Tile holding device for adjusting gap between upper guide shoes

Abstract

A tile holding device for adjusting the gap of an upper guide tile comprises a clamping part and a jacking part, the clamping part is used for clamping an annular plate on a tile frame, the jacking part is fixed to the clamping part, and the end, away from the clamping part, of the jacking part abuts against the back wall of the upper guide tile; the jacking part comprises a threaded shaft and a threaded cap connected to the threaded shaft in a threaded mode, and the end face of the threaded cap abuts against the upper guide shoe. The upper guide shoe gap adjusting efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of accessories for hydro-generators, and particularly relates to a holding tile device for adjusting the clearance of the upper guide tile. Background Technique

[0002] The upper guide bearing of a hydro-generator unit is an integral part of the core components of the unit and plays a crucial role in the safe and stable operation of the unit. The good operation of the upper guide bearing is directly related to the stable operation of the entire unit. The tile temperature and the swing of the upper guide bearing, as the key operating indicators of the upper guide bearing, need to adjust the clearance of the upper guide tile when the data exceeds the standard to meet the requirements of the safe and stable operation of the unit.

[0003] When adjusting and measuring the clearance of the upper guide tile, it is often necessary to press the upper guide tile tightly against the collar of the upper end shaft. The traditional method is to use hexagon head bolts and nuts to press the upper guide tile tightly against the collar of the upper end shaft between the back wall of the upper guide tile and the tile holder. There are the following disadvantages in using this method: First, it is often impossible to find hexagon head bolts with appropriate lengths; second, the bolts are likely to fall to the bottom of the oil sump during the tightening process; third, the diameter of the bolts is not appropriate and does not meet the requirement of the tightening strength, which is likely to lead to low efficiency of this work. Content of the Utility Model

[0004] The utility model provides a holding tile device for adjusting the clearance of the upper guide tile to solve the problem of low efficiency during the adjustment of the clearance of the upper guide tile.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A holding tile device for adjusting the clearance of the upper guide tile includes a clamping part and a tightening part. The clamping part is used for clamping the ring plate on the tile holder. The tightening part is fixed on the clamping part, and the end of the tightening part away from the clamping part abuts against the back wall of the upper guide tile;

[0007] The tightening part includes a threaded shaft and a threaded nut threadedly connected to the threaded shaft. The end face of the threaded nut abuts against the upper guide tile.

[0008] Further, the length of the threaded nut is not shorter than 1 / 2 of the length of the threaded shaft.

[0009] Further, the threaded nut includes an abutting part and an adjusting part. The adjusting part is threadedly connected to the threaded shaft, and the abutting part is rotatably arranged at the end of the adjusting part away from the clamping part.

[0010] Further, an anti-slip rubber pad is fixed on the end face of the abutting part that abuts against the upper guide tile.

[0011] Further, the clamping part includes an upper clamping plate, a connecting plate and a lower clamping plate which are fixedly connected in sequence. When the clamping part clamps the ring plate on the tile rack, the ring plate is located between the upper clamping plate and the lower clamping plate, and the side wall of the ring plate abuts against the connecting plate. The threaded shaft is fixed on the plate surface of the connecting plate.

[0012] Further, a locking screw hole is formed through the upper clamping plate, and a locking screw is inserted into the locking screw hole in a threaded manner. The end face of the locking screw is used to abut against the plate surface of the ring plate.

[0013] Further, a reinforcing nut is fixed on the plate surface of the upper clamping plate away from the lower clamping plate. The threaded hole of the reinforcing nut is aligned and communicated with the locking screw hole, and the locking screw is threadedly connected with the reinforcing nut.

[0014] Further, at least two holding tile devices of the present application are provided between each upper guide tile and the ring plate on the tile rack.

[0015] The utility model can achieve the following beneficial effects:

[0016] 1. The holding tile device of the present application is provided with a clamping part and a pressing part. By clamping the ring plate on the tile rack with the clamping part, the problem that it is easy to fall to the bottom of the oil sump during the pressing process can be solved; the pressing part includes a threaded shaft and a threaded nut, and the gap can be adjusted by rotating the threaded nut, and the threaded nut can be abutted against the back of the upper guide tile.

[0017] 2. The length of the threaded nut is lengthened, and the threaded nut is rotated so that the threaded nut can move along the threaded shaft, thereby adjusting the length of the pressing part, and further solving the problem that the length of the holding tile device is not suitable.

[0018] 3. Rotating the locking screw can control the gap between the clamping part and the ring plate, so that the clamping part can be clamped with ring plates of different thicknesses, and further the applicability of the holding tile device of the present application is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further illustrates the utility model with reference to the drawings and embodiments:

[0020] Figure 1 is the effect diagram after the holding tile device of the utility model is installed between the upper guide tile and the tile rack;

[0021] Figure 2 is the top view of the holding tile device of the utility model;

[0022] Figure 3 is Figure 2 the sectional view taken along A-A in

[0023] Figure 4 is the left view of the holding tile device of the utility model.

[0024] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0025] 1. Clamping part; 11. Upper clamping plate; 111. Locking screw hole; 12. Connecting plate; 13. Lower clamping plate; 2. Tightening part; 21. Threaded shaft; 22. Threaded nut; 221. Contact part; 222. Adjusting part; 3. Anti-slip rubber pad; 4. Locking screw; 5. Reinforcing nut;

[0026] 100. Upper end shaft; 200. Upper guide shoe; 300. Shoe bracket; 400. Ring plate. Detailed implementation manners

[0027] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant accompanying drawings. Embodiments of the present application are shown in the accompanying drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0028] As Figure 1 shown, a plurality of upper guide shoes 200 are tightly attached to the circumferential side of the upper end shaft 100, and an annular shoe bracket 300 is arranged outside the upper guide shoes 200. During the process of adjusting the gap of the upper guide shoes 200 so that the upper guide shoes 200 are tightly attached to the upper end shaft 100, a shoe holding device for adjusting the gap of the upper guide shoes of the present application is arranged between the upper guide shoes 200 and the shoe bracket 300 to realize the adjustment of the gap.

[0029] A shoe holding device for adjusting the gap of the upper guide shoes, referring to Figures 1 to 4 , includes a clamping part 1 and a tightening part 2. The clamping part 1 is used for clamping the ring plate 400 on the shoe bracket 300, the tightening part 2 is fixed on the clamping part 1, and one end of the tightening part 2 far from the clamping part 1 abuts against the back wall of the upper guide shoe 200. The problem that the shoe holding device is likely to fall to the bottom of the oil sump during the tightening process is solved by the clamping part 1, and the problem that the length is inappropriate and the tightening strength is not satisfied can be solved by the tightening part 2.

[0030] The clamping part 1 includes an upper clamping plate 11, a connecting plate 12 and a lower clamping plate 13 which are fixedly connected in sequence. When the clamping part 1 clamps the ring plate 400 on the shoe bracket 300, the ring plate 400 is located between the upper clamping plate 11 and the lower clamping plate 13, and the annular side wall of the ring plate 400 abuts against the connecting plate 12. A locking screw hole 111 is penetrated through the upper clamping plate 11, and a locking screw 4 is threadedly connected in the locking screw hole 111. One end of the locking screw 4 is located between the upper clamping plate 11 and the lower clamping plate 13, and the other end is located on the side of the upper clamping plate 11 far from the lower clamping plate 13.

[0031] When installing the clamping part 1 onto the ring plate 400 of the tile rack 300, the distance between the locking screw 4 and the lower clamping plate 13 can be adjusted by rotating the locking screw 4, so that the ring plate 400 is clamped between the locking screw 4 and the lower clamping plate 13, to meet the stable clamping of ring plates 400 with different thicknesses and reduce the occurrence of the dropping of the holding tile device. In addition, when disassembling the holding tile device, only by rotating the locking screw 4 to increase the distance between the end face of the locking screw 4 and the lower clamping plate 13, the holding tile device can be removed, which is convenient and fast.

[0032] In another embodiment, a reinforcing nut 5 is further fixed on the plate surface of the upper clamping plate 11 away from the lower clamping plate 13. The reinforcing nut 5 can be welded on the upper clamping plate 11. The threaded hole of the reinforcing nut 5 is aligned and communicated with the locking screw hole 111, and the aperture of the threaded hole of the reinforcing nut 5 is the same as that of the locking screw hole 111. Thus, when the locking screw 4 is threadedly connected to the upper clamping plate 11, the locking screw 4 is simultaneously threadedly connected to the reinforcing nut 5. The setting of the reinforcing nut 5 lengthens the connection length of the locking screw 4, making the locking screw 4 more stable.

[0033] The tightening part 2 includes a threaded shaft 21 and a threaded cap 22 threadedly sleeved on the threaded shaft 21. The end face of the threaded cap 22 abuts against the back wall of the upper guide tile 200. One end of the threaded shaft 21 is fixedly welded to the plate surface of the connecting plate 12. The length of the threaded cap 22 is not shorter than 1 / 2 of the length of the threaded shaft. In a preferred embodiment, the length of the threaded cap 22 is the same as the length of the threaded shaft 21. Thus, the length of the tightening part 2 can be adjusted by rotating the threaded cap 22, and further the gap of the upper guide tile 200 can be adjusted.

[0034] In another embodiment, the threaded cap 22 includes an abutting part 221 and an adjusting part 222. The abutting part 221 is rotatably connected to one end of the adjusting part 222 away from the clamping part 1, and the abutting part 221 is a solid structure. The adjusting part 222 is threadedly sleeved outside the threaded shaft 21, and the length of the tightening part 2 is adjusted by rotating the adjusting part 222. A non-slip rubber pad 3 is fixed on the end face of the abutting part 221 away from the adjusting part 222. Since the back wall of the upper guide tile 200 is arc-shaped, the setting of the non-slip rubber pad 3 can, on the one hand, make the end face of the threaded shaft 21 better fit with the back wall of the upper guide tile 200, increase the contact area between the threaded shaft 21 and the upper guide tile 200, and improve the tightening strength without increasing the diameter of the threaded shaft 21.

[0035] To achieve the precise adjustment of the gap of each upper guide tile 200 and the stable support of the holding tile device for the upper guide tile 200, at least two holding tile devices are arranged between each upper guide tile 200 and the ring plate 400.

[0036] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A shoe holding device for adjusting the gap between upper guide shoes, characterized in that: It comprises a clamping portion (1) and a pressing portion (2), wherein the clamping portion (1) is used to clamp the ring plate (400) on the tile frame (300), the pressing portion (2) is fixed on the clamping portion (1), and one end of the pressing portion (2) away from the clamping portion (1) is pressed against the back wall of the upper guide tile (200); The tightening portion (2) comprises a threaded shaft (21) and a threaded cap (22) threadedly connected to the threaded shaft (21), and an end surface of the threaded cap (22) abuts against the upper guide bushing (200).

2. A shoe holding device for adjusting the gap between upper guide shoes according to claim 1, characterized in that: The length of the threaded cap (22) is not shorter than 1 / 2 of the length of the threaded shaft (21).

3. A shoe holding device for adjusting the gap between upper guide shoes according to claim 1 or 2, characterized in that: The threaded cap (22) comprises an abutment portion (221) and an adjustment portion (222), the adjustment portion (222) being threadedly connected to the threaded shaft (21), and the abutment portion (221) being rotatably disposed at an end of the adjustment portion (222) away from the clamping portion (1).

4. A shoe holding device for adjusting the gap between upper guide shoes according to claim 3, characterized in that: An anti-slip rubber pad (3) is fixed to the end surface of the abutting portion (221) abutting against the upper guide shoe (200).

5. The shoe holding device for adjusting the upper guide shoe gap according to claim 1, characterized in that: The clamping portion (1) comprises an upper clamping plate (11), a connecting plate (12) and a lower clamping plate (13) which are fixedly connected in sequence. When the clamping portion (1) clamps the ring plate (400) on the tile frame (300), the ring plate (400) is located between the upper clamping plate (11) and the lower clamping plate (13), and the side wall of the ring plate (400) is tightly pressed against the connecting plate (12), and the threaded shaft (21) is fixed on the plate surface of the connecting plate (12).

6. A shoe holding device for adjusting the gap between upper guide shoes according to claim 5, characterized in that: The upper clamping plate (11) is provided with a locking screw hole (111) extending therethrough, a locking screw rod (4) being inserted into the inner thread of the locking screw hole (111), and an end surface of the locking screw rod (4) being used for pressing against the surface of the ring plate (400).

7. A shoe holding device for adjusting the gap between upper guide shoes according to claim 6, characterized in that: A reinforcing nut (5) is also fixed on the plate surface of the upper clamping plate (11) away from the lower clamping plate (13); the threaded hole of the reinforcing nut (5) is aligned with and communicated with the locking screw hole (111); and the locking screw (4) is threadedly connected to the reinforcing nut (5).

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