Special tool for breaking and taking out filter element of hydraulic servo-motor of steam turbine

Abstract

The invention discloses a special tool for breaking and taking out a filter element of a hydraulic servo-motor of a steam turbine, which comprises a clamping component, a supporting component and an adjusting component arranged on the supporting component, the supporting assembly comprises a first threaded rod, a limiting nut arranged on the lower side of the outer wall of the first threaded rod, and a moving nut arranged in the middle of the outer wall of the first threaded rod. According to the special tool for taking out the broken filter element of the hydraulic servo-motor of the steam turbine, the tip end of a conical block at the bottom end of a first threaded rod is aligned with the center of the broken filter element, then the first threaded rod is rotated to enable a movable nut to move downwards, and therefore a supporting rod and a second threaded rod move downwards along with the movable nut; when the broken filter element is taken out, the two arc-shaped clamping pieces move towards the middle to clamp the broken filter element, clamping is completed, then when the broken filter element is taken out upwards, the top end of the arc-shaped blocking plate can lift the broken filter element, and then the filter element is taken out.

Description

Technical Field

[0001] The invention relates to the technical field of clamping equipment, in particular to a special tool for breaking and removing a filter element of a steam turbine oil motor. Background Art

[0002] The oil motor of a steam turbine, also known as a servo motor, is an actuator used to control and adjust the valve opening. In the oil system of a steam turbine, the oil motor is an important component. It is controlled by an electro-hydraulic control system (DEH) and driven by high-pressure fire-resistant oil (EH oil), thereby controlling the extension and contraction of the piston rod and driving the valve. The special tool for removing the filter element of the oil motor of a steam turbine refers to a special removal tool for the filter element when it is broken when replacing the filter element of the oil motor of a steam turbine.

[0003] At present, the turbine oil motor filter on the market is an important equipment in the EH oil system and an important link for EH oil to enter the oil motor. Fractures between the filter frame and the upper body of the filter often occur. The frame position space is small and cannot be directly removed with fingers. If other tools are used for replacement, it will cause internal damage to the equipment. Improvements are needed. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problem that the filter frame and the mesh body may break when the above-mentioned special tools for removing the broken filter element of the existing steam turbine oil motor are used, and the frame position space is small and cannot be directly removed by fingers, and if other tools are used for replacement, it will cause internal damage to the equipment, the present invention is proposed.

[0006] In order to solve the above technical problems, the present invention provides the following technical solution: the clamping component includes a supporting assembly and an adjusting assembly arranged on the supporting assembly.

[0007] As a preferred solution of the special tool for breaking and removing the turbine oil motor filter element described in the present invention, the support assembly includes a first threaded rod, a limiting nut arranged on the lower side of the outer wall of the first threaded rod, a movable nut arranged in the middle of the outer wall of the first threaded rod, a carrying block arranged at the top end of the first threaded rod, and a conical block arranged at the bottom end of the first threaded rod.

[0008] As a preferred solution of the special tool for breaking and removing the turbine oil motor filter element of the present invention, the adjustment assembly includes a support rod arranged on the movable nut, a second threaded rod arranged on the support rod, an arc-shaped clip arranged on the second threaded rod, a connecting hole arranged on the arc-shaped clip, an adjusting nut arranged on the second threaded rod, and an arc-shaped blocking plate arranged on the lower inner side of the arc-shaped clip.

[0009] As a preferred solution of the special tool for breaking and removing the filter element of a steam turbine oil motor of the present invention, the diameter of the first threaded rod is 12 mm and the length is 170 mm.

[0010] As a preferred solution of the special tool for breaking and removing the filter element of a steam turbine oil motor of the present invention, the diameter of the support rods is 8 mm and the length is 40 mm.

[0011] As a preferred solution of the special tool for breaking and removing the filter element of a steam turbine oil motor of the present invention, the diameter of the second threaded rod is 8 mm and the length is 30 mm.

[0012] As a preferred solution of the special tool for breaking and removing the filter element of a steam turbine oil motor of the present invention, the diameter of the conical block is 12 mm and the length is 8 mm.

[0013] As a preferred solution of the special tool for breaking and removing the filter element of a steam turbine oil motor described in the present invention, the arc-shaped clip has a length of 105 mm, an outer diameter of 57 mm, an inner diameter of 52 mm, and a wall thickness of 2.5 mm.

[0014] As a preferred solution of the special tool for breaking and removing the filter element of a steam turbine oil motor of the present invention, the distance between the upper side of the connecting hole and the top end of the arc-shaped clip is 10 mm.

[0015] As a preferred solution of the special tool for breaking and removing the filter element of a steam turbine oil motor described in the present invention, the inner diameter of the arc-shaped blocking plate is 47 mm, and the length and wall thickness are the same as those of the arc-shaped clamping piece.

[0016] The beneficial effects of the present invention are as follows: by aligning the tip of the conical block with the center of the broken filter element, the positioning of the device is completed, so that the first threaded rod is located at the center of the broken filter element, and then by rotating the first threaded rod, the movable nut is moved up and down on the first threaded rod, driving the adjusting assembly to move up and down, and when the arc-shaped clamp reaches the bottom end, the adjusting nut is rotated to make the adjusting nut move inward on the second threaded rod, thereby making the arc-shaped clamp move inward close to the broken filter element, and when the arc-shaped clamp clamps the broken filter element, the device is lifted upward, and the blocking arc plate blocks the bottom end of the broken filter element to prevent the broken filter element from falling, so that the device can completely remove the entire broken filter element. By using this device, it is possible to avoid the situation where the filter element is damaged by tilting up the filter element using a tool like a crowbar, thereby preventing damage to the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0018] Figure 1 The present invention is a schematic diagram of the overall structure of a special tool for breaking and removing a filter element of a steam turbine oil motor. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0022] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0023] Example 1, reference Figure 1 , which is the first embodiment of the present invention, provides a special tool for breaking and removing the filter element of a turbine oil motor. The device includes a clamping component 100, a supporting component 101, and an adjusting component 102 arranged on the supporting component 101.

[0024] Among them, the entire clamping component 100 is composed of a supporting component 101 and an adjusting component 102. The supporting component 101 is configured to support the adjusting component 102 and provide a movable place for the clamping member in the adjusting component 102. The adjusting component 102 is configured to drive the clamping member to move, so that the clamping member clamps the broken filter element, and finally, by pulling the clamping device, the broken filter element moves with it.

[0025] Preferably, the entire device is first placed on the upper side of the broken filter element through the support component 101, and then the internal clamping part is moved to the middle through the operation of the adjustment component 102 to clamp the broken filter element. Finally, the device and the broken filter element are lifted up together to complete the removal of the broken filter element, thereby avoiding damage to the inside of the device by using crowbars or similar tools.

[0026] Furthermore, the support assembly 101 includes a first threaded rod 101a, a limiting nut 101b arranged on the lower side of the outer wall of the first threaded rod 101a, a movable nut 101c arranged in the middle of the outer wall of the first threaded rod 101a, a carrying block 101d arranged at the top of the first threaded rod 101a, and a conical block 101e arranged at the bottom end of the first threaded rod 101a.

[0027] Among them, the top and bottom ends of the first threaded rod 101a are respectively provided with a carrying block 101d and a limiting nut 101b, which are used to limit the movement of the movable nut 101c to prevent it from detaching from the first threaded rod 101a. The movable nut 101c is used to drive the adjusting component 102 to move up and down on the first threaded rod 101a, so that the clamping part inside the adjusting component 102 can clamp the broken filter element. The carrying block 101d is mainly used to facilitate the operator to hold the device, and secondly, it can also prevent the movable nut 101c from detaching from the first threaded rod 101a; the conical block 101e is used to assist in positioning the entire device, so that the first threaded rod 101a is at the center of the broken filter element.

[0028] Preferably, the device is positioned by aligning the tip of the conical block 101e with the center of the broken filter element, and then the first threaded rod 101a is rotated to allow the movable nut 101c to move up and down on the first threaded rod 101a. When the clamping piece inside the adjusting assembly 102 reaches the bottom, the operation of the adjusting assembly 102 is controlled so that the clamping piece moves toward the middle and clamps the broken filter element to complete the fixation. Finally, the device and the broken filter element are lifted upward together to complete the removal of the broken filter element.

[0029] In summary: by aligning the tip of the conical block 101e with the center of the broken filter element, the positioning of the device is completed, so that the first threaded rod 101a is located at the center of the broken filter element, and then by rotating the first threaded rod 101a, the movable nut 101c is moved up and down on the first threaded rod 101a, driving the adjusting component 102 to move up and down, and when the clamping part inside the adjusting component 102 reaches the bottom, the operation of the adjusting component 102 is controlled to make the clamping part move toward the middle and then clamp the broken filter element from both sides, thereby completing the fixation of the equipment and the filter element, and finally lifting the device upward so that the broken filter element moves upward with the device, thereby completing the removal of the broken filter element.

[0030] Example 2, reference Figure 1 , which is the second embodiment of the present invention, comprising: further, the adjusting assembly 102 comprises a support rod 102a arranged on the moving nut 101c, a second threaded rod 102b arranged on the support rod 102a, an arc-shaped clip 102c arranged on the second threaded rod 102b, a connecting hole 102d arranged on the arc-shaped clip 102c, an adjusting nut 102e arranged on the second threaded rod 102b, and an arc-shaped blocking plate 102f arranged at the lower inner side of the arc-shaped clip 102c.

[0031] Among them, the straight rod is used to connect the moving nut 101c, so that when the moving nut 101c moves, it drives the straight rod and the second threaded rod 102b to move downward together. The second threaded rod 102b is used to facilitate the movement of the arc-shaped clip 102c thereon, and the connecting hole 102d is used to connect the second threaded rod 102b and the arc-shaped clip 102c.

[0032] In addition, the adjusting nut 102e is used to cooperate with the second threaded rod 102b to drive the arc-shaped clamp 102c to move, so that the arc-shaped clamp 102c clamps the broken filter element inward, and the arc-shaped blocking plate 102f is used to press against the bottom end of the broken filter element when the arc-shaped clamp 102c clamps the broken filter element, thereby preventing the filter element from falling off.

[0033] Preferably, when the movable nut 101c moves downward and the arc-shaped clip 102c reaches the bottom end, the adjusting nut 102e is rotated to make the adjusting nut 102e move inward on the second threaded rod 102b, thereby making the arc-shaped clip 102c move inward close to the broken filter element. When the arc-shaped clip 102c clamps the broken filter element, the device is lifted upward. At this time, the blocking arc plate will block the bottom end of the broken filter element to prevent the broken filter element from falling, so that the device can completely remove the entire broken filter element to avoid damage to the inside of the equipment.

[0034] Furthermore, the first threaded rod 101a has a diameter of 12 mm and a length of 170 mm.

[0035] Among them, the length of the first threaded rod 101a is 170 mm, so that the moving distance of the moving nut 101c is about 160 mm, which is used to increase the application range of the arc-shaped clamp 102c and make the application range of the equipment larger.

[0036] Furthermore, the diameter of the support rods 102a is 8 mm and the length is 40 mm.

[0037] Furthermore, the second threaded rod 102b has a diameter of 8 mm and a length of 30 mm.

[0038] Among them, by setting the second threaded rod 102b with a length of 30 mm, the device can adapt to broken filter elements with a diameter between 80 mm and 130 mm, further increasing the application range of the device.

[0039] Furthermore, the diameter of the conical block 101e is 12 mm and the length is 8 mm.

[0040] By providing a tapered block 101e having the same diameter as the first threaded rod 101a, the limiting nut 101b can be disassembled and assembled without being affected by the tapered block 101e.

[0041] Furthermore, the arc-shaped clip 102c has a length of 105 mm, an outer diameter of 57 mm, an inner diameter of 52 mm, and a wall thickness of 2.5 mm.

[0042] Furthermore, the distance between the upper side of the connecting hole 102d and the top end of the arc-shaped clip 102c is 10 mm.

[0043] Furthermore, the inner diameter of the arc-shaped blocking plate 102f is 47 mm, and the length and wall thickness are the same as those of the arc-shaped clip 102c.

[0044] By providing the arc-shaped blocking plate 102f with an inner diameter of 47 mm, the outer diameter of the arc-shaped blocking plate 102f and the inner diameter of the arc-shaped clip 102c are made the same.

[0045] In summary: by aligning the tip of the conical block 101e with the center of the broken filter element, the positioning of the device is completed, so that the first threaded rod 101a is located at the center of the broken filter element, and then by rotating the first threaded rod 101a, the movable nut 101c is moved up and down on the first threaded rod 101a, driving the adjusting assembly 102 to move up and down, and when the arc-shaped clip 102c reaches the bottom end, the adjusting nut 102e is rotated to make the adjusting nut 102e move inward on the second threaded rod 102b, so that the arc-shaped clip 102c moves inward close to the broken filter element, and when the arc-shaped clip 102c clamps the broken filter element, the device is lifted upward, and the blocking arc plate will block the bottom end of the broken filter element to prevent the broken filter element from falling, so that the device can completely remove the entire broken filter element. By using this device, it is possible to avoid the situation where the filter element is damaged by using a tool like a crowbar to lift it up, thereby preventing damage to the equipment.

[0046] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0047] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A special tool for breaking and removing the filter element of a steam turbine oil motor, characterized in that: include, The clamping component (100) comprises a supporting component (101) and an adjusting component (102) arranged on the supporting component (101).

2. The special tool for breaking and removing the filter element of a steam turbine oil motor according to claim 1 is characterized in that: The support assembly (101) comprises a first threaded rod (101a), a limiting nut (101b) arranged on the lower side of the outer wall of the first threaded rod (101a), a moving nut (101c) arranged in the middle of the outer wall of the first threaded rod (101a), a carrying block (101d) arranged at the top end of the first threaded rod (101a), and a conical block (101e) arranged at the bottom end of the first threaded rod (101a).

3. The special tool for breaking and removing the filter element of a steam turbine oil motor according to claim 2 is characterized in that: The adjustment assembly (102) includes a support rod (102a) arranged on the movable nut (101c), a second threaded rod (102b) arranged on the support rod (102a), an arc-shaped clamping piece (102c) arranged on the second threaded rod (102b), a connecting hole (102d) arranged on the arc-shaped clamping piece (102c), an adjustment nut (102e) arranged on the second threaded rod (102b), and an arc-shaped blocking plate (102f) arranged at the lower inner side of the arc-shaped clamping piece (102c).

4. The special tool for breaking and removing the filter element of a steam turbine oil motor according to claim 3 is characterized in that: The first threaded rod (101a) has a diameter of 12 mm and a length of 170 mm.

5. The special tool for breaking and removing the filter element of a steam turbine oil motor according to claim 4 is characterized in that: The support rods (102a) have a diameter of 8 mm and a length of 40 mm.

6. The special tool for breaking and removing the filter element of a steam turbine oil motor according to claim 5 is characterized in that: The second threaded rod (102b) has a diameter of 8 mm and a length of 30 mm.

7. The special tool for breaking and removing the filter element of a steam turbine oil motor according to claim 6 is characterized in that: The cone block (101e) has a diameter of 12 mm and a length of 8 mm.

8. The special tool for breaking and removing the filter element of a steam turbine oil motor according to claim 7 is characterized in that: The arc-shaped clip (102c) has a length of 105 mm, an outer diameter of 57 mm, an inner diameter of 52 mm, and a wall thickness of 2.5 mm.

9. The special tool for breaking and removing the filter element of a steam turbine oil motor according to claim 8 is characterized in that: The distance between the upper side of the connection hole (102d) and the top end of the arc-shaped clip (102c) is 10 mm.

10. The special tool for breaking and removing the filter element of a steam turbine oil motor according to claim 9, characterized in that: The inner diameter of the arc-shaped blocking plate (102f) is 47 mm, and its length and wall thickness are the same as those of the arc-shaped clip (102c).

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