CN214534117U - Pre-tightening adjusting mechanism of tapered roller bearing - Google Patents
Pre-tightening adjusting mechanism of tapered roller bearing Download PDFInfo
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- CN214534117U CN214534117U CN202120242730.8U CN202120242730U CN214534117U CN 214534117 U CN214534117 U CN 214534117U CN 202120242730 U CN202120242730 U CN 202120242730U CN 214534117 U CN214534117 U CN 214534117U
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Abstract
The utility model belongs to the technical field of tapered roller bearing installation, concretely relates to tapered roller bearing's pretension guiding mechanism. The bearing comprises a bearing mounting cover and more than one annular gasket, wherein each annular gasket is formed by oppositely combining a pair of semicircular gaskets; the bearing mounting cover comprises a sleeve, a flange is horizontally arranged on the outer side wall of the lower end of the sleeve, an outer ring of the tapered roller bearing and the inner side wall of the sleeve are fixedly mounted, and an inner ring of the tapered roller bearing and the outer side wall of the corresponding pin shaft are fixedly mounted; the mounting surface of the flange is fixed with a fixed shell through more than one annular gasket and a bolt, and the pre-tightening adjustment requirement of the conical roller bearing can be met by increasing or reducing the number of the annular gaskets. Therefore the utility model discloses when changing adjustment ring shape gasket, can only need loosen fastening bolt under bearing installation lid and the axle housing hole complex condition, avoid at the damage of dismouting process, also reduced tapered roller bearing and disassembled, knocked the risk that the dress caused secondary pollution.
Description
Technical Field
The utility model belongs to the technical field of tapered roller bearing installation, concretely relates to tapered roller bearing's pretension guiding mechanism.
Background
The tapered roller bearing is mainly used for bearing radial and axial combined loads which mainly comprise radial loads, has large bearing capacity and low limit rotating speed compared with an angular contact ball bearing, can bear axial loads in one direction, can limit axial displacement of a shaft or a shell in one direction, and is widely applied to vehicle systems.
In application, for the tapered roller bearing, the bearing angle of the bearing can be enlarged by proper pre-tightening, more rollers participate in bearing, the maximum contact stress is reduced, the service life of the bearing can be prolonged, the damage rate is reduced, and meanwhile vibration and noise in operation can be reduced.
When the pre-tightening of the assembly of the tapered roller bearing is adjusted at present, adjusting gaskets with different thicknesses are generally added and reduced between an outer ring of the tapered roller bearing and a bearing seat of a fixed shell, so that the pre-tightening degree is adjusted, and then a proper pre-tightening value is controlled by measuring or controlling the starting friction torque.
This structure has the following disadvantages: when the thickness of the gasket is changed, the outer ring of the tapered roller bearing needs to be detached, and the adjusting pad is added between the outer ring and the bearing seat, but the outer ring and the bearing seat are in interference fit, so that the adjustment is time-consuming and labor-consuming, and the working efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tapered roller bearing's pretension guiding mechanism to solve the problem that proposes in the above-mentioned background art, make this pretension guiding mechanism simple to operate, simple effective, improve production efficiency.
The specific technical scheme is as follows: a pre-tightening adjusting mechanism for mounting a tapered roller bearing comprises a bearing mounting cover 15 and more than one annular gasket 14, wherein each annular gasket 14 is formed by oppositely combining a pair of semicircular gaskets;
the bearing mounting cover 15 comprises a sleeve 151, a flange 152 is horizontally arranged on the outer side wall of the lower end of the sleeve 151, a grease nozzle mounting hole 153 is arranged at the bottom of the sleeve 151,
during installation, the end part of the pin shaft 9 is installed through the tapered roller bearing 13 and the bearing installation cover 15, the outer ring of the tapered roller bearing 13 is fixedly installed with the inner side wall of the sleeve 151, and the inner ring of the tapered roller bearing 13 is installed with the outer side wall of the corresponding pin shaft 9 in an interference fit manner;
the mounting surface of the flange 152 is fixed by more than one annular gasket 14 and a fixed shell bolt, and the pre-tightening adjustment requirement of the installation of the tapered roller bearing 13 can be realized by increasing or reducing the number of the annular gaskets 14.
Further, the inner cylindrical surface of the sleeve 151 is a step surface, the inner diameter of the upper part of the sleeve 151 is larger than the inner diameter of the lower part of the sleeve 151, and the lower end of the outer ring of the tapered roller bearing 13 is arranged on a step 155 of the step surface; a circle of groove 156 is formed in the outer cylindrical surface of the sleeve 151, and an O-shaped ring 12 is arranged in the groove 156 in a matched mode during installation.
Further, the orifice of the grease nipple mounting hole 153 is provided with an anti-collision boss 157.
Furthermore, open slots are uniformly formed in the inner circumference of each annular gasket 14, the open slots correspond to the threaded holes 154 on the flange 152 one by one, and bolts penetrate through the open slots and the corresponding threaded holes 154 to fixedly connect the flange 152 and the fixed casing.
The utility model has the advantages of as follows:
the utility model discloses a pretension guiding mechanism includes bearing installation lid and more than one annular gasket, and every annular gasket is the involutory constitution of semicircular a pair of packing ring, consequently when changing adjustment annular gasket, can be under bearing installation lid and the axle housing hole complex condition, only need relax fastening bolt, make and have sufficient gap between flange and the axle housing, can dismantle annular gasket from the flange outside, the cartridge is adjusted, need not take out the end cover from the hole of axle housing completely like in the past, avoid the damage at the dismouting process, conical roller bearing has also been reduced and has been disassembled, the risk that the dress caused secondary pollution is beaten, the labor intensity is reduced, and the production efficiency is improved, simple structure of parts, low manufacturing cost.
Drawings
Fig. 1 is a schematic structural diagram of the pretension adjusting mechanism of the present invention.
Fig. 2 is a schematic view of the bearing mounting cover of the present invention.
Fig. 3 is a usage status diagram of the pretension adjusting mechanism of the present invention.
Wherein: 1 upper end cover, 2 first tapered roller bearing, 3 first grease nozzle, 4 axle housings, 5 skeleton oil seals, 6 check rings, 7 upper spacer bushes, 8 steering knuckles, 9 pin shafts, 10 sealing rings, 11 lower spacer bushes, 12O-shaped rings, 13 tapered roller bearings, 14 annular gaskets, 15 bearing mounting covers, 151 sleeves, 152 flanges, 153 grease nozzle mounting holes, 154 threaded holes, 155 steps, 156 grooves, 157 anti-collision bosses and 16 second grease nozzles.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.
Examples
Referring to fig. 1, a pre-tightening adjusting mechanism for mounting a tapered roller bearing comprises a bearing mounting cover 15 and more than one annular gasket 14, wherein each annular gasket 14 is formed by a pair of semicircular gaskets in a matching way;
the bearing mounting cover 15 comprises a sleeve 151, a flange 152 is horizontally arranged on the outer side wall of the lower end of the sleeve 151, a grease nozzle mounting hole 153 is arranged at the bottom of the sleeve 151,
during installation, the end part of the pin shaft 9 is installed through the tapered roller bearing 13 and the bearing installation cover 15, the outer ring of the tapered roller bearing 13 is fixedly installed with the inner side wall of the sleeve 151, and the inner ring of the tapered roller bearing 13 is installed with the outer side wall of the corresponding pin shaft 9 in an interference fit manner;
the mounting surface of the flange 152 is fixed by more than one annular gasket 14 and a fixed shell bolt, and the pre-tightening adjustment requirement of the installation of the tapered roller bearing 13 can be realized by increasing or reducing the number of the annular gaskets 14.
Referring to fig. 2, the inner cylindrical surface of the sleeve 151 is a stepped surface, the inner diameter of the upper portion of the sleeve 151 is greater than the inner diameter of the lower portion of the sleeve 151, and the lower end of the outer ring of the tapered roller bearing 13 is disposed on a step 155 of the stepped surface; a circle of groove 156 is formed in the outer cylindrical surface of the sleeve 151, and an O-shaped ring 12 is arranged in the groove 156 in a matched mode during installation.
The orifice of the grease nipple mounting hole 153 is provided with an anti-collision boss 157.
Open grooves are uniformly formed in the inner circumference of each annular gasket 14, the open grooves correspond to the threaded holes 154 in the flange 152 one by one, and bolts penetrate through the open grooves and the corresponding threaded holes 154 to fixedly connect the flange 152 and the fixed shell.
See fig. 3, the utility model discloses a pretension guiding mechanism is used for the tapered roller bearing's of fork truck steer axle king pin lower extreme installation.
Specifically, the pin shaft 9 is sequentially sleeved with a first tapered roller bearing 2, an upper spacer 7, a steering knuckle 8, a lower spacer 11 and a tapered roller bearing 13, an upper end cover 1 is arranged at the upper end of the pin shaft 9, and the pin shaft 9 limits and supports the steering knuckle 8 in the axle housing 4, namely a fixed housing, through the first tapered roller bearing 2 and the tapered roller bearing 13.
The outer ring of the first tapered roller bearing 2 and the axle housing 4 are fixedly arranged,
the upper spacer 7 is installed through the framework oil seal 5 and the axle housing 4, and the lower end of the framework oil seal 5 is provided with a retainer ring 6 which can limit the axial movement of the framework oil seal; one end of the upper spacer 7 is contacted with the lower end of the inner ring of the first tapered roller bearing 2, and the other end is contacted with the upper end of the steering knuckle 8.
The lower end of the pin shaft 9 is installed through a tapered roller bearing 13 and the bearing installation cover 15, and a sealing ring 10 is arranged between the upper end face of the bearing installation cover 15 and the steering knuckle 8, so that lubricating grease required by the tapered roller bearing 13 can be effectively sealed.
Mounting of bearing mounting cover 15: fixing the outer ring of the tapered roller bearing 13 and the inner side wall of the sleeve 151, and fixing the inner ring of the tapered roller bearing 13 and the outer side wall of the corresponding pin shaft 9; and a sealed mounting is achieved by the cooperation of the groove 156 and the O-ring 12.
The mounting surface of the flange 152 is fixedly connected to the axle housing 4 through more than one annular gasket 14 by bolts, and by increasing or decreasing the number of the annular gaskets 14, the relative positions of the inner ring and the outer ring of the tapered roller bearing 13 in the axial direction can be changed, so that the gap between the inner ring and the outer ring of the tapered roller bearing 13 is changed, and the pre-tightening adjustment requirement for mounting the tapered roller bearing 13 is met.
Wherein the grease addition of the first tapered roller bearing 2 is realized by the first grease nipple 3, and the grease addition of the tapered roller bearing 13 is realized by the second grease nipple 16.
Therefore the utility model discloses a tapered roller bearing's pretension guiding mechanism, when changing adjustment ring shape gasket 14, can be under the 4 hole complex circumstances of bearing installation lid 15 and axle housing, only need loosen fastening bolt, make to have sufficient gap between flange 152 and the axle housing 4, can dismantle annular gasket 14 from the flange 152 outside, the cartridge is adjusted, need not take out the end cover from the hole of axle housing 4 completely like in the past, avoid the damage at the dismouting process, tapered roller bearing 13 has also been reduced and has been disassembled, the dress leads to the fact secondary pollution's risk. Therefore, the adjusting process is simple, the labor intensity is reduced, the production efficiency is improved, the structure of the part is simple, and the processing and manufacturing cost is low.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A pre-tightening adjusting mechanism of a tapered roller bearing is characterized in that: the bearing comprises a bearing mounting cover (15) and more than one annular gasket (14), wherein each annular gasket (14) is formed by combining a pair of semicircular gaskets;
the bearing mounting cover (15) comprises a sleeve (151), a flange (152) is horizontally arranged on the outer side wall of the lower end of the sleeve (151), a grease nozzle mounting hole (153) is formed in the bottom of the sleeve (151),
when the device is installed, the end part of the pin shaft (9) is installed through the tapered roller bearing (13) and the bearing installation cover (15), the outer ring of the tapered roller bearing (13) is fixedly installed with the inner side wall of the sleeve (151), and the inner ring of the tapered roller bearing (13) is installed with the outer side wall of the corresponding pin shaft (9) in an interference manner;
the mounting surface of the flange (152) is fixed with a fixed shell through more than one annular gasket (14) by bolts, and the pre-tightening adjustment requirement of the installation of the tapered roller bearing (13) can be realized by increasing or reducing the number of the annular gaskets (14).
2. The preload adjusting mechanism of a tapered roller bearing according to claim 1, wherein: the inner cylindrical surface of the sleeve (151) is a step surface, the inner diameter of the upper part of the sleeve (151) is larger than the inner diameter of the lower part of the sleeve (151), and the lower end of the outer ring of the tapered roller bearing (13) is arranged on a step (155) of the step surface; a circle of groove (156) is formed in the outer cylindrical surface of the sleeve (151), and an O-shaped ring (12) is arranged in the groove (156) in a matched mode during installation.
3. The preload adjusting mechanism of a tapered roller bearing according to claim 1, wherein: and an anti-collision boss (157) is arranged at the orifice of the grease nozzle mounting hole (153).
4. The preload adjusting mechanism of a tapered roller bearing according to claim 1, wherein: open grooves are uniformly formed in the inner circumference of each annular gasket (14), the open grooves correspond to the threaded holes (154) in the flange (152) one by one, and bolts penetrate through the open grooves and the corresponding threaded holes (154) to be fixedly connected with the flange (152) and the fixed shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120242730.8U CN214534117U (en) | 2021-01-28 | 2021-01-28 | Pre-tightening adjusting mechanism of tapered roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120242730.8U CN214534117U (en) | 2021-01-28 | 2021-01-28 | Pre-tightening adjusting mechanism of tapered roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214534117U true CN214534117U (en) | 2021-10-29 |
Family
ID=78312598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120242730.8U Active CN214534117U (en) | 2021-01-28 | 2021-01-28 | Pre-tightening adjusting mechanism of tapered roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214534117U (en) |
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2021
- 2021-01-28 CN CN202120242730.8U patent/CN214534117U/en active Active
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