Camshaft device capable of preventing corrosion

Abstract

The utility model discloses an anti-rust camshaft device which comprises a first camshaft, a fixing column is fixedly connected to the outer surface of the first camshaft, an external thread is arranged on the outer surface of the fixing column, the fixing column is in threaded connection with a fixing disc, the other end of the fixing disc is fixedly connected with a second camshaft, and the second camshaft is fixedly connected with a cam shaft. Threaded grooves are formed in the outer surfaces of the fixed disc and the fixed column, threaded rods are in threaded connection with the interiors of the threaded grooves, fixed circular rings are fixedly connected to the outer surfaces of the threaded rods, the outer surface of the first cam shaft is sleeved with an air inlet cam and an exhaust cam, and a positioning groove is formed in the outer surface of the first cam shaft; positioning holes are formed in the outer surfaces of the air inlet cam and the air outlet cam, aluminum films are fixedly connected to the outer surfaces of the first cam shaft, the air inlet cam and the air outlet cam, and anti-rust coatings are arranged on the outer surfaces of the aluminum films. Through the components, the whole device can be disassembled and assembled conveniently; and the camshaft device is prevented from being rusted.

Description

Technical Field

[0001] The utility model relates to the field of camshafts, in particular to a camshaft device capable of preventing rust. Background Art

[0002] The camshaft is one of the key components of the engine. The hardness of the camshaft sleeve tip and the depth of the notch layer are key technical indicators that determine the camshaft's service life and engine efficiency. While ensuring the cam has a sufficiently high hardness and a deep white layer, it is also important to ensure that the journal does not have high carbide content to ensure good cutting performance. The camshaft is an important component for intake and exhaust control. Usually, two or one camshaft are installed in the engine. Due to the very high requirements for camshaft movement synchronization, which directly affects engine performance, most existing camshafts are one-piece molded structures. Although their structure is stable, the processing and process are quite complex. When the camshaft is damaged, the entire camshaft needs to be replaced, increasing maintenance costs. In addition, most camshafts are prone to rust. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a rust-proof camshaft device. Through the cooperation of the first camshaft, the fixing column, the fixing disc, the second camshaft, the threaded groove, the threaded rod, the fixing ring, the intake cam, the exhaust cam, the positioning groove, the positioning hole, the aluminum film and the anti-rust coating, the entire device can be easily disassembled and assembled, and when a single cam is damaged and needs to be replaced, it is easy to replace it; by providing the aluminum film and the anti-rust coating, the camshaft device is prevented from being affected by rust.

[0004] The present invention also provides a camshaft device with the above-mentioned anti-rust property, comprising: a first camshaft, a fixing column fixedly connected to the outer surface of the first camshaft, an outer thread provided on the outer surface of the fixing column, a fixing disc threadedly connected to the fixing column, a second camshaft fixedly connected to the other end of the fixing disc, a thread groove provided on the fixing disc and the outer surface of the fixing column, a threaded rod threadedly connected to the inner surface of the thread groove, a fixing ring fixedly connected to the outer surface of the threaded rod, an intake cam and an exhaust cam sleeved on the outer surface of the first camshaft, a positioning groove provided on the outer surface of the first camshaft, a positioning hole provided on the outer surface of the intake cam and the exhaust cam, an aluminum film fixedly connected to the outer surface of the first camshaft, the intake cam and the exhaust cam, and an anti-rust coating provided on the outer surface of the aluminum film. The above components facilitate the disassembly and assembly of the entire device, and facilitate replacement when a single cam is damaged and needs to be replaced; the camshaft device is prevented from being affected by rust by providing the aluminum film and the anti-rust coating.

[0005] According to the rust-proof camshaft device of the present invention, the outer surfaces of the intake cam and the exhaust cam are provided with grooves, and connecting sleeves are provided in the grooves. The above components facilitate the connection of the intake cam and the exhaust cam.

[0006] According to the rust-proof camshaft device of the present invention, a fixing rod is fixedly connected to the inner surface of the fixing ring, and the fixing rod is fixedly connected to the fixing disc. Through the above components, the fixing disc and the fixing ring are easily connected.

[0007] According to the rust-proof camshaft device of the present invention, a connecting piece is fixedly connected to the outer surface of the second camshaft, which facilitates connection with other components.

[0008] According to the rust-proof camshaft device of the present invention, a bearing seat is fixedly connected to the outer surface of the first camshaft, and a gear is provided on the outer surface of the bearing seat. Through these components, the device can be rotated by the gear.

[0009] According to the rust-proof camshaft device of the utility model, the outer surface of the threaded rod is fixedly connected to a rotating disk. Through the above components, it is convenient to screw the threaded rod to perform the fixing work.

[0010] According to the rust-proof camshaft device of the present invention, the connecting sleeve is provided with an opening, and the opening is connected to the positioning hole. The above components facilitate the stabilization of the cam and the camshaft.

[0011] The utility model facilitates disassembly and assembly of the entire device through the cooperation of the first camshaft, the fixing column, the fixing disc, the second camshaft, the threaded groove, the threaded rod, the fixing ring, the intake cam, the exhaust cam, the positioning groove and the positioning hole. When a single cam is damaged and needs to be replaced, it is easy to replace.

[0012] By cooperating with the aluminum film and the anti-rust coating, the camshaft device can be prevented from being affected by rust. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the overall structural diagram of the rust-proof camshaft device of the utility model;

[0014] Figure 2 It is the first camshaft structure of the rust-proof camshaft device of the utility model;

[0015] Figure 3 This is a structural diagram of the second camshaft of the rust-proof camshaft device of the utility model;

[0016] Figure 4This is a structural diagram of the connecting sleeve of the rust-proof camshaft device of the utility model.

[0017] Figure 5 The figure is a schematic diagram of the exhaust cam of the rust-proof camshaft device of the present invention.

[0018] Legend:

[0019] 1. First camshaft; 2. Fixing column; 3. Fixing disc; 4. Second camshaft; 5. Threaded groove; 6. Threaded rod; 7. Fixing ring; 8. Intake cam; 9. Exhaust cam; 10. Positioning groove; 11. Positioning hole; 12. Aluminum film; 13. Anti-rust coating; 14. Slot; 15. Connecting sleeve; 16. Fixing rod; 17. Connecting piece; 18. Bearing; 19. Gear; 20. Rotating disc; 21. Opening. DETAILED DESCRIPTION

[0020] The present invention is described in detail below with reference to the various embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods or structures made by ordinary technicians in this field based on these embodiments are within the scope of protection of the present invention.

[0021] In the description of the present utility model, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meaning of the terms can be understood according to the specific circumstances.

[0022] Reference Figure 1-5The embodiment of the utility model is a rust-proof camshaft device, comprising: a first camshaft 1 for support, a bearing seat 18 is fixedly connected to the outer surface of the first camshaft 1, a gear 19 is provided on the outer surface of the bearing seat 18, and is used to drive the two camshafts to rotate, a fixing column 2 is fixedly connected to the outer surface of the first camshaft 1, and is used to be threadedly connected to a fixing disc 3, an outer surface of the fixing column 2 is provided with an external thread, and the fixing column 2 is threadedly connected to the fixing disc 3, and is used to connect the fixing column 2 to connect the two camshafts, and the other end of the fixing disc 3 is fixedly connected to the second camshaft 4, and is used to connect the two camshafts. For support, the outer surface of the second camshaft 4 is fixedly connected with a connecting piece 17 for connecting other components, and the outer surfaces of the fixed disc 3 and the fixed column 2 are provided with a threaded groove 5 for the entry of the threaded rod 5, and the threaded groove 5 is internally threaded with a threaded rod 6 for fixing work, and the outer surface of the threaded rod 6 is fixedly connected with a rotating disk 20 for conveniently twisting the threaded rod 6 for fixing work, and the outer surface of the threaded rod 6 is fixedly connected with a fixing ring 7 for supporting the threaded rod 6, and the inner surface of the fixing ring 7 is fixedly connected with a fixing rod 16 for fixing, and the fixing rod 16 is fixedly connected to the fixed disc 3.

[0023] The outer surface of the first camshaft 1 is provided with an intake cam 8 and an exhaust cam 9 for controlling the intake and exhaust. The outer surface of the first camshaft 1 is provided with a positioning groove 10 for inserting the positioning pin. The outer surfaces of the intake cam 8 and the exhaust cam 9 are provided with positioning holes 11 for inserting the positioning pin. The outer surfaces of the intake cam 8 and the exhaust cam 9 are provided with a slot 14 for the entry of a connecting sleeve 15. A connecting sleeve 15 is provided in the slot 14 for connecting the two cams. The connecting sleeve 15 is provided with an opening 21, which is connected to the positioning hole 11.

[0024] An aluminum film 12 is fixedly connected to the outer surfaces of the first camshaft 1, the intake cam 8 and the exhaust cam 9 for corrosion prevention. An anti-rust coating 13 is provided on the outer surface of the aluminum film 12 for corrosion prevention.

[0025] Working principle: When using this device, put the intake cam 8, connecting sleeve 15, and exhaust cam 9 on the first camshaft 1 in turn, align the positioning hole 11, the opening 21 and the slot 14, and insert the positioning pin to fix it. After the fixation is completed, tighten the fixing column 2 on the outer surface of the first camshaft 1 into the fixing disc 3, turn the rotating disc 20 to insert the threaded rod 6 into the threaded groove 5 to fix it, and start working. When the cam is damaged and needs to be replaced, turn the rotating disc 20 in the opposite direction to unscrew the threaded rod 6, unscrew the fixing column 2 out of the fixing disc 3, pull out the positioning pin and take out the cam for replacement. During the operation, the aluminum film 12 and the anti-rust coating 13 set on the outer surface are used to prevent rust.

[0026] The above are only some embodiments of the present invention. It should be pointed out that for ordinary technicians in this field, other variations and improvements can be made without departing from the creative concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A camshaft device that is rust-resistant, characterized in that: include: A first camshaft (1) is provided, wherein the outer surface of the first camshaft (1) is fixedly connected to a fixing column (2), the outer surface of the fixing column (2) is provided with an external thread, the fixing column (2) is threadedly connected to a fixing disc (3), the other end of the fixing disc (3) is fixedly connected to a second camshaft (4), the outer surfaces of the fixing disc (3) and the fixing column (2) are provided with a thread groove (5), the inner thread of the thread groove (5) is connected to a threaded rod (6), the outer surface of the threaded rod (6) is fixedly connected to a fixing ring (7), the outer surface of the first camshaft (1) is sleeved with an intake cam (8) and an exhaust cam (9), the outer surface of the first camshaft (1) is provided with a positioning groove (10), the outer surfaces of the intake cam (8) and the exhaust cam (9) are provided with a positioning hole (11), the outer surfaces of the first camshaft (1), the intake cam (8) and the exhaust cam (9) are fixedly connected to an aluminum film (12), and the outer surface of the aluminum film (12) is provided with an anti-rust coating (13).

2. The rust-resistant camshaft device according to claim 1, characterized in that: The outer surfaces of the intake cam (8) and the exhaust cam (9) are provided with slots (14), and a connecting sleeve (15) is provided in the slots (14).

3. The rust-resistant camshaft device according to claim 2, characterized in that: A fixing rod (16) is fixedly connected to the inner surface of the fixing ring (7), and the fixing rod (16) is fixedly connected to the fixing disc (3).

4. The rust-resistant camshaft device according to claim 1, characterized in that: A connecting piece (17) is fixedly connected to the outer surface of the second camshaft (4).

5. The rust-resistant camshaft device according to claim 1, characterized in that: A bearing seat (18) is fixedly connected to the outer surface of the first camshaft (1), and a gear (19) is provided on the outer surface of the bearing seat (18).

6. The rust-resistant camshaft device according to claim 1, characterized in that: A rotating disk (20) is fixedly connected to the outer surface of the threaded rod (6).

7. The rust-resistant camshaft device according to claim 1, characterized in that: The connecting sleeve (15) is provided with an opening (21), and the opening (21) is communicated with the positioning hole (11).

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