CN212616201U - Bearing anti-disengaging structure and hub reduction gear - Google Patents
Bearing anti-disengaging structure and hub reduction gear Download PDFInfo
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- CN212616201U CN212616201U CN202021141340.3U CN202021141340U CN212616201U CN 212616201 U CN212616201 U CN 212616201U CN 202021141340 U CN202021141340 U CN 202021141340U CN 212616201 U CN212616201 U CN 212616201U
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Abstract
The utility model discloses a bearing anti-disengaging structure and wheel reduction gear. The bearing anti-falling structure comprises a fixed piece, a rotating bearing and an anti-loosening adjusting assembly; the rotating piece is sleeved outside the fixing piece; the rotating bearing is arranged between the fixed part and the rotating part and is used for rotationally connecting the fixed part and the rotating part; the locking adjusting assembly is arranged on the fixing piece and abutted to the rotating bearing, and the locking adjusting assembly is used for axially adjusting the axial clearance of the rotating bearing and locking the rotating bearing. The technical proposal provided by the utility model can adjust the axial clearance of the rotating bearing, thereby ensuring that the rotating bearing has enough allowance for thermal expansion and cold contraction during working and preventing the rotating bearing from failure; and the anti-loosening adjusting assembly can also lock the rotating bearing to prevent the rotating bearing from being connected and losing efficacy, so that the connection between the rotating part and the fixing part is more reliable.
Description
Technical Field
The utility model relates to a reduction gear technical field, concretely relates to bearing anti-disengaging structure and wheel reduction gear.
Background
In a heavy-duty car hub reduction gear, round nuts can be used for fixing a pair of back-to-back tapered roller hub bearings, and the play of the bearings can be adjusted. Alternating loads from the wheel will constantly impact the hub bearing and then be transferred to the round nut. If the function of connecting and fixing the round nuts fails, the wheel and the frame are loosened or even disassembled. Therefore, the reliability of the anti-loosening performance of the round nut of the heavy-duty car has very important significance.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses a main aim at provides a bearing anti-disengaging structure and wheel reduction gear aims at improving the reliability of traditional bearing locking.
In order to achieve the above object, the utility model provides a bearing anti-disengaging structure, include:
a fixing member;
the rotating piece is sleeved outside the fixing piece;
the rotating bearing is arranged between the fixed part and the rotating part and is used for rotationally connecting the fixed part and the rotating part; and the number of the first and second groups,
the locking adjusting assembly is arranged on the fixing piece and abutted to the rotating bearing, and the locking adjusting assembly is used for axially adjusting the axial clearance of the rotating bearing and locking the rotating bearing.
Optionally, the anti-loosening adjustment assembly comprises:
the propping piece is arranged on the fixed piece and is propped against the end part of the outer ring of the rotating bearing along the axial direction of the rotating piece;
the locking nut is sleeved on the outer side of the fixing piece and abuts against the end part of the abutting piece along the axial direction of the rotating piece; and the number of the first and second groups,
and the nut adjusting structure is movably connected with the abutting piece and the locking nut and used for adjusting the position of the locking nut in the axial direction of the rotating piece.
Optionally, the nut adjusting structure includes an adjusting part connecting the abutting part and the lock nut;
the adjusting piece is provided with a first locking part and a second locking part;
the abutting piece is provided with a first limiting portion matched with the first locking portion, and the locking nut is provided with a second limiting portion matched with the second locking portion.
Optionally, the adjusting member includes an adjusting block connected to the abutting member and the lock nut and extending in the axial direction of the rotating member;
the two ends of the adjusting block are respectively provided with the first locking part and the second locking part;
the abutting piece is annularly arranged and sleeved outside the fixing piece, the first limiting part is a first limiting groove which is formed in the abutting piece and faces the locking nut, and the first locking part is matched with the first limiting groove;
the second limiting portion is a second limiting groove formed in the locking nut, the second limiting groove corresponds to the first limiting groove, and the second locking portion is matched with the second limiting groove.
Optionally, at least one first limiting groove is arranged; the second limiting groove is provided with at least one limiting groove.
Optionally, the first limiting groove is provided with a plurality of limiting grooves, the second limiting groove is provided with a plurality of limiting grooves, and the number of the first limiting grooves is different from the number of the second limiting grooves.
Optionally, when one of the second limiting grooves is opposite to one of the first limiting grooves, the rest of the second limiting grooves are staggered with the rest of the first limiting grooves.
Optionally, the abutting piece comprises an abutting block body and an extending section, wherein the extending section extends from the abutting block body to one side of the rotating bearing and along the axial direction of the rotating piece;
the fixed part with the extension section passes through the key-type connection, rolling bearing locates the extension section with rotate between the piece.
Optionally, a first mounting hole is formed in the abutting piece, a second mounting hole corresponding to the first mounting hole is formed in the adjusting block, and the abutting piece and the adjusting block are in threaded connection through a screw penetrating through the first mounting hole and the second mounting hole.
The utility model also provides a wheel reduction, including bearing anti-disengaging structure, bearing anti-disengaging structure includes:
a fixing member;
the rotating piece is sleeved outside the fixing piece;
the rotating bearing is arranged between the fixed part and the rotating part and is used for rotationally connecting the fixed part and the rotating part; and the number of the first and second groups,
the anti-loosening adjusting assembly is arranged on the fixing piece and is abutted against the rotating bearing, and the anti-loosening adjusting assembly is used for axially adjusting the axial clearance of the rotating bearing and locking the rotating bearing;
the fixing piece is arranged as an inner shell, the rotating piece is arranged as an outer shell, and the outer shell is arranged on the outer side of the inner shell.
In the technical scheme provided by the utility model, the rotating bearing is connected between the rotating part and the fixing part, the rotation of the bearing can make the rotation of the rotating part smoother, and the fixing part is provided with the anti-loosening adjusting component, so that the axial clearance of the rotating bearing can be adjusted, and the rotating bearing has enough allowance for thermal expansion and cold contraction during working, so as to prevent the failure of the rotating bearing; and the anti-loosening adjusting assembly can also lock the rotating bearing to prevent the rotating bearing from being connected and losing efficacy, so that the connection between the rotating part and the fixing part is more reliable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic view of a partial cross-sectional structure of an embodiment of a bearing anti-disengaging structure provided in the present invention;
fig. 2 is a schematic structural view of the anti-loose adjustment assembly shown in fig. 1.
The reference numbers illustrate:
the object of the present invention is to provide a novel and advantageous solution for the above mentioned problems.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if the present invention relates to a directional indication, the directional indication is only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
In a heavy-duty car hub reduction gear, round nuts can be used for fixing a pair of back-to-back tapered roller hub bearings, and the play of the bearings can be adjusted. Alternating loads from the wheel will constantly impact the hub bearing and then be transferred to the round nut. If the function of connecting and fixing the round nuts fails, the wheel and the frame are loosened or even disassembled. Therefore, the reliability of the anti-loosening performance of the round nut of the heavy-duty car has very important significance. In view of this, the utility model provides a bearing anti-disengaging structure and wheel reduction gear to improve the reliability that the bearing is connected, fig. 1 to fig. 2 are the utility model provides an embodiment of a bearing anti-disengaging structure.
The hub reduction gear includes bearing anti-disengaging structure 100, bearing anti-disengaging structure 100 is applicable in the connection of the interior outer casing of hub reduction gear to guarantee that the connection of wheel and frame is reliable. Specifically, referring to fig. 1, in the present embodiment, the bearing anti-slip structure 100 includes a fixed member 1, a rotating member 2, a rotating bearing 4, and an anti-loose adjusting assembly 3. The rotating part 2 is sleeved outside the fixing part 1; the rotating bearing 4 is arranged between the fixed part 1 and the rotating part 2 and is used for rotatably connecting the fixed part 1 and the rotating part 2; the locking adjusting assembly 3 is arranged on the fixing piece 1 and is abutted to the rotating bearing 4, and the locking adjusting assembly 3 is used for axially adjusting the axial clearance of the rotating bearing 4 and locking the rotating bearing 4. In the wheel reduction gear, the fixed member 1 corresponds to an inner shell of the wheel reduction gear, and the rotating member 2 corresponds to an outer shell of the wheel reduction gear; the fixed part 1 and the rotating part 2 are not limited to only the connection of the outer and inner shells of the hub reduction gear, but can obviously be applied to any device in which the bearing is subjected to an axial force.
In the technical scheme provided by the utility model, the rotating bearing 4 is connected between the rotating part 2 and the fixing part 1, the bearing rotation can make the rotation of the rotating part 2 smoother, and the anti-loosening adjusting component 3 is arranged on the fixing part 1, so that the axial clearance of the rotating bearing 4 can be adjusted, and the rotating bearing 4 has sufficient allowance for thermal expansion and cold contraction during working, so as to prevent the failure of the rotating bearing 4; and the anti-loose adjusting component 3 can also lock the rotating bearing 4 to prevent the connection failure of the rotating bearing 4, so that the connection between the rotating part 2 and the fixed part 1 is more reliable.
The arrangement form of the anti-loose adjusting assembly 3 is various, and in an embodiment, the anti-loose adjusting assembly 3 may include an abutting piece 31, a lock nut 32 and a nut adjusting structure 33; the propping piece 31 is arranged on the fixed piece 1 and props against the end part of the outer ring of the rotating bearing 4 along the axial direction of the rotating piece 2; the locking nut 32 is sleeved outside the fixing member 1 and abuts against the end of the abutting member 31 along the axial direction; the nut adjusting structure 33 is movably connected with the abutting part 31 and the locking nut 32, and is used for adjusting the position of the locking nut 32 in the axial direction of the rotating part 2, and adjusting the axial movement of the abutting part 31 along the rotating part 2 by adjusting the position of the locking nut 32 in the axial direction of the rotating part 2, so that the bearing play of the rotating bearing 4 can be adjusted. In the wheel reduction gear, the abutting part 31 may be provided as a gear ring connecting disc, the gear ring connecting disc is connected with an inner shell (i.e., a non-rotating shell) of the wheel reduction gear through a connecting key, and the gear ring connecting disc has a step portion arranged in the axial direction so as to abut against the end portion of the rotating bearing 4, so that the rotating bearing 4 is limited and a certain clearance allowance is left.
Specifically, the abutting piece 31 includes an abutting block body and an extending section extending from the abutting block body to one side of the rotating bearing 4 and along the axial direction of the rotating member 2, and the transition between the extending section and the abutting block body forms the step portion to abut against the end portion of the outer ring of the rotating bearing 4; the fixing piece 1 is connected with the extension section through a connecting key; the rotating bearing 4 is arranged between the extending section and the rotating part 2, and the stepped part formed by the abutting block body and the extending section abuts against the end part of the rotating bearing 4, so that the rotating bearing 4 is limited, and the rotating bearing 4 is limited.
Further, the nut adjusting structure 33 includes an adjusting member connecting the abutting member 31 and the locking nut 32, and the adjusting member is provided with a first locking portion and a second locking portion; the abutting piece 31 is provided with a first limiting portion matched with the first locking portion, the locking nut 32 is provided with a second limiting portion matched with the second locking portion, and the position of the locking nut 32 is fixed through matching of the first locking portion and the first limiting portion and matching of the second locking portion and the second limiting portion, so that the locking nut 32 is locked to prevent the locking nut 32 from loosening and enabling the rotating bearing 4 to be connected and disabled.
Further, referring to fig. 2, the adjusting element includes an adjusting block 331 connected to the abutting element 31 and the lock nut 32 and extending along the radial direction of the rotating element 2, and two ends of the adjusting block 331 are respectively provided with the first locking portion and the second locking portion; the supporting member 31 is annularly arranged and sleeved outside the rotating member 2, the first limiting portion is a first limiting groove 311 which is formed on the supporting member 31 and faces the locking nut 32, and the first locking portion is matched with the first limiting groove 311; the second limiting part is a second limiting groove 321 formed in the lock nut 32, the second limiting groove 321 is arranged corresponding to the first limiting groove 311, a notch of the second limiting groove 321 is arranged towards the periphery of the lock nut 32, and the second locking part is matched with the second limiting groove 321; the adjusting block 331 is clamped in the first limiting groove 311 and the second limiting groove 321 to limit the circumferential rotation of the lock nut 32, so that the lock nut 32 is locked.
Compared with the conventional locking nut 32 which is locked by a locking washer, the locking washer is a standard part, on one hand, the locking washer is thin in thickness and can bear small force, and the locking washer is very easy to fail in a heavy automobile; on the other hand, the support lug of the locking washer needs to be tilted during assembly, and then the locking washer is inserted into the clamping groove of the locking nut 32, so that assembly cracks are easy to occur during assembly, and therefore the locking washer is easy to break and lose efficacy during use, and accidents are caused.
In the utility model, the locking nut 32 is locked by the adjusting block 331, the thickness of the adjusting block 331 can be adjusted according to the force bearing condition and can be set to be at least 4 times of the thickness of the locking washer, so the strength is obviously improved; and the adjusting block 331 is directly clamped in the first limiting groove 311 of the abutting piece 31 and the second limiting groove 321 of the locking nut 32 during installation, so that the structure is simple, and the installation is convenient.
Moreover, during specific installation, the axial play of the rotary bearing 4 can be adjusted by rotating the lock nut 32, and when the lock nut 32 is rotated to make the second limiting groove 321 opposite to one first limiting groove 311, the adjustment distance can be calculated by the rotation angle of the lock nut 32 and the thread pitch of the lock nut 32, so as to better control the axial play of the rotary bearing 4.
In another embodiment, when the first limiting grooves 311 are provided in plural, and the second limiting grooves 321 are also provided in plural, the number of the first limiting grooves 311 is different from the number of the second limiting grooves 321, so that the number of the first limiting grooves 311 is smaller than the number of the second limiting grooves 321, or the number of the first limiting grooves 311 is set to be larger than the number of the second limiting grooves 321, thereby enabling adjustment of a smaller angle. Since the axial play of the pivot bearing 4 is generally between 0.07mm and 0.15mm, it is preferable that the adjustment is more accurate as the rotation angle of the lock nut 32 is smaller in the process of adjusting the axial play. For example, when the thread pitch of the lock nut 32 is 2mm, if the lock nut 32 can adjust an axial play of 0.05mm every time the lock nut 32 is adjusted, the lock nut 32 should rotate every time the lock nut 32 rotates so that one of the second limiting grooves 321 is opposite to one of the first limiting grooves 311, and the rotation angle of the lock nut 32 should be 9 °, which is 360/(2/0.05).
In addition, the supporting member 31 and the lock nut 32 are respectively provided with a plurality of first limiting grooves 311 and a plurality of second limiting grooves 321, when one of the second limiting grooves 321 is opposite to one of the first limiting grooves 311, the rest of the second limiting grooves 321 are staggered with the rest of the first limiting grooves 311; when the lock nut 32 rotates, only one first limiting groove 311 and one second limiting groove 321 can be opposite to each other, so that the rotation angle can be ensured to be small, the adjustment is more accurate, the structural strength of the abutting piece 31 and the lock nut 32 can be ensured, and the lock nut 32 can be locked more reliably.
Specifically, when 8 first limiting grooves 311 are formed in the abutting member 31 and 5 second limiting grooves 321 are formed in the lock nut 32, the minimum adjustment angle is just 9 ° when the position of the second limiting groove 321 is changed every time. Of course, the number of the first limiting grooves 311 and the second limiting grooves 321 may be reasonably set according to the specific bearing play precision requirement of the hub reduction gear.
Specifically, when the lock nut 32 is screwed in during installation, the rotating bearing 4 is pressed until the rotating member 2 cannot rotate, the lock nut 32 is then reversed to enable the rotating member 2 to rotate within a specified torque range, so that the rotation angle of the lock nut 32 is minimized, and one of the second limiting grooves 321 is opposite to one of the first limiting grooves 311, and then the adjusting block 331 is installed to lock the position of the lock nut 32.
In order to further ensure the locking reliability of the locking nut 32, a first mounting hole is formed in the abutting piece 31, a second mounting hole corresponding to the first mounting hole is formed in the adjusting block 331, and the abutting piece 31 and the adjusting block 331 are in threaded connection through a screw 5 penetrating through the first mounting hole and the second mounting hole so as to fix the adjusting block 331 and prevent the adjusting block 331 from falling off. Specifically, a locking washer is further disposed at a connection position of the screw 5 and the adjusting block 331 to prevent the screw 5 from loosening.
Bearing anti-disengaging structure 100 is applicable in all structures that have a bearing, nevertheless works as rolling bearing 4 sets up the suitability better when setting up to tapered roller bearing, because tapered roller bearing generally can bear the axial component, consequently lock nut 32 can constantly receive axial shock and vibration, and passes through the utility model discloses a bearing anti-disengaging structure 100 can make lock nut 32's locking is more reliable, and also makes tapered roller bearing's axial internal clearance is more convenient for adjust.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings or directly or indirectly applied to other related technical fields are included in the same way in the protection scope of the present invention.
Claims (10)
1. The utility model provides a bearing anti-disengaging structure which characterized in that includes:
a fixing member;
the rotating piece is sleeved outside the fixing piece;
the rotating bearing is arranged between the fixed part and the rotating part and is used for rotationally connecting the fixed part and the rotating part; and the number of the first and second groups,
the locking adjusting assembly is arranged on the fixing piece and abutted to the rotating bearing, and the locking adjusting assembly is used for axially adjusting the axial clearance of the rotating bearing and locking the rotating bearing.
2. The bearing trip prevention structure of claim 1 wherein said trip prevention adjustment assembly comprises:
the propping piece is arranged on the fixed piece and is propped against the end part of the outer ring of the rotating bearing along the axial direction of the rotating piece;
the locking nut is sleeved on the outer side of the fixing piece and abuts against the end part of the abutting piece along the axial direction of the rotating piece; and the number of the first and second groups,
and the nut adjusting structure is movably connected with the abutting piece and the locking nut and used for adjusting the position of the locking nut in the axial direction of the rotating piece.
3. The bearing trip-preventing structure according to claim 2, wherein the nut adjusting structure includes an adjusting member connecting the abutting member and the lock nut;
the adjusting piece is provided with a first locking part and a second locking part;
the abutting piece is provided with a first limiting portion matched with the first locking portion, and the locking nut is provided with a second limiting portion matched with the second locking portion.
4. The bearing anti-dropping structure according to claim 3, wherein the adjusting member includes an adjusting block connecting the abutting member and the lock nut and extending in an axial direction of the rotating member;
the two ends of the adjusting block are respectively provided with the first locking part and the second locking part;
the abutting piece is annularly arranged and sleeved outside the fixing piece, the first limiting part is a first limiting groove which is formed in the abutting piece and faces the locking nut, and the first locking part is matched with the first limiting groove;
the second limiting portion is a second limiting groove formed in the locking nut, the second limiting groove corresponds to the first limiting groove, and the second locking portion is matched with the second limiting groove.
5. The bearing separation prevention structure of claim 4 wherein at least one of the first limiting grooves is provided; the second limiting groove is provided with at least one limiting groove.
6. The bearing separation prevention structure according to claim 4, wherein a plurality of first stopper grooves are provided, a plurality of second stopper grooves are provided, and the number of the first stopper grooves is different from the number of the second stopper grooves.
7. The bearing trip-preventing structure of claim 6, wherein when one of the second retaining grooves is opposite to one of the first retaining grooves, the remaining second retaining grooves are staggered from the remaining first retaining grooves.
8. The bearing retaining structure according to claim 2, wherein the abutting member includes an abutting block body, and an extending section extending from the abutting block body toward a side of the rotary bearing and along an axial direction of the rotary member;
the fixed part with the extension section passes through the key-type connection, rolling bearing locates the extension section with rotate between the piece.
9. The bearing anti-drop structure of claim 4, wherein the abutting member is provided with a first mounting hole, the adjusting block is provided with a second mounting hole corresponding to the first mounting hole, and the abutting member and the adjusting block are in threaded connection through screws inserted into the first mounting hole and the second mounting hole.
10. A hub reduction gear, comprising the bearing retaining structure according to any one of claims 1 to 9, wherein the fixed member is provided as an inner shell, the rotating member is provided as an outer shell, and the outer shell is provided outside the inner shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021141340.3U CN212616201U (en) | 2020-06-18 | 2020-06-18 | Bearing anti-disengaging structure and hub reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021141340.3U CN212616201U (en) | 2020-06-18 | 2020-06-18 | Bearing anti-disengaging structure and hub reduction gear |
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| Publication Number | Publication Date |
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| CN212616201U true CN212616201U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021141340.3U Active CN212616201U (en) | 2020-06-18 | 2020-06-18 | Bearing anti-disengaging structure and hub reduction gear |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113459727A (en) * | 2021-09-06 | 2021-10-01 | 徐州万泽机械科技有限公司 | Rear axle main reducer wheel edge structure and machining method |
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2020
- 2020-06-18 CN CN202021141340.3U patent/CN212616201U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113459727A (en) * | 2021-09-06 | 2021-10-01 | 徐州万泽机械科技有限公司 | Rear axle main reducer wheel edge structure and machining method |
| CN113459727B (en) * | 2021-09-06 | 2021-11-16 | 徐州万泽机械科技有限公司 | Rear axle main reducer wheel edge structure and machining method |
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