High-temperature-resistant oil seal for steering gear

Abstract

The high-temperature-resistant oil seal for the steering gear is applied to the field of the steering gear and comprises a framework, a sealing ring is arranged on the inner wall of the framework, a fixing groove is formed in the surface of the sealing ring, and a tie bar is arranged in the fixing groove in a sleeved mode. The tie bar is arranged on the surface of the sealing ring, the tie bar is tensioned by the two ends of the tie bar through the tension springs, and the tie bar compresses the sealing ring, so that the sealing ring is in close contact with the rotating shaft, the purpose of good deformation resistance can be achieved, the sealing performance is improved, and the sealing ring is convenient to use; heat is conducted to the heat-conducting fins through the heat-conducting wires and then conducted to the heat-conducting plate from the heat-conducting fins, the heat-conducting plate conducts the heat to the air to be dissipated, the heat dissipation fins enlarge the heat dissipation area of the heat-conducting plate, the heat dissipation efficiency is further improved, and therefore the purpose of the heat dissipation function is achieved, the sealing effect is guaranteed, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of steering gears, and in particular to a high-temperature resistant oil seal for steering gears. Background Technology

[0002] A search of Chinese patents revealed publication number CN209990910U, which discloses a combined shock absorber oil seal comprising a first oil seal, a second oil seal, and a third rubber body. The first oil seal includes a first rubber body, a first skeleton, and a first spring. The inner wall of the first rubber body has a first sealing lip, and the first spring is embedded in the back of the first sealing lip. The second oil seal includes a second rubber body and a second skeleton, with the second skeleton fixedly installed to the first skeleton. The inner wall of the second rubber body has a second sealing lip. The third rubber body is installed between the first and second oil seals, and its inner wall has a third sealing lip. This utility model's combined shock absorber oil seal manufactures the rubber bodies, which perform different functions, separately, thereby enabling the use of multiple materials to meet the requirements of each sealing lip for oil resistance, high and low temperature resistance, temperature range, and ozone resistance while considering manufacturing costs.

[0003] Existing oil seals have poor resistance to deformation. Generally, oil seals will deform after prolonged use, which will reduce the sealing performance, lead to oil leakage, make them inconvenient to use, and lack heat dissipation function. During use, the oil seal will generate heat through contact and friction with the shaft. If the heat is not dissipated in time, it will reduce the sealing performance and shorten the service life of the oil seal. In order to solve the above problems, we propose a high-temperature resistant oil seal for steering gears. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature resistant oil seal for steering gear, which has the advantages of good deformation resistance and heat dissipation function.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-temperature resistant oil seal for a steering gear, comprising a frame, a sealing ring provided on the inner wall of the frame, a fixing groove provided on the surface of the sealing ring, a tie rod provided inside the fixing groove, a tension spring bolted between the two ends of the tie rod, a heat-conducting wire fixedly sleeved on the inner wall of the sealing ring, a heat-conducting sheet welded to the surface of the heat-conducting wire, a heat-conducting plate provided at the bottom of the heat-conducting sheet, and the heat-conducting plate fixedly sleeved with the inner wall of the frame.

[0006] By adopting the above technical solution, a reinforcing rib is set on the surface of the sealing ring, and the two ends of the rib are tightened by tension springs, so that the rib presses against the sealing ring, thereby making the sealing ring in close contact with the rotating shaft. This achieves good resistance to deformation, improves sealing performance, and facilitates use. Heat is conducted to the heat-conducting sheet through the heat-conducting wire, and then from the heat-conducting sheet to the heat-conducting plate. The heat-conducting plate conducts the heat to dissipate into the air. The heat dissipation fins increase the heat dissipation area of ​​the heat-conducting plate, further improving the heat dissipation efficiency, thereby achieving the purpose of heat dissipation, ensuring the sealing effect, and improving service life.

[0007] The present invention is further configured such that: a fixing ring is provided between the sealing ring and the inner wall of the skeleton, and the fixing ring is threadedly connected to the skeleton by a bolt.

[0008] By adopting the above technical solution, the sealing ring can be easily installed, removed, and replaced by setting a fixing ring and bolts.

[0009] The present invention is further configured such that heat dissipation fins are integrally formed on the bottom of the heat-conducting plate.

[0010] By adopting the above technical solution and setting heat dissipation fins, the heat dissipation efficiency is improved.

[0011] The present invention is further configured such that the inner wall of the sealing ring is integrally formed with a raised lip.

[0012] By adopting the above technical solution and setting two convex lips for double protection, the sealing performance is greatly improved.

[0013] The present invention is further configured such that the bolt is a stainless steel internal hex bolt.

[0014] By adopting the above technical solution, stainless steel internal hex bolts are used for the bolts, which facilitates assembly and disassembly using tools.

[0015] The present invention is further configured such that the heat-conducting wire, heat-conducting sheet and heat-conducting plate are all made of copper.

[0016] By adopting the above technical solution, the heat-conducting wire, heat-conducting sheet, and heat-conducting plate are all made of copper, which has good thermal conductivity.

[0017] The present invention is further configured such that the sealing ring is made of fluororubber.

[0018] The above technical solution uses fluororubber as the material for the sealing ring. Fluororubber has the advantages of high temperature resistance, oil resistance, chemical corrosion resistance, and high mechanical strength.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. This utility model achieves good resistance to deformation and improves sealing performance by setting a tie bar on the surface of the sealing ring and tightening the tie bar at both ends by tension springs, so that the tie bar presses the sealing ring tightly, thereby making the sealing ring in close contact with the rotating shaft. This method is convenient to use.

[0021] 2. This utility model uses a heat-conducting wire to conduct heat to a heat-conducting sheet, and then from the heat-conducting sheet to a heat-conducting plate. The heat-conducting plate then conducts the heat into the air and dissipates it. The heat dissipation fins increase the heat dissipation area of ​​the heat-conducting plate, further improving the heat dissipation efficiency, thereby achieving the purpose of heat dissipation, ensuring the sealing effect, and improving the service life. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural view of the present invention;

[0023] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0024] Figure 3 This is a top sectional view of the structure of this utility model;

[0025] Figure 4 This is a top view sectional view of the structure of this utility model.

[0026] Reference numerals: 1. Frame; 2. Sealing ring; 3. Fixing groove; 4. Tie rod; 5. Tension spring; 6. Heat-conducting wire; 7. Heat-conducting sheet; 8. Heat-conducting plate; 9. Fixing ring; 10. Bolt; 11. Heat dissipation fins; 12. Raised lip. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Example 1:

[0029] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4A high-temperature resistant oil seal for a steering gear includes a frame 1. A sealing ring 2 is provided on the inner wall of the frame 1. A fixing groove 3 is formed on the surface of the sealing ring 2. A tie rod 4 is sleeved inside the fixing groove 3. A tension spring 5 is bolted between the two ends of the tie rod 4. A heat-conducting wire 6 is fixedly sleeved on the inner wall of the sealing ring 2. A heat-conducting sheet 7 is welded to the surface of the heat-conducting wire 6. A heat-conducting plate 8 is provided at the bottom of the heat-conducting sheet 7, and the heat-conducting plate 8 is fixedly sleeved with the inner wall of the frame 1. The tie rod 4 is provided on the surface of the sealing ring 2, and the two ends of the tie rod 4 are connected by the tension spring 5. The tensioning rib 4 is tightened to press the sealing ring 2 tightly, thus ensuring close contact between the sealing ring 2 and the rotating shaft. This achieves good resistance to deformation, improves sealing performance, and facilitates use. Heat is conducted through the heat-conducting wire 6 to the heat-conducting plate 7, and then from the heat-conducting plate 7 to the heat-conducting plate 8. The heat-conducting plate 8 dissipates the heat into the air. The heat dissipation fins 11 increase the heat dissipation area of ​​the heat-conducting plate 8, further improving heat dissipation efficiency, thereby achieving the purpose of heat dissipation, ensuring the sealing effect, and extending service life.

[0030] refer to Figure 1 and Figure 2 A retaining ring 9 is provided between the sealing ring 2 and the inner wall of the skeleton 1. The retaining ring 9 and the skeleton 1 are connected by a bolt 10. By providing the retaining ring 9 and the bolt 10, it is easy to install and remove the sealing ring 2 and to replace it.

[0031] refer to Figure 1 and Figure 2 The bottom of the heat-conducting plate 8 is integrally formed with heat dissipation fins 11, which improves the heat dissipation efficiency.

[0032] refer to Figure 1 and Figure 2 The inner wall of the sealing ring 2 is integrally formed with a raised lip 12. By setting the raised lip 12, the two raised lips 12 provide double protection, which greatly improves the sealing performance.

[0033] refer to Figure 1 Bolt 10 is a stainless steel hexagon socket head cap screw. By using stainless steel hexagon socket head cap screws for bolt 10, it is easy to install and remove using tools.

[0034] refer to Figure 2 The heat-conducting wire 6, heat-conducting sheet 7, and heat-conducting plate 8 are all made of copper. By setting the heat-conducting wire 6, heat-conducting sheet 7, and heat-conducting plate 8 to be made of copper, copper has good thermal conductivity.

[0035] refer to Figure 1 and Figure 2 The sealing ring 2 is made of fluororubber. Fluororubber has the advantages of high temperature resistance, oil resistance, chemical corrosion resistance, and high mechanical strength.

[0036] Brief description of the usage process: A tie rod 4 is provided on the surface of the sealing ring 2. The two ends of the tie rod 4 are tightened by the tension spring 5, so that the tie rod 4 presses the sealing ring 2 tightly, thereby making the sealing ring 2 in close contact with the rotating shaft and preventing the sealing ring 2 from deforming, thus achieving the purpose of good anti-deformation ability; the heat-conducting wire 6 conducts heat to the heat-conducting plate 7, and then from the heat-conducting plate 7 to the heat-conducting plate 8. The heat-conducting plate 8 conducts heat into the air and dissipates it. The heat dissipation fins 11 increase the heat dissipation area of ​​the heat-conducting plate 8, further improving the heat dissipation efficiency, thereby achieving the purpose of heat dissipation function.

[0037] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A high-temperature resistant oil seal for a steering gear, comprising a skeleton (1), characterized in that, The inner wall of the frame (1) is provided with a sealing ring (2), the surface of the sealing ring (2) is provided with a fixing groove (3), the inside of the fixing groove (3) is provided with a tie rod (4), the two ends of the tie rod (4) are connected with a tension spring (5), the inner wall of the sealing ring (2) is fixedly sleeved with a heat-conducting wire (6), the surface of the heat-conducting wire (6) is welded with a heat-conducting sheet (7), the bottom of the heat-conducting sheet (7) is provided with a heat-conducting plate (8), and the heat-conducting plate (8) is fixedly sleeved with the inner wall of the frame (1).

2. A high temperature resistant oil seal for a diverter according to claim 1, wherein A fixing ring (9) is provided between the sealing ring (2) and the inner wall of the skeleton (1), and a bolt (10) is threadedly connected between the fixing ring (9) and the skeleton (1).

3. A high temperature resistant oil seal for a diverter as defined in claim 1, wherein The bottom of the heat-conducting plate (8) is integrally formed with heat dissipation fins (11).

4. A high-temperature resistant oil seal for a steering gear according to claim 1, characterized in that, The inner wall of the sealing ring (2) is integrally formed with a raised lip (12).

5. A high-temperature resistant oil seal for a steering gear according to claim 2, characterized in that, The bolt (10) is a stainless steel internal hex bolt (10).

6. A high temperature resistant oil seal for a diverter according to claim 1, wherein, The heat-conducting wire (6), heat-conducting sheet (7) and heat-conducting plate (8) are all made of copper.

7. A high-temperature resistant oil seal for a steering gear according to claim 1, characterized in that, The sealing ring (2) is made of fluororubber.

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