CN114183458B

CN114183458B - A sliding bearing

Info

Publication number: CN114183458B
Application number: CN202111370755.7A
Authority: CN
Inventors: 黄国栋; 王少秋
Original assignee: Jiangsu Hejie Heavy Industry Technology Co ltd
Current assignee: Jiangsu Hejie Heavy Industry Technology Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2024-11-26
Anticipated expiration: 2041-11-18
Also published as: CN114183458A

Abstract

The invention relates to the technical field of bearings, in particular to a sliding bearing, which comprises a base, wherein screw holes are respectively formed in the left end and the right end of the base, an upper top cover is attached to the upper side of the base, the screw holes are formed in both sides of the upper top cover, the upper top part is movably connected with a rotating handle, the rotating handle is internally provided with an external hole, a bolt penetrates through screw holes on both sides of the base and the upper top cover and a connecting nut of the screw hole, a gap is reserved between the bolt and both sides of the upper top cover, the lower end of the upper top cover is attached to an upper end cover, a bearing body is attached to the lower end of the bearing body, a transverse shaft is arranged in the middle of the bearing body and is connected with a rotating shaft, when the bearing starts to rotate, the bearing starts to rotate between the upper end cover and the lower end cover, in addition, clamping or stopping rotation occurs in the bearing rotation process, the nut can be unscrewed, the bolt is taken out from the base, then the bearing is taken out, the condition of the bearing is convenient to check, the maintenance and maintenance are facilitated, the service life of the bearing and the service life and the service cycle of single work are prolonged.

Description

Sliding bearing

Technical Field

The invention relates to the technical field of bearings, in particular to a sliding bearing.

Background

Along with the development of society, the use of bearing has put forward higher requirement in the production, and the main effect of bearing is that support machinery rotates, guarantees the coefficient of friction of machinery in the rotation process, guarantees rotation efficiency, but the bearing under now has slide bearing integration in the use, exists bearing and base integration production, and it is inconvenient to the maintenance dismantlement of later stage, is unfavorable for maintenance to use, produces heat in slide bearing rotatory in addition, greatly influences slide bearing's life.

Disclosure of Invention

The invention provides a sliding bearing aiming at the problems in the prior art.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a slide bearing, the on-line screen storage device comprises a base, a screw has respectively been seted up at both ends about the base, and the laminating of base top is gone up the top cap, go up the top cap both sides and all open the screw, and go up top swing joint twist grip, the twist grip embeds the external orifice, the screw coupling nut of base and last top cap both sides is passed to the bolt, and the bolt passes base and last top cap both sides and leave the clearance, go up top cap lower extreme laminating upper end cover, laminating bearing body below the upper end cover, laminating lower end cover below the bearing body, the bearing body middle part sets up the cross axle, and connect in the pivot, wherein:

Preferably, the adjusting bolt is connected below the rotating handle, the rotating teeth are meshed below the adjusting bolt, the adjusting bolt penetrates through the rotating teeth and is connected with the fixed rod, the fixed rod is connected with the moving rod, a circle of rigid spring is arranged on the outer side of the moving rod, the lower end of the rigid spring is arranged on the fixed block, a row of sliding grooves are formed in the middle of the fixed block from top to bottom, and the bottom end of the moving rod is arranged on the sliding grooves.

Preferably, the outer hole has been seted up in the middle of the upper end cover, and the upper end cover is inside to be set up the semicircle ring, and the lower extreme cover is connected to upper end cover below, and the inside semicircle ring that is provided with of lower extreme cover, the port of upper semicircle ring both sides alternates in the port of semicircle ring down.

Preferably, the inner annular wall is arranged in the upper semicircular ring, the outer annular wall is arranged on the outer side of the inner annular wall, the supporting frames are arranged in the inner annular wall and the inner annular wall, and the lubricating structure is arranged between the inner annular wall and the inner annular wall.

Preferably, the lubricating structure top sets up the horizontal pole, and the connecting rod is connected to the horizontal pole below, and the oil-out has been seted up to connecting rod top both sides, and the bottom both sides set up the oil inlet, and the connecting rod middle part sets up the gasbag, and the push rod is connected to the connecting rod bottom, and the push rod both ends set up branch, and push rod and branch link to each other through the return spring, and fixed extension spring in branch both ends top, extension spring top connection end block, the connecting rod is hugged closely to the end block both sides, and laminating oil-out, the horizontal pole laminating bearing body.

Preferably, the bearing body is arranged between the upper semicircular ring and the lower semicircular ring, a central shaft is arranged in the middle of the bearing body, the extension part of the outer part of the central shaft is connected with a rotating shaft, and the outer side of the rotating shaft is sleeved with a fan blade.

The invention has the beneficial effects that:

(1) The invention uses the base and the upper top cover to be detached separately, can be installed separately, uses the bolt to pass through the bottom hole of the base, passes through the hole of the upper top cover, then uses the nut to screw the bolt tightly, fixes the two sides of the upper top cover, then, when the bearing starts to rotate, the bearing is convenient to start rotating between the upper end cover and the lower end cover, in addition, the bearing is blocked or stops rotating in the rotating process, the nut can be unscrewed, the bolt is taken out from the base, then, the bearing is taken out, the condition of the bearing is convenient to check, the maintenance and the maintenance are convenient, and the service life of the bearing and the service period of single work are improved.

(2) When the bearing is used, the fixed shaft in the center of the rotating bearing is connected with the rotating shaft, the fan blades on the outer side of the rotating shaft are driven when the bearing rotates, the rotating fan blades are utilized to generate wind to cool the outer part of the bearing, oil in the lubricating mechanism is utilized to cool the inner surface of the bearing, the cross rod is extruded through the annular surface in the bearing, the end block is utilized to extrude the air bag, gas is released, the gas enters the connecting rod, the oil in the connecting rod is pushed to enter the annular surface of the bearing from the oil outlet, the annular surface is fully lubricated, the annular surface can be effectively lubricated, and heat absorption can be carried out on the other side. The life cycle of the bearing can be increased.

Drawings

The invention is further illustrated by the following figures in conjunction with the accompanying drawings and examples.

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the whole of FIG. 1;

FIG. 3 is a schematic view of the upper and lower end caps and bearing structure shown in FIG. 1;

FIG. 4 is a schematic view of the fan blade shown in FIG. 1;

FIG. 5 is a schematic view of the upper and lower semicircular rings shown in FIG. 1;

FIG. 6 is a schematic view of the inner annular wall mechanism shown in FIG. 1;

FIG. 7 is an enlarged view at B shown in FIG. 6;

FIG. 8 is an enlarged view at A shown in FIG. 5;

In the figure: 1. a base; 2. an upper top cover; 3. a bearing; 4. a nut; 5. a bolt; 6. rotating the handle; 7. an adjusting bolt; 8. an upper end cap; 9. a lower end cap; 11. an outer aperture; 12. a rotating shaft; 13. a fan blade; 10. a central shaft; 14. an upper semicircular ring; 141. an inner annular wall; 142. an outer annular wall; 143. a support frame; 15. a lubrication mechanism; 15. a lower semicircular ring; 151. a cross bar; 152. a connecting rod; 153. an oil outlet; 154. an air bag; 155. an oil inlet; 156. a push rod; 157. a return spring; 158. a tension spring; 159. a support rod; 160. an end block; 61. rotating teeth; 62. a fixed rod; 63. a moving rod; 64. a rigid spring; 65. a fixed block; 66. and a sliding groove.

Detailed Description

The technical means, the creation features, the achievement of the purpose and the effect of the present invention are easy to understand, and are further described below in connection with the specific embodiments.

As shown in fig. 1-8, a sliding bearing of the present invention comprises a base 1, a screw hole is respectively provided at the left and right ends of the base 1, an upper top cover 2 is attached above the base 1, screw holes are provided at both sides of the upper top cover 2, the upper top is movably connected with a rotating handle 6, the rotating handle 6 is internally provided with an outer hole 11, a bolt 5 passes through screw hole connecting nuts 4 at both sides of the base 1 and the upper top cover 2, a gap is left between the bolt 5 and both sides of the base 1 and the upper top cover 2, the lower end of the upper top cover 2 is attached to an upper end cover 8, a bearing body 3 is attached to the lower end cover 9 below the upper end cover 8, a cross shaft is provided at the middle of the bearing body 3, and is connected with a rotating shaft 12, wherein:

Specifically, the adjusting bolt 7 is connected below the rotating handle 6, the rotating teeth 61 are meshed below the adjusting bolt 7, the adjusting bolt 7 passes through the rotating teeth 61 and is connected with the fixed rod 62, the fixed rod 62 is connected with the moving rod 63, a circle of rigid spring 64 is arranged outside the moving rod 63, the lower end of the rigid spring 64 is arranged on the fixed block 65, a row of sliding grooves 66 are formed in the middle of the fixed block 65 from top to bottom, and the bottom end of the moving rod 63 is arranged on the sliding grooves 66. In specific work, the handle 6 can be rotated to further control the adjusting bolt 7, the rotating teeth 61 in the upper end cover 8 are rotationally meshed by utilizing the adjusting bolt 7, so that the lower end of the adjusting bolt 7 can push the fixing rod 62 to drive the fixing rod 62 to move downwards, then the fixing rod 62 pushes the moving rod 63 to move downwards, the moving rod 62 can slide downwards along the sliding groove 66 in the middle of the fixing block 65, the rigid spring 64 wound outside the moving rod 63 is in a movable state at the upper end of the original position, the lower end is attached to the fixing block 65, when the fixing rod 62 drives the moving rod 63 to slide downwards, the top of the rigid spring 64 wound outside the moving rod 63 is pressed by the fixing rod 62, the rigid spring 64 starts to move downwards along the outer wall of the moving rod 63, because the bottom of the rigid spring 64 is attached to the fixed block 65, in the downward moving process of the rigid spring 64, the fixed rod 62 pushes the rigid spring 64 to press down, and the fixed block 65 abuts against the rigid spring 64, so that the rigid spring 64 is in a contracted state in the downward moving process along with the fixed rod 62, at this time, the moving rod 63 moves to the bottom along the sliding groove 66, and the adjusting bolt 7 continuously engages with the rotating teeth 61 along with the continuous rotation of the rotating handle 6, the fixed rod 62 continuously moves downward, and drives the moving rod 63 to move downward until the moving rod 63 can push the two ends of the upper semicircular ring 14 into the lower semicircular ring 15, so that the upper semicircular ring 14 moves downward to a proper position, and the bearing body 3 is convenient to rotate.

Specifically, the outer hole 11 has been seted up in the middle of the upper end cover 8, the inside upper semicircular ring 14 that sets up of upper end cover 8, the lower extreme cover 9 is connected to upper end cover 8 below, the inside lower semicircular ring 15 that is provided with of lower end cover 9, the port of upper semicircular ring 14 both sides alternates in the port of lower semicircular ring 15. During specific work, the lower end cover 9 is arranged in the circular recess in the middle of the base 1, then the bearing body 3 is arranged in the lower end cover 9, clamping grooves at two ends of the bearing body 3 are propped against two ends of the lower end cover 9, then the upper end cover 8 is arranged on the bearing body 3, then the upper top cover 2 is arranged on the upper end cover 8, at the moment, the rotating handle 6 can be inserted from the upper top cover 2, then the rotating handle starts to rotate, the adjusting bolt 7 at the lower end of the rotating handle 6 can be meshed with the rotating teeth 61 in the upper end cover 8, and then through the action of the rotating handle 6, two ports of the upper semicircular ring 14 can be downwards moved, and two ports at two sides of the upper semicircular ring 14 enter into the position of the lower semicircular ring 15.

Specifically, an inner annular wall 141 is disposed inside the upper semicircular ring 14, an outer annular wall 142 is disposed outside the inner annular wall 141, a supporting frame 143 is disposed inside the inner annular wall 141 and the inner annular wall 141, and a lubrication structure 15 is disposed between the inner annular wall 141 and the inner annular wall 142. In particular, when the handle 6 starts to rotate downwards, the lower end of the moving rod 63 is utilized to push the outer annular wall 142 of the lower semicircular ring 15, so that the outer annular wall 142 starts to bear force and move downwards, the outer annular wall 142 is acted by the action of the stable supporting frame 143, the lower pressure is acted by the lower pressure, the lower pressure can be transmitted to the inner annular wall 141 under the action of the supporting frame 143, the outer annular wall 142 is continuously pushed by the moving rod 63 to move downwards, the inner annular wall 141 continuously moves inwards, and at the moment, the lubrication mechanism 15 between the inner annular wall 141 and the outer annular wall 142 starts to contact with the bearing body 3.

Specifically, the top of the lubrication structure 15 is provided with a cross rod 151, a connecting rod 152 is connected below the cross rod 151, oil outlets 153 are formed in two sides of the top of the connecting rod 152, oil inlets 155 are formed in two sides of the bottom end of the connecting rod 152, in addition, an air bag 154 is arranged in the middle of the connecting rod 152, the bottom of the connecting rod 152 is connected with a push rod 156, two ends of the push rod 156 are provided with support rods 159, the push rod 156 and the support rods 159 are connected through return springs 157, tension springs 158 are fixed above two ends of the support rods 159, the top of each tension spring 158 is connected with an end block 160, two sides of each end block 160 are tightly attached to the connecting rod 152, And engages the oil outlet 153, and the cross bar 151 engages the bearing body 3. in specific operation, when the bearing body 3 starts to rotate, due to the fact that the bearing body 3 is close to the inner annular wall 141, when the bearing body 3 rotates, due to the fact that the bearing body 3 swings, the annular surface on the outer side of the bearing body 3 can be extruded to the cross rod 151 at the upper end of the lubricating mechanism 15 during rotation, so that the cross rod 151 starts to be extruded towards the inside, the connecting rod 152 is pushed to move downwards, due to the fact that the rotating speed of the bearing body 3 is high, the extrusion speed of the annular surface on the outer side of the bearing body 3 is too high, the pressing force exerted on the cross rod 151 is too high, the downward movement speed of the connecting rod 152 is high, the pushing rod 156 connected with the lower end of the connecting rod 152 is enabled to extrude the supporting rod 159 at a very high speed, The strut 159 is made to move rapidly downwards, and in addition, due to the end block 160 connected with the tension spring 158, the strut 159 can move downwards together with the end block 160 in the process of moving downwards, due to the fact that in the static state, the inner side of the end block 160 is propped against the oil outlet 153, then when the bearing body 3 rotates, the cross rod 151 is pressed, the push rod 156 is driven to press the strut 159, so that the end block 160 starts to move downwards, due to the fact that the outer side of the end block 160 slides tightly against the notch, when the inner side of the end block 160 slides to the air bag 154, the air bag 154 starts to be pressed, the air inside the air bag 154 is filled into the connecting rod 152, The released gas begins to squeeze the oil, pushing the oil toward the oil outlet 153, after which the oil in the outer annular wall 142 begins to enter the oil inlet 155, and because the end block 160 and the air bag 154 are in contact at this time, the oil in the interior of the connecting rod 152 rapidly flows out toward the oil outlet 153 when the end block 160 squeezes the air bag 154, and further, during the downward movement of the end block 160, the tension spring 158 begins to contract, and when the end block 160 moves to the moved position, the tension spring 158, which is in contraction, begins to push the end block 160 upward, such that the end block 160 returns to the original position again, Against oil outlet 153, before that, rod 152 starts to push rod 159 downwards, push rod 156 and the bottom of rod 159 are connected with return spring 157, when rod 159 moves downwards quickly, return spring 157 starts to stretch from its initial rotation state, when rod 159 stretches return spring 157 to the maximum extent, return spring 157 starts to shrink, return spring 157 starts to drive rod 159 to move upwards, rod 159 simultaneously pushes extension spring 158 upwards, and extension spring 158 drives end block 160 to move upwards.

Specifically, the bearing body 3 is arranged between the upper semicircular ring 14 and the lower semicircular ring 17 and the lower semicircular ring 15, a central shaft 10 is arranged in the middle of the bearing body 3, a rotating shaft 12 is connected to an extension part of the outer portion of the central shaft 10, and a fan blade 13 is sleeved on the outer side of the rotating shaft 12. When the bearing body 3 is arranged between the upper end cover 8 and the lower end cover 9, under the action of the rotating handle 6, the bearing body 3 is close to the inner annular wall 141 in the upper semicircular ring 14 inside the upper end cover 8, in addition, a fixed shaft is arranged at the center position of the bearing body 3, and penetrates through the bearing body 3, one end of the fixed shaft is connected with the rotating shaft 12, and the fan blade 13 is fixed at the outer side of the rotating shaft 12.

The working principle of the sliding bearing provided by the invention is as follows: firstly, the lower end cover 9 is placed in a circular recess in the middle of the base 1, then the bearing body 3 is placed in the lower end cover 9, clamping grooves at two ends of the bearing body 3 are propped against two ends of the lower end cover 9, then the upper end cover 8 is placed on the bearing body 3, then the upper top cover 2 is placed on the upper end cover 8, at the moment, the rotating handle 6 can be inserted from the upper top cover 2, then the rotating handle starts to rotate, the adjusting bolt 7 at the lower end of the rotating handle 6 can be meshed with the rotating teeth 61 in the upper end cover 8, and then through the action of the rotating handle 6, two ports of the upper semicircular ring 14 can be downwards moved, so that two ports at two sides of the upper semicircular ring 14 enter the position of the lower semicircular ring 15. At this time, the handle 6 can be turned to control the adjusting bolt 7, the rotating teeth 61 in the upper end cover 8 are rotationally engaged by the adjusting bolt 7, so that the lower end of the adjusting bolt 7 can push the fixing rod 62, the fixing rod 62 is driven to move downwards, then the fixing rod 62 pushes the moving rod 63 to move downwards, so that the moving rod 62 can slide downwards along the sliding groove 66 in the middle of the fixing rod 65, the rigid spring 64 wound on the outer side of the moving rod 63 is in an active state at the upper end of the original position, the lower end is attached to the fixing block 65, when the fixing rod 62 drives the moving rod 63 to slide downwards, the top of the rigid spring 64 wound on the outer side of the moving rod 63 is subjected to the downward pressure of the fixing rod 62, the rigid spring 64 starts to move downwards along the outer wall of the moving rod 63, the rigid spring 64 abuts against the rigid spring 64 due to the attachment of the fixing block 65 at the bottom of the rigid spring 64, the rigid spring 64 is pushed downwards in the downward moving process along with the fixing rod 62, the rigid spring 64 is in a contracted state, the rigid spring 64 moves to the bottom along the sliding groove 66, the rotating handle 6 is attached to the lower end, the adjusting bolt 63 is continuously moved downwards along with the rotating teeth 61, the semi-circular ring body 14 is continuously moved downwards, and the semi-circular ring body is conveniently moves downwards, and the rotating body is continuously moved, and the rotating body is continuously, and the rotating body is kept downwards.

When the bearing body 3 starts to rotate, due to the fact that the bearing body 3 is close to the inner annular wall 141, when the bearing body 3 rotates, due to the fact that the bearing body 3 swings, the annular surface on the outer side of the bearing body 3 presses the cross rod 151 at the upper end of the lubricating mechanism 15 during rotation, so that the cross rod 151 starts to press inwards, the connecting rod 152 is pushed downwards, due to the fact that the rotating speed of the bearing body 3 is high, the pressing speed of the annular surface on the outer side of the bearing body 3 is too high, the pressing force exerted on the cross rod 151 is too high, the downward moving speed of the connecting rod 152 is high, the pressing force is high, the push rod 156 connected with the lower end of the connecting rod 152 presses the supporting rod 159 at a very high speed, the supporting rod 159 moves downwards quickly, moreover due to the end block 160 connected with the extension spring 158, the end block 160 can be pushed downwards together during the downward moving of the supporting rod 159, due to the static state, the inner side of the end block 160 is pressed against the oil outlet 153, and then when the bearing body 3 rotates, the cross rod 151 is pressed, the push rod 156 is driven to press the strut 159, so that the end block 160 starts to move downwards, because the outer side of the end block 160 slides tightly against the notch, when the inner side of the end block 160 slides to the air bag 154, the air inside the air bag 154 is caused to be filled into the connecting rod 152, the released air starts to press the oil liquid, the oil liquid is pushed to move towards the oil outlet 153, because the oil liquid inside the air bag 154 is initially located in the space between the outer annular wall 141 and the upper end cover 8, the oil liquid can freely enter the oil inlet 155 when the machine is stationary or works, because the end block 160 and the air bag 154 are in contact at this time, the oil liquid inside the connecting rod 152 rapidly flows out towards the oil outlet 153 when the end block 160 presses the air bag 154, in addition, during the downward movement of the end block 160, the tension spring 158 starts to shrink, when the end block 160 moves to the moving position, the shrinkage tension spring 158 starts to push the end block 160 upwards, so that the end block 160 returns to the initial position to prop against the oil outlet 153, before that, the connecting rod 152 starts to push the support rod 159 downwards, the push rod 156 and the bottom of the support rod 159 are connected with the return spring 157, when the support rod 159 moves downwards rapidly, the return spring 157 starts to stretch from the initial rotation state, when the support rod 159 stretches the return spring 157 to the maximum extent, the return spring 157 starts to shrink, the return spring 157 starts to drive the support rod 159 to move upwards, and the support rod 159 simultaneously pushes the tension spring 158 to move upwards, and the tension spring 158 drives the end block 160 to move upwards.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing examples, and that the foregoing description and description are merely illustrative of the principles of this invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A sliding bearing, characterized in that: the novel bearing comprises a base (1), wherein screw holes are respectively formed in the left end and the right end of the base (1), an upper top cover (2) is attached to the upper side of the base (1), screw holes are formed in the two sides of the upper top cover (2), a rotating handle (6) is movably connected to the upper top, an outer hole (11) is formed in the rotating handle (6), a bolt (5) penetrates through screw hole connecting nuts (4) on the two sides of the base (1) and the upper top cover (2), a gap is reserved between the bolt (5) and the two sides of the base (1) and the upper top cover (2), an upper end cover (8) is attached to the lower end of the upper top cover (2), a bearing body (3) is attached to the lower end cover (9) below the bearing body (3);

An outer hole (11) is formed in the middle of the upper end cover (8), an upper semicircular ring (14) is arranged in the upper end cover (8), a lower end cover (9) is connected below the upper end cover (8), a lower semicircular ring (15) is arranged in the lower end cover (9), and ports on two sides of the upper semicircular ring (14) are inserted into ports of the lower semicircular ring (15);

An inner annular wall (141) is arranged inside the upper semicircular ring (14), an outer annular wall (142) is arranged outside the inner annular wall (141), supporting frames (143) are arranged inside the inner annular wall (141) and the outer annular wall (142), and a lubricating structure is arranged between the inner annular wall (141) and the outer annular wall (142);

The lubricating structure top sets up horizontal pole (151), connecting rod (152) are connected to horizontal pole (151) below, oil-out (153) have been seted up to connecting rod (152) top both sides, and bottom both sides set up oil inlet (155), connecting rod (152) middle part sets up gasbag (154), push rod (156) are connected to connecting rod (152) bottom, push rod (156) both ends set up branch (159), push rod (156) and branch (159) link to each other through return spring (157), fixed extension spring (158) in branch (159) both ends top, extension spring (158) top connection end block (160), connecting rod (152) are hugged closely to end block (160) both sides, and laminating oil-out (153), and horizontal pole (151) laminating bearing body (3);

The bearing body (3) is internally arranged between the upper semicircular ring (14) and the lower semicircular ring (15), a central shaft (10) is arranged in the middle of the bearing body (3), a rotating shaft (12) is connected to the extending part of the outer part of the central shaft (10), and a fan blade (13) is sleeved on the outer side of the rotating shaft (12);

the adjustable rotary handle is characterized in that an adjusting bolt (7) is connected below the rotary handle (6), rotary teeth (61) are meshed below the adjusting bolt (7), the adjusting bolt (7) penetrates through the rotary teeth (61) and is connected with a fixed rod (62), the fixed rod (62) is connected with a movable rod (63), a circle of rigid spring (64) is arranged on the outer side of the movable rod (63), the lower end of the rigid spring (64) is arranged on a fixed block (65), a row of sliding grooves (66) are formed in the middle of the fixed block (65) from top to bottom, and the bottom end of the movable rod (63) is arranged on the sliding grooves (66);

When the bearing body (3) starts to rotate, due to the fact that the bearing body (3) is close to the inner annular wall (141), when the bearing body (3) rotates, due to the fact that the bearing body (3) swings, the outer annular surface of the bearing body (3) can be extruded to the cross rod (151) at the upper end of the lubricating structure when rotating, so that the cross rod (151) starts to be extruded inwards, the connecting rod (152) is pushed to move downwards, due to the fact that the rotating speed of the bearing body (3) is high, the extrusion speed of the outer annular surface of the bearing body (3) is too high, the lower pressure exerted on the cross rod (151) is too high, the connecting rod (152) moves downwards fast and is high in pressure, the push rod (156) connected with the lower end of the connecting rod (152) is extruded with a very fast speed, the end block (160) connected with the support rod (159) is extruded downwards, in addition, the end block (160) is pushed downwards together with the end block (160) in the process of downward movement of the support rod (159), in a static state, the inner side of the end block (160) is pushed against the inner annular surface of the bearing body (3), after the end block (153) is extruded to the end block (160) in a close state, the end block (160) is extruded tightly when the end block (153) is extruded, and the end block (160) is extruded tightly is extruded and the end block (160) is extruded tightly, starting to squeeze the bladder (154), causing gas inside the bladder (154) to fill inside the connecting rod (152), releasing gas to begin squeezing oil, pushing oil to move towards the oil outlet (153), since the oil inside is initially in the space inside the middle of the outer annular wall (142) and the upper end cover (8), the oil can freely enter the oil inlet (155) no matter when the machine is stationary or working, because the end block (160) and the bladder (154) are in contact, the oil outlet (153) is in an open state, when the end block (160) squeezes the bladder (154), the oil inside the connecting rod (152) rapidly flows towards the oil outlet (153), in addition, during the downward movement of the end block (160), the tension spring (158) begins to shrink, when the end block (160) moves to a moving position, the contracted tension spring (158) begins to push the end block (160) upwards, so that the oil outlet (153) can freely enter the starting position, before the support rod (152) begins to push the rod (159) downwards, and simultaneously, when the rod (157) returns to the initial state (157) rapidly, the tension spring (157) returns to the initial state, and the rod (157) returns to the initial state when the rod (157) is connected to the initial state, the return spring (157) starts to shrink, the return spring (157) starts to drive the supporting rod (159) to move upwards, the supporting rod (159) simultaneously pushes the tension spring (158) to move upwards, and the tension spring (158) drives the end block (160) to move upwards.