Engine housing

Abstract

The utility model discloses an engine shell, which relates to the technical field of engines, and comprises a left shell and a right shell which are detachably connected through bolts, a cavity used for installing parts is arranged between the left shell and the right shell, a sealing piece is embedded on the inner circumferential wall of the cavity, and the sealing piece is connected with the left shell and the right shell. The section of the sealing piece is matched with the section of the cavity, a plurality of limiting grooves are formed in the end face of the left shell and the end face of the right shell, and a plurality of limiting parts embedded into the limiting grooves are arranged on the sealing piece. And by arranging the sealing piece, the sealing effect between the two shell bodies is ensured when the two shell bodies are mutually fixed, and the service life is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to engine technical field especially relates to a engine housing. BACKGROUND

[0002] Engine is a kind of machine that can be converted into mechanical energy by other forms, including, such as internal combustion engine (reciprocating piston engine), external combustion engine (Stirling engine, steam engine, etc.), jet engine, motor, etc.

[0003] The existing engine is mostly separated shell for the convenience of the installation of internal parts, two shell bodies are fixed by bolt, thereby completing the assembly of the whole engine, but when fixing, only two end surfaces are contacted, if burr appears when casing is processed, or bump appears when installing, the fitting effect between two shell bodies is easily affected, thereby affecting sealing property, oil leakage problem occurs, waste is caused.

[0004] Therefore, a new scheme needs to be proposed to solve this problem. INVENTION CONTENTS

[0005] To solve the above technical problem, the utility model provides the engine housing that can be lubricated by multiple oil paths and help heat dissipation.

[0006] The technical scheme of the utility model is:

[0007] An engine housing, comprising left shell body and right shell body connected by bolt, the left shell body and the right shell body are equipped with cavity for installing parts, the inner peripheral wall of the cavity is embedded with sealing element, the cross section of the sealing element is matched with the cross section of the cavity, a plurality of limiting grooves are formed on the end surface of the left shell body and the right shell body, a plurality of limiting parts embedded in the limiting grooves are arranged on the sealing element.

[0008] The utility model is further provided with, the sealing element includes the covering portion that is in contact with the inner wall of cavity and the embedded portion that is arranged on the outer peripheral wall of covering portion, the end surface of the left shell body and the right shell body is all equipped with the embedding slot for the embedded portion embedding, the limiting part is arranged on the end surface of embedded portion, and the limiting groove is arranged on the inner wall of embedding slot.

[0009] The utility model is further provided with, and there is spacing between the inner side wall of embedding slot and the outer wall of shell body, so that there is contact surface between the left shell body and the right shell body.

[0010] The utility model is further provided with, and a plurality of convex parts that are matched with each other are arranged on the outer peripheral wall of the left shell body and the right shell body, the convex part on the left shell body is equipped with blind hole, the inner thread is arranged on the inner peripheral wall of blind hole, and the convex part on the right shell body is equipped with counterbore hole communicated with blind hole.

[0011] The utility model further sets up, the limit groove and the limit portion of excess fit on the left casing, the limit groove and the limit portion clearance fit on the right casing.

[0012] The utility model further sets up, the depth of two embedding grooves of left casing and right casing is less than the thickness of embedding portion.

[0013] The utility model further sets up, the limit portion is cylindrical and the end face is circular arc, the section of limit groove on the left casing gradually reduces along the opening to the inner bottom wall, the section of limit groove on the right casing is rectangular and cooperates with the limit portion.

[0014] The utility model has the beneficial technical effects of:

[0015] By setting sealing element between left casing and right casing, sealing element cooperates with cavity opening section, when left casing and right casing are fixed by bolt, left casing and right casing gradually fit and extrude embedding portion, make embedding portion deformation, can fit embedding groove more, guarantee sealing effect, can avoid burr on the end face of mutual fit of left casing and right casing, fit imprecise, influence the sealing effect between left casing and right casing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the utility model;

[0017] Figure 2 It is the explosion drawing of the utility model;

[0018] Figure 3 It is Figure 1 The enlarged view of A in figure.

[0019] In the drawing: 1, left casing;2, right casing;3, sealing element;31, covering portion;32, embedding portion;4, embedding groove;5, limit portion;6, limit groove. DETAILED DESCRIPTION

[0020] In order to can more clearly understand the technical means of the utility model, and can be implemented according to the content of specification, the specific embodiment of the utility model is further described in detail below, the following examples are used to explain the utility model, but not to limit the scope of the utility model.

[0021] An engine shell, such as Figures 1-3As shown, including through bolt detachable connection left shell 1 and right shell 2, left shell 1 and right shell 2 between the cavity for mounting parts, the inner wall of the cavity is fitted with sealing element 3, the cross section of sealing element 3 with the cross section of the cavity, the end face of left shell 1 and right shell 2 is provided with a plurality of limiting groove 6, sealing element 3 is provided with embedded in the limiting groove 6 of a plurality of limiting part 5.

[0022] Sealing element 3 includes the covering part 31 and the embedded part 32 which are integrally arranged on the outer wall of the covering part 31, and the inner wall of the cavity is in contact with the covering part 31. The sealing element 3 is made of rubber material. The end face of the left shell 1 and the right shell 2 is provided with the embedding groove 4 for embedding the embedded part 32. The limiting part 5 is arranged on the end face of the embedded part 32. The limiting groove 6 is arranged on the inner wall of the embedding groove 4. The limiting part 5 and the limiting groove 6 can position the sealing element 3, thereby ensuring the installation effect and the sealing effect of the sealing element 3. The inner wall of the embedding groove 4 and the outer wall of the shell have a spacing, so that the left shell 1 and the right shell 2 have a contact surface. When the left shell 1 and the right shell 2 are fixed, the two shells are completely adhered through the contact surface, thereby further ensuring the sealing effect. The arrangement of the embedding groove 4 makes the sealing element 3 more stable between the left shell 1 and the right shell 2.

[0023] The outer wall of the left shell 1 and the right shell 2 is provided with a plurality of protrusions which are matched with each other. The protrusion on the left shell 1 is provided with a blind hole. The inner wall of the blind hole is provided with an internal thread. The protrusion on the right shell 2 is provided with a countersunk hole which is communicated with the blind hole. When the left shell 1 and the right shell 2 are fixed by the bolt, the protrusion can avoid the embedding groove 4 and will not touch the sealing element 3, thereby ensuring the use effect. The contact surface of the left shell 1 and the right shell 2 is also provided with a threaded hole which is communicated with each other, thereby strengthening the fixing effect of the left shell 1 and the right shell 2.

[0024] The limiting part 5 is columnar and the end face is arc-shaped. The cross section of the limiting groove 6 on the left shell 1 gradually decreases from the opening to the inner bottom wall. When the limiting part 5 is completely inserted into the limiting groove 6 on the left shell 1, the cross section of the limiting part 5 is larger than the hole diameter of the limiting groove 6, so that the limiting groove 6 on the left shell 1 is interference fitted with the limiting part 5. The interference fitting makes the relative fixation of the sealing element 3 and the left shell 1 more stable. Since the sealing element 3 is made of rubber material, the limiting part 5 is also made of rubber material. When the interference fitting occurs, the limiting part 5 will be deformed, so that the limiting part 5 is more fully adhered to the inner wall of the limiting groove 6, thereby ensuring the sealing effect. The cross section of the limiting groove 6 on the right shell 2 is rectangular and matched with the limiting part 5, so that the limiting groove 6 on the right shell 2 is clearance fitted with the limiting part 5. The clearance fitting makes the limiting part 5 more convenient to be inserted into the limiting groove 6 on the right shell 2, thereby making the sealing element 3 more convenient to be placed in the embedding groove 4.

[0025] The sum of the depths of the two embedding grooves 4 of the left shell 1 and the right shell 2 is less than the thickness of the embedding portion 32, and the thickness of the embedding portion 32 is 1 mm more than the sum of the depths of the two embedding grooves 4. When the left shell 1 and the right shell 2 are fixed, if the left shell 1 and the right shell 2 are completely fitted, the embedding portion 32 is extruded, so that the embedding portion 32 is deformed, thereby being more fitted with the embedding groove 4, and the sealing effect is increased.

[0026] Working principle: the embedding portion 32 on the sealing element 3 is placed into the embedding groove 4 on the left shell 1, and the limiting portion 5 on the embedding portion 32 is aligned with the limiting groove 6 in the embedding groove 4. Since the end face of the limiting portion 5 is annular, it has a good guiding effect, so that the limiting portion 5 is more convenient to extend into the limiting groove 6. The cooperation of the limiting groove 6 and the limiting portion 5 limits the displacement of the sealing element 3. When the installation of the parts in the cavity is completed, the end face of the right shell 2 is close to the left shell 1, so that the embedding portion 32 on the sealing element 3 is placed into the embedding groove 4 on the right shell 2, and the limiting portion 5 extends into the limiting groove 6, which has a good positioning effect. At this time, the corresponding protrusions on the outer periphery of the left shell 1 and the right shell 2 are aligned, and the blind hole and the counterbore are communicated. By using the bolt, the two are fixed. When the bolt is fixed, the left shell 1 and the right shell 2 are gradually fitted and extruded on the embedding portion 32, so that the embedding portion 32 is deformed, thereby being more fitted with the embedding groove 4, ensuring the sealing effect, and avoiding burrs on the end faces of the left shell 1 and the right shell 2, which are fitted imprecisely, affecting the sealing effect between the left shell 1 and the right shell 2. When the sealing element 3 needs to be replaced, only the bolt needs to be loosened, and the left shell 1 and the right shell 2 are separated, so that the sealing element 3 can be replaced, ensuring the service life of the overall structure.

[0027] The above is only the preferred embodiment of the present application, and is not used to limit the present application. It should be pointed out that, for ordinary skilled persons in the technical field, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection range of the present application.

Claims

1. An engine housing characterized by: The utility model provides a left casing (1) and right casing (2) including through bolt detachable connection, and the left casing (1) and right casing (2) between be equipped with the cavity for installing spare parts, the inner peripheral wall of the cavity is fitted with sealing element (3), the cross section of sealing element (3) cooperates with the cross section of cavity, the end face of left casing (1) and right casing (2) is equipped with a plurality of limiting slot (6), and the sealing element (3) is equipped with a plurality of limiting portion (5) embedded into limiting slot (6).

2. The engine enclosure of claim 1, wherein: The sealing element (3) includes the covering portion (31) of the inner wall of the cavity and the embedding portion (32) of the outer peripheral wall of the covering portion (31), the end face of the left casing (1) and the right casing (2) is equipped with the embedding slot (4) for embedding the embedding portion (32), the limiting portion (5) is arranged on the end face of the embedding portion (32), and the limiting slot (6) is arranged on the inner wall of the embedding slot (4).

3. An engine enclosure according to claim 2, wherein: The inner side wall of the embedding slot (4) and the outer wall of the casing exist spacing, so that the left casing (1) and the right casing (2) exist contact surface.

4. The engine enclosure of claim 3, wherein: The outer peripheral wall of the left casing (1) and the right casing (2) is equipped with a plurality of convex portions matched with each other, the convex portion on the left casing (1) is equipped with a blind hole, the inner thread is arranged on the inner peripheral wall of the blind hole, and the convex portion on the right casing (2) is equipped with a countersunk hole communicated with the blind hole.

5. The engine enclosure of claim 2, wherein: The limiting slot (6) on the left casing (1) is in interference fit with the limiting portion (5), and the limiting slot (6) on the right casing (2) is in clearance fit with the limiting portion (5).

6. The engine enclosure of claim 2, wherein: The depth of the two embedding slots (4) of the left casing (1) and the right casing (2) is less than the thickness of the embedding portion (32).

7. The engine enclosure of claim 5, wherein: The limiting portion (5) is columnar and the end face is circular arc, the cross section of the limiting slot (6) on the left casing (1) gradually reduces from the opening to the inner bottom wall, and the cross section of the limiting slot (6) on the right casing (2) is rectangular and cooperates with the limiting portion (5).

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