Ball valve assembly tool

Abstract

The utility model discloses a ball valve assembly tool which comprises a positioning support which is positioned and connected with a flange inner hole face of a valve body of a ball valve. And the loading and unloading screw rod penetrates through the positioning bracket, and the lower end of the loading and unloading screw rod is connected with a ball body of the ball valve. And the screw sleeve is arranged on the loading and unloading screw rod in a sleeving manner and is connected with the positioning bracket. And the mounting and taking screw rod is rotated, and the mounting and taking screw rod moves in the axial direction of the screw sleeve so as to drive the ball body to move, so that the ball body is positioned, mounted or dismounted. The device is simple in structure, convenient to operate and high in assembling and manufacturing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of marine ball valves, in particular to a ball valve assembly tool. Background Art

[0002] In recent years, although the level of valve manufacturing in my country has been greatly improved, there is still a certain gap compared with the world's advanced level. The automation level in valve manufacturing, assembly and testing in my country is still relatively low. Most manufacturers use a single-station mode to complete the mechanical assembly of valves, which has low production efficiency and cannot effectively guarantee the assembly quality. Therefore, it is inevitable to explore automatic assembly technology under a good technical development platform, and with the application of some special fixtures and combination fixtures, the quality and efficiency of valve assembly are greatly improved.

[0003] The installation and removal of the sealing opening and closing parts of the inner cavity of the ball valve and the valve body is the most important part of the overall assembly of the ball valve. Due to its special structure, the ball of the ball valve is difficult to position and adjust during assembly. The sealing opening and closing parts of the inner cavity of the ball valve include the ball, double-sided valve seats, double-sided sealing ring assemblies, and upper and lower shaft sleeves of the ball, etc., which involve the adjustment of the fitting gap between the ball and the sealing ring surface, as well as the valve body and the valve seat sealing surface, and pay attention to the assembly integrity and balance on both sides. When the valve is assembled using the existing technology, the center positioning of the disassembled valve ball is inaccurate and easy to deflect. The fitting gaps between the ball and the sealing ring surface, as well as the valve body and the valve seat sealing surface, are difficult to adjust effectively. The assembly quality is very difficult to guarantee. Sometimes it is necessary to trim the upper and lower friction reducing pads, and it is necessary to repeatedly disassemble and assemble the ball and the inner cavity sealing opening and closing parts. Each part is easy to wear and damage, and the product quality is difficult to guarantee. The efficiency is very low. Each assembly and calibration is time-consuming and labor-intensive, and is greatly affected by human factors.

[0004] Especially for ball valves with larger diameters, their parts are heavy and more difficult to assemble. Therefore, it is necessary to design a special fixture that is easy to position and adjust for the assembly work. Utility Model Content

[0005] The utility model aims to provide a ball valve assembly tool, which is used for installing and removing a marine ball valve.

[0006] In order to achieve the above objectives, the utility model is implemented through the following technical solutions:

[0007] A ball valve assembly tool comprises: a positioning bracket, which is positioned and connected to the inner hole surface of the flange of the valve body of the ball valve. A mounting screw rod, which passes through the positioning bracket and is connected to the ball of the ball valve at the lower end. A threaded sleeve, which is sleeved on the mounting screw rod and connected to the positioning bracket. The mounting screw rod is rotated, and the mounting screw rod moves along the axial direction of the threaded sleeve to drive the ball to move, thereby realizing the positioning, installation or removal of the ball.

[0008] Optionally, the positioning bracket includes: a flange ring, the bottom of which is connected to the valve body; an upper plate, which is arranged on the top of the flange ring; the loading and unloading screw rod passes through the upper plate and the flange ring, and the upper plate is used to support the loading and unloading screw rod.

[0009] Optionally, the loading and unloading screw is coaxially arranged with the flange ring.

[0010] Optionally, the flange ring includes a ring body portion and a plurality of leg portions; the plurality of leg portions are arranged at intervals around the ring body portion, and each of the leg portions is connected to the valve body.

[0011] Optionally, the upper plate is U-shaped, the upper plate is mounted on the ring body, and the two ends of the upper plate are respectively connected to the ring body. The top surface of the upper plate is provided with a groove, and the bottom of the wire sleeve is embedded in the groove. A mounting hole is provided in the groove, and the loading and unloading screw rod is arranged through the mounting hole.

[0012] Optionally, the ball valve assembly tool further includes: a screw rod connecting sleeve, which is sleeved on the installation and removal screw rod and is located below the upper plate, and the installation and removal screw rod is connected to the ball through the screw rod connecting sleeve.

[0013] Optionally, the ball valve assembly tool further comprises: a bidirectional thrust ball bearing, which is sleeved on the installation and removal screw and is arranged in the screw rod connecting sleeve. A retaining ring is arranged at the bottom end of the installation and removal screw and is located in the bidirectional thrust ball bearing, and the rotation of the installation and removal screw drives the retaining ring to rotate in the bidirectional thrust ball bearing.

[0014] Optionally, the ball valve assembly tool further includes: a ball connection sleeve, through which the screw rod connection sleeve is connected to the upper end of the ball body; and two pressing blocks, which are arranged in the ball connection sleeve and located on both sides of the upper end of the ball body, for clamping the upper end of the ball body.

[0015] Optionally, a positioning groove is provided on the bottom surface of the ball connecting sleeve, the positioning groove matches the upper end of the sphere, and the upper end of the sphere is snapped into the positioning groove.

[0016] Optionally, the ball valve assembly tool further includes: a handle connected to the upper end of the loading and unloading screw rod and used for rotating the loading and unloading screw rod.

[0017] The utility model has at least one of the following technical effects:

[0018] The tooling of the utility model can accurately make the ball closely fit with the sealing surface during installation through the positioning bracket without calibration. The utility model realizes installation and disassembly of the ball valve by rotating the screw rod, and has a simple structure, convenient operation and easy control of assembly.

[0019] The tooling of the utility model greatly improves the quality and efficiency of assembly and disassembly, greatly improves the efficiency of assembly, disassembly and maintenance of ball valves, and reduces production costs.

[0020] The utility model has the advantages of convenient assembly operation and good versatility. Since each tooling piece is positioned separately, the positioning accuracy is high and no calibration is required. It is not only convenient and fast, but also has accurate positioning, good dimensional accuracy, easy control and strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a ball valve assembly tool provided in one embodiment of the utility model;

[0022] Figure 2 A cross-sectional view of a ball valve assembly tool provided in one embodiment of the utility model;

[0023] Figure 3 An enlarged structural diagram of part A provided in one embodiment of the utility model;

[0024] Figure 4 A schematic diagram of the structure of the screw rod provided in one embodiment of the utility model;

[0025] Figure 5 A schematic diagram of the structure of a screw rod connecting sleeve provided in one embodiment of the utility model;

[0026] Figure 6 A schematic diagram of the structure of an upper plate provided in one embodiment of the utility model;

[0027] Figure 7 A schematic diagram of the structure of a flange ring provided in one embodiment of the utility model;

[0028] Figure 8 A schematic diagram of the structure of a silk sleeve provided in one embodiment of the utility model;

[0029] Fig. 9 A front view of a ball connecting sleeve provided in one embodiment of the utility model;

[0030] Fig.10 A top view of a ball connecting sleeve provided in one embodiment of the utility model;

[0031] Fig.11 A top view of a retaining ring provided in one embodiment of the utility model. DETAILED DESCRIPTION

[0032] The following is a further detailed description of a ball valve assembly tool proposed by the utility model in combination with the accompanying drawings and specific implementation methods. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so it has no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model.

[0033] Figure 1 A ball valve assembly tool is provided in one embodiment of the utility model. Figure 1 As shown, this embodiment provides a ball valve assembly tool, including: a positioning bracket 300, which is positioned and connected to the inner hole surface of the flange of the valve body 1 of the ball valve. A mounting screw 100, which is set through the positioning bracket 300, and the lower end is connected to the ball 2 of the ball valve. A threaded sleeve 400, which is sleeved on the mounting screw 100 and connected to the positioning bracket 300. The mounting screw 100 is rotated, and the mounting screw 100 moves along the axial direction of the threaded sleeve 400 to drive the ball 2 to move, thereby realizing the positioning, installation or removal of the ball 2.

[0034] The tooling of this embodiment can accurately install the ball valve through the positioning bracket 300 without calibration, and can drive the ball 2 by rotating the screw rod 100 to achieve installation and removal of the ball 2. It has a simple structure and is easy to operate.

[0035] In this embodiment or some other embodiments, as Figure 1 and Figure 2 As shown, the positioning bracket 300 includes: a flange ring 302, the bottom of which is connected to the valve body 1. An upper plate 301 is arranged on the top of the flange ring 302; the loading and unloading screw rod 100 is arranged through the upper plate 301 and the flange ring 302, and the upper plate 301 is used to support the loading and unloading screw rod 100. In this embodiment, the flange ring 302 is connected to the valve body 1 through four hexagon socket bolts, and the upper plate 301 is connected to the flange ring 302 through hexagon bolts, but the utility model is not limited to this.

[0036] In this embodiment or some other embodiments, please continue to refer to Figure 1The loading and unloading screw rod 100 is coaxially arranged with the flange ring 302 .

[0037] like Figure 6 and Figure 7 As shown, the flange ring 302 includes a ring body 3022 and a plurality of leg parts 3023; the plurality of leg parts 3023 are arranged at intervals around the ring body 3022, and each leg part 3023 is connected to the valve body 1. The upper plate 301 is U-shaped, and the upper plate 301 is mounted on the ring body 3022, and its two ends are respectively connected to the ring body 3022. A groove 3011 is provided on the top surface of the upper plate 301, and the bottom of the wire sleeve 400 is embedded in the groove 3011; a mounting hole 3021 is opened in the groove 3011, and the mounting and removing screw rod 100 is arranged through the mounting hole 3021.

[0038] Specifically, a plurality of positioning holes 3021 are provided on the top surface of the flange ring 302, and the holes thereof penetrate the leg portion 3023. The flange ring 302 is positioned and connected to the valve body 1 through screws and the plurality of positioning holes 3021, so as to realize the positioning of the screw rod 100. The groove 3011 provided on the top surface of the upper plate 301 is a center arc stop. The thread sleeve 400 is embedded in the upper plate 301 to cooperate with the screw rod 100, positioned in the center arc stop and connected to the upper plate 301 through screws.

[0039] In this embodiment or some other embodiments, as Figure 1 and Figure 5 As shown, the ball valve assembly tool further includes: a screw rod connecting sleeve 200, which is sleeved on the installation and removal screw rod 100 and is located below the upper plate 301. The installation and removal screw rod 100 is connected to the ball 2 through the screw rod connecting sleeve 200.

[0040] like Figure 3 and Fig.11 As shown, the ball valve assembly tool further includes: a bidirectional thrust ball bearing 700, which is sleeved on the mounting and removing screw rod 100 and is arranged in the screw rod connecting sleeve 200. A retaining ring 800 is arranged at the bottom end of the mounting and removing screw rod 100 and is located in the bidirectional thrust ball bearing 700. The rotation of the mounting and removing screw rod 100 drives the retaining ring 800 to rotate in the bidirectional thrust ball bearing 700.

[0041] It should be noted that the bidirectional thrust ball bearing 700 is installed on the mounting and removing screw rod 100 through a retaining ring 800 and a hexagonal bolt, and the retaining ring 800 fixes the bidirectional thrust ball bearing 700 to one end of the mounting and removing screw rod 100 through the hexagonal bolt.

[0042] The bidirectional thrust ball bearing 700 used in this embodiment can effectively reduce friction, thereby making the rotation smoother and more stable, and extending the service life of the tooling.

[0043] In this embodiment or some other embodiments, as Fig. 9 and Fig.10 As shown, the ball valve assembly tool further includes: a ball connection sleeve 500, through which the screw rod connection sleeve 200 is connected to the upper end of the ball 2. Two pressing blocks 900 are arranged in the ball connection sleeve 500 and located on both sides of the upper end of the ball 2, for clamping the upper end of the ball 2. A positioning groove 501 is provided on the bottom surface of the ball connection sleeve 500, and the positioning groove 501 matches the upper end of the ball 2, and the upper end of the ball 2 is inserted into the positioning groove 501.

[0044] Please continue to refer to Figure 1 The ball valve assembly tool further comprises a handle 600 connected to the upper end of the mounting and removing screw rod 100 for rotating the mounting and removing screw rod 100. Figure 4 As shown, a middle hole is provided at the top of the loading and unloading screw rod 100, and the handle 600 is connected to the loading and unloading screw rod 100 through the middle hole. When loading and unloading, the handle 600 can be rotated to move the loading and unloading screw rod 100 up and down.

[0045] In this embodiment, through the positioning and coordination of various connecting parts such as the flange ring 302, the upper plate 301, the threaded sleeve 400, the screw connecting sleeve 200, the ball connecting sleeve 500 and the retaining ring 800, the assembly workers only need to rotate the handle 600 left and right when installing and removing the valve inner cavity sealing opening and closing parts to easily move the installation and removal screw 100 up and down and drive the entire inner cavity sealing opening and closing parts to move up and down as a whole. The positioning is accurate, the installation and adjustment are convenient and reliable, and the worn matching parts are not damaged. The subsequent clearance adjustment, repair and other processing are convenient, so as to quickly achieve the purpose of installation and disassembly.

[0046] The flange ring 302 and the upper plate 301 of this embodiment are made of Q235-A steel plate material, which has a stable structure and a relatively low price, and is subjected to a surface blackening treatment to improve corrosion resistance and wear resistance. The wire sleeve 400 is made of QAL9-2 material, which has much higher strength, wear resistance and corrosion resistance than general pure copper materials, and has a hardness of more than HRC35. The excellent performance indicators effectively extend its service life. The loading and unloading screw 100 is made of 45#, which has significantly improved mechanical properties such as hardness, strength, and toughness after heat treatment and surface blackening treatment, and has improved heat resistance and corrosion resistance.

[0047] In summary, the tooling structure of this embodiment is simple and easy to operate, which greatly improves the quality and efficiency of assembly and disassembly, greatly improves the efficiency of ball valve assembly and disassembly and maintenance, and reduces production costs. This embodiment is easy to assemble and operate and has good versatility. Since each tooling part is positioned separately, the tooling has high positioning accuracy and does not require calibration. It is not only convenient and fast, but also has accurate positioning, good dimensional accuracy, and is easy to control, and has strong applicability.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0049] In the description of the present invention, it should be understood that the terms "center", "height", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0050] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0052] Although the content of the utility model has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the utility model. After reading the above content, various modifications and substitutions of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be limited by the attached claims.

Claims

1. A ball valve assembly tool, characterized in that: include: A positioning bracket, which is positioned and connected to the flange inner hole surface of the valve body of the ball valve; A screw rod is installed and removed, which passes through the positioning bracket and has a lower end connected to the ball of the ball valve; A thread sleeve, which is sleeved on the loading and unloading threaded rod and connected to the positioning bracket; The installation and removal screw rod is rotated, and the installation and removal screw rod moves along the axial direction of the thread sleeve to drive the ball to move, thereby realizing the positioning installation or removal of the ball.

2. The ball valve assembly tool according to claim 1, characterized in that: The positioning bracket comprises: A flange ring, the bottom of which is connected to the valve body; An upper plate is arranged on the top of the flange ring; the loading and unloading screw rod passes through the upper plate and the flange ring, and the upper plate is used to support the loading and unloading screw rod.

3. The ball valve assembly tool according to claim 2, characterized in that: The loading and unloading screw rod is coaxially arranged with the flange ring.

4. The ball valve assembly tool according to claim 2, characterized in that: The flange ring comprises a ring body and a plurality of leg parts; the plurality of leg parts are arranged at intervals around the ring body, and each of the leg parts is connected to the valve body.

5. The ball valve assembly tool according to claim 4, characterized in that: The upper plate is U-shaped, and is mounted on the ring body, and its two ends are respectively connected to the ring body; The top surface of the upper plate is provided with a groove, and the bottom of the wire sleeve is embedded in the groove; a mounting hole is opened in the groove, and the loading and unloading screw rod is arranged through the mounting hole.

6. The ball valve assembly tool according to claim 2, characterized in that: Also includes: The screw rod connecting sleeve is sleeved on the loading and unloading screw rod and is located below the upper plate. The loading and unloading screw rod is connected to the sphere through the screw rod connecting sleeve.

7. The ball valve assembly tool according to claim 6, characterized in that: Also includes: A bidirectional thrust ball bearing is sleeved on the loading and unloading screw rod and is arranged in the screw rod connecting sleeve; A retaining ring is arranged at the bottom end of the loading and unloading screw rod and is located in the bidirectional thrust ball bearing. The rotation of the loading and unloading screw rod drives the retaining ring to rotate in the bidirectional thrust ball bearing.

8. The ball valve assembly tool according to claim 6, characterized in that: Also includes: A ball connecting sleeve, through which the screw connecting sleeve is connected to the upper end of the sphere; Two pressing blocks are arranged in the ball connecting sleeve and are located on both sides of the upper end of the sphere, and are used to clamp the upper end of the sphere.

9. The ball valve assembly tool according to claim 8, characterized in that: A positioning groove is provided on the bottom surface of the ball connecting sleeve, the positioning groove matches the upper end of the sphere, and the upper end of the sphere is inserted into the positioning groove.

10. The ball valve assembly tool according to claim 1, characterized in that: Also includes: A handle is connected to the upper end of the loading and unloading screw rod and is used to rotate the loading and unloading screw rod.

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