Operation platform for shrinkage fit

Abstract

The utility model relates to an operating platform for shrinkage fit, which comprises a base for fixing a shaft, and a horizontal adjusting mechanism and a vertical adjusting mechanism arranged on the base, the horizontal adjusting mechanism and the vertical adjusting mechanism are used for positioning a shrinkage fit impeller and a gear which are arranged on the shaft, and the base consists of at least two bottom plates which are flush in height. A distance is arranged between the two bottom plates and used for fixing the bottom position of a shaft which is vertically inserted, each bottom plate is provided with a horizontal adjusting mechanism and a vertical adjusting mechanism, and the horizontal position and the vertical height of a shrinkage fit impeller and a gear which are installed on the shaft are located through the horizontal adjusting mechanisms and the vertical adjusting mechanisms correspondingly. Therefore, the normal operation of the shrinkage fit is ensured. The device has the advantages of being simple and reasonable in structure, convenient to use and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of shrink fitting, and relates to an operating platform for shrink fitting. Background Art

[0002] Shrink fitting, also known as hot shrinking, is a process to achieve interference fit of parts. The shaft and hole are assembled together by using the characteristics of thermal expansion and contraction of metal materials. During the shrink fitting process of the single-shaft rotor impeller sleeve and large gear of a turbine compressor, first, the shaft needs to be fixed, and the horizontal and vertical accuracies of the shaft need to be ensured. Generally, there are multiple shrink-fitting impellers on the shaft, and their sizes are different. The conventional shrink-fitting operation is time-consuming and laborious. Therefore, an operating platform for shrink fitting is designed to overcome the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies existing in the prior art, and to provide a tooling for gear pair grinding with simple and reasonable structure, convenient operation, cost saving, improved versatility, improved work efficiency, and guaranteed product quality.

[0004] The utility model is realized by the following technical solutions: An operating platform for shrink fitting includes a base for fixing the shaft, and a horizontal adjustment mechanism and a vertical adjustment mechanism arranged on the base. The horizontal adjustment mechanism and the vertical adjustment mechanism are used to position the shrink-fitting impeller and gear installed on the shaft. The base is composed of at least two bottom plates with the same height. There is a spacing between the two bottom plates for fixing the bottom position of the vertically inserted shaft. A horizontal adjustment mechanism and a vertical adjustment mechanism are respectively arranged on each bottom plate. The horizontal position and vertical height of the shrink-fitting impeller and gear installed on the shaft are positioned through the horizontal adjustment mechanism and the vertical adjustment mechanism respectively, so as to ensure the normal operation of the shrink-fitting work.

[0005] Preferably: The horizontal adjustment mechanism consists of two parallel and outwardly convex linear guide rails arranged on the upper surface of each bottom plate, an inwardly concave guide rail groove arranged between the two linear guide rails, and a flat plate arranged directly above the guide rail groove. An outwardly convex linear guide rail slider matching the guide rail groove is arranged at the middle position of the bottom of the flat plate. The linear guide rail slider is inserted into the guide rail groove to drive the flat plate to move horizontally. A vertical adjustment mechanism and a locking mechanism are respectively arranged on the horizontal adjustment mechanism. The locking mechanism is used to lock the flat plate after adjusting its horizontal position.

[0006] Preferably, the vertical adjustment mechanism consists of columns, a moving plate, a threaded lead screw, a nut, and a handwheel provided on each flat plate. Among them, the columns are vertically installed on the flat plate, and a top plate is installed at the top of the columns, forming an inverted L-shaped structure between the top plate and the columns. A threaded lead screw is horizontally arranged on one side of the columns directly below the top plate. One end of the threaded lead screw penetrates through the top plate and part of it is exposed outside the top plate, and a handwheel is installed on the exposed part. The other end is inserted into a corresponding groove opened on the flat plate. A through hole is opened on the moving plate, and a nut matching the lead screw is installed at the through hole. The moving plate is horizontally installed on the threaded lead screw through the through hole and the nut. One end of the moving plate is in close contact with the column to ensure the overall stability. A red sleeve impeller is placed above the other end of the moving plate. By rotating the handwheel, the nut moves up and down on the threaded lead screw, thereby adjusting the vertical height of the moving plate, and thus ensuring the vertical positioning of the red sleeve impeller.

[0007] Preferably, the locking mechanism consists of a through hole vertically penetrating the flat plate provided on the flat plate and a lock nut installed in the through hole. Threads are provided in the through hole. After the flat plate is adjusted to the horizontal position, by tightening the lock nut, the bottom of the lock nut is inserted into the guide rail groove and abuts against the bottom of the guide rail groove, thereby realizing the position fixation of the flat plate.

[0008] The beneficial effects of the present utility model are as follows:

[0009] The operating platform for red sleeve designed by the present utility model first fixes the shaft through the bottom plate to ensure the horizontal and vertical accuracy of the shaft, and then positions the red sleeve impeller and gear installed on the shaft through the horizontal adjustment mechanism and the vertical adjustment mechanism, ensuring the efficiency and accuracy of the red sleeve process. The present utility model has many advantages such as simple and reasonable structure, convenient operation, cost saving, improved versatility, improved work efficiency, and ensured product quality. Description of the Drawings

[0010] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0011] Figure 2 It is a schematic diagram of the structure of the linear guide rail and the guide rail groove in the present utility model.

[0012] Figure 3 It is a schematic diagram of the structure of the horizontal adjustment mechanism and the vertical adjustment mechanism in the present utility model. Detailed Embodiment

[0013] To enable those of ordinary skill in the art to more clearly understand the purpose, technical solution, and advantages of the present utility model, the following further elaborates on the present utility model in conjunction with the drawings and embodiments.

[0014] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal", "vertical", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or component referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0015] The following will introduce the present utility model in detail with reference to the drawings: As Figure 1 shown, an operating platform for shrink fitting includes a base for fixing the shaft 1, and a horizontal adjustment mechanism and a vertical adjustment mechanism arranged on the base. The horizontal adjustment mechanism and the vertical adjustment mechanism are used to position the shrink fitting impeller 2 and the gear mounted on the shaft 1. The base is composed of at least two bottom plates 3 with the same height. A spacing 4 is provided between the two bottom plates 3 to fix the bottom position of the vertically inserted shaft 1. A horizontal adjustment mechanism and a vertical adjustment mechanism are respectively arranged on each bottom plate 3. The horizontal adjustment mechanism and the vertical adjustment mechanism are used to position the shrink fitting impeller 2 and the gear mounted on the shaft in the horizontal position and the vertical height respectively, so as to ensure the normal operation of the shrink fitting work.

[0016] As Figure 2 shown, the horizontal adjustment mechanism is composed of two parallel and outwardly convex linear guide rails 5 arranged on the upper surface of each bottom plate 3, an inwardly concave guide rail groove 6 arranged between the two linear guide rails 5, and a flat plate 7 arranged directly above the guide rail groove 6. An outwardly convex linear guide rail slider 8 matching the guide rail groove 6 is arranged at the middle position of the bottom of the flat plate 7. The linear guide rail slider 8 is inserted into the guide rail groove 6 to drive the flat plate 7 to move horizontally. A vertical adjustment mechanism and a locking mechanism are respectively arranged on the horizontal adjustment mechanism. The locking mechanism is used to lock the flat plate 7 after adjusting the horizontal position.

[0017] Preferably, the bottom plate has a length of 1500 mm and a width of 600 mm. The length of each guide rail groove is preferably 100 mm, and the flat plate is preferably 600 mm long and 600 mm wide.

[0018] As Figure 3As shown in the figure, the vertical adjustment mechanism is composed of a column 16, a moving plate 9, a threaded lead screw 10, a nut 11 and a handwheel 12 provided on each flat plate 7. The column 16 is vertically installed on the flat plate 7. A top plate 13 is installed at the top of the column 16, forming an inverted L-shaped structure between the top plate 13 and the column 16. A threaded lead screw 10 is horizontally arranged on one side of the column 16 directly below the top plate 13. One end of the threaded lead screw 10 penetrates through the top plate 13 and part of it is exposed outside the top plate 13. A handwheel 12 is installed on the exposed part. The other end is inserted into a groove correspondingly opened on the flat plate 7. A through hole is opened on the moving plate 9, and a nut 11 matching the lead screw is installed at the through hole. The moving plate 9 is horizontally installed on the threaded lead screw 10 through the through hole and the nut 11. One end of the moving plate 9 is in close contact with the column 16 to ensure the overall stability. A red sleeve impeller 2 is placed above the other end of the moving plate 9. By rotating the handwheel 12, the nut 11 is driven to move up and down on the threaded lead screw, so as to adjust the vertical height of the moving plate 9, thus ensuring the vertical positioning of the red sleeve impeller 2. The moving plate is preferably 1000 mm long and 1000 mm wide.

[0019] The utility model can conveniently and effectively fix the shaft, and can also conveniently adjust up and down to make the impeller and gear sleeved on the shaft horizontal, thereby improving work efficiency and product quality.

[0020] The locking mechanism is composed of a through hole 15 vertically penetrating the flat plate 7 provided on the flat plate 7 and a locking nut 14 installed in the through hole 15. Threads are provided in the through hole 15. After the flat plate is adjusted to the horizontal position, by tightening the locking nut 14, the bottom of the locking nut 14 is inserted into the guide rail groove 6 and abuts against the bottom of the guide rail groove 6, so as to realize the position fixation of the flat plate.

[0021] During the red sleeve process of the single-shaft rotor impeller sleeve and the large gear of the turbine compressor, first, the shaft needs to be fixed well, and the horizontal and vertical precision of the shaft needs to be ensured. The gap between the heated impeller and gear and the shaft is very small. There are many sizes, specifications and models of the impeller, gear and shaft. Therefore, through the design of the utility model, the operation can be carried out very conveniently, greatly improving the overall work efficiency. The red sleeve operation platform of the utility model can conveniently carry out red sleeve on various specifications of rotors and gears. The actual application situation is good, meeting the requirements of the process design and improving the work efficiency.

[0022] The working process of the utility model is as follows:

[0023] During the shrinking-on process, place two pieces on both sides of the shaft respectively. First, move the two adjusting plates up and down to the shrinking-on positions of the impeller and the large gear, and ensure that the heights and horizontal positions of the left and right flat plates and the adjusting plates are aligned. Then, push the adjusting plates on both sides by hand to clamp the shaft, and lock the entire flat plate with the guide rail bolts. Then, the impeller and the large gear can be shrunk on. The whole process is convenient and simple.

[0024] The specific embodiments described in this document are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An operating platform for a red set, comprising a base for fixing a shaft (1) and a horizontal adjustment mechanism and a vertical adjustment mechanism arranged on the base, the horizontal adjustment mechanism and the vertical adjustment mechanism being used to position a red set impeller (2) and a gear mounted on the shaft (1), characterized in that: The base is composed of at least two bottom plates (3) of flush height, with a spacing (4) provided between the two bottom plates (3) for fixing the bottom position of the vertically inserted shaft (1), and a horizontal adjustment mechanism and a vertical adjustment mechanism are provided on each bottom plate (3). The horizontal adjustment mechanism and the vertical adjustment mechanism are used to position the horizontal position and the vertical height of the red sleeve impeller (2) and the gear mounted on the shaft, respectively, so as to ensure the normal operation of the red sleeve.

2. The operating platform for red sets according to claim 1, characterized in that: The horizontal adjustment mechanism is composed of two parallel and outwardly convex linear guide rails (5) arranged on the upper surface of each base plate (3), a concave guide rail groove (6) arranged in the middle of the two linear guide rails (5), and a flat plate (7) arranged directly above the guide rail groove (6). A convex linear guide rail slider (8) matching the guide rail groove (6) is arranged at the middle position of the bottom of the flat plate (7). The linear guide rail slider (8) is inserted into the guide rail groove (6) to drive the flat plate (7) to move horizontally. A vertical adjustment mechanism and a locking mechanism are respectively arranged on the horizontal adjustment mechanism. The locking mechanism is used to lock the flat plate (7) after adjusting the horizontal position.

3. The operating platform for red sets according to claim 2, characterized in that: The vertical adjustment mechanism comprises a column (16) arranged on each flat plate (7), a movable plate (9), a threaded screw (10), a nut (11) and a hand wheel (12), wherein the column (16) is vertically mounted on the flat plate (7), a top plate (13) is mounted on the top of the column (16), an inverted L-shaped structure is formed between the top plate (13) and the column (16), a threaded screw (10) is horizontally arranged on one side of the column (16) and directly below the top plate (13), one end of the threaded screw (10) passes through the top plate (13) and the rear portion is exposed outside the top plate (13), and a hand wheel (12) is mounted on the exposed portion, wherein the threaded screw (10) is movable on the top plate (13) and the hand wheel (12) is mounted on the exposed portion. The other end is inserted and mounted in a corresponding groove on the flat plate (7); a through hole is formed on the movable plate (9), and a nut (11) matching the screw rod is mounted at the through hole; the movable plate (9) is horizontally mounted on the threaded screw rod (10) through the through hole and the nut (11); one end of the movable plate (9) is closely attached to the column (16) to ensure overall stability; a red sleeve impeller (2) is placed above the other end of the movable plate (9); the nut (11) is driven to move up and down on the threaded screw rod by rotating the hand wheel (12), thereby adjusting the vertical height of the movable plate (9) and ensuring the vertical positioning of the red sleeve impeller (2).

4. The operating platform for red sets according to claim 2, characterized in that: The locking mechanism comprises a through hole (15) provided on the flat plate (7) and vertically penetrating the flat plate (7) and a locking nut (14) installed in the through hole (15); a thread is provided in the through hole (15); when the flat plate is adjusted to a horizontal position, the locking nut (14) is tightened so that the bottom of the locking nut (14) is inserted into the guide rail groove (6) and abuts against the bottom of the guide rail groove (6), thereby achieving the fixing of the position of the flat plate.

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