A processing tool for a split-face light hole expansion groove in a combustion engine cylinder

Abstract

The utility model relates to a kind of processing tools of gas turbine cylinder middle split surface light hole expansion groove, belong to the technical field of machining.The problem of high processing cost of gas turbine cylinder middle split surface light hole expansion groove is solved.The utility model includes base, column, guide rail, rack, platform, feed handle and grinding wheel cutting machine, the bottom end of column is connected with base;The front side of column is connected with track and rack;Platform is slidably connected with guide rail;Grinding wheel cutting machine is installed on platform;Gear is provided in platform, and gear is engaged with rack;Feed handle is connected with gear, and the up-and-down movement of platform can be controlled by operating feed handle, and then drive grinding wheel cutting machine to carry out light hole expansion groove processing to gas turbine cylinder middle split surface.

Description

Technical Field

[0001] This utility model relates to the technical field of machining, and in particular to a tool for machining expansion grooves in the split surface of a gas turbine cylinder. Background Technology

[0002] Gas turbines possess advantages such as high thermal efficiency, rapid start-up, and low emissions. my country is vigorously developing gas turbines. Due to their high thermal efficiency and rapid start-up characteristics, a 2-4 mm wide expansion groove is cut into the axial outer wall of the upper split surface of the gas turbine cylinder to meet the requirements of rapid temperature rise. However, the gas turbine cylinder has a complex shape and a thick split surface, making it impossible to machine the expansion groove of some split surface holes using traditional cutting tools, as the tools cannot reach the machining area. In such cases, special machining methods such as waterjet cutting and laser machining are necessary. These machining methods require large initial investments and have low processing efficiency; therefore, developing inexpensive and highly efficient specialized tools is of great significance. Utility Model Content

[0003] To address the problem of high processing costs for the expansion groove of the split surface in a gas turbine cylinder, the purpose of this utility model is to provide a processing tool for the expansion groove of the split surface in a gas turbine cylinder.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A tool for machining expansion grooves in split-face holes of a gas turbine cylinder includes: a base 1, a column 2, guide rails 3, a platform 4, and an abrasive wheel cutter 5. The bottom end of the column 2 is connected to the base 1. Two guide rails 3 are symmetrically arranged on the left and right sides of the front side of the column 2, and the two guide rails 3 extend along the height direction of the column 2. The platform 4 is slidably connected to the two guide rails 3. The abrasive wheel cutter 5 is mounted on the platform 4.

[0006] Furthermore, a rack 6 is also connected to the front side of the column 2. The rack 6 is located between the two guide rails 3 and is parallel to the two guide rails 3.

[0007] The platform 4 includes a platform body 41, a first rotating shaft 42, and a gear 43. The first rotating shaft 42 is rotatably mounted on the platform body 41 and passes through the left and right sides of the platform body 41. The gear 43 is mounted on the first rotating shaft 42 and meshes with the rack 6.

[0008] Furthermore, it also includes a feed handle 7, which is mounted on one end of the first rotating shaft 42.

[0009] Furthermore, the platform body 41 has two parallel sliding grooves on its rear side; the two sliding grooves are respectively matched with the two guide rails 3.

[0010] Furthermore, both guide rails 3 are T-shaped guide rails.

[0011] Furthermore, the abrasive wheel cutting machine 5 includes a bracket 51, a motor 52, a second rotating shaft 53, a belt 54, an abrasive wheel 55, and screws 56. The bracket 51 is mounted on the top side of the platform 4 by a plurality of screws 56. The motor 52 is mounted on the bracket 51. The front end of the bracket 51 is provided with a through channel running from left to right, and the second rotating shaft 53 is rotatably mounted in the channel by bearings. The power output end of the motor 52 is connected to one end of the second rotating shaft 53 by a belt 54, and the abrasive wheel 55 is mounted on the other end of the second rotating shaft 53.

[0012] Because this utility model employs the aforementioned technology, it has the following positive effects compared to existing technologies:

[0013] (1) This utility model includes a base, a column, a guide rail, a rack, a platform, a feed handle, and an abrasive wheel cutter. The bottom end of the column is connected to the base, and the front side of the column is connected to the rail and the rack. The platform is slidably connected to the guide rail. The abrasive wheel cutter is installed on the platform, and a gear is provided inside the platform. The gear meshes with the rack. By operating the feed handle, the up and down movement of the platform can be controlled, thereby providing the abrasive wheel cutter with a travel track that can move up and down, thus facilitating the processing of the expansion groove of the bore hole on the split surface of the gas turbine cylinder. Compared with the prior art, this utility model has the advantages of simple operation, accurate positioning, and low cost. Attached Figure Description

[0014] Figure 1 This is a side view of a tool for machining expansion grooves in the split surface of a gas turbine cylinder according to this utility model;

[0015] Figure 2 yes Figure 1 A magnified view of point A;

[0016] In the attached diagram: 1. Base; 2. Column; 3. Guide rail; 4. Platform; 41. Platform body; 42. First rotating shaft; 43. Gear; 5. Abrasive wheel cutter; 51. Bracket; 52. Motor; 53. Second rotating shaft; 54. Belt; 55. Abrasive wheel; 56. Screw; 6. Rack; 7. Feed handle. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely illustrative and not intended to limit the scope of the present utility model. Furthermore, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concept of the present utility model.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can be a mechanical connection or an electrical connection; they can be a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] Please refer to Figures 1 to 2 As shown, a tool for machining expansion grooves in the split surface of a gas turbine cylinder is illustrated. The tool includes a base 1, a column 2, guide rails 3, a platform 4, and an abrasive wheel cutter 5. The bottom end of the column 2 is connected to the base 1. Two guide rails 3 are symmetrically arranged on the left and right sides of the front side of the column 2, and the two guide rails 3 extend along the height direction of the column 2. The platform 4 is slidably connected to the two guide rails 3. The abrasive wheel cutter 5 is mounted on the platform 4.

[0020] Furthermore, in a preferred embodiment, the bottom end of the column 2 is connected to the top surface of the base 1 by welding.

[0021] Furthermore, in a preferred embodiment, both guide rails 3 and the column 2 are connected by welding.

[0022] In another preferred embodiment, a mounting plate is provided at the bottom of the column 2. The mounting plate is perpendicular to the column 2 and is connected to the top surface of the base 1 by bolts.

[0023] Furthermore, in a preferred embodiment, a rack 6 is also connected to the front side of the column 2. The rack 6 is located between the two guide rails 3 and is parallel to the two guide rails 3.

[0024] Furthermore, in a preferred embodiment, the rack 6 and the column 2 are connected by welding.

[0025] Platform 4 includes platform body 41, first rotating shaft 42 and gear 43. The first rotating shaft 42 is rotatably mounted on platform body 41 and passes through the left and right sides of platform body 41. Gear 43 is mounted on the first rotating shaft 42 and is located in the middle of the first rotating shaft 42. The axis of gear 43 coincides with the axis of the first rotating shaft 42 and gear 43 meshes with rack 6.

[0026] Furthermore, in a preferred embodiment, the body 41 has a mounting groove with the opening of the mounting groove facing the rack 6; the gear 43 is placed in the mounting groove, and the rack 6 extends to the outside of the mounting groove to mesh with the gear 43.

[0027] Furthermore, in a preferred embodiment, a feed handle 7 is also included, which is mounted on one end of the first rotating shaft 42; the feed handle 7 is perpendicular to the first rotating shaft 42. When the feed handle 7 is rotated, the first rotating shaft 42 and the gear 43 can be driven to rotate synchronously. Since the gear 43 meshes with the rack 6, when the gear 43 rotates, the platform 4 can move along the height direction of the rack 6, thereby driving the abrasive wheel cutting machine 5 to move up and down.

[0028] Furthermore, in a preferred embodiment, the feed handle 7 is integrally connected to one end of the first rotating shaft 42.

[0029] In another preferred embodiment, one end of the first rotating shaft 42 has a threaded hole in its radial direction, and one end of the feed handle 7 is threadedly connected to the threaded hole.

[0030] Furthermore, in a preferred embodiment, the rear side of the platform body 41 is provided with two parallel sliding grooves; the two sliding grooves are respectively matched with two guide rails 3.

[0031] Furthermore, in a preferred embodiment, both guide rails 3 are T-shaped guide rails, and the two T-shaped guide rails are respectively placed in two slide grooves. The platform 4 is mounted on the two guide rails 3 arranged symmetrically on the left and right. This symmetrical guide rail structure can effectively suppress the lateral displacement caused by the working vibration of the abrasive wheel cutting machine 5, thereby significantly improving the stability of the abrasive wheel cutting machine 5 during the processing.

[0032] Furthermore, in a preferred embodiment, the abrasive wheel cutting machine 5 includes a bracket 51, a motor 52, a second rotating shaft 53, a belt 54, an abrasive wheel 55, and screws 56. The bracket 51 is mounted on the top side of the platform 4 by a plurality of bolts 8; the motor 52 is mounted on the bracket 51; the front end of the bracket 51 is provided with a through channel running from left to right, and the second rotating shaft 53 is rotatably mounted in the channel by bearings; the power output end of the motor 52 is connected to one end of the second rotating shaft 53 by a belt 54, and the abrasive wheel 55 is mounted on the other end of the second rotating shaft 53.

[0033] Furthermore, in a preferred embodiment, the power output end of the motor 52 is provided with a pulley, and one end of the second rotating shaft 53 is provided with another pulley. The belt 54 is mounted on the two pulleys. When the motor 52 is working, the pulley on its power output end drives the pulley on the second rotating shaft 53 and the second rotating shaft 53 to rotate synchronously through the belt 54, thereby driving the grinding wheel 55 to rotate.

[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0035] Based on the above, this utility model also has the following embodiments:

[0036] In another embodiment of this utility model, platform 4 adopts a standardized interface design, which can be quickly adapted to existing abrasive wheel cutting machines on the market, such as the Dongcheng J3G-FF05-400B / FF03-400 models. Existing abrasive wheel cutting machines typically have a detachable bottom support. In this embodiment, the bottom support of the existing abrasive wheel cutting machine is removed, and the existing abrasive wheel cutting machine without the bottom support is fixed to platform 4 with screws 56. An abrasive wheel is then installed, and when the power is turned on, the abrasive wheel can rotate and operate. This solution, by matching the core components of existing abrasive wheel cutting machines, effectively simplifies the product structure, thereby reducing production costs.

[0037] Working principle:

[0038] The column 2 is mounted on the base 1. A rack 6 is connected to the front of the column 2. A T-shaped guide rail is mounted on each of the left and right sides of the front of the column 2. The platform 4 is mounted on the two T-shaped guide rails. The gear 43 is matched with the rack 6. By turning the feed handle 7, the gear 43 can be rotated, and the platform 4 can move up and down along the T-shaped guide rails. The abrasive wheel cutter 5 is fixed to the platform 4 with screws 56, the abrasive wheel 55 is installed, and the power is turned on. The abrasive wheel 55 can then rotate.

[0039] How to use:

[0040] First, place the grinding wheel 55 on the tool for machining the expansion groove of the split surface of the gas turbine cylinder onto the upper surface of the split surface of the gas turbine cylinder to be cut. After aligning, fix the base 1. Then, turn on the motor 52 to drive the grinding wheel 55 to rotate. Next, by smoothly rotating the feed handle 7, the rotating grinding wheel 55 is moved downward along the column 2, so that an expansion groove with uniform size and smooth surface can be cut on the outer wall of the split surface of the gas turbine cylinder.

[0041] In summary, this utility model is simple to operate, accurate in positioning, and inexpensive, solving the problem of high cost in processing expansion grooves for the split surface of gas turbine cylinders.

[0042] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be permuted and combined. Those skilled in the art can exhaust all possibilities based on the mathematical knowledge of permutation and combination. Therefore, this utility model will not describe the permutation and combination technical solutions one by one, but it should be understood that the technical solutions after permutation and combination have been disclosed by this utility model.

[0043] This embodiment is merely an exemplary description of this patent and does not limit its scope of protection. Those skilled in the art can make partial changes to it, as long as they do not exceed the spirit and essence of this patent, they are all within the scope of protection of this patent.

Claims

1. A tool for machining expansion grooves in the split surface of a gas turbine cylinder, characterized in that: The system includes a base (1), a column (2), guide rails (3), a platform (4), and an abrasive wheel cutter (5). The bottom end of the column (2) is connected to the base (1). Two guide rails (3) are symmetrically arranged on the left and right sides of the front side of the column (2), and the two guide rails (3) extend along the height direction of the column (2). The platform (4) is slidably connected to the two guide rails (3). The abrasive wheel cutter (5) is installed on the platform (4).

2. The tool for machining expansion grooves on the split surface of a gas turbine cylinder according to claim 1, characterized in that: A rack (6) is also connected to the front side of the column (2). The rack (6) is located between the two guide rails (3) and is parallel to the two guide rails (3). The platform (4) includes a platform body (41), a first rotating shaft (42) and a gear (43). The first rotating shaft (42) is rotatably mounted on the platform body (41) and passes through the left and right sides of the platform body (41). The gear (43) is mounted on the first rotating shaft (42) and meshes with the rack (6).

3. The tool for machining expansion grooves on the split surface of a gas turbine cylinder according to claim 2, characterized in that: It also includes a feed handle (7), which is mounted on one end of the first rotating shaft (42).

4. The tool for machining expansion grooves on the split surface of a gas turbine cylinder according to claim 2, characterized in that: The platform body (41) has two parallel sliding grooves on its rear side; the two sliding grooves are respectively matched with the two guide rails (3).

5. The tool for machining expansion grooves on the split surface of a gas turbine cylinder according to claim 4, characterized in that: Both guide rails (3) are T-shaped guide rails.

6. The tool for machining expansion grooves on the split surface of a gas turbine cylinder according to claim 1, characterized in that: The abrasive cutting machine (5) includes a bracket (51), a motor (52), a second rotating shaft (53), a belt (54), an abrasive wheel (55), and screws (56). The bracket (51) is mounted on the top side of the platform (4) by multiple screws (56). The motor (52) is mounted on the bracket (51). A through channel is provided at the front end of the bracket (51), and the second rotating shaft (53) is rotatably mounted in the channel by bearings. The power output end of the motor (52) is connected to one end of the second rotating shaft (53) by a belt (54), and the abrasive wheel (55) is mounted on the other end of the second rotating shaft (53).

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