A steam baffle ring installation tool

Abstract

A steam baffle ring installation tool relates to the technical field of steam baffle ring assembly of a unit. The present invention solves the problem that the existing steam baffle ring installation method uses a manual method to expand the inner hole of the steam baffle ring to the outer circle size of the set flange. Due to the force applied at several local positions, the steam baffle ring will be severely deformed, and the deformation of the opening cannot be restored after the steam baffle ring is assembled. The present invention assembles the steam baffle ring onto the installation cone sleeve, inserts the guide disk from the inner hole of the cone sleeve, and at the same time, installs the pressure rod on the guide disk through the three notches on the cone sleeve. At this time, the bottom of the pressure rod is against the upper end face of the steam baffle ring. The guide disk is aligned by adjusting the relative position of the pressure rod and the steam baffle ring so that the center of the guide disk and the center of the cone sleeve are on the same straight line. The guide disk is evenly expanded by rotating the push rod to ensure that the expansion of the steam baffle ring in the circumferential direction is consistent, and deformation cannot be restored. The present invention is used to ensure that the steam baffle ring can be retracted to a free state after assembly.

Description

Technical Field

[0001] The invention relates to the technical field of steam baffle ring assembly of a unit, and in particular to a steam baffle ring installation tool. Background Art

[0002] The steam retaining ring of the unit is an overlap design structure. Due to the high precision of single-piece processing and complex procedures, the yield rate is low. Even if the single-piece processing is qualified, the steam retaining ring needs to be installed in the flange ring groove during assembly. The front section of the installation flange is larger than the size of the inner hole of the steam retaining ring. The traditional method is to manually open the steam retaining ring. The steam retaining ring is subjected to force at several local positions, which will cause serious deformation of the steam retaining ring. After the installation is installed, it cannot be restored to the free state before the installation, resulting in uneven contact between the steam retaining ring and the inner hole of the valve head, poor guidance and large leakage.

[0003] In summary, the existing steam retaining ring installation method uses manual method to expand the inner hole of the steam retaining ring to the outer circle size of the set flange. Due to the force at several local positions, the steam retaining ring will be seriously deformed, and there is a problem that the opening deformation of the steam retaining ring cannot be restored after assembly. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the existing steam-blocking ring installation method adopts a manual method to expand the inner hole of the steam-blocking ring to the outer circle size of the set flange. Due to the force at several local positions, the steam-blocking ring will be seriously deformed, and there is a problem that the opening deformation of the steam-blocking ring cannot be restored after assembly, and further provide a steam-blocking ring installation tool.

[0005] The technical solution of the present invention is:

[0006] A steam-blocking ring installation tool, the steam-blocking ring installation tool comprising an installation cone sleeve 1, a guide plate 2, a push rod 3 and two or more pressure rods 4, the upper part of the installation cone sleeve 1 is a hollow truncated cone structure with an opening at the lower end, the lower part of the installation cone sleeve 1 is a hollow cylindrical structure with openings at both ends, the hollow cylindrical structure and the hollow truncated cone structure are coaxially connected in sequence from bottom to top, the steam-blocking ring 7 is horizontally placed on the cone surface of the installation cone sleeve 1, the cone surface of the hollow truncated cone structure of the installation cone sleeve 1 is evenly provided with two or more notches along the circumferential direction, the guide plate 2 is coaxially arranged inside the hollow truncated cone structure of the installation cone sleeve 1, and the side surface of the guide plate 2 is evenly provided with two or more sockets corresponding to the notches along the circumferential direction, and the pressure rods are inserted into the sockets 4, the end of the pressure rod 4 away from the guide plate 2 passes through the notch of the conical surface of the mounting cone sleeve 1 and extends to the outside, and the end of the pressure rod 4 outside the mounting cone sleeve 1 is overlapped on the steam baffle ring 7, the center of the upper end surface of the guide plate 2 is processed with a guide plate groove in the vertical direction, the center of the upper end surface of the hollow truncated cone structure of the mounting cone sleeve 1 is processed with a push rod mounting through hole in the vertical direction, the push rod mounting through hole is processed with a push rod internal thread, the outer cylindrical surface of the push rod 3 is processed with an external thread matching the push rod internal thread, the lower end of the push rod 3 is spirally installed in the push rod mounting through hole along the vertical direction, and the bottom of the push rod 3 is against the guide plate groove of the guide plate 2, and the upper end of the push rod 3 is processed with a rectangular clamping block matching the wrench.

[0007] Furthermore, the number of the pressure rod 4, the notch for installing the cone sleeve 1 and the insertion hole of the guide plate 2 are all three.

[0008] Furthermore, the steam baffle ring installation tool also includes more than two positioning pins 5, and more than two pin holes are horizontally processed along the circumferential direction on the cylindrical surface of the hollow cylindrical structure for installing the cone sleeve 1, and the positioning pins 5 are inserted into the pin holes.

[0009] Furthermore, the number of the positioning pin 5 and the number of the pin holes for mounting the taper sleeve 1 are both three.

[0010] Furthermore, the steam baffle ring installation tool also includes a handle 6, and a handle insertion hole is opened in the horizontal direction on the conical surface of the hollow truncated cone structure of the installation cone sleeve 1, and one end of the handle 6 is horizontally inserted into the handle insertion hole of the installation cone sleeve 1.

[0011] Furthermore, the groove of the guide plate is a tapered groove, and the lower end of the push rod 3 is processed with a pointed head matching the tapered groove, and the pointed head of the push rod 3 is inserted into the tapered groove of the guide plate 2.

[0012] Furthermore, a rectangular clamping block matching the wrench is processed on the upper end of the push rod 3 .

[0013] Furthermore, the bottom of the side of the hollow cylindrical structure on which the cone sleeve 1 is installed is processed with a chamfered structure.

[0014] Compared with the prior art, the present invention has the following effects:

[0015] The installation tool of the present invention can ensure that during the installation process of the steam deflector ring 7, the inner hole of the steam deflector ring 7 is uniformly stressed in the circumferential direction, and the assembled steam deflector ring 7 can be retracted to a free state, reducing the risk of being unable to recover after being separated for assembly, and improving assembly efficiency. The installation cone sleeve 1 of the installation tool adopts a conical surface structure. After the steam deflector ring 7 is fitted to the conical surface in a free state, the pressure rods 4 extending from the three notches on the conical surface are evenly pressed on the end face of the steam deflector ring 7. The push rod 3 is rotated with a wrench so that the tip of the lower end of the push rod 3 presses against the guide plate groove of the guide plate 2, and the inner hole of the steam deflector ring 7 is stretched open along with the conical surface, and finally stretched to the outer circle size of the set flange, so that during assembly, axial force can be evenly applied at three points on the end face of the steam deflector ring 7. Finally, when the steam deflector ring 7 is about to be assembled in place, it slides into the flange groove through the designed chamfered structure to complete the installation process, thereby meeting the product assembly requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front view of a steam baffle ring installation tool of the present invention;

[0017] Figure 2 is a side view of a steam baffle ring installation tool of the present invention;

[0018] Figure 3 is a top view of the steam baffle ring installation tool of the present invention;

[0019] Figure 4 yes Figure 1 Sectional view at AA;

[0020] Figure 5 yes Figure 2 Sectional view at BB. DETAILED DESCRIPTION

[0021] Specific implementation method 1: Combination Figures 1 to 5Describe the present embodiment, a steam-blocking ring installation tool of the present embodiment, the steam-blocking ring installation tool comprises an installation cone sleeve 1, a guide plate 2, a push rod 3 and two or more pressure rods 4, the upper part of the installation cone sleeve 1 is a hollow conical structure with an opening at the lower end, the lower part of the installation cone sleeve 1 is a hollow cylindrical structure with openings at both ends, the hollow cylindrical structure and the hollow conical structure are coaxially connected in sequence from bottom to top, the steam-blocking ring 7 is horizontally placed on the conical surface of the installation cone sleeve 1, the conical surface of the hollow conical structure of the installation cone sleeve 1 has two or more notches evenly arranged in the circumferential direction, the guide plate 2 is coaxially arranged inside the hollow conical structure of the installation cone sleeve 1, and the side surface of the guide plate 2 has two or more notches evenly arranged in the circumferential direction. A pressure rod 4 is inserted into the socket corresponding to the notch, and the end of the pressure rod 4 away from the guide plate 2 passes through the notch of the conical surface of the mounting cone sleeve 1 and extends to the outside, and the end of the pressure rod 4 outside the mounting cone sleeve 1 is overlapped on the steam baffle ring 7, and a guide plate groove is processed with the center of the upper end surface of the guide plate 2 in the vertical direction, and a push rod mounting through hole is processed with the center of the upper end surface of the hollow truncated cone structure of the mounting cone sleeve 1 in the vertical direction, and the push rod mounting through hole is processed with an internal push rod thread, and the outer cylindrical surface of the push rod 3 is processed with an external thread matching the internal push rod thread, and the lower end of the push rod 3 is spirally installed in the push rod mounting through hole along the vertical direction, and the bottom of the push rod 3 is against the guide plate groove of the guide plate 2.

[0022] Specific implementation method 2: Combination Figures 1 to 5 This embodiment is described. The number of the pressure rod 4, the notch for installing the cone sleeve 1 and the jack of the guide plate 2 are all three. This arrangement ensures that during assembly, axial force can be evenly applied at three points on the end surface of the steam retaining ring 7, ensuring that the assembled steam retaining ring 7 can shrink to a free state, reducing the risk of being unable to recover after separate assembly and improving assembly efficiency. Other components and connection relationships are the same as those of the first embodiment.

[0023] Specific implementation method three: Combination Figures 1 to 5 To explain this embodiment, the steam retaining ring installation tool of this embodiment also includes two or more positioning pins 5. Two or more pin holes are horizontally processed along the circumferential direction on the cylindrical surface of the hollow cylindrical structure of the cone sleeve 1, and the positioning pins 5 are inserted into the pin holes. In this way, the pins are used for axial positioning when installing the outermost steam retaining ring. The other components and connection relationships are the same as those of the first or second specific embodiments.

[0024] Specific implementation method four: Combination Figures 1 to 5 In this embodiment, the number of the positioning pin 5 and the pin hole for installing the cone sleeve 1 are both three. In this arrangement, the pin is used for axial positioning when installing the outermost steam retaining ring. The other components and connection relationships are the same as those of the first, second or third embodiments.

[0025] Specific implementation method five: Combination Figures 1 to 5To explain this embodiment, the steam retaining ring installation tool of this embodiment also includes a handle 6. A handle insertion hole is opened in the horizontal direction on the conical surface of the hollow truncated cone structure of the installation cone sleeve 1, and one end of the handle 6 is horizontally inserted into the handle insertion hole of the installation cone sleeve 1. In this way, the handle 6 is arranged on the conical surface of the installation cone sleeve 1, which is convenient for fixing and limiting the installation cone sleeve 1 when the top rod 3 is rotated, so as to prevent the installation cone sleeve 1 from rotating with the top rod 3. Other components and connection relationships are the same as those of the specific embodiments one, two, three or four.

[0026] Specific implementation method six: Combination Figures 1 to 5 This embodiment is described. The groove of the guide plate of this embodiment is a conical groove. The lower end of the push rod 3 is processed with a pointed head that matches the conical groove. The pointed head of the push rod 3 is inserted into the conical groove of the guide plate 2. In this way, the pointed head of the push rod 3 and the conical groove of the guide plate 2 are in sliding fit. By rotating the push rod 3 to adjust the up and down movement distance of the guide plate 2, the pointed head at the lower end of the push rod 3 is pressed against the guide plate groove of the guide plate 2. Under the action of the push rod 3, the guide plate 2 drives the three pressure rods 4 to drag the steam retaining ring 7 downward, and the inner hole of the steam retaining ring 7 is opened together with the conical surface. The other components and connection relationships are the same as those of the specific embodiments one, two, three, four or five.

[0027] Specific implementation method seven: Combination Figures 1 to 5 To explain this embodiment, the upper end of the push rod 3 of this embodiment is processed with a rectangular clamping block that matches the wrench. With this arrangement, using a wrench to rotate the push rod 3 is convenient and labor-saving, thereby improving the working efficiency. The other components and connection relationships are the same as those of the specific embodiments one, two, three, four, five or six.

[0028] Specific implementation method eight: Combination Figures 1 to 5 This embodiment is described. The bottom of the hollow cylindrical structure of the mounting cone sleeve 1 in this embodiment is processed with a chamfered structure. With this arrangement, when the steam retaining ring 7 is about to be assembled in place, it slides into the flange groove through the designed chamfered structure to complete the installation process. The other components and connection relationships are the same as those of the specific embodiments 1, 2, 3, 4, 5, 6 or 7.

[0029] How it works

[0030] Combination Figures 1 to 5 The working principle of the steam-baffle ring installation tool of the present invention is explained as follows: when in use, first assemble the steam-baffle ring 7 onto the installation cone sleeve 1, insert the guide disk 2 from the inner hole of the cone sleeve 1, and at the same time, install the pressure rod 3 on the guide disk 2 through the three notches on the cone sleeve 1. At this time, the bottom of the pressure rod 4 is against the upper end surface of the steam-baffle ring 7. By adjusting the relative position of the pressure rod 4 and the steam-baffle ring 7, the guide disk 2 is aligned so that the center of the guide disk 2 and the center of the cone sleeve 1 are located on the same straight line. By rotating the push rod 3 to adjust the up and down moving distance of the guide disk 2, the steam-baffle ring 7 is evenly expanded to ensure that the expansion of the steam-baffle ring 7 in the circumferential direction is consistent to avoid deformation that cannot be restored.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steam baffle ring installation tool, characterized in that: The steam-blocking ring installation tool comprises an installation cone sleeve (1), a guide plate (2), a push rod (3) and three pressure rods (4); the upper portion of the installation cone sleeve (1) is a hollow truncated cone structure with an opening at the lower end; the lower portion of the installation cone sleeve (1) is a hollow cylindrical structure with openings at both ends; the hollow cylindrical structure and the hollow truncated cone structure are coaxially connected in sequence from bottom to top; the steam-blocking ring (7) is horizontally placed on the cone surface of the installation cone sleeve (1); and the cone surface of the hollow truncated cone structure of the installation cone sleeve (1) is uniformly circumferentially The guide plate (2) is coaxially arranged inside the hollow truncated cone structure of the mounting cone sleeve (1), and three insertion holes corresponding to the notches are evenly arranged on the side of the guide plate (2) along the circumferential direction. A pressure rod (4) is inserted into the insertion hole. The end of the pressure rod (4) away from the guide plate (2) passes through the notch of the cone surface of the mounting cone sleeve (1) and extends to the outside. The end of the pressure rod (4) outside the mounting cone sleeve (1) overlaps the steam baffle ring (7). The upper end surface of the guide plate (2) A guide plate groove is processed in the center along the vertical direction, a push rod installation through hole is processed in the center of the upper end surface of the hollow truncated cone structure for installing the cone sleeve (1) along the vertical direction, a push rod internal thread is processed in the push rod installation through hole, an external thread matching the push rod internal thread is processed on the outer cylindrical surface of the push rod (3), the lower end of the push rod (3) is spirally installed in the push rod installation through hole along the vertical direction, and the bottom of the push rod (3) abuts against the guide plate groove of the guide plate (2); the steam-blocking ring installation tool also includes three positioning pins (5), three pin holes are processed horizontally in the circumferential direction on the cylindrical surface of the hollow cylindrical structure for installing the cone sleeve (1), and positioning pins (5) are inserted in the pin holes; the steam-blocking ring installation tool also includes a handle (6), a handle insertion hole is opened in the horizontal direction on the conical surface of the hollow truncated cone structure for installing the cone sleeve (1), and one end of the handle (6) is horizontally inserted in the handle insertion hole of the installing cone sleeve (1); a chamfered structure is processed at the bottom of the side of the hollow cylindrical structure for installing the cone sleeve (1).

2. A steam baffle ring installation tool according to claim 1, characterized in that: The groove of the guide plate is a tapered groove, and the lower end of the push rod (3) is processed with a pointed head matching the tapered groove, and the pointed head of the push rod (3) is inserted into the tapered groove of the guide plate (2).

3. A steam baffle ring installation tool according to claim 2, characterized in that: The upper end of the push rod (3) is processed with a rectangular clamping block matching the wrench.

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