CN218177759U - Oiling positioning bearing assembly - Google Patents

Abstract

The utility model discloses an oiling positioning bearing assembly, which comprises a bearing, a bearing seat sleeved outside the bearing, an oiling positioning device arranged on the bearing seat and a bearing end cover covering the bearing; a first oil injection channel is arranged in the bearing seat; the bearing end cover is provided with a second oil injection channel, and the second oil injection channel is connected between the first oil injection channel and the bearing; the oil injection positioning device is arranged at the top of the inner cavity of the bearing seat and comprises a positioning groove and a tightly matched limiting block; meanwhile, a corresponding limiting groove is formed in the bearing end cover at the corresponding position, and the cross sectional area of the limiting groove is larger than that of the limiting block. Compared with the prior art, the utility model discloses an oiling location bearing subassembly, first oiling passageway and second oiling passageway can guarantee when the installation on same axis, can not misplace, and easy to assemble also can not receive the influence production aversion of vibration after the operation, guarantees going on smoothly of filling lubricating oil.

Description

Oiling location bearing subassembly

Technical Field

The utility model relates to a bearing technical field especially relates to an oiling location bearing subassembly.

Background

The bearing is an important part in mechanical equipment, and the function of the bearing is to support a mechanical rotating body such as a shaft body and reduce the friction coefficient in the movement process of the mechanical rotating body, so that the rotation precision of the mechanical rotating body is ensured. When the bearing works, not only rolling friction but also sliding friction occurs between all parts forming the bearing, thereby causing the abrasion of the parts, therefore, adding lubricating oil to the bearing can not only reduce the friction and the abrasion in the bearing, but also prevent rusting and corrosion and prolong the service life. But the amount of the lubricant to be added is particularly required. If the amount of the additive is too small, the bearing life is affected due to insufficient lubrication; if the amount of the additive is too large, a large resistance is generated, and the normal operation of the shaft body is affected. Therefore, in the prior art, the lubricating oil is added to the bearing, a certain dosage is generally added periodically to control the dosage, and the normal operation of the shaft body is not affected under the condition of ensuring the lubrication.

Taking a jaw crusher as an example, a common jaw crusher drives an eccentric shaft to rotate by a belt pulley, and a movable jaw connected with the eccentric shaft reciprocates along with the eccentric shaft in a regular motion track and periodically moves away from or close to a fixed jaw plate, so as to crush materials between the movable jaw plate and the fixed jaw plate. However, the bearings supporting the eccentric shaft are easily worn when working in a high-strength and high-load environment for a long time, and therefore, proper addition of lubricating oil is definitely the key to ensure the normal operation of the eccentric shaft.

There are two common prior art constructions of jaw crushers there, as shown in fig. 1 and 2, the jaw crusher in fig. 1 comprises a pulley 1, an eccentric shaft 5 rotating with said pulley 1, a movable jaw 4 connected to said eccentric shaft 5 and a bearing assembly 2 supporting said eccentric shaft 5. The bearing assembly 2 comprises a bearing 6 sleeved on the eccentric shaft 5 and a bearing seat 3 for mounting the bearing 6. Wherein, the bearing seat 3 is sleeved on the outer side of the bearing 6. The bearing end covers 7 are covered on two axial end faces of the bearing 6 and are tightly connected with the bearing seat 3, so that the lubricating oil in the bearing 6 is prevented from leaking, and the axial movement of the bearing 6 is limited. And a first oil injection channel 301 is arranged on the bearing seat 3. The first oil injection channel 301 is a through hole, an inlet of the first oil injection channel is arranged on the outer side of the bearing seat 3, an outlet of the first oil injection channel is arranged on one side facing the bearing end cover 7, and a thread is arranged at the inlet of the first oil injection channel and is convenient to connect with an oil supply pipe. A second oil injection channel 701 is arranged in the bearing end cover 7, the axis of the second oil injection channel is coincident with the axis of the first oil injection channel 301, the inlet of the second oil injection channel is connected with the first oil injection channel 301, the outlet of the second oil injection channel faces the axial end face of the bearing 6, and the lubricating oil flows to the axial end face of the bearing 6 along the second oil injection channel 701 and flows into the interior of the bearing for lubrication. The bearing seat 3 and the outer end face side of the bearing end cover 7 are provided with a fastening plate 8, and the fastening plate 8 fixes, locks and positions the bearing seat 3 and the bearing end cover 7 through a fixing bolt 9.

However, when the bearing assembly 2 is installed, the fixing bolt 9 may slightly deflect at the time of fastening, so that the axes of the first oil injection passage 301 and the second oil injection passage 701 cannot be overlapped after fastening, an oil path through which lubricating oil flows is bent, the flow area is reduced, and the lubricating oil is easily blocked or even cannot be filled. After the fixing bolt 9 is tightly fixed and runs for a period of time, the fixing bolt 9 can be loosened and even fall off due to vibration generated during running, so that the bearing seat 3 is staggered relative to the bearing end cover 7, the first oil injection channel 301 is not aligned with the second oil injection channel 701 any more, and therefore lubricating oil is easy to block or even cannot be injected during injecting, and meanwhile, due to the fact that the fixing bolt 9 is close to the flywheel 1, the maintenance space is too small when the fixing bolt 9 is overhauled after a problem occurs, and the maintenance is difficult.

The jaw crusher in fig. 2 comprises a pulley 1, an eccentric shaft 5 rotating with said pulley 1, a movable jaw 4 connected to said eccentric shaft 5 and a bearing assembly 2 supporting said eccentric shaft 5. The bearing assembly 2 comprises a bearing 6 sleeved on the eccentric shaft 5 and a bearing seat 3 used for mounting the bearing 6. Wherein, the bearing seat 3 is sleeved on the outer side of the bearing 6. An oil groove 6011 communicated with the inside of the bearing 6 is arranged in the axial middle part of the outer ring of the bearing 6. Oil holes 3011 are distributed on the bearing seat 3 along the circumferential direction of the bearing 6. The oil filling hole 3011 communicates the outer side of the bearing seat 3 with the oil groove 6011. When lubricating oil is added, lubricating oil is injected from the oil injection hole 3011, and the lubricating oil flows to the oil groove 6011 along the oil injection hole 3011 and enters the inside of the bearing 6 for lubrication.

However, after a period of use, due to installation errors and the like, the bearing 6 is misaligned relative to the bearing seat 3, and the oil hole 3011 is no longer aligned with the oil groove 6011, so that an oil path through which lubricating oil flows is bent, resistance is increased, and the lubricating oil is easily blocked or even cannot be filled.

Disclosure of Invention

Based on this, the utility model aims at providing an oiling location bearing subassembly guarantees that the oiling passageway is in on the same axis always in when easy to assemble, and the normal operating of equipment is guaranteed to going on smoothly of the filling lubricating oil of being convenient for, follow-up easy maintenance simultaneously.

The utility model discloses a technical scheme that oiling location bearing subassembly took as follows:

an oiling positioning bearing assembly comprises a bearing, a bearing seat sleeved outside the bearing, and a bearing end cover covering the axial end face of the bearing; a first oil injection channel is arranged in the bearing seat and is a through hole; a positioning groove is formed in the inner cavity of the bearing seat, and a limiting block is arranged in the positioning groove; the bearing end cover is provided with a second oil injection channel, and the second oil injection channel is connected between the first oil injection channel and the axial end face of the bearing; the bearing end cover is provided with a limiting groove, and the cross section area of the limiting groove is larger than that of the limiting block; lubricating oil enters from the first oil injection channel, flows to the second oil injection channel and flows to the axial end face of the bearing through the second oil injection channel;

compared with the two prior art, the utility model discloses a locating piece is located between bearing and the bearing cap among the oiling location bearing subassembly, convenient location during the installation, and easily operation makes simultaneously can not take place relative rotation between bearing frame, the bearing cap, and the axis of first oiling passageway and second oiling passageway keeps unanimous always, and the oil circuit does not change, guarantees the smooth filling of lubricating oil. And the cross-sectional area of the limiting groove is larger than that of the limiting block, so that the unimpeded smooth installation can be guaranteed. And the subsequent maintenance is convenient.

The oil supply device further comprises an oil supply pipe joint used for being connected with the oil supply pump; the oil supply pipe joint is arranged at an opening of one side of the first oil injection channel far away from the second oil injection channel. The connection with the oil supply pump is realized through the oil supply pipe joint, and lubricating oil is filled in the oil supply pump in a timing and quantitative mode.

Further, the device also comprises an inner through screw plug; the inner through screw plug is plugged into the first oil injection channel; the oil supply pipe joint is fixedly arranged in the inner through screw plug. The internal through screw plug is connected with the first oil filling channel and the oil supply pipe, so that smooth filling is ensured.

Furthermore, the number of the positioning grooves is 1 or more, and the positioning grooves are arranged in the vertical direction of the inner cavity of the bearing seat; the number of the limiting blocks is consistent with that of the positioning grooves and the limiting blocks are in transition fit with the positioning grooves; the number of the limiting grooves is consistent with that of the positioning grooves, and the axes of the limiting grooves coincide with those of the positioning grooves.

Further, the first oil injection channel and the second oil injection channel are smooth through holes; the cross section area of the second oil injection channel is slightly larger than that of the first oil injection channel, so that the oil way is smooth.

Furthermore, the number of the first oil injection channels and the number of the second oil injection channels are more than two, and the first oil injection channels and the second oil injection channels are uniformly distributed in the direction parallel to the radial direction of the bearing.

For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a partial schematic view of a prior art jaw crusher and an enlarged view of a bearing assembly;

FIG. 2 is a partial schematic view of another prior art jaw crusher and an enlarged view of a portion of the bearing assembly;

FIG. 3 is a schematic view of a portion of a jaw crusher and a close-up view of a portion of an oil injection positioning bearing assembly according to an embodiment of the present invention;

Detailed Description

Use jaw breaker as an example, the utility model discloses an oiling location bearing subassembly convenient location when the installation, easily operation, the restriction is fixed a position with the bearing cap just to this jaw breaker's bearing frame when the installation simultaneously, guarantees that the oiling passageway is in on the same axis always, also can guarantee simultaneously to have no relative position change at first oiling passageway of jaw breaker after the operation with second oiling passageway, guarantees going on smoothly of filling lubricating oil.

Referring to fig. 3, the jaw crusher of this embodiment includes a pulley 1, an eccentric shaft 5 rotating with the pulley 1, a movable jaw 4 connected to the eccentric shaft 5, and an oil-filled positioning bearing assembly 14. The oil injection positioning bearing assembly 14 comprises a bearing 6 sleeved on the eccentric shaft 5, a bearing seat 3 used for mounting the bearing 6, bearing end covers 7 covering two ends of the bearing 6, and a positioning block 13 inserted in the bearing seat 3 and the bearing end covers 7. The bearing seat 3 is sleeved on the outer side of the bearing 6 to support the bearing 6. The bearing end covers 7 are covered on two axial end faces of the bearing 6 and are tightly connected with the bearing seat 3, so that lubricating oil in the bearing 6 is prevented from leaking, and the axial movement of the bearing 6 is limited.

Referring to the enlarged view of fig. 2, a positioning groove 302 is disposed in the bearing seat 3, and the positioning block 13 is fixed on the positioning groove 302 and is in transition fit with the positioning block. The bearing end cover 7 is provided with a limiting groove 702, the axis of the limiting groove is overlapped with the axis of the positioning groove 302, positioning and limiting use are carried out during installation, and the bearing seat 3 and the bearing end cover 7 are guaranteed not to move in relative positions after working and using.

The first oil injection channel 301 is a through hole, an inlet of the first oil injection channel is arranged on the outer side of the bearing seat 3, an outlet of the first oil injection channel is arranged on one side facing the bearing end cover 7, and a thread is arranged at the inlet of the first oil injection channel, so that the first oil injection channel is conveniently connected with an oil supply pipe. Preferably, the first oil injecting passage 301 extends in a direction parallel to a radial direction of the bearing 6.

A second oil injection channel 701 is arranged in the bearing end cover 7, the second oil injection channel 701 is also a through hole, the axis of the second oil injection channel 701 coincides with the axis of the first oil injection channel, the inlet of the second oil injection channel is connected with the first oil injection channel 301, the outlet of the second oil injection channel faces the axial end face of the bearing 6, and the lubricating oil flows to the axial end face of the bearing 6 along the second oil injection channel 701 and flows into the interior of the bearing. Preferably, an outlet of the second oil injecting passage 701 is located between an outer ring and an inner ring of the bearing 6.

Further, the oil injection positioning bearing assembly 14 further comprises an inner through screw plug 10, threads are arranged on the inner side and the outer side of the inner through screw plug 10, and the inner through screw plug 10 is plugged into the first oil injection channel 301 and is in threaded connection with the first oil injection channel 301.

Further, the oil filling positioning bearing assembly 14 further includes an oil supply pump (not shown), an oil supply pipe joint 11, and an oil supply pipe 12 connected between the oil supply pump and the oil supply pipe joint 11. Preferably, the oil supply pipe joint 11 is plugged into the internal through screw plug 10 and is in threaded connection with the internal through screw plug. And oil is injected regularly and quantitatively through the oil supply pump. The oil supply pipe joint 11 is screwed into the internal screw plug 10 to prevent the oil supply pipe 12 from being loosened by vibration during operation.

Further, the number of the first oil injection passage 302 and the second oil injection passage 701 is two or more, the axes are overlapped in a one-to-one correspondence manner, and the first oil injection passage and the second oil injection passage are uniformly distributed in a direction parallel to the radial direction of the bearing 6, and the lubricating oil is injected into the bearing 6 from different directions.

It is particularly noted that the above description has been given only by way of example of a jaw crusher, and the inventive oiling positioning bearing assembly is suitable for adding lubrication oil to bearings of other equipment.

With present figure 1 the technique compares, the utility model discloses a stopper among the oiling location bearing subassembly sets firmly in the bearing frame, utilize the spacing groove on the bearing end cover to fix the relative position of bearing frame and bearing end cover simultaneously, thereby make the axis of first oiling passageway and second oiling passageway keep the coincidence always, avoid the bearing, the oil circuit that displacement between bearing frame and the bearing end cover caused blocks up, even if long-term the use, still can the smooth filling lubricating oil, and simultaneously, because the structure is comparatively simple, the position of the stopper just can make things convenient for the accurate location with the spacing groove when the installation, easy to operate, and follow-up easy maintenance.

With present fig. 2 the technique is compared, the utility model discloses a stopper that sets up among the oiling location bearing subassembly sets firmly in the bearing frame, can be fine with the relative position of bearing frame and bearing end cover fixed to make the axis of first oiling passageway and second oiling passageway keep the coincidence always, avoid the bearing, the displacement between bearing frame and the bearing end cover changes and the oil circuit that causes changes, reduce the resistance of filling lubricating oil, even if long-term the use, still can fill lubricating oil smoothly, and can fill lubricating oil to the different positions of bearing, make each position of bearing can both obtain abundant lubrication.

The above-mentioned embodiments only represent one embodiment of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (6)

1. An oil impregnated locating bearing assembly, comprising: the bearing comprises a bearing, a bearing seat sleeved outside the bearing, and a bearing end cover covering the axial end face of the bearing; a first oil injection channel is arranged in the bearing seat, and the first oil injection channel is a through hole; a positioning groove is formed in the inner cavity of the bearing seat, and a limiting block is arranged in the positioning groove; the bearing end cover is provided with a second oil injection channel, and the second oil injection channel is connected between the first oil injection channel and the axial end face of the bearing; the bearing end cover is provided with a limiting groove, and the cross sectional area of the limiting groove is slightly larger than that of the limiting block.

2. The bearing assembly of claim 1, wherein: the second oil injection channel is arranged on the bearing end cover.

3. The bearing assembly of claim 1, wherein: the oil supply pipe joint is used for being connected with an oil supply pump; the oil supply pipe joint is arranged at an opening of one side of the first oil injection channel far away from the second oil injection channel.

4. The bearing assembly of claim 3, wherein: the device also comprises an inner through screw plug; the inner through screw plug is plugged into the first oil injection channel; the oil supply pipe joint is fixedly arranged in the inner through screw plug.

5. The bearing assembly of claim 1, wherein: the number of the positioning grooves is 1 or more, and the positioning grooves are arranged in the vertical direction of the inner cavity of the bearing seat; the number of the limiting blocks is consistent with that of the positioning grooves and the limiting blocks are in transition fit with the positioning grooves; the number of the limiting grooves is consistent with that of the positioning grooves, and the axis of the limiting grooves coincides with that of the positioning grooves.

6. The bearing assembly of claim 2, wherein: the cross street area of the second oiling channel is slightly larger than that of the first oiling channel; the number of the first oil injection channels and the number of the second oil injection channels are more than two, and the first oil injection channels and the second oil injection channels are uniformly distributed in the direction parallel to the radial direction of the bearing.

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