CN217801372U - Auxiliary assembling tool for crankshaft oil seal assembly - Google Patents
Auxiliary assembling tool for crankshaft oil seal assembly Download PDFInfo
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- CN217801372U CN217801372U CN202221876486.1U CN202221876486U CN217801372U CN 217801372 U CN217801372 U CN 217801372U CN 202221876486 U CN202221876486 U CN 202221876486U CN 217801372 U CN217801372 U CN 217801372U
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- oil seal
- bearing
- connecting portion
- seal assembly
- screw rod
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Abstract
The utility model discloses a crankshaft oil blanket assembly auxiliary assembly frock, include: the oil seal device comprises a base plate, wherein a positioning part and a connecting screw rod are arranged at a preset position of the base plate, and the positioning part is used for fixing an oil seal seat; the pressing plate is used for fixing the oil seal and movably sleeved with the connecting screw rod; the thrust component comprises a compression nut and a decoupling bearing, the compression nut is screwed on the connecting screw rod, the decoupling bearing is movably sleeved on the connecting screw rod and is located between the compression nut and the pressing plate, the decoupling bearing comprises a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are rotatably connected through a rolling component, the compression nut is fixedly connected with the first connecting portion, and the second connecting portion can be abutted to the pressing plate. The utility model discloses add the decoupling zero bearing between gland nut and clamp plate for on the actual moment of torsion that is applied to gland nut is almost all used the packing force to the clamp plate, and the packing force is applyed evenly, guarantees the pressure equipment precision, avoids appearing the condition that the bent axle oil blanket deviates from in the use.
Description
Technical Field
The utility model relates to the technical field of engines, concretely relates to crankshaft oil blanket assembly auxiliary assembly frock.
Background
The bent axle oil blanket of engine is as the important ring of the motor seal, and its pressure equipment quality is directly influencing the quality of sealed function, and the engine bent axle oil blanket assembly commonly used at present is split type structure, need impress the oil blanket seat of oil blanket during the use, if the pressure equipment power is applyed inhomogeneously in the pressure equipment in-process, will cause the oil blanket skeleton to warp the slope, and the oil blanket gradient after the pressure equipment is poor, and then leads to the condition that the bent axle oil blanket was deviate from to appear in the use.
In the oil seal press-fitting tool in the prior art, a screw nut is used for screwing to apply acting force to a pressing plate, and an oil seal sleeved on the pressing plate is pressed and fitted in an oil seal seat.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a crankshaft oil seal assembly auxiliary assembly frock is exerted on gland nut's the almost whole packing force of using to the pressure plate portion of actual moment of torsion, and the packing force is exerted evenly, guarantees that the oil blanket skeleton can not warp, guarantees that the oil blanket gradient after the pressure equipment is located error range, avoids appearing the condition that the crankshaft oil blanket deviates from in the use.
In order to solve the technical problem, the utility model provides a crankshaft oil seal assembly auxiliary assembly frock, include:
the oil seal device comprises a base plate, a positioning component and a connecting screw rod, wherein the base plate is provided with the positioning component and the connecting screw rod at a preset position, and the positioning component is used for fixing an oil seal seat;
the pressing plate is used for fixing the oil seal, and the connecting screw rod is movably sleeved on the pressing plate;
the thrust component comprises a compression nut and a decoupling bearing, the compression nut is screwed on the connecting screw rod, the decoupling bearing is movably sleeved on the connecting screw rod and is positioned between the compression nut and the pressing plate, the decoupling bearing comprises a first connecting part and a second connecting part, the first connecting part and the second connecting part are rotatably connected through a rolling component, the compression nut is fixedly connected with the first connecting part, and the second connecting part can be abutted against the pressing plate.
The utility model discloses add the decoupling zero bearing between gland nut and clamp plate, and the first connecting portion fixed connection of gland nut and decoupling zero part, when twisting gland nut promptly, first connecting portion can rotate with gland nut in step, pass through rolling part rotatable coupling between first connecting portion and the second connecting portion simultaneously, the second connecting portion still keep quiescent condition promptly, and frictional force is very little between first connecting portion and the second connecting portion, gland nut moves along connecting screw to the second connecting portion can with the clamp plate portion butt when, keep relative quiescent condition between second connecting portion and the clamp plate portion, transmit the packing force to the clamp plate, it is thus visible, in the whole power transmission process by gland nut to clamp plate, there is almost no power loss, the actual moment of torsion of being exerted on gland nut is almost all used on the packing force to the clamp plate portion, and the packing force is exerted evenly, guarantee that the oil blanket skeleton can not warp, and then guarantee that the oil blanket gradient after the pressure equipment is located the error range, avoid appearing the condition that the bent axle oil blanket is deviate from in the use.
Optionally, the gland nut towards the one end of clamp plate is provided with annular installation department, decoupling bearing is radial bearing, in radial bearing's inner circle and outer lane, one is first connecting portion, with annular installation department fixed connection, the other is the second connecting portion, can with the clamp plate butt.
Optionally, the annular mounting portion is in interference fit with an inner ring of the radial bearing.
Optionally, the decoupling bearing is a thrust bearing, the thrust bearing includes a first end wall and a second end wall, the first end wall is the first connecting portion and is fixedly connected to the compression nut, and the second end wall is the second connecting portion and can be abutted to the pressing plate.
Optionally, the decoupling bearing is a ball bearing and the rolling component is a ball.
Optionally, the pressing plate includes a main body portion and a protrusion portion disposed on the main body portion, the protrusion portion forms a step surface facing the bottom plate, and a diameter of the main body portion matches with an inner diameter of the oil seal.
Optionally, the protrusion includes a plurality of protrusions, and the plurality of protrusions are distributed at intervals along the circumferential direction of the main body portion.
Optionally, the thrust member further includes a clamp ring, the clamp ring movably fits the connection screw and is located between the decoupling bearing and the pressure plate, and an axial end wall area of the clamp ring is larger than an axial end wall area of the decoupling bearing.
Optionally, the number of the positioning parts is two or more, and each group of the positioning parts is used for fixing the oil seal seat of one size specification.
Optionally, the positioning component includes a positioning pin and a fixing portion disposed on the bottom plate, and the positioning pin and the fixing portion are detachably fixed.
Drawings
Fig. 1 is a schematic structural diagram of a specific embodiment of an auxiliary assembly fixture for a crankshaft oil seal assembly provided in the present invention;
FIG. 2 is a schematic structural view of the auxiliary assembly fixture of the crankshaft oil seal assembly of FIG. 1 at a second angle;
FIG. 3 is a partial cross-sectional view of the auxiliary assembly fixture of the crankshaft oil seal assembly of FIG. 2;
wherein the reference numerals in fig. 1-3 are explained as follows:
1-a bottom plate; 2-connecting a screw rod; 3, pressing a plate; 31-a body portion; 32-protrusions; 4-a compression nut; 41-annular mounting part; 5-decoupling bearings; 6-a compression ring; 7-positioning pin.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
The terms "first," "second," and the like, herein are used for convenience in describing two or more structures or components that are identical or similar in structure and/or function and do not denote any particular limitation in order and/or importance.
Referring to fig. 1-3, fig. 1 is a schematic structural view of an embodiment of an auxiliary assembly fixture for a crankshaft oil seal assembly according to the present invention; FIG. 2 is a schematic structural view of the auxiliary assembly fixture of the crankshaft oil seal assembly of FIG. 1 at a second angle; fig. 3 is a partial sectional view of the auxiliary assembly tool for the crankshaft oil seal assembly in fig. 2.
The utility model provides a crankshaft oil seal assembly auxiliary assembly frock, include:
the oil seal device comprises a bottom plate 1, wherein a positioning part and a connecting screw rod 2 are arranged at a preset position of the bottom plate 1, and the positioning part is used for fixing an oil seal seat;
the pressing plate 3 is used for fixing an oil seal, and the pressing plate 3 is movably sleeved with the connecting screw rod 2;
the thrust component comprises a compression nut 4 and a decoupling bearing 5, wherein the compression nut 4 is screwed on a connecting screw rod 2, the decoupling bearing 5 is movably sleeved on the connecting screw rod 2 and is located between the compression nut 4 and a pressing plate 3, the decoupling bearing 5 comprises a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are rotatably connected through a rolling component, the compression nut 4 is fixedly connected with the first connecting portion, and the second connecting portion can be abutted against the pressing plate 3.
It should be noted that the second connecting portion abuts against the pressing plate 3, and the second connecting portion may be in direct contact with the pressing plate 3 or may be in indirect contact with the pressing plate 3, that is, an intermediate member is disposed between the decoupling bearing 5 and the pressing plate 3, and the decoupling bearing 5 transmits the pressing force to the intermediate member, and then transmits the pressing force to the pressing plate 3 through the intermediate member. In this embodiment, the second connecting portion and the pressing plate 3 indirectly contact through the intermediate member, and the specific structure of the intermediate member will be described later.
Because the nut in the prior art is directly contacted with the pressure plate, when the nut is screwed, static friction is generated due to relative rotation between the nut and the pressure plate, so that the applied actual torque is not completely acted on the pressing force, and the pressing force is not uniformly applied; based on this, the utility model discloses add decoupling zero bearing 5 between gland nut 4 and clamp plate 3, and the first connecting portion fixed connection of gland nut 4 and decoupling zero part 5, when screwing gland nut 4 promptly, first connecting portion can rotate with gland nut 4 is synchronous, pass through rolling member rotatable coupling between first connecting portion and the second connecting portion simultaneously, namely the second connecting portion still keeps quiescent condition, and frictional force between first connecting portion and the second connecting portion is very little, when gland nut 4 moves to the second connecting portion along connecting screw 2 and can with clamp plate 3 butt, keep relative quiescent condition between second connecting portion and the clamp plate 3, transmit the packing force to clamp plate 3, it is thus seen that, in the whole power transmission process by gland nut 4 to clamp plate 3, almost no power loss, the actual moment of torsion that is applyed to gland nut 4 is almost all acted on the packing force to clamp plate 3, and the packing force is applyed evenly, guarantee that the oil blanket skeleton can not warp, and then guarantee that the oil blanket gradient after the pressure equipment is located error range, avoid appearing the condition that the bent axle oil blanket is deviate from in the use.
Wherein, decoupling zero bearing 5 can be radial bearing, also can be thrust bearing, and different bearing mounting means are different, specifically:
referring to fig. 3, when the decoupling bearing 5 is a radial bearing, an annular mounting portion 41 is disposed at an end of the gland nut 4 facing the pressing plate 3, an inner ring of the radial bearing is the first connecting portion and is fixedly connected to the annular mounting portion 41, and an outer ring of the radial bearing is the second connecting portion and can abut against the pressing plate 3.
As can be seen from fig. 3, in this embodiment, the inner ring of the radial bearing is also abutted to the pressure plate 3, but since the contact area is very small, the power loss generated by overcoming the static friction is also very small, and the test verifies that the mounting accuracy of the oil seal assembly is not affected. Of course, in practical application, the structure of the radial bearing can be improved, and the axial length of the inner ring is shortened, so that the radial bearing is only abutted against the pressure plate 3 through the outer ring, and at the moment, the power loss is not generated due to static friction, and the radial bearing is a more preferable technical scheme.
In addition, in this embodiment, the annular mounting portion 41 is fixed by interference fit with the inner ring of the radial bearing. In practical application, the annular mounting portion 41 and the inner ring of the radial bearing may be fixed by welding or the like.
In this embodiment, the inner ring of the radial bearing is a first connecting portion, and is fitted with the annular mounting portion 41. In practical application, it is also feasible that radial bearing's outer lane is first connecting portion, and at this moment, radial bearing can insert inside annular installation portion 41, and radial bearing's outer lane and annular installation portion 41's internal peripheral wall interference fit realize fixing.
When the decoupling bearing 5 adopts a thrust bearing, the thrust bearing comprises a first end wall and a second end wall, the first end wall is the first connecting part and is fixedly connected with the compression nut 4, and the second end wall is the second connecting part and can be abutted against the pressing plate 3; it can be seen that in this embodiment too, no power losses are generated by static friction. The first end wall and the gland nut 4 may be fixed by welding.
The utility model discloses in, decoupling zero bearing 5 is ball bearing, and aforementioned rolling part is the ball promptly. It is of course also possible to use needle bearings, in which case the rolling elements are needles.
With continued reference to fig. 1-3, the pressure plate 3 includes a main body 31, and a protrusion portion disposed on the main body 31, the protrusion portion forming a step surface facing the base plate 1, the main body 31 is used for sleeving an oil seal, and the diameter of the main body 31 matches with the inner diameter of the oil seal.
Thus, during the press mounting process, the oil seal is sleeved on the main body part 31 and abuts against the step surface, the bulge part applies pressing force to the oil seal, and the oil seal is pressed and mounted in the oil seal seat. The diameter of the main body part 31 is matched with the inner diameter of the oil seal, so that the preforming of the oil seal sealing lip can be realized in the press fitting process, the independent oil seal sealing lip preforming process is omitted, the working efficiency is improved, and the press fitting cost is reduced.
Further, in the present embodiment, the protruding portion includes a plurality of protrusions 32, and the plurality of protrusions 32 are distributed at intervals in the circumferential direction of the main body portion 31. Therefore, whether the oil seal is pressed in place or not can be checked in real time through the gaps among the bulges 32, and the visual checking function is realized.
With continued reference to fig. 1-3, the aforementioned intermediate component is a clamp ring 6, the clamp ring 6 is movably sleeved on the connecting screw rod 2 and is located between the decoupling bearing 5 and the pressure plate 3, and the area of the axial end wall of the clamp ring 6 is larger than that of the axial end wall of the decoupling bearing 5.
Therefore, the stress area of the pressing plate 3 is increased, the pressing force borne by the pressing plate 3 is more uniform, the oil seal is ensured to be continuously pressed in a plane in the press fitting process, and the installation precision is further improved. It can be understood that, in practical applications, the structure of the decoupling bearing 5 may also be improved, for example, the diameter of the second connecting portion of the decoupling bearing 5 is increased, that is, the force-bearing area of the pressure plate 3 is increased, and at this time, it is also feasible that the clamp ring 6 is not provided. Of course, the additional arrangement of the compression ring 6 can reduce the processing difficulty and the cost while achieving the technical effects, and is a more preferable technical scheme.
Further, the utility model discloses in, positioning element's quantity is more than two sets of, and each positioning element of group is used for the oil blanket seat of fixed size and specification. Therefore, the utility model discloses bent axle oil blanket assembly auxiliary assembly frock can fix the oil blanket seat of different specifications, satisfies the assembly demand of different specification oil blanket assemblies, and application scope is wider, and the practicality is stronger.
As shown in fig. 1 and fig. 2, the positioning component includes a positioning pin 7 and a fixing portion disposed on the bottom plate 1, and the positioning pin 7 and the fixing portion are detachably fixed. The fixing part can be specifically a positioning hole, the positioning pin 7 is inserted and matched with the positioning hole to realize fixation, and when the size of the fixed oil seal seat changes, the positioning pin 7 can be detached from the current positioning hole and then is inserted and matched with the positioning hole in the corresponding positioning part.
It is right above the utility model provides a crankshaft oil blanket assembly auxiliary assembly frock has carried out detailed introduction, and it is right to have used specific individual example herein the utility model discloses a principle and embodiment have explained, and the explanation of above embodiment is only used for helping understanding the utility model discloses a method and core thought thereof. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.
Claims (10)
1. The utility model provides a crankshaft oil seal assembly auxiliary assembly frock which characterized in that includes:
the oil seal device comprises a base plate (1), wherein a positioning part and a connecting screw rod (2) are arranged at a preset position of the base plate (1), and the positioning part is used for fixing an oil seal seat;
the pressing plate (3) is used for fixing an oil seal, and the connecting screw rod (2) is movably sleeved on the pressing plate (3);
the thrust component comprises a compression nut (4) and a decoupling bearing (5), wherein the compression nut (4) is screwed on the connecting screw rod (2), the decoupling bearing (5) is movably sleeved on the connecting screw rod (2) and is positioned between the compression nut (4) and the pressing plate (3), the decoupling bearing (5) comprises a first connecting part and a second connecting part, the first connecting part is rotatably connected with the second connecting part through a rolling component, the compression nut (4) is fixedly connected with the first connecting part, and the second connecting part can be abutted against the pressing plate (3).
2. The auxiliary assembly tool for the crankshaft oil seal assembly as claimed in claim 1, wherein an annular mounting portion (41) is arranged at one end, facing the pressure plate (3), of the compression nut (4), the decoupling bearing (5) is a radial bearing, one of an inner ring and an outer ring of the radial bearing is the first connecting portion and is fixedly connected with the annular mounting portion (41), and the other is the second connecting portion and can be abutted against the pressure plate (3).
3. The auxiliary assembly tool for the crankshaft oil seal assembly according to claim 2, wherein the annular mounting portion (41) is in interference fit with an inner ring/outer ring of the radial bearing.
4. The auxiliary assembling tool for the crankshaft oil seal assembly according to claim 1, wherein the decoupling bearing (5) is a thrust bearing, the thrust bearing comprises a first end wall and a second end wall, the first end wall is the first connecting portion and is fixedly connected with a compression nut (4), and the second end wall is the second connecting portion and can be abutted to the pressing plate (3).
5. The auxiliary assembling tool for the crankshaft oil seal assembly according to any one of claims 1 to 4, wherein the decoupling bearing (5) is a ball bearing, and the rolling component is a ball.
6. The auxiliary assembling tool for the crankshaft oil seal assembly as claimed in any one of claims 1 to 4, wherein the pressure plate (3) comprises a main body portion (31) and a bulge portion arranged on the main body portion (31), the bulge portion forms a step surface facing the bottom plate (1), and the diameter of the main body portion (31) is matched with the inner diameter of the oil seal.
7. The auxiliary assembling tool for the crankshaft oil seal assembly as claimed in claim 6, wherein the protruding portion comprises a plurality of protrusions (32), and the plurality of protrusions (32) are distributed at intervals along the circumferential direction of the main body portion (31).
8. The crankshaft oil seal assembly auxiliary assembling tool according to any one of claims 1 to 4, wherein the thrust component further comprises a compression ring (6), the compression ring (6) is movably sleeved on the connecting screw rod (2) and is located between the decoupling bearing (5) and the pressure plate (3), and the area of the axial end wall of the compression ring (6) is larger than that of the axial end wall of the decoupling bearing (5).
9. The auxiliary assembling tool for the crankshaft oil seal assembly according to any one of claims 1 to 4, wherein the number of the positioning parts is more than two, and each group of the positioning parts is used for fixing the oil seal seat with one size and specification.
10. The auxiliary assembling tool for the crankshaft oil seal assembly according to claim 9, wherein the positioning component comprises a positioning pin (7) and a fixing part arranged on the bottom plate (1), and the positioning pin (7) and the fixing part are detachably fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221876486.1U CN217801372U (en) | 2022-07-20 | 2022-07-20 | Auxiliary assembling tool for crankshaft oil seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221876486.1U CN217801372U (en) | 2022-07-20 | 2022-07-20 | Auxiliary assembling tool for crankshaft oil seal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217801372U true CN217801372U (en) | 2022-11-15 |
Family
ID=83967329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221876486.1U Active CN217801372U (en) | 2022-07-20 | 2022-07-20 | Auxiliary assembling tool for crankshaft oil seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217801372U (en) |
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2022
- 2022-07-20 CN CN202221876486.1U patent/CN217801372U/en active Active
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