CN218017991U

CN218017991U - Steam turbine moving blade clamping device

Info

Publication number: CN218017991U
Application number: CN202221213245.9U
Authority: CN
Inventors: 高忠; 黄一江
Original assignee: Changzhou 3d Technology Complete Set Equipment Co ltd
Current assignee: Changzhou 3d Technology Complete Set Equipment Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-12-13
Anticipated expiration: 2032-05-20

Abstract

The utility model belongs to the technical field of steam turbine moving blade processing, especially, steam turbine moving blade clamping device now provides following scheme, including support and adjustment mechanism and two sets of fixture of setting on the support, fixture includes clamping part, first standing groove, second standing groove, first lead screw, first nut, first contact, second lead screw, second nut and second contact. The utility model discloses a set up first standing groove, the second standing groove, first contact and second contact, when needing processing leaf root end and leaf crown end, imbed the first standing groove on two sets of fixture in the middle section of the blade, and the first nut that rotates the clamping part both sides drives first lead screw and promotes first contact and support and fix on the blade middle section, corresponding adjustment is carried out according to the position of processing blade to the convenience, and the blade that can adapt to different length is fixed, reduce the recruitment cost of enterprise, and reduce clamping device occupation space.

Description

Steam turbine moving blade clamping device

The technical field is as follows:

the utility model relates to a steam turbine moving blade processing technology field especially relates to a steam turbine moving blade clamping device.

Background art:

the steam turbine is also called as a steam turbine engine, and is a rotary steam power device.A high-temperature high-pressure steam passes through a fixed nozzle to become an accelerated airflow and then is sprayed onto blades, so that a rotor provided with blade rows rotates and does work outwards. A steam turbine is an external combustion rotary machine that can convert steam heat energy into mechanical work. After steam from a boiler enters a steam turbine, the steam passes through a series of annularly arranged nozzles and movable blades in sequence, and heat energy of the steam is converted into mechanical energy for rotating a rotor of the steam turbine.

The existing fixture tool for processing the blade root end surface, the blade shroud end surface and the blade inclined surface of the turbine blade is separately and respectively arranged, corresponding clamping devices are used according to different blades, the production cost of enterprises is increased, and more working space is occupied.

The utility model has the following contents:

the utility model aims at prior art's defect, provide a steam turbine moving blade clamping device for solve and use corresponding clamping device according to the difference of blade, increase the manufacturing cost of enterprise, and occupy more workspace's problem.

A clamping device for a moving blade of a steam turbine comprises a support, and an adjusting mechanism and two groups of clamping mechanisms which are arranged on the support, wherein each clamping mechanism comprises a clamping part, a first placing groove, a second placing groove, a first screw rod, a first nut, a first contact head, a second screw rod, a second nut and a second contact head, the first placing groove and the second placing groove are formed in opposite edges of the clamping part, the first screw rod is embedded into the clamping part through two sides of the first placing groove, the first nut is rotatably connected to one side of the outer wall of the first screw rod and extends out of the clamping part, the first contact head is fixedly installed at one end of the first screw rod, the second screw rod is embedded into the clamping part through two sides of the second placing groove, the second nut is rotatably connected to one side of the outer wall of the second screw rod and extends out of the clamping part, and the second contact head is rotatably connected to one end of the second screw rod.

The adjusting mechanism is arranged on one side of one group of clamping mechanisms and comprises a screw rod, a positioning block and a bearing, the screw rod is rotatably connected with a bottom plate at the bottom of the clamping mechanism through the bearing, the positioning block is fixedly arranged on the support and sleeved on the outer wall of the screw rod, and the screw rod can push and pull the bottom plate to slide in a sliding groove on the support by rotating.

In order to carry out spacingly to the clamping part, still include the support frame, the upper end of support frame rotates and is connected with the gag lever post, the bottom of gag lever post rotates and connects spacing head, spacing head is the cuboid structure.

In order to facilitate clamping of the blade, the first screw rods, the first nuts and the first contacts are arranged in four groups, the four groups of first screw rods, the four groups of first nuts and the four groups of first contacts are arranged in pairs relative to the first placing grooves, and the two groups of first screw rods, the two groups of first nuts and the two groups of first contacts which are arranged in pairs are respectively arranged on two end faces of the clamping portion and are not at the same height.

In order to facilitate clamping of different positions of the blade, the clamping portion is rotatably mounted on the supporting frame through a rotating shaft.

The utility model discloses steam turbine moving blade clamping device's beneficial effect is:

1. the middle section of the blade is processed by arranging a first placing groove, a second placing groove, a first contact and a second contact, two ends of the blade to be processed are respectively and correspondingly placed in the second placing grooves on the clamping parts of the two groups of clamping mechanisms, and a second nut is rotated to drive a second lead screw to push the second contact to extrude towards the blade;

2. through setting up gag lever post and spacing head, rotate the gag lever post and drive spacing head downstream, through the upset of spacing head restriction clamping part, thereby can locate to process the blade middle section, conveniently fix a position after the clamping part adjustment.

Description of the drawings:

FIG. 1 is a front view of a steam turbine moving blade clamping device according to the present invention;

FIG. 2 is a schematic view of the clamping mechanism of the clamping device for the moving blade of the steam turbine according to the present invention;

fig. 3 is a top view of the steam turbine moving blade clamping device provided by the present invention.

In the figure: 1. a support; 2. a support frame; 3. a clamping part; 4. a first placing groove; 5. a second placing groove; 6. A first lead screw; 7. a first nut; 8. a first contact; 9. a second screw rod; 10. a second nut; 11. A second contact; 12. a limiting rod; 13. a limiting head; 14. a base plate; 15. a rotating shaft; 16. a screw; 17. positioning blocks; 18. and a bearing.

The specific implementation mode is as follows:

the following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined.

Referring to fig. 1-3, a steam turbine moving blade clamping device, including a support 1, and an adjusting mechanism and two sets of clamping mechanisms disposed on the support 1, the clamping mechanism includes a clamping portion 3, a first placing groove 4, a second placing groove 5, a first lead screw 6, a first nut 7, a first contact 8, a second lead screw 9, a second nut 10, and a second contact 11, the first placing groove 4 and the second placing groove 5 are disposed at opposite edges of the clamping portion 3, the first lead screw 6 is embedded into the clamping portion 3 through two sides of the first placing groove 4, the first nut 7 is rotatably connected to one side of an outer wall of the first lead screw 6 to extend out of the clamping portion 3, the clamping portion 3 is rotatably mounted on a support frame 2 through a rotating shaft 15, the clamping portion 3 can be turned over, different positions of a blade are clamped, the first contact 8 is fixedly mounted at one end of the first lead screw 6, the first nut 7 and the first contact 8 are four sets, and the first lead screw 6, the first contact 7 and the second contact 8 are disposed at two opposite ends of the first lead screw 6, and the first contact 8 are disposed at different heights, and the clamping nut 7 is disposed at the same center position, and the clamping portion of the first lead screw 6, and the contact 8 are disposed at different heights of the first lead screw. The second screw rod 9 is embedded into the clamping portion 3 through two sides of the second placing groove 5, the second nut 10 is rotatably connected to one side of the outer wall of the second screw rod 9 and extends out of the clamping portion 3, the second contact head 11 is rotatably connected to one end of the second screw rod 9, notches are formed in two sides of the second placing groove 5, the second contact head 11 can be retracted into the clamping portion 3, and blades can be conveniently placed.

The adjusting mechanism is arranged on one side of one group of clamping mechanisms and comprises a screw rod 16, a positioning block 17 and a bearing 18, the screw rod 16 is rotatably connected with the bottom plate 14 at the bottom of the clamping mechanism through the bearing 18, the positioning block 17 is fixedly arranged on the support 1 and sleeved on the outer wall of the screw rod 16, and the screw rod 16 can be rotated to push and pull the bottom plate 14 to slide in a sliding groove on the support 1.

Still include support frame 2, the upper end of support frame 2 rotates and is connected with gag lever post 12, and the bottom of gag lever post 12 rotates and is connected with spacing head 13, and spacing head 13 is the cuboid structure, and gag lever post 12 is preferred the lead screw, and gag lever post 12 bottom is passed through the bearing and is connected with spacing head 13 rotation, can be when gag lever post 12 rotates, and spacing head 13 can laminate 3 downstream of clamping part to carry on spacingly to clamping part 3.

The working principle is as follows: when the device is used, an external power supply is firstly connected to the device, then the blade can be clamped as required, when the middle section of the blade is processed, the root end and the tip shroud end of the blade are required to be correspondingly fixed, the clamping part 3 is overturned on the support frame 2 only through the first nut 7, the second placing groove 5 is upwards, then the screw 16 is rotated to push and pull the fixed clamping mechanism to a proper position through the bottom plate 14, and then the blade is stopped, then the two ends of the blade to be processed are respectively and correspondingly placed in the second placing grooves 5 on the clamping parts 3 of the two clamping mechanisms, the second nut 10 is rotated to drive the second screw 9 to push the second contact head 11 to extrude the blade, so that the two clamping mechanisms respectively abut and fix the root end and the tip shroud end of the blade, then the limiting rod 12 is rotated to drive the limiting head 13 to move downwards, through the upset of spacing head 13 restriction clamping part 3, thereby can locate to process the blade middle section, when needing processing blade root end and leaf crown end, rotate screw rod 16 according to above-mentioned operation and push and pull its a set of fixture of fixing mutually and stop to suitable position department, through axis of rotation 15 upset clamping part 3, make first standing groove 4 up, imbed the blade middle section in the first standing groove 4 on two sets of clamping mechanism, and rotate the first nut 7 of clamping part 3 both sides and drive first lead screw 6 and promote first contact 8 and support and lean on and fix on the blade middle section, and according to above-mentioned operation, rotate gag lever post 12 and promote spacing head 13 and restrict the upset to clamping part 3, thereby carry out corresponding processing to blade root end and leaf crown end, when being convenient for fixed the blade, can carry out corresponding adjustment according to the length difference of blade.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a turbine moving blade clamping device, includes support (1) and sets up adjustment mechanism and two sets of fixture on support (1), its characterized in that: the clamping mechanism comprises a clamping part (3), a first placing groove (4), a second placing groove (5), a first screw rod (6), a first nut (7), a first contact head (8), a second screw rod (9), a second nut (10) and a second contact head (11), wherein the first placing groove (4) and the second placing groove (5) are arranged at opposite edges of the clamping part (3), the first screw rod (6) is embedded into the clamping part (3) through two sides of the first placing groove (4), the first nut (7) is rotatably connected to the outer wall of the first screw rod (6) and extends out of the clamping part (3) from one side of the outer wall, the first contact head (8) is fixedly installed at one end of the first screw rod (6), the second screw rod (9) is embedded into the clamping part (3) through two sides of the second placing groove (5), the second nut (10) is rotatably connected to the outer wall of the second screw rod (9) and extends out of the second contact head (11);

the adjusting mechanism is arranged on one side of one group of clamping mechanisms and comprises a screw rod (16), a positioning block (17) and a bearing (18), the screw rod (16) is rotatably connected with a bottom plate (14) at the bottom of the clamping mechanism through the bearing (18), the positioning block (17) is fixedly arranged on the support (1) and sleeved on the outer wall of the screw rod (16), and the screw rod (16) can be rotated to push and pull the sliding groove of the bottom plate (14) to slide on the support (1).

2. The steam turbine moving blade clamping device as set forth in claim 1, wherein: still include support frame (2), the upper end of support frame (2) rotates and is connected with gag lever post (12), the bottom of gag lever post (12) is rotated and is connected spacing head (13), spacing head (13) are the cuboid structure.

3. The steam turbine moving blade clamping device as set forth in claim 1, wherein: the first screw rods (6), the first nuts (7) and the first contact heads (8) are arranged in four groups, the four groups of first screw rods (6), the four groups of first nuts (7) and the four groups of first contact heads (8) are arranged in pairs relative to the first placing grooves (4), and the two groups of first screw rods (6), the two groups of first nuts (7) and the two groups of first contact heads (8) which are arranged in pairs are respectively arranged on two end faces of the clamping part (3) and are not at the same height.

4. The steam turbine moving blade clamping device as set forth in claim 2, wherein: the clamping part (3) is rotatably arranged on the support frame (2) through a rotating shaft (15).