CN216306484U - Split type thrust needle roller bearing - Google Patents
Split type thrust needle roller bearing Download PDFInfo
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- CN216306484U CN216306484U CN202122547881.7U CN202122547881U CN216306484U CN 216306484 U CN216306484 U CN 216306484U CN 202122547881 U CN202122547881 U CN 202122547881U CN 216306484 U CN216306484 U CN 216306484U
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- gasket
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- flanging
- thrust needle
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Abstract
The utility model discloses a split type thrust needle roller bearing which comprises a first gasket, a second gasket and a roller retainer assembly, wherein the first gasket is arranged on the first side of the roller retainer assembly; the center holes of the first gasket and the second gasket are both provided with flanges; the roller retainer assembly is sleeved on the outer side of the flanging of the second gasket and is in clearance fit with the second gasket; the first gasket is located the same one side of second gasket and roller holder assembly, laminate mutually with the side of second gasket and roller holder assembly, first gasket, second gasket and roller holder assembly are coaxial to be set up, the turn-ups constitutes certain angle, can utilize axial space to realize the location, save radial structure space, require lowly to the assembly environment, prevent simultaneously that the assembly from dropping, there is not special requirement to the cooperation work piece in the assembly, be applicable to the shaft hole cooperation of various conventional hydraulic automatic gearbox, the assembly upset in-process has been solved, the easy technical problem that drops of gasket that appears the seat hole location.
Description
Technical Field
The utility model belongs to the field of bearings, and relates to a split type needle roller thrust bearing.
Background
The structure of the needle roller thrust bearing in the existing hydraulic automatic transmission is mainly two, one is a split needle roller thrust bearing: a flat gasket, a retainer roller assembly and a flat gasket; the other type is an integrated thrust needle roller bearing, wherein two gaskets are provided with flanges and are locked together by a lock catch and a retainer.
In the first split type thrust needle roller bearing structure, two gaskets of the bearing are flat gaskets, positioning needs to be carried out by matching with a shaft or a seat hole, certain requirements are required on a longitudinal space structure, and the problem of poor positioning exists; if the two gaskets are positioned by matching with the shaft, an oil way is blocked, and the problem of unsmooth bearing lubrication exists; if the two gaskets have seat hole positioning, the gasket positioned by the seat hole is easy to drop in the assembling and overturning process.
In the second integrated thrust needle roller bearing structure, the gasket is easy to deform after heat treatment, so that the flanging and the locking port are displaced, the problem of locking failure is caused, and then the problems of matching failure, bearing failure and the like are caused; and the integral thrust needle roller bearing has higher requirements on manufacturability and higher production cost due to the existence of the flanging and the locking notch of the gasket. Therefore, the second structure is mostly used for small-size thrust needle roller bearings (with the outer diameter within 100 mm), and the deformation after heat treatment is small and easy to control.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that the split type thrust needle roller bearing of the existing hydraulic automatic transmission is not well positioned, an oil way is obstructed, and the assembly is easy to fall off; the split type thrust needle roller bearing is provided.
In order to achieve the purpose, the utility model adopts the following technical scheme to realize the purpose:
a split type thrust needle roller bearing comprises a first gasket, a second gasket and a roller retainer assembly;
the center holes of the first gasket and the second gasket are both provided with flanges;
the roller retainer assembly is sleeved on the outer side of the flanging of the second gasket and is in clearance fit with the second gasket;
the first gasket is positioned on the same side of the second gasket and the roller retainer assembly and is attached to the side faces of the second gasket and the roller retainer assembly, and the first gasket, the second gasket and the roller retainer assembly are coaxially arranged.
The utility model is further improved in that:
the flanging of the first gasket is acute-angled.
The flanging of the second gasket is in a right angle.
The flanging direction of the first gasket and the second gasket is the same, so that an oil inlet can be reserved between the first gasket and the second gasket.
The flanging of the first gasket is in clearance fit with the hole seating piece, and the hole seating piece comprises a chamfer, a transition horizontal table and an inner inclination angle;
the inclination angle of the inner inclination angle is the same as the flanging degree of the first gasket;
the transition horizontal platform and the chamfer are matched with the acute angle of the first gasket flange, the chamfer degree of the chamfer is greater than the inclination degree of the inner inclination angle, and the chamfer and the inner inclination angle are connected through the transition horizontal platform.
The degree of the chamfer is 45 degrees.
The degree of the first gasket flanging is 20-30 degrees.
The chamfer angle of the second gasket flanging is larger than the chamfer angle of the workpiece matched with the second gasket flanging.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides a split type thrust needle roller bearing which comprises a first gasket, a second gasket and a roller retainer assembly, wherein flanges are arranged in central holes of the first gasket and the second gasket, and form a certain angle, so that the positioning can be realized by utilizing an axial space, the radial structural space is saved, the requirement on an assembly environment is low, the assembly is prevented from falling off, and meanwhile, no special requirement on a matched workpiece in the assembly is required, so that the split type thrust needle roller bearing is suitable for the matching of shaft holes of various conventional hydraulic automatic transmissions; the roller retainer assembly is sleeved on the outer side of the flanging of the second gasket and is in clearance fit with the second gasket; the first gasket is positioned on the same side of the second gasket and the roller retainer assembly and is attached to the side face of the second gasket and the side face of the roller retainer assembly, and the first gasket, the second gasket and the roller retainer assembly are coaxially arranged, so that the roller retainer assembly and the gasket are free of a boss of the integrated thrust needle bearing, which is matched with a lock opening, the manufacturability is good, the processing is easy, the heat treatment deformation is insensitive, and the problem of failure of the fit caused by large deformation after heat treatment is avoided.
Furthermore, the flanging of the first gasket and the plane body form an acute angle, so that positioning can be better realized, falling off is prevented, and the mounting stability is ensured.
Furthermore, the flanging directions of the first gasket and the second gasket are the same, so that an oil inlet can be reserved between the first gasket and the second gasket, lubricating liquid can conveniently enter, and the bearing can be well lubricated without reserving a lubricating structure.
Furthermore, in the utility model, the seat hole piece matched with the first gasket flanging comprises the chamfer, the transition horizontal table and the inner inclination angle, wherein the inclination of the inner inclination angle is the same as the acute angle degree of the first gasket flanging, so that the matching between the gasket and a workpiece is ensured, and the chamfer degree of the chamfer is greater than the inclination degree of the inner inclination angle, so that the limiting effect can be better optimized, the stability of axial positioning is improved, and the gasket is prevented from falling off.
Furthermore, the chamfer angle of the second gasket flanging is larger than the chamfer angle of a workpiece matched with the second gasket flanging, so that the problem of mismatch caused by mutual interference in installation is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of a partial structure in assembly according to the present invention;
FIG. 2 is a partial schematic view of a landing member of the present invention;
FIG. 3 is an assembly schematic of the present invention;
FIG. 4 is a schematic view of the oil flow direction of the present invention;
FIG. 5 is a schematic cross-sectional view of the present invention;
FIG. 6 is a schematic cross-sectional partial structure of the present invention.
Wherein: 1-a first gasket; 2-a second gasket; 3-a roller cage assembly; 4-a mating shaft; 5-a seat hole piece; 6-chamfering; 7-inclination angle.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "horizontal", "inner", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience and simplicity, but the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The utility model is described in further detail below with reference to the accompanying drawings:
referring to fig. 1-6, the embodiment of the utility model discloses a split type needle thrust bearing, which comprises a first gasket 1, a second gasket 2 and a roller cage assembly 3; the center holes of the first gasket 1 and the second gasket 2 are both provided with flanges; the roller retainer assembly 3 is sleeved on the outer side of the flanging of the second gasket 2 and is in clearance fit with the second gasket 2; the first gasket 1 is located on the same side of the second gasket 2 and the roller retainer assembly 3 and is attached to the side faces of the second gasket 2 and the roller retainer assembly 3, and the first gasket 1, the second gasket 2 and the roller retainer assembly 3 are coaxially arranged.
The flanging of the first gasket 1 and the plane body of the first gasket 1 form an acute angle. The flanging of the second gasket 2 and the plane body of the second gasket 2 form a right angle. The flanging directions of the first gasket 1 and the second gasket 2 are the same, so that an oil inlet can be reserved between the first gasket 1 and the second gasket 2. The flanging of the first gasket 1 is in clearance fit with the seat hole piece 5, and the matching part of the seat hole piece 5 and the flanging chamfer of the first gasket 1 comprises a chamfer 6, a transition horizontal platform and an inner inclination angle 7; the inclination of the inner inclination angle 7 is the same as the acute angle degree of the flanging of the first gasket 1; the chamfer angle degree of the chamfer 6 is greater than the inclination degree of the inner inclination angle 7, and the chamfer 6 is connected with the inner inclination angle 7 through a transition horizontal platform.
The degree of the chamfer 6 is 45 degrees. The flanging angle of the first gasket 1 is 20-30 degrees. The chamfer angle of the flanging of the second gasket 2 is larger than the chamfer angle of the workpiece matched with the flanging of the second gasket 2, and the length of the flanging is 4-5 mm.
The specific implementation mode of the utility model is as follows:
pressing the first spacer 1 into the fitting shaft 4;
pressing the roller retainer assembly 3 into the second gasket 2;
pressing the first gasket 1 into the seat hole piece 5;
and (3) assembling a sub-assembly consisting of the hole seat piece 5 and the first gasket into a sub-assembly consisting of the matching shaft 4, the second gasket 1 and the roller retainer assembly 3.
The first gasket 1 is L-shaped, the flanging and the plane body form an acute angle, and the positioning is realized by utilizing the axial space, so that the radial structural space is saved, and the assembly is prevented from falling; the second gasket 2 is L-shaped, and the flanging forms a right angle with the plane body; the roller retainer assembly 3 is separated from the two gaskets, the manufacturability is good, and the processing difficulty does not exist.
The first gasket 1 is positioned by the seat hole piece 5, and the second gasket 2 is positioned by the matching shaft 4; the roller retainer assembly 3 is positioned by the gasket 2, and all the components are in clearance fit.
In the assembly environment, the flanging directions of the two gaskets are the same, and oil (medium) inlets and oil outlets are reserved at the radial upper end and the left lower end, so that lubricating liquid can conveniently enter, and the good lubrication of the bearing is ensured.
The round angle of the matching position of the matching shaft 4 and the gasket 2 is smaller than the round angle of the gasket 2, so that interference is prevented, and the problem of falling off in the assembling process is avoided.
The joint of the hole seating piece 5 and the chamfer of the first gasket 1 consists of a chamfer 6, a transition horizontal platform and an inner inclination angle 7; the inner inclination angle 7 and the vertical edge angle of the seat hole piece 5 are acute angles, and the degree of the acute angle is the same as the flanging angle of the first gasket 1. Chamfer 6 is favorable to the assembly of gasket 1 to be impressed, and inclination 7 has guaranteed the adaptation of gasket 1 with seat hole spare 5, and wherein, the chamfer number of degrees of chamfer 6 is greater than inclination 7's the number of degrees of inclination, can prevent like this that first gasket 1 from droing, plays fine limiting displacement. Chamfer 6 makes things convenient for impressing of first gasket 1, and the interface intensity is guaranteed to the horizontal stand, and inclination 7 does benefit to the location of first gasket 1.
The bearing components are made of common bearing steel; the matching shaft 4 and the seat hole piece 5 are made of common steel pieces, so that the manufacturability is good, and the manufacturing cost is low.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The split type thrust needle roller bearing is characterized by comprising a first gasket (1), a second gasket (2) and a roller retainer assembly (3);
the center holes of the first gasket (1) and the second gasket (2) are provided with flanges;
the roller retainer assembly (3) is sleeved on the outer side of the flanging of the second gasket (2) and is in clearance fit with the second gasket (2);
the first gasket (1) is located on the same side of the second gasket (2) and the roller retainer assembly (3) and is attached to the side faces of the second gasket (2) and the roller retainer assembly (3), and the first gasket (1), the second gasket (2) and the roller retainer assembly (3) are coaxially arranged.
2. The split thrust needle bearing of claim 1, wherein the flange of the first shim (1) is at an acute angle.
3. The split thrust needle bearing as claimed in claim 2, wherein the flange of the second washer (2) is at right angles.
4. The split type thrust needle roller bearing is characterized in that flanging directions of the first gasket (1) and the second gasket (2) are the same, so that an oil inlet is reserved between the first gasket (1) and the second gasket (2).
5. The split thrust needle bearing of claim 4, wherein the flange of the first shim (1) is clearance fitted with a seat member (5), the seat member (5) comprising a chamfer (6), a transition level and an inclination angle (7);
the inner inclination angle (7) is attached to the flanging of the first gasket (1), and the inclination of the inner inclination angle (7) is the same as the flanging degree of the first gasket (1);
transition horizontal stand and chamfer (6) cooperate with the turn-ups's of first gasket (1) acute angle, the chamfer number of degrees of chamfer (6) is greater than the inclination number of degrees of inclination (7), and chamfer (6) and inclination (7) are connected through the transition horizontal stand.
6. The split thrust needle roller bearing of claim 5, wherein the degree of the chamfer (6) is 45 degrees.
7. The split thrust needle roller bearing according to any one of claims 1 to 6, wherein the degree of burring of the first shim (1) is 20 to 30 degrees.
8. The split thrust needle bearing of claim 7, wherein the chamfer of the second gasket (2) flange is greater than the chamfer of a workpiece with which the second gasket (2) flange is fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122547881.7U CN216306484U (en) | 2021-10-21 | 2021-10-21 | Split type thrust needle roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122547881.7U CN216306484U (en) | 2021-10-21 | 2021-10-21 | Split type thrust needle roller bearing |
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| Publication Number | Publication Date |
|---|---|
| CN216306484U true CN216306484U (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122547881.7U Active CN216306484U (en) | 2021-10-21 | 2021-10-21 | Split type thrust needle roller bearing |
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| CN (1) | CN216306484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355247A (en) * | 2022-08-31 | 2022-11-18 | 陕西法士特齿轮有限责任公司 | Thrust needle roller bearing assembly and speed changer |
-
2021
- 2021-10-21 CN CN202122547881.7U patent/CN216306484U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355247A (en) * | 2022-08-31 | 2022-11-18 | 陕西法士特齿轮有限责任公司 | Thrust needle roller bearing assembly and speed changer |
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