Diesel engine exhaust valve pressure maintaining transportation device

Abstract

The utility model discloses a diesel engine exhaust valve pressure maintaining and transporting device, and relates to the technical field of diesel engines, in particular to a diesel engine exhaust valve pressure maintaining and transporting device which comprises a tool body and an exhaust valve, an opening is designed in the top of the tool body, the bottom of the exhaust valve can pass through the opening, and stud connecting holes are formed in the two sides of the exhaust valve. Shaft shoulders on the two sides of the exhaust valve are located on the top of the tool body, the lower portion of the exhaust valve is suspended, screw connecting holes are formed in the two sides of an opening in the top of the tool body and correspond to the two sides of the exhaust valve, and a long screw is jointly connected into the screw connecting holes and the stud connecting holes in a penetrating mode. According to the pressure-maintaining transportation device for the exhaust valves of the diesel engines, the exhaust valves are fixedly arranged on the tool body, the tool body is hoisted and transferred, and then the multiple exhaust valves can be subjected to pressure-maintaining transportation, so that the pressure-maintaining experiment efficiency of the exhaust valves is improved, single hoisting back and forth is avoided, and working hours are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engines, in particular to a pressure-maintaining and transporting device for an exhaust valve of a diesel engine. Background Art

[0002] Each cylinder of the S60ME-C10.5 diesel engine is equipped with an exhaust valve. The exhaust valve is installed in the center hole of the cylinder head. The valve housing is fastened to the seat surface of the cylinder head by four studs and nuts to form an airtight seal. The nuts are fastened with hydraulic tools. The air cylinder is installed on the upper part of the exhaust valve housing, and two seals are installed on the lower part of the air cylinder body. There is a sealing air supply from the air cylinder around the exhaust valve stem at the bottom of the air cylinder. The sealing air is introduced into the lower part of the sealing ring through the sealing air control unit and a throttle tube. The sealing air prevents the gas and particles from rising to prevent the valve stem working surface from being worn and contaminated. The pneumatic system of the valve drive mechanism. Therefore, there are strict requirements for the sealing of the exhaust valve air cylinder. After the exhaust valve is assembled, the exhaust valve needs to be subjected to a pressure holding test: inject air into the air cylinder, the valve stem rises quickly, and the pressure is maintained for 15 minutes. If the valve stem does not fall, it can be proved that the exhaust valve has good air tightness. However, currently, only a single exhaust valve can be lifted and then transported to a designated location for testing. After the pressure maintenance is completed, it needs to be lifted back to the placement area to wait for shipment. When shipped, it needs to be re-lifted to the transport vehicle. The exhaust valve is placed flat during shipment, and the sealing ring is squeezed and deformed under the weight of the valve stem, which can easily cause oil leakage. Therefore, there has always been a problem in production that the single lifting requires a long working time and is inefficient, and there is a problem that the overall structure of the exhaust valve may be damaged during transportation, affecting the overall assembly of the main engine. With the increase in the diesel engine market, the current lifting method is inefficient and cannot meet production requirements. In summary, the current diesel engine exhaust valve production process problems in the diesel engine workshop are as follows:

[0003] ①The pressure holding test requires the exhaust valve to be hoisted back and forth individually for testing, which is inefficient.

[0004] ② The exhaust valve is placed flat during shipment, and the deadweight of the valve stem presses on the sealing ring, which may cause it to deform, resulting in oil leakage and affecting its performance.

[0005] For this purpose, we propose a pressure-maintaining and transporting device for exhaust valves of diesel engines. Utility Model Content

[0006] The utility model provides a pressure-maintaining and transporting device for an exhaust valve of a diesel engine, which solves the problems raised by the above-mentioned background technology.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a diesel engine exhaust valve pressure maintaining and transporting device, including a tooling body and an exhaust valve, the top of the tooling body is designed with an opening, allowing the bottom of the exhaust valve to pass through, stud connecting holes are opened on both sides of the exhaust valve, the shoulders on both sides of the exhaust valve are located on the top of the tooling body, and the lower part of the exhaust valve is suspended, screw connecting holes are designed on both sides of the top opening of the tooling body and correspond to the two sides of the exhaust valve, and a long screw is connected through the screw connecting hole and the stud connecting hole, and the top end of the long screw passes through the screw connecting hole and the stud connecting hole and is threaded with a nut.

[0008] Optionally, a lifting hole is provided on the outer side of the tool body, and a margin is left between the bottom of the exhaust valve and the ground, so that the valve stem does not contact the ground.

[0009] Optionally, a locking seat is fixed on the top of the tool body, and a locking buckle is clamped on the outer side of the locking seat, and the locking buckle is connected to a gravity pressing block through an axle pin.

[0010] Optionally, the bottom of the gravity pressing block contacts the top of the locking seat, and a transverse slot is provided on the top of the gravity pressing block, in which a limiting column is movably connected.

[0011] Optionally, the limiting column is fixed to the exhaust valve, the gravity pressing block is movably connected to the exhaust valve, a first spring is fixed to the top of the gravity pressing block, and the top of the first spring abuts against the exhaust valve.

[0012] Optionally, a guide block is fixed to the bottom of the exhaust valve, and the guide block has an inclined surface, and the inclined surface is in contact with the locking buckle.

[0013] Optionally, a second spring is fixed to the inner side of the locking buckle, and one end of the second spring is fixed to the gravity pressing block.

[0014] The utility model has the following beneficial effects:

[0015] 1. The diesel engine exhaust valve pressure-maintaining transportation device fixes the exhaust valve on the tooling body, and then transports the tooling body by hoisting, so that multiple exhaust valves can be transported under pressure, thereby improving the exhaust valve pressure-maintaining test efficiency, avoiding single hoisting back and forth, saving work time, and avoiding the problem that the exhaust valve may be damaged during transportation, thereby making its transportation more efficient and safe.

[0016] 2. The diesel engine exhaust valve pressure-maintaining and transporting device is designed with an opening on the top of the tooling body, through which the bottom of the exhaust valve housing can pass. The shaft shoulders on both sides of the exhaust valve are located on the tooling body, so that the lower part of the exhaust valve is suspended in the air, ensuring that there is a margin between the bottom of the exhaust valve and the ground. After the valve pressure maintenance is completed, the valve stem falls naturally and is still at a certain distance from the ground to avoid direct contact with the ground, thereby better protecting the exhaust valve.

[0017] 3. The diesel engine exhaust valve pressure-maintaining and transporting device is fixed by locking the long screw and the nut through the screw connecting hole and the stud connecting hole, so that the exhaust valve can be fixed on the tooling without shaking and deviation, and under the downward pressure of the exhaust valve gravity, the locking buckle can lock the locking seat, so that the fixation between the exhaust valve and the tooling body is tightened. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the utility model in a front view;

[0020] Figure 3 It is a schematic diagram of the structure of the utility model from a top view;

[0021] Figure 4 This is a schematic diagram of the structure of the exhaust valve of the utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the exhaust valve connection of the utility model;

[0023] Figure 6 This is a structural schematic diagram of the connection of the gravity-pressed block of the utility model;

[0024] Figure 7 It is a schematic diagram of the structure of the utility model at A;

[0025] In the figure: 1. tooling body; 2. lifting hole; 3. screw connection hole; 4. stud connection hole; 5. exhaust valve; 6. long screw; 7. nut; 8. locking seat; 9. locking buckle; 10. gravity pressure block; 11. first spring; 12. limit column; 13. derivation block; 14. second spring. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figures 1 to 4 A diesel engine exhaust valve pressure-maintaining and transporting device comprises a tooling body 1 and an exhaust valve 5. An opening is designed on the top of the tooling body 1, through which the bottom of the exhaust valve 5 can pass. The exhaust valve 5 is vertically mounted on the tooling body 1. After the valve pressure maintenance is completed, the valve stem naturally falls, and the valve stem is inside the tooling body 1, so that the tooling body 1 can protect the valve stem. Stud connection holes 4 are provided on both sides of the exhaust valve 5. The shaft shoulders on both sides of the exhaust valve 5 are located on the top of the tooling body 1. The lower part of the exhaust valve 5 is suspended to ensure that the bottom of the exhaust valve 5 has a margin from the ground. After the valve pressure maintenance is completed, the valve stem naturally falls, and there is still a certain distance from the ground to avoid direct contact with the exhaust valve 5. The exhaust valve 5 is in contact with the ground, so as to better protect the exhaust valve 5. Screw connecting holes 3 are designed on both sides of the top opening of the tooling body 1 and correspond to the exhaust valves 5 on both sides of the exhaust valve 5. The screw connecting hole 3 and the stud connecting hole 4 are connected with a long screw 6, so that the long screw 6 can smoothly pass through the screw connecting hole 3 and the stud connecting hole 4 to fix the exhaust valve 5. The top end of the long screw 6 passes through the screw connecting hole 3 and the stud connecting hole 4 and is threadedly fitted with a nut 7. The nut 7 is screwed and locked, so that the exhaust valve 5 can be fixedly installed on the tooling body 1, ensuring that the exhaust valve 5 is vertically fixed on the tooling body 1 without shaking or deviation.

[0028] See also Figures 1 to 4 A lifting hole 2 is provided on the outside of the tool body 1, and a margin is left between the bottom of the exhaust valve 5 and the ground, so that the valve stem does not contact the ground. The tool body 1 is lifted and transported through the lifting hole 2, thereby making the transportation of the tool body 1 more convenient.

[0029] See also Figure 1 Figures 5 to 7 A locking seat 8 is fixed on the top of the tooling body 1, and a locking buckle 9 is clamped on the outer side of the locking seat 8. Through the clamping of the locking buckle 9, it can be locked with the tooling body 1. The locking buckle 9 is connected to the gravity pressing block 10 through an axle pin to form a hinge structure with the axle pin as the rotating axis, so that the locking buckle 9 can be rotated in a fixed position on the gravity pressing block 10.

[0030] See also Figure 1 Figures 5 to 7 The bottom of the gravity pressing block 10 contacts the top of the locking seat 8, and a transverse slot is provided at the top of the gravity pressing block 10, in which a limiting column 12 is movably connected. Through the limiting column 12, the relative movement trajectory between the gravity pressing block 10 and the exhaust valve 5 can be locked.

[0031] Please refer to the figure Figure 1 Figures 5 to 7The limiting column 12 is fixed to the exhaust valve 5, and the gravity pressing block 10 is movably connected to the exhaust valve 5, so that the exhaust valve 5 and the gravity pressing block 10 can move relative to each other along a fixed trajectory. A first spring 11 is fixed to the top of the gravity pressing block 10, and the top of the first spring 11 abuts against the exhaust valve 5. Under the action of the elastic force of the first spring 11, the exhaust valve 5 and the gravity pressing block 10 can move relative to each other smoothly, so that the gravity pressing block 10 can drive the locking buckle 9 to open and cancel the clamping relationship with the locking seat 8.

[0032] Please refer to the figure Figure 1 Figures 5 to 7 A guide block 13 is fixed to the bottom of the exhaust valve 5, and an inclined surface is provided on the guide block 13, and the inclined surface is in contact with the locking buckle 9. Under the contact between the guide block 13 and the locking buckle 9, and when the exhaust valve 5 is relatively close to the gravity pressing block 10, the guide block 13 can push the locking buckle 9 to rotate, thereby enabling the locking buckle 9 to be engaged with the locking seat 8.

[0033] Please refer to the figure Figure 1 Figures 5 to 7 A second spring 14 is fixed to the inner side of the locking buckle 9, and one end of the second spring 14 is fixed to the gravity pressing block 10. Under the action of the elastic force of the second spring 14, the locking buckle 9 can be opened smoothly.

[0034] In summary, when the diesel engine exhaust valve pressure-maintaining and transporting device is used, the exhaust valve 5 is placed on the tooling body 1, the bottom end of the exhaust valve 5 extends into the interior of the tooling body 1 through the leaning opening, and the gravity pressing block 10 is aligned with the locking seat 8, and then under the action of the gravity of the exhaust valve 5, the gravity pressing block 10 and the exhaust valve 5 move relative to each other, and then the deduction block 13 on the gravity pressing block 10 contacts the locking buckle 9, and the deduction block 13 pushes the locking buckle 9 outward, so that the locking buckle 9 can be rotated with the axle pin as the rotating axis, so that the locking buckle 9 can be plugged into the locking seat 8, and then the long screw 6 is sequentially extended through the screw connecting hole 3 and the stud connecting hole 4, and finally the nut 7 is screwed, so that the exhaust valve 5 is fixedly installed on the tooling body 1. After the exhaust valve 5 is fixed, it can be hoisted as a whole by the hoisting hole 2 on the tooling body 1 and transported to the experimental position for pressure-maintaining experiment. After the pressure-maintaining is completed, it does not need to be disassembled and can be hoisted and shipped as a whole.

[0035] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model 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 operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[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 diesel engine exhaust valve pressure-maintaining and transporting device, comprising a tooling body (1) and an exhaust valve (5), characterized in that: The top of the tool body (1) is designed with an opening to allow the bottom of the exhaust valve (5) to pass through. The exhaust valve (5) is provided with stud connection holes (4) on both sides. The shaft shoulders on both sides of the exhaust valve (5) are located on the top of the tool body (1). The lower part of the exhaust valve (5) is suspended in the air. Screw connection holes (3) are designed on both sides of the top opening of the tool body (1) and correspond to the two sides of the exhaust valve (5). A long screw (6) is connected through the screw connection hole (3) and the stud connection hole (4). The top end of the long screw (6) passes through the screw connection hole (3) and the stud connection hole (4) and is threadedly sleeved with a nut (7).

2. A diesel engine exhaust valve pressure-maintaining and transporting device according to claim 1, characterized in that: A lifting hole (2) is provided on the outer side of the tool body (1), and a margin is left between the bottom of the exhaust valve (5) and the ground, so that the valve stem does not contact the ground.

3. A diesel engine exhaust valve pressure-maintaining and transporting device according to claim 1, characterized in that: A locking seat (8) is fixed on the top of the tool body (1), and a locking buckle (9) is clamped on the outer side of the locking seat (8), and the locking buckle (9) is connected to a gravity pressing block (10) via an axle pin.

4. A diesel engine exhaust valve pressure-maintaining and transporting device according to claim 3, characterized in that: The bottom of the gravity pressing block (10) contacts the top of the locking seat (8), and a transverse slot is provided on the top of the gravity pressing block (10), in which a limiting column (12) is movably connected.

5. A diesel engine exhaust valve pressure-maintaining and transporting device according to claim 4, characterized in that: The limit column (12) is fixed to the exhaust valve (5), the gravity pressing block (10) is movably connected to the exhaust valve (5), a first spring (11) is fixed to the top of the gravity pressing block (10), and the top of the first spring (11) is in contact with the exhaust valve (5).

6. A diesel engine exhaust valve pressure-maintaining and transporting device according to claim 5, characterized in that: A guide block (13) is fixed at the bottom of the exhaust valve (5), and an inclined surface is provided on the guide block (13), and the inclined surface is in contact with the locking buckle (9).

7. A diesel engine exhaust valve pressure-maintaining and transporting device according to claim 6, characterized in that: A second spring (14) is fixed on the inner side of the locking buckle (9), and one end of the second spring (14) is fixed to the gravity pressing block (10).

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