Rolling bearing arrangement with rotatable bearing plate

Abstract

This invention relates to the field of rolling bearing pressure plate technology and discloses a rolling bearing device with a rotatable bearing pressure plate. The device includes a bearing housing, an outer bearing ring mounted in the inner cavity of the bearing housing, an inner bearing ring rotatably connected to the inner cavity of the outer bearing ring, a seal fixedly mounted on the inner wall of the outer bearing ring, and balls rotatably connected to the outer wall of the inner bearing ring. A rotating pressure plate assembly is provided at the end of the inner bearing ring. This rolling bearing device with a rotatable bearing pressure plate converts the centrifugal force generated by rotation into an axial force through the pressure plate assembly that rotates with the inner bearing ring. Utilizing the characteristic that centrifugal force changes with rotational speed, it achieves dynamic axial positioning of the outer bearing ring. Compared to traditional statically fixed pressure plates, this device can automatically increase the clamping force under high-speed conditions, effectively suppressing axial movement of the outer bearing ring, avoiding loosening, uneven loading, and outer ring deformation problems, and significantly improving the bearing's operational stability.

Description

Technical Field

[0001] This invention relates to the field of rolling bearing pressure plate technology, specifically to a rolling bearing device with a rotatable bearing pressure plate. Background Technology

[0002] Rolling bearings are widely used support and transmission components in mechanical equipment. The bearing pressure plate is a key structural component assembled at the end of the bearing to axially limit, fix and press the inner or outer ring of the bearing. Its main function is to prevent the bearing from axially moving during operation and to ensure the stability of bearing operation and transmission accuracy.

[0003] Traditional bearing pressure plates typically use fixed pressure plates, end caps, or lock nuts to axially limit the outer ring during use. These structures are mostly static fixing methods and cannot dynamically adjust the clamping force according to the bearing's operating state. Under high-speed and heavy-load conditions, problems such as loosening, uneven loading, or outer ring extrusion deformation are prone to occur, making it difficult to meet the stable limiting requirements. Meanwhile, traditional bearing lubrication systems are mostly independent external structures that require an additional power source to drive the grease delivery. These systems are complex, occupy a large space, and cannot be linked with the bearing operation. Alternatively, lubrication can be performed manually. When the bearing rotates at high speed, the grease supply may be untimely or uneven, which can lead to increased friction and excessive temperature rise at the mating parts of the rolling elements and the inner and outer rings, reducing the bearing's service life and increasing the equipment failure rate. Summary of the Invention

[0004] The present invention provides a rolling bearing device with a rotatable bearing pressure plate, which solves the problems mentioned in the background art.

[0005] The present invention provides the following technical solution: a rolling bearing device with a rotatable bearing pressure plate, comprising a bearing housing, an outer bearing ring installed in the inner cavity of the bearing housing, an inner bearing ring rotatably connected to the inner cavity of the outer bearing ring, a seal fixedly fitted on the inner wall of the outer bearing ring, balls rollingly connected to the outer wall of the inner bearing ring, a rotating pressure plate assembly at the end of the inner bearing ring, a limit end seat fixedly fitted at the end of the outer bearing ring, a grease guide hole opened on the outer wall of the outer bearing ring, and a linkage lubrication assembly at the top of the bearing housing.

[0006] As a preferred technical solution of the present invention: the rotating pressure plate assembly includes a bearing pressure plate body, a connecting plate is fixedly assembled at one end of the bearing pressure plate body away from the inner ring of the bearing, a locking bolt is threadedly connected to the inner wall of the connecting plate, a pushing protrusion is fixedly assembled on the outer wall of the bearing pressure plate body, a guide frame is fixedly assembled on the side of the bearing pressure plate body close to the inner ring of the bearing, and a centrifugal wedge is movably sleeved on the outer wall of the guide frame.

[0007] As a preferred embodiment of the present invention: the locking bolts are threadedly connected to the inner walls of the connecting plate and the inner ring of the bearing, and there are two bearing pressure plate bodies, which are respectively installed at both ends of the inner ring of the bearing.

[0008] As a preferred technical solution of the present invention: the bearing pressure plate body is fixedly assembled to the end of the bearing inner ring by a connecting plate and locking bolts, and the centrifugal wedge block has an oblique cut on the side near the bearing inner ring.

[0009] As a preferred embodiment of the present invention: the linkage lubrication assembly includes a support frame, a drive disk is rotatably connected to the inner wall of the support frame, a crank is fixedly mounted on the end of the drive disk away from the support frame, a connecting rod is rotatably connected to the end of the crank away from the drive disk, a reciprocating push rod is movably sleeved on the inner wall of the bearing seat, a return spring is movably sleeved on the outer wall of the reciprocating push rod, and an active coupling sleeve is fixedly mounted on the end of the drive disk away from the crank.

[0010] As a preferred embodiment of the present invention: a linkage pin is movably sleeved in the inner cavity of the active coupling sleeve; a grease pump housing is fixedly mounted on the top of the bearing seat; a pump chamber is opened in the inner cavity of the grease pump housing; a grease pump rotor is rotatably connected to the inner cavity of the grease pump housing; grease pump blades are movably sleeved on the inner wall of the grease pump rotor; a driven coupling sleeve is fixedly mounted on the end of the grease pump rotor; a grease storage tank is fixedly mounted on the top of the grease pump housing; and a grease outlet is fixedly mounted on the outer wall of the grease pump housing.

[0011] As a preferred embodiment of the present invention: the reciprocating push rod penetrates the inner wall of the bearing seat and contacts the pushing convex plate; the two ends of the return spring are respectively connected to the outer wall of the bearing seat and the end of the return spring near the connecting rod; and the length of the return spring when it is stationary and not under force is half the length of the reciprocating push rod.

[0012] As a preferred embodiment of the present invention: the end of the connecting rod away from the crank is rotatably connected to the end of the reciprocating push rod; the outer wall shape of the linkage pin matches the inner wall shape of the driving coupling sleeve and the driven coupling sleeve; and the inner cavity of the grease pump housing communicates with the inner cavities of the grease outlet and the grease storage tank, respectively.

[0013] As a preferred embodiment of the present invention: the length of the linkage pin is less than the length of the inner cavity of the driving coupling sleeve, both ends of the grease pump rotor are equipped with driven coupling sleeves, and the inner cavity of the grease storage tank is filled with lubricating grease.

[0014] As a preferred embodiment of the present invention: the outer wall diameter of the bearing outer ring matches the inner wall diameter of the bearing housing, and the outer wall shapes of the opposing surfaces of the limiting end seat and the centrifugal wedge match.

[0015] The present invention has the following beneficial effects: 1. This rolling bearing device with a rotatable bearing pressure plate converts the centrifugal force generated by the rotation into an axial force through the pressure plate assembly that rotates with the inner ring of the bearing. By utilizing the characteristic that the centrifugal force changes with the rotational speed, it achieves dynamic axial positioning of the outer ring of the bearing. Compared with the traditional static fixed pressure plate, this device can automatically increase the clamping force under high-speed conditions, effectively suppressing the axial movement of the outer ring of the bearing, avoiding loosening, uneven loading and outer ring deformation problems, and greatly improving the operating stability of the bearing.

[0016] 2. This rolling bearing device with a rotatable bearing pressure plate forms a linkage structure with the lubrication pump assembly through a pushing cam, reciprocating push rod, crank connecting rod mechanism, and other components on the rotating pressure plate assembly. It eliminates the need for an external motor, oil pump, or other independent power source, relying solely on the bearing's own rotational power to achieve automatic and quantitative grease delivery. The lubrication process is completely synchronized with the bearing's operation, continuously delivering grease through the grease guide hole into the fit gap between the bearing's outer and inner rings, providing ample lubrication to the balls. This significantly reduces frictional resistance and operating temperature rise, minimizes component wear, simplifies equipment structure, reduces installation space, eliminates the need for manual lubrication and external lubrication systems, and improves the overall service life and maintenance convenience of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the bearing housing of the present invention; Figure 3 This is a schematic diagram of the bearing outer ring structure of the present invention; Figure 4 This is a schematic diagram of the bearing inner ring structure of the present invention; Figure 5 This is a schematic diagram of the bearing pressure plate body structure of the present invention; Figure 6 This is a schematic diagram of the guide frame structure of the present invention; Figure 7 This is a schematic diagram of the convex plate structure of the present invention; Figure 8 This is a schematic diagram of the drive disk structure of the present invention; Figure 9 This is a schematic diagram of the grease pump housing structure of the present invention; Figure 10 This is a schematic diagram of the grease pump rotor structure of the present invention.

[0018] In the diagram: 1. Bearing housing; 2. Bearing outer ring; 3. Bearing inner ring; 4. Seal; 5. Ball bearing; 6. Rotary pressure plate assembly; 7. Limiting end seat; 8. Grease guide hole; 9. Linkage lubrication assembly; 601. Bearing pressure plate body; 602. Connecting plate; 603. Locking bolt; 604. Pushing convex plate; 605. Guide frame; 606. Centrifugal wedge block; 901. Support frame; 902. Drive disc; 903. Crank; 904. Connecting rod; 905. Reciprocating push rod; 906. Return spring; 907. Drive coupling sleeve; 908. Linkage pin; 909. Grease pump housing; 9010. Pump chamber; 9011. Grease pump rotor; 9012. Grease pump blades; 9013. Driven coupling sleeve; 9014. Grease reservoir; 9015. Grease outlet. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-10 A rolling bearing device with a rotatable bearing pressure plate includes a bearing housing 1, an outer bearing ring 2 installed in the inner cavity of the bearing housing 1, an inner bearing ring 3 rotatably connected to the inner cavity of the outer bearing ring 2, a seal 4 fixedly assembled on the inner wall of the outer bearing ring 2, balls 5 rollingly connected to the outer wall of the inner bearing ring 3, a rotating pressure plate assembly 6 at the end of the inner bearing ring 3, a limit end seat 7 fixedly assembled at the end of the outer bearing ring 2, a grease guide hole 8 on the outer wall of the outer bearing ring 2, and a linkage lubrication assembly 9 on the top of the bearing housing 1.

[0021] In the above structure, the bearing outer ring 2 is provided in the inner cavity of the bearing housing 1, and the bearing inner ring 3 is rotatably connected in the inner cavity of the bearing outer ring 2. The ball bearing 5 is placed between the bearing outer ring 2 and the bearing inner ring 3 to support the bearing outer ring 2. The sealing element 4 provides a relatively closed effect between the bearing outer ring 2 and the bearing inner ring 3, so that after the bearing outer ring 2 and the bearing inner ring 3 are installed in the inner cavity of the bearing housing 1, they can stably support the rotating shaft passing through the inner cavity of the bearing inner ring 3.

[0022] In a preferred embodiment: the rotating pressure plate assembly 6 includes a bearing pressure plate body 601, a connecting plate 602 is fixedly mounted on the end of the bearing pressure plate body 601 away from the bearing inner ring 3, a locking bolt 603 is threadedly connected to the inner wall of the connecting plate 602, a pushing protrusion 604 is fixedly mounted on the outer wall of the bearing pressure plate body 601, a guide frame 605 is fixedly mounted on the side of the bearing pressure plate body 601 close to the bearing inner ring 3, and a centrifugal wedge 606 is movably sleeved on the outer wall of the guide frame 605.

[0023] In the above structure, the centrifugal wedge 606 provided on the outer wall of the guide frame 605 allows the bearing pressure plate body 601 to be installed and connected to the bearing inner ring 3. The rotating shaft passing through the inner cavity of the bearing inner ring 3 will drive the bearing inner ring 3 to rotate. After the bearing pressure plate body 601 is installed at the end of the bearing inner ring 3, the bearing pressure plate body 601 can rotate with the rotation of the bearing inner ring 3. When the bearing pressure plate body 601 rotates, the centrifugal force generated will cause the centrifugal wedge 606 to move along the outer wall of the guide frame 605, causing the centrifugal wedge 606 to move towards the limiting end seat 7, thereby generating an axial thrust on the limiting end seat 7. The axial thrust generated is directed towards the inner cavity of the bearing seat 1, thereby restricting the bearing outer ring 2 and better fixing the bearing outer ring 2 in the inner cavity of the bearing seat 1.

[0024] In a preferred embodiment: the locking bolts 603 are threadedly connected to the inner walls of the connecting plate 602 and the bearing inner ring 3 respectively, and there are two bearing pressure plate bodies 601, and the two bearing pressure plate bodies 601 are respectively installed at both ends of the bearing inner ring 3.

[0025] In the above structure, the connecting plate 602 is fixed to the end of the bearing inner ring 3 by the locking bolt 603, so that the bearing pressure plate body 601 can rotate with the rotation of the bearing inner ring 3. When the bearing pressure plate body 601 rotates, under the action of centrifugal force, the centrifugal wedge 606 moves towards the limiting end seat 7. Under the action of the centrifugal wedge 606 and the inclined surface of the limiting end seat 7, an axial thrust is generated on the limiting end seat 7. When the bearing pressure plate bodies 601 at both ends of the bearing inner ring 3 rotate at the same time, the centrifugal wedges 606 on both sides generate an inward axial thrust on the limiting end seat 7, thereby stably restricting the bearing outer ring 2 in the inner cavity of the bearing seat 1 and ensuring the stability of the bearing outer ring 2 during operation.

[0026] In a preferred embodiment, the bearing pressure plate body 601 is fixedly assembled to the end of the bearing inner ring 3 by a connecting plate 602 and a locking bolt 603, and the centrifugal wedge 606 has a beveled surface on the side near the bearing inner ring 3.

[0027] In the above structure, by making the outer walls of the centrifugal wedge 606 and the limiting end seat 7 obliquely cut, when the centrifugal wedge 606 moves towards the limiting end seat 7 under the action of centrifugal force, it can generate an axial thrust on the limiting end seat 7, thereby causing the limiting end seat 7 to move inward. Under the joint action of multiple centrifugal wedges 606 on both sides, the outer ring 2 of the bearing is stably restricted in the inner cavity of the bearing housing 1, ensuring that the outer ring 2, the inner ring 3, and the balls 5 of the bearing can run stably.

[0028] In a preferred embodiment: the linkage lubrication assembly 9 includes a support frame 901, a drive disc 902 is rotatably connected to the inner wall of the support frame 901, a crank 903 is fixedly mounted on the end of the drive disc 902 away from the support frame 901, a connecting rod 904 is rotatably connected to the end of the crank 903 away from the drive disc 902, a reciprocating push rod 905 is movably sleeved on the inner wall of the bearing seat 1, a return spring 906 is movably sleeved on the outer wall of the reciprocating push rod 905, and an active coupling sleeve 907 is fixedly mounted on the end of the drive disc 902 away from the crank 903.

[0029] In the above structure, the reciprocating push rod 905 and the return spring 906 movably sleeved on the outer wall of the reciprocating push rod 905, when the bearing pressure plate body 601 rotates with the inner ring 3 of the bearing, the push plate 604 can push the reciprocating push rod 905. With the return spring 906 pulling and returning the reciprocating push rod 905, the reciprocating push rod 905 can generate a reciprocating motion effect during the continuous rotation of the bearing pressure plate body 601, thereby pushing the connecting rod 904 to swing, which in turn drives the crank 903 and the drive disc 902 to rotate, converting the linear reciprocating motion of the reciprocating push rod 905 into the rotational motion of the drive disc 902, so that the drive disc 902 rotates under the support of the support frame 901.

[0030] In a preferred embodiment: a linkage pin 908 is movably sleeved in the inner cavity of the active coupling sleeve 907; a grease pump housing 909 is fixedly mounted on the top of the bearing seat 1; a pump chamber 9010 is opened in the inner cavity of the grease pump housing 909; a grease pump rotor 9011 is rotatably connected to the inner cavity of the grease pump housing 909; grease pump blades 9012 are movably sleeved on the inner wall of the grease pump rotor 9011; a driven coupling sleeve 9013 is fixedly mounted at the end of the grease pump rotor 9011; a grease reservoir 9014 is fixedly mounted on the top of the grease pump housing 909; and a grease outlet 9015 is fixedly mounted on the outer wall of the grease pump housing 909.

[0031] In the above structure, by using a linkage pin 908 provided in the inner cavity of the driving coupling sleeve 907, the linkage pin 908 is pushed into the inner cavity of the driven coupling sleeve 9013, connecting the driven coupling sleeve 9013 and the driving coupling sleeve 907 in series. When the drive disk 902 rotates, the linkage pin 908 transmits the power of the drive disk 902's rotation, causing the driven coupling sleeve 9013 to rotate along with the rotation of the driving coupling sleeve 907 and the drive disk 902, so as to facilitate the grease... The pump rotor 9011 rotates within the pump chamber 9010. As the grease pump rotor 9011 and the grease pump blades 9012 rotate, they drive the grease in the grease reservoir 9014, allowing the grease in the grease reservoir 9014 to be introduced into the bearing housing 1 through the grease outlet 9015. The grease is then released between the outer ring 2 and the inner ring 3 of the bearing through the grease guide hole 8, thus lubricating the operation of the outer ring 2 and the inner ring 3 of the bearing.

[0032] In a preferred embodiment: the reciprocating push rod 905 penetrates the inner wall of the bearing seat 1 and contacts the pushing protrusion 604, the two ends of the return spring 906 are respectively connected to the outer wall of the bearing seat 1 and the end of the return spring 906 near the connecting rod 904, and the length of the return spring 906 at rest and without force is half the length of the reciprocating push rod 905.

[0033] In the above structure, the return spring 906, which is movably sleeved on the outer wall of the reciprocating push rod 905, moves away from the outer ring 2 of the bearing after the reciprocating push rod 905 is pushed by the push plate 604. During this process, the return spring 906 is stretched. When the push plate 604 stops pushing the reciprocating push rod 905 as the bearing pressure plate body 601 rotates again, the stretched return spring 906 will pull the reciprocating push rod 905 to reset. During this process, the reciprocating push rod 905 reciprocates, thereby realizing the rotational drive of the drive disk 902.

[0034] In a preferred embodiment: the end of the connecting rod 904 away from the crank 903 is rotatably connected to the end of the reciprocating push rod 905; the outer wall shape of the linkage pin 908 matches the inner wall shape of the driving coupling sleeve 907 and the driven coupling sleeve 9013; and the inner cavity of the grease pump housing 909 communicates with the inner cavities of the grease outlet 9015 and the grease storage tank 9014, respectively.

[0035] In the above structure, the two ends of the connecting rod 904 are rotatably connected to the ends of the reciprocating push rod 905 and the crank 903, respectively. With the reciprocating motion of the reciprocating push rod 905, the connecting rod 904 is driven to swing. During the swing, the driving disc 902 is driven, and the driving disc 902 rotates under the support of the support frame 901, thereby driving the active coupling sleeve 907 and pushing the linkage pin 908. The linkage pin 908 enters the inner cavity of the driven coupling sleeve 9013, transmitting the rotational power of the active coupling sleeve 907 and the linkage pin 908 to the driven coupling sleeve 9013. This causes the grease pump rotor 9011 to rotate in the inner cavity of the pump chamber 9010, thereby driving the grease and releasing the grease into the inner cavity of the bearing housing 1 through the grease outlet 9015.

[0036] In a preferred embodiment: the length of the linkage pin 908 is less than the length of the inner cavity of the driving coupling sleeve 907, both ends of the grease pump rotor 9011 are equipped with driven coupling sleeves 9013, and the inner cavity of the grease reservoir 9014 is filled with lubricating grease.

[0037] In the above structure, by setting linkage pins 908 in the inner cavities of the active coupling sleeves 907 on both sides, when it is necessary to release grease into the inner cavity of the bearing housing 1, the linkage pins 908 are manually pushed into the driven coupling sleeve 9013, and the driven coupling sleeve 9013 is linked with the active coupling sleeve 907 to drive the grease pump rotor 9011. During the rotation of the grease pump rotor 9011 and the grease pump blade 9012 in the inner cavity of the pump chamber 9010, the grease in the inner cavity of the grease reservoir 9014 can be driven, so that the grease in the inner cavity of the grease reservoir 9014 is released into the inner cavity of the bearing housing 1 through the grease outlet 9015, and then guided into the space between the outer ring 2 and the inner ring 3 of the bearing through the grease guide hole 8 opened on the outer wall of the outer ring 2 of the bearing.

[0038] In a preferred embodiment: the outer wall diameter of the bearing outer ring 2 matches the inner wall diameter of the bearing housing 1, and the outer wall shapes of the opposing surfaces of the limiting end seat 7 and the centrifugal wedge 606 match.

[0039] In the above structure, by setting the limiting end seat 7 at the end of the bearing outer ring 2, after the bearing pressure plate body 601 is fixed to the end of the bearing inner ring 3, the bearing inner ring 3 synchronously drives the bearing pressure plate body 601 to rotate. Under the action of the centrifugal force of the bearing pressure plate body 601, the centrifugal wedge 606 can slide along the guide frame 605 to the outside of the bearing pressure plate body 601, so that the centrifugal wedge 606 contacts the outer wall of the limiting end seat 7, thereby generating an axial thrust. Under the action of the centrifugal wedge 606 at both ends and the limiting end seat 7, the two ends of the bearing outer ring 2 are restricted, and the bearing outer ring 2 is further fixed in the inner cavity of the bearing seat 1.

[0040] Working principle: The external shaft passes through the inner cavity of the bearing inner ring 3 and drives the bearing inner ring 3 to rotate synchronously. During the rotation of the bearing inner ring 3, the rolling balls 5 connected to the outer wall roll along the inner wall of the bearing outer ring 2, realizing the relative rotation between the bearing outer ring 2 and the bearing inner ring 3. The sealing element 4 fixedly installed on the inner wall of the bearing outer ring 2 forms a closed protection for the gap between the bearing outer ring 2 and the bearing inner ring 3, preventing grease leakage and external impurities from entering the mating gap, and ensuring the stable operation of the bearing outer ring 2, bearing inner ring 3, and rolling balls 5. Furthermore, when the inner ring 3 of the bearing rotates, the bearing pressure plate body 601, which is fixedly assembled at the end of the inner ring 3 of the bearing, rotates synchronously with the inner ring 3 of the bearing. The rotation of the bearing pressure plate body 601 generates centrifugal force, causing the centrifugal wedge 606, which is movably sleeved on the outer wall of the guide frame 605, to move radially along the guide frame 605 towards the outer side of the bearing pressure plate body 601. The oblique surface of the centrifugal wedge 606 is pressed against the outer wall of the limiting end seat 7, converting the radial movement of the centrifugal wedge 606 into an axial force towards the inner cavity of the bearing seat 1, and acting on the end of the outer ring 2 of the bearing. The bearing pressure plate bodies 601 at both ends of the inner ring 3 rotate synchronously, and the centrifugal wedges 606 at both ends apply opposing axial clamping forces to the outer ring 2 of the bearing, stably confining the outer ring 2 of the bearing in the inner cavity of the bearing housing 1, effectively limiting the axial movement of the outer ring 2 of the bearing during operation, and improving the overall operational stability of the device; when the device stops working, the inner ring 3 of the bearing and the bearing pressure plate bodies 601 stop rotating synchronously, the centrifugal effect disappears, the axial force of the centrifugal wedges 606 on the limiting end seat 7 and the outer ring 2 of the bearing is eliminated synchronously, and the outer ring 2 of the bearing returns to the initial assembly gap state; As the bearing pressure plate body 601 rotates continuously with the inner ring 3 of the bearing, the pushing cam 604, which is fixedly mounted on the outer wall of the bearing pressure plate body 601, moves synchronously. When the pushing cam 604 rotates, it intermittently pushes the reciprocating push rod 905 to move linearly along the inner wall of the bearing seat 1. When the reciprocating push rod 905 moves away from the inner cavity of the bearing seat 1, it stretches the return spring 906 movably sleeved on the outer wall. When the pushing cam 604 rotates to the point of disengagement from the reciprocating push rod 905, the return spring 906 elastically retracts and pulls the reciprocating push rod 905 back along the inner wall of the bearing seat 1, so that the reciprocating push rod 905 forms a continuous linear reciprocating motion. When the reciprocating push rod 905 reciprocates, it drives the connecting rod 904, which is rotatably connected at the end, to swing back and forth. During the swinging process, the connecting rod 904 drives the crank 903 to rotate, and the rotation of the crank 903 drives the drive disc 902 to rotate stably. The rotation of the drive disc 902 drives the active coupling sleeve 902, which is fixed at the end, to rotate back and forth. 07. When the linkage pin 908 is pushed into the inner cavity of the driven coupling sleeve 9013, the driving coupling sleeve 907 and the driven coupling sleeve 9013 form a meshing linkage. The driving coupling sleeve 907 drives the driven coupling sleeve 9013 to rotate through the linkage pin 908. The rotation of the driven coupling sleeve 9013 drives the grease pump rotor 9011 to rotate in the inner cavity of the pump chamber 9010 of the grease pump housing 909. The rotation of the grease pump rotor 9011 drives the grease pump blade 9012, which is movably sleeved on the inner wall, to rotate synchronously. During the rotation of the grease pump rotor 9011 and the grease pump blade 9012, the grease pump rotor 9011 and the grease pump blade 9012 form a pushing pressure on the grease in the inner cavity of the grease storage tank 9014, so that the grease is delivered to the inner cavity of the bearing seat 1 through the grease outlet 9015, and then introduced into the fitting clearance between the bearing outer ring 2 and the bearing inner ring 3 through the grease guide hole 8 opened on the outer wall of the bearing outer ring 2, so as to continuously lubricate the ball 5, the bearing outer ring 2, and the bearing inner ring 3, reduce friction loss, and extend the service life of the device.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended technical solutions and their equivalents.

Claims

1. A rolling bearing device with a rotatable bearing pressure plate, comprising a bearing housing (1), characterized in that: The bearing housing (1) has an outer bearing ring (2) installed in its inner cavity. The inner cavity of the outer bearing ring (2) is rotatably connected to an inner bearing ring (3). A seal (4) is fixedly installed on the inner wall of the outer bearing ring (2). A ball (5) is rolledly connected to the outer wall of the inner bearing ring (3). A rotating pressure plate assembly (6) is provided at the end of the inner bearing ring (3). A limit end seat (7) is fixedly installed at the end of the outer bearing ring (2). A grease guide hole (8) is opened on the outer wall of the outer bearing ring (2). A linkage lubrication assembly (9) is provided on the top of the bearing housing (1).

2. The rolling bearing device with a rotatable bearing pressure plate according to claim 1, characterized in that: The rotating pressure plate assembly (6) includes a bearing pressure plate body (601), a connecting plate (602) is fixedly mounted on one end of the bearing pressure plate body (601) away from the bearing inner ring (3), a locking bolt (603) is threadedly connected to the inner wall of the connecting plate (602), a pushing protrusion (604) is fixedly mounted on the outer wall of the bearing pressure plate body (601), a guide frame (605) is fixedly mounted on the side of the bearing pressure plate body (601) near the bearing inner ring (3), and a centrifugal wedge (606) is movably sleeved on the outer wall of the guide frame (605).

3. The rolling bearing device with a rotatable bearing pressure plate according to claim 2, characterized in that: The locking bolts (603) are threadedly connected to the inner wall of the connecting plate (602) and the inner ring (3) of the bearing respectively. There are two bearing pressure plate bodies (601), and the two bearing pressure plate bodies (601) are respectively installed at both ends of the inner ring (3) of the bearing.

4. The rolling bearing device with a rotatable bearing pressure plate according to claim 3, characterized in that: The bearing pressure plate body (601) is fixedly assembled to the end of the bearing inner ring (3) by a connecting plate (602) and a locking bolt (603), and the centrifugal wedge (606) has a beveled surface on the side near the bearing inner ring (3).

5. The rolling bearing device with a rotatable bearing pressure plate according to claim 2, characterized in that: The linkage lubrication assembly (9) includes a support frame (901), a drive disc (902) is rotatably connected to the inner wall of the support frame (901), a crank (903) is fixedly mounted on the end of the drive disc (902) away from the support frame (901), a connecting rod (904) is rotatably connected to the end of the crank (903) away from the drive disc (902), a reciprocating push rod (905) is movably sleeved on the inner wall of the bearing seat (1), a return spring (906) is movably sleeved on the outer wall of the reciprocating push rod (905), and an active coupling sleeve (907) is fixedly mounted on the end of the drive disc (902) away from the crank (903).

6. The rolling bearing device with a rotatable bearing pressure plate according to claim 5, characterized in that: The inner cavity of the active coupling sleeve (907) is movably fitted with a linkage pin (908). The top of the bearing seat (1) is fixedly fitted with a grease pump housing (909). The inner cavity of the grease pump housing (909) is provided with a pump chamber (9010). The inner cavity of the grease pump housing (909) is rotatably connected with a grease pump rotor (9011). The inner wall of the grease pump rotor (9011) is movably fitted with a grease pump blade (9012). The end of the grease pump rotor (9011) is fixedly fitted with a driven coupling sleeve (9013). The top of the grease pump housing (909) is fixedly fitted with a grease reservoir (9014). The outer wall of the grease pump housing (909) is fixedly fitted with a grease outlet (9015).

7. The rolling bearing device with a rotatable bearing pressure plate according to claim 6, characterized in that: The reciprocating push rod (905) penetrates the inner wall of the bearing seat (1) and contacts the push protrusion (604). The two ends of the return spring (906) are respectively connected to the outer wall of the bearing seat (1) and the end of the return spring (906) near the connecting rod (904). The length of the return spring (906) when it is at rest and not under force is half the length of the reciprocating push rod (905).

8. The rolling bearing device with a rotatable bearing pressure plate according to claim 7, characterized in that: The end of the connecting rod (904) away from the crank (903) is rotatably connected to the end of the reciprocating push rod (905). The outer wall shape of the linkage pin (908) matches the inner wall shape of the driving coupling sleeve (907) and the driven coupling sleeve (9013). The inner cavity of the grease pump housing (909) communicates with the inner cavities of the grease outlet (9015) and the grease storage tank (9014), respectively.

9. The rolling bearing device with a rotatable bearing pressure plate according to claim 8, characterized in that: The length of the linkage pin (908) is less than the length of the inner cavity of the active coupling sleeve (907), both ends of the grease pump rotor (9011) are equipped with driven coupling sleeves (9013), and the inner cavity of the grease reservoir (9014) is filled with lubricating grease.

10. The rolling bearing device with a rotatable bearing pressure plate according to claim 6, characterized in that: The outer diameter of the bearing outer ring (2) matches the inner diameter of the bearing seat (1), and the outer wall shape of the opposite face of the limiting end seat (7) and the centrifugal wedge (606) matches.

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