Assembly tool for annular sealing element

Abstract

The invention relates to the technical field of annular sealing element assembling, and discloses an annular sealing element assembling tool which comprises a main body frame, a clamping assembly is arranged at the bottom of the main body frame, an auxiliary assembly is arranged between the clamping assembly and the main body frame, a fixing assembly is arranged at the bottom of the clamping assembly, and a cleaning assembly is arranged at the top of the clamping assembly. The space between a clamping block and a sealing piece is filled with magnetorheological fluid, the magnetorheological fluid is solidified under the action of an electromagnet, deformation of the sealing piece is reduced, a first piston plate of an auxiliary assembly extrudes air to clean dust in the sealing piece, and when the clamping block is loosened, a synchronous plate drives a third piston plate to move to assist in discharging of the magnetorheological fluid; the tool solves the problems that a traditional assembling tool is prone to deformation when clamping the sealing element, impurities are difficult to clean before assembling and the like, the sealing performance of the sealing element is guaranteed, the assembling efficiency and quality are improved, and the tool is suitable for assembling operation of the annular sealing element.

Description

Technical Field

[0001] The invention relates to the technical field of annular seal assembly, in particular to an annular seal assembly tool. Background Art

[0002] During the assembly process of annular seals, traditional assembly tooling has many problems. On the one hand, when the annular seals are clamped and fixed, slight deformations are often caused to the seals. Especially for metal annular seals, direct clamping can easily affect their sealing performance, resulting in poor sealing in actual use.

[0003] On the other hand, before assembly, it is difficult to clean out impurities such as dust remaining inside the annular seal. These impurities will be trapped between the seal and the workpiece during assembly, further reducing the overall sealing performance.

[0004] To this end, the present invention provides an assembly tool for an annular seal to solve the above problems. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides an assembly tool for an annular seal to solve the above problems.

[0006] The cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame.

[0007] Preferably: a hydraulic cylinder is fixedly installed inside the main frame, the output end of the hydraulic cylinder movably passes through the bottom of the main frame, a moving block is fixedly installed at the bottom of the output end of the hydraulic cylinder, a pull rod is hinged between the outer side of the moving block and the corresponding connecting rod, and the pull rod is hinged between the connecting rods located on the inner side.

[0008] Preferably: a second one-way valve is fixedly installed at the connection point between the movable tube and the second piston plate, and the connection direction of the second one-way valve is from the inside of the external box to the inside of the movable tube. A feed pipe is fixedly installed at the outer end of the external box, and a first one-way valve is fixedly installed at the connection point between the feed pipe and the external box, and the connection direction of the first one-way valve is from the inside of the feed pipe to the inside of the external box.

[0009] Preferably, the external box is filled with magnetorheological fluid, the feed pipe is connected to the external magnetorheological fluid storage box, and an electromagnet is fixedly installed inside the moving block.

[0010] Preferably, the clamping block is attached to the outer side of the annular seal, and a spring is fixedly installed between the second piston plate and the inner wall of the external box.

[0011] Preferably: the interior of the shell is slidably connected to a third piston plate, the inner side edge of the third piston plate is fixedly installed with a moving rod, the moving rod movably passes through the inner wall of the shell, the inner end of the moving rod is fixedly installed with a synchronization plate, the synchronization plate is fixedly installed on the top of the corresponding clamping block, and the inner side wall of the shell is fixedly installed with a fourth one-way valve, and the connection direction of the fourth one-way valve is from the outside to the inside of the shell.

[0012] Preferably: a bracket is fixedly installed on the inner side of the synchronization plate, a nozzle is fixedly installed on the bottom of the bracket, a hose is fixedly installed between the bracket and the shell, a third one-way valve is fixedly installed at the connection between the hose and the shell, the communication direction of the third one-way valve is from the inside of the shell to the inside of the hose, and the connection point between the third one-way valve and the shell is located on the inner side of the third piston plate.

[0013] Preferably, the interior of the bracket is hollow, the hose is connected to the nozzle through the interior of the bracket, and the nozzle is located directly above the corresponding groove.

[0014] Preferably: the auxiliary component includes an outer tube, which is fixedly mounted on the bottom of the bottom block, and the interior of the outer tube is slidably connected to a first piston plate, and the interior of the first piston plate is provided with a blowing hole, and the output end of the hydraulic cylinder passes through the outer tube and the interior of the first piston plate, and the first piston plate is fixedly mounted on the outside of the output end of the hydraulic cylinder.

[0015] Beneficial effects

[0016] The present invention provides an assembly tool for an annular seal. Compared with the prior art, it has the following advantages:

[0017] 1. The assembly tooling of this annular seal adopts a unique clamping and fixing method. When the clamping block clamps the metal annular seal, magnetorheological fluid is filled between the clamping block and the seal and solidified under the action of the electromagnet. The force applied to the seal by the clamping block is only the reverse force of the spring, which effectively reduces the deformation effect of direct clamping on the metal annular seal and ensures that the sealing performance of the seal is not affected.

[0018] 2. Before clamping, the assembly tooling of the annular seal moves the first piston plate in the auxiliary component upward to squeeze the air, which is discharged downward through the blowing hole to blow air into the inside of the metal annular seal, which can effectively clean the dust remaining inside and ensure better overall sealing after assembly.

[0019] 3. In the assembly tooling of the annular seal, when the clamp block is separated from the metal annular seal, the third piston plate is driven inward by the synchronous plate, and the air sucked into the shell is sprayed into the groove through the nozzle, which assists the used magnetorheological fluid in the groove to be quickly discharged from the bottom of the groove, ensuring that the magnetorheological fluid can be accurately filled into the groove next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 It is a three-dimensional diagram of the external structure of the present invention;

[0022] Figure 2 It is a three-dimensional diagram of the overall structure of the present invention;

[0023] Figure 3 The present invention Figure 2 A magnified view of the structure at center A;

[0024] Figure 4 It is a three-dimensional diagram of the bottom structure of the present invention;

[0025] Figure 5 is a perspective view of the cross-sectional structure of the auxiliary component of the present invention;

[0026] Figure 6 The present invention Figure 5 A magnified view of the structure at point B in the middle;

[0027] Figure 7 This is a three-dimensional diagram of the external structure of the fixing component and the cleaning component of the present invention;

[0028] Figure 8 It is a three-dimensional diagram of the internal cross-sectional structure of the fixing component and the cleaning component of the present invention.

[0029] In the figure: 1. Main frame; 2. Clamping assembly; 21. Hydraulic cylinder; 22. Bottom block; 23. Connecting rod; 24. Pull rod; 25. Moving block; 3. Auxiliary assembly; 31. External cylinder; 32. First piston plate; 33. Blowing hole; 4. Fixing assembly; 41. External box; 42. Clamping block; 43. Feed pipe; 44. First one-way valve; 45. Groove; 46. Through hole; 47. Moving pipe; 48. Second piston plate; 49. Second one-way valve; 410. Spring; 5. Cleaning assembly; 51. Housing; 52. Synchronizing plate; 53. Bracket; 54. Nozzle; 55. Hose; 56. Third one-way valve; 57. Moving rod; 58. Fourth one-way valve; 59. Third piston plate. DETAILED DESCRIPTION

[0030] It should be noted that in the description of the embodiments of the present application, the terms "front, rear", "left, right", "up, down", etc. indicating directions or positional relationships are all based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present application. The terms "install", "connect", and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] The present application will be further described in detail below through the accompanying drawings and examples.

[0032] Reference Figures 1 to 8The embodiment of the present application provides an assembly tool for an annular seal, comprising a main frame 1, a clamping assembly 2 is provided at the bottom of the main frame 1, an auxiliary assembly 3 is provided between the clamping assemblies 2, a fixing assembly 4 is provided at the bottom of the clamping assembly 2, a cleaning assembly 5 is provided on the top of the fixing assembly 4, the clamping assembly 2 comprises a bottom block 22, the bottom block 22 is fixedly mounted on the bottom of the main frame 1, a connecting rod 23 is hinged on the outer side of the bottom block 22, and the cleaning assembly 5 comprises a shell 51, which is hinged between the bottom of the corresponding connecting rod 23. The fixing assembly 4 includes an external box 41, which is fixedly mounted on the bottom of the outer shell 51. The interior of the external box 41 is slidably connected to a second piston plate 48. A moving tube 47 is fixedly mounted on the inner end of the second piston plate 48. A clamping block 42 is fixedly mounted between the inner ends of the moving tube 47. A groove 45 is provided on the inner side of the clamping block 42. A through hole 46 is provided inside the groove 45. The through hole 46 is communicated with the interior of the clamping block 42, the moving tube 47 is communicated with the interior of the clamping block 42, and the moving tube 47 is communicated with the interior of the external box 41.

[0033] A hydraulic cylinder 21 is fixedly installed inside the main frame 1, and the output end of the hydraulic cylinder 21 is movable through the bottom of the main frame 1. A moving block 25 is fixedly installed at the bottom of the output end of the hydraulic cylinder 21. A pull rod 24 is hinged between the outer side of the moving block 25 and the corresponding connecting rod 23, and the pull rod 24 is hinged between the connecting rods 23 located on the inner side.

[0034] A second one-way valve 49 is fixedly installed at the connection between the movable tube 47 and the second piston plate 48. The second one-way valve 49 connects from the interior of the external box 41 to the interior of the movable tube 47. A feed pipe 43 is fixedly installed at the outer end of the external box 41. A first one-way valve 44 is fixedly installed at the connection between the feed pipe 43 and the external box 41. The first one-way valve 44 connects from the interior of the feed pipe 43 to the interior of the external box 41. The interior of the external box 41 is filled with magnetorheological fluid. The feed pipe 43 is connected to the external magnetorheological fluid storage tank. An electromagnet is fixedly installed inside the movable block 25. The clamping block 42 fits against the outside of the annular seal. A spring 410 is fixedly installed between the second piston plate 48 and the inner wall of the external box 41.

[0035] In this embodiment, when the metal ring seal is assembled, the metal ring seal is clamped. During clamping, by starting the hydraulic cylinder 21, the output end of the hydraulic cylinder 21 moves upward and drives the moving block 25 to move upward. The moving block 25 moves upward and drives the connecting rod 23 to swing inward through the pull rod 24, thereby driving the external box 41 and the outer shell 51 to move inward, thereby realizing the synchronous inward movement of multiple clamping blocks 42. The clamping blocks 42 are clamped on the outside of the metal ring seal, and during clamping, the clamping blocks 42 are squeezed and gradually move the second piston plate 48 toward the inside of the external box 41 through the moving tube 47. At this time, the spring 410 is compressed, and when the second piston plate 48 moves, it squeezes the internal magnetorheological fluid. Under the action of the squeezing force, the magnetorheological fluid passes through the second one-way valve 49 and enters the inside of the moving tube 47, thereby entering the inside of the clamping block 42 and being discharged into the recessed groove through the inner through-hole 46. Inside the groove 45, the magnetorheological fluid enters the groove 45, so that the magnetorheological fluid can be filled between the clamp block 42 and the metal ring seal. At this time, when the electromagnet is energized, the magnetorheological fluid is transformed from fluid to solid under the action of magnetic force and filled between the clamp block 42 and the metal ring seal, thereby completing the clamping and fixing of the metal ring seal by the clamp block 42. At this time, when clamping, the force applied to the metal ring seal by the clamp block 42 is only the reverse force of the spring 410. This clamping and fixing method can reduce the deformation effect of directly clamping the metal ring seal on the metal ring seal, ensuring that the metal ring seal will not produce slight deformation, thereby ensuring that the metal ring seal will not be affected during assembly; and after the clamp block 42 is released, when the spring 410 is reset, the magnetorheological fluid inside the external storage box will be refilled into the external box 41 through the first one-way valve 44 and the feed pipe 43.

[0036] Reference Figures 1 to 8 In one aspect of this embodiment, a third piston plate 59 is slidably connected to the interior of the outer shell 51, and a moving rod 57 is fixedly installed on the inner side edge of the third piston plate 59. The moving rod 57 movably passes through the inner wall of the outer shell 51, and a synchronization plate 52 is fixedly installed on the inner end of the moving rod 57. The synchronization plate 52 is fixedly installed on the top of the corresponding clamping block 42, and a fourth one-way valve 58 is fixedly installed inside the inner wall of the outer shell 51. The connection direction of the fourth one-way valve 58 is from the outside to the inside of the outer shell 51.

[0037] A bracket 53 is fixedly mounted on the inner side of the synchronizing plate 52. A nozzle 54 is fixedly mounted on the bottom of the bracket 53. A hose 55 is fixedly mounted between the bracket 53 and the housing 51. A third one-way valve 56 is fixedly mounted at the connection between the hose 55 and the housing 51. The third one-way valve 56 communicates from the interior of the housing 51 to the interior of the hose 55. The connection point between the third one-way valve 56 and the housing 51 is located on the inner side of the third piston plate 59. The interior of the bracket 53 is hollow. The hose 55 communicates with the nozzle 54 through the interior of the bracket 53. The nozzle 54 is located directly above the corresponding groove 45.

[0038] In this embodiment, when the clamping block 42 is clamped, the clamping block 42 is close to the external box 41. At this time, the synchronous plate 52 is synchronously close to the outer shell 51 and drives the third piston plate 59 to slide inside the outer shell 51 through the moving rod 57. The third piston plate 59 slides outward to suck external air into the inner shell 51 through the fourth one-way valve 58. After the clamping block 42 is clamped and separated from the metal ring seal, the spring 410 resets the clamping block 42, and the third piston plate 59 is synchronously reset and moves inward. When the third piston plate 59 moves inward, the air sucked into the inner shell 51 is discharged into the inner part of the hose 55 through the third one-way valve 56, and is transported to the inner part of the nozzle 54 through the hose 55 and the bracket 53. The nozzle 54 can spray air into the corresponding grooves 45 one by one. The air blown into the grooves 45 can assist the magnetorheological fluid in the grooves 45 to be quickly discharged from the bottom of the grooves 45 after use, ensuring that the next magnetorheological fluid can be accurately filled into the grooves 45.

[0039] Reference Figures 1 to 8 In one aspect of this embodiment, the auxiliary component 3 includes an outer tube 31, which is fixedly mounted on the bottom of the bottom block 22. The interior of the outer tube 31 is slidably connected to a first piston plate 32, and the interior of the first piston plate 32 is provided with a blowing hole 33. The output end of the hydraulic cylinder 21 passes through the outer tube 31 and the interior of the first piston plate 32, and the first piston plate 32 is fixedly mounted on the outside of the output end of the hydraulic cylinder 21.

[0040] In this embodiment, when the clamping block 42 clamps the metal ring seal, the clamping block 42 is located on the outside of the metal ring seal, and the main frame 1 and the outer tube 31 are located on the top of the metal ring seal. When the clamping block 42 approaches the metal ring seal, the output end of the hydraulic cylinder 21 moves upward. When the output end moves upward, it will drive the first piston plate 32 to move upward synchronously. The upward movement of the first piston plate 32 can squeeze the air between the first piston plate 32 and the outer tube 31, and the squeezed air will be discharged downward through the blowing hole 33. The air discharged downward will be blown into the inside of the metal ring seal below. By blowing air into the inside of the metal ring seal before clamping, the dust remaining inside the metal ring seal can be cleaned. By cleaning the dust, it can be ensured that no impurities will remain between the metal ring seal and the workpiece during assembly, thereby ensuring that the overall sealing after assembly is better guaranteed.

[0041] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0042] Working principle: Clamping process: Start the hydraulic cylinder 21, its output end moves upward and drives the moving block 25 to move upward, and the moving block 25 moves upward and drives the connecting rod 23 to swing inward through the pull rod 24, thereby driving the external box 41 and the outer shell 51 to move inward, and multiple clamping blocks 42 move inward synchronously and fit on the outside of the metal ring seal. After being squeezed, the clamping block 42 gradually moves the second piston plate 48 toward the inside of the external box 41 through the moving tube 47. The spring 410 is compressed, and the second piston plate 48 squeezes the magnetorheological fluid inside when it moves. Under the action of the squeezing force, the magnetorheological fluid enters the inside of the moving tube 47 through the second one-way valve 49, and then enters the inside of the clamping block 42, and is discharged into the inside of the groove 45 through the inner through-hole 46. At this time, the electromagnet is energized, and the magnetorheological fluid is transformed from fluid to solid under the action of the magnetic force and filled between the clamping block 42 and the metal ring seal, completing the clamping and fixing of the metal ring seal by the clamping block 42;

[0043] Cleaning process: When the clamping block 42 approaches the metal ring seal, the output end of the hydraulic cylinder 21 moves upward, driving the first piston plate 32 to move upward synchronously, squeezing the air between the first piston plate 32 and the outer cylinder 31. The squeezed air is discharged downward through the blowing hole 33 and blown into the metal ring seal below, cleaning the remaining dust inside.

[0044] Loosening and magnetorheological fluid discharge auxiliary process: when the clamp 42 is released, the spring 410 resets, and at the same time, the clamp 42 resets, driving the synchronous plate 52 to reset synchronously and driving the third piston plate 59 to move inward through the moving rod 57. When the third piston plate 59 moves inward, the air sucked into the inside of the shell 51 is discharged into the inside of the hose 55 through the third one-way valve 56, and is transported to the inside of the nozzle 54 through the hose 55 and the bracket 53. The air is sprayed into the corresponding grooves 45 one by one through the nozzle 54, and the used magnetorheological fluid in the auxiliary groove 45 is quickly discharged from the bottom of the groove 45. At the same time, when the spring 410 resets, the magnetorheological fluid in the external storage box will be refilled into the inside of the external box 41 through the first one-way valve 44 and the feed pipe 43.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. 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 explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An assembly tool for an annular seal, comprising a main frame (1), characterized in that: A clamping assembly (2) is provided at the bottom of the main frame (1), an auxiliary assembly (3) is provided between the clamping assemblies (2), a fixing assembly (4) is provided at the bottom of the clamping assembly (2), and a cleaning assembly (5) is provided at the top of the fixing assembly (4), the clamping assembly (2) comprises a bottom block (22), the bottom block (22) is fixedly mounted at the bottom of the main frame (1), a connecting rod (23) is hingedly connected to the outer side of the bottom block (22), the cleaning assembly (5) comprises an outer shell (51), the outer shell (51) is hingedly connected between the bottoms of the corresponding connecting rods (23), the fixing assembly (4) comprises an outer box (4 1), the external box (41) is fixedly mounted on the bottom of the outer shell (51), the interior of the external box (41) is slidably connected to a second piston plate (48), the inner end of the second piston plate (48) is fixedly mounted with a moving tube (47), a clamping block (42) is fixedly mounted between the inner ends of the moving tube (47), a groove (45) is provided on the inner side of the clamping block (42), a through hole (46) is provided inside the groove (45), the through hole (46) is communicated with the interior of the clamping block (42), the moving tube (47) is communicated with the interior of the clamping block (42), and the moving tube (47) is communicated with the interior of the external box (41).

2. The assembly tool for an annular seal according to claim 1, characterized in that: A hydraulic cylinder (21) is fixedly installed inside the main frame (1), and the output end of the hydraulic cylinder (21) movably passes through the bottom of the main frame (1). A moving block (25) is fixedly installed at the bottom of the output end of the hydraulic cylinder (21), and a pull rod (24) is hinged between the outer side of the moving block (25) and the corresponding connecting rod (23), and the pull rod (24) is hinged between the connecting rods (23) located on the inner side.

3. The assembly tool for an annular seal according to claim 2, characterized in that: A second one-way valve (49) is fixedly installed at the connection point between the movable tube (47) and the second piston plate (48), and the connection direction of the second one-way valve (49) is from the inside of the external box (41) to the inside of the movable tube (47). A feed pipe (43) is fixedly installed at the outer end of the external box (41), and a first one-way valve (44) is fixedly installed at the connection point between the feed pipe (43) and the external box (41), and the connection direction of the first one-way valve (44) is from the inside of the feed pipe (43) to the inside of the external box (41).

4. The assembly tool for an annular seal according to claim 3, characterized in that: The external box (41) is filled with magnetorheological fluid, the feed pipe (43) is connected to the external magnetorheological fluid storage box, and an electromagnet is fixedly installed inside the moving block (25).

5. The assembly tool for an annular seal according to claim 4, characterized in that: The clamping block (42) is fitted onto the outer side of the annular seal, and a spring (410) is fixedly installed between the second piston plate (48) and the inner wall of the outer box (41).

6. The assembly tool for an annular seal according to claim 1, characterized in that: A third piston plate (59) is slidably connected to the interior of the outer shell (51), a moving rod (57) is fixedly mounted on the inner side edge of the third piston plate (59), the moving rod (57) movably passes through the inner side wall of the outer shell (51), a synchronizing plate (52) is fixedly mounted on the inner side end of the moving rod (57), the synchronizing plate (52) is fixedly mounted on the top of the corresponding clamping block (42), a fourth one-way valve (58) is fixedly mounted inside the inner side wall of the outer shell (51), and the communication direction of the fourth one-way valve (58) is from the outside of the outer shell (51) to the inside.

7. The assembly tool for an annular seal according to claim 6, characterized in that: A bracket (53) is fixedly mounted on the inner side of the synchronization plate (52); a nozzle (54) is fixedly mounted on the bottom of the bracket (53); a hose (55) is fixedly mounted between the bracket (53) and the outer shell (51); a third one-way valve (56) is fixedly mounted at the connection between the hose (55) and the outer shell (51); the communication direction of the third one-way valve (56) is from the inside of the outer shell (51) to the inside of the hose (55); and the connection point between the third one-way valve (56) and the outer shell (51) is located at the inner side of the third piston plate (59).

8. The assembly tool for an annular seal according to claim 7, characterized in that: The interior of the bracket (53) is hollow, and the hose (55) is connected to the nozzle (54) through the interior of the bracket (53). The nozzle (54) is located directly above the corresponding groove (45).

9. The assembly tool for an annular seal according to claim 2, characterized in that: The auxiliary component (3) comprises an outer tube (31), the outer tube (31) being fixedly mounted on the bottom of the bottom block (22), a first piston plate (32) being slidably connected to the interior of the outer tube (31), a blowing hole (33) being provided inside the first piston plate (32), an output end of the hydraulic cylinder (21) passing through the outer tube (31) and the interior of the first piston plate (32), and the first piston plate (32) being fixedly mounted on the outside of the output end of the hydraulic cylinder (21).

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