An insulating and sealing type engine end cover and a manufacturing process thereof

Abstract

The application relates to the technical field of engines, in particular to an insulation sealing type engine end cover which comprises a connecting plate, the connecting plate is circular, a connecting sleeve is fixedly connected to the connecting plate, a ring body is fixedly connected to the middle part of the connecting plate, a plurality of heat dissipation grooves are arranged on the connecting plate, a plurality of air bags are arranged outside the heat dissipation grooves and fixedly connected to the connecting plate, the air bags are in a closed loop structure, a plurality of air charging mechanisms are arranged on the connecting plate, and sealing pads are fixedly connected to the air bags. The application further provides a manufacturing process of the insulation sealing type engine end cover. The application has the advantages of enhanced sealing effect and prevention of dust entering.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engine, in particular to an insulation sealing type engine end cover and a manufacturing process thereof. BACKGROUND

[0002] The engine end cover is a rear cover installed behind the engine shell, commonly known as "end cover". Since the engine generates a large amount of heat during operation, in order to facilitate heat dissipation, a heat dissipation groove is generally provided on the end cover so that the engine can discharge heat through the heat dissipation groove during operation. However, due to the provision of the heat dissipation groove, external dust is easy to enter the engine from the heat dissipation groove, which can affect the normal operation of the engine. In order to avoid this situation, we propose an insulation sealing type engine end cover and a manufacturing process thereof. SUMMARY

[0003] The purpose of the present application is to solve the problem of the prior art that external dust is easy to enter the engine from the heat dissipation groove, and to provide an insulation sealing type engine end cover and a manufacturing process thereof.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] An insulation sealing type engine end cover is designed, which comprises a connecting plate, the connecting plate is circular, a connecting sleeve is fixedly connected to the connecting plate, a ring body is fixedly connected to the middle part of the connecting plate, a plurality of heat dissipation grooves are formed in the connecting plate, a plurality of air bags are fixedly connected to the outer side of the heat dissipation grooves, the air bags are in closed loop structure, a plurality of inflation mechanisms are arranged on the connecting plate, and a sealing pad is fixedly connected to each air bag.

[0006] Preferably, the inflation mechanism comprises a conduit, an air inlet valve and a through pipe, the conduit is in ring structure, the conduit is connected to the connecting plate through a fixing mechanism, the air bag is connected to the conduit through the through pipe, and the air inlet valve is connected to the conduit.

[0007] Preferably, the fixing mechanism comprises a pipe clamp, the pipe clamp is sleeved on the conduit, and the pipe clamp is threadedly connected to the connecting plate through bolts.

[0008] Preferably, a plurality of support frames are fixedly connected to the connecting plate, and the support frames are located on the inner side of the air bags.

[0009] Preferably, a plurality of fixing ears are fixedly connected to the periphery of the connecting sleeve, and a through hole is formed in each fixing ear.

[0010] Preferably, the inner wall of the connecting sleeve is fixedly connected with a supporting ring, the cross section of the supporting ring is triangular, and the other straight side of the supporting ring is fixedly connected with the connecting plate.

[0011] Preferably, the inner surface of the connecting sleeve and the connecting plate are coated with an insulating layer.

[0012] Preferably, the insulating layer is made of cobalt naphthenate, butanol, oxalic acid polyester, linoleic acid, defoaming agent and metal ceramic particles, and the weight ratio of the cobalt naphthenate, butanol, oxalic acid polyester, linoleic acid, defoaming agent and metal ceramic particles is 2:5:30:5:1:2.

[0013] First, the metal ceramic particles are heated to a temperature of 150-180 DEG C, and the holding time is 2-3h;

[0014] Then, the heated metal ceramic particles are ground to pass through a 200-mesh sieve;

[0015] Finally, the butanol, oxalic acid polyester and linoleic acid are mixed, the cobalt naphthenate and the ground and filtered metal ceramic particles are added, and stirring is performed for 1-2h, and then the defoaming agent is added and stirred for 2h.

[0016] The application also provides a manufacturing process of the insulating and sealing type engine end cover, which comprises the following steps:

[0017] S1, selecting an alloy plate, processing the plate into a circular plate and a ring-shaped sleeve through a lathe, and opening a slot hole in the circular plate to form a heat dissipation slot, and putting a ring body into the circular plate through the middle part of the circular plate and welding connection;

[0018] S2, welding a fixed lug around the ring-shaped sleeve, and then welding the circular plate and the ring-shaped sleeve to form an end cover;

[0019] S3, polishing the inner wall and the outer wall of the end cover to remove burrs, and coating an insulating layer on the inner surface of the end cover;

[0020] S4, bonding a sealing gasket on the air bag;

[0021] S5, installing the air bag on the outer side of the heat dissipation slot, then fixing and installing a conduit through a fixing mechanism, and finally installing a lead-through pipe to make the air bag communicate with the conduit;

[0022] S6, detecting the air tightness of the air bag by injecting gas into the air inlet valve, and storing in the warehouse after passing the detection.

[0023] The insulating and sealing type engine end cover and the manufacturing process thereof have the beneficial effects that the inflation mechanism inflates the air bag, the air bag drives the sealing gasket to move, the sealing gasket deforms, the sealing gasket closely adheres to the abutting surface, the sealing effect is enhanced, and the entry of dust is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The structure diagram of the insulating and sealing type engine end cover is provided.

[0025] Figure 2 The structure diagram of the insulating and sealing type engine end cover is provided. Figure 1

[0026] Figure 3 The structure diagram of the insulating and sealing type engine end cover is provided. Figure 2

[0027] Figure 4 The structure diagram of the insulating and sealing type engine end cover is provided. Figure 3

[0028] In the figure: connecting plate 1, connecting sleeve 2, fixing lug 3, heat dissipation groove 4, guide pipe 5, ring body 6, air inlet valve 7, pipe clamp 8, air bag 9, sealing gasket 10, support frame 11, guide pipe 12, support ring 13. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0030] Embodiment 1

[0031] With reference to Figures 1-4 The insulating and sealing type engine end cover comprises a connecting plate 1, the connecting plate 1 is circular, the connecting plate 1 is fixedly connected with a connecting sleeve 2, the middle part of the connecting plate 1 is fixedly connected with a ring body 6, and a plurality of heat dissipation grooves 4 are arranged on the connecting plate 1. The heat dissipation grooves 4 are designed to discharge heat of the engine.

[0032] ​​​A plurality of heat dissipation grooves 4 are provided with air bags 9 fixedly connected to the connecting plate 1, the plurality of air bags 9 are in a closed loop structure, the plurality of connecting plates 1 are provided with an inflation mechanism, the plurality of air bags 9 are fixedly connected with sealing pads 10, by adopting the design of the sealing pad 10, when the end cover is fixed, the sealing pad 10 abuts against the engine, and since the sealing pad 10 is designed in a closed loop, the sealing effect is achieved, preventing dust from entering the engine from the heat dissipation grooves 4, and the inflation mechanism inflates the air bags 9, causing the air bags 9 to expand, since the engine is irregular when the sealing pad 10 abuts against it, it is not a flat surface, and the air bag 9 moves the sealing pad 10, causing the sealing pad 10 to deform, so that it can change according to the abutting surface, making the sealing pad 10 tightly fit, enhancing the sealing effect.

[0033] The inflation mechanism includes a conduit 5, an air inlet valve 7 and a through pipe 12, the conduit 5 is in a ring structure, the conduit 5 is connected to the connecting plate 1 through a fixing mechanism, the air bag 9 is connected to the conduit 5 through the through pipe 12, and the air inlet valve 7 is connected to the conduit 5, by adopting the inflator, the air inlet valve 7 is inflated, thereby being guided through the conduit 5 and entering each air bag through the through pipe 12.

[0034] The fixing mechanism includes a pipe clamp 8, the pipe clamp 8 is sleeved on the conduit 5, and the pipe clamp 8 is threadedly connected to the connecting plate 1 through bolts, by adopting the design of the pipe clamp 8 and the bolts, the conduit 5 can be fixed and disassembled.

[0035] The connecting sleeve 2 is fixedly connected with fixing ears 3 around the periphery, a plurality of through holes are formed in the fixing ears 3, and the connecting sleeve 2 is fixed by inserting bolts into the through holes.

[0036] The inner surfaces of the connecting sleeve 2 and the connecting plate 1 are coated with an insulating layer, and the insulating layer plays an insulating role to prevent the end cover from conducting electricity.

[0037] The insulating layer is made of cobalt naphthenate, butanol, oxalic acid polyester, linoleic acid, defoaming agent and metal ceramic particles, and the weight ratio of the cobalt naphthenate, butanol, oxalic acid polyester, linoleic acid, defoaming agent and metal ceramic particles is 2:5:30:5:1:2.

[0038] First, the metal ceramic particles are heated to a temperature of 150-180 degrees Celsius, and the holding time is 2-3 hours.

[0039] Then, the heated metal ceramic particles are ground and sieved through a 200-mesh sieve.

[0040] Finally, the butanol, oxalic acid polyester and linoleic acid are mixed, the cobalt naphthenate and the ground and filtered metal ceramic particles are added, and stirring and mixing are performed for 1-2 hours, and then the defoaming agent is added and stirred for 2 hours.

[0041] In the installation, the end cover is fixedly installed, air is pumped from the air inlet valve 7 by using the air pump, the air is guided through the conduit 5, enters into each air bag through the guide pipe 12, the air bag 9 is inflated, the air bag 9 drives the sealing gasket 10 to move, the sealing gasket 10 is deformed, and the sealing gasket 10 is tightly attached to the engine according to the abutting surface.

[0042] The application further provides a manufacturing process of the insulating and sealing type engine end cover.

[0043] S1, selecting an alloy plate, processing the plate into a circular plate and a ring-shaped sleeve through a lathe, and opening a slot hole on the circular plate to form a heat dissipation slot 4, and punching a hole in the middle of the circular plate and welding a ring body 6;

[0044] S2, welding a fixed lug 3 around the ring-shaped sleeve, and then welding the circular plate and the ring-shaped sleeve to form the end cover;

[0045] S3, polishing the inner wall and the outer wall of the end cover to remove burrs, and coating an insulating layer on the inner surface of the end cover, so that the smoothness of the cover plate surface is ensured, and the air bag 9 is prevented from being punctured by burrs;

[0046] S4, bonding the sealing gasket 10 to the air bag 9;

[0047] S5, installing the air bag 9 outside the heat dissipation slot 4, then fixedly installing the conduit 5 through a fixing mechanism, and finally installing the guide pipe 12 to communicate the air bag 9 and the conduit 5;

[0048] S6, detecting the air tightness of the air bag 9 by pumping air into the air inlet valve 7, and storing in the warehouse after passing the detection.

[0049] Example 2

[0050] When the air bag 9 is inflated, it also expands inward, so that the air bag 9 blocks the heat dissipation slot 4, thereby affecting the heat dissipation effect. Figures 1-4 As another preferred embodiment of the application, a plurality of support frames 11 are fixedly connected to the connecting plate 1 on the basis of example 1, the support frames 11 are located on the inner side of the air bag 9, the support frames 11 are used to support the air bag 9, prevent the air bag from expanding inward, and thereby ensure the heat dissipation effect.

[0051] Example 3

[0052] As another preferred embodiment of the application, a plurality of support frames 11 are fixedly connected to the connecting plate 1 on the basis of example 1, the support frames 11 are located on the inner side of the air bag 9, the support frames 11 are used to support the air bag 9, prevent the air bag from expanding inward, and thereby ensure the heat dissipation effect. Figure 2As another preferred embodiment of the present application, on the basis of Embodiment 2, a support ring 13 is fixedly connected to the inner wall of the connecting sleeve 2, the cross section of the support ring 13 is triangular, and the other straight angle side of the support ring 13 is fixedly connected to the connecting plate 1. By adopting the design of the support ring 13, the connecting effect between the connecting sleeve 2 and the connecting plate 1 is enhanced, and the disengagement is prevented.

[0053] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art, according to the technical solution and inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, should be covered within the protection scope of the present application.

Claims

1. An insulating and sealing type engine end cover comprising a connecting plate (1), characterized in that, The connecting plate (1) is circular, the connecting sleeve (2) is fixedly connected to the connecting plate (1), the ring body (6) is fixedly connected to the middle part of the connecting plate (1), a plurality of heat dissipation grooves (4) are formed in the connecting plate (1), the air bags (9) are fixedly connected to the outer sides of the heat dissipation grooves (4), the air bags (9) are in a closed loop structure, the inflating mechanism is arranged on the connecting plate (1), and the sealing gaskets (10) are fixedly connected to the air bags (9). The inflating mechanism comprises the conduit (5), the air inlet valve (7) and the through pipe (12), the conduit (5) is in a ring structure, the conduit (5) is connected to the connecting plate (1) through the fixing mechanism, the air bags (9) are communicated with the conduit (5) through the through pipe (12), the air inlet valve (7) is communicated with the conduit (5), and the fixing mechanism comprises the pipe clamp (8). A plurality of support frames (11) are fixedly connected to the connecting plate (1) and located on the inner sides of the air bags (9).

2. The insulating sealed engine end cover according to claim 1, wherein The connecting sleeve (2) is fixedly connected with the fixing ears (3) around the connecting sleeve (2), and the through holes are formed in the fixing ears (3).

3. The insulated sealed engine end cover of any one of claims 1-2, wherein, The support ring (13) is fixedly connected to the inner wall of the connecting sleeve (2), the cross section of the support ring (13) is triangular, and the other straight side of the support ring (13) is fixedly connected to the connecting plate (1).

4. The insulating sealed engine end cover according to claim 3, wherein The connecting sleeve (2) and the inner surface of the connecting plate (1) are coated with an insulating layer.

5. The insulated sealed engine end cover of claim 4, wherein, The insulating layer is made of cobalt naphthenate, butanol, oxalic acid polyester, linoleic acid, defoaming agent and metal ceramic microparticles, and the weight ratio of the cobalt naphthenate, butanol, oxalic acid polyester, linoleic acid, defoaming agent and metal ceramic microparticles is 2:5:30:5:1:

2. First, the metal ceramic microparticles are heated to a temperature of 150-180 DEG C, and the holding time is 2-3 h. Then, the heated metal ceramic microparticles are ground and sieved through a 200-mesh sieve. Finally, the butanol, oxalic acid polyester and linoleic acid are mixed, the cobalt naphthenate and the ground and filtered metal ceramic microparticles are added, and stirring is performed for 1-2 h, and then the defoaming agent is added and stirred for 2 h.

6. The manufacturing process of an insulating sealed engine end cover according to claim 5, wherein, The following steps are included: S1, selecting an alloy plate, processing the plate into a circular plate and a ring sleeve through a lathe, forming a heat dissipation groove (4) by forming a slot in the circular plate, and welding a ring body (6) into the middle part of the circular plate; S2, welding the fixing ears (3) around the ring sleeve, and then welding the circular plate and the ring sleeve to form an end cover; S3, polishing the inner wall and the outer wall of the end cover to remove burrs, and coating the inner surface of the end cover with an insulating layer; S4, bonding the sealing gaskets (10) to the air bags (9). S5, install the air bag (9) on the outside of the heat dissipation groove (4), then fix and install the conduit (5) through the fixing mechanism, and finally install the guide pipe (12) to make the air bag (9) communicate with the conduit (5); S6, detect the air tightness of the air bag (9) by injecting gas into the air inlet valve (7), and store it in the warehouse after passing the test.

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