CN220540293U - Sealing structure of intermediate and diffusion plate of turbocharger - Google Patents

Abstract

The utility model discloses a sealing structure of a turbocharger intermediate and a diffuser plate, which belongs to the technical field of sealing structures and comprises the following components: the middle body, one side tip fixed cover that the middle body is close to the compressor is equipped with expands the clamp plate, the middle body is close to the fixed a plurality of connecting block that is provided with in tip side that expands the clamp plate, the through-hole that link up has been seted up at the connecting block middle part, the one end tip that expands the clamp plate was kept away from to the connecting block is located through-hole oral area external fixation and is provided with the anticreep arch, the position department that corresponds with the connecting block on the clamp plate that expands slides is provided with the connection bolt pole. Therefore, the disassembly and assembly operations of the diffuser plate can be realized conveniently and efficiently, the connection between the intermediate body and the diffuser plate can be prevented from loosening due to frequent vibration in the working environment of the diffuser, in addition, the sealing groove between the contact joint of the intermediate body and the diffuser plate, the anti-seepage rubber cushion and the sealing ring can be combined to work so as to greatly improve the connection tightness, and the engine oil is prevented from seeping out through the connection joint of the intermediate body and the diffuser plate.

Description

Sealing structure of intermediate and diffusion plate of turbocharger

Technical Field

The utility model relates to a sealing structure, in particular to a sealing structure of a turbocharger intermediate body and a diffuser plate, and belongs to the technical field of sealing structures.

Background

The turbocharger for the vehicle consists of a centrifugal compressor, a radial turbine and an intermediate. The supercharger shaft is supported in the intermediate body by two floating bearings, and the intermediate body is internally provided with an oil passage for lubricating and cooling the bearings, a sealing device for preventing engine oil from leaking into the compressor or turbine, and the like. And the pressure expansion plate is arranged between the air compressor and the intermediate, and the firmness and tightness of the connection between the pressure expansion plate and the intermediate directly influence the quality of the turbocharger.

In the prior art, the connection mode between the intermediate body and the diffusion plate is simpler, namely the diffusion plate is buckled at the end part of the intermediate body to form airtight connection, but the operation of the diffusion plate is more complicated when the diffusion plate is disassembled by the connection mode, meanwhile, the connection between the intermediate body and the diffusion plate is loose possibly due to shaking in the working environment of shaking for a long time, in addition, the defect of effective oil leakage prevention measures is overcome between the intermediate body and the diffusion plate, engine oil can leak out through the connecting joints of the intermediate body and the diffusion plate in the long-term use process, and poor results are caused, so that the sealing structure of the intermediate body and the diffusion plate of the turbocharger is proposed aiming at the problems.

Disclosure of Invention

The utility model aims to solve the technical problems of providing a sealing structure for a turbocharger intermediate and a diffuser plate, which can realize convenient and efficient disassembly and installation operation of the diffuser plate, can prevent the connection between the intermediate and the diffuser plate from loosening due to frequent vibration in the working environment of the turbocharger, and can greatly improve the tightness of connection by combining a sealing groove between contact joints of the intermediate and the diffuser plate, an impermeable rubber cushion and a sealing ring to prevent engine oil from seeping out through the connection joints of the intermediate and the diffuser plate, thereby solving the technical problems that the diffuser plate is inconvenient to assemble and disassemble, the connection is easy to loosen and the connection joint between the intermediate and the diffuser plate is easy to leak engine oil in the prior art.

In order to solve the problems, the following technical scheme is provided:

the turbocharger intermediate and diffuser plate sealing structure comprises an intermediate, wherein a diffuser plate is arranged on a side end fixing cover of the intermediate, which is close to a compressor, a plurality of connecting blocks are fixedly arranged on the side surface of the end, which is close to the diffuser plate, of the intermediate, through holes are formed in the middle of the connecting blocks, anti-falling protrusions are fixedly arranged on the outer parts of the end parts, which are far away from the diffuser plate, of the connecting blocks, connecting bolt rods are slidably arranged at positions, corresponding to the connecting blocks, of the diffuser plate, clamping protrusions are fixedly arranged on the side surfaces of the end parts of the tail ends of the connecting bolt rods, connecting grooves are formed in the outer side surfaces of end caps of the head ends of the connecting bolt rods, inner grooves are formed in positions, corresponding to the installation positions of the connecting bolt rods, of the outer side surfaces of the diffuser plate, fastening springs are fixedly arranged in the inner grooves, the connection bolt rod and the connection block are combined to work, so that the diffuser plate can be conveniently and efficiently installed and disassembled, the principle is that the rod section with the clamping protrusion of the connection bolt rod passes through the through hole and then is twisted to rotate, the clamping protrusion slides along the anti-falling protrusion, meanwhile, the height of the cross section of the anti-falling protrusion is gradually increased, the fastening spring is gradually compressed, when the clamping protrusion moves to the tail end of the anti-falling protrusion, the support of the anti-falling protrusion is lost, at the moment, the clamping protrusion retracts and is clamped on the end part of the connection block under the counter force action of the fastening spring, meanwhile, the clamping protrusion is tightly attached to the anti-falling protrusion due to the torsion action of the fastening spring, when the connection bolt rod needs to be disassembled, the connection bolt rod can be separated from the connection block by pushing the connection bolt rod forwards and then reversely rotating, and meanwhile, the connection mode can consume vibration energy through the spring, and connection looseness caused by frequent vibration is prevented;

the sealing groove is fixedly arranged on the end face, close to the pressure expansion plate, of the intermediate body, the anti-seepage rubber mat is fixedly attached to the bottom of the sealing groove, the connecting convex ring is fixedly arranged on the end face, close to the intermediate body, of the pressure expansion plate, the annular groove is formed in the connecting convex ring, the sealing ring is slidably arranged in the annular groove, a plurality of sealing springs are fixedly connected between the sealing ring and the bottom of the annular groove, the sealing groove is connected with the sealing convex ring in a tight thread joint manner to play a primary anti-seepage role, the tight connection between the connecting convex ring and the anti-seepage rubber mat can further improve the anti-seepage performance of the joint, and meanwhile the sealing ring can be tightly connected with the anti-seepage rubber mat under the extrusion action of the sealing springs to play a further strengthening role in the anti-seepage performance of the joint.

Further, the cross section shape of through-hole is unanimous with the cross section shape of the protruding one section of joint that has of connecting bolt pole, and this kind of structural style can make the connecting bolt pole can pass through smoothly after aiming at the through-hole, and its tip fixed connection's joint protruding orientation changes after the connecting bolt pole rotates, and the connecting bolt pole can't be rethread through-hole and take out, plays fixed connection's effect.

Further, the cross-sectional dimension of through-hole is slightly greater than the cross-sectional dimension of the section that the connecting bolt pole has the joint protruding, and through-hole inner wall is smooth not protruding simultaneously, and this kind of structural style can guarantee that the connecting bolt pole can not appear obvious rocking because the cross-sectional dimension difference is too big when passing through the through-hole smoothly.

Furthermore, the anti-falling protrusion is of a semi-annular structure with gradually increased section height, and meanwhile, the outer surface of the anti-falling protrusion is smooth and flat, and the formed material is made of a wear-resistant metal material.

Further, the rigidity of the fastening spring is higher, the length of the fastening spring is slightly larger than the groove depth of the inner groove, meanwhile, one end of the fastening spring is fixedly connected with the bottom of the inner groove, the other end of the fastening spring is fixedly connected with the end cap at the head end of the connecting bolt rod, after the connecting bolt rod is clamped, the fastening spring is in a pressed state and generates large extrusion force to ensure the connection firmness between the intermediate body and the diffusion plate, and meanwhile, the fastening spring is fixed at two ends of the fastening spring and can provide torque to prevent the connecting bolt rod from automatically rotating.

Furthermore, the anti-seepage rubber pad is of an annular structure made of high-temperature resistant materials with certain elasticity, the outer surface of the anti-seepage rubber pad is smooth and flat, and the sealing performance of the connecting part can be improved through micro deformation of the anti-seepage rubber pad.

Further, the annular groove opening is provided with a convex ring structure capable of preventing the sealing ring from falling off, and the convex ring structure can effectively prevent the sealing ring from falling off from the annular groove under the thrust action of the sealing spring so as to influence normal use.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the connection bolt rod and the connection block are combined to work, so that the diffuser plate can be conveniently and efficiently assembled and disassembled, the principle is that after the connection bolt rod is clamped, the fastening spring is in a pressed state and generates larger extrusion force to ensure the firmness of connection between the intermediate body and the diffuser plate, and simultaneously, the two ends of the fastening spring are fixed and can also provide torque to prevent the connection bolt rod from automatically rotating;

2. according to the utility model, the primary anti-seepage function can be achieved through the tight thread joint connection of the sealing groove and the connecting convex ring, the anti-seepage performance of the connecting part can be further improved through the tight connection between the connecting convex ring and the anti-seepage rubber mat, and meanwhile, the sealing ring can be tightly connected with the anti-seepage rubber mat under the extrusion action of the sealing spring, so that the anti-seepage performance of the connecting part is further strengthened;

specific embodiments of the utility model are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the utility model may be employed. It should be understood that the embodiments of the utility model are not limited in scope thereby. The embodiments of the utility model include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic illustration of a preferred embodiment of a turbocharger intermediate and diffuser plate seal in accordance with the present utility model;

FIG. 2 is a schematic illustration of an intermediate end connection of a preferred embodiment of a turbocharger intermediate and diffuser plate seal according to the present utility model;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a schematic illustration of a connection between a turbocharger intermediate and a diffuser plate seal according to a preferred embodiment of the present utility model;

FIG. 5 is a schematic view of a diffuser plate end connection of a preferred embodiment of a turbocharger intermediate and diffuser plate seal according to the present utility model;

fig. 6 is an enlarged view at B in fig. 5.

In the figure: 1. an intermediate; 2. a pressure expansion plate; 3. a connecting block; 4. a through hole; 5. an anti-falling protrusion; 6. a connecting bolt; 7. the clamping bulge; 8. a connecting groove; 9. an inner groove; 10. a fastening spring; 11. sealing grooves; 12. an impermeable rubber mat; 13. connecting convex rings; 14. a ring groove; 15. a seal ring; 16. and a seal spring.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1, the sealing structure of the intermediate body and the diffusion plate of the turbocharger provided in this embodiment includes an intermediate body 1, and a diffusion plate 2 is disposed on an end fixing cover of the intermediate body 1, which is close to a compressor, and the structure is two adjacent main bodies that need to be connected in a sealing manner.

As shown in fig. 2, 4 and 6, in the sealing structure of the turbocharger intermediate body and the diffuser plate provided in this embodiment, a plurality of connecting blocks 3 are fixedly arranged on the side surface of the end portion of the intermediate body 1, which is close to the diffuser plate 2, through holes 4 are formed in the middle of the connecting blocks 3, anti-falling protrusions 5 are fixedly arranged outside the opening portions of the through holes 4 at the end portions of one ends of the connecting blocks 3, which are far away from the diffuser plate 2, the anti-falling protrusions 5 are semi-annular structures with gradually increased section heights, the outer surfaces of the anti-falling protrusions 5 are smooth and flat and are made of wear-resistant metal materials, the structural form can prevent the connecting bolt 6 from automatically rotating to separate from the through holes 4 due to vibration, connecting bolt 6 is slidably arranged at the position, corresponding to the connecting blocks 3, on the side surface of the end portion of the end of the connecting bolt 6 is fixedly provided with clamping protrusions 7, the section shape of the through holes 4 is consistent with the section of the connecting bolt 6, which is provided with the clamping protrusions 7, the structure can lead the connecting bolt rod 6 to pass smoothly after aligning the through hole 4, and when the connecting bolt rod 6 rotates, the direction of the clamping protrusion 7 fixedly connected with the end part of the connecting bolt rod is changed, the connecting bolt rod 6 can not be pulled out through the through hole 4 any more, the effect of fixed connection is achieved, meanwhile, the section size of the through hole 4 is slightly larger than the section size of a section of the connecting bolt rod 6 with the clamping protrusion 7, meanwhile, the inner wall of the through hole 4 is smooth and no protrusion, the structure can ensure that the connecting bolt rod 6 can smoothly pass through the through hole 4 without obvious shaking caused by overlarge difference of the section sizes, the outer side face of the end cap at the head end part of the connecting bolt rod 6 is provided with a connecting groove 8, the outer side face of the pressure expanding plate 2 is provided with an inner groove 9 at the position corresponding to the installation position of the connecting bolt rod 6, the inner groove 9 is fixedly provided with a fastening spring 10, the rigidity of the fastening spring 10 is higher and the length is slightly greater than the groove depth of the inner groove 9, meanwhile, one end of the fastening spring is fixedly connected with the groove bottom of the inner groove 9, the other end of the fastening spring is fixedly connected with the end cap of the head end of the connecting bolt rod 6, after the fastening of the connecting bolt rod 6 is completed, the fastening spring 10 is in a pressed state and generates larger extrusion force to ensure the firmness of connection between the intermediate body 1 and the diffusion plate 2, simultaneously, the fastening spring 10 can also provide torque to prevent the connecting bolt rod 6 from automatically rotating due to the fact that the fastening spring 10 is fixed at two ends, the convenient and efficient installation and disassembly work of the diffusion plate 2 can be realized through the combined work of the connecting bolt rod 6 and the connecting block 3, the fastening bolt rod 6 is screwed to rotate after the rod section with the clamping protrusion 7 passes through the through hole 4, the clamping protrusion 7 slides along the anti-falling protrusion 5, meanwhile, the fastening spring 10 can be gradually compressed due to the gradual increase of the section height of the anti-falling protrusion 5, the fastening spring 10 can lose the support of the anti-falling protrusion 5 when the clamping protrusion 7 moves to the tail end of the anti-falling protrusion 5, the fastening spring 10 can retract and clamp the clamping protrusion 7 and clamp the end portion 3 can retract under the action of the fastening spring 10, the effect, the vibration force can be prevented from being frequently consumed by the vibration of the connecting bolt rod and the connecting bolt 6 due to the fact that the vibration is frequently connected with the anti-falling protrusion 6.

As shown in fig. 3, fig. 5 and fig. 6, in the sealing structure of the turbocharger intermediate body and the diffuser plate provided in this embodiment, the end surface of the intermediate body 1, which is close to the diffuser plate 2, is fixedly provided with the sealing groove 11, the bottom of the sealing groove 11 is fixedly attached with the anti-seepage rubber pad 12, the anti-seepage rubber pad 12 is an annular structure made of a high-temperature-resistant material with certain elasticity, and the outer surface of the sealing groove is smooth and flat, the sealing structure can improve the tightness of a joint through self micro-deformation, the end surface of the diffuser plate 2, which is close to the intermediate body 1, is fixedly provided with the connecting convex ring 13, the connecting convex ring 13 is provided with the annular groove 14, the sealing ring 15 is slidably arranged in the annular groove 14, the opening of the annular groove 14 is provided with the convex ring structure capable of preventing the sealing ring 15 from falling out from the annular groove 14 under the thrust action of the sealing spring 16, which affects normal use, the sealing ring 15 and the annular groove 14 are fixedly connected with a plurality of sealing springs 16, the sealing groove 11 is connected with the bottom of the annular groove 13 in a sealing joint in a sealing manner, the tight connection between the connecting convex ring 13 and the anti-seepage rubber pad 12 can further improve the anti-seepage performance of the joint, and the anti-seepage performance of the sealing spring can further enhance the tight connection performance of the sealing joint between the sealing ring 16 under the sealing spring 16.

The application principle and the application flow of the utility model are as follows: the connecting convex ring 13 on the pressure expansion plate 2 is aligned with the sealing groove 11 at the end part of the intermediate body 1 to enable the connecting convex ring 13 and the connecting convex ring to be in tight thread butt joint, the rod section of the connecting bolt rod 6 with the clamping convex ring 7 passes through the through hole 4 and then is screwed to rotate, the clamping convex ring 7 slides along the anti-falling convex ring 5, meanwhile, the fastening spring 10 is gradually compressed due to the gradual increase of the section height of the anti-falling convex ring 5, when the clamping convex ring 7 moves to the tail end of the anti-falling convex ring 5, the clamping convex ring 7 retracts and is clamped on the end part of the connecting block 3 under the counter force action of the fastening spring 10, meanwhile, the clamping convex ring 7 is tightly attached to the anti-falling convex ring 5 due to the torsion action of the fastening spring 10, when the connecting bolt rod 6 is required to be disassembled, the connecting bolt rod 6 can be separated from the connecting block 3 by pushing the connecting bolt rod in the reverse direction, and the pressure expansion plate 2 can be disassembled conveniently and efficiently and simultaneously; the tight connection between the connecting convex ring 13 and the impermeable rubber pad 12 can further improve the impermeable performance of the joint, and meanwhile, the sealing ring 15 can be tightly connected with the impermeable rubber pad 12 under the extrusion action of the sealing spring 16, so that the impermeable performance of the joint is further strengthened.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to specific circumstances.

While the utility model has been described in connection with specific embodiments, it will be apparent to those skilled in the art that the description is intended to be illustrative and not limiting in scope. Various modifications and alterations of this utility model will occur to those skilled in the art in light of the spirit and principles of this utility model, and such modifications and alterations are also within the scope of this utility model.

Claims (7)

1. The utility model provides a turbo charger midbody and diffusion plate seal structure, its characterized in that, including midbody (1), one side tip fixed cover that midbody (1) is close to the compressor is equipped with expansion plate (2), the tip lateral surface that midbody (1) is close to expansion plate (2) is fixed to be provided with a plurality of connecting block (3), through-hole (4) have been seted up at the middle part of connecting block (3), the one end tip that expansion plate (2) was kept away from to connecting block (3) is located the external fixation of through-hole (4) oral area and is provided with anticreep arch (5), the position department that corresponds with connecting block (3) on diffusion plate (2) slides and is provided with connecting bolt (6), connecting bolt (6) terminal tip lateral surface fixed connection arch (7), connecting groove (8) have been seted up to the end cap lateral surface of connecting bolt (6) head end tip, inner groove (9) have been seted up in the position that diffusion plate (2) lateral surface and connecting bolt (6) installation department correspond, fastening spring (10) are fixed to be installed in inner groove (9).

The sealing device is characterized in that a sealing groove (11) is fixedly formed in the end face, close to the pressure expansion plate (2), of the intermediate body (1), an anti-seepage rubber pad (12) is fixedly attached to the bottom of the sealing groove (11), a connecting convex ring (13) is fixedly arranged on the end face, close to the intermediate body (1), of the pressure expansion plate (2), an annular groove (14) is formed in the connecting convex ring (13), a sealing ring (15) is slidably arranged in the annular groove (14), and a plurality of sealing springs (16) are fixedly connected between the sealing ring (15) and the bottom of the annular groove (14).

2. The turbocharger intermediate and diffuser plate sealing structure according to claim 1, wherein the cross-sectional shape of the through hole (4) is identical to the cross-sectional shape of a section of the connecting bolt (6) having the snap-fit protrusion (7).

3. The sealing structure of the turbocharger intermediate body and the diffuser plate according to claim 2, wherein the cross-sectional dimension of the through hole (4) is slightly larger than the cross-sectional dimension of a section of the connecting bolt (6) with the clamping protrusion (7), and the inner wall of the through hole (4) is smooth and has no protrusion.

4. The sealing structure of the turbocharger intermediate and the diffuser plate according to claim 1, wherein the anti-drop protrusion (5) is a semi-annular structure with gradually increased section height, and the outer surface of the anti-drop protrusion (5) is smooth and flat, and the structural material is a wear-resistant metal material.

5. The sealing structure of the turbocharger intermediate body and the diffuser plate according to claim 1, wherein the fastening spring (10) has higher rigidity and a length slightly larger than the groove depth of the inner groove (9), and one end of the fastening spring is fixedly connected with the groove bottom of the inner groove (9), and the other end of the fastening spring is fixedly connected with the end cap at the head end of the connecting bolt (6).

6. The sealing structure of the turbocharger intermediate and the diffuser plate according to claim 1, wherein the anti-seepage rubber pad (12) is an annular structure made of high-temperature resistant material with certain elasticity, and the outer surface of the anti-seepage rubber pad is smooth and flat.

7. The turbocharger intermediate and diffuser plate sealing structure according to claim 1, wherein the ring groove (14) is provided at the mouth with a convex ring structure capable of preventing the seal ring (15) from coming off.