Gear chamber gasketless seal structure

Abstract

The application provides a gear chamber gasketless sealing structure and belongs to the technical field of engines.The gear chamber gasketless sealing structure comprises an engine assembly and a sealing assembly, the engine assembly comprises a cylinder body, an air compressor, a cylinder cover and an exhaust pipe, the air compressor is installed on the side of the cylinder body, and the sealing assembly comprises a gear chamber and a cover plate; the gear chamber comprises a connecting seat, a first sealing strip and a second sealing strip; by arranging the cylinder body, the air compressor, the cylinder cover, the exhaust pipe, the gear chamber, the cover plate, the connecting seat, the first sealing strip, a sealing glue groove and the second sealing strip, when the cover plate is installed, the sealing glue liquid filled in the sealing glue groove is squeezed out, the squeezed-out sealing glue liquid enters the area of the first sealing strip and the second sealing strip for sealing, three layers of sealing glue sealing strips are formed, the gasket of the gear chamber is cancelled, the cost is reduced, the aging leakage problem of the gasket is effectively improved, and the failure rate of gear chamber oil leakage is reduced.

Description

Technical Field

[0001] This application relates to the field of engines, and more specifically, to a gasketless sealing structure for a gear chamber. Background Technology

[0002] An engine is a machine that converts other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, and electric motors. The gear system, gear housing, and gear housing cover are important engine components. The gears inside the gear housing mainly include the crankshaft timing main drive gear, fuel injection pump idler gear, fuel injection pump timing gear, camshaft timing gear, oil pump drive gear, and hydraulic pump idler gear.

[0003] Since the gear shaft requires oil lubrication, sealing the gear chamber is a challenge. The common method is to sandwich a gasket between the gear chamber and the cover plate. However, the gasket is prone to aging and wear due to minor vibrations during engine operation, leading to leakage. The failure rate of oil leakage in the gear chamber is relatively high. Summary of the Invention

[0004] To overcome the shortcomings of existing methods, this application provides a gasket-free sealing structure for the gear chamber, which solves the problem that when a gasket is sandwiched between the gear chamber and the cover plate, the gasket is prone to aging during use and wear due to minor vibrations during engine operation, resulting in leakage and a high failure rate of oil leakage in the gear chamber.

[0005] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0006] A gasketless sealing structure for a gear chamber includes an engine assembly and a sealing assembly.

[0007] The engine assembly includes a cylinder block, an air compressor, a cylinder head, and an exhaust pipe. The air compressor is mounted on the side of the cylinder block, the cylinder head is located on top of the cylinder block, and the exhaust pipe is located on the side of the cylinder head.

[0008] The sealing assembly includes a gear chamber and a cover plate. The gear chamber includes a connecting seat, a first sealing strip, and a second sealing strip. The first sealing strip is located near the outer side of the connecting seat, and the second sealing strip is located near the inner side of the connecting seat. A sealing groove is formed between the first sealing strip and the second sealing strip. The cover plate is fitted and installed in accordance with the gear chamber.

[0009] In one specific implementation, a protruding plate is provided on the inner side of the cover plate, the protruding plate and the sealing groove are corresponding, and the size of the sealing groove is larger than that of the protruding plate.

[0010] In the above implementation process, by setting a convex plate, and the size of the convex plate is smaller than the sealant groove, the sealant liquid inside can be squeezed out when the convex plate is inserted into the sealant groove during the installation of the cover plate.

[0011] In one specific implementation, the connector is provided with a glue storage tank, and the inner wall of the glue storage tank is arranged at an angle.

[0012] In the above implementation process, by opening a glue storage tank with an inclined angle, a small portion of sealant liquid after overflowing from the second sealing strip can be stored.

[0013] In one specific implementation, the outer side of the connector is provided with a protrusion and a fixing hole.

[0014] In the above implementation process, a fixing hole is opened for threaded connection bolts to fix it.

[0015] In one specific implementation, the cover plate has a through hole through which a fixing bolt is inserted, and the fixing bolt and the fixing hole are threaded together.

[0016] In the above implementation process, through holes and fixing bolts are set. The fixing bolts pass through the through holes of the cover plate and are then screwed into the fixing holes for fixed connection.

[0017] In one specific implementation, both the first sealing strip and the second sealing strip are annular, and the first sealing strip and the second sealing strip are located on both sides of the sealing groove.

[0018] In the above implementation process, by setting the first sealing strip and the second sealing strip on both sides of the opening of the sealing adhesive groove, the sealant liquid squeezed out from the sealing adhesive groove can enter the areas of the first sealing strip and the second sealing strip for sealing.

[0019] In one specific embodiment, the sealant groove surrounds the periphery of the connector, and the sealant groove is filled with silicone sealant.

[0020] In the above implementation process, silicone sealant or other adhesives with metal bonding surface sealing properties are filled into the sealant groove during installation, and then used to replace the gasket for sealing after installation.

[0021] In one specific implementation, a top cover is provided on the top of the cylinder head, and an oil pan is provided on the bottom of the cylinder block.

[0022] The advantages of this embodiment are: by setting up a cylinder block, air compressor, cylinder head, exhaust pipe, gear chamber, cover plate, connecting seat, first sealing strip, sealing glue groove and second sealing strip, when the cover plate is installed, the sealant liquid filled in the sealing glue groove will be squeezed out. The squeezed sealant liquid will quickly enter the area of ​​the first sealing strip and the second sealing strip to seal, thus forming a three-layer sealing strip. The gear chamber gasket is eliminated, the cost is reduced, and the problem of gasket aging and leakage can be effectively improved, reducing the failure rate of gear chamber oil leakage. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the gasketless sealing structure of the gear chamber provided in the embodiments of this application;

[0024] Figure 2 A schematic diagram of the sealing assembly structure provided for an embodiment of this application;

[0025] Figure 3 A schematic diagram of the first sealing strip structure provided for an embodiment of this application;

[0026] Figure 4 A schematic diagram of the cover plate structure provided for an embodiment of this application.

[0027] In the diagram: 100-Engine assembly; 110-Cylinder block; 120-Air compressor; 130-Cylinder head; 140-Exhaust pipe; 150-Top cover; 160-Oil pan; 200-Sealing assembly; 210-Gear chamber; 211-Connecting seat; 2111-Fixing hole; 212-First sealing strip; 213-Sealing adhesive groove; 214-Second sealing strip; 215-Adhesive reservoir; 220-Cover plate; 221-Protruding plate; 222-Fixing bolt. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with embodiments.

[0029] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0030] In the embodiments, unless otherwise specified, all methods used are conventional methods in the art.

[0031] Please see Figures 1-4 This application provides a gasketless sealing structure for a gear chamber, including an engine assembly 100 and a sealing assembly 200.

[0032] Please see Figure 1 and 2The engine assembly 100 includes a cylinder block 110, an air compressor 120, a cylinder head 130, and an exhaust pipe 140. The air compressor 120 is mounted on the side of the cylinder block 110, the cylinder head 130 is located on the top of the cylinder block 110, and the exhaust pipe 140 is located on the side of the cylinder head 130.

[0033] In one specific implementation, a top cover 150 is provided on the top of the cylinder head 130, and an oil pan 160 is provided on the bottom of the cylinder block 110.

[0034] Please see Figure 1 , 2 3 and 4, the sealing assembly 200 includes a gear chamber 210 and a cover plate 220. The gear chamber 210 includes a connecting seat 211, a first sealing strip 212 and a second sealing strip 214. The first sealing strip 212 is close to the outside of the connecting seat 211, and the second sealing strip 214 is close to the inside of the connecting seat 211. A sealing groove 213 is provided between the first sealing strip 212 and the second sealing strip 214. The cover plate 220 and the gear chamber 210 are fitted together.

[0035] The cover plate 220 has a protruding plate 221 on its inner side. The protruding plate 221 corresponds to the sealing glue groove 213, and the sealing glue groove 213 is larger than the protruding plate 221. By setting the protruding plate 221, and the size of the protruding plate 221 is smaller than the sealing glue groove 213, when the cover plate 220 is installed, the protruding plate 221 is inserted into the sealing glue groove 213, and the internal sealing glue liquid can be squeezed out.

[0036] Specifically, a glue storage tank 215 is provided inside the connector 211. The inner wall of the glue storage tank 215 is arranged at an angle. By providing the glue storage tank 215, which has an angle, a small portion of the sealant liquid that overflows from the second sealing strip 214 can be stored.

[0037] In this embodiment, the outer side of the connector 211 is provided with a protrusion and a fixing hole 2111 is provided. The fixing hole 2111 is used for threaded connection bolts to fix it.

[0038] The cover plate 220 has a through hole and a fixing bolt 222 is installed through it. The fixing bolt 222 and the fixing hole 2111 are threaded together. By setting the through hole and the fixing bolt 222, the fixing bolt 222 passes through the through hole of the cover plate 220 and is then screwed into the fixing hole 2111 for fixed connection.

[0039] It should be noted that both the first sealing strip 212 and the second sealing strip 214 are annular, and the first sealing strip 212 and the second sealing strip 214 are located on both sides of the sealing adhesive groove 213. By setting the first sealing strip 212 and the second sealing strip 214 on both sides of the groove opening of the sealing adhesive groove 213, the sealant liquid squeezed out from the sealing adhesive groove 213 can enter the area of ​​the first sealing strip 212 and the second sealing strip 214 for sealing.

[0040] Specifically, the sealing groove 213 surrounds the connector 211 and is filled with silicone sealant. By filling the sealing groove 213 with silicone sealant or other sealant with metal bonding surface sealing properties during installation, it can replace the gasket for sealing after installation.

[0041] The working principle of the gasketless sealing structure of the gear chamber is as follows: During installation, silicone sealant or other adhesives with metal-metal bonding sealing properties are first filled into the sealing groove 213. Then, the cylinder head 130 is aligned and fastened onto the connecting seat 211. At the same time, the protruding plate 221 is inserted into the sealing groove 213 to squeeze out the internal sealing liquid. The overflowing sealing liquid directly enters the area of ​​the first sealing strip 212 and the second sealing strip 214 for sealing. Excess sealing liquid enters the inclined storage tank 215. The first sealing strip 212, the sealing groove 213, and the second sealing strip 214 form a three-layer sealing strip, eliminating the need for a gasket in the gear chamber 210, reducing costs, and effectively improving the problem of gasket aging and leakage, thus reducing the failure rate of oil leakage in the gear chamber 210.

[0042] It should be noted that the specific model and specifications of the air compressor 120 need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0043] The power supply and principle of the air compressor 120 are clear to those skilled in the art and will not be described in detail here.

[0044] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A gasketless sealing structure for a gear chamber, characterized in that, include An engine assembly (100) includes a cylinder block (110), an air compressor (120), a cylinder head (130), and an exhaust pipe (140). The air compressor (120) is mounted on the side of the cylinder block (110), the cylinder head (130) is disposed on the top of the cylinder block (110), and the exhaust pipe (140) is disposed on the side of the cylinder head (130). A sealing assembly (200) includes a gear chamber (210) and a cover plate (220). The gear chamber (210) includes a connecting seat (211), a first sealing strip (212), and a second sealing strip (214). The first sealing strip (212) is located near the outside of the connecting seat (211), and the second sealing strip (214) is located near the inside of the connecting seat (211). A sealing groove (213) is formed between the first sealing strip (212) and the second sealing strip (214). The cover plate (220) is adapted to be installed in the gear chamber (210).

2. The gear chamber gasket-free sealing structure according to claim 1, characterized in that, The cover plate (220) has a protruding plate (221) on its inner side. The protruding plate (221) corresponds to the sealing groove (213), and the size of the sealing groove (213) is larger than that of the protruding plate (221).

3. The gear chamber gasket-less sealing structure according to claim 1, characterized in that, The connector (211) has a glue storage tank (215) inside, and the inner wall of the glue storage tank (215) is arranged at an inclination.

4. The gear chamber gasket-less sealing structure according to claim 1, characterized in that, The outer side of the connector (211) is provided with a protrusion and a fixing hole (2111).

5. A gasketless sealing structure for a gear chamber according to claim 4, characterized in that, The cover plate (220) has a through hole and a fixing bolt (222) is installed through it. The fixing bolt (222) and the fixing hole (2111) are threaded together.

6. The gear chamber gasket-free sealing structure according to claim 1, characterized in that, The first sealing strip (212) and the second sealing strip (214) are both annular, and the first sealing strip (212) and the second sealing strip (214) are located on both sides of the sealing groove (213).

7. A gasketless sealing structure for a gear chamber according to claim 1, characterized in that, The sealant groove (213) surrounds the periphery of the connector (211), and the sealant groove (213) is filled with silicone sealant.

8. A gasketless sealing structure for a gear chamber according to claim 1, characterized in that, The cylinder head (130) is provided with a top cover (150) on top, and the cylinder body (110) is provided with an oil pan (160) at the bottom.

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