Auxiliary supporting device for steam turbine blade installation

Abstract

The utility model relates to the technical field of steam turbine blade production, in particular to an auxiliary supporting device for steam turbine blade installation, which comprises a movable seat, a guide seat, a hydraulic cylinder, an ejector rod, a guide block, a rotating pipe, a guide pipe, a control mechanism and a blade. The hydraulic cylinder is installed on the upper surface of the moving seat, the ejector rod is fixed to the telescopic end of the hydraulic cylinder, the guide block is fixedly arranged on the surface of the ejector rod, the rotating pipe is movably connected with the end of the ejector rod, and the guide pipe is fixedly arranged at the top end of the rotating pipe. According to the auxiliary supporting device for turbine blade installation, the distance between the supporting rods can be adjusted according to the blade root size of the end of a blade, it is guaranteed that the blade is effectively supported and lifted, the height and angle of the blade are adjusted according to the position of an impeller surface inserting groove, and the blade root of the end of the blade is conveniently clamped into an impeller surface clamping groove; therefore, the effect of quick installation is achieved, manpower is effectively saved, and production is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to steam turbine blade production technical field especially, relates to a steam turbine blade installation is with auxiliary support device. BACKGROUND

[0002] The main function of steam turbine blade is to convert the kinetic energy of steam into mechanical energy. In impulse steam turbine, the kinetic energy of steam is converted into mechanical energy on the rotor by the impulsive force of steam jet from nozzle. In reaction steam turbine, in addition to the impulsive force of high speed steam jet from nozzle, the steam expands in the blade, which increases the steam speed at the outlet of blade and generates reaction force on the blade, thus converting the heat energy of steam into mechanical energy.

[0003] After the steam turbine blade is processed, it needs to be fixed and installed on the outside of the impeller. The blade root at the end of the blade is connected with the impeller. During installation, the blade needs to be lifted and the blade root at the end of the blade is clamped into the clamping groove on the surface of the impeller. The existing installation method is to lift the blade manually after the impeller is installed. The weight of the blade is heavy, and it is very inconvenient for workers to carry and install. Therefore, an auxiliary support guide device is needed to facilitate installation. SUMMARY

[0004] The utility model discloses a steam turbine blade installation is with auxiliary support device.

[0005] The utility model is realized through the following technical schemes:

[0006] A steam turbine blade installation is with auxiliary support device, including mobile seat, guide seat, hydraulic cylinder, top rod, guide block, rotating pipe, guide pipe, control mechanism and blade, the guide seat is fixedly arranged in the mobile seat top one end, the hydraulic cylinder is installed on the upper surface of mobile seat, the top rod is fixed with the telescopic end of hydraulic cylinder, the guide block is fixedly arranged on the surface of top rod, the rotating pipe is movably connected with the end of top rod, the guide pipe is fixedly arranged on the top of rotating pipe, the control mechanism is clamped in the inside of guide pipe, the blade is clamped in one end of control mechanism, the control mechanism includes installation shell, telescopic rod, guide rod, support rod, spring, adjusting rod, adjusting clamp block and screw rod, the telescopic rod is fixedly arranged in the tail end of installation shell, the guide rod is fixedly arranged in the inner side of installation shell, the support rod and the spring are sleeved on the surface of guide rod, the adjusting rod is fixedly arranged with the surface of one end of support rod, the adjusting clamp block is clamped in the outside of adjusting rod, the screw rod is fixedly arranged in the inside of adjusting clamp block.

[0007] In the preferable embodiment of the utility model, the surface of the guide rod is sleeved with two support rods, the spring is arranged between the two support rods, one adjusting clamp block is arranged on the outer side of one end of the two support rods, the screw rod is fixed in the inner side of one adjusting clamp block, the end thereof extends to the outer side of the other adjusting clamp block, and the surface of the screw rod is provided with a limiting nut;

[0008] The distance between the two adjusting clamp blocks is controlled by adjusting the limiting nut, thereby the distance between the support rods is controlled, and the effective clamping of the blade is ensured.

[0009] In the preferable embodiment of the utility model, the top of the mounting shell is provided with a waist-shaped hole matched with the adjusting rod, and the side surface of the mounting shell is provided with a waist-shaped hole matched with the support rod.

[0010] The waist-shaped hole at the top of the mounting shell provides sufficient space for the adjustment of the adjusting rod, and the waist-shaped hole at the side surface provides space for the adjustment of the support rod.

[0011] In the preferable embodiment of the utility model, the inner side of the guide seat is vertically provided with a guide groove, and the two ends of the guide block are provided with guide insertion strips matched therewith.

[0012] In the preferable embodiment of the utility model, the telescopic rod is clamped in the guide pipe, one end of the telescopic rod is fixed with a limiting counterweight block, and the outer side of the limiting counterweight block at the end of the telescopic rod is fixedly provided with a handle.

[0013] The handle can effectively control the sliding of the telescopic rod in the guide pipe, thereby effectively adjusting the position of the clamped blade, and facilitating the installation of the blade.

[0014] In the preferable embodiment of the utility model, the inner side of the adjusting clamp block is provided with a clamping groove matched with the adjusting rod.

[0015] The utility model has the advantages of:

[0016] The auxiliary supporting device for the installation of the steam turbine blade can adjust the distance between the support rods according to the size of the blade end root, ensure the effective support and lifting of the blade, adjust the height and angle of the blade according to the position of the surface slot of the impeller, facilitate the clamping of the blade end root into the surface slot of the impeller, and have the effect of rapid installation, effectively save manpower, and facilitate production. DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the auxiliary supporting device for the installation of the steam turbine blade of the utility model;

[0018] Figure 2 It is a control mechanism installation structure schematic view of the auxiliary supporting device for the installation of the steam turbine blade of the utility model;

[0019] Figure 3 It is the control mechanism internal structure schematic view of the auxiliary supporting device for steam turbine blade installation of the utility model.

[0020] Figure 4 It is the control mechanism internal structure schematic view of the auxiliary supporting device for steam turbine blade installation of the utility model.

[0021] In the drawing: 1, mobile seat; 2, guide seat; 3, hydraulic cylinder; 4, ejector rod; 5, guide block; 6, rotating pipe; 7, guide pipe; 8, control mechanism; 81, installation shell; 82, telescopic rod; 83, guide rod; 84, support rod; 85, spring; 86, adjusting rod; 87, adjusting clamp block; 88, screw rod; 9, blade. DETAILED DESCRIPTION

[0022] The preferred embodiments of the utility model are described in detail below with reference to the drawings, so that the advantages and features of the utility model can be more easily understood by the person skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined. The directions mentioned in the utility model, such as "up", "down", "front", "back", "left", "right", "top" and "bottom", are only the directions of the attached drawings. Therefore, the directions used are used to explain and understand the utility model, not to limit the utility model.

[0023] As Figures 1-4 shown in the drawing, an auxiliary supporting device for steam turbine blade installation includes mobile seat 1, guide seat 2, hydraulic cylinder 3, ejector rod 4, guide block 5, rotating pipe 6, guide pipe 7, control mechanism 8 and blade 9, guide seat 2 is fixedly arranged at one end of the top of mobile seat 1, hydraulic cylinder 3 is installed on the upper surface of mobile seat 1, ejector rod 4 is fixed with the telescopic end of hydraulic cylinder 3, guide block 5 is fixedly arranged on the surface of ejector rod 4, rotating pipe 6 is movably connected with the end of ejector rod 4, guide pipe 7 is fixedly arranged at the top end of rotating pipe 6, control mechanism 8 is clamped inside guide pipe 7, blade 9 is clamped at one end of control mechanism 8, control mechanism 8 includes installation shell 81, telescopic rod 82, guide rod 83, support rod 84, spring 85, adjusting rod 86, adjusting clamp block 87 and screw rod 88, telescopic rod 82 is fixedly arranged at the tail end of installation shell 81, guide rod 83 is fixedly arranged inside installation shell 81, support rod 84 and spring 85 are sleeved on the surface of guide rod 83, adjusting rod 86 is fixedly arranged on the surface of one end of support rod 84, adjusting clamp block 87 is clamped outside adjusting rod 86, and screw rod 88 is fixedly arranged inside adjusting clamp block 87.

[0024] Specifically, the guide rod 83 is sleeved with two support rods 84, a spring 85 is arranged between the two support rods 84, one end of the two support rods 84 is provided with an adjusting clamping block 87 outside the adjusting rod 86, a screw rod 88 is fixed to the inside of one adjusting clamping block 87, the end of the screw rod 88 penetrates and extends to the outside of the other adjusting clamping block 87, the surface of the screw rod 88 is provided with a limiting nut, the top of the mounting shell 81 is provided with a waist-shaped hole matched with the adjusting rod 86, the side of the mounting shell 81 is provided with a waist-shaped hole matched with the support rod 84, the inside of the guide seat 2 is vertically provided with a guide groove, the two ends of the guide block 5 are provided with guide insertion strips matched with the guide block 5, the telescopic rod 82 is clamped in the guide pipe 7, one end of the telescopic rod 82 is fixed with a limiting counterweight, the outside of the end limiting counterweight of the telescopic rod 82 is fixedly provided with a handle, and the inside of the adjusting clamping block 87 is provided with a clamping groove matched with the adjusting rod 86.

[0025] In the embodiment, the tail of the guide seat 2 is fixedly provided with a push rod, the bottom of the moving seat 1 is provided with a universal wheel, the push rod is pushed, the universal wheel at the bottom of the moving seat 1 facilitates the movement of the whole device, the device is moved to the bottom of the installation frame of the moving blade 9, the hydraulic cylinder 3 is controlled to rise, the control mechanism 8 is controlled to rise under the guidance of the guide block 5, the support rod 84 is clamped at the bottom of the blade root, then the distance between the support rods 84 is adjusted according to the size of the blade root, the distance between the support rods 84 is adjusted by rotating the limiting nut on the surface of the screw rod 88, the adjusting clamping block 87 is controlled to extrude the adjusting rod 86, and the distance between the support rods 84 is adjusted, and the support rods 84 are automatically opened under the action of the spring 85 after the limiting nut is loosened.

[0026] Further, after the distance between the support rods 84 is adjusted to effectively limit the blade root of the blade 9, the hydraulic cylinder 3 is further adjusted to extend, the blade 9 is lifted, the moving seat 1 is adjusted to the appropriate position by pushing the push rod, the hydraulic cylinder 3 is adjusted to the appropriate height, the handle at the end of the telescopic rod 82 is held, the rotating pipe 6 is controlled to rotate and adjust the angle at the top of the top rod 4, and the telescopic rod 82 can be pushed and pulled in the guide pipe 7, so that the blade root of the blade 9 is clamped in the slot outside the impeller, and the rapid installation work is realized.

[0027] It should be noted that the parts not involved in the utility model are the same as or can be realized by the prior art; various drives in the utility model can be realized by corresponding power structures such as cylinders, oil cylinders, electric cylinders, motors, connecting rods and guide rods, and are not limited to the description in the specification and the structure in the drawings.

[0028] In the description of the embodiments of the present application, unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting", "setting", "provided with" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] The above-described embodiments only express several embodiments of the present application, which are described in detail and in detail, but should not be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A kind of auxiliary support device for steam turbine blade installation, including mobile seat (1), guide seat (2), hydraulic cylinder (3), top rod (4), guide block (5), rotating tube (6), guide tube (7), control mechanism (8) and blade (9), it is characterized by: The guide seat (2) is fixedly arranged at one end of the top of the moving seat (1), the hydraulic cylinder (3) is installed on the upper surface of the moving seat (1), the top rod (4) is fixed at the telescopic end of the hydraulic cylinder (3), the guide block (5) is fixedly arranged on the surface of the top rod (4), the rotating pipe (6) is movably connected with the end of the top rod (4), the guide pipe (7) is fixedly arranged at the top end of the rotating pipe (6), the control mechanism (8) is clamped in the guide pipe (7), and the blade (9) is clamped at one end of the control mechanism (8). The control mechanism (8) comprises a mounting shell (81), a telescopic rod (82), a guide rod (83), a supporting rod (84), a spring (85), an adjusting rod (86), an adjusting clamp block (87) and a screw rod (88), the telescopic rod (82) is fixedly arranged at the tail end of the mounting shell (81), the guide rod (83) is fixedly arranged on the inner side of the mounting shell (81), the supporting rod (84) and the spring (85) are sleeved on the surface of the guide rod (83), the adjusting rod (86) is fixedly arranged on the surface of one end of the supporting rod (84), the adjusting clamp block (87) is clamped outside the adjusting rod (86), and the screw rod (88) is fixedly arranged on the inner side of the adjusting clamp block (87).

2. The auxiliary support device for the installation of a turbine blade according to claim 1, characterized in that: The surface of the guide rod (83) is sleeved with two supporting rods (84), the spring (85) is arranged between the two supporting rods (84), one adjusting clamp block (87) is arranged on the outer side of one end of each of the two supporting rods (84), the screw rod (88) is fixed on the inner side of one adjusting clamp block (87) and extends to the outer side of the other adjusting clamp block (87), and the surface of the screw rod (88) is provided with a limiting nut.

3. The auxiliary support device for the installation of a turbine blade according to claim 1, characterized in that: The top of the mounting shell (81) is provided with a waist-shaped hole matched with the adjusting rod (86), and the side surface of the mounting shell (81) is provided with a waist-shaped hole matched with the supporting rod (84).

4. The auxiliary support device for the installation of a turbine blade according to claim 1, characterized in that: The inner side of the guide seat (2) is vertically provided with a guide groove, and the two ends of the guide block (5) are provided with guide insertion strips matched therewith.

5. The auxiliary support device for turbine blade installation according to claim 1, characterized by: The telescopic rod (82) is clamped in the guide pipe (7), one end of the telescopic rod (82) is fixedly provided with a limiting counterweight block, and the outer side of the end limiting counterweight block of the telescopic rod (82) is fixedly provided with a handle.

6. The auxiliary support device for the installation of a turbine blade according to claim 1, characterized in that: The inner side of the adjusting clamp block (87) is provided with a clamping groove matched with the adjusting rod (86).

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