Point-supporting tilting pad inner hole finish turning clamp

Abstract

The utility model relates to the technical field of tilting pad machining, in particular to a point-supporting tilting pad inner hole finish turning clamp which comprises a pad and a top plate with a center through hole formed in the plane of one side of an outer ring. An inner ring is sleeved in the outer ring; through hole radiuses of the top plate and the inner ring are greater than inner diameters of the inner surfaces of the tiles; the inner ring part is broken to form a gap; the tile is located in the gap, the locking block is fixed to the outer ring through a screw, one side of the gap of the inner ring is attached to the locking block, and the locking block and the other side of the gap of the inner ring face the side face of the tile and are attached to the tile; a plurality of outer positioning half holes are formed in the inner side of the outer ring, so that the tilting pad can be mounted at the same position without repeated measurement and clamping when being machined, the accuracy of cutting feeding is ensured, the height consistency of the pad is kept, and the load distribution is uniform; and through the arrangement of the inner ring and the locking block, the clamping face is completely attached to the tilting pad, and the situation that the machining precision is affected due to vibration in the machining process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a point support tilting pad machining technical field, concretely is a point support tilting pad inner hole finish turning clamp. BACKGROUND

[0002] In recent years, the petroleum, chemical industry and other industries develop rapidly, and the equipment capacity improves year by year, and the corresponding compressor model is also bigger and bigger, in order to meet the operation needs of large-scale compressors, the use of point contact tilting pad bearing is more and more widely, and the point contact tilting pad requires that the straightness of the inner hole in the axial direction is controlled within 0.01mm.

[0003] But the existing pad clamp is difficult to keep the consistency of the pad height during machining, which leads to uneven load distribution in subsequent use and increases the risk of pad burning, when clamping the tilting pad bearing, the gap between the pads or the need for rotary machining often leads to insecure clamping and easy falling off, and the rigid ball head as a key component of the tilting pad bearing is exposed to the external environment (such as lubricating water or impurities) during the machining process, which is easy to be eroded, and the traditional clamp lacks effective protection structure for the ball head, which further aggravates the wear risk. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a point support tilting pad inner hole finish turning clamp.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a point support tilting pad inner hole finish turning clamp, comprising a pad, the outer side of the pad is provided with a point contact ball body, the pad is attached to the inside of an outer ring, a rectangular groove is formed in the inner wall of the outer ring, and the point contact ball body is located at the rectangular groove, a top plate with a center through hole is arranged on one side of the outer ring, an inner ring is sleeved in the inside of the outer ring, and the inner ring is in abutment with the top plate, the through hole radius of the top plate and the inner ring is greater than the inner diameter of the inner surface of the pad, the inner ring is partially disconnected to form a gap, the pad is located in the gap, one or more locking blocks are further arranged in the inside of the gap, the locking blocks are fixed to the outer ring through screws, the inner side of the gap of the inner ring is attached with the locking blocks, and the other side of the locking blocks and the gap of the inner ring is attached with the pad side.

[0006] As a further preferred embodiment of the utility model, a spring is sleeved on the outer side of the screw, and the spring is located between the outer ring and the locking block.

[0007] The setting of the spring facilitates the positioning of the locking block, and after the screw is disassembled, the locking block is separated.

[0008] As a further preferred embodiment of this invention, the top plate has an opening at the rectangular groove.

[0009] The above structure facilitates the processing of the outer ring.

[0010] As a further preferred embodiment of this utility model, the saddle pin is a top threaded pin, the tip of the top threaded pin is threaded and is threaded to the top plate, and the middle part of the top threaded pin is a column that fits into the hole formed by splicing the outer positioning half hole and the inner positioning half hole.

[0011] The above settings improve the stability of the device and prevent the inner and outer rings from separating due to axial force during processing.

[0012] As a further preferred embodiment of this utility model, the tip of the top threaded pin is threadedly connected to the top plate; a sealing plate is provided on the side of the inner ring away from the top plate, the sealing plate is an annular plate with a through hole in the middle, the radius of the through hole is larger than the inner diameter of the inner surface of the tile, and the sealing plate abuts against the inner ring through the screw head of the top threaded pin.

[0013] As a further preferred embodiment of this invention, the inner ring is aligned with the side of the tile away from the top plate, and the sealing plate abuts against the tile.

[0014] In summary, the rigid ball head is sealed by the top plate and sealing plate, in conjunction with the blocking effect of the tile blocks, thus preventing it from being corroded and worn during processing.

[0015] As a further preferred embodiment of this utility model, the axial width of the tile is smaller than the axial width of the inner ring, a sealing gasket is provided between the sealing plate and the tile, the sealing gasket abuts against both sides at the break point of the inner ring, and the radial thickness of the sealing gasket is the same as that of the inner ring.

[0016] The above settings enable the sealing process of point contact spheres for smaller tiles, increasing the versatility of the device.

[0017] As a further preferred embodiment of this utility model, a rubber gasket is fixed to the tip of the top threaded pin.

[0018] The above settings prevent the top threaded pin from pressing against the sealing cap and causing damage.

[0019] Technical effects and advantages of the utility model:

[0020] 1. During the processing of tiltable tiles, there is no need to repeatedly measure and clamp them. They can be installed in the same position each time, ensuring the accuracy of the cutting feed. This allows the thickness difference of each group of tiles to be controlled within the required range, maintaining the consistency of tile height, ensuring uniform load distribution, and avoiding the risk of tile burning.

[0021] 2. By the setting of the inner ring and the locking block, the clamping surface completely matches the tilting pad, avoids the vibration during machining, and influences the machining precision. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure schematic view of the point support tilting pad inner hole fine turning clamp.

[0023] Figure 2 It is an explosion view of the point support tilting pad inner hole fine turning clamp.

[0024] Figure 3 It is a structure schematic view of another embodiment of the point support tilting pad inner hole fine turning clamp.

[0025] Figure 4 It is a structure schematic view of the top threaded pin in the point support tilting pad inner hole fine turning clamp.

[0026] Figure 5 It is a structure schematic view of the sealing gasket in the point support tilting pad inner hole fine turning clamp.

[0027] The figure signs are: 1, outer ring; 2, inner ring; 3, seam riding pin; 4, spring; 5, screw; 6, locking block; 7, pad; 8, rectangular groove; 9, sealing plate; 10, top threaded pin; 11, top plate; 12, rubber gasket; 13, sealing gasket; 301, outer positioning half hole; 302, inner positioning half hole. DETAILED DESCRIPTION

[0028] The technical schemes in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] Refer to the drawings in the embodiments of the utility model Figures 1-4As shown, a precision machining fixture for the inner hole of a point-supported tiltable tile 7 includes a tile 7, with a point-contact ball on the outer side of the tile 7; the tile 7 fits into the interior of an outer ring 1, and a rectangular groove 8 is formed on the inner wall of the outer ring 1, with the point-contact ball located at the rectangular groove 8; a top plate 11 with a central through hole is provided on one side plane of the outer ring 1; an inner ring 2 is sleeved inside the outer ring 1, and the inner ring 2 abuts against the top plate 11; the radius of the through hole in the top plate 11 and the inner ring 2 is larger than the inner diameter of the inner surface of the tile; the inner ring 2 is partially broken to form a gap; The tile 7 is located within the gap, and one or more locking blocks 6 are provided inside the gap. The locking blocks 6 are fixed to the outer ring 1 by screws 5. One side of the gap of the inner ring 2 is in contact with the locking block 6, and the other side of the locking block 6 and the gap of the inner ring 2 are in contact with the side of the tile 7. The inner side of the outer ring 1 is provided with a plurality of outer positioning half holes 301, and the outer side of the inner ring 2 is provided with inner positioning half holes 302 corresponding to the outer positioning half holes 301. The half holes fit together to form a hole, and a saddle pin 3 is inserted into the inner side of the hole.

[0030] The working process of this utility model is as follows: the inner and outer rings 1 are connected by the seam pin 3, the tile 7 is placed in the gap of the inner ring 2, and the locking block 6 is driven by the screw 5 to press the tile 7, thereby clamping the tile 7. Through the setting of the gap of the inner ring 2, the tile 7 can be fixed in the same position each time, ensuring the accuracy of the cutting feed, controlling the thickness difference of each group of tiles 7 within the required range, maintaining the consistency of the height of the tiles 7, making the load distribution uniform, avoiding the risk of tile burning, and through the setting of the inner ring 2 and the locking block 6, the clamping surface is completely in contact with the tiltable tile 7, avoiding vibration during processing and affecting the processing accuracy.

[0031] Furthermore, a spring 4 is fitted on the outside of the screw 5. The spring 4 is located between the outer ring 1 and the locking block 6. The spring 4 facilitates the positioning of the locking block 6 and helps to separate the locking block 6 after the screw 5 is removed.

[0032] like Figure 4 As shown, in the first embodiment of the utility model, the saddle pin 3 is a top threaded pin 10. The tip of the top threaded pin 10 is threaded and is threaded to the top plate 11. The middle part of the top threaded pin 10 is a column and fits into the hole formed by splicing the outer positioning half hole 301 and the inner positioning half hole 302. The above-mentioned arrangement improves the stability of the device and avoids the separation of the inner ring 2 and the outer ring 1 caused by axial force during processing.

[0033] Furthermore, during the operation of this embodiment, the tip of the top threaded pin 10 is threadedly connected to the top plate 11, and the head of the top threaded pin 10 is described above; a sealing plate 9 is provided on the side of the inner ring 2 away from the top plate 11, and the sealing plate 9 is an annular plate with a through hole in the middle, the radius of the through hole being larger than the inner diameter of the inner surface of the tile, and the sealing plate 9 abuts against the inner ring 2 through the head of the top threaded pin 10.

[0034] like Figure 1 As shown, in the second embodiment of this utility model, the inner ring 2 is aligned with the side of the tile 7 away from the top plate 11, and the sealing plate 9 abuts against the tile 7. The sealing of the rigid ball head is achieved by the arrangement of the top plate 11 and the sealing plate 9, in conjunction with the blocking of the tile 7, thus preventing it from being corroded and worn during processing.

[0035] like Figure 5 As shown, in the third embodiment of this utility model, the axial width of the tile 7 is smaller than the axial width of the inner ring 2. A sealing gasket 13 is provided between the sealing plate 9 and the tile 7. The sealing gasket 13 abuts against both sides of the disconnection point of the inner ring 2, and the radial thickness of the sealing gasket 13 is the same as that of the inner ring 2. The above arrangement achieves the sealing process of the point contact sphere of the smaller tile 7, increasing the versatility of the device.

[0036] Furthermore, such as Figure 4 As shown, a rubber gasket 12 is fixed to the tip of the top threaded pin 10 to prevent the top threaded pin 10 from pressing on the sealing cover and causing damage.

[0037] like Figure 2 As shown, in the fourth embodiment of this utility model, the top plate 11 is opened at the rectangular groove 8. The above structure allows the rectangular groove 8 to be processed through, which facilitates the processing of the outer ring 1.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A point support tilting pad inner hole fine turning fixture, comprising a pad, a point contact ball is arranged outside the pad; characterized in that, The tile is attached to the inner part of the outer ring, a rectangular groove is arranged on the inner wall of the outer ring, and the point contact sphere is located at the rectangular groove; a top plate with a central through hole is arranged on one side of the outer ring; The inner part of the outer ring is sleeved with an inner ring, and the inner ring abuts against the top plate; The through hole radius of the top plate and the inner ring is larger than the inner diameter of the inner surface of the tile; The inner ring is partially disconnected to form a gap, the tile is located in the gap, and one or more locking blocks are further arranged in the inner part of the gap, the locking blocks are fixed to the outer ring through screws, one side of the gap of the inner ring abuts against the locking blocks, and the other side of the gap of the locking blocks and the inner ring abuts against the side surface of the tile; A plurality of outer positioning half-holes are arranged on the inner side of the outer ring, a plurality of inner positioning half-holes corresponding to the outer positioning half-holes are arranged on the outer side of the inner ring, the half-holes are matched to form a hole, and a split pin is inserted into the inner side of the hole.

2. The inner hole fine turning fixture of a point support tilting pad according to claim 1, characterized in that: The outer side of the screw is sleeved with a spring, and the spring is located between the outer ring and the locking block.

3. The inner hole fine turning fixture of a point support tilting pad according to claim 1, characterized in that: The split pin is a threaded pin, the tip of the threaded pin is threaded and connected with the top plate, and the middle part of the threaded pin is a column body which is matched with the hole formed by the outer positioning half-holes and the inner positioning half-holes.

4. The inner hole fine turning clamp of the point support tilting pad according to claim 3, characterized in that: The tip of the threaded pin is connected with the top plate in a threaded manner; a sealing plate is arranged on the side of the inner ring away from the top plate, the sealing plate is an annular plate with a through hole in the middle, the radius of the through hole is larger than the inner diameter of the inner surface of the tile, and the sealing plate abuts against the inner ring through the threaded head of the threaded pin.

5. The inner hole fine turning fixture of a point support tilting pad according to claim 4, characterized in that: The inner ring is aligned with the tile on the side away from the top plate, and the sealing plate abuts against the tile.

6. The inner hole fine turning fixture of a point support tilting pad according to claim 4, characterized in that: The axial width of the tile is smaller than the axial width of the inner ring, a sealing gasket is arranged between the sealing plate and the tile, the sealing gasket abuts against the inner ring on both sides, and the radial thickness of the sealing gasket is the same as that of the inner ring.

7. The inner hole fine turning fixture of a point support tilting pad according to claim 4, characterized in that: The threaded head of the threaded pin is fixed with a rubber gasket on the side towards the tip.

8. The inner hole fine turning fixture of a point support tilting pad according to claim 1, characterized in that: The top plate is arranged at the opening of the rectangular groove.

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