 fixedly connected to both the front and rear sides of the opposite side of the protective ring 8, with bolts 10 passing through the connecting blocks 9, and nuts 11 threadedly connected to the outer side of the bolts 10, and the protective ring 8 slidably connected to the upper and lower sides of the skeleton body 1.

[0027] When effective protection of the skeleton oil seal is required, firstly, pull the connecting block 9 to move the protective ring 8. The protective ring 8 moves and presses against the telescopic column 6 and the return spring 7. Then, the operator inserts the shaft into the sealing lip 2, and then releases the connecting block 9 to release the pressure of the return spring 7, pushing the protective ring 8 to return to its original position. This allows the protective ring 8 to effectively seal the gap between the shaft and the skeleton body 1, preventing external contaminants from entering the oil seal and causing contamination. Finally, rotate the bolt 10 to connect the left and right connecting blocks 9, and finally rotate the nut 11 to reinforce and fix the bolt 10. This achieves effective protection of the mechanical transmission components by the skeleton oil seal, prevents the intrusion of external contaminants, extends the service life of the equipment, and improves its working efficiency.

[0028] Reference Figures 1-3The frame body 1 is made of stainless steel, the sealing lip 2 is made of polyurethane, the return spring 1 4 and the return spring 2 7 are both made of carbon steel, the mounting block 5 is made of aluminum alloy, the telescopic column 6 is made of stainless steel, and the protective ring 8 is made of rubber.

[0029] By using stainless steel to provide the skeleton body 1 with good rigidity and corrosion resistance, the skeleton body 1 can withstand a large mechanical load. By using polyurethane, the adaptability and sealing performance of the sealing lip 2 are improved. By using carbon steel, the elasticity and fatigue resistance of the return spring 4 and the return spring 7 are guaranteed, thereby improving the durability and applicability of the skeleton oil seal. By using aluminum alloy, the strength and pressure resistance of the mounting block 5 are guaranteed. By using stainless steel, the telescopic column 6 is provided with good strength and wear resistance. By using rubber, the sealing effect of the protective ring 8 is guaranteed.

[0030] Working principle: When protection of the skeleton oil seal is required, pull the connecting block 9 to move the protective ring 8. The protective ring 8 moves and squeezes the telescopic column 6 and the return spring 7. Then, the shaft is inserted into the sealing lip 2. Then, release the connecting block 9 so that the return spring 7 loses pressure and pushes the protective ring 8 back to its original position, thus sealing the gap between the shaft and the skeleton body 1. Finally, rotate the bolt 10 to connect the left and right connecting blocks 9. Finally, rotate the nut 11 to reinforce the bolt 10. This achieves the protection of the skeleton body 1 by the skeleton oil seal used for mechanical transmission components, preventing external contaminants from entering the skeleton oil seal and causing contamination.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A skeleton oil seal for mechanical transmission components, comprising a skeleton body (1), characterized in that: The inner walls of the skeleton body (1) are fixedly connected with sealing lips (2) on both the upper and lower sides. The sealing lips (2) have an installation cavity (3) inside. The installation cavity (3) is evenly fixedly connected with a first reset spring (4) around its perimeter. The upper and lower sides of the skeleton body (1) are fixedly connected with mounting blocks (5) on both the left and right sides. The opposite side of the mounting block (5) is fixedly connected with a telescopic column (6). The outside of the telescopic column (6) is provided with a second reset spring (7). The opposite side of the telescopic column (6) is provided with a protective component for dust prevention of the skeleton oil seal.

2. The skeleton oil seal for mechanical transmission components according to claim 1, characterized in that: The protective component includes a protective ring (8), which is fixedly connected to the opposite side of the telescopic column (6). Connecting blocks (9) are fixedly connected to both the front and rear sides of the opposite side of the protective ring (8). Bolts (10) are inserted inside the connecting blocks (9), and nuts (11) are threaded onto the outside of the bolts (10).

3. A skeleton oil seal for mechanical transmission components according to claim 1, characterized in that: The skeleton body (1) is made of stainless steel, the sealing lip (2) is made of polyurethane, and the first reset spring (4) and the second reset spring (7) are both made of carbon steel.

4. A skeleton oil seal for mechanical transmission components according to claim 1, characterized in that: One end of the second reset spring (7) is fixedly connected to the telescopic column (6), and the other end of the second reset spring (7) is fixedly connected to the protective ring (8).

5. A skeleton oil seal for mechanical transmission components according to claim 2, characterized in that: The protective ring (8) is slidably connected to the upper and lower sides of the skeleton body (1).

6. A skeleton oil seal for mechanical transmission components according to claim 1, characterized in that: The mounting block (5) is made of aluminum alloy, and the telescopic column (6) is made of stainless steel.

7. A skeleton oil seal for mechanical transmission components according to claim 2, characterized in that: The protective ring (8) is made of rubber.

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