Clamp for turbine cooling test

Abstract

The utility model discloses a clamp for a turbine cooling test, which belongs to the field of turbine test equipment and comprises a clamp table, a four-jaw chuck is slidably arranged at the center of the upper end of the clamp table, a plurality of clamps are circumferentially distributed on the periphery of the four-jaw chuck, and the clamps are fixedly arranged on sliding blocks. A sliding groove matched with the sliding block is formed in the clamp table. The clamp comprises a lug plate fixed above the sliding block, the lug plate is hinged to a clamp body through a hinge shaft, a clamping part is arranged at the end, close to the four-jaw chuck, of the clamp body, a hinge end is arranged at the top of the clamp body, the hinge end is hinged to a hinge connecting rod, and the other end of the hinge connecting rod is connected with an air cylinder. The clamp for the turbine cooling test is simple in structure, convenient to operate and capable of rapidly positioning and clamping a turbine.

Description

Technical Field

[0001] The utility model relates to the field of turbine test equipment, in particular to a fixture for turbine cooling test. Background Art

[0002] A turbine is a rotary power machine that converts the energy of a flowing working fluid into mechanical work. The existing turbine shell has a unique shape, and a special fixing fixture is required during the corresponding turbine shell cooling test to fix the turbine shell so as to facilitate the rapid and stable test of the turbine shell. Based on this, the utility model proposes a fixture for turbine cooling test. Utility Model Content

[0003] The utility model aims to provide a turbine cooling test fixture to solve the above-mentioned problems.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model discloses a fixture for turbine cooling test, comprising a fixture table, a four-jaw chuck is slidably arranged at the center position of the upper end of the fixture table, a plurality of fixtures are distributed on the circumference of the outer periphery of the four-jaw chuck, the fixture is fixedly arranged on a slider, and a slide groove matching with the slider is provided on the fixture table; the fixture comprises an ear plate fixed above the slider, the ear plate is hingedly connected to the fixture body through a hinge shaft, a clamping portion is arranged at one end of the fixture body close to the four-jaw chuck, a hinged end is arranged on the top of the fixture body, the hinged end is hingedly connected to a hinged connecting rod, and the other end of the hinged connecting rod is connected to a cylinder.

[0006] Furthermore, the clamping portion is a hook structure bent downward.

[0007] Furthermore, the cylinder is arranged on the sliding block through a cylinder mounting plate.

[0008] Furthermore, a plurality of limiting protrusions are distributed on the circumference of the side wall of the four-jaw chuck, and the limiting protrusions can be slidably arranged in the limiting sliding grooves on the central hole wall of the clamping table.

[0009] Furthermore, a telescopic mechanism mounting plate is provided at the bottom of the four-jaw chuck, and a telescopic mechanism is provided at the bottom of the telescopic mechanism mounting plate.

[0010] Furthermore, the telescopic mechanism adopts a hydraulic cylinder.

[0011] Compared with the prior art, the beneficial technical effects of the utility model are:

[0012] The utility model turbine cooling test fixture clamps the center hole of the turbine on the four-jaw chuck to quickly locate it, and clamps it with a plurality of clamps distributed around the circumference to keep it still, so as to facilitate the cooling test. In short, the utility model turbine cooling test fixture has a simple structure, is easy to operate, and can realize the rapid positioning and clamping of the turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the structure of the fixture for turbine cooling test of the utility model;

[0015] Figure 2 is the enlarged view of A;

[0016] Figure 3 This is the main view of the four-jaw chuck;

[0017] Figure 4 This is a top view of the fixture for turbine cooling test of the utility model;

[0018] Description of reference numerals: 1. fixture table; 2. four-jaw chuck; 3. limiting protrusion; 4. slider; 5. slide groove; 6. fixture; 7. cylinder; 8. cylinder mounting plate; 9. telescopic mechanism mounting plate; 10. telescopic mechanism;

[0019] 601, ear plate; 602, hinge shaft; 603, fixture body; 604, clamping part; 605, hinge end; 606, hinge connecting rod. DETAILED DESCRIPTION

[0020] like Figure 1-4 As shown, a fixture for turbine cooling test includes a fixture table 1, and a four-jaw chuck 2 is slidably mounted on the center position of the upper end of the fixture table 1. A plurality of limiting protrusions 3 are distributed circumferentially on the side wall of the four-jaw chuck 2, and the limiting protrusions 3 are slidably mounted in the limiting slide grooves on the center hole wall of the fixture table 1. A telescopic mechanism mounting plate 9 is mounted at the bottom of the four-jaw chuck 2, and a telescopic mechanism 10 is mounted at the bottom of the telescopic mechanism mounting plate 9. The telescopic mechanism 10 adopts a hydraulic cylinder or other telescopic and lifting mechanism, and the four-jaw chuck 2 is lifted and lowered to meet the needs of rapid positioning and fixing of turbines of different sizes.

[0021] A plurality of clamps 6 are distributed around the outer circumference of the four-jaw chuck 2, and the clamps 6 are fixedly mounted on the slider 4. The clamp table 1 is provided with a slide groove 5 that matches the slider 4. Specifically, the slider 4 can be moved automatically on the slide groove 5 through some driving mechanisms, and can be moved manually to facilitate clamping of turbines of different sizes. The specific moving method and moving distance are selected according to needs.

[0022] The clamp includes an ear plate 601 fixed above the slider 4, and the ear plate 601 is hingedly connected to the clamp body 603 through a hinge shaft 602. The clamp body 603 is provided with a clamping portion 604 at one end close to the four-jaw chuck 2, and the clamping portion 604 is a hook structure bent downward. A hinged end 605 is provided at the top of the clamp body 603, and the hinged end 605 is hingedly connected to a hinged connecting rod 606, and the other end of the hinged connecting rod 606 is connected to the cylinder 7.

[0023] The cylinder 7 is mounted on the slider 4 via a cylinder mounting plate 8 .

[0024] The action process of the utility model is as follows:

[0025] First, quickly position the turbine on the four-jaw chuck 2; then, start the cylinder 7, and the telescopic end of the cylinder 7 moves forward. According to the lever principle, under the action of the hinge shaft 605, the hook end of the clamping part 604 rests on the turbine to clamp the turbine, and a cooling test of the turbine shell is performed; finally, after the cooling test contact, start the cylinder 7 again, and the telescopic end retracts. Under the action of the hinge shaft 605, the clamping part 604 releases the restriction on the turbine, making it easy to remove the turbine.

[0026] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A fixture for turbine cooling test, characterized in that: The invention comprises a fixture table (1), wherein a four-jaw chuck (2) is slidably arranged at the center position of the upper end of the fixture table (1), and a plurality of fixtures (6) are distributed on the outer circumference of the four-jaw chuck (2), and the fixture (6) is fixedly arranged on a slider (4). The fixture table (1) is provided with a slide groove (5) that matches the slider (4); the fixture comprises an ear plate (601) fixed above the slider (4), and the ear plate (601) is hingedly connected to a fixture body (603) through a hinge shaft (602); a clamping portion (604) is arranged at one end of the fixture body (603) close to the four-jaw chuck (2), and a hinged end (605) is arranged at the top of the fixture body (603), and the hinged end (605) is hingedly connected to a hinge connecting rod (606), and the other end of the hinge connecting rod (606) is connected to a cylinder (7).

2. The turbine cooling test fixture according to claim 1, characterized in that: The clamping portion (604) is a hook structure that bends downward.

3. The turbine cooling test fixture according to claim 1, characterized in that: The cylinder (7) is arranged on the slider (4) via a cylinder mounting plate (8).

4. The turbine cooling test fixture according to claim 1, characterized in that: A plurality of limiting protrusions (3) are distributed circumferentially on the side wall of the four-jaw chuck (2), and the limiting protrusions (3) are slidably arranged in limiting sliding grooves on the central hole wall of the clamping table (1).

5. The turbine cooling test fixture according to claim 1, characterized in that: A telescopic mechanism mounting plate (9) is provided at the bottom of the four-jaw chuck (2), and a telescopic mechanism (10) is provided at the bottom of the telescopic mechanism mounting plate (9).

6. The turbine cooling test fixture according to claim 5, characterized in that: The telescopic mechanism (10) adopts a hydraulic cylinder.

Images