Protection device for sealing ring assembly

Abstract

The utility model discloses a protection device for sealing ring assembly, which relates to the field of installation protection devices and comprises at least one first plugging device, each first plugging device comprises a support ring and at least one first plugging body, and each support ring can be connected with the at least one first plugging body; each supporting ring can be arranged outside a first to-be-sealed part provided with a mounting cavity in a sleeving manner, at least one through hole communicated with the mounting cavity is formed in the side wall of the first to-be-sealed part, and an opening, close to the inner wall of the first to-be-sealed part, of each through hole is an inner opening; each first plugging body can extend into one through hole; and each first plugging body can plug the inner opening of the corresponding through hole, and can allow a second to-be-sealed piece which enters the mounting cavity and is sleeved with a sealing ring on the outer side wall to pass through. The sealing ring can be prevented from being damaged during installation, the production efficiency can be improved, and manpower and material resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of installation protection devices, in particular to a protection device for assembling a sealing ring. Background Art

[0002] A sealing ring can be arranged between the outer side wall of one component and the inner side wall of another component to achieve the sealing of the two components. For example, it can be applied between the outer side wall of the oil pipe core sub-assembly of the oil pipe assembly and the inner side wall of the oil pipe. Among them, the oil pipe assembly is used to provide multiple oil circuits for the propeller, and the sealing rings are used to isolate the oil circuits from each other. The oil pipe of the oil pipe assembly is a thin-walled part, and a plurality of oil holes are machined on the side wall of the oil pipe. For example, 4 Φ8mm through holes, 1 Φ3 +0.05 mm through hole and an elliptical through hole with a major axis dimension of 10mm are machined as oil holes. When assembling the oil pipe assembly, the sealing ring needs to be assembled onto the outer side wall of the oil pipe core sub-assembly first, and then the oil pipe core sub-assembly with the sealing ring is assembled into the oil pipe. During the assembly, two sealing rings will respectively pass through a plurality of through holes on the side wall of the oil pipe. The interference fit between the sealing ring and the inner wall of the oil pipe is 0.859mm - 1.069mm, and the unilateral interference fit is about 0.43mm - 0.53mm. Since the sealing ring is elastic, when the sealing ring passes through various through holes during the assembly process, the unilateral interference fit will enter the corresponding through holes. When there are sharp edges and burrs in the through holes, the phenomenon of sealing ring shearing often occurs after the assembly is completed. If the sealing ring is not found and replaced in time, during the airtightness inspection by hydraulic test, the abnormal phenomenon of oil leakage will occur, and the oil pipe assembly needs to be disassembled to eliminate the problem, which not only delays the assembly cycle but also causes waste of manpower and material resources. Currently, there is no protection device for assembling a sealing ring that can prevent the sealing ring from being damaged by the through holes on the oil pipe during the assembly process. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a protection device for assembling a sealing ring to solve the problems existing in the above-mentioned prior art, prevent the sealing ring from being damaged during installation, and is beneficial to improving production efficiency and saving manpower and material resources.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The present utility model provides a protection device for seal ring assembly, including at least one first plugging device. Each of the first plugging devices includes a support ring and at least one first plugging body. Each of the support rings can be connected to at least one of the first plugging bodies; each of the support rings can be sleeved outside a first component to be sealed. The first component to be sealed is provided with an installation cavity, and at least one through hole communicating with the installation cavity is provided on the side wall of the first component to be sealed. An inner opening of each through hole close to the inner wall of the first component to be sealed; each of the first plugging bodies can extend into one of the through holes; each of the first plugging bodies can plug the inner opening of the corresponding through hole and can allow a second component to be sealed with a seal ring sleeved on its outer side wall to pass through into the installation cavity.

[0006] Preferably, at least one threaded hole is provided on each of the support rings. Each of the first plugging bodies includes a connecting component and a first plugging head that are fixedly connected to each other. The first plugging head is cylindrical. Each of the connecting components can be threadedly connected to one of the threaded holes; each of the first plugging heads can extend into one of the through holes; each of the first plugging heads can plug the inner opening of the corresponding through hole and can allow the second component to be sealed with a seal ring sleeved on its outer side wall to pass through into the installation cavity.

[0007] Preferably, one end of each of the connecting components of each of the first plugging bodies close to the corresponding first plugging head is a limiting section. The diameter of the limiting section of each of the connecting components is larger than the diameter of the corresponding first plugging head; the end face of the limiting section of each of the connecting components close to the corresponding first plugging head can be in contact with the outer side wall of the first component to be sealed; when the limiting section of each of the connecting components is in contact with the outer side wall of the first component to be sealed, each of the first plugging heads can plug the inner opening of the corresponding through hole.

[0008] Preferably, the surface of each of the first plugging bodies close to the first component to be sealed is a plugging surface. Each of the plugging surfaces is completely placed in the corresponding through hole. The distance between each of the plugging surfaces and the plane where the inner opening of the corresponding through hole is located is 0 mm to 0.2 mm.

[0009] Preferably, the surface of each of the first plugging bodies close to the inner side wall of the first component to be sealed is a plane.

[0010] Preferably, it further includes a second plugging device, which includes at least one second plugging body. Each second plugging body includes a limiting member and a second plugging head that are fixedly connected to each other. The end face of each limiting member close to the corresponding second plugging head is a working face, and the projection of each second plugging head on the working face of the corresponding limiting member is located within the corresponding working face; the second plugging head can extend into one of the through holes; the working faces of each limiting member can contact the outer side wall of the first component to be sealed to limit the position of the corresponding second plugging head extending into the corresponding through hole; each second plugging head can plug the inner opening of the corresponding through hole and can allow the second component to be sealed with a sealing ring sleeved on its outer side wall to pass through the installation cavity.

[0011] Preferably, it further includes a fixing member for fixing the second plugging device to the first component to be sealed.

[0012] Preferably, the fixing member is a tape.

[0013] Preferably, each support ring is a circular ring.

[0014] Preferably, the shape of the second plugging head is different from that of the first plugging head.

[0015] The utility model has achieved the following technical effects compared with the prior art:

[0016] The utility model provides a protection device for seal ring assembly, which includes at least one first plugging device. Each first plugging device includes a support ring and at least one first plugging body, and each support ring can be connected to at least one first plugging body; each support ring can be sleeved outside the first component to be sealed. The first component to be sealed is provided with an installation cavity, and at least one through hole communicating with the installation cavity is provided on the side wall of the first component to be sealed. The opening of each through hole close to the inner wall of the first component to be sealed is an inner opening; each first plugging body can extend into one of the through holes; each first plugging body can plug the inner opening of the corresponding through hole and can allow the second component to be sealed with a sealing ring sleeved on its outer side wall to pass through the installation cavity, that is, when the first plugging body plugs the inner opening, it can allow the second component to be sealed with the sealing ring to move along the installation cavity to realize the connection between the first component to be sealed and the second component to be sealed. The first plugging body can close the inner opening end of the through hole. When the second component to be sealed passes through the through hole with the sealing ring, it can contact the sealing ring, limit the deformation of the sealing ring in the direction of the through hole, and prevent the sealing ring from extending into the through hole and being damaged by burrs, sharp edges, etc. in the through hole, which is beneficial to improving production efficiency and saving manpower and material resources. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Structural schematic diagram of the protection device for seal ring assembly provided for Embodiment 1;

[0019] Figure 2 Structural schematic diagram of the second plugging body provided for Embodiment 1;

[0020] In the figure: 100, protection device for seal ring assembly; 1, support ring; 101, threaded hole; 2, first plugging body; 201, connecting component; 202, first plugging head; 203, limiting section; 204, plugging surface; 3, first component to be sealed; 301, installation cavity; 302, through hole; 303, inner opening; 4, second plugging body; 401, limiting component; 402, second plugging head; 403, working surface. Detailed implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0022] The purpose of the present invention is to provide a protection device for seal ring assembly to solve the problems existing in the above-mentioned prior art, prevent the seal ring from being damaged during installation, and is beneficial to improving production efficiency and saving manpower and material resources.

[0023] To make the above-mentioned objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0024] Embodiment 1

[0025] As Figures 1 - 2As shown in the figure, this embodiment provides a protection device 100 for seal ring assembly, which includes at least one first plugging device. Each first plugging device includes a support ring 1 and at least one first plugging body 2. Each support ring 1 can be connected to at least one first plugging body 2. Each support ring 1 can be sleeved outside the first component to be sealed 3. The first component to be sealed 3 is provided with an installation cavity 301, and at least one through hole 302 communicating with the installation cavity 301 is provided on the side wall of the first component to be sealed 3. The opening of each through hole 302 close to the inner wall of the first component to be sealed 3 is an inner opening 303. Each first plugging body 2 can extend into one through hole 302. Each first plugging body 2 can plug the inner opening 303 of the corresponding through hole 302, and can allow the second component to be sealed with a seal ring sleeved on its outer side wall to pass through the installation cavity 301. That is, when the first plugging body 2 plugs the inner opening 303, it can allow the second component to be sealed with a seal ring to move along the installation cavity 301 to realize the connection between the first component to be sealed 3 and the second component to be sealed. The first plugging body 2 can close the inner opening 303 end of the through hole 302. When the second component to be sealed passes through the through hole 302 with a seal ring, it can contact the seal ring, limit the deformation of the seal ring in the direction of the through hole 302, and prevent the seal ring from extending into the through hole 302 and being damaged by burrs, sharp edges, etc. in the through hole 302, which is beneficial to improving production efficiency and saving manpower and material resources.

[0026] In this embodiment, at least one threaded hole 101 is provided on each support ring 1. Each first plugging body 2 includes a connecting component 201 and a first plugging head 202 that are fixedly connected to each other. The first plugging head 202 is cylindrical. Each connecting component 201 can be threadedly connected to a threaded hole 101. That is, an external thread is provided on the outer side wall of each connecting component 201, and the connecting component 201 is threadedly connected to the threaded hole 101 through the external thread. Each first plugging head 202 can extend into one through hole 302. Each first plugging head 202 can plug the inner opening 303 of the corresponding through hole 302, and can allow the second component to be sealed with a seal ring sleeved on its outer side wall to pass through the installation cavity 301. The first plugging head 202 is used to plug the circular through hole 302, and the outer diameter of the first plugging head 202 is the same as the inner diameter of the through hole 302 it plugs. By turning the connecting component 201, the connecting component 201 drives the first plugging head 202 to move towards the inside of the installation cavity 301 until the end of the first plugging head 202 far from the connecting component 201 is basically flush with the inner wall of the first component to be sealed 3, so as to realize the plugging of the inner opening 303 of the through hole 302. When the second component to be sealed passes through the through hole 302 with a seal ring, the end of the first plugging head 202 far from the connecting component 201 can contact the seal ring, limit the deformation of the seal ring in the direction of the through hole 302, and prevent the seal ring from extending into the through hole 302 and being damaged by burrs, sharp edges, etc. in the through hole 302.

[0027] In this embodiment, one end of each connecting component 201 of each first plugging body 2 close to the corresponding first plugging head 202 is a limiting section 203, and the diameter of the limiting section 203 of each connecting component 201 is larger than the diameter of the corresponding first plugging head 202; the end face of the limiting section 203 of each connecting component 201 close to the corresponding first plugging head 202 can contact the outer side wall of the first component to be sealed 3; when the limiting section 203 of each connecting component 201 contacts the outer side wall of the first component to be sealed 3, each first plugging head 202 can plug the inner opening 303 of the corresponding through hole 302. By contacting the outer side wall of the first component to be sealed 3, the limiting section 203 of the connecting component 201 can limit the insertion amount of the first plugging head 202 in the through hole 302, that is, by screwing the connecting component 201 until it can no longer be screwed, the first plugging head 202 can be just flush with the inner wall of the first component to be sealed 3, realizing the plugging of the inner opening 303 of the through hole 302, which is convenient for operation.

[0028] In this embodiment, the surface of each first plugging body 2 close to the first component to be sealed 3 is a plugging surface 204, each plugging surface 204 is completely placed in the corresponding through hole 302, and the distance between each plugging surface 204 and the plane where the inner opening 303 of the corresponding through hole 302 is located is 0 mm to 0.2 mm. As a preferred embodiment, the distance between each plugging surface 204 and the plane where the inner opening 303 of the corresponding through hole 302 is located is 0 mm. Considering factors such as machining errors, during actual machining and manufacturing, it is necessary to ensure that the distance between each plugging surface 204 and the plane where the inner opening 303 of the corresponding through hole 302 is located is less than 0.2 mm to prevent the interference fit of the sealing ring from entering the through hole 302.

[0029] In this embodiment, the surface of each first plugging body 2 close to the inner side wall of the first component to be sealed 3 is a plane.

[0030] In this embodiment, each support ring 1 is a circular ring.

[0031] In this embodiment, a second plugging device is further included. The second plugging device includes at least one second plugging body 4. Each second plugging body 4 includes a limiting member 401 and a second plugging head 402 that are fixedly connected to each other. The end face of each limiting member 401 close to the corresponding second plugging head 402 is a working face 403. The projection of each second plugging head 402 on the working face 403 of the corresponding limiting member 401 is located within the corresponding working face 403. The second plugging head 402 can extend into a through hole 302. The working face 403 of each limiting member 401 can contact the outer side wall of the first component to be sealed 3 to limit the position of the corresponding second plugging head 402 extending into the corresponding through hole 302. Each second plugging head 402 can plug the inner opening 303 of the corresponding through hole 302 and allow the second component to be sealed with a sealing ring sleeved on its outer side wall and entering the installation cavity 301 to pass through. The shape of the second plugging head 402 is different from that of the first plugging head 202. The second plugging head 402 matches the shape of the through hole 302 it plugs. The second plugging head 402 is a special-shaped plugging head. For example, the cross section of the second plugging head 402 is waist-shaped to plug the waist-shaped through hole 302. The limiting member 401 can be held by hand, and the second plugging head 402 is inserted into the through hole 302 with the same shape until the limiting member 401 contacts the outer side wall of the first component to be sealed 3. At this time, the second plugging head 402 is just basically flush with the inner side wall of the first component to be sealed 3, that is, the inner opening 303 of the corresponding through hole 302 is plugged.

[0032] It should be noted that the shapes of the first plugging head 202 and the second plugging head 402 can be adjusted and set according to the shape of the through hole 302 on the first component to be sealed 3.

[0033] In this embodiment, a fixing component is further included. The fixing component is used to fix the second plugging device on the first component to be sealed 3 to prevent the second plugging device from loosening.

[0034] In this embodiment, the fixing component is a tape.

[0035] As a feasible implementation manner, the first component to be sealed 3 is a lubricating oil pipe, the second component to be sealed is a lubricating oil pipe core sub-assembly, and at least one sealing ring is sleeved on the outer side of the second component to be sealed. There are 4 circular through holes 302 and one elliptical through hole 302 on the lubricating oil pipe; correspondingly, there is one first plugging device, four first plugging bodies 2, and one second plugging body 4. The length of the connecting component 201 is 24 mm, and the connecting component 201 is provided with an external thread of M12; one end of the connecting component 201 away from the first plugging head 202 is provided with a groove with a width of 2 mm and a depth of 3.5 mm. This groove is used to cooperate with a screwdriver to facilitate the assembly of the connecting component 201 into the threaded hole 101 of the support ring 1; the first plugging head 202 is of a length of with a diameter of a cylinder. There is a fillet with a radius of R0.5 around the first plugging head 202, and the first plugging head 202 is inserted into the through hole 302. The outer diameter of the support ring 1 is Φ95mm, and the inner hole is with a wall thickness of about 12.5mm. The threaded hole 101 of the support ring 1 is a threaded hole 101 with M12. The length of the limiting member 401 is 9.1mm, the width is 8mm, the radius of the arc segments at both ends of the limiting member 401 is 4mm, and there is a fillet with a radius of R0.5mm around the limiting member 401. The length of the second plugging head 402 is 6.9mm, the width is 4mm, the radius of the arc segments at both ends is 2mm, and there is a fillet with a radius of R0.5mm around it. The width of the tape is 15mm.

[0036] Embodiment 2

[0037] This embodiment provides a method for using the protection device 100 for assembling a sealing ring in Embodiment 1, including the following steps:

[0038] S1. Sleeve each support ring 1 onto the first component to be sealed 3, so that each first plugging body 2 extends into a through hole 302 and plugs the inner opening 303 of the corresponding through hole 302.

[0039] S2. Insert the second component to be sealed with a sealing ring sleeved on its outer wall into the installation cavity 301 of the first component to be sealed 3. When the sealing ring passes through the through hole 302, the corresponding first plugging body 2 can contact the sealing ring and prevent the sealing ring from entering the through hole 302.

[0040] S3. After the second component to be sealed is installed on the first component to be sealed 3, remove each first plugging device from the first component to be sealed 3.

[0041] In this embodiment, the protection device 100 for assembling a sealing ring further includes a second plugging device. The second plugging device includes at least one second plugging body 4. Each second plugging body 4 includes a limiting member 401 and a second plugging head 402 that are fixedly connected to each other. The end face of each limiting member 401 close to the corresponding second plugging head 402 is a working face 403. The projection of each second plugging head 402 on the working face 403 of the corresponding limiting member 401 is located within the corresponding working face 403. The second plugging head 402 can extend into a through hole 302. The working face 403 of each limiting member 401 can contact the outer wall of the first component to be sealed 3 to limit the position of the corresponding second plugging head 402 extending into the corresponding through hole 302. Each second plugging head 402 can plug the inner opening 303 of the corresponding through hole 302 and can allow the second component to be sealed with a sealing ring sleeved on its outer wall and entering the installation cavity 301 to pass through. The shape of the second plugging head 402 is different from that of the first plugging head 202.

[0042] S1 further includes: inserting at least one second plugging head 402 into a through hole 302 of the first component to be sealed 3 and plugging the inner opening 303 of the corresponding through hole 302;

[0043] S3 further includes: after the second component to be sealed is installed on the first component to be sealed 3, removing each second plugging device from the first component to be sealed 3.

[0044] In this embodiment, taking the oil slide pipe assembly as an example, the usage method of the protection device 100 for sealing ring assembly will be further described:

[0045] S1 includes: after assembling the support ring 1 onto the oil slide pipe, aligning a threaded hole 101 of the support ring 1 with a through hole 302 of the oil slide pipe, and screwing the connecting component 201 of a first plugging body 2 to install the corresponding first plugging head 202 into the through hole 302 until it cannot be screwed any further; in the same installation manner, install the remaining three first plugging heads 202 into the three through holes 302 correspondingly arranged with the threaded holes 101 of the support ring 1. Install the second plugging body 4 into the through hole 302 with a corresponding shape and stick the second plugging body 4 on the outer wall of the oil slide pipe with tape;

[0046] S2 includes: inserting the oil slide pipe core subassembly with a sealing ring sleeved on its outer wall into the installation cavity 301 of the first component to be sealed 3 for assembly with the oil slide pipe;

[0047] S3 includes: after the assembly is completed, removing the tape, the second plugging body 4, and the first plugging body 2.

[0048] It should be noted that the number and setting positions of the threaded holes 101 on the support ring 1 are set according to the positions and quantities of the through holes 302 in the circumferential direction of the first component to be sealed 3 to achieve matching.

[0049] In the present utility model, specific examples are used to elaborate on the principle and implementation manner of the present utility model. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A protection device for sealing ring assembly, characterized in that: Comprising at least one first sealing device, each of the first sealing devices includes a support ring and at least one first sealing body, and each of the support rings can be connected to at least one of the first sealing bodies; each of the support rings can be sleeved outside a first component to be sealed, the first component to be sealed is provided with an installation cavity, and at least one through hole communicating with the installation cavity is provided on the side wall of the first component to be sealed, and an opening of each through hole close to the inner wall of the first component to be sealed is an inner opening; each of the first sealing bodies can extend into one of the through holes; each of the first sealing bodies can seal the inner opening of the corresponding through hole and can allow a second component to be sealed with a sealing ring sleeved on its outer side wall to pass through into the installation cavity.

2. The protection device for assembling the sealing ring according to claim 1, wherein: At least one threaded hole is provided on each of the support rings, each of the first sealing bodies includes a connecting component and a first sealing head which are fixedly connected to each other, the first sealing head is cylindrical, and each of the connecting components can be threadedly connected to one of the threaded holes; each of the first sealing heads can extend into one of the through holes; each of the first sealing heads can seal the inner opening of the corresponding through hole and can allow the second component to be sealed with a sealing ring sleeved on its outer side wall to pass through into the installation cavity.

3. The protection device for seal ring assembly according to claim 2, characterized in that: One end of each of the connecting components of each of the first sealing bodies close to the corresponding first sealing head is a limiting section, and the diameter of the limiting section of each of the connecting components is larger than the diameter of the corresponding first sealing head; the end face of the limiting section of each of the connecting components close to the corresponding first sealing head can be in contact with the outer side wall of the first component to be sealed; when the limiting section of each of the connecting components is in contact with the outer side wall of the first component to be sealed, each of the first sealing heads can seal the inner opening of the corresponding through hole.

4. The protection device for assembling the sealing ring according to claim 1, characterized in that: The surface of each of the first sealing bodies close to the first component to be sealed is a sealing surface, each of the sealing surfaces is completely placed in the corresponding through hole, and the distance between each of the sealing surfaces and the plane where the inner opening of the corresponding through hole is located is 0 mm to 0.2 mm.

5. The protection device for assembling the sealing ring according to any one of claims 1-4, characterized in that: The surface of each of the first sealing bodies close to the inner side wall of the first component to be sealed is a plane.

6. The protection device for assembling the sealing ring according to claim 2, wherein: Further comprising a second sealing device, the second sealing device includes at least one second sealing body, each of the second sealing bodies includes a limiting component and a second sealing head which are fixedly connected to each other, the end face of each of the limiting components close to the corresponding second sealing head is a working surface, and the projection of each of the second sealing heads on the working surface of the corresponding limiting component is located within the corresponding working surface; the second sealing head can extend into one of the through holes; the working surface of each of the limiting components can limit the position of the corresponding second sealing head extending into the corresponding through hole by contacting with the outer side wall of the first component to be sealed; each of the second sealing heads can seal the inner opening of the corresponding through hole and can allow the second component to be sealed with a sealing ring sleeved on its outer side wall to pass through into the installation cavity.

7. The protection device for assembling the sealing ring according to claim 6, wherein: Further comprising a fixing component, the fixing component is used for fixing the second sealing device on the first component to be sealed.

8. The protection device for assembling the sealing ring according to claim 7, characterized in that: The fixing component is an adhesive tape.

9. The protection device for assembling the sealing ring according to any one of claims 1-4, characterized in that: Each of the support rings is a circular ring.

10. The protection device for seal ring assembly according to claim 6, characterized in that: The shape of the second plugging head is different from that of the first plugging head.

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