Clip mounting tool and mounting method

Abstract

The application discloses a clamp spring installation tool and an installation method, and relates to the technical field of low-pressure turbine shafts, and aims to solve the problem of inconvenient installation of a clamp spring on a bolt used when connecting a low-pressure turbine shaft and a supporting conical wall. The clamp spring installation tool is used for installing a clamp spring on a bolt used when connecting a low-pressure turbine shaft and a supporting conical wall, and comprises a clamp spring rotating element which is movably connected with the bolt, wherein one end of the clamp spring rotating element extends outwardly to form a boss which is inserted into an open slot on the clamp spring, and the clamp spring rotating element is rotated to drive the clamp spring to rotate on the bolt so as to move the clamp spring to a predetermined position on the bolt. When the clamp spring is installed on the bolt used when connecting the low-pressure turbine shaft and the supporting conical wall, one-handed operation of an operator can be realized, and the clamp spring rotating element can improve the installation efficiency of the clamp spring, thereby solving the problem of inconvenient installation of the clamp spring on the bolt when connecting the low-pressure turbine shaft and the supporting conical wall.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of clamp spring installation tools and installation method. BACKGROUND

[0002] The low pressure turbine shaft and support cone wall of aero-engine can be connected by multiple pairs of bolts and nuts, to prevent the bolt from falling off when the operator installs the nut, usually a clamp spring is installed on the bolt to fix the bolt. The operator will fix the head of the bolt with one hand during the process of installing the clamp spring, and the other hand will move the notch on the clamp spring to make the clamp spring rotate on the bolt until it is clamped into the predetermined position on the bolt. Because there is no suitable installation tool, the installation process of the operator is not only inefficient but also requires the operator to operate with both hands. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the inconvenience of installing a clamp spring on a bolt when connecting a low pressure turbine shaft and a support cone wall in the prior art, and to provide a clamp spring installation tool and installation method.

[0004] The present application solves the above technical problems by the following technical solutions:

[0005] A clamp spring installation tool for installing a clamp spring on a bolt used when connecting a low pressure turbine shaft and a support cone wall, characterized in that the clamp spring installation tool comprises a clamp spring rotating member, the clamp spring rotating member is movably connected with the bolt, one end of the clamp spring rotating member towards the clamp spring has a protrusion extending outward, the protrusion is inserted into an open slot on the clamp spring, and the rotation of the clamp spring rotating member will drive the clamp spring to rotate on the bolt to make the clamp spring move to a predetermined position on the bolt.

[0006] In this scheme, compared with directly rotating the clamp spring with hands, using the clamp spring rotating member for installation can make the clamp spring rotate faster on the bolt, which is beneficial to improve the installation efficiency of the clamp spring and solve the problem of inconvenience of installing the clamp spring on the bolt when connecting the low pressure turbine shaft and the support cone wall.

[0007] Preferably, a first through hole is provided on the clamp spring rotating member, the bolt passes through the first through hole, so that the clamp spring rotating member is sleeved on the bolt, and the clamp spring rotating member rotates on the bolt around the axis of the bolt to drive the clamp spring to rotate.

[0008] Preferably, the protrusion extends outward along the axial direction of the bolt.

[0009] In the scheme, the structure is adopted, the operator drives the clamping spring to rotate by rotating the clamping spring rotating element, compared with directly using hand to drive the clamping spring rotating element, the installation efficiency is higher.

[0010] Preferably, the clamping spring rotating element comprises a rotating cylinder, one end of the rotating cylinder is connected with the boss, the rotating cylinder is sleeved on the bolt through the first through hole, and the inner side of the first through hole is provided with a threaded portion.

[0011] In the scheme, the structure is adopted, when the rotating cylinder rotates on the bolt, the shaking of the rotating cylinder on the bolt is reduced.

[0012] Preferably, the inner side of the boss is provided with a threaded portion.

[0013] In the scheme, the structure is adopted, when the boss rotates along the bolt, the movement of the boss is more stable.

[0014] Preferably, the clamping spring rotating element is further provided with an operating body away from one end of the clamping spring, the operating body is provided with a second through hole, and when the clamping spring rotating element is sleeved on the bolt, the bolt passes out of the clamping spring rotating element from the second through hole.

[0015] In the scheme, the structure is adopted, the clamping spring rotating element is suitable for bolts with various lengths, and the diameter of the operating body is greater than the diameter of the rotating cylinder, so that the operator can rotate the clamping spring rotating element through the operating body.

[0016] Preferably, the width of the boss is less than the width of the open slot.

[0017] In the scheme, the structure is adopted, so that the boss is conveniently inserted into the open slot on the clamping spring.

[0018] Preferably, the clamping spring installation tool further comprises a bolt fixing element, one end of the bolt fixing element is connected to the head of the bolt and is used for fixing the bolt, and the other end of the bolt fixing element is detachably connected to the supporting conical wall.

[0019] In the scheme, the structure is adopted, the bolt fixing element makes the bolt unable to move axially, and ensures that the end of the bolt always extends out of the supporting conical wall when the clamping spring is installed on the bolt.

[0020] Preferably, the bolt fixing element comprises a pressing ring and a pressing element, one end of the pressing ring is connected with the head of the bolt, the other end of the pressing ring is connected with the pressing element, and the end of the pressing element away from the bolt is connected with the supporting conical wall.

[0021] In the scheme, the above structure is adopted, when installing the circlip on the bolt, the pressing ring and the pressing part can enable the operator to operate with one hand.

[0022] The application discloses a circlip installation method, and belongs to the technical field of the installation of the low-pressure turbine shaft and the support cone wall.

[0023] S2, the tail portions of a plurality of bolts are directed towards the workbench and correspondingly inserted into the installation holes on the support cone wall; S3, the head portions of the bolts are abutted against the support cone wall; S4, the support cone wall is turned over so that the tail portions of the bolts are away from the workbench; S5, the circlip is placed on the tail portions of the bolts, and the boss is inserted into the open slot; S6, the circlip rotating part is rotated to drive the circlip to rotate on the bolts until the circlip moves to a predetermined position on the bolts; and S7, the above steps are repeated to install the circlip on all the bolts.

[0024] Preferably, the step S3 specifically comprises: abutting one end of the pressing ring against the head portion of the bolt, and connecting the pressing part to the support cone wall and abutting the other end of the pressing ring.

[0025] In the scheme, the above installation package method can enable the operator to operate with one hand when installing the circlip on the bolt, and the circlip rotating part can improve the installation efficiency of the circlip, and is favorable for solving the problem that the circlip is inconvenient to install on the bolt when the low-pressure turbine shaft and the support cone wall are connected.

[0026] On the basis of conforming to the common sense in the art, the above preferred conditions can be combined at will, that is, the preferred examples of the application are obtained.

[0027] The positive progress effect of the application is that:

[0028] When the low-pressure turbine shaft and the support cone wall are connected, the operator uses the circlip rotating part and the bolt fixing part to realize one-handed operation when installing the circlip on the bolt, and the circlip rotating part can improve the installation efficiency of the circlip, and is favorable for solving the problem that the circlip is inconvenient to install on the bolt when the low-pressure turbine shaft and the support cone wall are connected. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a connection diagram of the low-pressure turbine shaft and the support cone wall of the embodiment of the application.

[0030] Figure 2 It is a structure diagram of the circlip rotating part and the circlip of the embodiment of the application.

[0031] Figure 3 It is an operation diagram of the circlip rotating part of the embodiment of the application.

[0032] Figure 4 The figure is a cross section of the clamp spring screwing member, clamp spring and bolt connection of the embodiment of the present application.

[0033] Figure 5 The figure is a connection diagram of the clamp spring installation tool of the embodiment of the present application.

[0034] Figure 6 The figure is a step diagram of the clamp spring installation method of the embodiment of the present application.

[0035] Explanation of reference signs:

[0036] Low pressure turbine shaft 1

[0037] Supporting cone wall 2

[0038] Mounting hole 21

[0039] Clamp spring screwing member 3

[0040] Screwing cylinder 31

[0041] First through hole 311

[0042] Boss 32

[0043] Operating body 33

[0044] Second through hole 331

[0045] Bolt fixing member 4

[0046] Pressing ring 41

[0047] Pressing member 42

[0048] Clamp spring 5

[0049] Open slot 51

[0050] Bolt 6

[0051] Nut 7 DETAILED DESCRIPTION

[0052] The present application will be described more clearly and completely by way of examples and in conjunction with the drawings, but the present application is not limited in the scope of the examples.

[0053] The embodiment of the present application provides a clamp spring installation tool, such as Figures 1-5As shown, the clamp spring installation tool is used to install the clamp spring 5 on the bolt 6 used when connecting the low-pressure turbine shaft 1 and the support cone wall 2, and the clamp spring installation tool comprises: a clamp spring rotating element 3, the clamp spring rotating element 3 is movably connected with the bolt 6, and one end of the clamp spring rotating element 3 towards the clamp spring 5 has an outwardly extending boss 32 which is inserted into the open slot 51 on the clamp spring 5, and the rotation of the clamp spring rotating element 3 will drive the clamp spring 5 to rotate on the bolt 6, so that the clamp spring 5 moves to a predetermined position on the bolt 6.

[0054] In the scheme, the low-pressure turbine shaft 1 and the support cone wall 2 are mutually adhered by using the above structure, the bolt 6 is inserted into the mounting hole 21, the clamp spring 5 is sleeved on the tail of the bolt 6, and the clamp spring rotating element 3 is also sleeved on the bolt 6 along the axis of the bolt 6, the boss 32 is extended from one end of the clamp spring rotating element 3 towards the clamp spring 5, the operator inserts the boss 32 on the clamp spring rotating element 3 into the open slot 51 on the clamp spring 5, and the clamp spring 5 is driven to rotate on the bolt 6 along the threads on the bolt 6 to a predetermined position on the bolt 6 by rotating the clamp spring rotating element 3, so that compared with directly rotating the clamp spring 5 by hand, the clamp spring 5 can be rotated on the bolt 6 faster by using the clamp spring rotating element 3, which is beneficial to improve the installation efficiency of the clamp spring 5 and to solve the problem of inconvenient installation of the clamp spring 5 on the bolt 6 when connecting the low-pressure turbine shaft 1 and the support cone wall 2.

[0055] As a preferred embodiment, as shown in the drawings, Figures 1-5 As shown, the clamp spring rotating element 3 is provided with a first through hole 311, the bolt 6 passes through the first through hole 311 so that the clamp spring rotating element 3 is sleeved on the bolt 6, the clamp spring rotating element 3 rotates on the bolt 6 around the axis of the bolt 6 to drive the clamp spring 5 to rotate, and the boss 32 extends outwardly along the axial direction of the bolt 6.

[0056] The first through hole 311 is arranged on the clamp spring rotating element 3, the bolt 6 is inserted into the first through hole 311 so that the clamp spring rotating element 3 is sleeved on the bolt 6 along the axis of the bolt 6, the boss 32 is arranged on one end of the clamp spring rotating element 3 towards the clamp spring 5, the boss 32 is inserted into the open slot 51 on the clamp spring 5 along the direction parallel to the axis of the bolt 6 on the outer surface of the bolt 6, the clamp spring rotating element 3 rotates on the bolt 6 and drives the clamp spring 5 to rotate on the bolt 6 through the boss 32 extended from the end thereof, and the operator drives the clamp spring 5 to rotate by rotating the clamp spring rotating element 3, which is more efficient than directly prying the open slot 51 of the clamp spring 5 by hand.

[0057] As a preferred embodiment, as shown in the drawings, Figures 1-5 As shown, the clamp spring rotating element 3 comprises a rotating cylinder 31, one end of the rotating cylinder 31 is connected with the boss 32, the rotating cylinder 31 is sleeved on the bolt 6 through the first through hole 311, and the inside of the first through hole 311 is provided with a threaded portion.

[0058] The clamping spring screwing member 3 comprises a screwing cylinder 31 and a boss 32, the boss 32 is fixedly connected to the side of the screwing cylinder 31 facing the clamping spring 5, the inner side of the screwing cylinder 31 is a first through hole 311, the clamping spring screwing member 3 is sleeved on the bolt 6 through the first through hole 311 on the screwing cylinder 31, a threaded part is arranged on the inner side of the first through hole 311, and the threaded part is in threaded connection with the thread on the outer side of the bolt 6, so that the screwing cylinder 31 is reduced when rotating on the bolt 6.

[0059] In other embodiments, as shown in Figures 1-5 the inner side of the boss 32 is provided with a threaded part. The threaded part is in threaded connection with the thread on the bolt 6, so that the movement of the boss 32 when rotating along the bolt 6 is more stable.

[0060] As a preferred embodiment, as shown in Figures 1-5 the end of the clamping spring screwing member 3 away from the clamping spring 5 is also provided with an operating body 33, the operating body 33 is provided with a second through hole 331, and when the clamping spring screwing member 3 is sleeved on the bolt 6, the bolt 6 passes out of the clamping spring screwing member 3 from the second through hole 331.

[0061] The operating body 33 is fixedly connected to the end of the screwing cylinder 31 away from the boss 32, the inner side of the operating body 33 is provided with a second through hole 331, and the second through hole 331 is in communication with the first through hole 311 on the screwing cylinder 31, so that when the clamping spring screwing member 3 is sleeved on the bolt 6, the end of the bolt 6 can pass out of the operating body 33 from the second through hole 331, so that the clamping spring screwing member 3 is suitable for bolts 6 of various lengths, and the diameter of the operating body 33 is greater than the diameter of the screwing cylinder 31, so as to facilitate the rotation of the clamping spring screwing member 3 by the operating personnel through the operating body 33.

[0062] Meanwhile, the width of the boss 32 is smaller than the width of the open slot 51, and the width of the boss 32 is 0.005-0.1mm smaller than the width of the open slot 51, so that the boss 32 is conveniently inserted into the open slot 51 on the clamping spring 5.

[0063] As a preferred embodiment, as shown in Figures 1-5 the clamping spring installation tool further comprises a bolt 6 fixing member 4, one end of the bolt 6 fixing member 4 is connected to the head of the bolt 6 and is used for fixing the bolt 6, and the other end of the bolt 6 fixing member 4 is detachably connected to the supporting conical wall 2.

[0064] In the scheme, the clamping spring installation tool with the above structure further comprises a bolt 6 fixing piece 4 installed on one side of the support conical wall 2, one end of the bolt 6 fixing piece 4 abuts against the head of the bolt 6 along the axial direction of the bolt 6, and the other end of the bolt 6 fixing piece 4 is threadedly connected with the support conical wall 2, so that the bolt 6 fixing piece 4 prevents the bolt 6 from moving axially, thereby ensuring that the end of the bolt 6 always protrudes from the support conical wall 2 when the clamping spring 5 is installed on the bolt 6.

[0065] The bolt 6 fixing piece 4 comprises a pressing ring 41 and a pressing piece 42, one end of the pressing ring 41 is connected with the head of the bolt 6, the other end of the pressing ring 41 is connected with the pressing piece 42, and the end of the pressing piece 42 away from the bolt 6 is connected with the support conical wall 2.

[0066] The bolt 6 fixing piece 4 comprises the pressing ring 41 and the pressing piece 42, a plurality of bolt 6 installation holes 21 are arranged on the abutting surface of the support conical wall 2 and the low-pressure turbine shaft 1, the pressing ring 41 can simultaneously abut and fix the bolts 6 in the plurality of installation holes 21, the other end of the pressing ring 41 abuts against the pressing piece 42, the pressing piece 42 is threadedly connected with the support conical wall 2, and the pressing ring 41 can move along the axial direction of the bolt 6 by rotating the pressing piece 42. When the clamping spring 5 is installed on the bolt 6, the pressing ring 41 and the pressing piece 42 can enable the operator to operate with one hand.

[0067] The embodiment of the present application provides a clamping spring 5 installation method, as shown in the figure, the clamping spring installation method adopts the above-mentioned clamping spring 5 installation tool, and the clamping spring installation method comprises the following steps: Figures 1-6 S1, placing the support conical wall 2 on a workbench; S2, placing the tail of the bolt 6 towards the workbench and corresponding into the installation hole 21 on the support conical wall 2; S3, abutting the head of the bolt 6 against the support conical wall 2; S4, turning over the support conical wall 2 so that the tail of the bolt 6 is away from the workbench; S5, placing the clamping spring 5 on the tail of the bolt 6 and inserting the boss 32 into the open slot 51; S6, rotating the clamping spring rotating piece 3 to drive the clamping spring 5 to rotate on the bolt 6 until the clamping spring 5 moves to a predetermined position on the bolt 6; S7, repeating the above steps to install the clamping spring 5 on all the bolts 6. Meanwhile, step S3 specifically comprises: abutting one end of the pressing ring 41 against the head of the bolt 6, and connecting the pressing piece 42 to the support conical wall 2 and abutting against the other end of the pressing ring 41.

[0068] In the scheme, the opening of the support cone wall 2 is upward and placed on the workbench by using the above installation package method, a plurality of bolts 6 are inserted into the installation holes 21 on the support cone wall 2 in correspondence, the compression ring 41 and the compression part 42 are sequentially placed into the opening of the support cone wall 2, one end of the compression ring 41 abuts against the head of the bolt 6, the other end of the compression ring 41 abuts against the compression part 42, the compression part 42 is threadedly connected with the support cone wall 2, then the support cone wall 2 is turned over so that the tail of the bolt 6 is away from the workbench, the circlip 5 is installed on the tail of the bolt 6, and the circlip driving part 3 is sleeved on the bolt 6 so that the boss 32 is inserted into the opening groove 51 on the point of the circlip 5, the operator rotates the circlip driving part 3 to drive the circlip 5 to rotate on the bolt 6 until the circlip 5 moves to the predetermined position on the bolt 6, and the above steps are repeated to install the circlip 5 on the other bolts 6. Such an installation method can enable the operator to perform single-handed operation when installing the circlip 5 on the bolt 6, and the use of the circlip driving part 3 can improve the installation efficiency of the circlip 5, which is conducive to solving the problem of inconvenient installation of the circlip 5 on the bolt 6 when the low-pressure turbine shaft 1 and the support cone wall 2 are connected.

[0069] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. A clamp spring installation tool for installing a clamp spring on a bolt used in connecting a low pressure turbine shaft and a support cone wall, characterized by, The clamp spring installation tool comprises: a clamp spring rotating member movably connected with the bolt, the clamp spring rotating member having a protrusion extending outwardly from one end thereof towards the clamp spring, the protrusion being inserted into an opening slot on the clamp spring, the clamp spring rotating member being rotated to rotate the clamp spring on the bolt and move the clamp spring to a predetermined position on the bolt; the clamp spring rotating member being provided with a first through hole, the bolt being inserted through the first through hole so that the clamp spring rotating member is sleeved on the bolt, the clamp spring rotating member rotating around the axis of the bolt to rotate the clamp spring.

2. The clip installation tool of claim 1, wherein The protrusion extends outwardly along the axial direction of the bolt.

3. The clip installation tool of claim 2, wherein, The clamp spring rotating member comprises a rotating cylinder, one end of the rotating cylinder being connected with the protrusion, the rotating cylinder being sleeved on the bolt through the first through hole, the inner side of the first through hole being provided with a threaded portion.

4. The clip installation tool of claim 2, wherein The inner side of the protrusion is provided with a threaded portion.

5. The clip installing tool according to claim 3 or 4, wherein The clamp spring rotating member is further provided with an operating body at an end thereof away from the clamp spring, the operating body being provided with a second through hole, the bolt being inserted out of the clamp spring rotating member from the second through hole when the clamp spring rotating member is sleeved on the bolt.

6. The clip installation tool of claim 1, wherein, The width of the protrusion is smaller than the width of the opening slot.

7. The clip installation tool of claim 1, wherein, The clamp spring installation tool further comprises a bolt fixing member, one end of the bolt fixing member being connected with the head of the bolt and being used for fixing the bolt, the other end of the bolt fixing member being detachably connected with the support conical wall.

8. The clip installation tool of claim 7, wherein, The bolt fixing member comprises a pressing ring and a pressing member, one end of the pressing ring being connected with the head of the bolt, the other end of the pressing ring being connected with the pressing member, one end of the pressing member away from the bolt being connected with the support conical wall.

9. A method of installing a circlip, characterized by, The clamp spring installation method comprises the clamp spring installation tool according to any one of claims 1-8, the clamp spring installation method comprising: S1, placing the support conical wall on a workbench; S2, inserting the tail of each bolt into the mounting hole on the support conical wall; S3, abutting the head of the bolt against the support conical wall; S4, turning over the support conical wall so that the tail of the bolt is away from the workbench; S5, placing the clamp spring on the tail of the bolt and inserting the protrusion into the opening slot; S6, rotating the clamp spring rotating member to rotate the clamp spring on the bolt until the clamp spring is moved to a predetermined position on the bolt; S7, repeating the above steps to install the clamp spring on all the bolts.

10. The method of installing a clip spring of claim 9, wherein, The step S3 specifically comprises: abutting one end of the pressing ring against the head of the bolt and connecting the pressing member with the support conical wall and abutting the other end of the pressing ring against the pressing member.

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