Static ring dismounting tool

Abstract

The present disclosure belongs to the technical field of overhauling, and particularly relates to a static ring dismounting tool. The present disclosure provides a static ring dismounting tool, the static ring is used to be installed in a sealed installation hole on a component, the dismounting tool comprises a first pressing member, a second pressing member, an adjusting and fixing mechanism, a positioning seat and a dismounting rod, the adjusting and fixing mechanism is configured to adjust the relative distance between the first pressing member and the second pressing member during installation until the first pressing member and the second pressing member are fixed after abutting against two opposite radial faces of the static ring respectively; the positioning seat is configured to be fixedly connected with a flange face of the sealed installation hole and is provided with a threaded through hole; the dismounting rod is threadedly connected with the positioning seat through the threaded through hole and moves along the axial direction under the action of external force to push the static ring to a preset installation position of the sealed installation hole through the first pressing member and the second pressing member. The static ring dismounting tool of the present disclosure can be adapted to static rings of different sizes and can stably push the static ring to be installed.

Description

Technical Field

[0001] This disclosure belongs to the field of maintenance technology, and specifically relates to a tool for disassembling and assembling stationary rings. Background Technology

[0002] The stationary ring is a key component in a mechanical seal, primarily mating with the rotating ring to form the sealing surface. Because the stationary ring is usually interference-fitted with the housing, and the sealing surface is typically made of a hard material with a high degree of surface finish, any scratches or deformation will lead to seal failure.

[0003] Existing methods for disassembling and assembling stationary rings using traditional tools such as screwdrivers are prone to uneven force, leading to stationary ring misalignment, jamming, or seal failure. Furthermore, existing stationary ring disassembly and assembly tools are not compatible with stationary rings of different sizes and require the preparation of various types of clamping parts. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a static ring disassembly and assembly tool.

[0005] This disclosure provides a tool for removing and installing a stationary ring, wherein the stationary ring is used to be installed in a sealing mounting hole on a component, and the tool for removing and installing the stationary ring includes:

[0006] First clamping element;

[0007] Second clamping element;

[0008] An adjustment and fixing mechanism is configured to adjust the relative distance between the first clamping member and the second clamping member in the installation mode until the first clamping member and the second clamping member respectively abut against the two opposite radial surfaces of the stationary ring and then fix the first clamping member and the second clamping member.

[0009] A positioning seat, which is configured to be fixedly connected to the flange face of a sealing mounting hole and has a threaded through hole;

[0010] The disassembly rod is configured to have external threads. In the installation mode, the disassembly rod is threadedly connected to the positioning seat through the threaded through hole and moves axially under the action of external force, so as to push the stationary ring to the preset installation position of the sealing mounting hole through the first clamping member and the second clamping member.

[0011] In one embodiment of this disclosure, the first clamping member and the second clamping member are arc-shaped plates adapted to the stationary ring.

[0012] In one embodiment of this disclosure, the adjusting and fixing mechanism includes a first connecting plate and a second connecting plate extending along the relative motion direction. The first connecting plate is disposed on the first clamping member and has a first mounting structure, and the second connecting plate is disposed on the second clamping member and has a second mounting structure.

[0013] The first connecting plate and the second connecting plate are configured to overlap each other, and when the first clamping member and the second clamping member move relative to each other to a preset position, fasteners are fixedly connected through the first mounting structure and the second mounting structure.

[0014] In one embodiment of this disclosure, both the first mounting structure and the second mounting structure are slots extending along the relative movement direction; or,

[0015] One of the first mounting structure and the second mounting structure is an elongated hole extending along the relative movement direction, and the other is a circular hole; or,

[0016] Both the first mounting structure and the second mounting structure are elongated holes extending along the relative motion direction.

[0017] In one embodiment of this disclosure, a torque elimination mechanism is provided on the first connecting plate or the second connecting plate. The torque elimination mechanism is configured to cooperate with the disassembly rod in the installation mode to eliminate the torque acting on the first connecting plate and the second connecting plate when the disassembly rod rotates.

[0018] In one embodiment of this disclosure, the torque relief mechanism includes:

[0019] A rotating bearing, wherein the outer ring of the rotating bearing is directly or indirectly fixed to the first connecting plate or the second connecting plate;

[0020] A clamping sleeve is disposed in the inner ring of the rotating bearing and has a central hole for inserting the disassembly rod, and a mating portion formed by the radially extending wall of the central hole. After the disassembly rod is inserted into the central hole, the end face of the disassembly rod abuts against the mating portion.

[0021] The disassembly rod and the center hole have a preset radial gap so that the disassembly rod can self-align after being subjected to force. The preset radial gap is 0-5mm.

[0022] In one embodiment of this disclosure, the rotary bearing is movably disposed on the first connecting plate or the second connecting plate, and the direction of movement of the rotary bearing is consistent with the relative direction of movement of the first connecting plate or the second connecting plate.

[0023] In one embodiment of this disclosure, both the first mounting structure and the second mounting structure are slots extending along the relative motion direction, the mounting sleeve is slidably disposed on the slot, and the outer ring of the rotating bearing is fixedly disposed with the mounting sleeve.

[0024] In one embodiment of this disclosure, the positioning seat includes:

[0025] An annular sleeve, wherein the annular sleeve is detachably disposed on the flange surface;

[0026] A connecting rod, which extends along the diameter of the annular sleeve and is fixedly disposed therein, and the threaded through hole is provided in the middle of the connecting rod.

[0027] In one embodiment of this disclosure, the stationary ring disassembly and assembly tool further includes:

[0028] A disassembly disc, configured to abut against the radial surface of the stationary ring away from the flange face in disassembly mode, and the center of the disassembly disc having a fixing threaded hole;

[0029] In disassembly mode, the disassembly rod is threadedly connected to the positioning seat through the threaded through hole, and moves axially under the action of external force until it connects with the fixed threaded hole of the disassembly disc, and then moves axially and pulls the disassembly disc, causing the stationary ring to disengage from the preset installation position.

[0030] One of the beneficial effects of this disclosure is that the stationary ring disassembly and assembly tool adjusts the relative distance between the first clamping member and the second clamping member through the adjustment and fixing mechanism, so that the first clamping member and the second clamping member can match the diameter of the stationary ring, thereby abutting against the radial surfaces of opposite sides of the stationary ring respectively. Then, the adjustment and fixing mechanism is controlled to fix the first clamping member and the second clamping member, thereby fixing the positioning seat to the flange face of the sealing mounting hole. Then, the threaded disassembly and assembly rod is rotated and passes through the threaded through hole in the middle of the positioning seat. Under the action of external force, it moves axially and pushes the first clamping member and the second clamping member to move, thereby pushing the stationary ring to the preset installation position of the sealing mounting hole.

[0031] Thus, the stationary ring disassembly and assembly tool disclosed herein can adjust the relative distance between the first clamping member and the second clamping member to accommodate stationary rings of different sizes. Through the threaded engagement between the positioning seat and the disassembly and assembly rod, the disassembly and assembly rod can stably push the first clamping member and the second clamping member to move axially downward under external force to install the stationary ring, thus avoiding the stationary ring from being skewed or stuck. Attached Figure Description

[0032] Embodiments of this disclosure are illustrated in conjunction with the accompanying drawings, which are included and form part of this specification, and together with their description serve to explain the principles of this disclosure.

[0033] Figure 1 This is a three-dimensional structural schematic diagram of the installation tool of the static ring disassembly and assembly tool provided in an embodiment of the present disclosure;

[0034] Figure 2 This is a three-dimensional structural diagram of the adjusting and fixing mechanism of the stationary ring disassembly and assembly tool provided in an embodiment of the present disclosure, which fixes the first clamping member and the second clamping member.

[0035] Figure 3 This is a three-dimensional structural diagram of the first clamping member and part of the adjusting and fixing mechanism of the static ring disassembly and assembly tool provided in an embodiment of the present disclosure;

[0036] Figure 4 yes Figure 3 A top-view structural diagram;

[0037] Figure 5 This is a three-dimensional structural diagram of the second clamping member and part of the adjustment and fixing mechanism of the stationary ring disassembly and assembly tool provided in an embodiment of the present disclosure;

[0038] Figure 6 yes Figure 5 A top-view structural diagram;

[0039] Figure 7 This is a three-dimensional structural diagram of the positioning seat of the stationary ring disassembly and assembly tool provided in an embodiment of the present disclosure;

[0040] Figure 8 This is a three-dimensional structural diagram of the disassembly and assembly disc of the stationary ring disassembly and assembly tool provided in an embodiment of the present disclosure;

[0041] Figure 9 This is a three-dimensional structural diagram of the disassembly tool of the stationary ring disassembly and assembly tool provided in an embodiment of the present disclosure.

[0042] Figures 1 to 9 The correspondence between the component names and the reference numerals in the figures is as follows:

[0043] 11 First clamping component, 12 Second clamping component;

[0044] 21 First connecting plate, 22 Second connecting plate, 23 Fastener, 24 Mounting sleeve, 241 Rotary bearing, 242 Clamping sleeve;

[0045] 30 Positioning seat, 31 Annular sleeve, 32 Connecting rod, 321 Threaded through hole;

[0046] 40 Disassembly disc, 41 Fixed threaded hole;

[0047] 50 disassembly / reassembly rod. Detailed Implementation

[0048] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present disclosure.

[0049] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use.

[0050] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0051] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0052] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0053] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0054] In this article, "first," "second," etc., are used only to distinguish one another, and not to indicate degree of importance, order, or prerequisite for each other.

[0055] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0056] The stationary ring is a key component in a mechanical seal, primarily mating with the rotating ring to form the sealing surface. Because the stationary ring is usually interference-fitted with the housing, and the sealing surface is typically made of a hard material with a high degree of surface finish, any scratches or deformation will lead to seal failure.

[0057] Existing methods for disassembling and assembling stationary rings using traditional tools such as screwdrivers are prone to uneven force, leading to stationary ring misalignment, jamming, or seal failure. Furthermore, existing stationary ring disassembly and assembly tools are not compatible with stationary rings of different sizes and require the preparation of various types of clamping parts.

[0058] To address this, this disclosure provides a stationary ring removal and installation tool. The stationary ring is used to install in a sealing mounting hole on a component. The tool includes a first clamping member, a second clamping member, an adjusting and fixing mechanism, a positioning seat, and a removal and installation rod. The adjusting and fixing mechanism is configured to adjust the relative distance between the first and second clamping members in the installation mode until the first and second clamping members abut against the two opposite radial surfaces of the stationary ring and are then fixed. The positioning seat is configured to be fixedly connected to the flange face of the sealing mounting hole and has a threaded through hole. The removal and installation rod has an external thread and, in the installation mode, is threadedly connected to the positioning seat through the threaded through hole and moves axially under external force to push the stationary ring to the preset installation position of the sealing mounting hole via the first and second clamping members.

[0059] The stationary ring disassembly and assembly tool disclosed herein adjusts the relative distance between the first clamping member and the second clamping member through an adjusting fixing mechanism, so that the first clamping member and the second clamping member can match the diameter of the stationary ring, thereby abutting against the radial surfaces of opposite sides of the stationary ring. Then, the adjusting fixing mechanism is controlled to fix the first clamping member and the second clamping member, thereby fixing the positioning seat to the flange face of the sealing mounting hole. Then, the threaded disassembly and assembly rod is rotated and passes through the threaded through hole in the middle of the positioning seat. Under the action of external force, it moves axially and pushes the first clamping member and the second clamping member to move, thereby pushing the stationary ring to the preset installation position of the sealing mounting hole.

[0060] Thus, the stationary ring disassembly and assembly tool disclosed herein can adjust the relative distance between the first clamping member and the second clamping member to accommodate stationary rings of different sizes. Through the threaded engagement between the positioning seat and the disassembly and assembly rod, the disassembly and assembly rod can stably push the first clamping member and the second clamping member to move axially downward under external force to install the stationary ring, thus avoiding the stationary ring from being skewed or stuck.

[0061] For ease of understanding, please refer to the following: Figures 1 to 9 The specific structure and working principle of the static ring disassembly and assembly tool provided in this disclosure will be described in detail with reference to the embodiments.

[0062] In one embodiment, this disclosure provides a stationary ring removal and installation tool. The stationary ring is used to install in a sealing mounting hole on a component. The stationary ring removal and installation tool includes a first clamping member 11, a second clamping member 12, an adjustment and fixing mechanism, a positioning seat 30, and a removal and installation rod 50. The adjustment and fixing mechanism is configured to adjust the relative distance between the first clamping member 11 and the second clamping member 12 in the installation mode until the first clamping member 11 and the second clamping member 12 abut against the two opposite radial surfaces of the stationary ring and are then fixed. The positioning seat 30 is configured to be fixedly connected to the flange face of the sealing mounting hole and has a threaded through hole 321. The removal and installation rod 50 is configured to have external threads. In the installation mode, it is threadedly connected to the positioning seat 30 through the threaded through hole 321 and moves axially under the action of external force to push the stationary ring to the preset installation position of the sealing mounting hole through the first clamping member 11 and the second clamping member 12.

[0063] In detail, the stationary ring of a mechanical seal is the core fixed component in a mechanical seal device. It is mostly an annular structure with an inner hole that is clearance-fitted to the shaft to avoid friction. The outer circle is assembled with the housing through interference fit, bolt fixing, or snap-fit ​​connection. Its installation quality directly affects the operational stability and sealing performance of the device. The stationary ring disassembly and assembly tool provided in this disclosure is for disassembling and assembling interference-fit stationary rings.

[0064] The stationary ring disassembly and assembly tool disclosed herein adjusts the relative distance between the first clamping member 11 and the second clamping member 12 through an adjusting fixing mechanism, so that the first clamping member 11 and the second clamping member 12 can match the diameter of the stationary ring, thereby abutting against the radial surfaces opposite to the two sides of the stationary ring, so that the stationary ring can be smoothly clamped without deflection. Then, the adjusting fixing mechanism is controlled to fix the first clamping member 11 and the second clamping member 12, thereby fixing the positioning seat 30 to the flange surface of the sealing mounting hole. Then, the threaded disassembly rod 50 is rotated and passes through the threaded through hole 321 in the middle of the positioning seat 30. Under the action of external force, it moves axially and pushes the first clamping member 11 and the second clamping member 12 to move, thereby pushing the stationary ring to the preset installation position of the sealing mounting hole.

[0065] The fit between the stationary ring and the sealing mounting hole usually has strict requirements for perpendicularity and coaxiality. The stationary ring disassembly and assembly tool disclosed herein, through the cooperation of the first clamping member 11, the second clamping member 12 and the disassembly and assembly rod 50, ensures that the stationary ring is installed smoothly along the axial direction, reduces the physical labor consumption and difficulty of manual operation, and avoids poor sealing surface fit due to tilting or offset during manual installation.

[0066] Thus, the stationary ring disassembly and assembly tool disclosed herein can adjust the relative distance between the first clamping member 11 and the second clamping member 12 to accommodate stationary rings of different sizes. Through the threaded engagement between the positioning seat 30 and the disassembly and assembly rod 50, the disassembly and assembly rod 50 can stably push the first clamping member 11 and the second clamping member 12 to move axially downward to install the stationary ring under external force, avoiding the stationary ring from being misaligned or stuck, thereby protecting the integrity of the sealing surface and reducing the risk of leakage caused by damage to the sealing surface.

[0067] See Figure 1 and Figure 2 In one embodiment of this disclosure, the first clamping member 11 and the second clamping member 12 are arc-shaped plates adapted to the stationary ring.

[0068] In detail, both the first clamping member 11 and the second clamping member 12 of this disclosure are arc-shaped plates. In the installation mode, the first clamping member 11 and the second clamping member 12 are arranged opposite to each other and abut against the stationary ring, so as to accurately match the end face of the stationary ring, so that it can be smoothly pushed along the axial direction, reducing the difficulty of operation, avoiding the stationary ring from slipping or tilting during installation, and ensuring that the axial force on the stationary ring is uniform.

[0069] See Figure 2 In one embodiment of this disclosure, the adjusting and fixing mechanism includes a first connecting plate 21 and a second connecting plate 22 extending along the relative movement direction. The first connecting plate 21 is disposed on the first clamping member 11 and has a first mounting structure, and the second connecting plate 22 is disposed on the second clamping member 12 and has a second mounting structure. The first connecting plate 21 and the second connecting plate 22 are configured to overlap each other, and when the first clamping member 11 and the second clamping member 12 move relative to each other to a preset position, a fastener 23 is fixedly connected through the first mounting structure and the second mounting structure.

[0070] In detail, a first connecting plate 21 is provided on the first clamping member 11 along the relative movement direction, and a second connecting plate 22 is provided on the second clamping member 12 along the relative movement direction. In the installation mode, the first connecting plate 21 and the second connecting plate 22 are overlapped with each other, so that the first connecting plate 21 and the second connecting plate 22 are overlapped. Then, according to the inner diameter of the stationary ring, the overlap length of the first connecting plate 21 and the second connecting plate 22 is adjusted, thereby adjusting the distance between the first clamping member 11 and the second clamping member 12. In this way, the first clamping member 11 and the second clamping member 12 can be adapted to stationary rings of different sizes and abut against the radial surface of the end of the stationary ring.

[0071] Meanwhile, a first mounting structure is provided on the first connecting plate 21, and a second mounting structure is provided on the second connecting plate 22. After the first clamping member 11 and the second clamping member 12 move relative to each other to a preset position, at least one fastener 23 is provided to lock the first connecting plate 21 and the second connecting plate 22 through the first mounting structure.

[0072] See Figure 3 and Figure 5 In one embodiment of this disclosure, the fastener 23 is a bolt and a nut. The operating bolt enters from one side of the stationary ring and passes through the first mounting structure and the second mounting structure. The nut is then screwed onto the bolt on the other side. In this way, it is not necessary to remove the first clamping member 11 and the second clamping member 12, which have been adjusted to the preset position, from the sealing mounting hole. This would cause a deviation in the relative distance between the first clamping member 11 and the second clamping member 12, making it impossible to match the diameter of the stationary ring. Furthermore, tightening the nut on the outside can prevent the first clamping member 11 and the second clamping member 12 from hindering the operator from rotating and tightening the nut, making the operation convenient. The first connecting plate 21 and the second connecting plate 22 are firmly fixed together.

[0073] Furthermore, washers are provided on the bolts to distribute the force over a larger area, making the connected areas of the first and second mounting structures more evenly stressed and enhancing the stability of the locking of the first connecting plate 21 and the second connecting plate 22.

[0074] See Figure 4 and Figure 6 In one embodiment of this disclosure, both the first mounting structure and the second mounting structure are slots extending along the relative motion direction; or, one of the first mounting structure and the second mounting structure is an elongated hole extending along the relative motion direction, and the other is a round hole; or, both the first mounting structure and the second mounting structure are elongated holes extending along the relative motion direction.

[0075] In detail, both the first mounting structure and the second mounting structure are slots extending along the relative movement direction. The first mounting structure passes through the free end of the first connecting plate 21, and the second mounting structure passes through the free end of the second connecting plate 22. In this way, the fastener 23 can be suspended on the first mounting structure and / or the second mounting structure. When the first connecting plate 21 and the second connecting plate 22 overlap and move along the relative movement direction, it is not necessary to remove the fastener 23, which is convenient for operators and avoids the loss of the fastener 23.

[0076] Alternatively, in one embodiment of this disclosure, one of the first mounting structure and the second mounting structure is an elongated hole extending along the relative movement direction, and the other is a round hole. In this way, when the first connecting plate 21 and the second connecting plate 22 overlap and move to a preset position along the relative movement direction, the fastener 23 passes through the round hole and then through the elongated hole, thereby locking and fixing the first connecting plate 21 and the second connecting plate 22. This configuration increases the rigidity of the first connecting plate 21 and the second connecting plate 22, preventing deformation of the first connecting plate 21 and the second connecting plate 22 after long-term use. Furthermore, the fastener 23, locked through the round hole, can increase the contact area and ensure a tight fit, thereby improving the locking strength and preventing the first connecting plate 21 and the second connecting plate 22 from shifting.

[0077] Alternatively, in one embodiment of this disclosure, both the first mounting structure and the second mounting structure are elongated holes extending along the relative movement direction. This increases the rigidity of the first connecting plate 21 and the second connecting plate 22. When the first connecting plate 21 and the second connecting plate 22 overlap and move to a preset position along the relative movement direction, the fastener 23 can pass through the two elongated holes at any position. This allows for selection of the equidistant positions after the first connecting plate 21 and the second connecting plate 22 overlap, thereby improving the connection strength and forming a more stable and rigid whole.

[0078] See Figure 2 and Figure 5 In one embodiment of this disclosure, a torque elimination mechanism is provided on the first connecting plate 21 or the second connecting plate 22. The torque elimination mechanism is configured to cooperate with the disassembly rod 50 in the installation mode to eliminate the torque acting on the first connecting plate 21 and the second connecting plate 22 when the disassembly rod 50 rotates.

[0079] In detail, a torque elimination mechanism is provided on the first connecting plate 21 or the second connecting plate 22. In the installation mode, after the disassembly rod 50 is threadedly connected to the threaded through hole 321 on the positioning seat 30, the operator rotates the disassembly rod 50 to make it move axially. The end of the disassembly rod 50 is connected to the torque elimination mechanism. In this way, the torque of the rotation of the disassembly rod 50 can be eliminated, leaving only the thrust of the disassembly rod 50 moving axially, which pushes the first connecting plate 21 and the second connecting plate 22, and then pushes the first clamping member 11 and the second clamping member 12 to move axially, making the power transmission smoother and realizing the horizontal installation of the stationary ring. This avoids the torque that causes the first clamping member 11 and the second clamping member 12 to be displaced, which would cause the stationary ring to be misaligned during installation.

[0080] See Figure 2 , Figure 5 and Figure 6 In one embodiment of this disclosure, the torque elimination mechanism includes a rotating bearing 241 and a clamping sleeve 242, wherein the outer ring of the rotating bearing 241 is directly or indirectly fixed to the first connecting plate 21 or the second connecting plate 22; the clamping sleeve 242 is disposed on the inner ring of the rotating bearing 241, and the end of the disassembly rod 50 abuts against the clamping sleeve 242.

[0081] In detail, the outer ring of the rotary bearing 241 is directly or indirectly fixed to the first connecting plate 21 or the second connecting plate 22 to prevent the rotary bearing 241 from shifting or loosening during operation. Specifically, the inner surface of the outer ring of the rotary bearing 241 is provided with grooves that contact the rolling elements and form a track for rolling friction. If the outer ring is not fixed, the shape and position of the grooves will change due to the movement of the outer ring, resulting in abnormal running trajectory of the rolling elements, generating vibration, noise, or even jamming. If the outer ring is not fixed, the rotary bearing 241 may shift under rotational conditions, causing local stress concentration, accelerating wear or fatigue fracture, failing to effectively transmit radial load, and failing to eliminate torque.

[0082] Furthermore, the inner ring of the rotating bearing 241 is interference-fitted with a clamping sleeve 242. The clamping sleeve 242 is annular and has a central hole for inserting the disassembly rod 50, and a mating portion formed by the radially extending wall of the central hole. The rear end face of the disassembly rod 50 inserted into the central hole abuts against the mating portion, so that the axial force of the disassembly rod 50 is transmitted to the first clamping member 11 and the second clamping member 12 through the mating portion. Then, the first clamping member 11 and the second clamping member 12 push the stationary ring to move axially. In this way, the disassembly rod 50 rotates... When in motion, the rotating bearing 241 can be rotated by the clamping sleeve 242, thereby eliminating the torque of the disassembly rod 50. Furthermore, the end face of the disassembly rod 50 abuts against the inner side of the mating part of the clamping sleeve 242. The axial thrust of the disassembly rod 50 acts on the clamping sleeve 242, pushing the first connecting plate 21 and the second connecting plate 22 to move, thereby pushing the first clamping member 11 and the second clamping member 12 to push the stationary ring to the preset installation position, preventing the disassembly rod 50 and the rotating bearing 241 from shifting axially, which would cause the torque elimination mechanism to fail.

[0083] Furthermore, the central hole of the disassembly rod 50 and the clamping sleeve 242 has a preset radial clearance so that the disassembly rod 50 can self-align after being subjected to force. The preset radial clearance is 0-5mm, which facilitates the insertion of the disassembly rod 50 into the central hole. Then, the disassembly rod 50 moves downward along the axis until its end face abuts against the inner side of the mating part. When the disassembly rod 50 rotates, the friction between it and the mating part drives the clamping sleeve 242 to rotate, which in turn drives the rotating bearing 241 to rotate to eliminate torque and retain the downward pressure of the disassembly rod 50.

[0084] In addition, in one embodiment, the disassembly rod 50 and the clamping sleeve 242 can be a transition fit, so that the end of the disassembly rod 50 is inserted into the center hole and the end face of the disassembly rod 50 abuts against the inner side of the mating part. When the disassembly rod 50 rotates, the clamping sleeve 242 drives the rotating bearing 241 to rotate to eliminate the torque and only retain the downward pressure.

[0085] See Figure 2 , Figure 4 and Figure 6In one embodiment of this disclosure, the rotating bearing 241 is movably disposed on the first connecting plate 21 or the second connecting plate 22, and the direction of movement of the rotating bearing 241 is consistent with the direction of relative movement of the first connecting plate 21 or the second connecting plate 22.

[0086] In detail, since the first connecting plate 21 and the second connecting plate 22 can move relative to each other to a preset position to adjust the relative distance between the first clamping member 11 and the second clamping member 12, thereby matching stationary rings of different diameters, a rotating bearing 241 is movably disposed on the first connecting plate 21 or the second connecting plate 22, wherein the direction of movement of the rotating bearing 241 is consistent with the direction of relative movement of the first connecting plate 21 or the second connecting plate 22. Thus, when the first clamping member 11 and the second clamping member 12 are pressed together by adjusting the fixing mechanism, the rotation of the rotating bearing 241 is consistent with the direction of relative movement of the first connecting plate 21 or the second connecting plate 22. After the relative distance between the components 12 is adjusted to match the diameter of the stationary ring, the position of the rotating bearing 241 can be adjusted so that the rotating bearing 241 is in the middle between the first clamping component 11 and the second clamping component 12. In this way, when the disassembly rod 50 is connected to the clamping sleeve 242 of the inner ring of the rotating bearing 241 and pushed axially, the thrust transmitted by the rotating bearing 241 to the first connecting plate 21 or the second connecting plate 22 acts in the middle, the first clamping component 11 and the second clamping component 12 are subjected to balanced forces, the axial movement is more stable, and the deviation during the installation of the stationary ring is avoided.

[0087] See Figure 4 and Figure 6 In one embodiment of this disclosure, both the first mounting structure and the second mounting structure are slots extending along the relative motion direction, the mounting sleeve 24 is slidably disposed on the slot, and the outer ring of the rotating bearing 241 is fixedly disposed with the mounting sleeve 24.

[0088] In detail, both the first and second mounting structures are slots extending along the relative motion direction. The first mounting structure passes through the free end of the first connecting plate 21, and the second mounting structure passes through the free end of the second connecting plate 22. The mounting sleeve 24 is slidably mounted on the slot. Thus, the mounting sleeve 24 can be mounted on either the first or the second mounting structure. When the first connecting plate 21 and the second connecting plate 22 overlap and move along the relative motion direction, it is not necessary to remove the mounting sleeve 24, which is convenient for operators and avoids wear on the sliding part and sliding groove of the mounting sleeve 24 after repeated disassembly and assembly. This would prevent the mounting sleeve 24 from being stably mounted in the adjusted middle position, causing the mounting sleeve 24 to slide radially when the disassembly rod 50 is pushed after connecting with the clamping sleeve 242.

[0089] Furthermore, by fixing the outer ring of the rotating bearing 241 to the mounting sleeve 24, the outer ring of the rotating bearing 241 can be firmly locked, limiting its axial displacement, preventing the outer ring from loosening, and ensuring the relative position stability of the rotating bearing 241. In addition, after the clamping sleeve 242 of the inner ring of the rotating bearing 241 abuts against the disassembly rod 50 to receive force, the mounting sleeve 24 can provide support for the rotating bearing 241, preventing the inner and outer rings of the rotating bearing 241 from shifting, while increasing the force-bearing area of ​​the first connecting plate 21 or the second connecting plate 22 to avoid stress concentration.

[0090] See Figure 4 and Figure 6 In one embodiment of this disclosure, a first connecting plate 21 is disposed in the middle of a first clamping member 11; and a second connecting plate 22 is disposed in the middle of a second clamping member 12.

[0091] With this configuration, the first clamping member 11 and the second clamping member 12 can form a symmetrical force-bearing structure, avoiding shaking or tilting caused by the shift of the center of gravity or uneven force, preventing poor sealing surface fit caused by skewness, ensuring that the axial force is evenly distributed along the circumferential direction of the stationary ring end face, and avoiding tilting or breakage of the stationary ring caused by unilateral force.

[0092] See Figure 7 In one embodiment of this disclosure, the positioning seat 30 includes an annular sleeve 31 and a connecting rod 32, wherein the annular sleeve 31 is detachably disposed on the flange surface; the connecting rod 32 extends along the diameter of the annular sleeve 31 and is fixedly disposed, and a threaded through hole 321 is provided in the middle of the connecting rod 32.

[0093] In detail, the annular sleeve 31 is detachably fixed to the flange surface by means of threaded engagement. A connecting rod 32 extends along the diameter of the annular sleeve 31, and a threaded through hole 321 is provided in the middle of the connecting rod 32. In this way, after the annular sleeve 31 is fixed to the flange surface, it can provide stable support for the disassembly rod 50, avoiding the difficulty of ensuring the stability of axial movement when the disassembly rod 50 is manually rotated. Furthermore, the threaded through hole 321 that is threaded to the disassembly rod 50 is located in the middle, ensuring that the disassembly rod 50 abuts against the middle position of the first connecting plate 21 or the second connecting plate 22, thereby pushing the first clamping member 11 and the second clamping member 12. During the installation of the stationary ring, it can be evenly and stably stressed without deviation.

[0094] In addition, the positioning seat 30 is equipped with an annular sleeve 31 connected to the flange face instead of a disc, so that the operator can observe in real time whether the disassembly rod 50 and the clamping sleeve 242 are aligned and connected when installing the stationary ring, and adjust the position of the installation sleeve 24 by adjusting the position of the disassembly rod 50, so as to ensure that the first clamping member 11 and the second clamping member 12 are pushed from the middle by the disassembly rod 50, thereby improving the accuracy of the stationary ring installation.

[0095] See Figure 8 and Figure 9 In one embodiment of this disclosure, the stationary ring disassembly and assembly tool further includes a disassembly disc 40, which is configured to abut against the radial surface of the stationary ring away from the flange surface in the disassembly mode, and the center of the disassembly disc 40 is provided with a fixing threaded hole 41; in the disassembly mode, the disassembly rod 50 is threadedly connected to the positioning seat 30 through the threaded through hole 321, and moves axially under the action of external force to connect with the fixing threaded hole 41 of the disassembly disc 40, thereby moving axially and pulling the disassembly disc 40 to disengage the stationary ring from the preset installation position.

[0096] In detail, in the disassembly mode, the present disclosure sets the disassembly plate to abut against the radial surface of the stationary ring away from the flange face. The external thread of the disassembly rod 50 is threadedly connected to the positioning seat 30 through the threaded through hole 321 and moves axially under external force, passing through the stationary ring until it connects with the fixing threaded hole 41 of the disassembly plate 40. Then, the disassembly rod 50 is rotated in the opposite direction, so that the disassembly rod 50 moves axially under the action of the positioning seat 30 and pulls the disassembly plate 40, thereby lifting the stationary ring and removing it from the preset installation position.

[0097] The disassembly disc 40 can be connected to the disassembly rod 50 by welding a nut through a central fixed threaded hole 41; or, the disassembly disc 40 can be centrally located such that a nut is rotated to install the disassembly rod 50 before it passes through the through hole, and then another nut is rotated to install it after it passes through the through hole. The two nuts move relative to each other along the disassembly rod 50 to clamp the disassembly disc 40, thereby enhancing the firmness of the connection between the disassembly disc 40 and the disassembly rod 50.

[0098] The working principle of this static ring disassembly and assembly tool will be further explained next using an application scenario of a static ring disassembly and assembly tool.

[0099] First, during installation, the first connecting plate 21 and the second connecting plate 22 are overlapped, and the relative distance between the first clamping member 11 and the second clamping member 12 is adjusted according to the diameter of the stationary ring. After the arc-shaped first clamping member 11 and the second clamping member 12 abut against the two opposing radial surfaces of the stationary ring, the fastener 23 passes through the slots on the first connecting plate 21 and the second connecting plate 22, locking the first connecting plate 21 and the second connecting plate 22. Then, the operator adjusts the mounting sleeve 24, which is equipped with the rotating bearing 241, to the middle position. After that, the positioning seat 30 is fixedly connected to the flange face of the sealing mounting hole, and the disassembly rod is held. 50 is screwed into the threaded through hole 321 in the middle of the connecting rod 32 of the positioning seat 30. Continue to rotate so that the disassembly rod 50 is close to the clamping sleeve 242 on the inner ring of the rotating bearing 241. Adjust the mounting sleeve 24 again so that the clamping sleeve 242 is aligned with the end of the disassembly rod 50, so that the disassembly rod 50 abuts against the clamping sleeve 242. Then, continue to apply force to rotate the disassembly rod 50. The torque of the rotation of the disassembly rod 50 is eliminated by the rotating bearing 241, leaving only the axial thrust, thereby pushing the first connecting plate 21 and the second connecting plate 22, as well as the first clamping member 11 and the second clamping member 12, to move axially, and finally press the stationary ring to the preset installation position.

[0100] In disassembly mode, the operator controls the disassembly plate to abut against the radial surface of the stationary ring away from the flange face, fixing the positioning seat 30 to the flange face of the sealing mounting hole. The operator holds the disassembly rod 50 and screws it into the threaded through hole 321 in the middle of the connecting rod 32 of the positioning seat 30. The operator continues to rotate the disassembly rod 50 to move axially, passing through the stationary ring until it connects with the fixing threaded hole 41 of the disassembly plate 40. After that, the operator rotates the disassembly rod 50 in the opposite direction, so that the disassembly rod 50 pulls the disassembly plate 40 axially under the support of the positioning seat 30, thereby lifting the stationary ring and removing it from the preset installation position.

[0101] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of this disclosure is defined by the appended claims.

Claims

1. A tool for removing and installing a stationary ring, wherein the stationary ring is used to install itself in a sealing mounting hole on a component, characterized in that... The stationary ring disassembly and assembly tool includes: First clamping element (11); Second clamping element (12); Adjusting fixing mechanism, which is configured to adjust the relative distance between the first clamping member (11) and the second clamping member (12) in the installation mode until the first clamping member (11) and the second clamping member (12) respectively abut against the two opposite radial surfaces of the stationary ring and then fix the first clamping member (11) and the second clamping member (12). The positioning seat (30) is configured to be fixedly connected to the flange face of the sealing mounting hole and has a threaded through hole (321). The disassembly rod (50) is constructed with external threads. In the installation mode, the disassembly rod (50) is threadedly connected to the positioning seat (30) through the threaded through hole (321) and moves axially under the action of external force to push the stationary ring to the preset installation position of the sealing mounting hole through the first clamping member (11) and the second clamping member (12).

2. The stationary ring disassembly and assembly tool according to claim 1, characterized in that, The first clamping member (11) and the second clamping member (12) are arc-shaped plates adapted to the stationary ring.

3. The stationary ring disassembly and assembly tool according to claim 1 or 2, characterized in that, The adjustment and fixing mechanism includes a first connecting plate (21) and a second connecting plate (22) extending along the relative motion direction. The first connecting plate (21) is disposed on the first clamping member (11) and has a first mounting structure. The second connecting plate (22) is disposed on the second clamping member (12) and has a second mounting structure. The first connecting plate (21) and the second connecting plate (22) are configured to overlap each other, and when the first clamping member (11) and the second clamping member (12) move relative to each other to a preset position, a fastener (23) is fixedly connected through the first mounting structure and the second mounting structure.

4. The stationary ring disassembly and assembly tool according to claim 3, characterized in that, Both the first mounting structure and the second mounting structure are slots extending along the relative movement direction; or, One of the first mounting structure and the second mounting structure is an elongated hole extending along the relative movement direction, and the other is a circular hole; or, Both the first mounting structure and the second mounting structure are elongated holes extending along the relative motion direction.

5. The stationary ring disassembly and assembly tool according to claim 3, characterized in that, A torque elimination mechanism is provided on the first connecting plate (21) or the second connecting plate (22). The torque elimination mechanism is configured to cooperate with the disassembly rod (50) in the installation mode to eliminate the torque acting on the first connecting plate (21) and the second connecting plate (22) when the disassembly rod (50) rotates.

6. The stationary ring disassembly and assembly tool according to claim 5, characterized in that, The torque relief mechanism includes: Rotary bearing (241), the outer ring of which is directly or indirectly fixed to the first connecting plate (21) or the second connecting plate (22); A clamping sleeve (242) is disposed in the inner ring of the rotating bearing (241) and has a central hole for inserting the disassembly rod (50) and a mating part formed by the radial extension of the hole wall of the central hole. After the disassembly rod (50) is inserted into the central hole, the end face of the disassembly rod (50) abuts against the mating part. The disassembly rod (50) and the center hole have a preset radial gap so that the disassembly rod (50) can self-align after being subjected to force. The preset radial gap is 0-5mm.

7. The stationary ring disassembly and assembly tool according to claim 6, characterized in that, The rotating bearing (241) is movably disposed on the first connecting plate (21) or the second connecting plate (22), and the direction of movement of the rotating bearing (241) is consistent with the direction of relative movement of the first connecting plate (21) or the second connecting plate (22).

8. The stationary ring disassembly and assembly tool according to claim 6, characterized in that, Both the first mounting structure and the second mounting structure are slots extending along the relative motion direction. The mounting sleeve (24) is slidably disposed on the slot, and the outer ring of the rotating bearing (241) is fixedly disposed with the mounting sleeve (24).

9. The stationary ring disassembly and assembly tool according to claim 1, characterized in that, The positioning seat (30) includes: An annular sleeve (31) is detachably disposed on the flange surface; The connecting rod (32) extends along the diameter of the annular sleeve (31) and is fixedly installed, and the threaded through hole (321) is provided in the middle of the connecting rod (32).

10. The stationary ring disassembly and assembly tool according to claim 1, characterized in that, The stationary ring disassembly and assembly tool also includes: The disassembly disc (40) is configured to abut against the radial surface of the stationary ring away from the flange face in the disassembly mode, and the center of the disassembly disc (40) is provided with a fixing threaded hole (41). In disassembly mode, the disassembly rod (50) is threadedly connected to the positioning seat (30) through the threaded through hole (321), and moves axially under the action of external force to connect with the fixed threaded hole (41) of the disassembly disc (40), and then moves axially and pulls the disassembly disc (40) to make the stationary ring disengage from the preset installation position.

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