阅读说明：本技术 一种抗压型轴承 (Resistance to compression type bearing ) 是由 王民豪 于 2020-12-03 设计创作，主要内容包括：本发明公开了一种抗压型轴承,包括外圈、内圈和钢球,钢球之间由保持架均匀间隔分开,所述保持架包括将各个钢球箍住的箍圈以及连接各个箍圈的连接体,在每段连接体上均设置有分别朝向外圈和内圈的支撑杆,支撑杆的端部分别设置有顶压体,箍圈处设置有抵触在钢球上的抵触体,且连接体和支撑杆内设置有连通的油路,抵触体和顶压体分别作用于油路,当抵触体受压迫时,顶压体将压迫于外圈和内圈上。当轴承负载变大超过正常限度时,钢球受到外圈和内圈的压力将使得钢球产生微量形变时,油路内的压力油会驱使顶压块顶在外圈滚道和内圈滚道上,进而使得钢球受到的压力减小,减小钢球与滚道之间的磨损,提高轴承的整体使用寿命。(The invention discloses a compression-resistant bearing, which comprises an outer ring, an inner ring and steel balls, wherein the steel balls are uniformly separated by a retainer at intervals, the retainer comprises hoops for hooping the steel balls and connectors for connecting the hoops, each section of connector is provided with a support rod respectively facing the outer ring and the inner ring, the end parts of the support rods are respectively provided with a jacking body, the hoops are provided with contact bodies which are abutted against the steel balls, communicated oil passages are arranged in the connectors and the support rods, the contact bodies and the jacking bodies respectively act on the oil passages, and when the contact bodies are pressed, the jacking bodies press the outer ring and the inner ring. When the load of the bearing is increased to exceed the normal limit, when the steel ball is subjected to the pressure of the outer ring and the inner ring, the steel ball is slightly deformed, the pressure oil in the oil way drives the jacking block to jack the outer ring raceway and the inner ring raceway, so that the pressure applied to the steel ball is reduced, the abrasion between the steel ball and the raceway is reduced, and the integral service life of the bearing is prolonged.)

1. The utility model provides a compression-resistant bearing, includes outer lane (1), inner circle (2) and steel ball (3), is separated by the even interval of holder (4) between steel ball (3), a serial communication port, holder (4) are including hoop (41) of cramping each steel ball (3) and the connector of connecting each hoop (41), all are provided with bracing piece (42) towards outer lane (1) and inner circle (2) respectively on every section connector, the tip of bracing piece (42) is provided with the roof pressure body respectively, hoop (41) department is provided with the abutting body of contradicting on steel ball (3), and is provided with oil circuit (43) of intercommunication in connector and bracing piece (42), abutting body and roof pressure body act on oil circuit (43) respectively, when the abutting body is compressed, the roof pressure body will oppress on outer lane (1) and inner circle (2).

2. A compression-resistant bearing according to claim 1, wherein the contact body comprises a first piston rod (51) and a first piston (52), the end of the connecting body is provided with a first piston cavity (431) which is matched with the first piston (52), the pressing body comprises a second piston rod (61) and a second piston (62), the end of the supporting rod (42) is provided with a second piston cavity (432) which is matched with the second piston (62), and the oil path (43) is communicated with the second piston cavity (432) and the first piston cavity (431).

3. A compression resistant bearing according to claim 2 wherein the second piston (62) has a cross-sectional area greater than the cross-sectional area of the first piston (52).

4. A compression-resistant bearing according to claim 2, wherein the pressing body comprises a pressing block (6) connected to the second piston rod (61), and a spring (7) is disposed between the second piston (62) and the second piston chamber (432), and the spring (7) urges the pressing block (6) away from the raceway surface of the outer ring (1) or the raceway surface of the inner ring (2).

5. A compression-resistant bearing according to claim 2, wherein the contact body comprises a contact block (5) connected to the first piston rod (51), and a surface of the contact block (5) facing the steel ball (3) is spherically concave and conforms to a radius of curvature of the steel ball (3).

6. A compression-resistant bearing according to claim 5, wherein the surface of the contact block (5) facing the steel ball (3) is provided with a graphite layer.

Technical Field

The invention relates to the technical field of bearings, in particular to a compression-resistant bearing.

Background

The bearing is an important part in the modern mechanical equipment, and the main function of the bearing is to support the mechanical rotating body, reduce the friction loss and the rotating precision in the moving process of the mechanical rotating body.

Then, when the load is too large, the force applied to the steel ball will also increase, the friction between the steel ball and the inner and outer rings will also increase, the corresponding abrasion will also increase, and the service life of the bearing will be seriously affected.

Disclosure of Invention

The invention aims to provide a compression-resistant bearing which can reduce the pressure between a steel ball and an inner ring and an outer ring when the load is overlarge.

In order to achieve the purpose, the method is realized by the following technical means: the utility model provides a resistance to compression type bearing, includes outer lane, inner circle and steel ball, is separated by the even interval of holder between the steel ball, the holder includes the connector of the tension sleeve of hooping each steel ball and connecting each tension sleeve, all is provided with the bracing piece towards outer lane and inner circle respectively on every section connector, and the tip of bracing piece is provided with the roof pressure body respectively, and tension sleeve department is provided with the touch body of contradicting on the steel ball, and is provided with the oil circuit of intercommunication in connector and the bracing piece, and touch body and roof pressure body act on the oil circuit respectively, and when the touch body is compressed, the roof pressure body will oppress on outer lane and inner circle.

The method is further optimized as follows: the conflict body includes first piston rod and first piston, the tip of connector be provided with first piston complex first piston chamber, the roof pressure body include second piston rod and second piston, the tip of bracing piece be provided with second piston complex second piston chamber, oil circuit intercommunication second piston chamber and first piston chamber.

The method is further optimized as follows: the cross-sectional area of the second piston is larger than the cross-sectional area of the first piston.

The method is further optimized as follows: the jacking body comprises a jacking block connected with the second piston rod, a spring is arranged between the second piston and the second piston cavity, and the spring drives the jacking block to be away from the outer ring raceway surface or the inner ring raceway surface.

The method is further optimized as follows: the collision body comprises a collision block connected with the first piston rod, and the surface of the collision block facing the steel ball is spherically concave and consistent with the curvature radius of the steel ball.

The method is further optimized as follows: and a graphite layer is arranged on one surface of the abutting block facing the steel ball.

Compared with the prior art, the invention has the advantages that: under the normal load work of the bearing, the pressure of the steel ball is relatively normal, at the moment, the pressure of the outer ring and the pressure of the inner ring of the steel ball are not enough to enable the steel ball to deform slightly, at the moment, the steel ball cannot push the contact block, so that the first piston moves towards the direction of the connector of the retainer, and meanwhile, the jacking block also leaves a gap with an outer ring pipeline or an inner ring raceway under the action of the spring, namely under the normal load action, the jacking block cannot influence the normal work of the bearing; when bearing load grow surpasses normal limit, the steel ball receives the pressure of outer lane and inner circle will make the steel ball produce micro deformation, at this moment, the deformation volume of steel ball will promote the contact block for first piston moves towards the connector direction of holder, and at this moment, the pressure oil in the oil circuit will order about the direction motion of second piston towards the top briquetting, order about the top pressure piece top on outer lane raceway and inner circle raceway, and then make the pressure that the steel ball received reduce, reduce the wearing and tearing between steel ball and the raceway, improve the whole life of bearing.

Drawings

FIG. 1 is a schematic view of the inside of a bearing according to the present embodiment;

FIG. 2 is a schematic structural view of one of the repeating units of the cage in this embodiment;

FIG. 3 is a cross-sectional view of FIG. 2;

fig. 4 is an enlarged view of a portion a of fig. 3.

In the figure, 1, outer ring; 2. an inner ring; 3. a steel ball; 4. a holder; 41. a hoop; 42. a support bar; 43. an oil path; 431. a first piston chamber; 432. a second piston chamber; 5. a contact block; 51. a first piston rod; 52. a first piston; 6. pressing the block; 61. a second piston rod; 62. a second piston; 7. a spring.

Detailed Description

The invention will be further described by means of specific embodiments, which are given by way of illustration only and are not intended to limit the scope of the invention.

Examples

A pressure-resistant bearing is shown in figure 1 and comprises an outer ring 1, an inner ring 2 and steel balls 3, wherein the steel balls 3 are uniformly separated by a retainer 4, and the retainer 4 comprises a hoop 41 for encircling the steel balls 3 and a connecting body for connecting the hoop 41. The main improvement here is in the cage 4.

The retainer 4 is mainly shown in fig. 2-4, a support rod 42 facing the outer ring 1 and the inner ring 2 is arranged on each connecting body, and a communicated oil path 43 is arranged inside each connecting body and each support rod 42. The end of the supporting rod 42 is provided with a top pressing block 6, the top pressing block 6 is connected with a second piston rod 61 and a second piston 62, a second piston cavity 432 matched with the second piston 62 is arranged at the end of the supporting rod 42, a spring 7 is arranged between the second piston cavity 432 and the second piston 62, the spring 7 drives the second piston 62 to move towards one side of the connecting body, and therefore the top pressing block 6 can keep a gap with the raceway of the outer ring 1 or the raceway of the inner ring 2. The end of the connecting body, that is, the hoop 41 is provided with a contact block 5, the contact block 5 is connected with a first piston rod 51 and a first piston 52, the end of the connecting body is provided with a first piston cavity 431 matched with the first piston 52, and the oil path 43 is communicated with a second piston cavity 432 and the first piston cavity 431. In order to enable the contact block 5 to be attached to the steel ball 3 and reduce friction, one surface, facing the steel ball 3, of the contact block 5 is provided with a spherical surface recess which is consistent with the curvature radius of the steel ball 3; in order to reduce the friction between the pressing block 6 and the raceway, one surface of the pressing block 6 facing the raceway is configured to be in fit with the surface of the raceway.

Through the above setting mode, the bearing is under normal load work, the pressure that steel ball 3 received is normal relatively, this moment, steel ball 3 receives the pressure of outer lane 1 and inner circle 2 and is unlikely to make steel ball 3 take place micro-deformation, at this moment, steel ball 3 can not promote and support contact block 5, make first piston 52 towards the connector direction motion of holder 4, top briquetting 6 will also leave the clearance with outer lane 1 pipeline or inner circle 2 raceway under the effect of spring 7 simultaneously, also be under normal load effect, top briquetting 6 can not influence the normal work of bearing. And for the smooth and easy nature of bearing work, set up the graphite layer in the one side of conflict piece 5 towards steel ball 3, because conflict piece 5 can take place contact friction with steel ball 3, the setting of graphite layer will reduce the coefficient of friction between steel ball 3 and conflict piece 5, will also reduce the coefficient of friction between steel ball 3 and the raceway simultaneously, reduce the wearing and tearing volume of steel ball 3 in normal work, improve the working life of bearing.

When the bearing load becomes larger than the normal limit, the steel ball 3 is slightly deformed by the pressure of the outer ring 1 and the inner ring 2, at the moment, the deformation amount of the steel ball 3 pushes the contact block 5, the first piston 52 moves towards the direction of the connector of the retainer 4, at the moment, the pressure oil in the oil path 43 drives the second piston 62 to move towards the direction of the top pressing block 6, the top pressing block 6 is driven to be pressed against the outer ring 1 roller path and the inner ring 2 roller path, the pressure of the steel ball 3 is reduced, the abrasion between the steel ball 3 and the roller paths is reduced, and the service life of the whole bearing is prolonged.

In order to further improve the bearing capacity of the steel ball 3 against high loads, the sectional area of the second piston 62 is set larger than that of the first piston 52. The oil pressure in the oil path 43 is the same as that in the first piston cavity 431 and the second piston cavity 432, and is known by F = PS, the larger S is, the larger F is, so that the pressure oil changes when the contact block 5 moves, and further after the pressing block 6 extends out, the force of the pressing block 6 acting on the raceway is larger than the force of the steel ball 3 acting on the contact block 5, that is, the force is amplified, the supporting effect of the pressing block 6 on the raceway is further improved, the load of the steel ball 3 is conversely reduced, and the bearing capacity of the steel ball 3 is improved.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.