A main bearing cap of a methanol engine with high sealing performance and easy to assemble

Abstract

The utility model discloses a main bearing cap of a methanol engine with high sealing performance, which is easy to assemble, comprising an engine body using methanol dye, an engine main shaft being rotatably mounted on the side of the engine body, and a bearing body connected to the engine body being mounted on the outside of the engine main shaft, the main bearing cap being divided into a rear cover body and a front cover body, and the rear cover body being close to the engine body, and the front cover body being close to the outer surface of the rear cover body, and limiting blocks being fixedly mounted on the left and right ends of the inner side of the front cover body. The main bearing cap of a methanol engine with high sealing performance, which is easy to assemble, adopts a novel structural design, the rear cover body is fixed to the outside of the engine body by using an adsorbed magnetic block in advance, and the positioning is achieved by the engagement between the positioning groove and the positioning block, and then the front cover body is fixed and inserted into the corresponding docking block between the docking groove, and the front cover body is limited, so that the hole positions are quickly aligned, and the assembly operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing covers, in particular to a main bearing cover of a methanol engine with high sealing performance, which is easy to assemble. Background Art

[0002] A bearing cap is a device used to cover a bearing to protect its internal components from dust, liquids and other contaminants. It is usually made of metal or plastic and is widely used in mechanical equipment and industrial equipment. A methanol engine is an engine that uses methanol as a raw material. The main shaft of the engine needs to be connected to the bearing. At this time, a bearing cap needs to be installed to protect the bearing and extend its service life.

[0003] In the prior art, a Chinese patent with a publication number of CN107100941A discloses an anti-loosening bearing cover, including a bearing cover body, a center groove and a bolt hole. A center groove is provided at the center position of the bearing cover body, and a layer of rubber pad is coated on the edge of the center groove. A cavity is provided at the position of the rubber pad in the bearing cover body, and a plurality of spring columns are arranged in a ring in the cavity. The two ends of the plurality of spring columns respectively abut the bearing cover body and the rubber pad. A plurality of bolt holes are provided on the outer edge of the bearing cover body, and a rubber pad is coated on the center groove to avoid wear of the groove during repeated disassembly. In addition, a spring column is added to ensure the sealing of the bearing cover body even after the rubber pad is worn. When the rubber pad is severely worn, only the rubber pad needs to be replaced, thereby reducing waste of resources, being convenient and practical, and having low cost.

[0004] The above-mentioned device cover is placed on the outside of the bearing to protect it, but in actual use, the above-mentioned device needs to be installed and fixed by passing bolts through bolt holes, so during assembly, the bolt holes need to be manually aligned with the mounting holes before the bolts can be tightened. This process is relatively cumbersome, time-consuming and labor-intensive. Utility Model Content

[0005] The utility model aims to provide a main bearing cap of a methanol engine with high sealing performance which is easy to assemble, so as to solve the problem of inconvenience in assembly and fixing in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a main bearing cap of a methanol engine with high sealing performance that is easy to assemble, comprising an engine body using methanol dye, an engine main shaft being rotatably mounted on the side of the engine body, and a bearing body connected to the engine body being mounted on the outside of the engine main shaft, and further comprising:

[0007] The main bearing cover is divided into a rear cover body and a front cover body, and the rear cover body is closely attached to the engine body, and the front cover body is closely attached to the outer surface of the rear cover body;

[0008] The limiting blocks are fixedly installed at the left and right ends of the inner side of the front cover body, and the limiting blocks correspond to the limiting grooves fixedly installed on the outer surface of the rear cover body to quickly align the installation positions;

[0009] A fixing ear with a hole is fixedly installed on the outer edge of the front cover.

[0010] Preferably, a mounting bolt is installed through the interior of the fixing ear, and the mounting bolt corresponds to the position of the mounting hole opened in the rear cover body, and the mounting bolt is threadedly connected to the engine body.

[0011] Preferably, a positioning groove in a strip-shaped structure is provided inside the rear cover body, and the positioning groove and a positioning block fixedly mounted on the side of the engine body are correspondingly engaged with each other.

[0012] Preferably, an adsorption magnetic block which is magnetically adsorbed and fixed to the engine body is fixedly installed on the rear side surface of the rear cover body, and the rear cover body is pre-installed on the outside of the engine body before assembly.

[0013] Preferably, a limiting ring with a three-section structure is fixedly installed in the middle position of the inner side of the front cover body, and the position of the limiting ring and the position of the bearing body correspond to each other.

[0014] Preferably, an adsorption sponge for absorbing lubricating oil is installed at the middle disconnection position of the limit ring, and the adsorption sponge does not contact the bearing body.

[0015] Preferably, an adhesive tape is fixedly installed on the rear surface of the adsorption sponge, and the adsorption sponge forms a disassembly and installation structure with the front cover body through the adhesive tape.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the main bearing cap of the methanol engine with high sealing performance, which is easy to assemble, adopts a new structural design, and its specific contents are as follows:

[0017] 1. By using the cooperation between the front cover and the rear cover, that is, by using the mounting bolts to fix the front cover and the rear cover on the side of the engine body, a relatively good sealing space is formed between the front cover and the rear cover, thereby protecting the bearing body and preventing water and dust from entering;

[0018] Furthermore, the rear cover body is pre-fixed to the outside of the engine body by using an adsorption magnetic block. At this time, the positioning is achieved by the engagement between the positioning groove and the positioning block. Then, the front cover body docking block is fixed and inserted into the docking groove correspondingly to each other, and the front cover body is limited, so that the hole positions are quickly aligned, which is convenient for assembly operations.

[0019] 2. When the bearing body rotates, there is an adsorption sponge on the outside. At this time, the lubricant in the bearing body will be absorbed by the adsorption sponge when it is thrown out under the action of centrifugal force, thereby preventing the lubricant from flying around and making subsequent cleaning inconvenient. The lubricant absorbed in the adsorption sponge can be reused when adding lubricant later to reduce waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the front cover and the rear cover of the utility model in an exploded state;

[0021] Figure 2 This is a schematic diagram of the main structure of the engine of the utility model;

[0022] Figure 3 This is a schematic diagram of the installation relationship between the rear housing and the engine body of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the limit block and the limit groove in the docking state of the utility model;

[0024] Figure 5 For this utility model Figure 4 The enlarged structural diagram at A in the middle;

[0025] Figure 6 This is a schematic diagram of the inner structure of the front cover of the utility model;

[0026] Figure 7 It is a schematic diagram of the rear structure of the adsorption sponge of the utility model.

[0027] In the figure: 1. Engine body; 2. Engine main shaft; 3. Bearing body; 4. Rear cover; 5. Front cover; 6. Limit block; 7. Limit groove; 8. Fixing ear; 9. Mounting bolt; 10. Mounting hole; 11. Positioning groove; 12. Positioning block; 13. Adsorption magnetic block; 14. Limit ring; 15. Adsorption sponge; 16. Adhesive tape. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1: Please refer to Figure 2In order to achieve the purpose of bearing sealing protection, the present embodiment provides the following technical solutions, which specifically disclose: an engine body 1 using methanol dye, an engine main shaft 2 is rotatably installed on the side of the engine main body 1, and a bearing body 3 connected to the engine main body 1 is installed outside the engine main shaft 2, and the main bearing cover is divided into a rear cover body 4 and a front cover body 5. The rear cover body 4 is close to the engine main body 1, and the front cover body 5 is close to the outer surface of the rear cover body 4. A fixing ear 8 with a hole is fixedly installed on the outer edge of the front cover body 5, and a mounting bolt 9 is installed through the inside of the fixing ear 8, and the mounting bolt 9 corresponds to the mounting hole 10 opened inside the rear cover body 4, and the mounting bolt 9 is threadedly connected to the engine main body 1.

[0030] During assembly, the mounting bolt 9 is passed through the fixing ear 8 and the mounting hole 10, and then screwed into the engine body 1 to fix the rear cover body 4 and the front cover body 5. At this time, the relative sealing structure formed between the front cover body 5 and the rear cover body 4 protects the bearing body 3 to prevent external water and dust from entering and affecting the normal use of the bearing body 3.

[0031] Example 2: Please refer to Figure 1-Figure 5 In order to achieve the purpose of rapid assembly, the present embodiment provides the following technical solutions, which specifically disclose: limiting blocks 6 are fixedly installed at the left and right ends of the inner side of the front cover body 5, and the limiting blocks 6 correspond to the limiting grooves 7 fixedly installed on the outer surface of the rear cover body 4 to quickly align the installation position, a positioning groove 11 with a strip-shaped structure is opened inside the rear cover body 4, and the positioning groove 11 corresponds to and engages with the positioning block 12 fixedly installed on the side of the engine body 1, an adsorption magnetic block 13 is fixedly installed on the rear side surface of the rear cover body 4 to be magnetically adsorbed and fixed to the engine body 1, and the rear cover body 4 is pre-installed on the outside of the engine body 1 before assembly.

[0032] When producing the engine body 1, the rear cover body 4 is fixed to the side of the engine body 1 by using the adsorption magnetic block 13 at the rear. At this time, the positioning groove 11 and the positioning block 12 correspond to each other and engage with each other to ensure the correct position of the rear cover body 4. When assembling the front cover body 5, the limit block 6 on the inner side of the front cover body 5 is aligned with the limit groove 7 on the outer surface of the rear cover body 4 and inserted to form a locking state, thereby limiting the position of the front cover body 5. At this time, the installation hole positions are just aligned (that is, the fixing ear 8 and the mounting hole 10 are aligned with the threaded hole position on the engine body 1), so that the staff can quickly screw in the mounting bolt 9 to achieve the purpose of quick assembly.

[0033] Example 3: Please refer to Figure 6 and Figure 7In order to prevent the lubricating oil from flying around and making subsequent cleaning inconvenient, the present embodiment provides the following technical solutions, which specifically disclose: a limiting ring 14 with a three-section structure is fixedly installed at the middle position on the inner side of the front cover body 5, and the position of the limiting ring 14 corresponds to the position of the bearing body 3, an adsorption sponge 15 for adsorbing the lubricating oil is installed at the middle disconnected position of the limiting ring 14, and the adsorption sponge 15 is not in contact with the bearing body 3, an adhesive tape 16 is fixedly installed on the rear surface of the adsorption sponge 15, and the adsorption sponge 15 forms a disassembly and installation structure with the front cover body 5 through the adhesive tape 16.

[0034] During the use of the engine body 1, the bearing body 3 is driven to rotate. At this time, part of the lubricating oil applied to the bearing body 3 will be thrown out under the action of centrifugal force. The thrown-out lubricating oil is absorbed by the outer adsorption sponge 15 to prevent the lubricating oil from flying around. When adding lubricating oil later, the front cover body 5 can be removed and the adsorption sponge 15 can be removed and replaced.

[0035] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly sealed main bearing cap for a methanol engine that is easy to assemble, comprising an engine body (1) using methanol dye, an engine main shaft (2) being rotatably mounted on the side of the engine body (1), and a bearing body (3) connected to the engine body (1) being mounted on the outside of the engine main shaft (2), characterized in that: Also includes: The main bearing cover is divided into two parts, namely a rear cover body (4) and a front cover body (5), and the rear cover body (4) is in close contact with the engine body (1), and the front cover body (5) is in close contact with the outer surface of the rear cover body (4); Limiting blocks (6) are fixedly installed at both left and right ends of the inner side of the front cover body (5), and the limiting blocks (6) correspond to limiting grooves (7) fixedly installed on the outer surface of the rear cover body (4) so ​​as to quickly align the installation positions; The outer edge of the front cover body (5) is fixedly mounted with a fixing ear (8) having a hole thereon.

2. The easily assembled high-sealability methanol engine main bearing cap according to claim 1 is characterized by: A mounting bolt (9) is installed through the interior of the fixing ear (8), and the mounting bolt (9) corresponds to a mounting hole (10) provided inside the rear cover body (4), and the mounting bolt (9) is threadedly connected to the engine body (1).

3. The easily assembled high-sealability methanol engine main bearing cap according to claim 2, characterized in that: A positioning groove (11) in a strip-shaped structure is provided inside the rear cover body (4), and the positioning groove (11) and a positioning block (12) fixedly mounted on the side of the engine body (1) are correspondingly engaged with each other.

4. The easily assembled high-sealability methanol engine main bearing cap according to claim 3 is characterized by: The rear surface of the rear cover (4) is fixedly mounted with an adsorption magnetic block (13) that is magnetically adsorbed and fixed to the engine body (1), and the rear cover (4) is pre-installed on the outside of the engine body (1) before assembly.

5. The easily assembled high-sealability methanol engine main bearing cap according to claim 1, characterized in that: A limiting ring (14) with a three-section structure is fixedly installed at the middle position of the inner side of the front cover body (5), and the position of the limiting ring (14) and the position of the bearing body (3) correspond to each other.

6. The easily assembled high-sealability methanol engine main bearing cap according to claim 5, characterized in that: An adsorption sponge (15) for adsorbing lubricating oil is installed at the middle disconnected position of the limiting ring (14), and the adsorption sponge (15) is not in contact with the bearing body (3).

7. The easily assembled high-seal methanol engine main bearing cap according to claim 6, characterized in that: The adhesive tape (16) is fixedly mounted on the rear surface of the adsorption sponge (15), and the adsorption sponge (15) forms a disassembly and installation structure with the front cover body (5) through the adhesive tape (16).

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