CN214868518U - Big and small bearing press mounting equipment - Google Patents
Big and small bearing press mounting equipment Download PDFInfo
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- CN214868518U CN214868518U CN202120652126.2U CN202120652126U CN214868518U CN 214868518 U CN214868518 U CN 214868518U CN 202120652126 U CN202120652126 U CN 202120652126U CN 214868518 U CN214868518 U CN 214868518U
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Abstract
The utility model belongs to the technical field of bearing pressure equipment, specifically disclose big or small bearing pressure equipment for with big bearing and little bearing pressure equipment on differential mechanism casing, including brace table and pressure head structure, the pressure head structure includes main pressure head and vice pressure head, and the coaxial connecting hole of having seted up in the main pressure head, sliding connection has the depression bar in the connecting hole, and the depression bar top is fixed with the elastic component, and vice pressure head is fixed in the depression bar bottom, and is located the main pressure head outside, and vice pressure head diameter is the same with the internal diameter of little bearing, is fixed with spacing post on the brace table, and spacing post and the coaxial setting of vice pressure head, the diameter of spacing post is less than the internal diameter of installing the round platform down, and the brace table is fixed with a plurality of locating pins, and a plurality of locating pins form same inscribed circle, and the diameter of inscribed circle is the same with the external diameter of big bearing. Adopt the utility model discloses a scheme can be with the disposable pressure equipment of big or small bearing to the variable counter casing, can guarantee the coaxial between the big or small bearing simultaneously again, guarantees the accuracy nature of pressure equipment.
Description
Technical Field
The utility model belongs to the technical field of bearing pressure equipment, concretely relates to big and small bearing pressure equipment.
Background
The common differential mainly comprises planetary gears, a planetary gear carrier, a half axle gear and other parts, wherein the planetary gear carrier is fixed on a differential shell through various connecting parts, the differential shell is usually square or cylindrical, an upper mounting circular table is integrally formed at the top of the shell, a lower mounting circular table is integrally formed at the bottom of the shell, the outer diameter of the upper mounting circular table is smaller than that of the lower mounting circular table, therefore, a small bearing needs to be pressed outside the upper mounting circular table, and a large bearing is mounted outside the lower mounting circular table.
The process of present pressure equipment bearing is, earlier with big bearing pressure equipment to the outside of installing the round platform down, then need overturn differential mechanism casing, again with little bearing pressure equipment to little installation round platform on, consequently present pressure equipment process needs two steps just can accomplish, and this in-process needs adopt lifting device to overturn differential mechanism casing, and needs fix a position once more for the efficiency of pressure equipment descends, and operating personnel's intensity of labour is great.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists among the prior art, the utility model provides a big and small bearing pressure equipment to solve present pressure equipment process and need two steps just can accomplish, and this in-process need adopt lifting device to overturn differential mechanism casing, and need fix a position once more, make the efficiency of pressure equipment descend, the great problem of operating personnel's intensity of labour.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the large bearing and the small bearing press-fitting equipment are used for press-fitting the large bearing and the small bearing on a differential shell, the differential shell comprises an upper mounting circular table and a lower mounting circular table which are coaxial, the outer diameter of the upper mounting circular table is smaller than that of the lower mounting circular table, and the differential shell comprises a supporting table and a pressure head structure, the pressure head structure comprises a main pressure head and an auxiliary pressure head, a connecting hole is coaxially arranged in the main pressure head, a pressure rod is connected in the connecting hole in a sliding way, an elastic part is fixed at the top of the pressure rod, the auxiliary pressure head is fixed at the bottom of the pressure rod, and is positioned outside the main pressure head, the diameter of the auxiliary pressure head is the same as the inner diameter of the small bearing, a limiting column is fixed on the support table and is coaxially arranged with the auxiliary pressure head, the diameter of the limiting column is smaller than the inner diameter of the lower mounting round platform, a plurality of positioning pins are fixed on the supporting platform, the positioning pins form the same inscribed circle, the inscribed circle is coaxial with the positioning column, and the diameter of the inscribed circle is the same as the outer diameter of the large bearing.
Compared with the prior art, the utility model discloses following beneficial effect has:
in the scheme, the large bearing is placed outside the positioning column, the positioning is carried out through the positioning pins on the supporting table, the large bearing and the positioning column are enabled to be coaxial, and then the small bearing is sleeved outside the auxiliary pressure head, so that the large bearing and the small bearing are enabled to be coaxial; through the first downstream of pressure output device drive pressure head on the press, when vice pressure head and last installation round platform contact, vice pressure head is obstructed to upwards slide along the connecting hole, and when main pressure head removed to contact with the undersetting, promote the undersetting and break away from vice pressure head, and the outside of installing the round platform is pressed to in-process pressure equipment that constantly moves down at main pressure head.
After the small bearing is pressed, the pressure head structure continues to move downwards, and because the small bearing is blocked from moving, pressure is transmitted to the differential shell, so that the lower mounting circular table moves downwards along the outer wall of the positioning column, and the large bearing is pressed outside the lower mounting circular table; after the press mounting is completed, the pressure head structure moves upwards, and when the auxiliary pressure head leaves the upper mounting circular truncated cone, the auxiliary pressure head slides downwards under the action of the reset of the elastic part and extends out of the connecting hole so as to carry out the press mounting of the bearing next time.
Therefore, the adoption of the scheme can not only press-fit the big and small bearings to the variable counter shell at one time, but also ensure the coaxiality between the big and small bearings, so that the problem of deviation of the big and small bearings cannot occur in the press-fitting process, and the accuracy of the press-fitting is ensured.
Further, the connecting hole link up the top of main pressure head, and main pressure head top can be dismantled and be connected with the roof, is equipped with a plurality of mounting holes on the roof. The arrangement facilitates maintenance and replacement of the elastic part in the connecting hole on the one hand, and the pressure head structure is conveniently fixed on the pressure output device on the other hand.
Furthermore, the auxiliary pressure head is detachably connected with the pressure rod. Because when continuously carrying out pressure equipment work, vice pressure head bottom pressurized, produce wearing and tearing between outer wall and the little bearing, consequently need dismantle the change to vice pressure head after working for a period.
Furthermore, a counter bore is formed in the auxiliary pressure head, a threaded hole is formed in the bottom of the pressure rod, and a bolt is connected in the counter bore and the threaded hole. The arrangement does not affect the installation of the small bearing outside the auxiliary pressure head.
Furthermore, a rubber layer is bonded on the outer wall of the auxiliary pressure head, and the wall thickness of the rubber layer is not more than 2 mm. The rubber layer is arranged to prevent the small bearing from falling off from the outside of the auxiliary pressure head before press mounting, and simultaneously prevent the inner wall of the small bearing from generating rigid abrasion in the press mounting process.
Furthermore, a plurality of vertical grooves are formed in the outer wall of the rubber layer, and the vertical grooves are distributed at equal intervals along the circumferential direction of the rubber layer. The vertical grooves are arranged to reduce the contact area between the rubber layer and the inner ring of the small bearing, so that friction is reduced, and the main pressure head is convenient to press the small bearing to the outside of the upper mounting circular truncated cone under the condition that the small bearing can be positioned.
Furthermore, an annular groove coaxial with the positioning column is formed in the supporting platform, and the depth of the annular groove is not more than 1 mm. The arrangement of the ring groove enables the lower mounting circular truncated cone to have continuous downward displacement relative to the large bearing, so that the large bearing can be completely pressed and mounted outside the lower mounting circular truncated cone.
Further, a plurality of semicircular grooves are formed in the outer wall of the positioning column, positioning rods are fixed in the semicircular grooves, the outer wall portions of the positioning rods are located outside the semicircular grooves, the outer walls of the positioning rods form the same circumscribed circle, and the diameter of the circumscribed circle exceeds the inner diameter of the round platform which is installed to be 0.3-0.5 mm. Therefore, before press fitting, the differential shell is limited outside the positioning columns through the matching of the positioning rods, the arrangement of the positioning rods converts the friction of surface contact into line contact, reduces the abrasion between the inner wall of the upper and lower installation round tables of the differential shell and the positioning rods, and is convenient to take out.
Drawings
Fig. 1 is a schematic structural view of a differential case according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of the pressure head structure in the embodiment of the present invention.
Fig. 3 is a cross-sectional view of a support table in an embodiment of the present invention.
Fig. 4 is a sectional view taken along the line a-a in fig. 3.
Reference numerals in the drawings of the specification include: the differential mechanism comprises a differential mechanism shell 1, an upper mounting circular truncated cone 2, a lower mounting circular truncated cone 3, a small bearing 4, a large bearing 5, a main pressure head 10, a top plate 11, a mounting hole 12, a connecting hole 13, a pressure rod 14, an elastic piece 15, an auxiliary pressure head 16, a bolt 17, a support table 20, a positioning column 21, a positioning rod 22, an annular groove 23 and a positioning pin 24.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, and specific embodiments will be given.
In the embodiment, as shown in fig. 2 and 3, the large and small bearing press-fitting device is used for press-fitting a bearing onto a differential case 1, and the differential case 1 in the embodiment has a structure as shown in fig. 1 and comprises a square or cylindrical case, an upper mounting circular truncated cone 2 is integrally formed at the top of the case, and a lower mounting circular truncated cone 3 is integrally formed at the bottom of the case, wherein the outer diameter of the upper mounting circular truncated cone 2 is smaller than that of the lower mounting circular truncated cone 3, so that the small bearing 4 is press-fitted to the outside of the upper mounting circular truncated cone 2, and the large bearing 5 is mounted to the outside of the lower mounting circular truncated cone 3.
Specifically, the big and small bearing press-fitting equipment comprises a supporting table 20 and a pressure head structure, wherein the pressure head structure is vertically fixed on a pressure output device of a press machine, the pressure head structure comprises a main pressure head 10, the top of the main pressure head 10 is detachably connected with a top plate 11 through a bolt 17, a plurality of mounting holes 12 are arranged on the top plate 11, a vertically arranged connecting hole 13 is formed in the main pressure head 10, the connecting hole 13 penetrates through the top and the bottom of the main pressure head 10, a pressure rod 14 is vertically and slidably connected in the connecting hole 13, an elastic part 15 is fixed between the top of the pressure rod 14 and the top plate 11, the elastic part 15 is a pressure spring in the embodiment, the bottom of the pressure rod 14 is detachably connected with an auxiliary pressure head 16 through a bolt 17, the auxiliary pressure head 16 is positioned outside the connecting hole 13, specifically, a counter bore is vertically formed in the auxiliary pressure head 16, a threaded hole is formed in the bottom of the pressure rod 14, and the counter bore and the threaded hole are connected through the bolt 17, the fixing of the secondary ram 16 to the ram 14 is achieved.
The outer diameter of the auxiliary pressure head 16 is the same as the inner diameter of the small bearing 4, a rubber layer (not shown in the figure) is bonded on the outer wall of the auxiliary pressure head 16, the wall thickness of the rubber layer is not more than 2mm, a plurality of vertical grooves are formed in the rubber layer and distributed at equal intervals along the circumferential direction of the rubber layer, and the small bearing 4 for press mounting is sleeved outside the rubber layer in advance.
A positioning column 21 is integrally formed on the supporting table 20, the diameter of the positioning column 21 is smaller than the inner diameter of the lower mounting circular table 3, a plurality of semicircular grooves are formed in the outer wall of the positioning column 21 and distributed at equal intervals around the circumferential direction of the positioning column 21, positioning rods 22 are fixed in the semicircular grooves, the outer wall portions of the positioning rods 22 are located outside the semicircular grooves, and as shown in fig. 4, the outer walls of the positioning rods 22 form a same circumscribed circle, and the diameter of the circumscribed circle exceeds the inner diameter of the lower mounting circular table 3 by 0.5 mm; offer the annular 23 coaxial with reference column 21 on brace table 20, the external diameter of annular 23 is less than the external diameter of big bearing 5, and the degree of depth of annular 23 is no longer than 1mm, still is equipped with a plurality of locating pins 24 at brace table 20, and locating pin 24 forms same inscribed circle, and this inscribed circle is coaxial with reference column 21, and the diameter of this inscribed circle equals with the external diameter of big bearing 5.
Before carrying out the pressure equipment, place big bearing 5 in the outside of reference column 21, and spacing through a plurality of locating pins 24 on brace table 20, make big bearing 5 and reference column 21 keep coaxial, overlap little bearing 4 cover outside vice pressure head 16 again, prepare to place the differential mechanism casing 1 of waiting the pressure equipment after accomplishing on brace table 20, specifically, through making down installation round platform 3 along the outside locating lever 22 downstream of reference column 21, because the circumscribed circle that a plurality of locating levers 22 formed surpasss the internal diameter of installing round platform 3 down, consequently, it can the chucking in reference column 21 outside to install round platform 3 down.
Through the downward movement of pressure output device drive pressure head structure, when vice pressure head 16 and last installation round platform 2 contact, vice pressure head 16 is obstructed to upwards slide along connecting hole 13, and when main pressure head 10 removed to contact with little bearing 4, promote little bearing 4 and break away from vice pressure head 16, and the outside of installing round platform 2 is pressed fitting to the in-process that constantly moves down at main pressure head 10.
When the small bearing 4 is pressed and the pressure head structure continues to move downwards, the pressure is transmitted to the differential case 1 because the small bearing 4 is blocked from moving, so that the lower mounting circular truncated cone 3 continuously moves downwards along the positioning rod 22 on the outer wall of the positioning column 21, and the large bearing 5 is pressed outside the lower mounting circular truncated cone 3; after the press mounting is completed, the pressing head structure moves upwards, and when the auxiliary pressing head 16 leaves the upper mounting circular truncated cone 2, the auxiliary pressing head slides downwards under the action of the reset of the elastic piece 15 so as to carry out the press mounting of the bearing at the next time.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (8)
1. Big and small bearing pressure equipment for with big bearing and little bearing pressure equipment on differential mechanism casing, differential mechanism casing includes coaxial last installation round platform and lower installation round platform, goes up the external diameter of installation round platform and is less than the external diameter of installing the round platform down, its characterized in that: including brace table and pressure head structure, the pressure head structure includes main pressure head and vice pressure head, the coaxial connecting hole of having seted up in the main pressure head, sliding connection has the depression bar in the connecting hole, and the depression bar top is fixed with the elastic component, and vice pressure head is fixed in the depression bar bottom, and is located the main pressure head outside, and vice pressure head diameter is the same with the internal diameter of little bearing, is fixed with spacing post on the brace table, spacing post and the coaxial setting of vice pressure head, the diameter of spacing post is less than the internal diameter of installation round platform down, is fixed with a plurality of locating pins on the brace table, and a plurality of locating pins form same inscribed circle, and inscribed circle is coaxial with the reference column, and the diameter of inscribed circle is the same with the external diameter of big bearing.
2. A large and small bearing press-fitting device according to claim 1, wherein: the connecting hole link up the top of main pressure head, and main pressure head top can be dismantled and be connected with the roof, is equipped with a plurality of mounting holes on the roof.
3. A large and small bearing press-fitting device according to claim 1, wherein: the auxiliary pressure head is detachably connected with the pressure rod.
4. A large and small bearing press-fitting device according to claim 3, wherein: a counter bore is formed in the auxiliary pressure head, a threaded hole is formed in the bottom of the pressure rod, and a bolt is connected into the counter bore and the threaded hole.
5. A large and small bearing press-fitting device according to claim 1, wherein: the outer wall of the auxiliary pressure head is bonded with a rubber layer, and the wall thickness of the rubber layer is not more than 2 mm.
6. A large and small bearing press-fitting device according to claim 5, wherein: a plurality of vertical grooves are formed in the outer wall of the rubber layer and are distributed at equal intervals along the circumferential direction of the rubber layer.
7. A large and small bearing press-fitting device according to claim 1, wherein: an annular groove coaxial with the positioning column is formed in the supporting platform, and the depth of the annular groove is not more than 1 mm.
8. A large and small bearing press-fitting device according to claim 7, wherein: a plurality of semicircular grooves are formed in the outer wall of the positioning column, positioning rods are fixed in the semicircular grooves, the outer wall portions of the positioning rods are located outside the semicircular grooves, the outer walls of the plurality of positioning rods form the same circumscribed circle, and the diameter of the circumscribed circle exceeds the inner diameter of the round platform which is installed below by 0.3-0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120652126.2U CN214868518U (en) | 2021-03-31 | 2021-03-31 | Big and small bearing press mounting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120652126.2U CN214868518U (en) | 2021-03-31 | 2021-03-31 | Big and small bearing press mounting equipment |
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| Publication Number | Publication Date |
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| CN214868518U true CN214868518U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120652126.2U Active CN214868518U (en) | 2021-03-31 | 2021-03-31 | Big and small bearing press mounting equipment |
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| CN (1) | CN214868518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117961481A (en) * | 2024-03-29 | 2024-05-03 | 博世汽车转向系统（济南）有限公司 | Press fitting tool and shaft seal press fitting method |
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2021
- 2021-03-31 CN CN202120652126.2U patent/CN214868518U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117961481A (en) * | 2024-03-29 | 2024-05-03 | 博世汽车转向系统（济南）有限公司 | Press fitting tool and shaft seal press fitting method |
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