Adjustable bearing seat and using method thereof

Abstract

The adjustable bearing seat comprises a base, a first hydraulic cylinder is fixedly installed in the middle of the top face of the base, guide columns are symmetrically and fixedly installed at the positions, located on the two sides of the first hydraulic cylinder, of the top of the base, the tops of the guide columns are sleeved with a lower shell and an upper shell correspondingly, and limiting arc grooves are symmetrically formed in the tops of the two ends of the base; the top of the limiting arc groove is slidably sleeved with a limiting arc block, a supporting shaft is fixedly installed at the top of the limiting arc block, an adjusting shaft is movably installed at the top of the supporting shaft, a pressing plate is fixedly installed at the top of the adjusting shaft, one end of the pressing plate is located at the top of the side edge of the upper shell, and the end of the pressing plate is sleeved with the guide column. And the first hydraulic cylinder and the second hydraulic cylinder are arranged on the base to provide pressing force for the lower shell and the upper shell, the screw rings are installed on the front faces and the back faces of the lower shell and the upper shell, and the detection blocks are arranged on the screw rings, so that the working stability of the mechanical bearing seat is integrally improved, and the loss of a bearing is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of bearing seats, and in particular to an adjustable bearing seat. Background Art

[0002] The bearing seat is used to support the bearing and is generally used in lifting and transportation machines. Its function is to fix the outer ring of the bearing, so that the inner ring of the bearing rotates and the outer ring remains stationary. The existing bearing seats are installed in an up-and-down manner when installing the bearing, that is, the upper and lower bearing seat shells are used to clamp the bearing, and then tighten them with bolts, so that the bearing and the bearing seat shell are integrated into one. The overall structure is simple and convenient to use, but this type of bearing seat still has certain shortcomings in actual use:

[0003] First, the existing bearing seat needs to be fastened by bolts when it is installed and used. However, when the bolts are fastened, the bolts on both sides cannot be tightened synchronously, and there will be a certain gap when tightening manually, resulting in a difference in the tightening force on both sides. This makes it easy for the bearing to shake and increase the loss during subsequent work. At the same time, the bearing seat plays a supporting role with the bearing, but the height of the inner shaft of the bearing is different. At this time, the height of the bearing seat needs to be adjusted. Generally, other support structures are used to adjust the bottom of the bearing seat, which is quite troublesome.

[0004] Secondly, in actual work, it is impossible to ensure that the mechanical bearing seat and the inner shaft are installed absolutely horizontally or vertically. This will cause uneven force on the bearing circle during work, which will increase the loss of the bearing. At the same time, there will be hidden dangers in the support stability of the inner shaft and the bearing seat. Therefore, it is also a problem in practice. Summary of the invention

[0005] The present application proposes an adjustable bearing seat, which has the advantages of high stability and low bearing loss, and is used to solve the problems raised by the background technology.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: an adjustable bearing seat, comprising a base, a first hydraulic cylinder is fixedly installed in the middle of the top surface of the base, guide columns are symmetrically fixedly installed on the top of the base at both sides of the first hydraulic cylinder, the top of the guide columns are respectively sleeved with a lower shell and an upper shell, and limiting arc grooves are symmetrically opened on the top of the two ends of the base, and a limiting arc block is slidably sleeved on the top of the limiting arc groove, a support shaft is fixedly installed on the top of the limiting arc block, an adjusting shaft is movably installed on the top of the support shaft, a pressure plate is fixedly installed on the top of the adjusting shaft, one end of the pressure plate is located at the top of the side of the upper shell, and the end of the pressure plate is sleeved on the guide column, a support block is fixedly installed on the telescopic end of the first hydraulic cylinder, and the top of the support block is against the middle of the bottom surface of the lower shell, and an oil nozzle is provided in the middle of the top surface of the upper shell.

[0007] Furthermore, a second hydraulic cylinder is fixedly installed inside the support shaft, a limiting groove is provided on the top of the support shaft, an adjusting slider is slidably limited inside the limiting groove, the telescopic shaft of the second hydraulic cylinder extends into the limiting groove and is fixedly connected to the bottom of the adjusting slider, the bottom of the adjusting shaft is cylindrical and is just sleeved on the top outer ring of the support shaft, and the top of the adjusting slider is fixedly connected to the middle of the bottom surface of the adjusting shaft.

[0008] Furthermore, a third hydraulic cylinder is provided on the outside of both ends of the base, and the two ends of the base are fan-shaped. Hydraulic telescopic cylinders are symmetrically fixedly installed on both sides of the two ends of the base, and the hydraulic telescopic cylinders are hydraulically connected to the third hydraulic cylinder. An adjusting arc groove is opened in the middle of both ends of the base, and the top of the adjusting arc groove is connected to the limiting arc groove. An adjusting arc block is slidably sleeved inside the adjusting arc groove, and the top of the adjusting arc block is fixedly connected to the bottom of the limiting arc block. The telescopic shaft of the hydraulic telescopic cylinder passes through the inner wall of the base and extends into the adjusting arc groove, and is fixedly connected to the side of the adjusting arc block.

[0009] Furthermore, threaded barrels are symmetrically fixedly installed on the front and back sides of the lower shell and the upper shell, and a screw ring is threadedly sleeved on the outer circle of the threaded barrel. Four detection blocks are evenly and fixedly installed on the outer circle of the screw ring in a ring shape. The detection block is L-shaped, and an air pressure groove is opened on the side of the detection block facing the center of the screw ring. A supporting slider is slidably sleeved inside the air pressure groove, and one end of the supporting slider extends out of the air pressure groove and is rotatably installed with a roller.

[0010] Furthermore, one end of the supporting slider located inside the air pressure groove is fixedly connected to a piston, the piston and the inner wall of the air pressure groove are in a sliding sealed state, a spring is fixedly connected between the piston and the inner wall of the air pressure groove, a pressure sensor is fixedly installed in the middle of the inner end wall of the air pressure groove, and an air nozzle connected to the inside of the air pressure groove is provided on the outer side of the detection block.

[0011] Furthermore, the four detection blocks are exactly in the correct up, down, left and right positions after the screw ring thread is installed on the threaded barrel. The pressure sensors in the left and right positions control the hydraulic regulation in the third hydraulic cylinder through the hydraulic system, and the pressure sensors in the up and down positions control the hydraulic regulation in the first hydraulic cylinder and the second hydraulic cylinder through the hydraulic system.

[0012] Also included is a method for using the adjustable bearing seat, comprising the following steps:

[0013] S1, the hydraulic pressure of the third hydraulic cylinder acts on the hydraulic telescopic cylinder, thereby driving the telescopic shaft of the hydraulic telescopic cylinder to provide a stable supporting force on both sides of the adjusting arc block, so as to keep the positions of the adjusting arc block and the limiting arc block on the base stable;

[0014] S2. Understand the installation height of the bearing according to the actual working situation, then lift the lower housing to a certain height through the hydraulic drive support block of the first hydraulic cylinder, then install the bearing into the bearing groove of the lower housing, and then cover the upper housing to the upper half of the bearing and combine it with the lower housing to form a whole bearing seat;

[0015] S3, control the telescopic shaft of the second hydraulic cylinder to drive the adjusting slider to retract into the limit groove, and simultaneously drive the adjusting shaft and the pressing plate to move downward, so that the pressing plate is pressed tightly against the top of both ends of the upper shell, and then the inner shaft is installed on the inner ring of the bearing;

[0016] S4. Install the screw ring thread onto the threaded barrels on the front and rear sides of the lower and upper shells. When the screw is screwed to the deepest position, ensure that the four detection blocks are in the correct up, down, left and right positions. At the same time, adjust the air pressure inside the air pressure tank through the air nozzle so that the roller can just touch the outer ring of the inner shaft.

[0017] S5. When the inner shaft rotates, it contacts four parts in front and behind the lower shell and the upper shell respectively. When the pressure detected by the pressure sensors at the left and right positions exceeds the specified range, the third hydraulic cylinder controls the hydraulic telescopic cylinder to adjust the deflection of the arc block, thereby driving the bearing seat to deflect a certain angle as a whole to maintain stability. When the pressure detected by the pressure sensors at the upper and lower positions exceeds the specified range, the first hydraulic cylinder and the second hydraulic cylinder synchronously drive the bearing seat to adjust the height up and down to ensure the working stability of the bearing seat.

[0018] The present application provides an adjustable bearing seat and a method for using the same. A base is provided, and a first hydraulic cylinder and a second hydraulic cylinder are provided on the base to provide a pressing force for the lower shell and the upper shell. Compared with the prior art, the height of the lower shell is adjusted by the first hydraulic cylinder, and the second hydraulic cylinder in the support shaft finally drives the pressure plate to press on the top of the upper shell. In this way, the pressure stability of the lower shell and the upper shell after closing is achieved through the action of the two hydraulic forces, and the synchronous pressing of the two sides can be ensured to avoid uneven force. In addition, the height change of the entire bearing seat can be adjusted by the cooperation of the first hydraulic cylinder and the second hydraulic cylinder, so that the bearing can be installed at different heights, which is convenient for adjustment and does not require other structures.

[0019] By installing screw rings on the front and back sides of the lower shell and the upper shell, and arranging detection blocks on the screw rings, compared with the prior art, the roller on the detection block is used to press against the inner shaft, so that the inner shaft will contact the roller when rotating, and then the pressure is detected by the pressure sensor inside the air pressure groove to judge the coaxiality of the inner shaft and the bearing seat, and then the third hydraulic cylinder, the first hydraulic cylinder and the second hydraulic cylinder are controlled by the hydraulic system feedback to adjust, so that the entire mechanical bearing seat can ensure that the coaxial error is extremely small, thereby improving the stability during operation and avoiding serious bearing loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0021] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a partial structural schematic diagram of the present invention;

[0024] Figure 3 It is a longitudinal half-section view of the overall structure of the present invention;

[0025] Figure 4 It is a transverse half-section view of the base structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the installation and use of the structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the lifting structure of the present invention;

[0028] Figure 7 Schematic diagram of the spiro ring structure of the present invention;

[0029] Figure 8Schematic diagram of the detection block structure of the present invention.

[0030] Wherein: 1. base; 101. limit arc groove; 102. adjustment arc groove; 2. guide column; 3. lower shell; 4. upper shell; 5. first hydraulic cylinder; 501. support block; 6. limit arc block; 7. support shaft; 701. limit groove; 8. adjustment shaft; 9. pressure plate; 10. oil nozzle; 11. second hydraulic cylinder; 12. adjustment slider; 13. third hydraulic cylinder; 14. hydraulic telescopic cylinder; 15. adjustment arc block; 16. threaded cylinder; 17. screw ring; 18. detection block; 1801. air pressure groove; 19. support slider; 20. roller; 21. piston; 22. pressure sensor; 23. spring; 24. air nozzle; 25. inner shaft. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] See also Figure 1-Figure 6 , an adjustable bearing seat, comprising a base 1, a first hydraulic cylinder 5 is fixedly installed in the middle of the top surface of the base 1, guide columns 2 are symmetrically fixedly installed on the top of the base 1 at both sides of the first hydraulic cylinder 5, the tops of the guide columns 2 are respectively sleeved with a lower shell 3 and an upper shell 4, and limited arc grooves 101 are symmetrically opened on the tops of both ends of the base 1, and a limited arc block 6 is slidably sleeved on the top of the limited arc groove 101, a support shaft 7 is fixedly installed on the top of the limited arc block 6, an adjusting shaft 8 is movably installed on the top of the support shaft 7, a pressing plate 9 is fixedly installed on the top of the adjusting shaft 8, one end of the pressing plate 9 is located at the top of the side of the upper shell 4, and the end of the pressing plate 9 is sleeved on the guide column 2, a support block 501 is fixedly installed on the telescopic end of the first hydraulic cylinder 5, and the top of the support block 501 is against the middle of the bottom surface of the lower shell 3, and an oil nozzle 10 is provided in the middle of the top surface of the upper shell 4. At the same time, it also includes a hydraulic system, which is linearly connected to the first hydraulic cylinder 5, the second hydraulic cylinder 11 and the third hydraulic cylinder 13, and can be directly controlled by the hydraulic system to continue hydraulic adjustment.

[0033] The second hydraulic cylinder 11 is fixedly installed inside the support shaft 7. The top of the support shaft 7 is provided with a limit groove 701. The limit groove 701 is slidably limited and sleeved with an adjusting slider 12. The telescopic shaft of the second hydraulic cylinder 11 extends into the limit groove 701 and is fixedly connected to the bottom of the adjusting slider 12. The bottom of the adjusting shaft 8 is cylindrical and just sleeved on the top outer ring of the support shaft 7. The top of the adjusting slider 12 is fixedly connected to the middle of the bottom surface of the adjusting shaft 8. The hydraulic telescopic adjustment of the first hydraulic cylinder 5 and the second hydraulic cylinder 11 can drive the height of the entire bearing seat to be adjusted. In the initial state, the height of the lower housing 3 can be adjusted by the first hydraulic cylinder 5. After the bearing is placed, the second hydraulic cylinder 11 drives the hydraulic pressure to press the upper housing 4 and the lower housing 3. When the height needs to be adjusted later, the first hydraulic cylinder 5 and the second hydraulic cylinder 11 can be synchronously telescoped up and down. It should be noted that in the initial state, the second hydraulic cylinder 11 is in the maximum extension position, which is convenient for the bearing to be placed in the bearing groove of the lower housing 3.

[0034] See also Figure 1-Figure 6 , a third hydraulic cylinder 13 is arranged outside the two ends of the base 1, and the two ends of the base 1 are fan-shaped. The two sides of the two ends of the base 1 are symmetrically fixed with hydraulic telescopic cylinders 14, and the hydraulic telescopic cylinders 14 are hydraulically connected with the third hydraulic cylinder 13. Adjustment arc grooves 102 are opened in the middle of the two ends of the base 1, and the top of the adjustment arc groove 102 is connected with the limit arc groove 101. The adjustment arc block 15 is slidably sleeved inside the adjustment arc groove 102, and the top of the adjustment arc block 15 is fixedly connected with the bottom of the limit arc block 6. The telescopic shaft of the hydraulic telescopic cylinder 14 penetrates the inner wall of the base 1 and extends into the adjustment arc groove 102, and is fixedly connected with the side of the adjustment arc block 15. The hydraulic pressure is provided by the third hydraulic cylinder 13, and acts on the hydraulic telescopic cylinders 14 on both sides of the base 1 respectively, and the hydraulic rod in the hydraulic telescopic cylinder 14 can drive the adjustment arc block 15 to move or stabilize at a certain position, and the sliding angle range of the adjustment arc block 15 in the adjustment arc groove 102 is small, which is only for fine-tuning when the coaxiality of the inner shaft 25 and the bearing seat is not enough.

[0035] See also Figure 1-Figure 8, the front and back sides of the lower shell 3 and the upper shell 4 are symmetrically fixed with threaded barrels 16, the outer ring of the threaded barrel 16 is threadedly sleeved with a screw ring 17, and the two threaded barrels 16 form a full circle, and the screw ring 17 is threadedly sleeved on the outer ring of the full circle formed by the threaded barrel 16. On the one hand, it can detect whether the lower shell 3 and the upper shell 4 are accurately closed and whether the closing pressure is sufficient. On the other hand, it can cooperate with the subsequent detection block 18 to detect whether the coaxiality deviation between the inner shaft 25 installed on the inner ring of the bearing and the bearing seat is large, so as to adjust it through the hydraulic system. The outer ring of the screw ring 17 is annular and evenly fixed with four detection blocks 18. The detection block 18 is L-shaped, and an air pressure groove 1801 is opened on the side of the detection block 18 facing the center of the screw ring 17. A support slider 19 is slidably sleeved inside the air pressure groove 1801, and one end of the support slider 19 extends to the outside of the air pressure groove 1801 and is rotatably installed with a roller 20. The roller 20 can be adjusted so that it contacts and presses against the outer ring of the inner shaft 25. In this way, when the coaxiality difference between the inner shaft 25 and the mechanical bearing seat is large, it will be fed back to the inside of the air pressure groove 1801 by the roller 20 and the support slider 19, and then detected by the pressure sensor 22 and fed back to the hydraulic system.

[0036] A piston 21 is fixedly connected to one end of the support slider 19 located inside the air pressure groove 1801. The piston 21 and the inner wall of the air pressure groove 1801 are in a sliding sealed state. A spring 23 is fixedly connected between the piston 21 and the inner wall of the air pressure groove 1801. A pressure sensor 22 is fixedly installed in the middle of the inner end wall of the air pressure groove 1801, and an air nozzle 24 connected to the inside of the air pressure groove 1801 is provided on the outer side of the detection block 18. The pressure exerted by the roller 20 on the inner shaft 25 will be fed back to the support slider 19, so that the support slider 19 and the piston 21 slide inside the air pressure groove 1801. Since a sliding seal is used between the piston 21 and the inner wall of the air pressure groove 1801, when the sliding range exceeds the preset range, it means that the air pressure inside the air pressure groove 1801 changes greatly. At this time, the pressure value detected by the pressure sensor 22 will be fed back to the hydraulic system, and then the first hydraulic cylinder 5, the second hydraulic cylinder 11 and the third hydraulic cylinder 13 are controlled by the hydraulic system to adjust the bearing seat. In order to deal with different bearings and inner shafts 25, the air pressure inside the air pressure groove 1801 can be set, and the air nozzle 24 can be used for exhaust and air filling, so that it has a wider range of applications.

[0037] See also Figure 5 , Figure 7 , Figure 8After the screw ring 17 is threadedly installed on the threaded barrel 16, the four detection blocks 18 are exactly in the up, down, left and right positions. The pressure sensor 22 at the left and right positions controls the hydraulic regulation in the third hydraulic cylinder 13 through the hydraulic system, and the pressure sensor 22 at the up and down positions controls the hydraulic regulation in the first hydraulic cylinder 5 and the second hydraulic cylinder 11 through the hydraulic system. Through the pressure detection at the up, down, left and right positions, it is judged whether the axis deviation of the inner shaft 25 is too large, and then it is fed back to the hydraulic system for regulation. In this way, adaptive regulation can be achieved to ensure the stability of the mechanical bearing seat, avoid serious loss of the bearing due to the deviation of the inner shaft 25, and thus increase the service life of the bearing.

[0038] A method for using an adjustable bearing seat comprises the following steps:

[0039] S1, the hydraulic pressure of the third hydraulic cylinder 13 acts on the hydraulic telescopic cylinder 14, thereby driving the telescopic shaft of the hydraulic telescopic cylinder 14 to provide a stable supporting force on both sides of the adjusting arc block 15, so as to keep the positions of the adjusting arc block 15 and the limiting arc block 6 on the base 1 stable;

[0040] S2. Understand the installation height of the bearing according to the actual working situation, then lift the lower housing 3 to a certain height through the hydraulic drive support block 501 of the first hydraulic cylinder 5, and then install the bearing into the bearing groove of the lower housing 3, and then cover the upper housing 4 to the upper half of the bearing and combine it with the lower housing 3 to form a whole bearing seat;

[0041] S3, control the telescopic shaft of the second hydraulic cylinder 11 to drive the adjusting slider 12 to retract into the limiting groove 701, and simultaneously drive the adjusting shaft 8 and the pressing plate 9 to move downward, so that the pressing plate 9 is pressed tightly against the top of both ends of the upper shell 4, and then the inner shaft 25 is installed on the inner ring of the bearing;

[0042] S4, thread the screw ring 17 onto the threaded tube 16 on the front and rear sides of the lower shell 3 and the upper shell 4, and ensure that the four detection blocks 18 are in the correct up, down, left and right positions when the screw is screwed to the deepest position, and at the same time adjust the air pressure inside the air pressure groove 1801 through the air nozzle 24 so that the roller 20 can just abut against the outer ring of the inner shaft 25;

[0043] S5. The inner shaft 25 contacts four parts of the lower shell 3 and the upper shell 4 in front and back respectively when rotating. When the pressure detected by the pressure sensors 22 at the left and right positions exceeds the specified range, the third hydraulic cylinder 13 controls the hydraulic telescopic cylinder 14 to adjust the deflection of the arc block 15, thereby driving the bearing seat to deflect a certain angle as a whole to maintain stability. When the pressure detected by the pressure sensors 22 at the upper and lower positions exceeds the specified range, the first hydraulic cylinder 5 and the second hydraulic cylinder 11 synchronously drive the bearing seat to adjust the height up and down to ensure the working stability of the bearing seat.

Claims

1. An adjustable bearing seat, characterized in that: The invention comprises a base (1), a first hydraulic cylinder (5) is fixedly mounted in the middle of the top surface of the base (1), guide columns (2) are symmetrically fixedly mounted on the top of the base (1) at positions on both sides of the first hydraulic cylinder (5), a lower shell (3) and an upper shell (4) are respectively sleeved on the top of the guide columns (2), limiting arc grooves (101) are symmetrically provided on the tops of both ends of the base (1), a limiting arc block (6) is slidably sleeved on the top of the limiting arc groove (101), and a support is fixedly mounted on the top of the limiting arc block (6). A support shaft (7), an adjusting shaft (8) is movably mounted on the top of the support shaft (7), a pressure plate (9) is fixedly mounted on the top of the adjusting shaft (8), one end of the pressure plate (9) is located at the top of the side of the upper shell (4), and the end of the pressure plate (9) is sleeved on the guide column (2), a support block (501) is fixedly mounted on the telescopic end of the first hydraulic cylinder (5), and the top of the support block (501) is against the middle of the bottom surface of the lower shell (3), and an oil nozzle (10) is arranged in the middle of the top surface of the upper shell (4).

2. The adjustable bearing seat according to claim 1, characterized in that: A second hydraulic cylinder (11) is fixedly installed inside the support shaft (7); a limiting groove (701) is provided at the top of the support shaft (7); an adjusting slider (12) is slidably and limitedly sleeved inside the limiting groove (701); a telescopic shaft of the second hydraulic cylinder (11) extends into the limiting groove (701) and is fixedly connected to the bottom of the adjusting slider (12); the bottom of the adjusting shaft (8) is cylindrical and is just sleeved on the top outer ring of the support shaft (7); and the top of the adjusting slider (12) is fixedly connected to the middle of the bottom surface of the adjusting shaft (8).

3. The adjustable bearing seat according to claim 2, characterized in that: A third hydraulic cylinder (13) is provided on the outside of both ends of the base (1). The two ends of the base (1) are fan-shaped. Hydraulic telescopic cylinders (14) are symmetrically fixedly installed on both sides of the two ends of the base (1), and the hydraulic telescopic cylinders (14) are hydraulically connected to the third hydraulic cylinder (13). Adjustment arc grooves (102) are provided in the middle of both ends of the base (1), and the top of the adjustment arc groove (102) is connected to the limit arc groove (101). An adjustment arc block (15) is slidably sleeved inside the adjustment arc groove (102), and the top of the adjustment arc block (15) is fixedly connected to the bottom of the limit arc block (6). The telescopic shaft of the hydraulic telescopic cylinder (14) passes through the inner wall of the base (1) and extends into the adjustment arc groove (102), and is fixedly connected to the side of the adjustment arc block (15).

4. The adjustable bearing seat according to claim 3, characterized in that: The front and back sides of the lower shell (3) and the upper shell (4) are symmetrically fixedly mounted with a threaded barrel (16); the outer ring of the threaded barrel (16) is threadedly sleeved with a screw ring (17); the outer ring of the screw ring (17) is annularly and evenly fixedly mounted with four detection blocks (18); the detection block (18) is L-shaped; a pressure groove (1801) is provided on one side of the detection block (18) facing the center of the screw ring (17); a support slider (19) is slidably sleeved inside the pressure groove (1801); one end of the support slider (19) extends out of the pressure groove (1801) and is rotatably mounted with a roller (20).

5. The adjustable bearing seat according to claim 4, characterized in that: One end of the support slider (19) located inside the air pressure groove (1801) is fixedly connected to a piston (21), and the piston (21) and the inner wall of the air pressure groove (1801) are in a sliding sealing state. A spring (23) is fixedly connected between the piston (21) and the inner wall of the air pressure groove (1801). A pressure sensor (22) is fixedly installed in the middle of the inner end wall of the air pressure groove (1801), and an air nozzle (24) connected to the inside of the air pressure groove (1801) is arranged on the outer side of the detection block (18).

6. The adjustable bearing seat according to claim 5, characterized in that: After the screw ring (17) is threadedly installed on the threaded cylinder (16), the four detection blocks (18) are exactly in the up, down, left and right positions. The pressure sensors (22) in the left and right positions control the hydraulic regulation in the third hydraulic cylinder (13) through the hydraulic system, and the pressure sensors (22) in the up and down positions control the hydraulic regulation in the first hydraulic cylinder (5) and the second hydraulic cylinder (11) through the hydraulic system.

7. A method for using an adjustable bearing seat as claimed in claim 6, characterized in that: The following steps are involved: S1, the hydraulic pressure of the third hydraulic cylinder (13) acts on the hydraulic telescopic cylinder (14), thereby driving the telescopic shaft of the hydraulic telescopic cylinder (14) to provide a stable supporting force on both sides of the adjusting arc block (15), thereby maintaining the stable position of the adjusting arc block (15) and the limiting arc block (6) on the base (1); S2. The installation height of the bearing is understood according to the actual working conditions, and then the lower housing (3) is lifted to a certain height by the hydraulic drive support block (501) of the first hydraulic cylinder (5), and then the bearing is installed in the bearing groove of the lower housing (3), and then the upper housing (4) is covered to the upper half of the bearing and combined with the lower housing (3) to form a whole bearing seat; S3, controlling the telescopic shaft of the second hydraulic cylinder (11) to drive the adjusting slider (12) to retract into the limiting groove (701), and synchronously driving the adjusting shaft (8) and the pressing plate (9) to move downward, so that the pressing plate (9) is pressed tightly against the top of both ends of the upper shell (4), and then the inner shaft (25) is installed on the inner ring of the bearing; S4. Install the screw ring (17) onto the threaded tube (16) on the front and rear sides of the lower shell (3) and the upper shell (4). When the screw is screwed to the deepest position, ensure that the four detection blocks (18) are in the correct up, down, left and right positions. At the same time, adjust the internal air pressure of the air pressure groove (1801) through the air nozzle (24) so ​​that the roller (20) can just abut against the outer ring of the inner shaft (25); S5, the inner shaft (25) contacts the four front and rear parts of the lower shell (3) and the upper shell (4) respectively when rotating. When the pressure detected by the pressure sensors (22) at the left and right positions exceeds a specified range, the third hydraulic cylinder (13) controls the hydraulic telescopic cylinder (14) to adjust the deflection of the arc block (15), thereby driving the bearing seat to deflect by a certain angle as a whole to maintain stability. When the pressure detected by the pressure sensors (22) at the upper and lower positions exceeds a specified range, the first hydraulic cylinder (5) and the second hydraulic cylinder (11) synchronously drive the bearing seat to adjust the height up and down to ensure the working stability of the bearing seat.

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