Magnetic suspension turnout lockpin gearbox sealing installation tool

Abstract

The invention discloses a magnetic levitation turnout lockpin gearbox sealing installation tool which comprises a sealing tool part, the sealing tool part comprises a sealing installation part, a positioning part and a force application part, and the sealing installation part and the force application part are connected to the two sides of the positioning part respectively. The sealing tool part is provided with a positioning part, the positioning part extends outwards and protrudes in the radial direction of the sealing tool part from the peripheral face of the sealing installation part, the peripheral face of the sealing installation part is provided with a sealing guide face, the sealing guide face is used for being sleeved with a sealing body, and the side, facing the sealing installation part, of the positioning part is provided with an installation face. And the mounting surface is exposed out of the outer peripheral surface of the sealing mounting part and is used for abutting against the sealing body. The sealing body can be tightly installed in place, the installation quality of the sealing body is greatly improved, meanwhile, the time for replacing the sealing body is shortened, and the working efficiency of installation of the sealing body is greatly improved.

Description

Technical Field

[0001] The present invention relates to a rail transit, and particularly to a sealing installation tool for a maglev turnout locking pin gearbox. Background Art

[0002] The maglev turnout locking pin gearbox has two identical seals, which are respectively located on both sides of the gearbox. One is for the input shaft of the gearbox, and this shaft is connected to the motor drive shaft; the other is for the output shaft connected to the encoder. During the normal application process of the gearbox, the lubricating oil in the locking pin gearbox will leak due to the wear of the sealing lip. Excessive oil leakage will cause damage to the gears of the locking pin gearbox.

[0003] When replacing and installing this seal, it is rather difficult and time-consuming. Because the seal is a plastic body and the outer edge has a certain hardness. It is difficult to be directly pressed in place by manpower during installation, and there is no suitable assembly tool, so only a soft hammer can be used for knocking. It is difficult to ensure that the seal can be evenly installed around the circumference. If there is a slight carelessness or the knocking is a bit heavy during assembly, it is very likely to cause damage to the sealing lip or deformation of the outer edge, resulting in the scrapping of the seal and all previous efforts being wasted. In addition, when replacing the seal, first, the motor or encoder connected to the gearbox needs to be removed. After the seal is installed, the motor or encoder needs to be reassembled in place, which often requires prior preparation. Coupled with the seal replacement, it can only be carried out during the approximately 6-hour window period from the end of the daily operation of the maglev train to the start of the next day's operation. The time is short and the maintenance pressure is great. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies existing in the prior art. The present invention provides a sealing installation tool for a maglev turnout locking pin gearbox.

[0005] The present invention is realized through the following technical solutions:

[0006] A sealing installation tool for a maglev turnout locking pin gearbox, which includes a seal tooling component. The seal tooling component includes a seal installation part, a positioning part, and a force application part. The seal installation part and the force application part are respectively connected to both sides of the positioning part, and the positioning part protrudes radially outward from the outer peripheral surface of the seal installation part along the seal tooling component. The outer peripheral surface of the seal installation part has a seal guiding surface, and the seal guiding surface is used for sleeving a seal body. One side of the positioning part facing the seal installation part has an installation surface, and the installation surface is exposed from the outer peripheral surface of the seal installation part and is used for abutting against the seal body.

[0007] Further, the outer peripheral surface of the force application part has a gripping surface, so that a force is applied on the gripping surface and is used to drive the seal tooling component to move outward in a direction away from the seal body.

[0008] Further, one side of the force - applying part facing away from the sealing and mounting part has a knocking surface, so that a knocking tool applies a force in the direction approaching the sealing body on the knocking surface.

[0009] Further, an axial guiding hole is formed in the sealing tooling component. The axial guiding hole is recessed axially inward from one side of the sealing and mounting part facing away from the force - applying part along the axial direction of the sealing tooling component, and the axial guiding hole penetrates through the sealing and mounting part and the positioning part and extends into the force - applying part.

[0010] Further, the axial guiding hole has a first inner hole and a second inner hole. The first inner hole penetrates through the sealing and mounting part and extends into the positioning part. The second inner hole is recessed inward from the bottom of the first inner hole into the force - applying part. The inner diameter of the first inner hole is larger than that of the second inner hole, so that a positioning step is formed between the first inner hole and the second inner hole.

[0011] Further, an air - bleeding hole is also formed in the sealing tooling component. One end of the air - bleeding hole communicates with the axial guiding hole, and the other end of the air - bleeding hole extends to the outer surface of the force - applying part and is connected to the outside.

[0012] Further, one side of the positioning part facing the sealing and mounting part has a positioning groove, and the positioning groove is located at the outer end of the positioning part far from the sealing and mounting part.

[0013] Further, one end of the sealing and mounting part far from the positioning part has an inclined guiding and sliding surface, and the inclined guiding and sliding surface is in smooth transition with the sealing guiding surface.

[0014] Further, the material of the sealing tooling component is a soft and light material.

[0015] Further, the material of the sealing tooling component is a light aluminum alloy.

[0016] The beneficial effects of the present invention are as follows:

[0017] For the magnetic - floating turnout lock pin gearbox sealing and mounting tooling of the present invention, through the sealing tooling component, the sealing body is sleeved on the sealing guiding surface and tightly abuts against the mounting surface. Then, the sealing body is pressed into the sealing groove of the lock pin gearbox through the sealing tooling component, ensuring that the sealing body can be tightly installed in place, greatly improving the installation quality of the sealing body, reducing the time for replacing the sealing body, and greatly improving the working efficiency of the sealing body installation. Description of the Drawings

[0018] Figure 1 It is a schematic internal structure diagram of the magnetic - floating turnout lock pin gearbox sealing and mounting tooling according to the embodiment of the present invention.

[0019] Figure 2 Side view structural schematic diagram of the magnetic levitation turnout lock pin gearbox sealing installation tooling according to an embodiment of the present invention.

[0020] Figure 3 Internal structural schematic diagram of the magnetic levitation turnout lock pin gearbox sealing installation tooling during use according to an embodiment of the present invention.

[0021] Figure 4 Internal structural schematic diagram of the magnetic levitation turnout lock pin gearbox sealing installation tooling after use according to an embodiment of the present invention.

[0022] Description of the reference numerals:

[0023] Sealing tooling component 1

[0024] Sealing installation part 11

[0025] Sealing guide surface 111

[0026] Inclined guide sliding surface 112

[0027] Positioning part 12

[0028] Installation surface 121

[0029] Positioning groove 122

[0030] Force application part 13

[0031] Grip surface 131

[0032] Knocking surface 132

[0033] Axial guide hole 14

[0034] First inner hole 141

[0035] Second inner hole 142

[0036] Air vent hole 15

[0037] Sealing body 10

[0038] Gearbox output shaft 20

[0039] Gearbox housing 30

[0040] Lubricating oil 40 Detailed implementation manners

[0041] The descriptions of the following embodiments refer to the accompanying drawings to exemplify specific embodiments in which the present invention can be implemented.

[0042] Such as Figure 1 、 Figure 2 、 Figure 3 And Figure 4As shown in the figure, this embodiment discloses a magnetic levitation turnout lock pin gearbox sealing installation tooling. The magnetic levitation turnout lock pin gearbox sealing installation tooling includes a sealing tooling component 1. The sealing tooling component 1 includes a sealing installation part 11, a positioning part 12, and a force application part 13. The sealing installation part 11 and the force application part 13 are respectively connected to both sides of the positioning part 12. And the positioning part 12 extends and protrudes radially outward from the outer peripheral surface of the sealing installation part 11 along the radial direction of the sealing tooling component 1. There is a sealing guiding surface 111 on the outer peripheral surface of the sealing installation part 11. The sealing guiding surface 111 is used to sleeved with a sealing body 10. On the side of the positioning part 12 facing the sealing installation part 11, there is an installation surface 121. The installation surface 121 is exposed on the outer peripheral surface of the sealing installation part 11 and is used to abut against the sealing body 10. Install the sealing body 10 on the sealing tooling component 1 along the sealing guiding surface 111. The inner wall surface of the sealing body 10 is sleeved on the sealing guiding surface 111, and the peripheral side surfaces of the sealing body 10 are closely abutted against the installation surface 121, so as to realize the positioning and installation of the sealing body 10 on the sealing tooling component 1. Then remove the old sealing body 10 from the sealing groove position of the lock pin gearbox. Premature removal of the old seal will cause a large amount of lubricating oil 40 to leak. After that, press the sealing body 10 into the sealing groove of the lock pin gearbox through the sealing tooling component 1, ensure that the sealing body 10 can be tightly installed in place, greatly improve the installation quality of the sealing body 10, and at the same time reduce the time for replacing the sealing body 10, greatly improving the working efficiency of installing the sealing body 10.

[0043] There is a gripping surface 131 on the outer peripheral surface of the force application part 13, so as to apply a force on the gripping surface 131 and be used to drive the sealing tooling component 1 to move outward in a direction away from the sealing body 10. After the sealing body 10 is installed in place, grip the gripping surface 131 of the sealing tooling component 1 and apply a force on the gripping surface 131, thereby driving the sealing tooling component 1 to move outward in a direction away from the sealing body 10, so that the sealing tooling component 1 is pulled outwards, which is convenient to use.

[0044] Of course, when installing the sealing body 10, it is also possible to grip the gripping surface 131 of the sealing tooling component 1 and drive the sealing tooling component 1 to move inward in a direction close to the sealing body 10, so as to slowly press the sealing body 10 into the sealing groove.

[0045] One side of the force application part 13 facing away from the sealing and mounting part 11 has a striking surface 132, so that a striking tool applies a force in the direction close to the sealing body 10 on the striking surface 132. The sealing tooling component 1 moves inward in the direction close to the sealing body 10, so that the periphery of the sealing body 10 is evenly aligned with the sealing groove on the locking pin gearbox, and the sealing body 10 is slowly pressed into the sealing groove; if necessary, a soft hammer can be used to gently tap the striking surface 132 of the sealing tooling component 1, so as to ensure that the sealing body 10 is correctly installed in place. Among them, the striking surface 132 is a plane, with a simple structure, convenient processing and manufacturing, and high stability in use.

[0046] The sealing tooling component 1 has an axial guiding hole 14 inside. The axial guiding hole 14 is recessed inward along the axis of the sealing tooling component 1 starting from the side of the sealing and mounting part 11 facing away from the force application part 13, and the axial guiding hole 14 penetrates through the sealing and mounting part 11 and the positioning part 12 and extends into the force application part 13. The axial guiding hole 14 has a guiding and positioning function. When the magnetic floating turnout locking pin gearbox sealing and mounting tooling is in use, the sealing tooling component 1 moves inward in the direction close to the gearbox housing 30, and the axial guiding hole 14 will move axially on the gearbox output shaft 20 sleeved on the gearbox output shaft 20, so that the periphery of the sealing body 10 is evenly aligned with the sealing groove on the locking pin gearbox, realizing precise positioning and installation.

[0047] The axial guiding hole 14 has a first inner hole 141 and a second inner hole 142. The first inner hole 141 penetrates through the sealing and mounting part 11 and extends into the positioning part 12. The second inner hole 142 is recessed inward from the bottom of the first inner hole 141 into the force application part 13. The inner diameter of the first inner hole 141 is larger than that of the second inner hole 142, so that a positioning step is formed between the first inner hole 141 and the second inner hole 142. The gearbox output shaft 20 first passes through the first inner hole 141 and is inserted into the second inner hole 142, so that the periphery of the sealing body 10 is evenly aligned with the sealing groove on the locking pin gearbox. Then the gearbox output shaft 20 extends into the second inner hole 142 and is accurately inserted into the first inner hole 141, so that the stepped surface on the gearbox output shaft 20 fits against the positioning step, realizing that the gearbox output shaft 20 is accurately located in the axial guiding hole 14 and realizing the precise positioning and installation of the sealing body 10.

[0048] In this embodiment, the sealing tooling component 1 also has an air vent hole 15. One end of the air vent hole 15 is communicated with the axial guiding hole 14, and the other end of the air vent hole 15 extends to the outer surface of the force application part 13 and is communicated with the outside. When the gearbox output shaft 20 is inserted into the axial guiding hole 14, the air in the axial guiding hole 14 will be discharged outward through the air vent hole 15; when the sealing tooling component 1 is moved outwards, the outside air will enter the axial guiding hole 14 through the air vent hole 15, which is convenient for the disassembly and separation between the gearbox output shaft 20 and the sealing tooling component 1.

[0049] In the magnetic levitation turnout lock pin gearbox sealing installation tooling of this embodiment, the sealing tooling component 1 is manufactured based on the installation position relationship of the sealing body 10 on the lock pin gearbox and the outer diameter size of the input / output shaft of the lock pin gearbox. The shape of the sealing tooling component 1 is a cylindrical shape with different inner and outer diameters. The outer diameter of the sealing installation part 11 and the outer diameter of the sealing loading position are determined according to the specification size of the sealing body 10. The axial guiding hole 14 should have a certain length, and its inner diameter can be appropriately matched with the shaft diameter and the extended length of the input / output shaft of the lock box to ensure that the sealing body 10 will not tilt or be uneven around during installation. Moreover, to ensure that the sealing body 10 can be tightly installed in place, a tapping surface 132 for gently tapping with a soft hammer and a gripping surface 131 for disassembling the tooling after the sealing is in place should be considered on the sealing tooling component 1.

[0050] Before using the magnetic levitation turnout lock pin gearbox sealing installation tooling of this embodiment, a thin layer of grease is first applied to the outer surface of the sealing guiding surface 111 of the sealing tooling component 1 and the inner wall surface of the axial guiding hole 14, so that after the sealing body 10 is installed in place, the sealing body 10 is easy to slip off from the sealing guiding surface 111, and the sealing tooling component 1 is easy to slide and remove from the output shaft 20 of the gearbox.

[0051] When using the magnetic levitation turnout lock pin gearbox sealing installation tooling, the sealing body 10 is installed on the sealing tooling component 1 along the sealing guiding surface 111, and the periphery of the sealing body 10 is closely attached to the installation surface 121. Then, the old sealing body 10 is removed from the sealing groove position of the lock pin gearbox. Premature removal of the old sealing body 10 will cause a large amount of lubricating oil 40 in the gearbox housing 30 to leak. The sealing tooling component 1 moves axially inward along the output shaft 20 of the gearbox to evenly align the periphery of the sealing body 10 with the sealing groove on the lock pin gearbox, and slowly presses the sealing body 10 into the sealing groove. The back of the sealing body 10 relies on the inner-mounted skeleton in the circumferential circle to closely cooperate with the sealing groove on the lock pin gearbox and stick firmly together. The lip part is in close fit with the surface of the output shaft 20 of the gearbox, blocking the lubricating oil 40 in the lock pin gearbox without leakage. Check the installation situation of the sealing body 10 again to ensure that the sealing body 10 is completely installed in place and whether there is any damage to the sealing lip position and the circumferential skeleton, and ensure the correct installation of the sealing body 10 without damage. Using this tooling is simple and easy, basically eliminating the possibility of damaging the sealing body 10 during manual installation and the problem of a large amount of leakage of lubricating oil 40 caused by the relatively long original installation process.

[0052] One side of the positioning portion 12 facing the sealing and mounting portion 11 is provided with a positioning groove 122, and the positioning groove 122 is located at the outer end of the positioning portion 12 away from the sealing and mounting portion 11. The positioning groove 122 has a positioning function. When the positioning portion 12 moves in the direction close to the gearbox housing 30, the gearbox housing 30 extends into the positioning groove 122 and closely abuts against the inner wall surface of the positioning groove 122, further ensuring that the sealing body 10 is correctly installed in place.

[0053] One end of the sealing and mounting portion 11 away from the positioning portion 12 is provided with an inclined sliding surface 112, and the inclined sliding surface 112 is smoothly transitioned with the sealing guiding surface 111. The inclined sliding surface 112 has a sliding guiding function. When the sealing body 10 is installed on the sealing tooling component 1, the sealing body 10 is first sleeved on the inclined sliding surface 112, and through the sliding guiding function of the inclined sliding surface 112, the sealing body 10 is smoothly sleeved on the sealing guiding surface 111 and abuts against the mounting surface 121, which is convenient for the sealing body 10 to be installed on the sealing tooling component 1. At the same time, after the sealing body 10 is pressed into the sealing groove, the inclined sliding surface 112 facilitates the sealing body 10 to slip off from the sealing and mounting portion 11.

[0054] The material of the sealing tooling component 1 is a light and soft material. Considering that the sealing tooling component 1 is convenient for use and carrying, a light and soft material is selected for the material to prevent scratching or bumping the gearbox output shaft 20 and the sealing body 10, etc., which may affect the sealing effect of the sealing body 10. Among them, the material of the sealing tooling component 1 can be a light aluminum alloy. According to the above application and material selection conditions, a light aluminum alloy is selected, and its weight and hardness can meet the application requirements.

[0055] Before the application of the magnetic levitation turnout lock pin gearbox sealing and mounting tooling in this embodiment, there were about a hundred similar sealing bodies 10 in the magnetic levitation turnout. During the period from 2005 to 2007, due to improper installation methods and other reasons, there were many gearbox oil leakage failures caused by the damage of the sealing body 10. The annual maintenance volume was about 20, and the replacement of the sealing body 10 occurred from time to time, making the maintenance personnel exhausted. After the application of the magnetic levitation turnout lock pin gearbox sealing and mounting tooling in this embodiment, the installation quality of the sealing body 10 has been greatly improved, and the damage to the sealing body 10 caused by installation is basically eliminated. Due to the improvement of the installation quality of the sealing body 10, the replacement and maintenance volume of the sealing body 10 is reduced to 1 - 2 per year. At the same time, the time for replacing the gearbox seal maintenance work is reduced from the original 6 hours to about 1 hour, greatly improving the work efficiency of the sealing and installation.

[0056] The magnetic levitation switch lock pin gearbox sealing installation tooling of this embodiment can not only be used for the magnetic levitation switch lock box gearbox, but also for the installation of seals of other types of gearboxes with the same outer diameter of the output / input shaft of the magnetic levitation switch lock box gearbox, similar sealing materials and the same installation method, and has certain popularization and application value. Even if there are differences in the size of the gearbox shaft, the inner diameter size and outer shape size of the tooling can be appropriately changed according to the differences in the gearbox shaft and the sealing specifications, so as to form a series of toolings. At the same time, it can also provide an idea for solving the seal assembly problem for the gearbox oil leakage problem with similar situations.

[0057] The above-disclosed are only the preferred embodiments of the present invention, and of course, the scope of the rights of the present invention cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A magnetic levitation turnout locking pin gearbox sealing installation tooling, characterized in that It includes a sealing tooling component, the sealing tooling component includes a sealing installation part, a positioning part and a force application part. The sealing installation part and the force application part are respectively connected to both sides of the positioning part, and the positioning part extends and protrudes radially outward from the outer peripheral surface of the sealing installation part along the sealing tooling component. There is a sealing guiding surface on the outer peripheral surface of the sealing installation part, and a sealing body is sleeved on the sealing guiding surface. On the side of the positioning part facing the sealing installation part, there is an installation surface, and the installation surface is exposed from the outer peripheral surface of the sealing installation part and is used to abut against the sealing body.

2. The magnetic levitation turnout lock pin gearbox sealing installation tooling according to claim 1, characterized in that, There is a gripping surface on the outer peripheral surface of the force application part, so that a force is applied on the gripping surface and is used to drive the sealing tooling component to move outward in a direction away from the sealing body.

3. The magnetic levitation turnout lock pin gearbox sealing installation tooling according to claim 1, characterized in that, On the side of the force application part facing away from the sealing installation part, there is a knocking surface, so that a knocking tool applies a force in a direction towards the sealing body on the knocking surface.

4. The magnetic levitation turnout lock pin gearbox sealing installation tooling according to claim 1, characterized in that, There is an axial guiding hole in the sealing tooling component. The axial guiding hole is recessed inward along the axis of the sealing tooling component from the side of the sealing installation part facing away from the force application part, and the axial guiding hole penetrates through the sealing installation part and the positioning part and extends into the force application part.

5. The magnetic levitation turnout lock pin gearbox sealing installation tooling according to claim 4, characterized in that, The axial guiding hole has a first inner hole and a second inner hole. The first inner hole penetrates through the sealing installation part and extends into the positioning part. The second inner hole is recessed inward from the bottom of the first inner hole to the force application part. The inner diameter of the first inner hole is larger than the inner diameter of the second inner hole, so that a positioning step is formed between the first inner hole and the second inner hole.

6. The magnetic levitation turnout lock pin gearbox sealing installation tooling according to claim 4, characterized in that, There is also a vent hole in the sealing tooling component. One end of the vent hole is communicated with the axial guiding hole, and the other end of the vent hole extends to the outer surface of the force application part and is communicated with the outside.

7. The magnetic levitation turnout lock pin gearbox sealing installation tooling according to claim 1, characterized in that On the side of the positioning part facing the sealing installation part, there is a positioning groove, and the positioning groove is located at the outer end of the positioning part far from the sealing installation part.

8. The magnetic levitation turnout lock pin gearbox sealing installation tooling according to claim 1, characterized in that One end of the sealing installation part far from the positioning part has an inclined guiding surface, and the inclined guiding surface is smoothly transitioned with the sealing guiding surface.

9. The magnetic levitation turnout lock pin gearbox sealing installation tooling according to claim 1, characterized in that The material of the sealing tooling component is a light and soft material.

10. The magnetic levitation turnout lock pin gearbox sealing installation tooling according to claim 9, characterized in that, The material of the sealing tooling component is a light aluminum alloy.

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