Temporary fixing tool for replacing governor main pressure distribution valve

Abstract

The utility model relates to the technical field of pressure regulating valve replacement, especially to a kind of temporary fixing tool for replacing governor main pressure regulating valve, it include: support mechanism, independent fixed setting, support mechanism is provided with mounting mechanism;Lead screw, one end is installed on mounting mechanism, the other end is provided with connecting piece, connecting piece is rotatably installed with guide wheel;Adjusting mechanism, it is installed on lead screw, adjusting mechanism is installed with traction rope, the other end of traction rope is provided with hook, and traction rope is slidably connected with the positioning slot of guide wheel;Steering wheel, rotatably installed in support mechanism, traction rope and steering wheel are rotatably connected in cooperation;Driving mechanism, it is installed on mounting mechanism, and driving mechanism is used to drive lead screw to overturn around connecting piece;Lead screw and steering wheel are all provided with multiple and one-to-one correspondence, and multiple lead screws are installed on mounting mechanism at equal angle;It has strong site adaptability, and stable work.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure distribution valve replacement, and in particular to a temporary fixing fixture for replacing the main pressure distribution valve of a speed governor. Background Technology

[0002] During the maintenance of the turbine speed control system, the main pressure distribution valve is a core control component. Its repair and replacement operations require extremely high safety and operational precision. Traditional maintenance methods usually use gantry cranes in conjunction with hand hoists for hoisting. However, due to the compact structure of the main pressure distribution valve and the tight fit between components, the initial friction during disassembly is large, requiring manual force to loosen it beforehand. This can easily cause the components to shake, posing a safety hazard. At the same time, gantry cranes are erected at high heights and occupy a large area, making operation in confined spaces inconvenient. Moreover, they often use single-point or double-point hoisting, which can lead to uneven force distribution and cause the valve body to tilt, affecting the protection of the sealing surface and the assembly precision. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this utility model provides a temporary fixing fixture for replacing the main pressure regulating valve of a speed governor.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model discloses a temporary fixing fixture for replacing the main pressure distribution valve of a speed governor, comprising:

[0006] The support mechanism is independently and fixedly installed, and an installation mechanism is provided on the support mechanism.

[0007] The lead screw is mounted on the mounting mechanism at one end and on the connector at the other end, with a guide wheel rotatably mounted on the connector;

[0008] An adjustment mechanism is mounted on a lead screw. A traction rope is installed on the adjustment mechanism. A hook is provided at the other end of the traction rope. The traction rope is slidably connected to the positioning groove of the guide wheel.

[0009] The steering wheel is rotatably mounted on the support mechanism, and the traction rope is rotatably connected to the steering wheel; the drive mechanism is mounted on the support mechanism and is used to drive the lead screw to rotate around the connecting piece.

[0010] Multiple lead screws and steering wheels are provided, and they correspond one-to-one. Multiple lead screws are installed at equal angles on the mounting mechanism.

[0011] Furthermore, the regulatory body includes:

[0012] A threaded tube is fitted onto a lead screw, and an anti-slip structure is provided on the outer wall of the threaded tube.

[0013] The fastener is rotatably mounted on the threaded pipe, and the traction rope is fixedly mounted on the fastener.

[0014] Furthermore, a positioning element is provided on the fixing component, and the positioning element is slidably connected to the guide groove on the lead screw.

[0015] Furthermore, the supporting institutions include:

[0016] The mounting platform has through slots at its corners, and multiple steering wheels are installed in each through slot of the mounting platform.

[0017] The support leg assembly is installed at the corner of the mounting platform.

[0018] Furthermore, the support leg assembly is equipped with casters.

[0019] Furthermore, the installation mechanism includes:

[0020] The assembly base is provided with multiple sets of mounting slots, and each mounting slot is rotatably mounted with a support shaft;

[0021] Multiple auxiliary components are fixedly installed on multiple support shafts, and the lead screw is fixedly installed on the auxiliary components.

[0022] Furthermore, the drive mechanism includes:

[0023] The drive shaft is rotatably mounted in the shaft hole of the mounting table, and a worm gear is coaxially mounted on the drive shaft;

[0024] Multiple worm gears are coaxially fixedly mounted on multiple support shafts, and the worm is meshed with the multiple worm gears;

[0025] The drive motor is mounted on the mounting platform, and the output end of the drive motor is connected to the drive shaft.

[0026] Furthermore, the drive motor and the controller are electrically connected, and the controller is mounted on the support leg assembly.

[0027] In the above technical solution, the temporary fixing fixture for replacing the main pressure distribution valve of the speed governor provided by this utility model has the following beneficial effects:

[0028] The support mechanism, as the basic load-bearing structure, provides a stable mounting base for components such as the installation mechanism and steering wheels, ensuring the overall stability of the tooling during operation. Multiple lead screws installed at equal angles on the installation mechanism, in conjunction with corresponding steering wheels, can lift the governor's main pressure valve from different angles using multiple sets of traction ropes. This prevents the component from tilting due to uneven force during lifting. A guide wheel, rotatably mounted at one end of the lead screw through a connector, works with the steering wheel to provide double guidance for the traction rope, ensuring smooth and unimpeded movement of the traction rope. The adjustment mechanism, installed on the lead screw, provides a stable preload to the traction rope, ensuring that the multiple traction ropes maintain stable tension throughout the governor replacement process. The drive mechanism, installed on the support mechanism, drives the lead screw to rotate around the connector, thereby achieving smooth lifting of the governor's main pressure valve through the displacement of the traction rope, improving the efficiency of the governor's main pressure valve replacement operation. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments will be briefly described below.

[0030] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the axonal structure of this utility model;

[0032] Figure 3 This is a top view of the structure of this utility model;

[0033] Figure 4 This is a partially enlarged structural schematic diagram of the present invention;

[0034] The following are labels in the attached diagram: 1. Support mechanism; 11. Mounting platform; 12. Support leg assembly; 13. Fuma wheel; 2. Mounting mechanism; 21. Assembly base; 22. Support shaft; 23. Auxiliary component; 4. Connecting component; 5. Guide wheel; 6. Adjustment mechanism; 61. Threaded pipe; 62. Fixing component; 63. Positioning component; 7. Traction rope; 8. Hook; 9. Steering wheel; 10. Drive mechanism; 101. Drive shaft; 102. Worm gear; 103. Worm wheel; 104. Drive motor; 105. Controller. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0036] like Figures 1 to 4 As shown;

[0037] A temporary fixing fixture for replacing the main pressure distribution valve of a speed governor according to an embodiment of this utility model includes:

[0038] Support mechanism 1 is the basic load-bearing structure of the entire tooling. It is independently and fixedly installed. Installation mechanism 2 is installed on support mechanism 1.

[0039] The lead screw 3 is mounted on the mounting mechanism 2 at one end and on the connector 4 at the other end. A guide wheel 5 is rotatably mounted on the connector 4.

[0040] Adjustment mechanism 6 is mounted on lead screw 3. A traction rope 7 is mounted on adjustment mechanism 6. A hook 8 is provided at the other end of traction rope 7. The traction rope 7 is slidably connected to the positioning groove of guide wheel 5.

[0041] Steering wheel 9 is rotatably mounted on support mechanism 1, and traction rope 7 is rotatably connected to steering wheel 9;

[0042] The drive mechanism 10 is mounted on the support mechanism 1. The drive mechanism 10 is used to drive the lead screw 3 to rotate around the connecting member 4.

[0043] Multiple lead screws 3 and steering wheels 9 are provided and correspond one-to-one. Multiple lead screws 3 are installed on the mounting mechanism 2 at equal angles.

[0044] By adopting the above technical solution, the support mechanism 1 serves as the basic load-bearing structure, providing a stable installation foundation for components such as the installation mechanism 2 and the steering wheel 9, ensuring the overall stability of the tooling during operation. Multiple lead screws 3 installed at equal angles on the installation mechanism 2, in conjunction with corresponding steering wheels 9, can lift the governor's main pressure valve from different angles using multiple sets of traction ropes 7, avoiding tilting of components due to uneven force during lifting. One end of the lead screw 3 is rotated and installed with a guide wheel 5 through a connector 4, which, in conjunction with the steering wheel 9, forms a double guide for the traction rope 7, ensuring smooth and unobstructed movement of the traction rope 7. The adjustment mechanism 6 is installed on the lead screw 3, providing a stable preload to the traction rope 7, ensuring that the multiple traction ropes 7 maintain stable tension throughout the governor replacement process. The drive mechanism 10 is installed on the support mechanism 1, driving the lead screw 3 to rotate around the connector 4, thereby achieving smooth lifting of the governor's main pressure valve through the displacement of the traction rope 7, improving the efficiency of the governor's main pressure valve replacement operation.

[0045] As a preferred embodiment of the above technical solution, such as Figures 1 to 4 As shown, the adjustment mechanism 6 includes:

[0046] The threaded tube 61 is fitted onto the lead screw 3, and the outer wall of the threaded tube 61 is provided with an anti-slip structure.

[0047] The fixing part 62 is rotatably mounted on the threaded pipe 61, and the traction rope 7 is fixedly mounted on the fixing part 62;

[0048] The fixing member 62 is provided with a positioning member 63, which is slidably connected to the guide groove on the lead screw 3;

[0049] In this embodiment, the threaded tube 61 is installed in conjunction with the lead screw 3. By rotating the threaded tube 61, it can move along the length of the lead screw 3, thereby adjusting the position of the fixing member 62 and achieving precise adjustment of the preload of the traction rope 7. The anti-slip structure on its outer wall increases the friction between the hand and the threaded tube 61, preventing slippage during adjustment. The traction rope 7 is fixedly installed on the fixing member 62 to ensure a stable connection. The positioning member 63 on the fixing member 62 is slidably connected to the guide groove on the lead screw 3, which can limit the movement direction of the fixing member 62, preventing rotational deviation when the threaded tube 61 drives the fixing member 62 to move, and ensuring that the fixing member 62 always moves smoothly along the axial direction of the lead screw 3.

[0050] As a preferred embodiment of the above technical solution, such as Figures 1 to 4 As shown, the support mechanism 1 includes:

[0051] The mounting platform 11 has through slots at its corners, and multiple steering wheels 9 are rotatably mounted in each through slot of the mounting platform 11.

[0052] Support leg assembly 12 is installed at the corner of mounting platform 11;

[0053] The support leg assembly 12 is equipped with a fuma wheel 13;

[0054] In this embodiment, the mounting platform 11 provides a stable bearing base for components such as the mounting mechanism 2 and the steering wheels 9. The through grooves at its corners provide precise installation positions for multiple steering wheels 9. The through groove structure does not obstruct the transmission between the traction rope 7 and the steering wheels 9, ensuring smooth displacement of the traction rope 7. The support leg assembly 12 at the corners of the mounting platform 11 can stably support the entire tooling and improve the overall structure's anti-overturning ability. The fuma wheel 13 installed on the support leg assembly 12 has both moving and fixing functions, making it easy to move the tooling to a suitable position flexibly according to the operation requirements. It can also keep the tooling fixed by locking the fuma wheel 13 during hoisting operations to prevent accidental movement from affecting operation safety.

[0055] As a preferred embodiment of the above technical solution, such as Figures 1 to 4 As shown, the installation mechanism 2 includes:

[0056] The assembly base 21 is provided with multiple sets of mounting slots, and a support shaft 22 is rotatably mounted in each mounting slot;

[0057] Multiple auxiliary components 23 are fixedly installed on multiple support shafts 22 respectively, and the lead screw 3 is fixedly installed on the auxiliary components 23;

[0058] In this embodiment, the assembly base 21 provides a stable rotating mounting base for the support shaft 22 through multiple sets of mounting slots. The auxiliary component 23 fixedly mounted on the support shaft 22 can firmly connect the lead screw 3 to the support shaft 22, thereby improving the reliability of the connection between the lead screw 3 and the support shaft 22.

[0059] As a preferred embodiment of the above technical solution, such as Figures 1 to 4 As shown, the drive mechanism 10 includes:

[0060] The drive shaft 101 is rotatably mounted in the shaft hole of the mounting platform 11, and a worm gear 102 is coaxially mounted on the drive shaft 101.

[0061] Multiple worm gears 103 are coaxially fixedly mounted on multiple support shafts 22, and the worm 102 is meshed with the multiple worm gears 103.

[0062] The drive motor 104 is mounted on the mounting platform 11, and the output end of the drive motor 104 is connected to the drive shaft 101.

[0063] The drive motor 104 is electrically connected to the controller 105, which is mounted on the support leg assembly 12.

[0064] In this embodiment, the drive shaft 101 is rotatably mounted at the shaft hole of the mounting platform 11. The worm gear 102 coaxially mounted thereon meshes with the worm wheels 103 on multiple support shafts 22. Only a single drive source is needed to drive multiple support shafts 22 to rotate synchronously, ensuring that the rotation angle of multiple sets of lead screws 3 is consistent, thereby making the displacement of multiple traction ropes 7 synchronous. The drive motor 104 is mounted on the mounting platform 11 and can provide continuous and stable rotational power to the drive shaft 101. The drive motor 104 is electrically connected to the controller 105 mounted on the support leg assembly 12. The operator can precisely control the start, stop and speed of the drive motor 104 through the controller 105, thereby adjusting the rotation speed and angle of the lead screws 3. At the same time, the meshing transmission between the worm gear 102 and the worm wheel 103 has a self-locking function, which can prevent the support shafts 22 from accidentally reversing due to external forces during the hoisting process, ensuring that the main pressure valve of the speed regulator is stable at any height.

[0065] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A temporary fixing fixture for replacing the main pressure distribution valve of a speed governor, characterized in that, include: A support mechanism (1) is independently and fixedly installed, and an installation mechanism (2) is provided on the support mechanism (1); A lead screw (3) is mounted on the mounting mechanism (2) at one end and a connector (4) is mounted on the other end. A guide wheel (5) is rotatably mounted on the connector (4). An adjustment mechanism (6) is installed on the lead screw (3). A traction rope (7) is installed on the adjustment mechanism (6). A hook (8) is provided at the other end of the traction rope (7). The traction rope (7) is slidably connected to the positioning groove of the guide wheel (5). A steering wheel (9) is rotatably mounted on the support mechanism (1), and the traction rope (7) is rotatably connected to the steering wheel (9). A drive mechanism (10) is mounted on the support mechanism (1). The drive mechanism (10) is used to drive the lead screw (3) to rotate around the connector (4). Multiple lead screws (3) and steering wheels (9) are provided and correspond one-to-one. Multiple lead screws (3) are installed on the mounting mechanism (2) at equal angles.

2. The temporary fixing fixture for replacing the main pressure regulating valve of the speed controller as described in claim 1, characterized in that, The adjustment mechanism (6) includes: A threaded tube (61) is fitted onto the lead screw (3), and an anti-slip structure is provided on the outer wall of the threaded tube (61). The fastener (62) is rotatably mounted on the threaded tube (61), and the traction rope (7) is fixedly mounted on the fastener (62).

3. The temporary fixing fixture for replacing the main pressure distribution valve of the speed controller as described in claim 2, characterized in that, The fixing member (62) is provided with a positioning member (63), and the positioning member (63) is slidably connected to the guide groove on the lead screw (3).

4. The temporary fixing fixture for replacing the main pressure regulating valve of the speed controller as described in claim 1, characterized in that, The support mechanism (1) includes: The mounting platform (11) has through slots at its corners, and multiple steering wheels (9) are rotatably mounted in each through slot of the mounting platform (11). The support leg assembly (12) is installed at the corner of the mounting platform (11).

5. The temporary fixing fixture for replacing the main pressure regulating valve of the speed controller as described in claim 4, characterized in that, The support leg assembly (12) is equipped with a fuma wheel (13).

6. The temporary fixing fixture for replacing the main pressure regulating valve of the speed controller as described in claim 4, characterized in that, The installation mechanism (2) includes: The assembly base (21) is provided with multiple sets of mounting slots, and each mounting slot is rotatably mounted with a support shaft (22); Multiple auxiliary components (23) are fixedly installed on multiple support shafts (22), and the lead screw (3) is fixedly installed on the auxiliary components (23).

7. The temporary fixing fixture for replacing the main pressure regulating valve of the speed controller as described in claim 6, characterized in that, The drive mechanism (10) includes: A drive shaft (101) is rotatably mounted in the shaft hole of the mounting platform (11), and a worm gear (102) is coaxially mounted on the drive shaft (101); Multiple worm gears (103) are coaxially fixedly mounted on multiple support shafts (22), and the worm (102) is meshed with the multiple worm gears (103); A drive motor (104) is mounted on the mounting platform (11), and the output end of the drive motor (104) is connected to the drive shaft (101).

8. The temporary fixing fixture for replacing the main pressure regulating valve of the speed controller as described in claim 7, characterized in that, The drive motor (104) is electrically connected to the controller (105), which is mounted on the support leg assembly (12).

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