Split type heat dissipation crankcase

Abstract

The utility model relates to the technical field of crankcase, and disclose a kind of split heat dissipation crankcase, including crankcase body and cylinder liner, the crankcase body is fixedly connected with connecting seat, the connecting seat is fixedly connected with sealing assembly, the inside through connection of the cylinder liner is equipped with anti-inclination component, the sealing assembly includes the sealing groove one fixedly connected in the top of connecting seat, the one side fixedly connected with fixed boss of sealing groove one, the anti-inclination component includes the stud bolt through connection in the inside of cylinder liner, the one side of stud bolt is connected with the positioning sleeve of screw thread.The bottom of positioning sleeve is fixedly connected with o type rubber ring.The setting of sealing assembly, reached the reliable sealing effect, enhanced the sealing performance between crankcase body and cylinder liner, prevent the tiny sliding of sealing gasket, firmly combine together with crankcase body and cylinder liner, ensure the integrity and stability of connection.

Description

Technical Field

[0001] This utility model relates to the field of crankcase technology, and in particular to a split-type heat dissipation crankcase. Background Technology

[0002] The split-type crankcase and cylinder liner have extremely high sealing requirements. It must withstand multiple, demanding challenges from within the engine: extremely high combustion pressures threaten to break it, drastic temperature fluctuations make its materials prone to fatigue and aging, and it must reliably isolate high-temperature engine oil, high-pressure coolant, and corrosive gases produced by combustion. Any leak can directly lead to oil emulsification, coolant loss, power reduction, or even serious engine damage. The crankcase and cylinder liner must be precisely vertically installed to ensure the piston's reciprocating motion within the cylinder liner always maintains a straight trajectory, avoiding additional radial forces caused by tilting. Insufficient vertical precision will cause uneven wear between the piston and cylinder liner wall, disrupting the transmission coordination between the crankshaft and connecting rod, subjecting the connecting rod bearings to uneven impact loads, and potentially leading to serious malfunctions such as crankshaft deformation and bearing overheating failure over long-term operation.

[0003] Patent document CN222963007U discloses a split crankcase for a refrigerator compressor, relating to the field of compressor crankcase technology. When the lubricating oil temperature is too high, a cooling box absorbs heat to cool the lubricating oil. At the same time, the coolant enters the collection tank and heat dissipation fins through the connecting pipe for further cooling, assisted by a fan. When the temperature is too low, a heating rod heats the lubricating oil. The temperature difference controller controls and regulates the temperature to prevent excessively high or low oil temperatures from affecting the lubrication effect and reducing mechanical wear. By maintaining the lubricating oil temperature within a certain range, the lubrication effect is increased, machine wear is reduced, and working performance and service life are enhanced.

[0004] However, the split crankcase of this refrigerator compressor makes it difficult to securely connect the crankcase body and the cylinder liner during use, which can easily lead to the risk of slight slippage of the sealing gasket and reduce the sealing performance between the crankcase and the cylinder liner. Utility Model Content

[0005] (a) Technical problems to be solved The purpose of this invention is to provide a split-type cooling crankcase to solve the problems mentioned in the background art, such as the difficulty in firmly connecting the crankcase body and the cylinder liner, the risk of slight slippage of the sealing gasket, and the reduced sealing performance between the crankcase and the cylinder liner.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a split-type cooling crankcase, comprising a crankcase body and a cylinder liner, wherein a connecting seat is fixedly connected to the crankcase body, a sealing assembly is fixedly connected to the connecting seat, an anti-misalignment assembly is internally connected to the cylinder liner, the sealing assembly includes a sealing groove fixedly connected to the top of the connecting seat, a fixing boss is fixedly connected to one side of the sealing groove, and the anti-misalignment assembly includes a double-ended bolt internally connected to the cylinder liner, a positioning sleeve is threadedly connected to one side of the double-ended bolt.

[0007] As a further embodiment of this utility model, an O-ring is fixedly connected to the bottom of the positioning sleeve, a gasket is fixedly connected to the bottom of the O-ring, and a fixing nut is fixedly connected to the bottom of the gasket.

[0008] As a further embodiment of this utility model, a conical head is fixedly connected to the bottom of the double-ended bolt, a clamping screw is connected through one side of the fixing boss, and a clamping nut is threadedly connected to the surface of the clamping screw.

[0009] As a further embodiment of this utility model, a labyrinth sealing gasket is fixedly connected to the top of the sealing groove, and a fixing angle is fixedly connected to the side of the labyrinth sealing gasket.

[0010] As a further embodiment of this utility model, an elastic metal ring is fixedly connected inside the labyrinth sealing gasket, and a sealing groove is fixedly connected to the top of the fixed corner.

[0011] As a further embodiment of this utility model, the inner wall of the labyrinth sealing gasket is fixedly connected with a sealing lip, and the front of the fixed corner is provided with a pressing hole.

[0012] As a further embodiment of this utility model, a heat sink is fixedly connected to one side of the cylinder liner, and a round head is fixedly connected to the top of the double-ended bolt.

[0013] (III) Beneficial Effects This utility model provides a split-type heat dissipation crankcase, which has the following beneficial effects: 1. This split-type cooling crankcase, through the setting of the sealing components, achieves a fixed limit at the fixed angle by tightening screws passing through the crankcase boss and the cylinder groove during use. At the same time, the tightening force of the screws ensures that the labyrinth seal gasket tightly fits against the mating surface of the crankcase and the cylinder. This not only achieves a firm connection between the two components, but also prevents internal fluid leakage through the compression deformation of the labyrinth seal gasket and the labyrinth structure, thus achieving a reliable sealing effect. This enhances the sealing performance between the crankcase body and the cylinder liner, prevents minor slippage of the seal gasket, and firmly connects the crankcase body and the cylinder liner together, ensuring the integrity and stability of the connection.

[0014] 2. This split-type cooling crankcase, through the setting of the anti-misalignment component, reduces radial offset when the double-ended bolt is screwed into the positioning groove by screwing the positioning sleeve thread into the corresponding groove on the crankcase. By screwing one end of the cone of the double-ended bolt into the positioning groove, the cone surface automatically corrects slight tilt, thereby preventing misalignment, ensuring the centering of the double-ended bolt connection, reducing the requirement for absolute precision of the operator, and providing good fault tolerance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the disassembled structure of this utility model; Figure 3 This is a schematic diagram of the sealing assembly structure of this utility model; Figure 4 This is a schematic diagram of the anti-tilting component structure of this utility model.

[0016] In the diagram: 1. Crankcase body; 2. Cylinder liner; 3. Connecting seat; 4. Sealing assembly; 401. Sealing groove one; 402. Fixing boss; 5. Anti-misalignment assembly; 501. Double-ended bolt; 502. Positioning sleeve; 6. Clamping screw; 7. Clamping nut; 8. Labyrinth seal gasket; 9. Conical head; 10. Fixing angle; 11. Elastic metal ring; 12. Sealing groove two; 13. O-ring; 14. Gasket; 15. Fixing nut; 16. Sealing lip; 17. Clamping hole; 18. Heat sink fin; 19. Round head. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figures 1 to 4 This utility model provides a technical solution: a split-type heat dissipation crankcase, including a crankcase body 1 and a cylinder liner 2. The crankcase body 1 is fixedly connected to a connecting seat 3, and a sealing component 4 is fixedly connected to the connecting seat 3. An anti-misalignment component 5 is internally connected to the cylinder liner 2. The sealing component 4 includes a sealing groove 401 fixedly connected to the top of the connecting seat 3, and a fixing boss 402 fixedly connected to one side of the sealing groove 401. The anti-misalignment component 5 includes a double-ended bolt 501 internally connected to the cylinder liner 2, and a positioning sleeve 502 is threadedly connected to one side of the double-ended bolt 501.

[0019] The bottom of the positioning sleeve 502 is fixedly connected to an O-ring rubber ring 13, the bottom of the O-ring rubber ring 13 is fixedly connected to a gasket 14, and the bottom of the gasket 14 is fixedly connected to a fixing nut 15. By setting the fixing nut 15, the fixing nut 15 axially presses and locks the double-ended bolt 501 to the inner top wall of the crankcase body 1. The O-ring rubber ring 13 and the gasket 14 ensure sealing and uniform pressing, preventing loosening and displacement.

[0020] The bottom of the double-ended bolt 501 is fixedly connected to a cone head 9, and a clamping screw 6 is connected through one side of the fixed boss 402. A clamping nut 7 is threadedly connected to the surface of the clamping screw 6. By setting the clamping nut 7, the clamping nut 7 cooperates with the clamping screw 6 to apply a pre-tightening force to the fixed boss 402 together with the sealing assembly 4 towards the sealing groove 12, thereby improving the sealing surface fit and sealing reliability.

[0021] A labyrinth sealing gasket 8 is fixedly connected to the top of the sealing groove 401, and a fixing angle 10 is fixedly connected to the side of the labyrinth sealing gasket 8. By setting the fixing angle 10, the fixing angle 10 provides lateral positioning and rigid support for the labyrinth sealing gasket 8, ensuring accurate assembly position and preventing circumferential movement.

[0022] An elastic metal ring 11 is fixedly connected inside the labyrinth sealing gasket 8, and a sealing groove 2 12 is fixedly connected to the top of the fixed angle 10. Through the setting of the sealing groove 2 12, the sealing groove 2 12 and the sealing groove 1 401 work together to press the sealing labyrinth sealing gasket 8, reduce the probability of oil and gas leakage, and improve sealing redundancy and pressure resistance.

[0023] The inner wall of the labyrinth sealing gasket 8 is fixedly connected with a sealing lip 16, and the front of the fixing angle 10 is provided with a pressing hole 17. Through the setting of the pressing hole 17, the pressing hole 17 cooperates with the pressing screw 6 to limit and fix the pressing screw 6.

[0024] A heat sink 18 is fixedly connected to one side of the cylinder liner 2, and a round head 19 is fixedly connected to the top of the double-ended bolt 501. The round head 19 serves to prevent the sharp edge of the top of the double-ended bolt 501 from scratching the operator or damaging surrounding parts, while also improving the safety of hand operation during assembly.

[0025] In this invention, the working steps of the device are as follows: First step: During use, the clamping screw 6 passes through the fixing boss 402 of the crankcase body 1 and the sealing groove 12 at the bottom of the cylinder liner 2, forming a fixed limit on the fixing angle 10; at the same time, the tightening force of the clamping screw 6 makes the labyrinth seal 8 fit tightly against the mating surface of the crankcase body 1 and the cylinder liner 2, which not only achieves a firm connection between the two parts, but also blocks internal fluid leakage through the compression deformation and labyrinth structure of the labyrinth seal 8, thereby achieving a reliable sealing effect; The second step: During use, by setting the anti-tilting component 5, the positioning sleeve 502 is screwed into the corresponding groove on the crankcase body 1, reducing radial offset when the double-ended bolt 501 is screwed into the positioning groove. By screwing one end of the cone head 9 of the double-ended bolt 501 into the positioning groove, the cone surface automatically corrects slight tilt, thereby preventing tilting. It should be noted that the device structure and drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system, and control system of the device is not fully described. However, those skilled in the art can clearly understand the specifics of its power mechanism, power supply system, and control system, provided they understand the principle of the above utility model. The control method in the application document is automatic control through a controller, and the control circuit of the controller can be implemented by those skilled in the art through simple programming. All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A split-type cooling crankcase, comprising a crankcase body (1) and a cylinder liner (2), characterized in that: The crankcase body (1) is fixedly connected to a connecting seat (3), and a sealing component (4) is fixedly connected to the connecting seat (3). An anti-tilting component (5) is connected through the inside of the cylinder liner (2). The sealing assembly (4) includes a sealing groove (401) fixedly connected to the top of the connecting seat (3), and a fixing boss (402) is fixedly connected to one side of the sealing groove (401). The anti-tilting component (5) includes a double-ended bolt (501) that passes through the inside of the cylinder liner (2), and a positioning sleeve (502) is threadedly connected to one side of the double-ended bolt (501).

2. The split-type heat dissipation crankcase according to claim 1, characterized in that: The bottom of the positioning sleeve (502) is fixedly connected to an O-ring (13), the bottom of the O-ring (13) is fixedly connected to a gasket (14), and the bottom of the gasket (14) is fixedly connected to a fixing nut (15).

3. A split-type heat dissipation crankcase according to claim 1, characterized in that: The bottom of the double-ended bolt (501) is fixedly connected to a cone head (9), and a clamping screw (6) is connected through one side of the fixed boss (402). A clamping nut (7) is threadedly connected to the surface of the clamping screw (6).

4. A split-type heat dissipation crankcase according to claim 3, characterized in that: The top of the sealing groove (401) is fixedly connected to a labyrinth sealing pad (8), and the side of the labyrinth sealing pad (8) is fixedly connected to a fixing angle (10).

5. A split-type heat dissipation crankcase according to claim 4, characterized in that: The labyrinth sealing gasket (8) is internally fixedly connected to an elastic metal ring (11), and the top of the fixed angle (10) is fixedly connected to a sealing groove (12).

6. A split-type heat dissipation crankcase according to claim 4, characterized in that: The inner wall of the labyrinth sealing gasket (8) is fixedly connected with a sealing lip (16), and the front of the fixing angle (10) is provided with a pressing hole (17).

7. A split-type heat dissipation crankcase according to claim 1, characterized in that: A heat sink (18) is fixedly connected to one side of the cylinder liner (2), and a round head (19) is fixedly connected to the top of the double-ended bolt (501).

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